Dry-cleaning solvent composition

Abstract

A dry-cleaning solvent composition for dry-cleaning is disclosed, comprising a compound or solvent selected from the group consisting of propylene glycol methyl ether formate, propylene glycol methyl ether acetate, propylene glycol methyl ether propionate, propylene glycol methyl ether butyrate, propylene glycol ethyl ether formate, propylene glycol ethyl ether acetate, propylene glycol ethyl ether propionate, propylene glycol ethyl ether butyrate, ethylene glycol methyl ether formate, ethylene glycol methyl ether acetate, ethylene glycol methyl ether propionate. ethylene glycol methyl ether butyrate, and the mixture thereof. The dry-cleaning solvent composition may further comprise a compound or solvent selected from the group consisting of perchloroethylene, stoddard solvent type I, stoddard solvent type II, and the mixture thereof, in an amount of below 70 wt %. The dry-cleaning solvent composition has properties of low pollution and low toxicity and is a good dry-cleaning solvent for the textile such as clothes and fabrics. Further, the dry-cleaning solvent composition has small influence on physical properties and color fastness of the fabric so that the dry-cleaning solvent composition is adapted as a dry-cleaning solvent for replacing conventional dry-cleaning solvents, such as perchloroethylene, stoddard solvent type I and stoddard solvent type II.

Description

FIELD OF THE INVENTION

This invention relates to a dry-cleaning solvent and in particular to a dry-cleaning solvent composition having properties of low pollution and low toxicity and used as a dry-cleaning solvent for the textile such as fabrics and clothes.

BACKGROUND OF THE INVENTION

Organic solvents, such as perchloroethylene, trifluoro-trichloroethane, trichloroethane etc., are conventionally used as a dry-cleaning solvent for dry-cleaning the textile, because hydrophilic fibers of the textile are not expanded and deformed when they are dry-cleaned with the organic solvents and the capability of the organic solvent in removing greasy dirts is significant.

Further, perchloroethylene has an excellent chemical stability which is also inflammable and inexpensive. Nevertheless, it is harmful if an excess quantity of perchloroethylene is inhaled, which may cause damage to liver, kidney, skin, sense organs, nerve systems etc. It is known that dry cleaners inhale an excess quantity of perchloroethylene may easily get liver cancer, kidney cancer, bladder cancer etc. For trifluorotrichloroethane and trichloroethane, they damage the ozone of the earth and cause greenhouse effect, so they are not going to be used after year 2000.

Even in Taiwan, stoddard solvents type I and type II which are petroleum solvents produced by the Chinese Petroleum Corporation can also be used as a dry-cleaning solvent for dry-cleaning the textile. Stoddard solvents type I and type II likely damage our living environment and hurt the health of dry cleaning workers, and they can corrode fibers of the textile during dry cleaning and have a characteristic of exploding with flame so that these petroleum solvents are dangerous in use and storage.

Thus, a dry cleaning solvent is required to overcome the above problems and completely replace the above-mentioned conventional organic solvents.

SUMMARY OF THE INVENTION

The object of the present invention is to provide a dry-cleaning solvent composition which has properties of low pollution and low toxicity and may slightly affect the color fastness of the fabric when the fabric are dry-cleaned with the dry-cleaning solvent composition. The composition is an environmentally friendly solvent thereof.

The present invention provides a dry-cleaning solvent composition comprising a compound or solvent selected from the group consisting of propylene glycol methyl ether formate (also known as propylene glycol mono methyl ether formate, PMP), propylene glycol methyl ether acetate (also known as propylene glycol mono methyl ether acetate), propylene glycol methyl ether propionate (also known as propylene glycol mono methyl ether propionate), propylene glycol methyl ether butyrate (also known as propylene glycol mono methyl ether butyrate), propylene glycol ethyl ether formate (also known as propylene glycol mono ethyl ether formate), propylene glycol ethyl ether acetate (also known as propylene glycol mono ethyl ether acetate), propylene glycol ethyl ether propionate (also known as propylene glycol mono ethyl ether propionate), propylene glycol ethyl ether butyrate (also known as propylene glycol mono ethyl ether butyrate), ethylene glycol methyl ether formate (ethylene glycol mono methyl ether formate), ethylene glycol methyl ether acetate (ethylene glycol mono methyl ether acetate), ethylene glycol methyl ether priopionate (ethylene glycol mono methyl ether propionate), ethylene glycol methyl ether butyrate (ethylene glycol mono methyl ether butyrate), and the mixture thereof. The dry-cleaning solvent may further comprise below 70 wt % of a compound or solvent selected from the group consisting of perchloroethylene, stoddard solvent type I, stoddard solvent type II, and the mixture thereof.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a conventional axial diagram showing the hue difference and the chroma difference.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

The present invention will be better understood from the following Examples 1 to 12, wherein Examples 1 to 9 describe the differences between propylene glycol methyl ether propionate used as a dry-cleaning solvent in accordance with the present invention and the conventional dry-cleaning solvents, such as perchloroethylene, stoddard solvents type I and type II in term of degree of dry-cleaning fabrics, and Examples 10 to 12 describe the differences between different dry-cleaning solvent compositions in accordance with the present invention in term of degree of dry-cleaning fabrics.

Propylene glycol methyl ether propionate used in Examples 1 to 9 is obtained by means of reaction (1) and reaction (2) shown in the following:

 C 6 H 6 O 4 +CH 4 O→C 4 H 10 O 2 (1)

propylene oxide methanol propylene glycol methyl ether

C 4 H 10 O 2 +C 2 H 6 O 2 →C 7 H 14 O 3 (2)

propionic acid propylene glycol methyl ether propionate wherein reaction (2) has been disclosed in U.S. Pat. No. 5,239,111 by Chu et al.

Methotate is used as a trademark or commercial name to identify the commercial propylene glycol methyl ether propionate manufactured by Shiny Chemical Industry Co., Ltd., Taiwan. The specifications of Methotate are shown in the following:

appearance: transparent liquid

hue: 10 Pt-Co Test Max.

specific gravity (20/20° C.): 0.945-0.955

acidity: 0.1% of acetic acid by weight

purity: 99.5% of propylene glycol methyl ether propionate by weight

water content: 0.1% of water by weight

non-vaporizing component: 0.02 g/100 ml

distillation range (from original state to dry state): 157 to 167° C.

Further, the physical properties of the commercial propylene glycol methyl ether propionate, Methotate, are shown in the following:

molecular formula:

molecular weight: 146.0

specific gravity(20° C.,1 atm): 0.95

boiling point(1 atm): 160.0° C.

solidifying point: below −50.0° C.

flash point: 56.0° C.

flame point: 360.0° C.

viscosity (20° C.): 1.2 cps

evaporating rate (NBAC=100): 19

vapor pressure (20° C.): 0.9 mmHg

solubility: 20 ml

degree of dry cleaning: 9

drying time: 27 min

“NBAC=100” refers the evaporating rate of normal butyl acetate (NBAC) is taken as 100, so that of Methotate is 19. The solubility is measured in the condition “weight of paint (amino resin): weight of solvent (Methotate sample+toluene)=2:1” using hexane to titrate the solution. The degree of cleaning is measured in the following: immerse a plate in amino resin paint, take it out in air for one minute for drying, and immerse it in Methotate thinner for 30 seconds, take it out in air for 30 seconds for drying, this is one process cycle, then immerse the plate in Methotate thinner for 30 seconds again, repeat the process until the painted film is lost; the unit of degree of cleaning is the number of the cycle, the smaller the number is, the larger degree of cleaning is. The drying time is measured in the following: weight of paint (amino resin): weight of Methotate thinner=2:1, coat the paint on a plate, and use fingers to sense the coated film to identify when the file becomes dried so as to measure the drying time.

Further, propylene glycol methyl ether propionate is not toxic according to a toxicity test carried out by Taiwan Testing Center for Agriculture Pesticide, the testing results for Methotate are shown as follows:

acute oral toxicity (mouse)>12000 mg/Kg

acute skin toxicity (mouse)>12000 mg/Kg

acute inhaling toxicity (mouse)>6072 mg/Kg

deformed fetus (mouse): index=0

acute toxicity (water flea)>100 mg/Kg

acute toxicity (carp): 60 to 100 mg/Kg

original skin irritation (rabbit): index=0

original eye irritation (rabbit): index=0

biodegradable test (28 days):

Biochemical Oxygen Demand(B O D) 94%
Total Organic Carbon(T O C)      97%
Gas Chromatography(G C)          100%

Therefore, propylene glycol methyl ether propionate is not toxic.

The properties of propylene glycol methyl ether propionate, Methotate, and those of the conventional dry cleaning solvents, such as perchloroethylene, stoddard solvent type I and stoddard solvent type II are shown in Table 1. As shown in Table 1, propylene glycol methyl ether propionate contains no fluorine and chlorine elements and is not a toxic organic solvent. Further, it is not dangerous in use and storage. The propylene glycol methyl ether propionate used in Examples 1 to 12 of the invention refers “Methotate” unless otherwise specified. The present invention discloses different experiments, the following Examples 1 to 9, for illustrating the differences between propylene glycol methyl ether propionate and the three conventional dry-cleaning solvents, perchloroethylene, stoddard solvents type I and type II in term of degree of dry-cleaning and proving that propylene glycol methyl ether propionate is superior to the conventional dry-cleaning solvents in term of degree of dry cleaning so that propylene glycol methyl ether propionate is adapted to be used as a dry-cleaning solvent.

The dry-cleaning solvents, the textile such as dyed fabrics, undyed fabrics and undyed yarns, the tests of dry-cleaning and the tests of degree of dry-cleaning fabrics demonstrated Examples 1 to 9 are described in the following.

The dry-cleaning solvents used in Examples 1 to 9 are respectively perchloroethylene, stoddard solvents type I and type II in addition to propylene glycol methyl ether propionate.

The dyed fabrics used in Examples 1 to 9 are taken randomly from markets and are nine different kinds of dyed fabrics including four pure fabrics and five blend fabrics, the ingredients thereof are respectively 100% polyester, 100% cotton, 100% wool, 100% nylon, 55% polyester and 45% cotton (hereinafter called “polyester/cotton”), 45% wool and 55% polyacrylonitrile (hereinafter called “wool/polyacrylonitrile”), 45% wool and 55% polyester (hereinafter called “wool/polyester”), 65% polyester and 35% rayon (hereinafter called “polyester/rayon”), and 50% nylon and 50% polyacrylonitrile (hereinafter called “nylon/polyacrylonitrile”).

The undyed fabrics used in Examples 1 to 9 are five different kinds of gray goods, the ingredients thereof are respectively 100% nylon, 100% polyester, 100% silk, 100% cotton, and 100% wool.

The undyed yarns used in Examples 1 to 9 are five different kinds of gray goods, the ingredients thereof are respectively 100% nylon 6, 100% polyester, 100% flax, 100% cotton, and 100% wool.

The dry-cleaning tests of Examples 1 to 9 are carried out under the conditions according to CNS (Chinese National Standards)- 8429 measuring color fastness and CNS-8431 measuring color fastness to organic solvent. All the fabric sample are respectively dry-cleaned with the dry cleaning solvents under following conditions: liquid ratio is 1:40 and temperature is 25±2° C. Then, the sample is placed into a flask. After shaking the flask for about 30 minutes, the sample is dried under the temperature of 60±2° C.

All the dyed fabrics, the undyed fabrics, and the undyed yarns, and are respectively dry-cleaned with the four dry-cleaning solvents according to the above conditions and repeated one time, two and five times, but for propylene glycol methyl ether propionate, the dry-cleaning process are repeated one time, two, five, ten and twenty times. Then, the dry-cleaned sample is tested for the physical property and color fastness. The tests of physical property include a test of bursting strength, a test of softness, a test of degree of shrinkage and a test of tensile strength, and the results thereof are observed and pictured by means of a microscope (enlarging 50 times) and a scanning electron microscope (SEM) (enlarging 1500 times). The tests of color fastness include a test of color fastness to xenon light, a test of color fastness to abrasion and a test of color fastness to dry-cleaning solvent. These are all carried out according to CNS regulations.

In the tests of the degree of cleaning fabrics in Examples 1 to 9, four kinds of standard soil test cloths are taken, the types of the cloth are respectively polyester, cotton, wool, polyester/cotton. The conditions of the tests of degree of cleaning fabrics are similar to those of the above dry-cleaning tests. After the soil test cloths have been dry cleaned, the reflectance, the whiteness index and the yellowness index thereof are measured by means of a color matching system to identify the degree of cleaning fabrics of the dry-cleaning solvents.

With reference to following Examples 1 to 12, they further describe features of the present invention. They are only for the purpose of illustration and by no means of any limitation therefor.

EXAMPLE 1

Observing the Surface of Fabrics After Fabrics are Dry-cleaned with Dry-cleaning Solvents

A. By Means of a Microscope

After the above nine dyed fabrics are respectively dry-cleaned five times with the above four dry-cleaning solvents, except that the dry-cleaning operation is carried out five and ten times with propylene glycol methyl ether propionate. The surface of the dyed fabrics are observed by means of a microscope for disclosing the effect of dry-cleaning solvents on the structures of the dyed fabrics. As a result, the structure of the surfaces of the dyed fabrics after dry cleaned are related to the times of dry-cleaning. That is, the more times of dry-cleaning, the more relaxed the surface structure of the dyed fabrics. The degree of relaxation is also related to the twist of yarn and the thread count of the fabric. For the dyed fabrics, since the thread counts of the dyed fabrics of nylon and wool are greater, the changes in the surface structure thereof are smaller. On the contrary, the thread counts of the dyed fabrics of cotton and polyester/cotton are smaller, so the change in the surface structure thereof are greater.

B. By Means of a Scanning Electron Microscope

As mentioned previously, using a microscope to observe the surfaces of the dyed fabrics is a macroscopic investigation. However using a scanning electron microscope, which enlarges the sample 1500 times for observation of the surfaces of the dyed fabrics, is a microscopic investigation. The change of the surface structure of the dyed fabrics after dry-cleaned can be clearly observed by means of a scanning electron microscope. The results are shown in Table 2.

Table 2 shows that among the four solvents propylene glycol methyl either propionate has smallest influence to fibers of the dyed fabrics except the dyed fabric of wool.

EXAMPLE 2

Testing Effects of Dry-drying Cleaning Solvents on Degree of Cleaning Fabrics

After the soil test cloths of polyester/cotton, wool, cotton and polyester are respectively dry-cleaned with the dry-cleaning solvents, the degrees of cleaning the soil test cloths of the dry-cleaning solvents is measured. The dry-cleaning procedure is carried out under the conditions that temperature is 25±2° C., liquid ratio is 1:40 and dry cleaning time is 30 minutes in a shaking manner and then the soil test cloths which have been dry-cleaned are dried under the temperature of 60±2° C.

Color differences can be analyzed according to Munsell Color Solid Theory and a bright and a chroma of a hue can be decided by means of a solid rectangular coordinate.

According to an opponent-color coordinate recommended by the CIE (Commission International de I'Eclairage) Society in 1976, wherein a redness-greenness coordinate is set to be the “a” coordinate with redness as a positive value and greenness as a negative together with a yellowness-blueness coordinate forms the “b” coordinate wherein yellowness indicates a positive value and blueness indicates a negative value, the two sets of coordinates form a two dimensional coordinate further with a third coordinate which indicates the bright to form the opponent-color coordinate designed by the CIE Lab, a bright value “L” in the third coordinate, a chroma value “a” in the redness-greenness coordinate and a chroma value “b” in the yellowness-blueness coordinate are related to red, blue, green tristimulus values as shown in the following:

L =116×( Y/Yn ) ⅓ −16

a =500×[( X/Xn ) ⅓ −( Y/Yn ) ⅓ ]

b =200×[( Y/Yn ) ⅓ −( Z/Zn ) ⅓ ]

where Xn, Yn, Zn are the tristimulus values of a particular standard illuminate.

The values under D 65 light source are respectively:

Xn=94.83

Yn=100.00

Zn=107.38

wherein the X, Y and Z are respectively the tristimulus values of the sample under illuminate D 65 . The D 65 represents a standard light source corresponding to the spectral energy distribution of the simulated average sunlight.

According to the above equations, a chroma value “c” and a hue value “h” are defined by the CIE Society:

h=tan −1 (b/a)

c=(a 2 +b 2 ) ½

Now define color difference ΔE:

Δ E =((Δ L ) 2 +(Δ a ) 2 +(Δ b ) 2 ) ½

with reference to FIG. 1 , it shows a relationship between these values of chroma, hue angle, chroma difference and hue angle difference. In FIG. 1 , Δc indicates the chroma difference between a chroma value of a specimen sample and a chroma value of a standard sample, and Δh indicates the hue angle difference. By means of the analysis of chroma difference and hue angle difference, the two values Δc and Δh, can be easily obtained.

Tables 3 to 6 show that after the soil test cloth of polyester/cotton is dry-cleaned one time with propylene glycol methyl ether propionate, the bright difference ΔL of the soil test cloth of polyester/cotton increases 4, and after that is dry-cleaned five times, the bright difference increases 4.53, so propylene glycol methyl ether propionate is superior to other three dry cleaning solvents.

For the soil test cloth of wool, all the dry cleaning solvents including propylene glycol methyl ether propionate make bright difference negative, when using propylene glycol methyl ether propionate to dry-clean it two times is better than using the other three dry cleaning solvents.

As per the soil test cloth of polyester, using stoddard solvent type I, stoddard solvent type II, or perchloroethylene to dry-clean it is better than using propylene glycol methyl ether propionate, because after it is dry-cleaned with stoddard solvent type I, stoddard solvent type II, or perchloroethylene, the bright difference is larger than 6.

As per soil test cloth of cotton, using stoddard solvent type I or perchloroethylene to dry clean it is better than using the other two dry-cleaning solvents.

Further, after any of the four soil test cloth is respectively dry-cleaned with the four dry cleaning solvents, the whiteness indexes and the yellowness index thereof are shown in Table 7.

As per soil test cloth of polyester, the whiteness index thereof increases about 7.5 after it is dry-cleaned one time with propylene glycol methyl ether propionate and the whiteness index increases about 13 after it is dry-cleaned more than one time with propylene glycol methyl ether propionate. Further, the whiteness index thereof increases about 11 after it is respectively dry cleaned one time with any one of the other three dry-cleaning solvents, but the increase in whiteness index is not related to the higher number of times of dry cleaning.

As per the soil test cloth of cotton, the whiteness index thereof increases 8 to 10 after it is dry cleaned with any one of the four dry-cleaning solvents.

As per the soil test cloth of polyester/cotton, the whiteness index thereof increases 8 after it is dry-cleaned with propylene glycol methyl ether propionate, and increases about 5 to 7 after it is dry cleaned with any one of the other three dry cleaning solvents.

As per the soil test cloth of wool, the whiteness index thereof increases about 2 after it is dry-cleaned more than one time with propylene glycol methyl ether propionate, and increases about 1 after it is dry-cleaned with stoddard solvent type I or stoddard solvent type II, but the whiteness and yellowness indexes thereof does not change appreciably after it is dry-cleaned with perchloroethylene.

EXAMPLE 3

Testing Effects of Dry-cleaning Solvents on Degree of Shrinking Fabrics

The test in Example 3 is to measure thread counts of the above nine dyed fabrics after the dyed fabrics are respectively dry-cleaned with the above four dry-cleaning solvents. Then, the degree of shrinking the dyed fabrics of the dry-cleaning solvents are obtained by means of the following equation, and the test results are shown in Tables 8 to 16.

The degree of shrinkage

=(fabric scale before dry-cleaned−fabric scale after dry-cleaned)÷fabric scale before dry-cleaned×100%

According to Tables 8 to 16, it is apparent that:

1. As per the dyed fabric of polyester, the degrees of shrinkage thereof in the warp sense and the weft sense are respectively about 0.1% and 1.6% after it is dry-cleaned with stoddard solvent type I.

2. As per the dyed fabric of wool/polyacrylonitrile. The degrees of shrinkage thereof in the warp sense and the weft sense are respectively about 0.5% and 0.8% after it is respectively dry-cleaned with propylene glycol methyl ether propionate and stoddard solvent type I, and the degree of shrinkage thereof in the weft sense is 7.5% after it is dry-cleaned five times with stoddard solvent type I.

3. As per the dyed fabric of cotton, the degrees of shrinkage thereof in the warp sense and the weft sense are respectively about 0.5% and 1.7% after it is dry-cleaned with propylene glycol methyl ether propionate, respectively about 1.4% and 0.8%-3.3% after it is dry-cleaned with stoddard solvent type I, and respectively about 1% and 2% after it is dry-cleaned with perchloroethylene.

4. As per the dyed fabric of polyester/cotton, the degrees of shrinkage thereof in the warp sense and the weft sense are respectively about 0.47% and 1.66% after it is dry-cleaned above five times with propylene glycol methyl ether propionate, and respectively about 0.94% and 3.3% after it is dry-cleaned more than one time with stoddard solvent type I.

5. As per the dyed fabric of polyester/rayon, the degrees of shrinkage thereof in the warp sense and the weft sense are respectively about 0.46%˜0.92% and 1.66% after it is dry-cleaned with propylene glycol methyl ether propionate, and respectively about 1.8% and 4.9% after it is dry-cleaned by stoddard solvent type I.

6. As per the dyed fabric of nylon/polyacrylonitrile, the degrees of shrinkage thereof in the warp sense and the weft sense are respectively about 2% and 9% after it is dry-cleaned with propylene glycol methyl ether propionate, respectively about 3% and 4%-5% after it is dry-cleaned with stoddard solvent type I, and respectively about 2% and 1.4% after it is dry-cleaned with stoddard solvent type II.

7. As per the dyed fabric of wool/polyester, the degrees of shrinkage thereof in the warp sense and the weft sense are both about 4.8%-8% after it is dry-cleaned one time to five times with propylene glycol methyl ether propionate, and respectively about 0.7% and 3% after it is dry-cleaned with stoddard solvent type I.

8. As per the dyed fabric of wool, the degrees of shrinkage thereof in the warp sense and the weft sense are respectively about 1%˜3% and 1.5% after it is dry-cleaned with stoddard solvent type I and are both about 2% after it is dry-cleaned with perchloroethylene.

9. As per the dyed fabric of nylon, the degree of shrinkage thereof in the warp sense is about 1.72% after it is dry cleaned more than one time with propylene glycol methyl ether propionate. Further, the degrees of shrinkage thereof in the warp sense and the weft sense are respectively about 2% and 5% after it is dry-cleaned with stoddard solvent type I, and the degree of shrinkage thereof in the warp sense is about 1% after it is dry-cleaned with perchloroethylene.

EXAMPLE 4

Testing Effects of Dry-cleaning Solvents on the Tensile Strength of Fabrics

The fabric used includes the dyed fabric and the undyed fabric and the test is carried out by means of a testmetric-universal tensile tester and the results corresponding the maximum load point of the sample are shown in Tables 17 to 30, the load weight and displacement are obtained before the sample cracks and the stress, the strain and the specific stress are calculated according to the following equations.

stress=load weight/cross section area of fabric

strain=(fabric length after elongation−fabric length before elongation)÷fabric length before elongation×100%

specific stress=load weight/mass of unit fabric length

Table 17 shows that the load weight decreases from 26 Kg to 21-22 Kg and the strain increases 1%-2% after the dyed fabric of wool/polyester is dry-cleaned one time or two times with propylene glycol methyl ether propionate. However, the strain of the dyed fabric of wool/polyester after dry-cleaned with any other dry-cleaning solvent is higher than that after dry-cleaned with propylene glycol methyl ether propionate. That is, the dyed fabric of wool/polyester may be easily deformed after it is dry-cleaned with stoddard solvent type I, stoddard solvent type II , or perchloroethylene.

Table 18 shows that the load weight increases 3-5 Kg after the dyed fabric of polyester is dry-cleaned with propylene glycol methyl ether propionate or stoddard solvent type I. Further, the displacement of that dry-cleaned with the former increase 10-15 mm, the displacement of that dry-cleaned with the latter does not increase.

Further, the strain of the dyed fabric of polyester after dry-cleaned with propylene glycol methyl ether propionate is higher (increases by about 10%) than that after dry-cleaned with any other dry-cleaning solvent.

Table 19 shows that the load weight increases about 3 kg after the dyed fabric of cotton is dry-cleaned with propylene glycol methyl ether propionate or perchloroethylene. However, the strain decreases from 3% to 10% after the dyed fabric of cotton is dry-cleaned with any one of the four dry-cleaning solvents.

Table 20 shows that the load weight decreases 6-7 Kg and the strain increases about one time after the dyed fabric of wool is dry-cleaned with propylene glycol methyl ether propionate, similar results apply after it is dry-cleaned with perchoroethylene. As shown in Table 20, stoddard solvent type I and stoddard solvent type II influence slightly the load weight of the dyed fabric of wool, but appreciably the strain of the dyed fabric of wool.

Table 21 shows that the load weight increases 6 Kg after the dyed fabric of wool/polyacrylonitrile is dry-cleaned with propylene glycol methyl ether propionate, stoddard solvent type I, or stoddard solvent type II. The strain increases 4%-5% after the dyed fabric of wool/polyacrylonitrile is dry-cleaned with stoddard solvent type I or perchloroethylene, and increases 75%-14% after it is dry-cleaned with propylene glycol methyl ether propionate or stoddard solvent type II, but the load weight and the strain of the dyed fabric wool/polyacronitrile decreases with the increase of the times of dry-cleaning.

Table 22 shows that all dry-cleaning solvents influence slightly the dyed fabric of nylon/polyacrylonitrile, but the load weight increases about 4 Kg only after it is dry-cleaned with stoddard solvent type II.

Table 23 shows that the load weight increases about 3-5 Kg after the dyed fabric of nylon is dry-cleaned with any of the four dry-cleaning solvents and the strain varies slightly. Some results show that the load weight of the dyed fabric of nylon reaches 40-60 Kg should be instrument error.

Table 24 shows that the load weight increases 3-8 Kg after the dyed fabric of polyester/rayon is dry-cleaned with propylene glycol methyl ether propionate or perchloroethylene, and stoddard solvents type I and type II are effective slightly to the load weight of the dyed fabric of polyester/rayon. Further, the strain varies slightly except the dyed fabric of polyester/rayon is dry-cleaned more than one time with the stoddard solvent type II which can make the strain thereof decrease more than 8%.

Table 25 shows that the load weight increases 3-4 Kg after the dyed fabric of polyester/cotton is dry-cleaned with any one of the four dry-cleaning solvents. Further, the strain increases 5%-7% after the dyed fabric of polyester/cotton is dry-cleaned with propylene glycol methyl ether propionate or stoddard solvent type I. However, the results obtained for the case dry-cleaned with stoddard solvent type II should be instrument error.

The test is also carried out for the undyed fabrics of gray cotton goods, gray nylon goods, gray polyester goods, gray silk goods, and gray wool goods which are dry-cleaned with the four dry-cleaning solvents, the results are shown in Tables 26-30. Table 26 shows that the load weight decreases 9-12 Kg, about 20%-25%, and the strain increases 15-2% after the undyed fabric of cotton gray foods is dry-cleaned more than one time with any one of the four dry-cleaning solvents.

In Table 27, it shows that the load weight increases 7-11 Kg after the undyed fabric of nylon gray goods is dry-cleaned with any one of the four dry cleaning solvents, but the load weight decreases 4-6 Kg after the nylon is dry-clean ed again with any one of the four dry cleaning solvents except propylene glycol methyl ether propionate. Further, the strain increases 8%-10% after the undyed fabric of nylon gray goods is dry-cleaned with any one of the four dry-cleaning solvents.

Table 28 shows that the load weight decreases 20-30 Kg, about 40%-50%, and the strain increases 8%-10% after the undyed fabric of gray polyester goods is dry-cleaned with any one of the four dry-cleaning solvents.

Table 29 shows that the load weight decreases 1-4 Kg and the strain increases 2%-5% after the undyed fabric of gray silk goods is dry-cleaned with any one of the four dry-cleaning solvents, wherein the load weight decreases about 30% after the undyed fabric of gray silk goods is dry-cleaned with perchloroethylene. Therefore, perchloroethylene has the largest influence on the load weight.

Table 30 shows that the load weights decrease about 8 Kg and 16 Kg after the undyed fabric of gray wool goods is respectively dry-cleaned more than five times with propylene glycol methyl ether propionate and perchloroethylene, Further, the strain decreases more than 3% after the undyed fabric of gray wool goods is dry-cleaned with any of the dry cleaning solvents except propylene glycol methyl ether propionate.

EXAMPLE 5

Testing the Bursting Strength and the Softness of Fabrics

Fabrics used in Example 5 include the above dyed fabrics and the undyed fabrics and the results of the test are shown in Tables 31 to 44.

Table 31 shows that the bursting strength increases above 3% after the dyed fabric of wool/polyester is dry-cleaned with any one of the dry-cleaning solvents except perchloroethylene. Further, the softness decreases above 11% after the dyed fabric of wool/polyester is dry-cleaned with stoddard solvent type I, and decreases 4%-8% after dry-cleaned with any one of the other dry-cleaning solvent.

Table 32 shows that the bursting strength decreases 2%-5% after the dyed fabric of wool is dry-cleaned with perchloroethylene, increases about 11% after the dyed fabric of wool is dry-cleaned with any one of the other dry-cleaning solvents. Further, the softness decreases 20%-30% after the dyed fabric of wool is dry-cleaned with the dry-cleaning solvents except stoddard solvent type II.

Table 33 shows that the bursting strength decreases about 1.92% after the dyed fabric of polyester is dry-cleaned with stoddard solvent type I more than one time, decreases 1.92%-3.85% after the dyed fabric of polyester is dry-cleaned with any one of the other dry-cleaning solvents. Further, the softness increases above 14% after the dyed fabric of polyester is dry-cleaned with stoddard solvent type II, but decreases about 20% after the dyed fabric of polyester is dry-cleaned with any one of the other dry-cleaning solvents.

Table 34 shows that the bursting strength increases about 4.55% after the dyed fabric of wool/polyacrylonitrile is dry-cleaned with propylene glycol methyl ether propionate. Further, after the dyed fabric of wool/polyacrylonitrile is dry-cleaned ten times with propylene glycol methyl ether propionate, the bursting strength increases about 13%, and this is similar to those after dry-cleaned with stoddard solvent type I or stoddard solvent type II. Also, the bursting strength increases 6%-11% after the dyed fabric of wool/polyacrylonitrile is dry-cleaned with perchloroethylene. Further, the softness decreases about 3.7% after the dyed fabric of wool/polyacrylonitrile is dry-cleaned one time with propylene glycol methyl ether propionate, and increases about 7.41% after the dyed fabric of wool/polyacrylonitrile is dry-cleaned more than one time with propylene glycol methyl ether propionate. Also, the softness increases about 11.11% after the dyed fabric of wool/polyacrylnitrile is dry-cleaned one time with perchloroethylene, but varies slightly after the dyed fabric of wool/polyacrylnitrile is dry-cleaned more than one time with perchloroethylene. Stoddard solvent type I has small influence on the softness of the dyed fabric of wool/polyacrylonitrile, while stoddard solvent type II can decrease the softness of that by 5%-1%.

Table 35 shows that the bursting strength increases about 7% after the dyed fabric of polyester/rayon is dry-cleaned with any one of the four dry-cleaning solvents except perchloroethylene, and decreases about 2% after the dyed fabric of polyester/rayon is dry-cleaned one time with perchloroethlene and increases about 4.81% after the dyed fabric of polyester/rayon is dry-cleaned two times with perchloroethylene. Further, the softness decreases about 12.5% after the dyed fabric of polyester/rayon is dry-cleaned with stoddard solvent type I, and decreases 1%-4% after the dyed fabric of polyester/rayon is dry-cleaned with any one of the other dry-cleaning solvents.

Table 36 shows that the bursting strength increases about 32% after the dyed fabric of nylon/polyacrylonitrile is dry-cleaned with propylene glycol methyl ether propionate, but decreases with times of dry-cleaning. Also, the bursting strength increases about 10% after the dyed fabric of nylon/polyacrylonitrile is dry-cleaned with any one of the other dry-cleaning solvents. Further, the softness decreases about 5% or increases about 15% or 10% after the dyed fabric of nylon/polyacrylonitrile is dry-cleaned one time with stoddard solvent type I, stoddard solvent type II, or perchloroethylene, and varies slightly with the increase of times of dry-cleaning.

Table 37 shows that the bursting strength decreases about 14.57% after the dyed fabric of cotton is dry-cleaned one time and two times with propylene glycol methyl ether propionate, and this is similar to those after the dyed fabric of cotton is dry-cleaned two times with stoddard solvent type I or five times with perchloroethylene. Also, the bursting strength decreases 5-10% after the dyed fabric of cotton is dry-cleaned with stoddard solvent type II. Further, the softness increases above 50% after the dyed fabric of cotton is dry-cleaned with any dry-cleaning solvent, and in particular with stoddard solvent type II.

Table 38 shows that the bursting strength decreases about 4% after the dyed fabric of polyester/cotton is dry-cleaned with propylene glycol methyl ether propionate, stoddard solvent type I or type II, and the result applies to the one after the dyed fabric of polyester/cotton is dry-cleaned five times with perchloroethylene. Further, the softness increases above 30% after the dyed fabric of polyester/cotton is dry-cleaned with stoddard solvent type II, and increases or decreases below 10% after the dyed fabric of polyester/cotton is dry-cleaned with any one of the other dry-cleaning solvents.

Table 39 shows that the bursting strength decreases 8%-11%, 5%, 5%, 3% after the dyed fabric of nylon is respectively dry-cleaned with propylene glycol methyl ether propionate, stoddard solvent type I, stoddard solvent type II, and perchloroethylene. Further, the softness varies smallest after the dyed fabric of nylon is dry-cleaned with propylene glycol methyl ether propionate. Stoddard solvent type I or stoddard solvent type II can increase the softness of the fabric by 20%, and perchloroethylene can decrease it by 16%-34%.

Table 40 shows that the bursting strength varies smallest after the undyed fabric of gray polyester goods is dry-cleaned with perchloroethylene as compared to the other dry-cleaning solvent. Further, the softness decreases above 10% after the undyed fabric of gray polyester goods is dry-cleaned with any one of the four dry-cleaning solvents more than one time.

Table 41 shows that the bursting strength decreases about 6% after the undyed fabric of gray nylon goods is dry-cleaned with propylene glycol methyl ether propionate, stoddard solvent type I, or stoddard solvent type II, and decreases about 4.8% after the undyed fabric of gray nylon goods is dry-cleaned more than one time with perchloroethylene. Further, the softness decreases above 30% after the undyed fabric of gray nylon goods is dry-cleaned with propylene glycol methyl ether propionate, and decreases 25% after dry-cleaned with stoddard solvent type I, and decreases above 20% after dry-cleaned more than one time with stoddard solvent type II or perchloroethylene.

Table 42 shows that the bursting strength decreases about 7%, 5.5%, and 3.7% after the undyed fabric of gray cotton goods is dry-cleaned one time, two times, and five times respectively with propylene glycol methyl ether propionate, and decreases 5%-7% after dry-cleaned with any one of the other dry-cleaning solvents. Further, the softness increases about 22% after the undyed fabric of gray cotton goods is dry-cleaned with stoddard solvent type I, and decreases after dry-cleaned with any one of the other dry-cleaning solvents.

Table 43 shows that the bursting strength decreases about 20% after the undyed fabric of gray silk goods is dry-cleaned with any one of the four dry-cleaning solvents. Further, the softness decreases 10%-20% after the undyed fabric of gray silk goods is dry-cleaned with any one of the four dry-cleaning solvents.

Table 44 shows that the bursting strength decreases about 3% after the undyed fabric of gray wool goods is dry-cleaned with any one of the four dry-cleaning solvents. Further, the softness increases and decreases about 7% after the undyed fabric of gray wool goods is dry-cleaned with propylene glycol methyl ether propionate and stoddard solvent type II respectively and decreases about 2.6% after dry-cleaned with stoddard solvent type I, and increases 2.6%-5% after dry-cleaned with perchloroethylene.

EXAMPLE 6

Testing the Color Fastness to Light of Fabrics

The fabric used in Example 6 include the above 9 dyed fabrics and the tests of color fastness of fabrics are carried out after the fabric are respectively dry-cleaned with the above four dry-cleaning solvents, wherein the tests of color fastness include a test of color fastness to light (Example 6), a test of color fastness to dry-cleaning (Example 7) and a test of color fastness to abrasion (Example 8).

In Example 6, the fabric are placed in a light fastness tester after dry-cleaned under the Xenon arc-light for 260 hours, the color changes are compared with a blue wool light fastness and the results are shown in Table 45. As per the grade in connection with the color fastness to light, sixth grade is superior to fifth grade, etc.

The test of color fastness to light is conducted according to CNS (Chinese National Standard)-8429 testing color fastness and CNS (Chinese National Standard)-3846 testing color fastness to Xenon arc-light. The standard blue fabric is produced by means of scouring and bleaching the pousseline fabric which is weaved of worsted yarn(wool), the thread counts thereof are respectively 114±2 and 96±2 ropes/5 cm in warp sense and weft sense, and then being dyed by the dyes in Table 46 according to CNS (Chinese National Standard)-1493 testing color fastness to light.

In Table 46 the color fastness to light of the first grade standard color blue fabric is the lowest. That is, the color fastness to light of the eighth grade standard color blue fabric is the highest.

Table 45 shows that the color fastness to light of the dyed fabrics after dry-cleaned degrades to a certain extent according to the dry-cleaning solvent used and the times of dry-cleaning. For example, the color fastness to light degrades to fourth grade after the dyed fabric of nylon is dry-cleaned with stoddard solvent type II, and degrades to fourth to fifth grade after dry-cleaned one time or two times with perchloroethylene and to fourth grade after dry-cleaned five times with perchloroethylene. The color fastness to light degrades from 3rd-4th grade to third grade after the dyed fabric of polyester is dry-cleaned with propylene glycol methyl ether propionate or perchloroethylene. The color fastness to light degrades from to 4th-5th grade to fourth grade after the dyed fabric of cotton is dry-cleaned with any one of the four dry-cleaning solvents except propylene glycol methyl ether propionate. The color fastness to light degrades from 4th-5th grade to third grade after the dyed fabric of polyester/cotton is dry-cleaned with stoddard solvent type I or perchloroethylene. Further, stoddard solvents type I and type II are most effective to the color fastness to light of the dyed fabrics of wool, wool/polyacrylonitrile and wool/polyester. According to above descriptions, when propylene glycol methyl ether propionate is used as a dry-cleaning solvent, it has no influence on the color fastness to light of the dyed fabrics of nylon, polyester/rayon, cotton, wool, wool/polyacrylonitrile and wool/polyester.

Meanwhile, the color fastness to light of the dyed fabrics of polyester, polyester/cotton, and nylon/polyacrylonitrile degrades when they are dry cleaned with propylene glycol methyl ether propionate more than 20 times.

EXAMPLE 7

Testing the Color Fastness to Dry-cleaning of Fabrics

The test of the color fastness to dry-cleaning of the fabric is preformed after the fabric is dry-cleaned with the four dry-cleaning solvents to measure its reflectance by a spectrophotometer.

Since different light waves of different color will have their maximum absorbion at different range of wavelength, therefore invisible lights with wavelength of 400-700 nm can provide different levels of reflection so as to define a functional curve of reflectance versus wavelength. Nevertheless, the reflectance is inversely proportional to the concentration of a dye dyed on the fabric. An empirical equation is shown as:

K/S =(1 −R ) 2 /2 R

wherein K is absorption coefficient, S is extinction coefficient, and R is reflectance at the maximum absorbing wavelength.

According to above description, the K/S value is proportional to the concentration of dye on the fabric. Further, according to the opponent-color coordinate recommended by the CIE Society in 1976, wherein a redness-greenness coordinate forms the “a” coordinate where redness denotes a positive value and greenness denotes a negative value together with a yellowness-blueness coordinate forms the “b” coordinate where yellowness indicates a positive value and blueness indicates a negative value; the two sets of coordinates forming a two dimensional coordinate, together with a third coordinate which indicates the bright form a CIE Lab the opponent-color coordinate, a value “L” of bright in the third coordinate, a value “a” of chroma in the redness-greenness coordinate and a value “b” of chroma in the yellowness-blueness coordinate are related to tristimulus values as the following:

L =116×( Y/Yn ) ⅓ −16

a =500×[( X/Xn ) ⅓ −( Y/Yn ) ⅓ ]

b =500×[( Y/Yn ) ⅓ −( Z/Zn ) ⅓ ]

h=tan −1 ( b/a )

c =( a 2 +b 2 ){fraction ( 1 / 2 )}

where the definitions of the Xn Yn, Xn are the same as before.

The color difference is analyzed according to Munsell Color Solid Theory which shows that the hue difference and the chroma difference can be obtained by means of a solid rectangular coordinate, and the graphic demonstration of the differences is shown in FIG. 1 .

In Table 47, it is apparent that the K/S value increases 2 to 4 after the dyed fabric of wool is dry-cleaned with propylene glycol mono methyl ether propionate, but decreases 3 after the dyed fabric of wool is dry-cleaned above five times with propylene glycol methyl ether propionate. The K/S value increases about 2 after the dyed fabric of wool is dry-cleaned with perchloroethylene, and varies slightly after the dyed fabric of wool is dry-cleaned with stoddard solvent type I or stoddard solvent type II. Further, as shown in Table 48, perchloroethylene has largest influence on the bright difference (ΔL) of the dyed fabric of wool, and makes the bright difference of the dyed fabric of wool decrease about 1.5%. The influence of propylene glycol methyl ether propionate is next to that of perchloroethylene.

Tables 49 and 50 show that the K/S value decreases 2 to 3 after the dyed fabric of polyester/rayon is dry-cleaned more than five times with propylene glycol mono methyl ether propionate or one time with stoddard solvent type I. Further, the bright decreases 0.3 to 0.5 after the dyed fabric of polyester/rayon is dry-cleaned with stoddard solvent type II or perchloroethylene, but increases 1 after dry-cleaned one time with propylene glycol mono methyl ether propionate or more than one time with stoddard solvent type I.

Tables 51 and 52 show that the K/S value and the grade of color change respectively decreases about 0.3 and to second to third grade or below after the dyed fabric of nylon is dry-cleaned with stoddard solvent type II, but the grade of color change and pollution respectively decreases to below second grade and between third and fourth grade after dry-cleaned with perchloroethylene. Further, the bright decreases about 2 after the dyed fabric of nylon is dry-cleaned with stoddard solvent type II or perchloroethylene.

Tables 53 and 54 show that the K/S value increase 0.1, the grade of color change decreases to first to second grade and the grade of pollution is between third and fourth grade after the dyed fabric of polyester/cotton is dry-cleaned with stoddard solvent type II or perchloroethylene. Further, stoddard solvent type II and prechloroethylene also make the bright of the dyed fabric of polyester/cotton decrease about 7 to 8.

Tables 55 and 56 show that the K/S value decreases about 1 and the grade of color change is fourth grade after the dyed fabric of cotton is dry-cleaned with stoddard solvent type II, but the grade of color change is third to fourth grade after the dyed fabric of cotton is dry-cleaned more than one time with perchloroethylene. Further, stoddard solvent type II and perchloroethylene have influence on the bright of the dyed fabric of cotton and make it decrease about 0.6 and 0.7 to 1, respectively.

Tables 57 and 58 show that the K/S value decreases 1 to 2 after the dyed fabric of wool/polyacrylonitrile is dry-cleaned with propylene glycol methyl ether propionate, stoddard solvent type I, or stoddard solvent type II, and the grade of color change decreases to third to fourth grade after the dyed fabric of wool/ polyacrylonitrile is dry-cleaned with stoddard solvent type II. Further, perchloroethylene is least effective to the bright of the dyed fabric of wool/polyacrylonitrile. The bright increase 0.3 to 0.6 after the dyed fabric is dry cleand with propylene glycol methyl ether propionate.

Tables 59 and 60 show that the K/S value decreases about 1 and the grade of color change is fourth grade after the dyed fabric of wool/polyester is dry-cleaned with stoddard solvent type II, and the grade of color change decreases to third to fourth grade after the dyed fabric of wool/polyester is dry-cleaned with perchloroethylene. Further, the bright decreases slightly after the dyed fabric of wool/polyester is dry-cleaned below five times with propylene glycol methyl ether propionate, but increases after the dyed fabric of wool/polyester is dry-cleaned more than five times with propylene glycol methyl ether propionate.

Tables 61 and 62 show that the K/S value decreases 50% and the brightness index increases 1 to 2 after the dyed fabric of polyester is dry-cleaned with any one of perchloroethylene, stoddard solvent type II and propylene glycol methyl ether propionate, but perchloroethylene is less effective to the dyed fabric of polyester than the other three dry-cleaning solvents.

Tables 63 and 64 show that the K/S value increases about 2 after the dyed fabric of nylon/polyacrylonitrile is dry-cleaned with stoddard solvent type I or stoddard solvent type II, and increases about 5 after the dyed fabric of nylon/polyacrylonitrile is dry-cleaned with perchloroethylene. Further, the bright decreases about 1 and above 1.5 after the dyed fabric of nylon/polyacrylonitrile is respectively dry-cleaned with stoddard solvent type I or stoddard solvent type II and perchloroethylene.

EXAMPLE 8

Testing the Color Fastness to Abrasion of Fabrics

Fabrics used in Example 8 are dyed fabrics and the results of the test of the color fastness to abrasion of the fabrics are shown in Tables 65 to 73.

As shown in Tables 65 to 73, the color fastness to abrasion of the dyed fabric of wool/polyester increases from the 4th grade to 4th-5th grade after dry-cleaned with propylene glycol methyl ether propionate or stoddard solvent type I, but remains the same after dry-cleaned with stoddard solvent type II or perchloroethylene. The color fastness to abrasion of the dyed fabric of wool decreases from 4th grade to 3rd-4th grade after dry-cleaned two times with stoddard solvent type II. Further, the color fastness to abrasion of any of the other seven dyed fabrics after dry-cleaned is similar to that before dry-cleaned.

EXAMPLE 9

Testing the Whiteness Index and Yellowness Index of the Undyed Fabrics

The reflectance of an undyed fabric is measured by a spectrophotometer by means of an ICS-GAIN colormatching system according to ASTM (American Society and Testing Maerial) E-313-73 and ASTM D-1925-70. The measured reflectance is converted into tristimulus values (X, Y, Z) by means of the colormatching system and then the tristimulus values are put into the following equations to calculate a whiteness index (WI) and a yellowness index (YI).

WI(ASTM)=3.338Z−3Y

YI(ASTM)=100×(1.28X−1.06Z)/Y

Tables 74 and 75 show that the yellowness index decreases about 2 and the whiteness index decreases about 20 after the gray nylon goods is dry-cleaned with perchloroethylene, while the yellowness index decreases about 3 and the whiteness index decreases about 20 after the gray nylon goods is dry-cleaned with any one of the other three dry-cleaning solvents. Further, the bright decreases 7 to 8 after the gray nylon goods is dry-cleaned with any one of the four dry-cleaning solvents.

Tables 76 and 77 show that the bright increases about 1.8 after the gray silk goods is dry-cleaned with propylene glycol methyl ether propionate, and increases about 1 after the gray silk goods is dry-cleaned with any one of the other three dry-cleaning solvents. Further, the yellowness index decreases about 4 and the whiteness index increases about 11 after the gray silk goods is dry-cleaned with propylene glycol methyl ether propionate which has stronger effect than other dry cleaning solvents.

Tables 78 and 79 show that all the dry-cleaning solvents have small effect on the bright of the gray cotton goods, but make the yellowness index of the gray cotton goods increase about 0.5 after dry-cleaned. Further, the whiteness index of the gray cotton goods decreases about I after dry-cleaned with stoddard solvent type I only.

Tables 80 and 81 show that all the dry-cleaning solvents have small effect on the bright of the gray wool goods. Further, the yellowness index of the gray wool goods increases about 1 and the whiteness index thereof decreases about 3 to 5 after dry-cleaned with any one of the four dry-cleaning solvents except propylene glycol methyl ether propionate.

Tables 82 and 83 show that the yellowness index decreases about 2 after the gray polyester goods is dry-cleaned with propylene glycol methyl ether propionate, and decreases 3 to 4 after the gray polyester goods is dry-cleaned with perchloroethylene. Further, the whiteness index decreases about 20 and the bright decreases more than 4 after the gray polyester goods is dry-cleaned with any one of the four dry-cleaning solvents except stoddard solvent type II.

According to the descriptions in Examples 1 to 9, propylene glycol methyl ether propionate has smaller influence on fabrics than conventional dry cleaning solvents such as stoddard solvent type I, stoddard solvent type II and perchloroethylene do, and has good dry-cleaning effect and does not change physical property of fabrics (e.g., surface structure of the fabric) significantly so that propylene glycol methyl ether propionate is an environmentally friendly dry cleaning solvent and can completely replace the conventional dry-cleaning solvents, perchloroethylene, stoddard solvent type I and stoddard solvent type II.

The present invention further discloses the dry-cleaning solvent compositions formed by mixing various amounts of propylene glycol methyl ether acetate or propylene glycol methyl ether propionate with various amounts of perchloroethylene, stoddard solvent type I, stoddard solvent type II (hereinafter called “dry-cleaning oil”), or the mixture thereof and compare the influence on the color fastness of the fabric of each composition as shown in Examples 10 to 12.

The dry-cleaning solvent compositions used in Examples 10 to 12 are as follows.

dry-cleaning solvent composition A: comprising 100% propylene glycol mono methyl ether acetate;

dry-cleaning solvent composition B: comprising 70 wt % propylene glycol monomethyl ether acetate and 30 wt % dry-cleaning oil;

dry-cleaning solvent composition C: comprising 30 wt % propylene glycol monomethyl ether acetate and 70 wt % dry-cleaning oil;

dry-cleaning solvent composition D: comprising 70 wt % propylene glycol monomethyl ether propionate and 30 wt % dry-cleaning oil; and

dry-cleaning solvent composition E: comprising 30 wt % propylene glycol monomethyl ether propionate and 70 wt % dry-cleaning oil.

The cloth samples used in Examples 10 to 12 are selected in a random way from the market, which are eight different kinds of cloth, the ingredients thereof are respectively 100% wool, 100% cotton, 100% polyester, 100% nylon, polyester/rayon, polyester/cotton, polyester/wool and ultra-thin denier of polyester.

Examples 10 to 12 are conducted under the conditions according to CNS-8429 test rules of color fastness and CNS-8431 test rules of color fastness to organic solvent. All samples of dyed fabrics are respectively dry-cleaned with the dry-cleaning solvent compositions A to E under the following process conditions: liquid ratio is 1:40 and temperature is 25±2° C. Then, the sample is put into a flask. After shaking it for about 30 minutes, the sample is dried under a temperature of 60±2° C. for 1 hour.

Each sample is respectively processed with the dry-cleaning solvent compositions A to E according to the above process conditions and the process repeats one time, two times and five times. Then, the sample is respectively tested for the physical properties and color fastness. The tests of color fastness include a test of color fastness to an organic solvent, to abrasion, and to dry-hot, as shown in Examples 10 to 12. The color change of the processed sample is also analyzed by colormatching system, the color fastness is tested too.

With reference to the following Examples 10 to 12, they further describe features of the present invention and they are by no means of any limitation therefor. The test of color fastness and the symbol used are the same as what Examples 7 describes.

EXAMPLE 10

Testing the Color Fastness to Dry-cleaning of Fabrics

Tables 84 and 85 show that the dry-cleaning solvent compositions A to E influence slightly the K/S value of the dyed fabric of wool, but the K/S value of the dyed fabric of wool has an increasing trend after the dyed fabric of wool is dry-cleaned with dry-cleaning solvent composition A and a decreasing trend after the dyed fabric of wool is dry-cleaned with dry-cleaning solvent composition B or C, and decreases first and then increases after the dyed fabric of wool is dry-cleaned with dry-cleaning solvent composition D.

Further, the bright difference (ΔL) of the dyed fabric of wool is between −0.8 and 0.3 after the dyed fabric of wool is dry-cleaned with any one of dry-cleaning solvent compositions A to E.

Tables 86 and 87 show that the dry-cleaning solvent compositions A to E have small influence on the K/S value of the dyed fabric of polyester/rayon, while the K/S value has an increasing tend after it is dry-cleaned with any one of dry-cleaning solvent compositions A to E. Further, the bright difference (ΔL) of the dyed fabric of polyester/rayon is between 4.5 and 0.5 after it is dry-cleaned with any one of dry-cleaning solvent compositions A to E.

Tables 88 and 89 show that the K/S value of the dyed fabric of polyester increases first and then decreases after it is dry-cleaned with dry-cleaning solvent composition A or E, but decreases first and then increases after it is dry-cleaned with dry-cleaning solvent composition B, D, or C. Further, the bright difference (ΔL) of the dyed fabric of polyester is about 1.19 after it is dry-cleaned one time or two times with dry-cleaning solvent composition B, about 0.19 after it is dry-cleaned five times with dry-cleaning solvent composition B, and between about −0.5 and 0.5 after it is dry-cleaned with dry-cleaning solvent composition A, C, D, or E.

EXAMPLE 11

Testing the Color Fastness to Abrasion of Fabrics

The results of Example 11 are shown in Tables 90 to 95. As shown in Tables 90 to 95, the color fastness to abrasion of the dyed fabric of wool decreases obviously after it is dry-cleaned five times with dry-cleaning solvent composition A, and the color fastness to abrasion of the dyed fabric of polyester/rayon decreases obviously after it is dry-cleaned five times with dry-cleaning solvent composition B or after it is dry-cleaned two times with dry-cleaning solvent composition C or D. The grade of color change of the rest test is between the fourth to the fifth grade.

EXAMPLE 12

Testing the Color Fastness to Dry-hot of Fabrics

The results of Example 12 are shown in Table 96 to 101. As shown in tables 96 to 101, the color fastness to dry-hot of the dyed fabric of wool decreases obviously after it is dry-cleaned one time with dry-cleaning solvent composition A or after it is dry-cleaned five times with dry-cleaning solvent composition E. The color fastness to dry-hot of the dyed fabric of polyester/rayon decreases obviously after it is dry-cleaned five times with dry-cleaning solvent composition D. The color fastness to dry-hot of the dyed fabric of polyester decreases after it is dry-cleaned five times with dry-cleaning solvent composition B, one time with dry-cleaning solvent composition C, or one time or two times with dry-cleaning solvent composition D. The grade of color change of the rest test is between the fourth to fifth grade.

According to the Examples 10 to 12, dry-cleaning solvent compositions A to E are superior to the conventional dry-cleaning solvents in terms of the influence on the physical property, color fastness of the fabric, wherein dry-cleaning solvent composition A is better than dry-cleaning solvent compositions B to E since it will not change the physical property or color of the fabric appreciably.

However, propylene glycol methyl ether formate, propylene glycol methyl ether acetate, propylene glycol methyl ether propionate, propylene glycol methyl ether butyrate, propylene glycol ethyl ether formate, propylene glycol ethyl ether acetate, propylene glycol ethyl ether propionate, propylene glycol ethyl ether butyrate, ethylene glycol methyl ether formate, ethylene glycol methyl ether acetate, ethylene glycol methyl ether propionate, and ethylene glycol methyl ether butyrate are more expensive than conventional dry-cleaning solvents, but propylene glycol methyl ether formate, propylene glycol methyl ether acetate, propylene glycol methyl ether propionate, propylene glycol methyl ether butyrate, propylene glycol ethyl ether formate, propylene glycol ethyl ether acetate, propylene glycol ethyl ether propionate, propylene glycol ethyl ether butyrate, ethylene glycol methyl ether formate, ethylene glycol methyl ether acetate, ethylene glycol methyl ether propionate, and ethylene glycol methyl ether butyrate have more excellent degree of cleaning fabrics than conventional dry-cleaning solvents do. Therefore, the present invention provides a dry-cleaning solvent composition comprising a compound or solvent selected from the group consisting of propylene glycol methyl ether formate, propylene glycol methyl ether acetate, propylene glycol methyl ether propionate, propylene glycol methyl ether butyrate, propylene glycol ethyl ether formate, propylene glycol ethyl ether acetate, propylene glycol ethyl ether propionate, propylene glycol ethyl ether butyrate, ethylene glycol methyl ether formate, ethylene glycol methyl ether acetate ethylene glycol methyl ether propionate. ethylene glycol methyl ether butyrate, and the mixture thereof. Below 70 wt % of the dry cleaning solvent composition may be perchloroethylene, stoddard solvent type I, stoddard solvent type II or the mixture thereof for reducing the cost thereof.

Although preferred embodiments have been described to illustrate the present invention, it is apparent that changes and modifications in the described embodiments can be carried out without departing from the scope of the invention intended to be limited only by the appended claims.

TABLE 1
the differences in property between propylene glycol methyl ether propionate and conventional dry cleaning solvents
	Dry cleaning solvent
	Propylene glycol methyl			Stoddard solvent type
Item	ether propionate	Perchloroethylene	Stoddard solvent type I	II
Appearance and smell	Transparent liquid, no	Transparent liquid,	Transparent liquid, no	Transparent liquid, no
	suspensions and water	ether-like smell	suspensions and water,	suspensions and water,
			gasoline-like smell	gasoline-like smell
Component			Iso-paraffin 24.8% N-paraffin 26.5% Olefin 0.8% Naphthene 13.8% Total Aromatics 21.3% (C 8 1.1%, C 9 12.6%, C 10 5%, C 11 2.5%) Others 12.9%	Iso-paraffin 24.8% N-paraffin 26.5% Olefin 0.8% Naphthene 13.8% Total Aromatics 21.3% (C 8 1.1%, C 9 12.6%,
# C 10 5%, C 11 2.5%) Others 12.9%
Molecular weight	146	166	—	—
Specific gravity	0.95	1.625	0.745-0.825	0.748-0.82
Boiling point	160° C.	121° C.	149-208° C.	177-213° C.
Freezing point	<−50° C.	−22.4° C.	—	—
Flash point	56° C.	—	38° C.	60° C.
Ignition point	360° C.	Inflammable	230-260° C.	—
Viscosity (at 25° C.)	1.2	—	0.84 CP (centi poise)	—
Vaporizing rate	19	—	70	—
(NBAC = 100)
Vapor pressure	0.9 mm-Hg	—	2 mm-Hg	—
Solubility	—	Insoluble in water,	Insoluble in water,	Insoluble in water,
		soluble in ethyl	soluble in non-polar	soluble in non-polar
		alcohol, ethyl ether,	solvents, such as	solvents, such as
		oils	gasoline, ethyl ether, oils,	gasoline, ethyl ether,
			benzene, chloroform, carbon	oils,
			tetrachloride, carbon	benzene, chloroform,
			disulfide, etc.	carbon tetrachloride,
				carbon disulfide, etc.
Dangerousness	—	Stimulativeness to	Extremely dangerous in	Extremely dangerous in
		eyes and skin,	storage. React with the	storage. React with the
		medium toxicity	following compounds to	following compounds to
			produce dangerous reaction:	produce dangerous
			1. chlorine gas	reaction:
			2. nitric acid	1. chlorine gas
			3. strong oxidizing agent	2. nitric acid
			4. sulfuric acid	3. strong oxidizing agent
				4. sulfuric acid

TABLE 2
the surface of the dyed fabric are observed by means of a scanning electron microscope
(SEM) after the dyed fabric is dry cleaned with dry cleaning solvents
	Dry cleaning solvent
			Propylene glycol
	Stoddard solvent	Stoddard solvent	methyl ether
Dyed fabric	type I	type 11	propionate	Perchloroethylene
Nylon	cracked and flayed	cracked and flayed	small influence	flayed
Nylon/polyacrylonitrile	extremely cracked and	extremely cracked and	slightly cracked and flayed	small influence
	flayed	flayed
Polyester/rayon	extremely cracked and	extremely cracked and	small influence	cracked and flayed
	flayed	flayed
Polyester	cracked and flayed	extremely cracked and	slight corrosion	oligomers are
		flayed		precipitated on the
				surface thereof
Cotton	small influence	small influence	small influence	small influence
Polyester/cotton	small influence	small influence	small influence	small influence
Wool	structure of cuticle is	structure of cuticle is	structure of cuticle is	structure of cuticle is
	destroyed	destroyed	destroyed	destroyed
Wool/polyacrylonitrile	structure of cuticle is	structure of cuticle is	structure of cuticle is	structure of cuticle is
	destroyed	destroyed	destroyed	destroyed
Wool/polyester	extremely cracked and	structure of cuticle is	structure of cuticle is	structure of cuticle is
	flayed	destroyed	destroyed	destroyed

TABLE 3
the difference of Lab values of the soil test cloth of polyester/cotton
after the soil test cloth of polyester/cotton is dry cleaned one time,
two or five times with a dry cleaning solvent
dry cleaning	item
solvent	ΔL	Δa	Δb	Δc	Δh	ΔE
propylene glycol	one time	4.04	−0.16	−0.47	−0.42	0.28	4.07
methyl ether	two times	3.48	−0.5	−0.95	−0.48	0.96	3.64
propionate	five times	4.53	−0.06	−0.55	−0.52	0.17	4.57
stoddard solvent	one time	3.77	−0.04	−0.41	−0.39	0.12	3.79
type I	two times	4.16	−0.08	−0.41	−0.39	0.16	4.18
	five times	1.05	0	−0.32	−0.32	0.05	1.1
perchloroethylene	one time	3.26	−0.04	−0.41	−0.4	0.11	3.29
	two times	3.94	−0.07	−0.43	−0.41	0.15	3.96
	five times	2.8	−0.06	−0.4	−0.39	0.13	2.83
stoddard solvent	one time	3.55	−0.06	−0.28	−0.26	0.1	3.57
type II	two times	4.27	−0.09	−0.46	−0.43	0.19	4.29
	five times	3.41	−0.15	−0.69	−0.61	0.35	3.48

TABLE 4
the difference of Lab values of the soil test cloth of wool after the soil
test cloth of wool is dry cleaned one time, two or five times with a dry
cleaning solvent
dry cleaning	item
solvent	ΔL	Δa	Δb	Δc	Δh	ΔE
propylene glycol	one time	−2.42	−0.04	−0.67	−0.66	0.15	2.51
methyl ether	two times	0.12	−0.1	−0.5	−0.48	0.18	0.52
propionate	five times	−0.71	−0.07	−0.88	−0.85	0.22	1.13
stoddard solvent	one time	−1.53	−0.08	−0.82	−0.8	0.22	1.74
type I	two times	−0.45	−0.12	−0.66	−0.63	0.23	0.81
	five times	−1.02	−0.12	−0.7	−0.67	0.24	1.24
perchloroethylene	one time	−2.1	−0.04	−0.03	−0.03	0.05	2.1
	two times	−1.91	−0.09	−0.83	−0.8	0.23	2.09
	five times	−1.66	−0.1	−0.93	−0.9	0.27	1.9
stoddard solvent	one time	−2.43	−0.06	−0.78	−0.76	0.19	2.55
type II	two times	−1.39	−0.07	−0.77	−0.74	0.2	1.59
	five times	−2.42	−0.26	−1.21	−1.13	0.5	2.73

TABLE 5
the difference of Lab values of the soil test cloth of polyester after the
soil test cloth of polyester is dry cleaned one time, two or five times
with a dry cleaning solvent
dry cleaning	item
solvent	ΔL	Δa	Δb	Δc	Δh	ΔE
propylene glycol	one time	4.75	−0.2	0.12	−0.1	−0.21	4.76
methyl ether	two times	6.85	−0.33	−0.37	0.39	−0.3	0.87
propionate	five times	7.07	−0.1	−0.26	0.27	−0.17	7.08
stoddard solvent	one time	6.29	−0.21	−0.22	0.23	−0.19	6.3
type I	two times	7.03	−0.17	−0.26	0.27	−0.16	7.04
	five times	5.28	−0.11	0.04	−0.03	−0.11	5.28
perchloroethylene	one time	6.68	−0.19	0.07	−0.06	−0.19	6.68
	two times	7.6	−0.17	−0.2	0.21	−0.16	7.61
	five times	5.26	−0.14	−0.14	0.15	−0.13	5.67
stoddard solvent	one time	6.59	−0.18	−0.14	0.15	−0.17	6.59
type II	two times	5.67	−0.22	−0.24	0.25	−0.2	5.68
	five times	5.19	−0.17	−0.29	0.03	−0.15	5.2

TABLE 6
the difference of Lab values of the soil test cloth of cotton after the soil
test cloth of cotton is dry cleaned one time, two or five times with a dry
cleaning solvent
dry cleaning	item
solvent	ΔL	Δa	Δb	Δc	Δh	ΔE
propylene glycol	one time	3.85	−0.1	−0.62	−0.58	0.25	3.9
methyl ether	two times	4.64	−0.22	−0.81	−0.69	0.48	4.72
propionate	five times	4.38	−0.02	−0.78	−0.76	0.19	4.45
stoddard solvent	one time	4.62	−0.07	−0.46	−0.44	0.17	4.64
type I	two times	3.99	−0.01	−0.44	−0.43	0.09	4.02
	five times	4.84	−0.08	−0.46	−0.44	0.17	4.86
perchloroethylene	one time	4.22	−0.02	−0.61	−0.6	0.14	4.27
	two times	4.04	−0.04	−0.64	−0.62	0.18	4.09
	five times	2.8	−0.02	−0.68	−0.66	0.16	2.88
stoddard solvent	one time	3.82	−0.08	−0.19	−0.17	0.12	3.83
type II	two times	4.49	−0.1	−0.63	−0.59	0.26	4.53
	five times	3.83	−0.13	−0.41	−0.37	0.22	3.86

TABLE 7
the whiteness index and the yellowness index of a soil test cloth before the soil test cloth is dry cleaned
and after the soil test cloth is dry cleaned one time, two and five times with a dry cleaning solvent
	the soil test cloth of
	Polyester	cotton	polyester/cotton	wool
	white-	yellow-	white-	yellow-	white-	yellow-	white-	yellow-
dry cleaning	ness	ness	ness	ness	ness	ness	ness	ness
solvent	index	Index	index	index	Index	index	index	index
before dry cleaned	45.11	−10.35	39.47	3.85	37.82	3.41	22.57	11.22
propylene glycol	one time	52.63	−9.73	47.44	2.2	45.3	2.02	22.07	9.8
methyl ether	two times	58.12	−10.93	49.44	1.64	46.27	0.53	24.12	9.88
propionate	five times	58.12	−10.45	48.85	1.93	46.3	1.97	24.33	9.09
stoddard solvent	one time	56.49	−10.45	48.04	2.59	44.61	2.32	23.35	9.29
type I	two times	57.98	−10.42	46.96	2.71	45.22	2.27	23.99	9.53
	five times	53.68	−9.72	48.39	2.57	42.04	3.07	23.54	9.48
perchloroethylene	one time	56.16	−9.61	47.96	2.31	43.87	2.32	20.62	11.37
	two times	58.86	−10.22	47.78	2.23	44.96	2.23	22.99	9.3
	five times	55.02	−10.21	45.97	2.18	43.16	2.33	23.54	9
stoddard solvent	one time	56.75	−10.18	45.76	3.2	43.82	2.61	22.35	9.52
type II	two times	55.43	−10.57	48.48	2.17	45.58	2.13	23.33	9.42
	five times	54.68	−10.69	46.59	2.67	45.12	1.54	23.58	8.18

TABLE 8
the degree of shrinkage of the dyed fabric of wool/polyester after dry-cleaned one time,
two and five times with a dry-cleaning solvent
	the degree of shrinkage
	warp sense	weft sense
	fabric scale	fabric scale		fabric scale	fabric scale
	before dry-	after dry-	the degree of	before dry-	after dry-	the degree of
wool/polyester	cleaned	cleaned	shrinkage	cleaned	cleaned	shrinkage
propylene glycol	one time	21.5	21.5	0%	6.2	5.9	4.83%
methyl ether	two times	21.5	21.5	0%	6.2	5.9	4.83%
propionate	five times	21.5	21.4	0.46%	6.2	5.7	8.06%
stoddard solvent	one time	21.2	21.05	0.7%	6.7	6.65	0.74%
type I	two times	21.15	21	0.709%	6	5.8	3.33%
	five times	20.5	20.3	0.97%	5.9	5.7	3.38%
stoddard solvent	one time	4.9	4.9	0%	4.8	4.8	0%
type II	two times	4.85	4.85	0%	4.9	4.9	0%
	five times	4.9	4.9	0%	4.8	4.8	0%
perchloroethylene	one time	4.9	4.9	0%	4.9	4.9	0%
	two times	4.9	4.85	1.02%	5	5	0%
	five times	4.8	4.8	0%	4.8	4.8	0%

TABLE 9
the degree of shrinkage of the dyed fabric of wool after dry-cleaned one time,
two and five times with a dry-cleaning solvent
	the degree of shrinkage
	warp sense	weft sense
	fabric scale	fabric scale		fabric scale	fabric scale
	before dry-	after dry-	the degree of	before dry-	after dry-	the degree of
wool	cleaned	cleaned	shrinkage	cleaned	cleaned	shrinkage
propylene glycol	one time	12.9	12.9	0%	10.4	10.4	0%
methyl ether	two times	12.9	12.9	0%	10.4	10.4	0%
propionate	five times	12.9	12.9	0%	10.4	10.4	0%
stoddard solvent	one time	15.41	15.15	1.68%	6.29	6.2	1.42%
type I	two times	15.3	14.95	2.28%	5.9	5.8	1.69%
	five times	15.15	14.55	3.69%	6.1	5.75	5.73%
stoddard solvent	one time	4.9	4.9	0%	4.7	4.7	0%
type II	two times	4.9	4.9	0%	4.85	4.85	0%
	five times	4.8	4.8	0%	4.9	4.9	0%
perchloroethylene	one time	5	5	0%	5	4.95	1%
	two times	5	4.9	2%	4.9	4.8	2.04%
	five times	4.9	4.9	0%	4.8	4.8	0%

TABLE 10
the degree of shrinkage of the dyed fabric of polyester after dry-cleaned one time,
two and five times with a dry-cleaning solvent
	the degree of shrinkage
	warp sense	weft sense
	fabric scale	fabric scale		fabric scale	fabric scale
	before dry-	after dry-	the degree of	before dry-	after dry-	the degree of
polyester	cleaned	cleaned	shrinkage	cleaned	cleaned	shrinkage
propylene glycol	one time	21.5	21.5	0%	6	6	0%
methyl ether	two times	21.5	21.5	0%	6	6	0%
propionate	five times	21.5	21.5	0%	6	6	0%
stoddard solvent	one time	21.52	21.5	0.092%	6.1	6	1.63%
type I	two times	21.3	21.3	0%	5.8	5.7	1.72%
	five times	21.6	21.4	0.92%	6	6	0%
stoddard solvent	one time	4.7	4.7	0%	4.7	4.7	0%
type II	two times	4.8	4.8	0%	4.8	4.8	0%
	five times	4.7	4.7	0%	4.8	4.8	0%
perchloroethylene	one time	5	5	0%	5	5	0%
	two times	5	5	0%	5	5	0%
	five times	4.9	4.9	0%	5	5	0%

TABLE 11
the degree of shrinkage of the dyed fabric of wool/polyacrylonitrile after dry-cleaned one time,
two and five times with a dry-cleaning solvent
	the degree of shrinkage
	warp sense	weft sense
	fabric scale	fabric scale		fabric scale	fabric scale
	before dry-	after dry-	the degree of	before dry-	after dry-	the degree of
wool/polyacrylonitrile	cleaned	cleaned	shrinkage	cleaned	cleaned	shrinkage
propylene glycol	one time	20.5	20.4	0.48%	6.3	6.3	0%
methyl ether	two times	20.5	20.5	0%	6.3	6.3	0%
propionate	five times	20.5	20.4	0.46%	6.3	6.3	0%
stoddard solvent	one time	20.72	20.55	0.82%	6.35	6.3	0.78%
type I	two times	20.5	20.45	0.24%	6.6	6.6	0%
	five times	20.2	20.1	0.49%	6.45	6	7.5%
stoddard solvent	one time	4.95	4.95	0%	4.8	4.8	0%
type II	two times	5	5	0%	4.7	4.7	0%
	five times	4.9	4.9	0%	4.85	4.85	0%
perchloroethylene	one time	5	5	0%	5	5	0%
	two times	4.9	4.9	0%	4.9	4.9	0%
	five times	4.9	4.9	0%	4.8	4.8	0%

TABLE 12
the degree of shrinkage of the dyed fabric of polyester/rayon after dry-cleaned one time,
two and five times with a dry-cleaning solvent
	the degree of shrinkage
	warp sense	weft sense
	fabric scale	fabric scale		fabric scale	fabric scale
	before dry-	after dry-	the degree of	before dry-	after dry-	the degree of
polyester/rayon	cleaned	cleaned	shrinkage	cleaned	cleaned	shrinkage
propylene glycol	one time	21.7	21.6	0.46%	6	5.9	1.66%
methyl ether	two times	21.7	21.6	0%	6	5.9	1.66%
propionate	five times	21.7	21.5	0.92%	6	5.9	1.66%
stoddard solvent	one time	21.4	21	1.86%	6.1	5.8	4.91%
type I	two times	21.2	21.15	0.235%	5.9	5.8	1.69%
	five times	21.15	20.95	0.94%	5.85	5.7	0.85%
stoddard solvent	one time	4.9	4.9	0%	4.85	4.85	0%
type II	two times	5	5	0%	5	5	0%
	five times	5	5	0%	5	5	0%
perchloroethylene	one time	5	5	0%	5	5	0%
	two times	5	5	0%	5	5	0%
	five times	5	5	0%	4.9	4.9	0%

TABLE 13
the degree of shrinkage of the dyed fabric of nylon/polyacrylonitrile after dry-cleaned one time,
two and five times with a dry-cleaning solvent
	the degree of shrinkage
	warp sense	weft sense
	fabric scale	fabric scale		fabric scale	fabric scale
	before dry-	after dry-	the degree of	before dry-	after dry-	the degree of
nylon/polyacrylonitrile	cleaned	cleaned	shrinkage	cleaned	cleaned	shrinkage
propylene glycol	one time	21.9	21.4	2.28%	6.6	6	9.09%
methyl ether	two times	21.9	21.3	2.73%	6.6	6	9.09%
propionate	five times	21.9	21.3	2.73%	6.6	6	9.09%
stoddard solvent	one time	21.5	20.8	3.25%	6.1	5.85	4.09%
type I	two times	21.4	20.7	3.27%	6	5.7	5%
	five times	21.85	20.3	7.09%	6.8	5.45	19.85%
stoddard solvent	one time	7.65	7.5	1.9%	5.3	5.2	1.8%
type II	two times	4.65	4.55	2.15%	3.75	3.7	1.33%
	five times	4.65	4.6	1.07%	3.9	3.85	1.28%
perchloroethylene	one time	4.3	4	6.57%	3.5	3.5	0%
	two times	4.1	4.1	0%	3.55	3.55	0%
	five times	4	4	0%	3.7	3.7	0%

TABLE 14
the degree of shrinkage of the dyed fabric of cotton after dry-cleaned one time,
two and five times with a dry-cleaning solvent
	the degree of shrinkage
	warp sense	weft sense
	fabric scale	fabric scale		fabric scale	fabric scale
	before dry-	after dry-	the degree of	before dry-	after dry-	the degree of
cotton	cleaned	cleaned	shrinkage	cleaned	cleaned	shrinkage
propylene glycol	one time	21.6	21.5	0.46%	6	5.9	1.66%
methyl ether	two times	21.6	21.6	0%	6	6	0%
propionate	five times	21.6	21.5	0.46%	6	6	0%
stoddard solvent	one time	21.1	20.8	1.42%	6.25	6.2	0.8%
type I	two times	21.2	21.2	0%	6	5.8	3.33%
	five times	21.3	21.15	0.7%	5.9	5.85	0.84%
stoddard solvent	one time	4.85	4.85	0%	4.9	4.9	0%
type II	two times	4.9	4.9	0%	5	5	0%
	five times	4.9	4.9	0%	5	5	0%
perchloroethylene	one time	5	5	0%	5	4.95	1%
	two times	4.95	4.9	1.01%	4.9	4.8	2.04%
	five times	5	5	0%	4.9	4.9	0%

TABLE 15
the degree of shrinkage of the dyed fabric of polyester/cotton after dry-cleaned one time,
two and five times with a dry-cleaning solvent
	the degree of shrinkage
	warp sense	weft sense
	fabric scale	fabric scale		fabric scale	fabric scale
	before dry-	after dry-	the degree of	before dry-	after dry-	the degree of
polyester/cotton	cleaned	cleaned	shrinkage	cleaned	cleaned	shrinkage
propylene glycol	one time	21.2	21.2	0%	6	6	0%
methyl ether	two times	21.2	21.2	0%	6	6	0%
propionate	five times	21.2	21.1	0.47%	6	5.9	1.66%
stoddard solvent	one time	21.2	21.1	0.47%	5.9	5.85	0.84%
type I	two times	21.2	21	0.94%	6.1	5.9	3.27%
	five times	21.65	21.45	0.923%	6	5.8	3.33%
stoddard solvent	one time	4.8	4.8	0%	4.8	4.8	0%
type II	two times	4.9	4.9	0%	4.75	4.75	0%
	five times	5.1	5.1	0%	5	5	0%
perchloroethylene	one time	4.9	4.9	0%	4.9	4.9	0%
	two times	5	5	0%	5	5	0%
	five times	5	5	0%	5	5	0%

TABLE 16
the degree of shrinkage of the dyed fabric of nylon after dry-cleaned one time,
two and five times with a dry-cleaning solvent
	the degree of shrinkage
	warp sense	weft sense
	fabric scale	fabric scale		fabric scale	fabric scale
	before dry-	after dry-	the degree of	before dry-	after dry-	the degree of
nylon	cleaned	cleaned	shrinkage	cleaned	cleaned	shrinkage
propylene glycol	one time	19.8	19.8	0%	5.8	5.8	0%
methyl ether	two times	19.8	19.8	0%	5.8	5.7	1.72%
propionate	five times	19.8	19.8	0%	5.8	5.7	1.72%
stoddard solvent	one time	20.2	19.7	2.47%	5.8	5.5	5.17%
type I	two times	19.95	19.7	1.25%	5.9	5.65	4.23%
	five times	19.7	19.35	1.77%	5.7	5.3	7.01%
stoddard solvent	one time	4.85	4.85	0%	4.95	4.95	0%
type II	two times	5	5	0%	4.9	4.9	0%
	five times	4.9	4.9	0%	4.9	4.9	0%
perchloroethylene	one time	5	4.95	1%	5	4.95	0%
	two times	5	4.95	1%	5	5	0%
	five times	4.9	4.9	0%	4.9	4.9	0%

TABLE 17
the load weight, the displacement, the stress, the specific stress and the
strain of the dyed fabric of wool/polyester at the maximum load point
before dry-cleaned and after dry-cleaned with a dry-cleaning solvent
	load			specific
	weight	displacement	stress	stress	strain
wool/polyester	(kg)	(mm)	(kg/mm 2 )	(kg/l)	(%)
before dry-cleaned	26.39	44.48	2.31	26.39	29.65
after dry-cleaned with propylene glycol methyl ether propionate
one time	21.67	47.62	1.9	21.67	31.75
two times	22.1	46.36	1.94	22.1	30.88
five times	35.83	50.11	3.14	35.83	33.4
ten times	26.24	50.95	2.3	26.24	33.96
twenty times	27.31	49.23	2.4	27.31	32.82
after dry-cleaned with stoddard solvent type I
one time	20.25	63.75	1.5	20.25	42.5
two times	17.14	47.86	1.27	17.14	31.9
five times	24.1	7.93	1.79	24.1	47.95
after dry-cleaned with stoddard solvent type II
one time	24.63	71.57	1.82	24.63	47.71
two times	38.36	78.27	2.84	38.36	52.18
five times	50.88	93.5	3.77	50.88	62.33
after dry-cleaned with perchloroethylene
one time	21.76	75.72	1.61	21.76	50.48
two times	21.13	56.47	1.57	21.13	37.64
five times	29.11	77.59	2.15	29.11	51.72

TABLE 18
the load weight, the displacement, the stress, the specific stress and the
strain of the dyed fabric of polyester at the maximum load point before
dry-cleaned and after dry-cleaned with a dry-cleaning solvent
	load			specific
	weight	displacement	stress	stress	strain
polyester	(kg)	(mm)	(kg/mm 2 )	(kg/l)	(%)
before dry-cleaned	16.5	50.72	1.22	16.5	33.81
after dry-cleaned with propylene glycol methyl ether propionate
one time	19.33	65.17	1.43	19.33	43.44
two times	15.73	42.72	1.16	15.73	24.48
five times	22.35	67.14	1.66	22.35	44.76
ten times	20.5	59.43	1.52	20.5	39.62
twenty times	19.18	51.05	1.42	19.18	34.03
after dry-cleaned with stoddard solvent type I
one time	22.25	51.52	1.95	22.25	34.16
two times	21.47	52.31	1.88	21.47	34.87
five times	23.71	44.23	2.08	23.71	29.49
after dry-cleaned with stoddard solvent type II
one time	38.61	51.52	2.9	38.61	34.34
two times	35.59	55.03	2.68	35.59	36.69
five times	31.6	53.42	2.38	31.6	35.61
after dry-cleaned with perchloroethylene
one time	27.8	51.94	2.09	27.8	34.62
two times	23.9	48.91	1.8	23.9	32.61
five times	26.34	48.06	1.98	26.34	32.04

TABLE 19
the load weight, the displacement, the stress, the specific stress and the
strain of the dyed fabric of cotton at the maximum load point before
dry-cleaned and after dry-cleaned with a dry-cleaning solvent
	load			specific
	weight	displacement	stress	stress	strain
cotton	(kg)	(mm)	(kg/mm 2 )	(kg/l)	(%)
before dry-cleaned	20.2	27.71	2.93	20.2	18.47
after dry-cleaned with propylene glycol methyl ether propionate
one time	33.01	14.37	4.78	33.01	9.58
two times	39.58	19.72	5.74	39.58	13.14
five times	45.18	21.21	6.55	45.18	14.14
ten times	23.95	15.91	3.47	23.95	10.6
twenty times	23.17	23.6	3.36	23.17	15.73
after dry-cleaned with stoddard solvent type I
one time	40.11	18.65	5.81	40.11	12.43
two times	13.53	20.17	1.96	13.53	13.45
five times	13.49	20.33	1.95	13.49	13.55
after dry-cleaned with stoddard solvent type II
one time	58.03	23.51	6.82	58.03	11.76
two times	61.93	24.86	7.28	61.93	12.43
five times	37.88	21.54	4.45	37.88	10.77
after dry-cleaned with perchloroethylene
one time	22.88	11.3	2.69	22.88	5.65
two times	24.73	31.9	2.9	24.73	15.95
five times	23.52	28.06	2.76	23.52	14.03

TABLE 20
the load weight, the displacement, the stress, the specific stress and the
strain of the dyed fabric of wool at the maximum load point before
dry-cleaned and after dry-cleaned with a dry-cleaning solvent
	load			specific
	weight	displacement	stress	stress	strain
wool	(kg)	(mm)	(kg/mm 2 )	(kg/l)	(%)
before dry-cleaned	20.35	23.9	1.36	20.35	23.9
after dry cleaned with propylene glycol methyl ether propionate
one time	13.83	47.04	0.92	13.83	47.94
two times	14.02	48.77	0.93	14.02	48.77
five times	13.15	43.11	0.88	13.15	43.11
ten times	14.21	39.62	0.93	14.02	39.62
twenty times	14.31	53.23	0.95	14.31	53.23
after dry-cleaned with stoddard solvent type I
one time	24.39	44.03	1.63	24.39	44.03
two times	13.49	53.63	0.9	13.49	53.63
five times	23.81	37.08	1.59	23.81	37.08
after dry-cleaned with stoddard solvent type II
one time	32.81	79.66	1.64	32.81	39.83
two times	28.58	78.02	1.43	28.58	39.01
five times	25.75	87.1	1.29	25.75	43.55
after dry-cleaned with perchloroethylene
one time	16.65	81.25	0.83	16.65	40.62
two times	15.38	69.71	0.77	15.38	34.85
five times	13.92	75.31	0.7	13.92	37.66

TABLE 21
the load weight, the displacement, the stress, the specific stress and the
strain of the dyed fabric of wool/polyacrylonitrile at the maximum load
point before dry-cleaned and after dry-cleaned with a dry-cleaning solvent
	load			specific
wool/	weight	displacement	stress	stress	strain
polyacrylonitrile	(kg)	(mm)	(kg/mm 2 )	(kg/l)	(%)
before dry-cleaned	16.99	32.46	1.03	16.99	21.64
after dry-cleaned with propylene glycol methyl ether propionate
one time	23.71	43.26	1.44	23.71	28.84
two times	23.95	42.49	1.45	23.95	28.32
five times	25.51	46.68	1.55	25.51	29.12
ten times	25.66	41.57	1.55	25.66	27.71
twenty times	20.93	38.5	1.27	20.93	25.66
after dry-cleaned with stoddard solvent type I
one time	22.49	39.89	1.36	22.49	26.6
two times	19.47	37.2	1.18	19.47	24.8
five times	20.06	39.92	1.22	20.06	26.61
after dry-cleaned with stoddard solvent type II
one time	24.73	70.11	1.28	24.73	35.05
two times	24.73	69.84	1.28	24.73	34.9
five times	21.08	62.28	1.1	21.08	31.14
after dry-cleaned with perchloroethylene
one time	21.18	50.92	1.1	21.18	25.46
two times	19.04	50.65	0.99	19.04	25.33
five times	16.46	45.23	0.85	16.46	22.62

TABLE 22
the load weight, the displacement, the stress, the specific stress and the
strain of the dyed fabric of nylon/polyacrylonitrile at the maximum load
point before dry-cleaned and after dry-cleaned with a dry-cleaning solvent
	load			specific
nylon/	weight	displacement	stress	stress	strain
polyacrlonitrile	(kg)	(mm)	(kg/mm 2 )	(kg/l)	(%)
before dry-cleaned	11.49	62.08	1.2	11.49	41.39
after dry-cleaned with propylene glycol methyl ether propionate
one time	10.13	63.53	1.05	10.13	42.35
two times	10.08	58.21	1.05	10.08	38.8
five times	10.08	58.21	1.05	10.08	38.8
ten times	14.56	53.32	1.52	14.56	35.54
twenty times	8.67	56.61	0.9	8.67	37.74
after dry-cleaned with stoddard solvent type I
one time	11.07	66.48	1.15	11.07	44.32
two times	10.12	64.68	1.05	10.12	43.12
five times	13.58	62.3	1.41	13.58	41.51
after dry-cleaned with stoddard solvent type II
one time	15.37	53.35	1.2	15.37	35.57
two times	15.26	86.85	1.19	15.26	57.9
five times	14.4	64	1.12	14.4	42.67
after dry-cleaned with perchloroethylene
one time	12.86	73	1	12.86	48.66
two times	14.47	84.76	1.13	14.47	56.5
five times	9.67	57.66	0.76	9.67	38.44

TABLE 23
the load weight, the displacement, the stress, the specific stress and the
strain of the dyed fabric of nylon at the maximum load point before
dry-cleaned and after dry-cleaned with a dry-cleaning solvent
	load			specific
	weight	displacement	stress	stress	strain
nylon	(kg)	(mm)	(kg/mm 2 )	(kg/l)	(%)
before dry-cleaned	27.95	50.56	—	27.95	33.7
after dry-cleaned with propylene glycol methyl ether propionate
one time	55.55	40.48	—	55.55	26.98
two times	30.43	26.95	—	30.43	17.72
five times	59.25	62.73	—	59.25	41.82
ten times	48.49	39.67	—	48.49	26.44
twenty times	43.04	37.10	—	43.04	24.73
after dry-cleaned with stoddard solvent type I
one time	63.19	70.53	—	63.19	47.02
two times	60.71	44.92	—	60.71	29.94
five times	59.25	60.84	—	59.25	40.56
after dry-cleaned with stoddard solvent type II
one time	41.63	53.72	5.92	41.63	35.81
two times	77.65	51.36	11.05	77.65	34.24
five times	66.55	45.54	9.47	66.55	30.36
after dry-cleaned with perchloroethylene
one time	29.36	54.12	4.18	29.36	36.08
two times	31.84	52.12	4.53	31.84	34.74
five times	33.15	58.47	4.72	33.15	38.98

TABLE 24
the load weight, the displacement, the stress, the specific stress and the
strain of the dyed fabric of polyester/rayon at the maximum load point
before dry-cleaned and after dry-cleaned with a dry-cleaning solvent
	load			specific
	weight	displacement	stress	stress	strain
polyester/rayon	(kg)	(mm)	(kg/mm 2 )	(kg/l)	(%)
before dry-cleaned	40.75	40.93	3.02	40.75	27.29
after dry-cleaned with propylene glycol methyl ether propionate
one time	43.14	44.55	3.2	43.14	29.7
two times	38.7	42.1	2.87	38.7	28.07
five times	40.99	41.69	3.04	40.99	27.79
ten times	45.91	43.86	3.4	45.91	29.24
twenty times	49.81	45.23	3.69	49.81	30.15
after dry-cleaned with stoddard solvent type I
one time	39.58	42.9	2.93	39.58	28.6
two times	41.19	44	3.05	41.19	29.35
five times	46.4	45.68	3.44	46.4	30.45
after dry-cleaned with stoddard solvent type II
one time	95.33	68.08	5.3	95.33	30.04
two times	44.11	39.71	2.45	44.11	19.86
five times	21.26	33.27	1.74	31.26	16.64
after dry-cleaned with perchloroethylene
one time	45.57	53.34	2.53	45.57	26.67
two times	47.57	57.02	2.64	47.57	28.5
five times	55.11	57.82	3.06	55.11	28.91

TABLE 25
the load weight, the displacement, the stress, the specific stress and the
strain of the dyed fabric of polyester/cotton at the maximum load point
before dry-cleaned and after dry-cleaned with a dry-cleaning solvent
	load			specific
	weight	displacement	stress	stress	strain
polyester/cotton	(kg)	(mm)	(kg/mm 2 )	(kg/l)	(%)
before dry-cleaned	18.26	23.92	2.6	18.26	15.94
after dry-cleaned with propylene glycol methyl ether propionate
one time	21.62	31.79	3.25	21.62	21.2
two times	21.91	31.41	3.29	21.91	20.94
five times	22.78	33.36	3.43	22.78	22.24
ten times	22.54	32.22	3.39	22.54	21.48
twenty times	22.05	31.95	3.32	22.05	21.3
after dry-cleaned with stoddard solvent type I
one time	21.76	28.88	3.27	21.76	19.25
two times	23.37	30.37	3.51	23.37	20.24
five times	22.69	31.7	3.41	22.69	21.13
after dry-cleaned with stoddard solvent type II
one time	48.93	28.63	6.96	48.93	14.31
two times	42.21	26.5	6	42.21	13.25
five times	40.85	29.53	5.81	40.85	17.76
after dry-cleaned with perchloroethylene
one time	22.83	34.94	3.25	22.83	17.47
two times	21.42	32.96	3.05	21.24	16.48
five times	16.8	27.93	2.39	16.8	13.96

TABLE 26
the load weight, the displacement, the stress, the specific stress and the
strain of the undyed fabric of gray cotton goods at the maximum load
point before dry-cleaned and after dry-cleaned with a dry-cleaning solvent
	load			specific
	weight	displacement	stress	stress	strain
gray cotton goods	(kg)	(mm)	(kg/mm 2 )	(kg/l)	(%)
before dry-cleaned	33.98	13.35	6.8	33.98	6.67
after dry-cleaned with propylene glycol methyl ether propionate
one time	22.44	14.36	4.49	22.44	7.18
two times	24.73	14.33	4.95	24.73	7.17
five times	31.89	17.54	6.38	31.89	8.77
after dry-cleaned with stoddard solvent type I
one time	24.63	14.7	4.93	24.63	7.35
two times	22.59	14.51	4.52	22.59	7.25
five times	22.95	16.2	5.9	25.95	8.1
after dry-cleaned with stoddard solvent type II
one time	29.99	15.46	6	29.99	7.73
two times	37.78	18.13	7.56	37.78	9.06
five times	22.15	15.37	4.43	22.15	7.69
after dry-cleaned with perchloroethylene
one time	31.94	48.52	6.39	31.94	9.26
two times	21.71	16.54	4.34	21.71	8.27
five times	23.13	15.89	4.63	12.13	7.94

TABLE 27
the load weight, the displacement, the stress, the specific stress and the
strain of the undyed fabric of gray nylon goods at the maximum load point
before dry-cleaned and after dry-cleaned with a dry-cleaning solvent
	load			specific
	weight	displacement	stress	stress	strain
gray nylon goods	(kg)	(mm)	(kg/mm 2 )	(kg/l)	(%)
before dry-cleaned	20.74	41.12	4.15	20.74	20.56
after dry cleaned with propylene glycol methyl ether propionate
one time	27.22	63.59	5.44	27.22	31.79
two times	31.89	58.07	6.38	31.89	29.03
five times	28.33	63.19	5.67	28.33	31.59
after dry-cleaned with stoddard solvent type I
one time	31.21	57.9	6.24	31.21	28.95
two times	24.93	58.04	4.99	24.93	29.02
five times	26.68	65.98	5.34	26.68	32.99
after dry-cleaned with stoddard solvent type II
one time	28.04	61.58	5.61	28.04	30.79
two times	24.39	39.36	4.88	24.39	19.68
five times	24.05	60.41	4.81	24.05	30.2
after dry-cleaned with perchloroethylene
one time	32.81	65.96	6.56	32.81	32.98
two times	28.29	59.26	5.66	28.29	29.63
five times	32.28	63.23	6.46	32.28	31.62

TABLE 28
the load weight, the displacement, the stress, the specific stress and the
strain of the undyed fabric of gray polyester goods at the maximum load
point before dry-cleaned and after dry-cleaned with a dry-cleaning solvent
	load			specific
	weight	displacement	stress	stress	strain
gray polyester goods	(kg)	(mm)	(kg/mm 2 )	(kg/l)	(%)
before dry-cleaned	63.49	44.85	12.7	63.49	22.43
after dry-cleaned with propylene glycol methyl ether propionate
one time	40.51	65.2	5.79	40.51	32.6
two times	35.74	57.25	5.1	35.74	28.63
five times	30.67	59.17	4.38	30.67	29.59
after dry-cleaned with stoddard solvent type I
one time	35.39	60.53	5.06	35.39	30.27
two times	37.24	60.33	5.32	37.24	30.16
five times	38.61	59.47	5.52	38.61	29.73
after dry-cleaned with stoddard solvent type II
one time	33.5	57.02	4.79	33.5	28.51
two times	34.81	57.51	4.97	34.81	28.76
five times	28.17	52.87	5.45	38.17	26.44
after dry-cleaned with perchloroethylene
one time	33.2	60.46	4.74	33.2	30.23
two times	27.46	60.35	3.92	27.46	30.18
five times	36.66	54.62	5.24	36.66	27.31

TABLE 29
the load weight, the displacement, the stress, the specific stress and the
strain of the undyed fabric of gray silk goods at the maximum load point
before dry-cleaned and after dry-cleaned with a dry-cleaning solvent
	load			specific
	weight	displacement	stress	stress	strain
gray silk goods	(kg)	(mm)	(kg/mm 2 )	(kg/l)	(%)
before dry-cleaned	32.08	53.43	5.83	32.08	26.72
after dry-cleaned with propylene glycol methyl ether propionate
one time	15.63	38.99	2.84	95.63	19.5
two times	32.57	55.75	5.92	32.57	27.88
five times	27.26	60.53	4.96	27.26	30.26
after dry-cleaned with stoddard solvent type I
one time	31.74	62.08	5.77	31.74	31.04
two times	27.75	45.03	27.75	27.75	22.52
five times	28.97	60.48	28.97	28.97	30.24
after dry-cleaned with stoddard solvent type II
one time	28.58	57.89	5.2	28.58	28.94
two times	33.11	58.92	6.02	33.11	29.46
five times	29.16	60.2	5.3	29.16	30.1
after dry-cleaned with perchloroethylene
one time	22.59	52.77	4.11	22.59	26.39
two times	23.81	64.41	4.33	23.81	33.7
five times	28.29	54.2	5.14	28.29	27.1

TABLE 30
the load weight, the displacement, the stress, the specific stress and the
strain of the undyed fabric of gray wool goods at the maximum load point
before dry-cleaned and after dry-cleaned with a dry-cleaning solvent
	load			specific
	weight	displacement	stress	stress	strain
gray wool goods	(kg)	(mm)	(kg/mm 2 )	(kg/l)	(%)
before dry-cleaned	84.91	88.83	4.85	84.91	59.22
after dry-cleaned with propylene glycol methyl ether propionate
one time	82.57	87.75	4.72	82.57	58.5
two times	85.2	89.39	4.87	85.2	59.6
five times	76.24	81.58	4.36	76.24	54.39
after dry-cleaned with stoddard solvent type I
one time	77.26	83.89	4.42	77.26	55.92
two times	90.56	86.75	5.17	90.56	57.83
five times	85	84.55	4.86	85	56.36
after dry-cleaned with stoddard solvent type II
one time	85.49	85.25	4.89	85.49	56.83
two times	87.93	83.54	5.02	87.93	55.69
five times	82.33	87.03	4.7	82.33	58.02
after dry-cleaned with perchloroethylene
one time	83.64	82.56	4.78	83.64	55.04
two times	88.56	90.89	5.06	88.56	60.59
five times	67.14	74.1	3.84	67.14	49.4

TABLE 31
the bursting strength and softness of the dyed fabric of wool/polyester
before dry-cleaned and after dry-cleaned with a dry-cleaning solvent
	bursting strength
	bursting		softness
	strength	percentage	softness	percentage
wool/polyester	(kg · f/cm 2 )	of variation	(cm)	of variation
before dry-cleaned	13	—	2.83	—
after dry-cleaned with propylene glycol methyl ether propionate
one time	13.5	3.85	2.6	−8.13
two times	13.5	3.85	2.6	−8.13
five times	13	0	2.7	−4.59
ten times	13.75	5.77	2.8	−1.06
twenty times	13	0	2.8	−1.06
after dry-cleaned with stoddard solvent type I
one time	13.5	3.85	2.5	−11.66
two times	13.5	3.85	2.3	−18.73
five times	13.25	1.92	2.6	−8.13
after dry-cleaned with stoddard solvent type II
one time	13.5	3.85	2.7	−4.59
two times	13.5	3.85	3.05	7.77
five times	13	0	2.6	−8.13
after dry-cleaned with perchloroethylene
one time	13	0	2.9	2.47
two times	13	0	2.7	−4.59
five times	13.25	1.92	2.7	−4.59

TABLE 32
the bursting strength and softness of the dyed fabric of wool before
dry-cleaned and after dry-cleaned with a dry-cleaning solvent
	bursting strength	softness
	bursting strength	percentage	softness	percentage
wool	(kg · f/cm 2 )	of variation	(cm)	of variation
before	9.5	—	3.25	—
dry-cleaned
after dry-cleaned with propylene glycol methyl ether propionate
one time	10	11.08	2.1	−35.28
two times	10	11.08	3.3	1.538
five times	10	11.08	2.8	−13.85
ten times	10	11.08	2.3	−29.23
twenty times	10	11.08	2.2	−32.3
after dry-cleaned with stoddard solvent type I
one time	10	11.08	3.1	−4.61
two times	10	11.08	2.6	−20
five times	10	11.08	2.3	−29.23
after dry-cleaned with stoddard solvent type II
one time	9.5	0	3.1	−4.61
two times	10	11.08	3.4	4.62
five times	9.75	2.63	3.9	20
after dry-cleaned with perchloroethylene
one time	9.25	−2.63	2.5	−23.08
two times	9	−5.26	2.2	−32.3
five times	9.25	−2.63	2	−38.46

TABLE 33
the bursting strength and softness of the dyed fabric of polyester before
dry-cleaned and after dry-cleaned with a dry-cleaning solvent
	bursting strength	softness
	bursting strength	percentage	softness	percentage
polyester	(kg · f/cm 2 )	of variation	(cm)	of variation
before	13	—	2.1	—
dry-cleaned
after dry-cleaned with propylene glycol methyl ether propionate
one time	13	0	1.7	−19.05
two times	12.5	−3.85	1.7	−19.05
five times	12.75	−1.92	2.1	0
ten times	12.5	−3.85	1.9	−9.52
twenty times	12.75	−1.92	2	−4.76
after dry-cleaned with stoddard solvent type I
one time	13	0	1.7	−19.05
two times	12.75	−1.92	1.6	−23.81
five times	12.25	−1.92	1.6	−23.81
after dry-cleaned with stoddard solvent type II
one time	12.75	−1.92	2.05	−2.38
two times	12.5	−3.85	2.5	19.5
five times	12.5	−3.85	2.4	14.29
after dry-cleaned with perchloroethylene
one time	12.5	−3.85	1.8	−14.29
two times	13	0	2	−4.76
five times	12.5	−3.85	1.8	−14.29

TABLE 34
the bursting strength and softness of the dyed fabric of
wool/polyacrylonitrile before dry-cleaned and after dry-cleaned with a
dry-cleaning solvent
	bursting strength	softness
wool/poly-	bursting strength	percentage	softness	percentage
acrylonitrile	(kg · f/cm 2 )	of variation	(cm)	of variation
before	11	—	2.7	—
dry-cleaned
after dry-cleaned with propylene glycol methyl ether propionate
one time	11.5	4.55	2.6	−3.7
two times	11.5	4.55	2.9	7.41
five times	11	0	2.9	7.41
ten times	12.5	13.64	2.7	0
twenty times	11	0	2.4	−11.11
after dry-cleaned with stoddard solvent type I
one time	11	0	2.7	0
two times	11.5	4.55	2.7	0
five times	12	9.09	2.6	−3.7
after dry-cleaned with stoddard solvent type II
one time	11.5	4.55	2.55	−5.56
two times	12.25	11.36	2.85	0.56
five times	11.25	2.27	2.4	−11.11
after dry-cleaned with perchloroethylene
one time	11.75	6.82	3	11.11
two times	11.25	2.27	2.7	0
five times	12.25	11.36	2.6	−3.7

TABLE 35
the bursting strength and softness of the dyed fabric of polyester/rayon
before dry-cleaned and after dry-cleaned with a dry-cleaning solvent
	bursting strength	softness
	bursting strength	percentage	softness	percentage
polyester/rayon	(kg · f/cm 2 )	of variation	(cm)	of variation
before	26	—	2.63	—
dry-cleaned
after dry-cleaned with propylene glycol methyl ether propionate
one time	26	0	2.8	6.46
two times	28	7.69	2.6	−1.14
five times	27	3.85	2.5	−4.94
ten times	27	3.85	2.5	−4.94
twenty times	27	3.85	2.5	−4.94
after dry-cleaned with stoddard solvent type I
one time	28	7.69	2.3	−12.55
two times	28	7.69	2.3	−12.55
five times	28.75	10.58	2.5	−4.94
after dry-cleaned with stoddard solvent type II
one time	28.25	8.65	3.1	17.87
two times	26.5	1.92	2.65	0.76
five times	27.5	5.77	2.6	−1.14
after dry-cleaned with perchloroethylene
one time	25.5	−1.92	2.6	−1.14
two times	27.25	14.81	2.5	−4.94
five times	26	0	2.3	−12.55

TABLE 36
the bursting strength and softness of the dyed fabric of
nylon/polyacrylonitrile before dry-cleaned and after dry-cleaned with a
dry-cleaning solvent
	bursting strength	softness
nylon/poly-	bursting strength	percentage	softness	percentage
acrylonitrile	(kg · f/cm 2 )	of variation	(cm)	of variation
before	5.67	—	2	—
dry-cleaned
after dry-cleaned with propylene glycol methyl ether propionate
one time	7.5	32.28	2	0
two times	6.5	14.64	1.9	−5
five times	6.25	10.23	2.1	5
ten times	6.25	10.23	2.2	10
twenty times	6	5.82	1.9	−5
after dry-cleaned with stoddard solvent type I
one time	6	5.82	1.9	−5
two times	6.5	14.64	2	0
five times	7	0.23	2	0
after dry-cleaned with stoddard solvent type II
one time	6	5.82	2.3	15
two times	6.25	10.23	2	0
five times	6.25	10.23	2.2	10
after dry-cleaned with perchloroethylene
one time	6.25	10.23	2.2	10
two times	6.25	10.23	2	0
five times	6.25	10.23	2	0

TABLE 37
the bursting strength and softness of the dyed fabric of cotton before
dry-cleaned and after dry-cleaned with a dry-cleaning solvent
	bursting strength	softness
	bursting strength	percentage	softness	percentage
cotton	(kg · f/cm 2 )	of variation	(cm)	of variation
before	11.67	—	2.15	—
dry-cleaned
after dry-cleaned with propylene glycol methyl ether propionate
one time	10	−14.31	3.3	53.49
two times	11.5	−14.57	3	39.53
five times	11	−5.74	2.9	0.35
ten times	11.25	−3.6	2.8	30.23
twenty times	11.75	0.69	2.5	16.28
after dry-cleaned with stoddard solvent type I
one time	11	−5.74	3.4	58.14
two times	11.25	−14.57	3.4	58.14
five times	11.25	−3.6	2.7	25.58
after dry-cleaned with stoddard solvent type II
one time	11	−5.74	4	86.05
two times	11	−5.74	3.65	69.77
five times	10.5	−10.03	3.9	81.4
after dry-cleaned with perchloroethylene
one time	12.25	4.97	3.4	58.14
two times	12	2.83	3	39.53
five times	11.5	−14.57	2.9	0.35

TABLE 38
the bursting strength and softness of the dyed fabric of polyester/cotton
before dry-cleaned and after dry-cleaned with a dry-cleaning solvent
	bursting strength	softness
polyester/	bursting strength	percentage	softness	percentage
cotton	(kg · f/cm 2 )	of variation	(cm)	of variation
before	12	—	2.63	—
dry-cleaned
after dry-cleaned with propylene glycol methyl ether propionate
one time	11.5	−4.17	2.8	6.46
two times	11.5	−4.17	2.4	−8.75
five times	11	−8.33	2.4	−8.75
ten times	11.5	−4.17	2.4	−8.75
twenty times	11.5	−4.17	2.4	−8.75
after dry-cleaned with stoddard solvent type I
one time	11.5	−4.17	2.7	2.66
two times	11.5	−4.17	2.6	−1.14
five times	11.5	−4.17	2.6	−1.14
after dry-cleaned with stoddard solvent type II
one time	12.5	4.17	3.6	36.88
two times	11.75	−2.08	3.05	15.97
five times	11.25	−6.25	3.5	33.08
after dry-cleaned with perchloroethylene
one time	2	0	2.45	−6.84
two times	12	0	3	14.07
five times	11.5	−4.17	2.7	2.66

TABLE 39
the bursting strength and softness of the dyed fabric of nylon before
dry-cleaned and after dry-cleaned with a dry-cleaning solvent
	bursting strength	softness
	bursting strength	percentage	softness	percentage
nylon	(kg · f/cm 2 )	of variation	(cm)	of variation
before	19.76	—	5.05	—
dry-cleaned
after dry-cleaned with propylene glycol methyl ether propionate
one time	18	−8.49	5.5	8.91
two times	19.5	−0.86	5	−0.99
five times	17.5	−11.03	5	−0.99
ten times	18	−8.49	5	−0.99
twenty times	18	−8.49	4.9	−2.97
after dry-cleaned with stoddard solvent type I
one time	19.5	−0.86	6.2	22.77
two times	18.5	−5.95	6.3	24.75
five times	17.5	−11.03	6.5	28.71
after dry-cleaned with stoddard solvent type II
one time	18.5	−5.95	3.55	−29.7
two times	18.25	−7.22	5.95	17.82
five times	19.25	−0.86	5.8	14.85
after dry-cleaned with perchloroethylene
one time	19.5	−0.86	4.2	−16.83
two times	19	−3.41	3.6	−28.71
five times	19	−3.41	3.3	−34.65

TABLE 40
the bursting strength and softness of the undyed fabric of gray
polyester goods before dry-cleaned and after dry-cleaned with a
dry-cleaning solvent
	bursting strength	softness
gray polyester	bursting strength	percentage	softness	percentage
goods	(kg · f/cm 2 )	of variation	(cm)	of variation
before	20	—	3.9	—
dry-cleaned
after dry-cleaned with propylene glycol methyl ether propionate
one time	21.5	7.5	4.6	2.56
two times	21	5	3.5	−10.26
five times	20.25	1.25	3.6	−7.7
after dry-cleaned with stoddard solvent type I
one time	22	10	4	2.56
two times	20.5	2.5	4.5	15.38
five times	21.75	8.75	3.4	−12.82
after dry-cleaned with stoddard solvent type II
one time	20.5	2.5	4.1	5.13
two times	21.5	7.5	3	−23.08
five times	20	0	3.4	−12.82
after dry-cleaned with perchloroethylene
one time	20	0	3.7	−5.13
two times	20.5	2.5	3.3	−15.38
five times	20	0	2.5	−35.9

TABLE 41
the bursting strength and softness of the undyed fabric of gray nylon
goods before dry-cleaned and after dry-cleaned with a dry-cleaning
solvent
	bursting strength	softness
gray nylon	bursting strength	percentage	softness	percentage
goods	(kg · f/cm 2 )	of variation	(cm)	of variation
before	12.87	—	4	—
dry-cleaned
after dry-cleaned with propylene glycol methyl ether propionate
one time	12.5	−5.59	2.7	−32.5
two times	12.5	−5.59	2.6	−35
five times	12.5	−5.59	2.7	−32.5
after dry-cleaned with stoddard solvent type I
one time	12.5	−5.59	3	−25
two times	12.5	−5.59	3.9	−25
five times	12.75	−0.93	3	−25
after dry-cleaned with stoddard solvent type II
one time	12.5	−5.59	4.1	2.5
two times	12.5	−5.59	3	−2.5
five times	12.5	−5.59	2.9	−27.5
after dry-cleaned with perchloroethylene
one time	12.75	−0.93	3.9	−2.5
two times	12.25	−4.82	3.2	−20
five times	12.25	−4.82	2.8	−30

TABLE 42
the bursting strength and softness of the undyed fabric of gray cotton
goods before dry-cleaned and after dry-cleaned with a dry-cleaning
solvent
	bursting strength	softness
gray	bursting strength	percentage	softness	percentage
cotton goods	(kg · f/cm 2 )	of variation	(cm)	of variation
before	13.5	—	5.4	—
dry-cleaned
after dry-cleaned with propylene glycol methyl ether propionate
one time	12.5	−7.41	5.8	7.41
two times	12.75	−5.56	5	−7.41
five times	13	−3.7	5	−7.41
after dry-cleaned with stoddard solvent type I
one time	13.5	0	6.6	22.22
two times	12.5	−7.41	6.6	22.22
five times	13.25	−1.85	5.2	−3.7
after dry-cleaned with stoddard solvent type II
one time	12	−11.11	5.2	−3.7
two times	12.5	−7.41	5	−7.41
five times	11.5	−4.81	4.2	−22.22
after dry-cleaned with perchloroethylene
one time	12.75	−5.56	6.3	16.67
two times	12.75	−5.56	5.1	−5.56
five times	11.5	−14.81	4.1	−24.07

TABLE 43
the bursting strength and softness of the undyed fabric of gray silk
goods before dry-cleaned and after dry-cleaned with a dry-cleaning
solvent
	bursting strength	softness
	bursting strength	percentage	softness	percentage
gray silk goods	(kg · f/cm 2 )	of variation	(cm)	of variation
before	12.87	—	2.4	—
dry-cleaned
after dry-cleaned with propylene glycol methyl ether propionate
one time	11.25	−12.59	2	−16.67
two times	10	−22.3	2.1	−12.5
five times	10.5	−18.41	2.1	−12.5
after dry-cleaned with stoddard solvent type I
one time	11.25	−12.59	2.2	−8.33
two times	10	−22.3	2.2	−8.33
five times	10	−22.3	2.1	−12.5
after dry-cleaned with stoddard solvent type II
one time	10.5	−18.41	2.1	−12.5
two times	10.25	−20.36	2.5	4.17
five times	11	−14.53	1.9	−20.83
after dry-cleaned with perchloroethylene
one time	11.75	−8.7	2.1	−12.5
two times	10.5	−18.41	2	−16.67
five times	11	−14.53	1.8	−25

TABLE 44
the bursting strength and softness of the undyed fabric of gray wool
goods before dry-cleaned and after dry-cleaned with a dry-cleaning
solvent
	bursting strength	softness
gray wool	bursting strength	percentage	softness	percentage
goods	(kg · f/cm 2 )	of variation	(cm)	of variation
before	22.42	—	3.8	—
dry-cleaned
after dry-cleaned with propylene glycol methyl ether propionate
one time	22.5	0.36	4.2	10.53
two times	21.75	−3	4.1	7.89
five times	23	2.59	4.1	7.89
after dry-cleaned with stoddard solvent type I
one time	21.75	−3	3.7	−2.63
two times	21.5	−4.1	3.7	−2.63
five times	23	2.59	3.9	2.63
after dry-cleaned with stoddard solvent type II
one time	21.75	−3	4	5.26
two times	21.5	−4.1	3.5	−7.89
five times	22.5	0.36	3.5	−7.89
after dry-cleaned with perchloroethylene
one time	21.75	−3	3.9	2.63
five times	22.25	−0.76	3.9	2.63
two times	21	−6.33	4	5.26

TABLE 45
the color fastness to light of a dyed fabric before dry-cleaned and after
dry-cleaned with a dry-cleaning solvent
	after dry-cleaned
		with propylene
		glycol methyl	with stoddard	with stoddard	with perchloro-
	before	ether propionate	solvent type I	solvent type II	ethylene
types of	dry-	1 time, 2, 5, 10,	1 time,	1 time,	1 time,
dyed fabric	cleaned	20 times	2, 5 times	2, 5 times	2, 5 times
nylon	fifth grade	fifth grade	fifth grade	fourth grade	4-5th grade
					(one time)
					4th grade
					(others)
nylon/poly-	fifth grade	3-4 grade	fifth grade	fifth grade	fifth grade
acrylonitrile		(20 times)
		fifth grade
		(others)
polyester/	above sixth	above sixth	above sixth	above sixth	above sixth
rayon	grade	grade	grade	grade	grade
polyester	between fourth	third grade	between third	between third	third grade
	and fifth grade		and fourth	and fourth
			grade	grade
cotton	between fourth	between fourth	fourth grade	fourth grade	fourth grade
	and fifth grade	and fifth grade
polyester/	between fourth	fourth grade	4th grade	fourth grade	3rd grade
cotton	and fifth grade		(one time),		(one time)
			3rd grade		2nd-3rd grade
			(others)		(others)
wool	between fourth	between fourth	fourth grade	between fourth	between fourth
	and fifth grade	and fifth grade		and fifth grade	and fifth grade
wool/poly-	between fourth	between fourth	fourth grade	between fourth	fourth grade
acrylonitrile	and fifth grade	and fifth grade		and fifth grade
wool/	between fourth	between fourth	between fourth	5th grade	between fourth
polyester	and fifth grade	and fifth grade	and fifth grade	(5 times)	and fifth grade
				4-5th grade
				(others)

TABLE 46
the grade in color fastness to light of a dye
Grade         name of dye
First grade   C.I. Acid Blue 104
Second grade  C.I Acid Blue 109
Third grade   C.I Acid Blue 83
Fourth grade  C.I Acid Blue 121
Fifth grade   C.I Acid Blue 47
Sixth grade   C.I Acid Blue 23
seventh grade C.I. Solubilized Vat Blue 5
              C.I. Solubilized Vat Blue 9
eighth grade  C.I. Solubilized Vat Blue 8
Remark: C.I. represents color index

TABLE 47
the K/S value, the grades of color change and pollution and
Lab values of the dyed fabric of wool before dry-cleaned and
after dry-cleaned with a dry-cleaning solvent
	K/S	the grade of	the grade of
wool	value	color change	pollution	L	a	b	c
before dry-cleaned	22.6	—	—	28.83	36.6	8.46	37.57
after dry-cleaned with propylene glycol methyl ether propionate
one time	24.48	4th	4th-5th	28.06	36.34	8.27	37.27
two times	25.83	3rd-4th	4th-5th	27.25	35.86	8.51	36.86
five times	26.07	3rd-4th	4th-5th	27.08	35.6	8.02	36.49
ten times	23.14	4th	4th-5th	28.3	36.06	8.29	37
twenty times	23.25	4th	4th-5th	28.16	35.89	8.32	36.84
after dry-cleaned with stoddard solvent type I
one time	22.64	4th-5th	4th-5th	28.7	36.4	8.34	37.34
two times	23.82	4th	4th-5th	28.24	36.31	8.38	37.27
five times	23.29	4th	4th-5th	28.36	36.2	8.04	37.08
after dry-cleaned with stoddard solvent type II
one time	22.55	4th	4th-5th	28.61	36.02	8.2	36.94
two times	22.84	4th	4th-5th	28.41	35.88	8.16	36.8
five times	22.04	4th	4th-5th	28.72	35.89	8.15	36.8
after dry-cleaned with perchloroethylene
one time	24.5	3rd-4th	4th-5th	27.38	35.2	8.26	36.16
two times	24.68	3rd-4th	4th-5th	27.47	35.44	8.23	36.39
five times	24.81	3rd-4th	4th-5th	27.19	34.99	7.98	35.89

TABLE 48
the difference of Lab values of the dyed fabric
of wool after dry-cleaned with a dry-cleaning solvent
wool	ΔL	Δa	Δb	Δc	Δh	ΔE	h
after dry-cleaned with propylene glycol methyl ether propionate
one time	−0.77	−0.26	−0.19	−0.3	−0.13	0.83	12.82
two times	−1.58	−0.74	0.05	−0.71	0.22	1.75	13.36
five times	−1.75	0	−0.45	−1.07	−0.21	2.06	12.69
ten times	−0.53	−0.55	−0.18	−0.57	−0.05	0.78	12.94
twenty times	−0.67	−0.71	−0.15	−0.73	0.02	0.99	13.05
after dry-cleaned with stoddard solvent type I
one time	−0.13	−0.2	−0.12	−0.23	−0.07	0.27	12.91
two times	−0.59	−0.29	−0.08	−0.3	−0.01	0.66	13
five times	−0.47	−0.41	−0.42	−0.49	−0.32	0.75	12.53
after dry-cleaned with stoddard solvent type II
one time	−0.22	−0.59	−0.26	−0.63	−0.13	0.68	12.83
two times	−0.42	−0.72	−0.31	−0.77	−0.14	0.89	12.81
five times	−0.11	−0.71	−0.31	−0.76	−0.15	0.79	12.8
after dry-cleaned with perchloroethylene
one time	−1.45	−1.4	−0.2	−1.41	0.12	2.02	3.21
two times	−1.36	−1.16	−0.23	−1.18	0.03	1.8	13.07
five times	−1.64	−1.61	−0.49	−1.68	−0.12	2.35	12.84

TABLE 49
the K/S value, the grades of color change and pollution and
Lab values of the dyed fabric of polyester/rayon before dry-cleaned and
after dry-cleaned with a dry-cleaning solvent
Polyester/	K/S	the grade of	the grade of
rayon	value	color change	pollution	L	a	b	c
before dry-cleaned	18.45	—	—	31.82	43.64	18.11	47.25
after dry-cleaned with propylene glycol methyl ether propionate
one time	18.62	3rd grade	4th-5th grade	33.58	41.08	16.04	44.1
two times	19.27	4th-5th grade	4th-5th grade	31.43	43.68	17.5	47.05
five times	18.33	4th grade	4th-5th grade	32.29	44.12	17.6	17.5
ten times	16.85	3rd-4th grade	4th-5th grade	32.16	42.32	17.17	45.67
twenty times	15.85	3rd-4th grade	4th-5th grade	32.36	41.46	16.71	44.7
after dry-cleaned with stoddard solvent type I
one time	17.36	4th grade	4th-5th grade	32.17	42.96	17.54	46.41
two times	15.79	3rd-4th grade	4th-5th grade	32.99	42.58	16.64	45.72
five times	14.42	3rd grade	4th-5th grade	33.12	40.81	16.23	43.92
after dry-cleaned with stoddard solvent type II
one time	19.11	4th-5th grade	4th-5th grade	31.5	43.34	18.11	46.97
two times	19.05	4th-5th grade	4th-5th grade	31.57	43.38	18.13	47.02
five times	19.03	4th-5th grade	4th-5th grade	31.55	43.36	18.08	46.97
after dry-cleaned with perchloroethylene
one time	19.64	4th-5th grade	4th-5th grade	31.29	43.39	18.11	47.02
two times	19.69	4th-5th grade	4th-5th grade	31.28	43.42	18.03	47.01
five times	19.77	3rd-4th grade	4th-5th grade	31.02	42.89	17.76	42.46

TABLE 50
the difference of Lab values of the dyed fabric
of polyester/rayon after dry-cleaned with a dry-cleaning solvent
polyester/rayon	ΔL	Δa	Δb	Δc	Δh	ΔE	h
after dry-cleaned with propylene glycol methyl ether propionate
one time	1.76	−2.56	−2.07	−3.15	−0.96	3.73	21.33
two times	−0.39	0.04	−0.62	−0.2	−0.58	0.73	21.83
five times	0.47	0.48	−0.52	0.25	−0.66	0.85	21.74
ten times	0.34	−1.32	−0.94	−1.58	−0.37	1.66	22.08
twenty times	0.54	−2.18	−1.4	−2.55	−0.47	2.65	21.95
after dry-cleaned with stoddard solvent type I
one time	0.35	−0.68	−0.57	−0.84	−0.27	0.95	22.21
two times	1.17	−1.06	−1.47	−1.53	−0.97	2.16	21.34
five times	1.3	−2.83	−1.88	−3.33	−0.68	3.64	21.69
after dry-cleaned with stoddard solvent type II
one time	−0.32	−0.3	−0	−0.28	0.12	0.44	22.68
two times	−0.25	−0.26	0.02	−0.24	0.11	0.36	22.68
five times	−0.27	−0.28	−0.04	−0.28	0.08	0.39	22.63
after dry-cleaned with perchloroethylene
one time	−0.53	−0.25	−0.01	−0.23	0.09	0.58	22.65
two times	−0.54	−0.22	−0.08	−0.24	0.01	0.58	22.55
five times	−0.8	−0.75	−0.35	−0.83	−0.03	1.15	22.5

TABLE 51
the K/S value, the grades of color change and pollution and Lab values of the
dyed fabric of nylon before dry-cleaned and after dry-cleaned with a dry-cleaning solvent
	K/S	the grade of	the grade of
nylon	value	color change	pollution	L	a	b	c
before dry-cleaned	13.22	—	—	42.38	54.44	24.61	59.75
after dry-cleaned with propylene glycol methyl ether propionate
one time	13.36	3rd-4th grade	4th-5th grade	41.55	55.1	25.24	60.61
two times	13.24	3rd grade	4th-5th grade	40.86	52.47	22.83	57.22
five times	13.21	3rd-4th grade	4th-5th grade	42.31	53.73	22.14	58.3
ten times	13.29	3rd-4th grade	4th-5th grade	41.47	53.71	25.12	59.29
twenty times	13.03	3rd-4th grade	4th-5th grade	43.9	55.27	25.36	60.8
after dry-cleaned with stoddard solvent type I
one time	13.1	4th-5th grade	4th-5th grade	42.7	54.75	24.05	59.63
two times	13.15	3rd-4th grade	4th-5th grade	43.28	54.96	24.51	60.18
five times	12.86	3rd-4th grade	4th-5th grade	43.36	54.75	24.01	59.78
after dry-cleaned with stoddard solvent type II
one time	12.96	1st-2nd grade	3rd-4th grade	40.37	49.1	20.26	53.11
two times	13	2nd grade	3rd-4th grade	40.39	49.08	20.53	53.2
five times	12.88	2nd-3rd grade	3rd-4th grade	41.09	49.63	21.79	54.2
after dry-cleaned with perchloroethylene
one time	13.08	1st-2nd grade	3rd grade	39.91	48.74	19.9	52.64
two times	13.01	2nd grade	3rd-4th grade	40.35	49.36	20.44	53.43
five times	13.02	2nd grade	33rd-4th grade	40.65	49.61	21.08	53.9

TABLE 52
the difference of Lab values of the dyed fabric of
nylon after dry-cleaned with a dry-cleaning solvent
nylon	ΔL	Δa	Δb	Δc	Δh	ΔE	h
after dry-cleaned with propylene glycol methyl ether propionate
one time	−0.83	0.66	−0.64	0.86	0.31	1.24	24.61
two times	−1.52	−1.97	−1.78	−2.53	−0.83	3.06	23.51
five times	−0.08	−0.71	−1.97	−1.44	−1.52	2.09	22.85
ten times	−0.91	−0.73	0.51	−0.45	0.77	1.28	25.06
twenty times	1.52	0.82	0.75	1.06	0.34	1.88	24.65
after dry-cleaned with stoddard solvent type I
one time	0.32	0.13	−0.56	−0.11	−0.57	0.66	23.78
two times	0.9	0.52	−0.1	0.44	−0.31	1.04	24.03
five times	0.98	0.31	−0.6	0.04	−0.68	1.19	23.68
after dry-cleaned with stoddard solvent type II
one time	−2.02	−5.34	−4.53	−6.63	−1.87	7.18	22.42
two times	−1.99	−5.37	−4.08	−6.55	−1.59	7.03	22.7
five times	−1.29	−4.81	−2.82	−5.54	−0.62	5.73	23.7
after dry-cleaned with perchloroethylene
one time	−2.47	−5.71	−4.71	−7.1	−2.07	7.8	22.21
two times	−2.03	−5.08	−4.17	−6.32	−1.8	6.88	22.49
five times	−1.74	−4.84	−3.53	−5.85	−1.29	6.23	23.03

TABLE 53
the K/S value, the grades of color change and pollution and Lab values of
the dyed fabric of polyester/cotton before dry-cleaned and
after dry-cleaned with a dry-cleaning solvent
polyester/	K/S	the grade of	the grade of
cotton	value	color change	pollution	L	a	b	c
before dry-cleaned	0.23	—	—	82.9	−7.22	0.79	7.26
after dry-cleaned with propylene glycol methyl ether propionate
one time	0.2	3rd grade	4th-5th grade	85.35	−9.35	1.25	9.44
two times	0.25	3rd grade	4th-5th grade	80.35	−6.13	−0.32	6.14
five times	0.24	3rd-4th grade	4th-5th grade	81.43	−6.7	−0.29	6.71
ten times	0.22	4th-5th grade	4th-5th grade	82.96	−7	0.52	7.02
twenty times	0.22	4th grade	4th-5th grade	82.47	−6.57	0.69	6.61
after dry-cleaned with stoddard solvent type I
one time	0.22	4th-5th grade	4th-5th grade	82.96	−7.02	0.45	7.04
two times	0.23	4th grade	4th-5th grade	82.25	−6.66	0.32	6.67
five times	0.22	4th-5th grade	4th-5th grade	82.84	−6.82	0.61	6.85
after dry-cleaned with stoddard solvent type II
one time	0.36	1st-2nd grade	3rd-4th grade	75.73	−4.21	−0.32	4.22
two times	0.36	1st-2nd grade	3rd-4th grade	75.72	−4.19	−0.38	4.2
five times	0.34	2nd grade	3rd-4th grade	76.37	−4.25	−0.34	4.26
after dry-cleaned with perchloroethylene
one time	0.37	1st-2nd grade	3rd grade	75	−3.9	−0.02	3.9
two times	0.38	1st-2nd grade	3rd grade	74.63	−3.96	0.14	3.96
five times	0.37	1st-2nd grade	3rd grade	74.82	−3.8	0.11	3.81

TABLE 54
the difference of Lab values of the dyed fabric of polyester/cotton
after dry-cleaned with a dry-cleaning solvent
polyester/cotton	ΔL	Δa	Δb	Δc	Δh	ΔE	h
after dry-cleaned with propylene glycol methyl ether propionate
one time	2.54	−2.13	0.46	2.17	−0.2	3.28	172.38
two times	−2.55	1.09	−1.11	−1.13	1.08	2.99	183.01
five times	−1.47	0.52	−1.08	−0.56	1.06	1.9	182.47
ten times	0.06	0.22	−0.28	−0.25	0.25	0.36	175.79
twenty times	−0.43	0.65	−0.1	−0.66	0.03	0.78	174
after dry-cleaned with stoddard solvent type I
one time	0.06	0.2	−0.34	−0.23	0.32	0.4	176.34
two times	−0.65	0.56	−0.48	−0.6	0.43	0.99	177.28
five times	−0.06	0.4	−0.18	−0.41	0.14	0.44	174.88
after dry-cleaned with stoddard solvent type II
one time	−7.17	3.01	−1.11	−3.04	1.02	7.86	184.37
two times	−7.18	3.04	−1.18	−3.06	1.11	7.89	185.24
five times	−6.53	2.97	−1.13	−3	1.05	7.27	184.57
after dry-cleaned with perchloroethylene
one time	−7.9	3.32	−0.81	−3.37	0.6	8.61	180.23
two times	−8.27	3.27	−0.65	−3.31	0.39	8.91	177.93
five times	−8.08	3.42	−0.68	−3.46	0.42	8.8	178.32

TABLE 55
the K/S value, the grades of color change and pollution and Lab values of the dyed
fabric of cotton before dry-cleaned and after dry-cleaned with a dry-cleaning solvent
	K/S	the grade of	the grade of
cotton	value	color change	pollution	L	a	b	c
before dry-	21.73	—	—	32.96	40.02	16.74	43.38
cleaned
after dry-cleaned with propylene glycol methyl ether propionate
one time	21.24	4th-5th grade	4th-5th grade	32.81	39.75	16.87	43.18
two times	22.55	4th grade	4th-5th grade	32.38	39.62	17	43.12
five times	22.01	4th-5th grade	4th-5th grade	32.61	39.72	16.79	43.12
ten times	21.29	4th-5th grade	4th-5th grade	33.02	39.42	16.64	42.79
twenty times	21.24	4th-5th grade	4th-5th grade	33.22	39.87	16.27	43.06
after dry-cleaned with stoddard solvent type I
one time	21.77	4th-5th grade	4th-5th grade	32.88	39.68	16.75	43.07
two times	21.82	4th-5th grade	4th-5th grade	32.71	39.61	16.34	42.84
five times	21.63	4th-5th grade	4th-5th grade	32.93	39.82	16.51	43.11
after dry-cleaned with stoddard solvent type II
one time	20.89	4th grade	4th-5th grade	32.89	39.37	16.24	42.59
two times	20.74	4th grade	4th-5th grade	32.96	39.48	16.4	42.75
five times	21.12	4th grade	4th-5th grade	32.81	39.36	16.32	42.61
after dry-cleaned with perchloroethylene
one time	21.01	4th grade	4th-5th grade	32.69	39.3	16.8	42.74
two times	21.57	3rd-4th grade	4th-5th grade	32.33	38.95	16.63	42.35
five times	21.84	3rd-4th grade	4th-5th grade	32.06	38.54	16.56	41.95

TABLE 56
the differences of the Lab values of the dyed fabric of
cotton after dry-cleaned with a dry-cleaning solvent
cotton	ΔL	Δa	Δb	Δc	Δh	ΔE	h
after dry-cleaned with propylene glycol methyl ether propionate
one time	−0.14	−0.27	0.13	−0.2	0.22	0.33	23
two times	−0.58	−0.39	0.26	−0.26	0.39	0.74	23.22
five times	−0.34	−0.3	0.05	−0.25	0.16	0.46	22.91
ten times	0.06	−0.6	−0.11	−0.59	0.13	0.61	22.88
twenty times	0.27	−0.15	−0.48	−0.32	−0.38	0.56	22.19
after dry-cleaned with stoddard solvent type I
one time	−0.07	−0.33	0.01	−0.3	0.14	0.34	22.88
two times	−0.25	−0.41	−0.4	−0.53	−0.21	0.63	22.42
five times	−0.02	−0.19	−0.23	−0.27	−0.14	0.3	22.52
after dry-cleaned with stoddard solvent type II
one time	−0.07	−0.64	−0.51	−0.79	−0.22	0.82	22.41
two times	0	−0.54	−0.34	−0.62	−0.11	0.63	22.56
five times	−0.15	−0.66	−0.42	0.77	−0.13	0.8	22.52
after dry-cleaned with perchloroethylene
one time	−0.27	−0.72	0.06	−0.64	0.33	0.77	23.14
two times	−0.63	−1.07	−0.11	−1.03	0.31	1.25	23.12
five times	−0.9	−1.47	−0.18	−1.43	0.41	1.73	23.25

TABLE 57
the K/S value, the grades of color change and pollution and the Lab values of the dyed fabric
of wool/polyacrylonitrile before dry-cleaned and after dry-cleaned with a dry-cleaning solvent
	K/S	the grade of	the grade of
wool/polyacrylonitrile	value	color change	` pollution	L	a	b	c
before dry-cleaned	15.17	—	—	38.69	−11.67	31.85	33.92
after dry-cleaned with propylene glycol methyl ether propionate
one time	14.42	fourth grade	fourth to	39	−11.48	−32.51	34.47
			fifth grade
two times	15.46	fourth grade	fourth to	38.12	−11.25	−31.76	33.7
			fifth grade
five times	14.52	third to fourth	fourth to	39.33	−11.43	−32.84	34.77
		grade	fifth grade
ten times	14.2	fourth grade	fourth to	39.4	−11.47	−32.48	34.44
			fifth grade
twenty times	13.93	fourth grade	fourth to	39.13	−11.28	−32.42	34.33
			fifth grade
after dry-cleaned with stoddard solvent type I
one time	14.18	third to fourth	fourth to	39.79	−11.91	−32.35	34.47
		grade	fifth grade
two times	13.85	fourth grade	fourth to	39.46	−11.33	−32.5	34.41
			fifth grade
five times	14.53	fourth grade	fourth to	39.33	−11.65	−32.36	34.39
			fifth grade
after dry-cleaned with stoddard solvent type II
one time	14.18	fourth grade	fourth to	39.41	−11.9	−31.68	33.85
			fifth grade
two times	13.92	third to fourth	fourth to	39.62	−12.05	−31.42	33.65
		grade	fifth grade
five times	13.62	third to fourth	fourth to	39.71	−11.74	−31.86	33.96
		grade	fifth grade
after dry-cleaned with perchloroethylene
one time	14.8	fourth grade	fourth to	38.84	−11.95	−31.12	33.34
			fifth grade
two times	15.05	fourth to fifth	fourth to	38.77	−11.93	−31.43	33.62
		grade	fifth grade
five times	15.02	fourth grade	fourth to	38.4	−11.76	−30.89	33.05
			fifth grade

TABLE 58
the differences of the Lab values of the dyed fabric of
wool/polyacrylonitrile after dry-cleaned with a dry-cleaning solvent
wool/
polyacrylonitrile	ΔL	Δa	Δb	Δc	Δh	ΔE	h
after dry-cleaned with propylene glycol methyl ether propionate
one time	0.31	0.19	−0.66	0.55	0.4	0.75	250.54
two times	−0.57	0.42	0.09	−0.22	0.36	0.71	250.49
five times	0.63	0.25	−0.99	0.85	0.56	1.2	250.82
ten times	0.71	0.2	−0.63	0.52	0.4	0.97	250.54
twenty times	0.44	0.4	−0.57	0.41	0.56	0.82	250.82
after dry-cleaned with stoddard solvent type I
one time	1.09	−0.24	−0.5	0.55	−0.05	1.23	249.79
two times	0.77	0.34	−0.65	0.5	0.54	1.06	250.78
five times	0.64	0.02	−0.51	0.47	0.19	0.82	250.19
after dry-cleaned with stoddard solvent type II
one time	0.71	−0.23	0.17	−0.07	−0.28	0.77	249.41
two times	0.93	−0.38	0.43	−0.27	−0.51	1.09	249.01
five times	1.02	−0.07	−0.01	0.04	−0.06	1.02	249.77
after dry-cleaned with perchloroethylene
one time	0.15	−0.28	0.73	−0.58	−0.52	0.8	248.99
two times	0.08	−0.25	0.42	−0.3	−0.38	0.49	249.22
five times	−0.29	−0.09	0.96	−0.87	−0.42	1	249.16

TABLE 59
the K/S value, the grades of color change and pollution and the Lab values of the dyed fabric
of wool/polyester before dry-cleaned and after dry-cleaned with a dry-cleaning solvent
	K/S	the grade of	the grade of
wool/polyester	value	color change	pollution	L	a	b	c
before dry-cleaned	16.6	—	—	23.33	11.71	−12.97	17.48
after dry-cleaned with propylene glycol methyl ether propionate
one time	16.61	fourth to	fourth to	23.29	11.46	−12.92	17.27
		fifth grade	fifth grade
two times	17.07	fourth to	fourth to	22.92	11.31	−12.85	17.11
		fifth grade	fifth grade
five times	16.73	fourth to	fourth to	23.15	11.14	−12.92	17.06
		fifth grade	fifth grade
ten times	16.08	fourth to	fourth to	23.64	11.57	−12.83	17.27
		fifth grade	fifth grade
twenty times	15.94	fourth to	fourth to	23.7	11.47	−12.75	17.15
		fifth grade	fifth grade
after dry-cleaned with stoddard solvent type I
one time	16.37	fourth to	fourth to	23.37	11.32	−12.84	17.12
		fifth grade	fifth grade
two times	16.07	fourth to	fourth to	23.67	11.41	−12.97	17.28
		fifth grade	fifth grade
five times	16.32	fourth to	fourth to	23.52	11.58	−13	17.41
		fifth grade	fifth grade
after dry-cleaned with stoddard solvent type II
one time	15.83	fourth grade	fourth to	23.82	11.34	−12.82	17.11
			fifth grade
two times	16.1	fourth grade	fourth to	23.49	10.72	−12.79	16.69
			fifth grade
five times	15.75	fourth grade	fourth to	23.75	10.81	−12.75	16.69
			fifth grade
after dry-cleaned with perchloroethylene
one time	16.4	third to	fourth to	23.19	10.58	−12.61	16.46
		fourth grade	fifth grade
two times	16.2	fourth grade	first to	23.45	11.18	−12.56	16.82
			fifth grade
five times	16.06	fourth grade	fourth to	23.59	11.28	−12.54	16.87
			fifth grade

TABLE 60
the differences of the Lab values of the dyed fabric of
wool/polyester after dry-cleaned with a dry-cleaning solvent
wool/polyester	ΔL	Δa	Δb	Δc	Δh	ΔE	h
after dry-cleaned with propylene glycol methyl ether propionate
one time	−0.04	−0.25	0.05	−0.2	−0.16	0.26	311.56
two times	−0.42	−0.4	0.13	−0.36	−0.22	0.59	311.36
five times	−0.18	−0.57	0.05	−0.41	−0.4	0.6	310.76
ten times	0.3	−0.14	0.14	−0.2	−0.01	0.37	312.05
twenty times	0.36	−0.24	0.22	−0.33	−0.03	0.49	311.97
after dry-cleaned with stoddard solvent type I
one time	0.04	−0.39	0.14	−0.36	−0.2	0.41	311.42
two times	0.34	−0.3	0	−0.2	−0.22	0.45	311.35
five times	0.19	−0.13	−0.02	−0.07	−0.11	0.23	311.7
after dry-cleaned with stoddard solvent type II
one time	0.49	−0.37	0.15	−0.36	−0.18	0.63	311.49
two times	0.16	−1	0.18	−0.79	−0.63	1.02	309.96
five times	0.42	−0.91	0.25	−0.78	−0.52	1.03	310.34
after dry-cleaned with perchloroethylene
one time	−0.14	−1.14	0.36	−1.02	−0.62	1.2	309.99
two times	0.12	−0.53	0.41	−0.66	−0.12	0.68	311.68
five times	0.26	−0.44	0.43	−0.61	−0.04	0.67	311.95

TABLE 61
the K/S value, the grades of color change and pollution and
the Lab values of the dyed fabric of polyester before
dry-cleaned and after dry-cleaned with a dry-cleaning solvent
		the grade	the grade
	K/S	of color	of
polyester	value	change	pollution	L	a	b	c
before	17.86	—	—	31.18	8.68	−43.6	44.46
dry-cleaned
after dry-cleaned with propylene glycol methyl ether propionate
one time	8.97	first grade	first grade	32.86	23.48	−4.37	23.88
two times	9.09	first grade	first grade	32.7	23.53	−4.39	23.94
five times	8.74	first grade	first grade	33.19	23.41	−4.38	23.81
ten times	8.92	first grade	first grade	33	23.63	−4.1	23.98
twenty times	8.74	first grade	first grade	33.2	23.46	−4.17	23.83
after dry-cleaned with stoddard solvent type I
one time	8.88	first grade	first grade	33.05	23.62	−4.2	23.99
two times	8.62	first grade	first grade	33.41	23.52	−4.38	23.93
five times	8.96	first grade	first grade	32.88	23.41	−4.15	23.77
after dry-cleaned with stoddard solvent type II
one time	8.78	first grade	first grade	33.04	23.06	−4.25	23.45
two times	8.8	first grade	first grade	33.03	23.06	−4.22	23.44
five times	8.56	first grade	first grade	33.47	23.3	−4.14	23.67
after dry-cleaned with perchloroethylene
one time	9.17	first grade	first grade	32.45	22.92	−4.26	23.31
two times	9.09	first grade	first grade	32.54	22.85	−4.05	23.21
five times	9.16	first grade	first grade	32.45	22.84	−4.12	23.21

TABLE 62
the differences of the Lab values of the dyed fabric of polyester after
dry-cleaned with a dry-cleaning solvent
polyester	ΔL	Δa	Δb	Δc	Δh	ΔE	h
after dry-cleaned with propylene glycol methyl ether propionate
one time	1.68	14.79	39.24	−20.58	36.54	41.97	349.46
two times	1.53	14.85	39.21	−20.52	36.56	41.96	349.43
five times	2.01	14.72	39.22	−20.65	36.46	41.94	349.4
ten times	1.82	14.94	39.5	−20.48	36.94	42.27	350.15
twenty times	2.03	14.78	39.44	−20.63	36.72	42.16	349.93
after dry-cleaned with stoddard solvent type I
one time	1.87	14.94	39.4	−20.47	36.84	42.18	349.92
two times	2.23	14.84	39.22	−20.53	36.56	41.99	349.44
five times	1.7	14.72	39.46	−20.69	36.68	42.15	349.95
after dry-cleaned with stoddard solvent type II
one time	1.86	14.37	39.35	−21.01	36.24	41.94	349.55
two times	1.85	14.38	39.39	−21.02	36.28	41.97	349.64
five times	2.29	14.62	39.46	−20.79	36.59	42.15	349.93
after dry-cleaned with perchloroethylene
one time	1.27	14.23	39.34	−21.15	36.1	41.86	349.46
two times	1.37	14.17	39.56	−21.25	36.25	42.04	349.96
five times	1.27	14.16	39.48	−21.25	36.16	41.96	349.77

TABLE 63
the K/S value, the grades of color change and pollution and the Lab values of
the dyed fabric of nylon/polyacrylonitrile before dry-cleaned and
after dry-cleaned with a dry-cleaning solvent
	K/S	the grade of	the grade
nylon/polyacrylonitrile	value	color change	of pollution	L	a	b	c
before dry-cleaned	25.2	—	—	16.93	−0.63	−5.08	5.11
after dry-cleaned with propylene glycol methyl ether propionate
one time	24.57	fourth to fifth	fourth to	17.28	−0.65	−5.26	5.3
		grade	fifth grade
two times	26.3	fourth to fifth	fourth to	16.41	−0.49	−4.81	4.83
		grade	fifth grade
five times	25.18	fifth grade	fifth grade	16.91	−0.64	−4.91	4.96
ten times	26.75	fourth grade	fourth to	16.08	−0.11	−4.89	4.89
			fifth grade
twenty times	25.96	fourth to fifth	fourth to	16.5	−0.19	−5.18	5.18
		grade	fifth grade
after dry-cleaned with stoddard solvent type I
one time	27.73	third to fourth	fourth to	15.86	−0.33	−4.81	4.83
		grade	fifth grade
two times	28.39	third to fourth	fourth to	15.76	−0.17	−5.27	5.82
		grade	fifth grade
five times	27.22	fourth grade	fourth to	16.11	−0.38	−4.97	4.99
			fifth grade
after dry-cleaned with stoddard solvent type II
one time	27.69	fourth grade	fourth to	16.01	−0.56	−5.29	5.32
			fifth grade
two times	27.85	third to fourth	fourth to	15.99	−0.53	−5.44	5.47
		grade	fifth grade
five times	27.05	fourth to fifth	fourth to	16.37	−0.73	−5.17	5.22
		grade	fifth grade
after dry-cleaned with perchloroethylene
one time	29.41	third to fourth	fourth to	15.42	−0.57	−4.98	5.01
		grade	fifth grade
two times	30.35	third to fourth	fourth to	15.09	−0.6	−4.96	4.99
		grade	fifth grade
five times	30.35	third to fourth	fourth to	14.96	−0.39	−4.81	4.83
		grade	fifth grade

TABLE 64
the differences of the Lab values of the dyed fabric of
nylon/polyacrylonitrile after dry-cleaned with a dry-cleaning solvent
nylon/
polyacrylonitrile	ΔL	Δa	Δb	Δc	Δh	ΔE	h
after dry-cleaned with propylene glycol methyl ether propionate
one time	0.34	−0.02	−0.19	0.19	0	0.39	262.95
two times	−0.52	0.15	0.27	−0.28	0.11	0.61	264.24
five times	−0.02	−0.01	0.16	−0.16	−0.03	0.16	262.56
ten times	−0.85	0.52	0.19	−0.23	0.5	1.01	268.67
twenty times	−0.44	0.54	−0.1	0.07	0.55	0.7	269
after dry-cleaned with stoddard solvent type I
one time	−1.07	0.3	0.26	−0.29	0.27	1.14	266.04
two times	−1.18	0.46	−0.2	0.16	0.47	0.28	268.15
five times	−0.83	0.25	0.1	−0.13	0.24	0.87	265.66
after dry-cleaned with stoddard solvent type II
one time	−0.92	0.08	−0.22	0.21	0.1	0.95	264.01
two times	−0.94	0.1	−0.36	0.35	0.14	1.02	264.42
five times	−0.56	−0.1	−0.09	0.1	−0.09	0.58	261.92
after dry-cleaned with perchloroethylene
one time	−1.51	0.07	0.1	−0.1	0.05	1.51	263.52
two times	−1.85	0.04	0.12	−0.12	0.02	1.85	263.15
five times	−1.97	0.24	0.27	−0.29	0.21	2	265.36

TABLE 65
the grade of the color fastness to abrasion of the dyed fabric of wool/
polyester before dry-cleaned and after dry-cleaned with a dry-cleaning
solvent
	the grade of the color fastness to abrasion
wool/polyester	before the test	after the test
before dry-cleaned	fourth grade	fourth to fifth grade
after dry-cleaned with propylene glycol methyl ether propionate
one time	fourth grade	fourth to fifth grade
two times	fourth grade	fourth to fifth grade
five times	fourth grade	fourth to fifth grade
ten times	fourth grade	fourth to fifth grade
twenty times	fourth to fifth grade	fourth to fifth grade
after dry-cleaned with stoddard solvent type I
one time	fourth grade	fourth to fifth grade
two times	fourth grade	fourth to fifth grade
five times	fourth to fifth grade	fourth to fifth grade
after dry-cleaned with stoddard solvent type II
one time	fourth to fifth grade	fourth to fifth grade
two times	fourth to fifth grade	fourth to fifth grade
five times	fourth to fifth grade	fourth to fifth grade
after dry-cleaned with perchloroethylene
one time	fourth grade	fourth to fifth grade
two times	fourth to fifth grade	fourth to fifth grade
five times	fourth to fifth grade	fourth to fifth grade

TABLE 66
the grade of the color fastness to abrasion of the dyed fabric of wool
before dry-cleaned and after dry-cleaned with a dry-cleaning solvent
	the grade of the color fastness to abrasion
wool	before the test	after the test
before dry-cleaned	fourth to fifth grade	fourth to fifth grade
after dry-cleaned with propylene glycol methyl ether propionate
one time	fourth grade	fourth to fifth grade
two times	fourth to fifth grade	fourth to fifth grade
five times	fourth to fifth grade	fourth to fifth grade
ten times	fourth to fifth grade	fourth to fifth grade
twenty times	fourth to fifth grade	fourth to fifth grade
after dry-cleaned with stoddard solvent type I
one time	fourth to fifth grade	fourth to fifth grade
two times	fourth to fifth grade	fourth to fifth grade
five times	fourth to fifth grade	fourth to fifth grade
after dry-cleaned with stoddard solvent type II
one time	fourth grade	fourth grade
two times	fourth grade	third to fourth grade
five times	fourth grade	fourth to fifth grade
after dry-cleaned with perchloroethylene
one time	fourth to fifth grade	fourth to fifth grade
two times	fourth to fifth grade	fourth to fifth grade
five times	fourth to fifth grade	fourth to fifth grade

TABLE 67
the grade of the color fastness to abrasion of the dyed fabric of
wool/polyacrylonitrile before dry-cleaned and after dry-cleaned with a
dry-cleaning solvent
	the grade of the color fastness to abrasion
wool/polyacrylonitrile	before the test	after the test
before dry cleaned	fourth to fifth grade	fourth to fifth grade
after dry-cleaned with propylene glycol methyl ether propionate
one time	fourth grade	fourth to fifth grade
two times	fourth to fifth grade	fourth to fifth grade
five times	fourth to fifth grade	fourth to fifth grade
ten times	fourth to fifth grade	fourth to fifth grade
twenty times	fourth to fifth grade	fourth to fifth grade
after dry-cleaned with stoddard solvent type I
one time	fourth to fifth grade	fourth to fifth grade
two times	fourth to fifth grade	fourth to fifth grade
five times	fourth to fifth grade	fourth to fifth grade
after dry-cleaned with stoddard solvent type II
one time	fourth to fifth grade	fourth to fifth grade
two times	fourth to fifth grade	fourth to fifth grade
five times	fourth to fifth grade	fourth to fifth grade
after dry-cleaned with perchloroethylene
one time	fourth to fifth grade	fourth to fifth grade
two times	fourth to fifth grade	fourth to fifth grade
five times	fourth to fifth grade	fourth to fifth grade

TABLE 68
the grade of the color fastness to abrasion of the dyed fabric of polyester
before dry-cleaned and after dry-cleaned with a dry-cleaning solvent
	the grade of the color fastness to abrasion
polyester	before the test	after the test
before dry-cleaned	fourth to fifth grade	fourth to fifth grade
after dry-cleaned with propylene glycol methyl ether propionate
one time	fourth to fifth grade	fourth to fifth grade
two times	fourth to fifth grade	fourth to fifth grade
five times	fourth to fifth grade	fourth to fifth grade
ten times	fourth to fifth grade	fourth to fifth grade
twenty times	fourth to fifth grade	fourth to fifth grade
after dry-cleaned with stoddard solvent type I
one time	fourth to fifth grade	fourth to fifth grade
two times	fourth to fifth grade	fourth to fifth grade
five times	fourth to fifth grade	fourth to fifth grade
after dry-cleaned with stoddard solvent type II
one time	fourth to fifth grade	fourth to fifth grade
two times	fourth to fifth grade	fourth to fifth grade
five times	fourth to fifth grade	fourth to fifth grade
after dry-cleaned with perchloroethylene
one time	fourth to fifth grade	fourth to fifth grade
two times	fourth to fifth grade	fourth to fifth grade
five times	fourth to fifth grade	fourth to fifth grade

TABLE 69
the grade of the color fastness to abrasion of the dyed fabric of polyester/
rayon before dry-cleaned and after dry-cleaned with a dry-cleaning solvent
	the grade of the color fastness to abrasion
polyester/rayon	before the test	after the test
before dry-cleaned	fourth to fifth grade	fourth to fifth grade
after dry-cleaned with propylene glycol methyl ether propionate
one time	fourth to fifth grade	fourth to fifth grade
two times	fourth to fifth grade	fourth to fifth grade
five times	fourth to fifth grade	fourth to fifth grade
ten times	fourth to fifth grade	fourth to fifth grade
twenty times	fourth to fifth grade	fourth to fifth grade
after dry-cleaned with stoddard solvent type I
one time	fourth to fifth grade	fourth to fifth grade
two times	fourth to fifth grade	fourth to fifth grade
five times	fourth to fifth grade	fourth to fifth grade
after dry-cleaned with stoddard solvent type II
one time	fourth to fifth grade	fourth to fifth grade
two times	fourth grade	fourth to fifth grade
five times	fourth to fifth grade	fourth to fifth grade
after dry-cleaned with perchloroethylene
one time	fourth to fifth grade	fourth to fifth grade
two times	fourth to fifth grade	fourth to fifth grade
five times	fourth to fifth grade	fourth to fifth grade

TABLE 70
the grade of the color fastness to abrasion of the dyed fabric of
nylon/polyacrylonitrile before dry-cleaned and after dry-cleaned with a
dry-cleaning solvent
	the grade of the color fastness to abrasion
nylon/polyacrylonitrile	before the test	after the test
before dry-cleaned	fourth to fifth grade	fourth to fifth grade
after dry-cleaned with propylene glycol methyl ether propionate
one time	fourth to fifth grade	fourth to fifth grade
two times	fourth to fifth grade	fourth to fifth grade
five times	fourth to fifth grade	fourth to fifth grade
ten times	fourth grade	fourth to fifth grade
twenty times	fourth to fifth grade	fourth to fifth grade
after dry-cleaned with stoddard solvent type I
one time	fourth to fifth grade	fourth to fifth grade
two times	fourth to fifth grade	fourth to fifth grade
five times	fourth to fifth grade	fourth to fifth grade
after dry-cleaned with stoddard solvent type II
one time	fourth to fifth grade	fourth to fifth grade
two times	fourth to fifth grade	fourth to fifth grade
five times	fourth to fifth grade	fourth to fifth grade
after dry-cleaned with perchloroethylene
one time	fourth to fifth grade	fourth to fifth grade
two times	fourth to fifth grade	fourth to fifth grade
five times	fourth to fifth grade	fourth to fifth grade

TABLE 71
the grade of the color fastness to abrasion of the dyed fabric of
polyester/cotton before dry-cleaned and after dry-cleaned with a
dry-cleaning solvent
	the grade of the color fastness to abrasion
polyester/cotton	before the test	after the test
before dry-cleaned	fourth to fifth grade	fourth to fifth grade
after dry-cleaned with propylene glycol methyl ether propionate
one time	fourth grade	fourth to fifth grade
two times	fourth to fifth grade	fourth to fifth grade
five times	fourth to fifth grade	fourth to fifth grade
ten times	fourth to fifth grade	fourth to fifth grade
twenty times	fourth to fifth grade	fourth to fifth grade
after dry-cleaned with stoddard solvent type I
one time	fourth to fifth grade	fourth to fifth grade
two times	fourth to fifth grade	fourth to fifth grade
five times	fourth to fifth grade	fourth to fifth grade
after dry-cleaned with stoddard solvent type II
one time	fourth to fifth grade	fourth to fifth grade
two times	fourth to fifth grade	fourth to fifth grade
five times	fourth to fifth grade	fourth to fifth grade
after dry-cleaned with perchloroethylene
one time	fourth to fifth grade	fourth to fifth grade
two times	fourth to fifth grade	fourth to fifth grade
five times	fourth to fifth grade	fourth to fifth grade

TABLE 72
the grade of the color fastness to abrasion of the dyed fabric of cotton
before dry-cleaned and after dry-cleaned with a dry-cleaning solvent
	the grade of the color fastness to abrasion
cotton	before the test	after the test
before dry-cleaned	fourth to fifth grade	fourth to fifth grade
after dry-cleaned with propylene glycol methyl ether propionate
one time	fourth grade	fourth grade
two times	fourth to fifth grade	fourth to fifth grade
five times	fourth to fifth grade	fourth to fifth grade
ten times	fourth to fifth grade	fourth to fifth grade
twenty times	fourth to fifth grade	fourth to fifth grade
after dry-cleaned with stoddard solvent: type I
one time	fourth to fifth grade	fourth to fifth grade
two times	fourth to fifth grade	fourth to fifth grade
five times	fourth to fifth grade	fourth to fifth grade
after dry-cleaned with stoddard solvent type II
one time	fourth to fifth grade	fourth to fifth grade
two times	fourth to fifth grade	fourth to fifth grade
five times	fourth to fifth grade	fourth to fifth grade
after dry-cleaned with perchloroethylene
one time	fourth to fifth grade	fourth to fifth grade
two times	fourth to fifth grade	fourth to fifth grade
five times	fourth to fifth grade	fourth to fifth grade

TABLE 73
the grade of the color fastness to abrasion of the dyed fabric of nylon
before dry-cleaned and after dry-cleaned with a dry-cleaning solvent
	the grade of the color fastness to abrasion
nylon	before the test	after the test
before dry-cleaned	fourth to fifth grade	fourth to fifth grade
after dry-cleaned with propylene glycol methyl ether propionate
one time	fourth to fifth grade	fourth to fifth grade
two times	fourth to fifth grade	fourth to fifth grade
five times	fourth to fifth grade	fourth to fifth grade
ten times	fourth to fifth grade	fourth to fifth grade
twenty times	fourth to fifth grade	fourth to fifth grade
after dry-cleaned with stoddard solvent type I
one time	fourth to fifth grade	fourth to fifth grade
two times	fourth to fifth grade	fourth to fifth grade
five times	fourth to fifth grade	fourth to fifth grade
after dry-cleaned with stoddard solvent type II
one time	fourth to fifth grade	fourth to fifth grade
two times	fourth to fifth grade	fourth to fifth grade
five times	fourth to fifth grade	fourth to fifth grade
after dry-cleaned with perchloroethylene
one time	fourth to fifth grade	fourth to fifth grade
two times	fourth to fifth grade	fourth to fifth grade
five times	fourth to fifth grade	fourth to fifth grade

TABLE 74
the yellowness index, the whiteness index and the Lab values of gray
nylon goods before dry-cleaned and after dry-cleaned with a dry-cleaning
solvent
gray	the	the
nylon	yellowness	whiteness
goods	index	index	L	a	b	c
before	−15.75	108.11	85.51	−0.01	−6.99	6.99
dry-cleaning
after dry-cleaned with propylene glycol methyl ether propionate
one time	−18.33	90.1	78.7	0.28	−7.71	7.72
two times	−18.79	91.13	78.73	0.35	−7.91	7.92
five times	−17.68	89.31	78.81	0.36	−7.51	7.52
after dry-cleaned with stoddard solvent type I
one time	−18.46	89.55	78.5	0.16	−7.69	7.7
two times	−18.56	89.27	78.31	0.23	−7.76	7.76
five times	−17.77	88.65	78.57	0.25	−7.48	7.49
after dry-cleaned with stoddard solvent type II
one time	−18.88	88.85	77.97	0.18	−7.81	7.82
two times	−18.25	90.71	78.97	0.31	−7.73	7.74
five times	−18.2	88.45	78.2	0.29	−7.64	7.65
after dry-cleaned with perchloroethylene
one time	−17.84	86.79	77.88	0.21	−7.42	7.43
two times	−17.15	88.32	78.9	0.15	−7.2	7.21
five times	−17.75	87.15	78.04	0.25	−7.41	7.42

TABLE 75
the differences of the Lab values of gray nylon goods after
dry-cleaned with a dry-cleaning solvent
gray nylon goods	ΔL	Δa	Δb	Δc	Δh	ΔE	h
after dry-cleaned with propylene glycol methyl ether propionate
one time	−7.81	0.29	−0.73	0.73	0.28	7.85	272.05
two times	−7.78	0.36	−0.93	6.94	0.34	7.85	272.55
five times	−7.71	0.37	−0.52	0.53	0.36	7.73	272.71
after dry-cleaned with stoddard solvent type I
one time	−8.01	0.08	0.71	0.71	0.17	8.05	271.13
two times	−8.21	0.25	−0.07	0.77	0.23	8.25	271.72
five times	−7.95	0.27	−0.5	0.5	0.26	7.97	271.94
after dry-cleaned with stoddard solvent type II
one time	−8.54	0.19	−0.83	0.83	0.18	8.58	271.33
two times	−7.55	0.32	−0.75	0.76	0.31	7.59	272.31
five times	−8.32	0.31	−0.66	0.66	0.29	8.35	272.2
after dry-cleaned with perchloroethylene
one time	−8.64	0.22	−0.44	0.44	0.22	8.65	271.61
two times	−7.62	0.16	−0.22	0.22	0.16	7.62	271.19
five times	−8.47	0.26	−0.43	0.43	0.25	8.49	271.9

TABLE 76
the yellowness index, the whiteness index, and the Lab values of gray silk
goods before dry-cleaned and after dry-cleaned with a dry-cleaning solvent
gray	the	the
silk	yellowness	whiteness
goods	index	index	L	a	b	c
before	12.21	39.88	83.9	−0.09	5.67	5.67
dry-cleaned
after dry-cleaned with propylene glycol methyl ether propionate
one time	8.07	50.87	85.78	−0.38	3.81	3.83
two times	8.79	48.19	85.12	−0.44	4.19	4.19
five times	11.22	43.65	85.35	−0.18	5.29	5.29
after dry-cleaned with stoddard solvent type I
one time	10.6	44.42	84.96	−0.23	4.97	4.98
two times	9.61	46.88	85.33	−0.35	4.55	4.56
five times	8.87	48.73	85.57	−0.4	4.21	4.23
after dry-cleaned with stoddard solvent type II
one time	11.22	43	84.79	−0.15	5.25	5.25
two times	9.51	46.73	85.12	−0.39	4.51	4.53
five times	9.07	48.07	85.48	−0.45	4.33	4.36
after dry-cleaned with perchloroethylene
one time	11.41	40.92	83.73	−0.32	5.37	5.37
two times	10.15	44.46	84.71	−0.55	4.89	4.92
five times	10.36	44.24	84.78	−0.45	4.95	4.97

TABLE 77
the differences of the Lab values of gray silk goods after
dry-cleaned with a dry-cleaning solvent
gray silk goods	ΔL	Δa	Δb	Δc	Δh	ΔE	h
after dry-cleaned with propylene glycol methyl ether propionate
one time	1.88	−0.3	−1.87	−1.85	0.39	2.67	95.73
two times	1.22	−0.35	−1.5	−1.48	0.43	1.97	95.96
five times	1.45	−0.09	−0.38	−0.38	0.1	1.5	91.91
after dry-cleaned with stoddard solvent type I
one time	1.06	−0.14	−0.7	−0.69	0.16	1.28	92.63
two times	1.43	−0.26	−1.12	−1.11	0.31	1.84	94.36
five times	1.67	−0.32	−1.46	−1.44	0.39	2.24	95.48
after dry-cleaned with stoddard solvent type II
one time	0.89	−0.06	−0.42	−0.42	0.07	0.99	91.59
two times	1.22	−0.3	−1.16	−1.15	0.35	1.71	94.88
five times	1.59	−0.36	−1.34	−1.32	0.44	2.11	95.95
after dry-cleaned with perchloroethylene
one time	−0.17	−0.23	−0.31	−0.3	0.24	0.42	93.41
two times	0.82	−0.46	−0.78	−0.75	0.51	1.22	96.37
five times	0.89	−0.36	−0.72	−0.7	0.4	1.2	95.21

TABLE 78
the yellowness index, the whiteness index, and the Lab values of gray
cotton goods before dry-cleaned and after dry-cleaned with a dry-cleaning
solvent
gray	the	the
cotton	yellowness	whiteness
goods	index	index	L	a	b	c
before	3.78	64.84	88.13	−0.28	1.61	1.64
dry-cleaned
after dry-cleaned with propylene glycol methyl ether propionate
one time	4.07	64.44	88.18	−0.19	1.71	1.72
two times	4.24	64.79	88.53	−0.13	1.78	1.78
five times	4.08	64.45	88.18	−0.16	1.71	1.72
after dry-cleaned with stoddard solvent type I
one time	4.24	63.66	88.05	−0.24	1.83	1.84
two times	4.11	63.2	87.63	−0.25	1.76	1.77
five times	4.28	64.01	88.27	−0.23	1.84	1.86
after dry-cleaned with stoddard solvent type II
one time	4.06	63.11	87.51	−0.25	1.73	1.75
two times	3.83	65.43	88.37	−0.16	1.59	1.59
five times	3.92	64.84	88.2	−0.18	1.64	1.65
after dry-cleaned with perchloroethylene
one time	4.31	62.8	87.59	−0.17	1.81	1.81
two times	4.27	64.47	88.43	−0.16	1.81	1.81
five times	4.27	64.22	88.27	−0.14	1.8	1.81

TABLE 79
the differences of the Lab values of gray cotton goods after
dry-cleaned with a dry-cleaning solvent
gray cotton goods	ΔL	Δa	Δb	Δc	Δh	ΔE	h
after dry-cleaned with propylene glycol methyl ether propionate
one time	0.06	0.09	0.1	0.09	−0.1	0.15	96.28
two times	0.4	0.15	0.17	0.15	−0.17	0.46	94.24
five times	0.06	0.12	0.09	0.08	−0.13	0.16	95.44
after dry-cleaned with stoddard solvent type I
one time	−0.08	0.04	0.21	0.21	−0.07	0.23	97.48
two times	−0.5	0.03	0.14	0.14	−0.05	0.52	98.01
five times	0.14	0.05	0.23	0.22	−0.09	0.28	97.01
after dry-cleaned with stoddard solvent type II
one time	−0.61	0.03	0.11	0.11	−0.05	0.62	98.17
two times	0.24	0.12	−0.03	−0.04	−0.11	0.27	95.88
five times	0.07	0.1	0.03	0.01	−0.1	0.12	96.33
after dry-cleaned with perchloroethylene
one time	−0.54	0.11	0.19	0.18	−0.14	0.58	95.28
two times	0.3	0.12	0.19	0.17	−0.14	0.37	95.15
five times	0.15	0.14	0.19	0.17	−0.16	0.27	94.57

TABLE 80
the yellowness index, the whiteness index, and the Lab values of gray
wool goods before dry-cleaned and after dry-cleaned with a dry-cleaning
solvent
gray	the	the
wool	yellowness	whiteness
goods	index	index	L	a	b	c
before	13	36.13	82.89	−0.65	6.33	6.36
dry-cleaned
after dry-cleaned with propylene glycol methyl ether propionate
one time	14	34.45	83.14	−0.58	6.82	6.84
two times	12.48	37.27	83.96	−0.65	6.07	6.1
five times	13.55	35.69	83.45	−0.59	6.61	6.64
after dry-cleaned with stoddard solvent type I
one time	13.97	34.34	83.09	−0.64	6.83	6.86
two times	13.33	35.56	83.07	−0.69	6.53	6.56
five times	15.36	31.06	82.73	−0.65	7.52	7.55
after dry-cleaned with stoddard solvent type II
one time	15.12	31.56	82.68	−0.63	7.38	7.41
two times	13.86	34.53	82.56	−0.36	6.59	6.6
five times	14.58	32.97	82.96	−0.61	7.12	7.15
after dry-cleaned with perchloroethylene
one time	14.31	32.43	81.71	−0.51	6.84	6.86
two times	14.88	32.16	82.62	−0.54	7.21	7.23
five times	14.41	33.18	82.6	−0.49	6.94	6.96

TABLE 81
the differences of the Lab values of gray wool goods after
dry-cleaned with a dry-cleaning solvent
gray wool goods	ΔL	Δa	Δb	Δc	Δh	ΔE	h
after dry-cleaned with propylene glycol methyl ether propionate
one time	0.25	0.07	0.49	0.48	−0.11	0.56	94.9
two times	0.07	0	−0.26	−0.26	0.03	0.27	96.14
five times	0.56	0.06	0.28	0.28	−0.09	0.63	95.1
after dry-cleaned with stoddard solvent type I
one time	0.2	0.02	0.5	0.5	−0.06	0.54	95.33
two times	0.18	−0.04	0.2	0.2	0.02	0.27	96.05
five times	−0.16	0	1.2	1.19	0.11	1.21	94.95
after dry-cleaned with stoddard solvent type II
one time	−0.21	0.03	1.05	1.05	−0.13	1.07	94.84
two times	−0.33	0.3	0.26	0.24	−0.32	0.52	93.09
five times	0.08	0.04	0.79	0.79	0.11	0.8	94.93
after dry-cleaned with perchloroethylene
one time	−1.18	0.14	0.51	0.49	−0.18	1.29	94.29
two times	−0.27	0.11	0.88	0.87	−0.19	0.93	94.28
five times	−0.29	0.16	0.62	0.6	−0.22	0.7	94.03

TABLE 82
the yellowness index, the whiteness index, and the Lab values of gray
polyester goods before dry-cleaned and after dry-cleaned with a
dry-cleaning solvent
gray	the	the
polyester	yellowness	whiteness
goods	index	index	L	a	b	c
before	−15.66	112.14	87.83	0.12	−7.37	7.37
dry-cleaned
after dry-cleaned with propylene glycol methyl ether propionate
one time	−13.7	93.65	83	0.51	−6.45	6.47
two times	−15.52	113.85	88.3	0.37	−7.47	7.48
five times	−13.99	111.31	88.71	0.32	−6.82	6.83
after dry-cleaned with stoddard solvent type I
one time	−12.65	88.58	82.04	0.38	−5.9	5.92
two times	−15	109.42	87.39	0.23	−7.12	7.13
five times	−14.29	109.64	87.98	0.27	−6.87	6.87
after dry-cleaned with stoddard solvent type II
one time	−14.32	107.7	87.49	0.06	−6.75	6.75
two times	−14.26	109.54	87.98	0.26	−6.85	6.85
five times	−13.84	94.02	83.04	0.51	−6.51	6.53
after dry-cleaned with perchloroethylene
one time	−11.7	90.08	83.3	0.38	−5.57	5.58
two times	−13.73	108.61	88.14	0.18	−6.6	6.6
five times	−12.14	92.01	83.65	0.44	−5.81	5.83

TABLE 83
the differences of the Lab values of gray polyester goods after
dry-cleaned with a dry-cleaning solvent
gray polyester goods	ΔL	Δa	Δb	Δc	Δh	ΔE	h
after dry-cleaned with propylene glycol methyl ether propionate
one time	−4.82	0.38	0.93	−0.91	0.43	4.92	274.49
two times	0.48	0.25	−0.09	0.1	0.24	0.54	272.82
five times	0.89	0.2	0.58	−0.55	0.22	1.07	272.71
after dry-cleaned with stoddard solvent type I
one time	−5.79	0.26	1.47	−1.46	0.32	5.98	273.72
two times	−0.43	0.11	0.25	−0.25	0.12	0.51	271.89
five times	−0.16	0.15	0.51	−0.5	0.16	0.55	272.25
after dry-cleaned with stoddard solvent type II
one time	−0.34	−0.06	0.62	−0.62	−0.05	0.71	270.52
two times	0.16	0.13	0.52	−0.52	0.15	0.56	272.14
five times	−4.78	0.39	0.86	−0.84	0.43	4.88	274.48
after dry-cleaned with perchloroethylene
one time	−4.53	0.25	1.81	1.79	0.33	4.88	273.87
two times	−4.18	0.31	1.56	−1.54	0.38	4.47	271.58
five times	−4.18	0.31	1.56	−1.54	0.38	4.47	274.29

TABLE 84
the K/S value, the grade of color change and the Lab values
of the dyed fabric of wool before dry-cleaned and after
dry-cleaned with a dry-cleaning solvent
	K/S	the grade of
wool	value	color change	L	a	b	c	h
before	9.02	—	32.73	−8.01	6.18	10.12	142.32
dry-cleaned
after dry-cleaned with dry-cleaning solvent composition A
one time	9.36	fourth grade	31.99	−7.87	5.67	5.67	144.22
two times	9.08	fifth grade	32.58	−8.16	5.94	5.94	143.95
five times	9.32	third to	31.9	−7.7	5.01	5.01	146.93
		fourth grade
after dry-cleaned with dry-cleaning solvent composition B
one time	9.12	fifth grade	32.69	−7.9	6.03	6.03	142.65
two times	8.77	fourth to	33.01	−7.88	5.93	5.93	143
		fifth grade
five times	8.58	fourth grade	32.55	−7.55	5.26	5.26	145.14
after dry-cleaned with dry-cleaning solvent composition C
one time	9.08	fourth to	32.45	−7.82	5.89	5.89	143.14
		fifth grade
two times	8.83	fourth grade	32.97	−7.57	5.37	5.37	144.65
five times	8.83	third to	32.38	−7.5	4.89	4.89	146.86
		fourth grade
after dry-cleaned with dry-cleaning solvent composition D
one time	8.65	fourth grade	32.84	−7.71	5.39	5.39	145.02
two times	8.76	third to	32.58	−7.32	4.93	4.93	146.05
		fourth grade
five times	9.16	fourth grade	32.22	−7.48	5.19	5.19	145.24
after dry-cleaned with dry-cleaning solvent composition E
one time	9.28	fourth grade	32.23	−7.67	5.42	5.42	144.79
two times	8.93	third to	32.58	−7.45	5.08	5.08	145.73
		fourth grade
five times	9.22	third to	32.15	−7.49	5.25	5.25	144.94
		fourth grade

TABLE 85
the differences of the Lab values of the dyed fabric of wool after dry-
cleaned with a dry-cleaning solvent
wool	ΔL	Δa	Δb	Δc	Δh	ΔE
after dry-cleaned with dry-cleaning solvent composition A
one time	−0.74	0.14	−0.51	−0.42	0.33	0.91
two times	−0.16	−0.16	−0.24	−0.02	0.29	0.33
five times	−0.83	0.31	−1.17	−0.93	0.78	1.47
after dry-cleaned with dry-cleaning solvent composition B
one time	−0.04	0.11	−0.16	−0.18	0.06	0.2
two times	0.28	0.13	−0.25	−0.26	0.12	0.4
five times	−0.18	0.46	−0.93	−0.92	0.47	1.05
after dry-cleaned with dry-cleaning solvent composition C
one time	−0.28	0.19	−0.3	−0.33	0.12	0.45
two times	0.27	0.44	−0.81	−0.84	0.39	0.95
five times	−0.35	0.51	−1.29	−1.17	0.75	1.43
after dry-cleaned with dry-cleaning solvent composition D
one time	0.1	0.3	−0.79	−0.71	0.46	0.85
two times	−0.15	0.69	−1.26	−1.3	0.61	1.44
five times	−0.47	0.38	−0.87	−0.82	0.47	1.04
after dry-cleaned with dry-cleaning solvent composition E
one time	−0.51	0.33	−0.77	−0.73	0.42	0.98
two times	−0.15	0.56	−1.11	−1.1	0.57	1.25
five times	−0.58	0.52	−0.93	−0.97	0.44	1.22

TABLE 86
the K/S value, the grade of color change and the Lab values
of the dyed fabric of polyester/rayon before dry-cleaned and
after dry-cleaned with a dry-cleaning solvent
polyester/	K/S	the grade of
rayon	value	color change	L	a	b	c	h
before	2.87	N/A	50.88	−2.32	−22.39	22.51	264.09
dry-
cleaned
after dry-cleaned with dry-cleaning solvent composition A
one time	2.94	fourth to	50.75	−2.8	−22.04	22.22	262.76
		fifth grade
two times	2.81	fourth grade	51.36	−2.74	−21.94	22.11	262.88
five times	3.03	fourth grade	50.34	−2.86	−21.96	22.15	262.58
after dry-cleaned with dry-cleaning solvent composition B
one time	3.04	fourth grade	50.37	−2.65	−22.66	22.82	263.32
two times	2.71	third to	51.67	−2.7	−21.53	21.7	262.85
		fourth grade
five times	2.97	fourth to	50.58	−2.7	−21.98	22.14	262.99
		fifth grade
after dry-cleaned with dry-cleaning solvent composition C
one time	2.94	fourth grade	50.49	−2.55	−21.9	22.05	263.36
two times	2.96	fourth to	50.86	−2.98	−22.16	22.36	262.34
		fifth grade
five times	2.97	fourth to	50.85	−2.66	−22.88	23.03	263.38
		fifth grade
after dry-cleaned with dry-cleaning solvent composition D
one time	3.09	third to	50.43	−2.66	−23.25	23.41	263.47
		fourth grade
two times	3.03	fourth grade	50.56	−2.32	−23.3	23.42	264.3
five times	3	fourth to	50.48	−2.43	−22.77	22.9	263.92
		fifth grade
after dry-cleaned with dry-cleaning solvent composition E
one time	2.84	fourth to	51.15	−2.34	−22.55	22.67	264.08
		fifth grade
two times	2.97	fourth grade	50.82	−2.56	−23.05	23.19	263.68
five times	3.01	fourth grade	50.3	−2.66	−21.99	22.15	263.1

TABLE 87
the differences of the Lab values of the dyed fabric of polyester/rayon
after dry-cleaned with a dry-cleaning solvent
polyester/rayon	ΔL	Δa	Δb	Δc	Δh	ΔE
after dry-cleaned with dry-cleaning solvent composition A
one time	−0.13	−0.48	0.35	−0.29	−0.52	0.61
two times	0.48	−0.43	0.45	−0.4	−0.47	0.78
five times	−0.54	−0.54	0.43	−0.36	−0.59	0.88
after dry-cleaned with dry-cleaning solvent composition B
one time	−0.51	−0.34	−0.27	0.31	−0.3	0.67
two times	0.8	−0.39	0.86	−0.81	−0.48	1.23
five times	−0.3	−0.39	0.41	−0.37	−0.43	0.64
after dry-cleaned with dry-cleaning solvent composition C
one time	−0.39	−0.23	0.49	−0.46	−0.28	0.67
two times	−0.02	−0.66	0.23	−0.15	−0.69	0.7
five times	−0.03	−0.34	−0.49	0.52	−0.28	0.6
after dry-cleaned with dry-cleaning solvent composition D
one time	−0.45	−0.34	−0.89	0.9	−0.25	1.03
two times	−0.31	−0.01	−0.91	0.91	0.08	0.97
five times	−0.4	−0.11	−0.38	0.39	−0.07	0.56
after dry-cleaned with dry-cleaning solvent composition E
one time	0.27	−0.02	−0.16	0.16	0	0.31
two times	−0.06	−0.24	−0.66	0.69	−0.17	0.71
five times	−0.58	−0.34	0.4	−0.36	−0.39	0.78

TABLE 88
the K/S value, the grade of color change and the Lab values
of the dyed fabric of polyester before dry-cleaned and after
dry-cleaned with a dry-cleaning solvent
	K/S	the grade of
polyester	value	color change	L	a	b	c	h
before	2.87	N/A	45.64	−33.61	4.49	33.9	172.39
dry-
cleaned
after dry-cleaned with dry-cleaning solvent composition A
one time	8.13	fourth to	45.43	−33.81	4.38	34.09	172.62
		fifth grade
two times	7.86	fourth to	45.97	−33.97	4.64	34.28	172.21
		fifth grade
five times	7.85	fourth grade	46.25	−34.31	4.24	34.57	172.96
after dry-cleaned with dry-cleaning solvent composition B
one time	7.45	third to	46.81	−34.24	4.74	34.56	172.12
		fourth grade
two times	7.45	third to	46.83	−34.21	4.76	34.54	172.48
		fourth grade
five times	8	fourth to	45.83	−34.17	4.53	34.47	172.45
		fifth grade
after dry-cleaned with dry-cleaning solvent composition C
one time	7.8	fourth to	46.07	−33.84	4.5	34.14	172.43
		fifth grade
two times	7.65	fourth to	46.17	−33.78	4.54	34.08	172.34
		fifth grade
five times	7.95	fifth grade	45.68	−33.72	4.39	34.01	172.59
after dry-cleaned with dry-cleaning solvent composition D
one time	7.62	fourth grade	46.38	−34.03	4.55	34.34	172.38
two times	7.59	fourth grade	46.35	−33.86	4.6	34.18	172.27
five times	8.1	fourth to	45.52	−33.81	4.35	34.08	172.66
		fifth grade
after dry-cleaned with dry-cleaning solvent composition E
one time	8.06	fourth to	45.62	−33.81	4.09	34.05	173.10
		fifth grade
two times	8.2	fourth to	45.14	−33.48	4.18	33.74	172.88
		fifth grade
five times	7.78	fourth to	46.09	−33.87	4.66	34.19	172.17
		fifth grade

TABLE 89
the differences of the Lab values of the dyed fabric of polyester after
dry-cleaned with a dry-cleaning solvent
polyester	ΔL	Δa	Δb	Δc	Δh	ΔE
after dry-cleaned with dry-cleaning solvent composition A
one time	−0.21	−0.21	−0.11	0.19	0.13	0.31
two times	0.34	−0.36	0.16	0.38	−0.11	0.52
five times	0.61	−0.71	−0.25	0.67	0.34	0.97
after dry-cleaned with dry-cleaning solvent composition B
one time	1.18	−0.63	0.25	0.66	−0.16	1.36
two times	1.19	−0.6	0.27	0.63	−0.19	1.36
five times	0.19	−0.57	0.04	0.57	0.03	0.6
after dry-cleaned with dry-cleaning solvent composition C
one time	0.44	−0.23	0.01	0.23	0.02	0.5
two times	0.53	−0.17	0.05	0.18	−0.03	0.57
five times	0.04	−0.12	−0.1	0.1	0.12	0.16
after dry-cleaned with dry-cleaning solvent composition D
one time	0.74	−0.43	0.06	0.43	−0.51	0.83
two times	0.71	−0.26	0.11	0.27	−0.07	0.77
five times	−0.11	−0.2	−0.14	0.18	0.16	0.27
after dry-cleaned with dry-cleaning solvent composition E
one time	−0.01	−0.2	0.4	0.15	0.42	0.44
two times	−0.5	0.12	−0.31	−0.16	0.29	0.6
five times	0.45	−0.27	0.17	0.29	0.13	0.55

TABLE 90
the K/S value, the grades of color change and pollution and the Lab values of
the dyed fabric of wool after dry-cleaned with a dry-cleaning solvent
	K/S	the grade of	the grade of
wool	value	color change	pollution	L	a	b	c	h
after dry-cleaned with dry-cleaning solvent composition A
one time	9.65	fourth grade	second to third	31.4	−7.97	5.38	9.62	146.9
			grade
two times	8.93	fourth to fifth	second to third	32.43	−8.17	5.47	9.83	146.19
		grade	grade
five times	8.98	third to fourth	third grade	32.14	−7.73	4.86	9.13	147.83
		grade
after dry-cleaned with dry-cleaning solvent composition B
one time	8.85	fourth to fifth	third to fourth	32.97	−7.81	5.92	9.8	142.82
		grade	grade
two times	8.74	fifth grade	third to fourth	33.09	−7.92	5.87	9.86	143.46
			grade
five times	8.93	fifth grade	third to fourth	32.44	−7.67	5.27	9.3	145.5
			grade
after dry-cleaned with dry-cleaning solvent composition C
one time	9.08	fourth to fifth	third to fourth	32.37	−7.77	5.56	9.55	144.41
		grade	grade
two times	8.78	fourth to fifth	third grade	33	−7.72	5.63	9.56	143.9
		grade
five times	9.02	fourth to fifth	third to fourth	32.17	−7.7	5.32	9.36	145.35
		grade	grade
after dry-cleaned with dry-cleaning solvent composition D
one time	8.87	fourth to fifth	second to third	32.55	−7.59	5.4	9.31	144.54
		grade	grade
two times	8.73	fourth to fifth	third grade	32.75	−7.62	5.32	9.29	145.07
		grade
five times	8.91	fourth to fifth	third to fourth	32.6	−7.64	5.51	9.42	144.23
		grade	grade
after dry-cleaned with dry-cleaning solvent composition E
one time	8.96	fourth to fifth	third to fourth	32.53	−7.84	5.39	9.51	145.49
		grade	grade
two times	8.89	fourth to fifth	third to fourth	32.63	−7.73	5.62	9.56	143.96
		grade	grade
five times	9.08	fifth grade	third to fourth	32.11	−7.72	5.24	9.33	144.84
			grade

TABLE 91
the differences of the Lab values of the dyed fabric of wool after dry-
cleaned with a dry-cleaning solvent
wool	ΔL	Δa	Δb	Δc	Δh	ΔE
after dry-cleaned with dry-cleaning solvent composition A
one time	−0.59	−0.1	−0.29	0.08	0.3	0.67
two times	−0.15	0	−0.47	−0.27	0.39	0.5
five times	−0.86	0	−0.77	−0.43	0.64	1.16
after dry-cleaned with dry-cleaning solvent composition B
one time	0.27	0.09	−0.1	−0.13	0.03	0.31
two times	9.08	−0.05	−0.06	0.05	0.08	0.11
five times	−0.11	−0.12	0.01	0.1	0.06	0.16
after dry-cleaned with dry-cleaning solvent composition C
one time	−0.09	0.06	−0.33	−0.24	0.23	0.34
two times	0.04	−0.15	0.26	0.28	−0.12	0.31
five times	−0.21	−0.2	0.43	0.41	−0.24	0.52
after dry-cleaned with dry-cleaning solvent composition D
one time	−0.29	0.12	0.01	−0.09	−0.08	0.31
two times	0.17	−0.2	0.4	0.47	−0.15	0.53
five times	0.26	−0.02	0.19	0.13	−0.14	0.32
after dry-cleaned with dry-cleaning solvent composition E
one time	0.34	−0.16	0.03	0.12	0.12	0.3
two times	0.05	−0.28	0.55	0.54	−0.29	0.61
five times	−0.04	−0.24	−0.01	0.19	0.15	0.24

TABLE 92
the K/S value, the grades of color change and pollution and the Lab values of the
dyed fabric of polyester/rayon after dry-cleaned with a dry-cleaning solvent
	K/S	the grade of	the grade of
polyester/rayon	value	color change	pollution	L	a	b	c	h
after dry-cleaned with dry-cleaning solvent composition A
one time	2.98	fourth to fifth	third to fourth	50.51	−2.79	−21.87	22.05	262.74
		grade	grade
two times	2.92	fourth to fifth	third to fourth	51.05	−2.85	−22.40	22.58	262.74
		grade	grade
five times	2.99	fourth to fifth	third to fourth	50.71	−2.9	−22.42	22.6	262.64
		grade	grade
after dry-cleaned with dry-cleaning solvent composition B
one time	3.07	fourth to fifth	third to fourth	50.21	−2.67	−22.52	22.67	262.23
		grade	grade
two times	2.79	fourth to fifth	third to fourth	51.39	−2.68	−21.94	22.1	263.04
		grade	grade
five times	3.34	third to fourth	third to fourth	49.43	−2.76	−23.13	23.3	263.2
		grade	grade
after dry-cleaned with dry-cleaning solvent composition C
one time	3.01	fourth grade	third grade	50.53	−2.75	22.55	22.71	263.18
two times	3.12	third to fourth	third to fourth	50.01	−2.35	−22.92	23.04	264.14
		grade	grade
five times	2.95	fifth grade	third to fourth	51.01	−2.72	−22.89	23.05	263.22
			grade
after dry-cleaned with dry-cleaning solvent composition D
one time	3.03	fourth grade	third to fourth	50.33	−2.55	−22.44	22.59	263.52
			grade
two times	2.9	third to fourth	third to fourth	50.99	−2.88	−21.99	22.14	262.53
		grade	grade
five times	2.93	fourth to fifth	third to fourth	50.72	−2.46	−22.48	22.64	263.75
		grade	grade
after dry-cleaned with dry-cleaning solvent composition E
one time	3.04	fourth grade	third to fourth	50.34	−2.55	−22.65	22.8	263.57
			grade
two times	2.87	fourth grade	third to fourth	50.89	−2.43	−22.08	22.22	263.73
			grade
five times	3.05	fourth grade	third to fourth	50.45	−2.68	−22.82	22.98	263.29
			grade

TABLE 93
the differences of the Lab values of the dyed fabric of polyester/rayon
after dry-cleaned with a dry-cleaning solvent
polyester/rayon	ΔL	Δa	Δb	Δc	Δh	ΔE
after dry-cleaned with dry-cleaning solvent composition A
one time	−0.24	0.01	0.17	−0.17	−0.01	0.3
two times	−0.31	−0.11	−0.46	0.47	−0.05	0.56
five times	0.38	−0.04	−0.45	0.46	0.02	0.59
after dry-cleaned with dry-cleaning solvent composition B
one time	−0.16	−0.02	0.15	−0.14	−0.04	0.21
two times	−0.28	0.02	−0.41	0.4	0.07	0.5
five times	−1.15	−0.06	−1.15	1.15	0.08	1.63
after dry-cleaned with dry-cleaning solvent composition C
one time	0.04	−0.15	−0.65	0.66	−0.07	0.67
two times	−0.85	0.63	−0.76	0.69	0.71	1.3
five times	0.16	0.07	−0.01	0.02	−0.06	0.17
after dry-cleaned with dry-cleaning solvent composition D
one time	−0.1	0.11	0.81	−0.82	0.02	0.83
two times	0.43	−0.56	1.13	−1.24	−0.7	1.49
five times	0.25	−0.04	0.29	−0.29	−0.07	0.38
after dry-cleaned with dry-cleaning solvent composition E
one time	−0.81	−0.22	−0.01	0.13	−0.21	0.84
two times	0.06	0.13	0.97	−0.98	0.02	0.98
five times	0.15	−0.02	−0.83	0.83	0.08	0.84

TABLE 94
the K/S value, the grades of color change and pollution and the Lab values of the
dyed fabric of polyester after dry-cleaned with a dry-cleaning solvent
	K/S	the grade of	the grade of
polyester	value	color change	pollution	L	a	b	c	h
after dry-cleaned with dry-cleaning solvent composition A
one time	8.14	fifth grade	third to fourth	45.44	−33.93	4.48	34.23	172.48
			grade
two times	7.74	fourth to fifth	third to fourth	46.4	−34.29	4.41	34.57	172.67
		grade	grade
five times	7.93	fourth to fifth	third to fourth	46.05	−34.19	4.38	34.47	172.7
		grade	grade
after dry-cleaned with dry-cleaning solvent composition B
one time	7.7	fourth to fifth	third to fourth	46.39	−34.24	4.66	34.55	172.24
		grade	grade
two times	7.67	fourth to fifth	third to fourth	46.65	−34.32	4.72	34.66	172.17
		grade	grade
five times	7.76	fourth to fifth	third to fourth	46.54	−34.41	4.78	34.74	172.09
		grade	grade
after dry-cleaned with dry-cleaning solvent composition C
one time	7.91	fourth to fifth	third to fourth	46.06	−34.17	4.48	34.46	172.52
		grade	grade
two times	7.6	fourth to fifth	third to fourth	46.4	−33.93	4.67	34.25	172.16
		grade	grade
five times	8.1	fourth grade	third to fourth	45.13	−33.25	4.45	33.55	172.38
			grade
after dry-cleaned with dry-cleaning solvent composition D
one time	7.51	fourth to fifth	third to fourth	46.63	−34.14	4.64	34.46	172.26
		grade	grade
two times	7.7	fifth grade	third to fourth	46.19	−33.82	4.61	34.14	172.25
			grade
five times	7.68	fourth to fifth	third to fourth	45.74	−33.92	4.44	34.21	172.55
		grade	grade
after dry-cleaned with dry-cleaning solvent composition E
one time	8.02	fourth to fifth	third to fourth	45.47	−33.64	4.27	33.89	172.76
		grade	grade
two times	8.09	fifth grade	third to fourth	45.24	−33.35	4.24	33.62	172.75
			grade
five times	7.52	fourth to fifth	third to fourth	46.55	−33.95	4.72	34.28	172.08
		grade	grade

TABLE 95
the differences of the Lab values of the dyed fabric of polyester after
dry-cleaned with a dry-cleaning solvent
polyester	ΔL	Δa	Δb	Δc	Δh	ΔE
after dry-cleaned with dry-cleaning solvent composition A
one time	0.01	−0.12	0.1	0.13	−0.08	0.16
two times	0.43	−0.32	−0.23	0.29	0.27	0.59
five times	−0.2	0.13	0.14	−0.11	−0.16	0.28
after dry-cleaned with dry-cleaning solvent composition B
one time	0.42	0	−0.07	−0.01	0.07	0.42
two times	−0.28	−0.2	0.02	0.2	0	0.35
five times	0.22	0.35	0.03	−0.35	−0.08	0.42
after dry-cleaned with dry-cleaning solvent composition C
one time	−0.01	−0.33	−0.01	0.32	0.06	0.33
two times	0.23	−0.15	0.13	0.17	−0.11	0.3
five times	−0.55	0.47	0.06	−0.45	−0.12	0.72
after dry-cleaned with dry-cleaning solvent composition D
one time	0.25	−0.11	0.09	0.12	−0.07	0.29
two times	−0.16	0.04	0.01	−0.04	0.02	0.16
five times	0.21	−0.12	0.08	0.13	−0.07	0.26
after dry-cleaned with dry-cleaning solvent composition E
one time	−0.15	0.19	0.18	−0.17	−0.2	0.3
two times	0.1	0.13	0.06	−0.12	−0.08	0.18
five times	0.46	−0.07	0.07	0.08	−0.06	0.47

TABLE 96
the K/S value, the grades of color change and pollution and the Lab values of
the dyed fabric of wool after dry-cleaned with a dry-cleaning solvent
	K/S	the grade of	the grade of
polyester	value	color change	pollution	L	a	b	c	h
after dry-cleaned with dry-cleaning solvent composition A
one time	8.65	third to fourth	third to fourth	33.16	−8	5.54	9.74	145.29
		grade	grade
two times	8.36	fourth grade	third to fourth	33.49	−8.05	5.61	9.81	145.1
			grade
five times	8.85	fifth grade	third to fourth	32.48	−7.57	5.17	9.17	145.67
			grade
after dry-cleaned with dry-cleaning solvent composition B
one time	8.8	fifth grade	third to fourth	32.96	−7.71	5.64	9.55	143.78
			grade
two times	8.67	fourth to fifth	third to fourth	33.05	−7.76	5.4	9.46	145.17
		grade	grade
five times	8.33	fourth grade	third to fourth	33.32	−8.06	5.44	9.72	145.96
			grade
after dry-cleaned with dry-cleaning solvent composition C
one time	8.78	fourth to fifth	third to fourth	32.71	−7.79	5.58	9.59	144.41
		grade	grade
two times	8.87	fourth to fifth	third to fourth	32.74	−7.57	5.45	9.33	144.27
		grade	grade
five times	8.91	fourth to fifth	third to fourth	32.71	−7.42	5.31	9.12	144.41
		grade	grade
after dry-cleaned with dry-cleaning solvent composition D
one time	8.62	fourth to fifth	third to fourth	33.32	−7.58	5.86	9.59	142.3
		grade	grade
two times	8.57	fourth to fifth	third to fourth	33.15	−7.51	5.49	9.3	143.85
		grade	grade
five times	8.87	fourth to fifth	third to fourth	32.82	−7.47	5.45	9.25	143.92
		grade	grade
after dry-cleaned with dry-cleaning solvent composition E
one time	8.6	fourth grade	third to fourth	32.92	−7.43	5.25	9.1	143.73
			grade
two times	8.89	fourth to fifth	third to fourth	32.71	−7.39	5.3	9.09	143.36
		grade	grade
five times	8.85	third to fourth	third to fourth	33.04	−7.49	5.16	9.09	145.42
		grade	grade

TABLE 97
the differences of the Lab values of the dyed fabric of wool after dry-
cleaned with a dry-cleaning solvent
wool	ΔL	Δa	Δb	Δc	Δh	ΔE
after dry-cleaned with dry-cleaning solvent composition A
one time	1.1	0.01	−0.29	−0.17	0.23	1.14
two times	0.75	0	−0.11	−0.06	0.09	0.75
five times	0.01	0.1	−0.05	−0.11	−0.02	0.12
after dry-cleaned with dry-cleaning solvent composition B
one time	−0.13	0.1	−0.03	−0.1	−0.04	0.17
two times	0.47	−0.01	−0.15	−0.08	0.13	0.49
five times	0.48	−0.55	0.16	0.54	0.18	0.75
after dry-cleaned with dry-cleaning solvent composition C
one time	0.2	0.02	−0.06	−0.05	0.04	0.21
two times	0.5	0.03	0.12	0.04	0.11	0.51
five times	0.23	0.25	−0.43	−0.45	0.19	0.54
after dry-cleaned with dry-cleaning solvent composition D
one time	0.47	0.04	0.37	0.19	−0.32	0.6
two times	0.42	0.07	0.43	0.31	−0.32	0.61
five times	0.52	0.15	0.13	−0.05	−0.19	0.55
after dry-cleaned with dry-cleaning solvent composition E
one time	0.69	0.25	−0.16	−0.29	−0.01	0.75
two times	0.38	0.04	0.28	0.13	−0.25	0.47
five times	1.14	0.04	0.12	0.03	−0.13	1.15

TABLE 98
the K/S value, the grades of color change and pollution and the Lab values of the
dyed fabric of polyester/rayon after dry-cleaned with a dry-cleaning solvent
	K/S	the grade of	the grade of
polyester	value	color change	pollution	L	a	b	c	h
after dry-cleaned with dry-cleaning solvent composition A
one time	2.96	fifth grade	third to	50.7	−2.59	−22.27	22.42	263.37
			fourth grade
two times	3.02	fifth grade	third to	50.48	−2.93	−21.90	22.1	262.39
			fourth grade
five times	2.78	fourth grade	third to	51.59	−3.2	−21.42	21.66	261.51
			fourth grade
after dry-cleaned with dry-cleaning solvent composition B
one time	2.8	fourth to	third to	51.28	−2.8	−21.48	21.66	262.58
		fifth grade	fourth grade
two times	3.03	fourth to	third to	50.61	−3.18	−22.18	22.41	261.85
		fifth grade	fourth grade
five times	3.02	fourth grade	third to	50.47	−3.07	−21.83	22.05	261.99
			fourth grade
after dry-cleaned with dry-cleaning solvent composition C
one time	2.91	fourth to	third to	51.01	−2.77	−22.30	22.47	261.92
		fifth grade	fourth grade
two times	2.95	fourth to	third to	50.63	−2.74	−21.96	22.13	262.89
		fifth grade	fourth grade
five times	3.06	fourth grade	third to	50.21	−2.81	−22.19	22.37	262.79
			fourth grade
after dry-cleaned with dry-cleaning solvent composition D
one time	2.96	fourth to	third to	50.72	−3	−21.93	22.14	262.22
		fifth grade	fourth grade
two times	2.9	fourth to	third to	51.05	−3	−21.94	22.14	262.21
		fifth grade	fourth grade
five times	2.99	third to	third to	50.34	−2.89	−21.51	21.7	262.35
		fourth grade	fourth grade
after dry-cleaned with dry-cleaning solvent composition E
one time	3.03	fourth to	third to	50.41	−2.71	−22.46	22.63	263.11
		fifth grade	fourth grade
two times	3.02	fourth to	third to	50.48	−2.75	−22.46	22.62	263.01
		fifth grade	fourth grade
five times	2.92	fourth grade	third to	50.93	−2.98	−21.97	22.17	262.67
			fourth grade

TABLE 99
the differences of the Lab values of the dyed fabric of polyester/rayon
after dry-cleaned with a dry-cleaning solvent
polyester/rayon	ΔL	Δa	Δb	Δc	Δh	ΔE
after dry-cleaned with dry-cleaning solvent composition A
one time	−0.17	−0.18	0.11	−0.09	−0.19	0.27
two times	−0.02	−0.25	0.16	−0.13	−0.27	0.3
five times	0.31	−0.37	0.93	−0.87	−0.49	1.05
after dry-cleaned with dry-cleaning solvent composition B
one time	0.26	−0.18	0.45	−0.42	−0.23	0.55
two times	−0.56	−0.18	0.02	0.01	−0.18	0.59
five times	−0.61	−0.33	0.49	−0.44	−0.39	0.85
after dry-cleaned with dry-cleaning solvent composition C
one time	−0.24	−0.18	−0.12	0.14	−0.16	0.32
two times	−0.45	−0.31	0.31	−0.27	−0.35	0.63
five times	−0.52	−0.2	0.54	−0.51	−0.26	0.77
after dry-cleaned with dry-cleaning solvent composition D
one time	−0.26	−0.39	−0.23	0.28	−0.36	0.52
two times	0.27	−0.2	0.03	0	−0.2	0.33
five times	0.09	−0.26	1.59	−1.55	−0.45	1.61
after dry-cleaned with dry-cleaning solvent composition E
one time	−0.47	−0.28	0.27	−0.23	0.31	0.61
two times	−0.42	−0.25	0.18	−0.14	−0.27	0.52
five times	0.86	−0.32	0.38	−0.34	−0.36	0.99

TABLE 100
the K/S value, the grades of color change and pollution and the Lab values of the
dyed fabric of polyester after dry-cleaned with a dry-cleaning solvent
	K/S	the grade of	the grade of
polyester	value	color change	pollution	L	a	b	c	h
after dry-cleaned with dry-cleaning solvent composition A
one time	8.33	fourth grade	third to fourth	44.12	−31.66	3.67	31.87	173.38
			grade
two times	7.68	fourth grade	third to fourth	45.6	−32.27	3.98	32.51	172.97
			grade
five times	7.66	fourth to fifth	third to fourth	45.89	−32.66	4.31	32.94	172.47
		grade	grade
after dry-cleaned with dry-cleaning solvent composition B
one time	7.34	fourth to fifth	third to fourth	46.45	−32.90	4.43	33.2	172.32
		grade	grade
two times	7.38	fourth grade	third to fourth	46.38	−32.84	4.68	33.18	171.89
			grade
five times	7.64	third to fourth	third to fourth	45.77	−32.47	4.63	32.8	171.88
		grade	grade
after dry-cleaned with dry-cleaning solvent composition C
one time	7.73	third to fourth	third to fourth	45.79	−32.78	4	33.02	173.03
		grade	grade
two times	7.63	fourth grade	third to fourth	45.62	−32.18	4.4	32.48	172.21
			grade
five times	8.17	fourth grade	third to fourth	44.97	−32.63	4.3	32.92	172.5
			grade
after dry-cleaned with dry-cleaning solvent composition D
one time	7.43	third to fourth	third to fourth	46.16	−32.49	4.15	32.75	172.73
		grade	grade
two times	7.9	third to fourth	third grade	45.21	−32.48	4.12	32.74	172.76
		grade
five times	7.7	fourth to fifth	third to fourth	45.43	−32.24	4.22	32.52	172.54
		grade	grade
after dry-cleaned with dry-cleaning solvent composition E
one time	8.03	fourth to fifth	third to fourth	45.14	−32.47	3.96	32.71	173.05
		grade	grade
two times	8.22	fourth to fifth	third to fourth	44.62	−32.17	3.68	32.38	173.47
		grade	grade
five times	7.7	fourth to fifth	third to fourth	45.69	−32.65	4.46	32.96	172.72
		grade	grade

TABLE 101
the differences of the Lab values of the dyed fabric of polyester after
dry-cleaned with a dry-cleaned solvent
polyester	ΔL	Δa	Δb	Δc	Δh	ΔE
after dry-cleaned with dry-cleaning solvent composition A
one time	−0.75	0.04	−0.16	0.02	0.16	0.77
two times	−0.48	0.66	−0.26	−0.68	0.18	0.86
five times	0.17	−0.43	0.33	0.47	−0.28	0.57
after dry-cleaned with dry-cleaning solvent composition B
one time	0.03	−0.29	−0.07	0.28	0.1	0.3
two times	−0.59	−0.24	0.01	0.24	0.02	0.63
five times	0.33	−1.05	0.31	1.08	−0.16	1.14
after dry-cleaned with dry-cleaning solvent composition C
one time	0.3	−1.02	−0.1	1	0.22	1.06
two times	−0.13	−0.87	0.28	0.9	−0.16	0.92
five times	−0.45	−0.38	0.29	0.42	−0.24	0.66
after dry-cleaned with dry-cleaning solvent composition D
one time	−0.22	1.54	−0.41	−1.58	0.2	1.61
two times	−0.38	−0.95	0.15	0.96	−0.03	1.04
five times	−0.1	−0.38	0.07	0.39	−0.02	0.4
after dry-cleaned with dry-cleaning solvent composition E
one time	−0.39	−0.11	0.08	0.12	−0.07	0.41
two times	−0.02	−0.58	0.64	0.58	0.03	0.58
five times	−0.34	−0.4	0.2	0.42	−0.14	0.56

Claims

1. A dry-cleaning solvent composition, comprising about 30 wt % of propylene glycol methyl ether propionate, and a solvent, and said solvent is perchloroethylene, or stoddard solvent type I, or stoddard solvent type II, and being about 70 wt % of the composition.

2. A dry-cleaning solvent composition, comprising about 70 wt % of propylene glycol methyl ether propionate, and a solvent, and said solvent is perchloroethylene, or stoddard solvent type I, or stoddard solvent type II, and being about 30 wt % of the composition.

3. A dry-cleaning solvent composition, comprising about 30 wt % of propylene glycol methyl ether acetate, and a solvent, and said solvent is perchloroethylene, Stoddard solvent type I or Stoddard solvent type II in an amount of about 70 wt % of the composition.

4. A dry-cleaning solvent composition, comprising about 70 wt % of propylene glycol methyl ether acetate, and a solvent, and said solvent is perchloroethylene, Stoddard solvent type I or Stoddard solvent type I in an amount of about 30 wt % of the composition.