Surface-finished yarn having multiple inorganic materials

Abstract

A surface-finished yarn having multiple inorganic materials is provided. The surface-finished yarn comprises a yarn, a first material and a second material. The surface of the yarn comprises a plurality of the plurality of first regions and a plurality of second regions wherein the plurality of first regions and the plurality of second regions are alternately disposed along an axial direction of the yarn. The first material is disposed onto the plurality of first regions while the second material different from the first material is disposed onto the plurality of second regions.

Description

RELATED APPLICATIONS

This application claims priority to Taiwan Application Serial Number 96101653, filed Jan. 16, 2007, which is herein incorporated by reference.

BACKGROUND

1. Field of Invention

The present invention relates to a surface-finished yarn. More particularly, the present invention relates to a surface-finished yarn having multiple inorganic materials.

2. Description of Related Art

Fabrics have been widely applied in our everyday lives. In addition to clothing, fabrics can also be used as a foundation for supporting wound dressing, dishcloth and different types of wipers. As the advance of the technology, the functions of the fabrics are not limited to thermal protection, and manufacturers are trying to produce yarn with additional functions so as to increase the value of the fabrics thereof. Therefore, it is desired to provide a novel multi-functional yarn and/or fabric.

SUMMARY

A surface-finished yarn having multiple inorganic materials and a fabric thereof are provided in the present invention.

According to one embodiment of the present invention, a surface-finished yarn having multiple inorganic materials is provided. The surface-finished yarn comprises a yarn, a first material and a second material. The surface of the yarn comprises a plurality of first regions and a plurality of second regions wherein the plurality of first regions and the plurality of second regions are alternately arranged on the yarn along an axial direction thereof. The first material is disposed onto the plurality of first regions while the second material different from the first material is disposed onto the plurality of second regions.

According to another embodiment of the present invention, a fabric having multiple inorganic materials is provided. The fabric comprises a surface-finished yarn of the previous embodiment and a common yarn. The common yarn and the surface-finished yarn are cowoven to form the fabric with multiple inorganic materials.

According to yet another embodiment of the present invention, a surface-finished yarn having multiple inorganic materials is provided. The surface of the surface-finished yarn is deposited with a first material and a second material. The surface-finished yarn is obtained by deknitting a single-woven fabric wherein a first material and a second material are deposited onto the upper surface and the lower surface, respectively.

According to yet another embodiment of the present invention, a fabric having multiple inorganic materials is provided. The fabric comprises a surface-finished yarn of the previous embodiment and a common yarn. The common yarn and surface-finished yarn are cowoven to form the fabric with multiple inorganic materials.

According to the present invention, the surface-finished yarn having multiple inorganic materials and the fabric thereof exhibit not only the characteristics of the original yarn and the fabric but also the functions imposed by the inorganic materials deposited thereon, thus provide additional functions to the surface-finished yarn and the fabric thereof.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention can be more fully understood by reading the following detailed description of the embodiment, with reference made to the accompanying drawings as follows:

FIG. 1 is a diagram illustrating a surface-finished yarn having multiple inorganic materials according to one embodiment of the present invention;

FIG. 2 is a diagram illustrating another aspect of a surface-finished yarn having multiple inorganic materials according to one embodiment of the present invention; and

FIG. 3 is a cross sectional view illustrating a fabric of the present invention.

DETAILED DESCRIPTION

Reference will now be made in detail to the present embodiments of the invention, examples of which are illustrated in the accompanying drawings.

A Surface-Finished Yarn Having Multiple Inorganic Materials

Refer to FIG. 1, FIG. 1 is a diagram illustrating a surface-finished yarn having multiple inorganic materials according to one embodiment of the present invention. The surface-finished yarn 100 comprises a yarn 110, a first material 112a and a second material 114a, wherein the plurality of first regions 112 and the plurality of second regions 114 are alternately arranged on the yarn 110 along an axial direction thereof. The first material 112a is disposed onto the plurality of first regions 112 while the second material 114a different from the first material 112a is disposed onto the plurality of second regions 114.

Refer to FIG. 2. FIG. 2 is a diagram illustrating another aspect of a surface-finished yarn having multiple inorganic materials according to one embodiment of the present invention. A first material 212a and a second material 214a of a surface-finished yarn 200 can be disposed onto the upper surface and the lower surface of the yarn 210 respectively, wherein the first material 212 and the second material 214 are alternately arranged on the yarn 210 along an axial direction thereof.

The weight ratio of the first material 112a, 212a to the second material 114a, 214a is 2:8˜5:5. The weight percentage of the overall weight of the first material 112a, 212a and the second material 114a, 214a in the yarn 110, 210 is 0.001˜20 wt %. Forming proper amounts of the first material 112a and the second material 114a by surface finishing allows the yarn 110 of the surface-finished yarn 100 to not only preserve its original properties but also exhibit the additional properties provided by the first material 112a and the second material 114a.

The above-mentioned first material 112a and second material 114a can be metal, metallic oxide, ceramic, or tourmaline. Table 1 exemplifies various inorganic materials of the above-mentioned categories and functions thereof.

TABLE 1
Functions Provided by Selected Inorganic Materials
Material	Composition	function
Metal	Ag	anti-bacteria, anti-odor, thermal insulation, electric
		conductivity, anti-electrostatics
	Ti	Regulate body current
	Ge	generate ions
	Zn	anti-bacteria
	Ni	regulate electric potential
	Cu	regulate electric potential
	Combination of the
	above-mentioned
	metals
Metallic	TiO2	generate free radicals or ion radicals, decompose
oxide		hazardous material
	TiO	generate ions
	SnO2	generate ions
	ZnO	generate far infra-red ray and ions
	Al2O3	generate far infra-red ray
	ZrO2	high corrosion resistance, high thermal resistance, high
		abrasive resistance, electric, magnetic property
	Combination of the
	above-mentioned
	metallic oxides
Ceramic	SiO2	high corrosion resistance, high thermal resistance,
		high abrasive resistance, electric, magnetic, photo,
		heat property
	Barium Titanate	high corrosion resistance, high thermal resistance,
		high abrasive resistance, electric, magnetic property
	PZT (Lead Zirconate	high corrosion resistance, high thermal resistance,
	Titanate)	high abrasive resistance, electric, magnetic property
	SiC	high corrosion resistance, high thermal resistance,
		high abrasive resistance, high toughness
	SiN	high corrosion resistance, high thermal resistance,
		high abrasive resistance, high toughness
	Combination of the
	above-mentioned
	ceramics
	tourmaline	generate ions

A Method for Manufacturing Surface-Finished Yarn Having Multiple Inorganic Materials

The surface-finished yarn 200 in FIG. 2 is used to demonstrate its manufacturing process. Refer to FIG. 3, FIG. 3 is a cross sectional view illustrating a fabric. A first material 212a and a second material 214a different from the first material 212a are deposited onto the upper and the lower surfaces of the fabric 310 respectively. Then, the fabric 310 is deknitted so as to form the surface-finished yarn 210 shown in FIG. 2.

The above-mentioned deposition method can be, for example, physical vapor deposition, wherein a first material source and a second material source can be arranged on the upper and the lower surface of the fabric 310 respectively such that the first material 212a and the second material 214a can be deposited onto the upper and the lower surfaces of the fabric 310 by a sputtering method respectively. More specifically, the first material 212a and the second material 214a can be deposited onto the upper and the lower surfaces of the fabric 310 respectively at the same time.

Ag/Ti Surface-Finished Yarn and Fabric Thereof

The above-mentioned surface-finished yarn 100, 200 can be woven alone or cowoven with a common yarn without inorganic material, thereby forming fabrics having multiple inorganic materials. The fabric of this embodiment can exhibit additional functions provided by the inorganic materials.

According to the above-mentioned embodiments, the Ag target and the Ti target are used as the first material source and the second material source respectively for manufacturing the Ag/Ti surface-finished yarn. The sputtering conditions for metallic Ag and Ti are shown in Table 2.

TABLE 2
Sputtering Conditions of Ag and Ti.
	Sputtering condition
			Background	Process	Sputtering	Transfer
		Sputtering	pressure	pressure	power	speed
Material	Composition	method	(Torr)	(Torr)	(W)	(cm/s)	gas
metal	Ag	DC sputtering	8.5 × 10−6	3.5 × 10−5	50	3	Ar
			7.0 × 10−5	2.0 × 10−3	800	10	Ar
			5.5 × 10−2	5.5 × 10−2	10000	50	Ar
	Ti	DC sputtering	8.5 × 10−6	3.5 × 10−5	60	3	Ar
			7.0 × 10−5	2.0 × 10−3	300	10	Ar
			5.5 × 10−2	5.5 × 10−2	7000	50	Ar

In Table 2, “supttering power” is the power required to ionize the gas (plasmarization), “transfer speed” is the speed that the fabric passes through the sputtering target for sputtering, “background pressure” is the pressure of the vacuumed sputtering chamber (vacuum degree) before the sputtering process, and “process pressure” is the pressure of the sputtering chamber during the sputtering process.

After the above-mentioned Ag/Ti surface-finished yarn has been obtained, the Ag/Ti surface-finished yarn can be woven alone or cowoven with a common yarn thereby forming a fabric for further performance test. The surface-finished yarn and the common yarn are made of polyethylene terephthalate (PET) so that a PET cloth can be formed. The weight ratio of Ag to Ti of the PET cloth is 2:1, and the weight percentage of Ag and Ti in the PET cloth is 6%.

Table 3 shows the test results of the human test of the Ag/Ti PET cloth. Table 4 shows the anti-bacteria test results of the Ag/Ti PET cloth. The anti-bacteria test has been performed according to the test methods specified by American Association of Textile Chemists and Colorists (AATCC) and Japanese Industrial Standards Committee (JISC).

TABLE 3
Human Test of the Ag/Ti PET Cloth
	Test results
		Regular
	Ag/Ti PET	PET cloth
	cloth	(comparative
Test items	(test sample)	sample)
Hand blood	before use	40.7	40.9
flow volume	use PET cloth for 20 min	50.2	46.3
(cc/min)	difference (%)	+23.3	+13.2
Hand blood	before use	9.2	9.2
flow velocity	use PET cloth for 20 min	11.0	9.9
(cm/min)	difference (%)	+19.6	+7.6

TABLE 4
Anti-Bacteria Test of the Ag/Ti PET Cloth.
Test items	Test results	Test methods
Escherichia	Anti-bacteria rate >99.88%	AATCC 100-2004
Pseudomonas	Anti-bacteria rate >99.93%	AATCC 100-1999
aeruginosa
Trichophyton	No bacteria growth on cloth	AATCC 100-1999
mentagrophytes	surface
Pneumobacillus	Anti-bacteria rate >82.38%	AATCC 100-1999
Candidaalbicans	Anti-bacteria rate >99.90%	AATCC 100-1999
Staphylococcus aureus	sterilizing value >3.1	JIS L1902-1998
		quantitative method

Tests results shown in Table 3 and Table 4 indicate that the Ag/Ti PET cloth of the embodiment of the present invention is able to increase the hand blood volume and velocity, thus improve the blood circulation. In addition, Ag in the PET cloth possesses the anti-bacteria ability and can be used to kill bacteria covered by the PET cloth.

Sputtering of Other Materials

Table 5 shows the sputtering conditions of a metallic oxide, for example, TiO₂ and a ceramic, according to the embodiment of the present invention. It is also possible to form a metallic oxide or a ceramic on the surface-finished yarn by controlling the sputtering condition. For example, a surface-finished yarn having two metallic oxides such as TiO₂/ZnO can be formed so as to provide functions of anti-bacteria, hazardous substances decomposition and ion generation at the same time. A surface-finished yarn having two ceramics such as SiO₂/Al₂O₃ can also be formed so as to provide functions of far infra-red radiation generation, thermal insulation, and UV protection.

TABLE 5
Sputtering Conditions of TiO2 and SiO2
	Sputtering condition
				Process	Sputtering	Transfer
	Sputtering	Sputtering	Background	pressure	power	speed
Material	method	method	pressure (Torr)	(Torr)	(W)	(cm/s)
TiO2	RF sputtering	8.0 × 10−6	4.0 × 10−5	80	1 cm/s	Ar
		5.0 × 10−4	7.0 × 10−3	3000	15 cm/s	Ar
		3.5 × 10−2	2.0 × 10−2	8000	30 cm/s	Ar
SiO2	RF sputtering	4.3 × 10−6	3.5 × 10−5	50	0.16 cm/s	Ar
		7.5 × 10−4	1.5 × 10−5	5000	10 cm/s	Ar
		5.5 × 10−2	4.5 × 10−2	10000	20 cm/s	Ar

It will be apparent to those skilled in the art that various modifications and variations can be made to the structure of the present invention without departing from the scope or spirit of the invention. In view of the foregoing, it is intended that the present invention cover modifications and variations of this invention provided they fall within the scope of the following claims.

Claims

1. A surface-finished yarn with multiple inorganic materials, comprising: a yarn, wherein a surface of the yarn comprises a plurality of first regions and a plurality of second regions, wherein the plurality of first regions and the plurality of second regions are alternately arranged on the yarn along an axial direction thereof;a first material disposed onto the plurality of first regions; anda second material disposed onto the plurality of second regions, wherein the second material is different from the first material, wherein a weight percentage of an overall weight of the first material and the second material to the yarn is 0.001˜20 wt %.

2. The surface-finished yarn with multiple inorganic materials of claim 1, wherein the weight ratio of the first material to the second material is 2:8˜5:5.

3. The surface-finished yarn with multiple inorganic materials of claim 1, wherein the first material and the second material are selected from the group consisting of metal, metallic oxide, and ceramic respectively.

4. The surface-finished yarn with multiple inorganic materials of claim 1, wherein the first material or the second material is tourmaline.

5. The surface-finished yarn with multiple inorganic materials of claim 3, wherein the metal material is selected from the group consisting of Ag, Ti, Ge, Zn, Cu and a combination thereof.

6. The surface-finished yarn with multiple inorganic materials of claim 3, wherein the metallic oxide is selected from the group consisting of TiO2, TiO, SnO2, ZnO, Al2O3, ZrO2 and a combination thereof.

7. The surface-finished yarn with multiple inorganic materials of claim 3, wherein the ceramic is selected from the group consisting of SiO2, Barium Titanate, SiN, SiC, Lead Zirconate Titanate and a combination thereof.

8. The surface-finished yarn with multiple inorganic materials of claim 1, wherein the first material and the second material are Ag and Ti respectively, thereby forming the surface-finished yarn for improving blood circulation and anti-bacteria function.

9. A surface-finished yarn with multiple inorganic materials, comprising a first material and a second material different from the first material are deposited thereon, wherein the surface-finished yarn is obtained by deknitting a single-woven fabric, wherein the first material and the second material are deposited on an upper surface and a lower surface thereof respectively.

10. The surface-finished yarn with multiple inorganic materials of claim 9, wherein the first material from a first material source and the second material from a second material source are deposited onto the upper surface and the lower surface of the fabric by a sputtering method respectively.

11. The surface-finished yarn with multiple inorganic materials of claim 9, wherein the first material and the second material are deposited onto the upper surface and the lower surface of the fabric respectively at the same time.

12. The surface-finished yarn with multiple inorganic materials of claim 9, wherein the weight percentage of an overall weight of the first material and the second material in the fabric is 0.001˜20 wt %.

13. The surface-finished yarn with multiple inorganic materials of claim 9, wherein the weight ratio of the first material to the second material is 2:8˜5:5.

14. The surface-finished yarn with multiple inorganic materials of claim 9, wherein the first material and the second material are selected from the group consisting of metal, metallic oxide, and ceramic respectively.

15. The surface-finished yarn with multiple inorganic materials of claim 9, wherein the first material or the second material is tourmaline.

16. The surface-finished yarn with multiple inorganic materials of claim 14, wherein the metal material is selected from the group consisting of Ag, Ti, Ge, Zn, Cu and a combination thereof.

17. The surface-finished yarn with multiple inorganic materials of claim 14, wherein the metallic oxide is selected from the group consisting of TiO2, TiO, SnO2, ZnO, Al2O3, ZrO2 and a combination thereof.

18. The surface-finished yarn with multiple inorganic materials of claim 14, wherein the ceramic is selected from the group consisting of SiO2, Barium Titanate, SiN, SiC, Lead Zirconate Titanate and a combination thereof.

19. The surface-finished yarn with multiple inorganic materials of claim 9, wherein the first material and the second material are Ag and Ti respectively, thereby forming the surface-finished yarn for improving blood circulation and anti-bacteria function.

20. A fabric with multiple inorganic materials, comprising: a surface-finished yarn of any one of the claims 1, and 2-8; anda common yarn, wherein the common yarn and the surface-finished yarn are cowoven thereby forming a fabric with multiple inorganic materials.

21. A fabric with multiple inorganic materials, comprising: a surface-finished yarn of any one of the claims 9˜19; anda common yarn, wherein the common yarn and the surface-finished yarn are cowoven thereby forming a fabric with multiple inorganic materials.