Patent Application
20240035217
The application claims priority to Chinese patent application No. 202110288049.1, filed on Mar. 17, 2021, and No. 202110833327.7, filed on Jul. 22, 2021, the entire contents of which are incorporated herein by reference.
The present invention relates to the field of textiles, in particular to a chenille carpet and a preparation method therefor.
Chenille yarns are spun by taking two strands as core threads, and sandwiching feather yarn by twisting. The chenille yarns have the characteristics of plump down, soft hand feel, thick fabric and light texture, are widely used in the field of home textiles, and are prepared into various carpets by combining with tufting and knitting processes, so as to enrich home experience for people.
The general preparation process route for the chenille carpets currently on the market is as follows: spinning-tufting or circular knitting machine weaving-dropping in water, dyeing and finishing-dehydrating-drying and setting-back sizing (compounding)—cutting-sewing, the process provides the spun yarn as a first layer by tufting in combination with a second layer of a base fabric to prepare a carpet blank, this carpet is then prepared by dyeing the carpet in a dyeing apparatus such as an overflow jar or a flat jar for 100 minutes or so according to the desired color shade, to prepare a carpet having various colors, dry setting by a loose dryer after the carpet is placed in a dryer for 20 minutes or so, finally cut and stitched to make carpet. As Chinese invention CN101139788A discloses a glossy chenille carpet blank and production process comprising the following steps: chenille yarn preparation-weaving chenille yarn into chenille carpet greige-dyeing-finishing-dewatering-drying-setting, the production process is long route, cost and energy consuming.
In the current general chenille carpet preparation process, the dyeing process requires the use of large amounts of water as a carrier for the dye to bind to the yarn fiber molecules or to enter the fiber molecular interstices to prepare a wide variety of colors; taking overflow cylinder dyed chenille carpet as an example, a bath ratio of 1:10 was used. Dyeing a 200 KG chenille carpet requires consumption of 2000 KG of water to make the dye liquor, although the cleaning and recycling of water resources in dyeing plants is possible, the large water loss is undoubtedly a huge waste, and the treatment of sewage waters uses a large amount of chemicals and remains polluting the environment. The dyeing process requires a huge amount of thermal energy to ensure that the process is performed smoothly; the general dyeing process is normal temperature water ramped up to 70-80° C. by a heating rate of 2° C./min, then ramped up to 100-130° C. by a heating rate of 1° C./min, followed by a holding operation of 20-30 min, and finally a cooling treatment; the stained carpet blank must also be dehydrated and dried; the entire procedure is time consuming, much energy and water consumption are great. Chenille made with color spinning is subjected to water fall treatment, except without dye, the rest of the process is the same as above, which results in significant residual waters and chemicals. Currently available chenille carpet preparation processes add 0.8 g/L leveling agent, dyes proportioned accordingly, and 1-3% softener and reductive cleaning agents; although the prepared product feels softer on hand, however, the addition of chemical aids causes some damage to the environment. As Chinese invention patent CN 108301244A, disclosed is a method of preparing a superabsorbent dwarf colored chenille pad, wherein comprising the step of staining a geomat embryo body, a pretreatment soak before dyeing, pre-foaming prior to the addition of Dacron Mat raw body into pre-softened water prior to use, maintaining a 60 degree steam chamber temperature ramp to 90° C. every 2° C./min in the preheating steam chamber, steam bubbling continued 10 min−1° C./min ramp to 110° C. after temperature stabilization around 90° C., steam bubbles for 10 minutes, 3° C./min ramp down to 60° C. and then removed for shelf ready dyeing. Include disperse dyes, leveling agents, softeners, lubricants, finishes, etc. in the ingredients of the dye ink. Such dyeing process is time consuming, energy consuming, water consuming, and chemical aids damage the environment.
In addition, chenille carpets currently on the market have a high shrinkage of the pile, the pile fibres are arranged tightly, the fibers assume a straight state, pile loft and fullness are not good enough, not strong enough water absorption, the inventor's prior invention CN104783632A discloses a process for the profiling of an India manual chenille pad comprising in sequence the following process steps: a dyed chenille yarn—chenilbase treatment—tufted—anti-slip collation—lock treatment, which prepares a chenille carpet that is loop-tipped with less than ideal loft, fullness and water absorption.
Accordingly, there is urgent need for a preparation method for chenille carpets to overcome above-mentioned problems of time-consuming, high energy consumption, high water usage, pollution of environment, insufficient loft, and like that exist with prior art.
In order to solve the above-mentioned technical problem, the present invention provides a chenille carpet and a process for preparing the same.
The object of the present invention is achieved by the following technical solutions:
A chenille carpet comprising a carpet layer, a base fabric layer and a backing layer, the base fabric layer being a chemical fiber knit or woven fabric base fabric layer, a composite base fabric layer formed of chemical fiber knit or woven fabric and/or needle-punched non-woven, or a spunbond non-woven base fabric layer; the carpet layer comprises a loop pile tufted layer formed on one side of the base fabric layer after tufting process on the base fabric layer using chenille yarns; the backing layer comprises a layer of hot melt glue, thermoplastic elastomer, foamed latex, or composite other non-slip functional fabric and material for non-slip treatment; the tufted layer loop is formed into a particulate pile by heating, rolling with a ball rolling machine, steam softening treatment, cooling.
Therein, preferably, tufted layer loop pile's height is 3.5-45 mm.
Preferably, the types of base fabric layers include:
The composite base fabric layer is a needle-punched chemical fiber non-woven having a weight of 50-500 g/m2, the composite base fabric layer is a chemical fiber knit or woven fabric having a weight of 70-350 g/m2;
The knit or woven base fabric layer has a weight of 50-350 g/m2;
The weight of spunbond non-woven base fabric layer was 50-350 g/m2.
Preferably, raw material of base fabric layer may be one or more of chemical fibers, natural fibers, and blended fibers.
Preferably, the chenille yarn of the carpet layer is novel fancy yarn spun by taking two strands spun by staples or filaments with different fineness as core threads, and twisting with different twists to cut feather yarn with different fineness into different widths and sandwich the feather yarn between the two core threads.
Preferably, the chenille yarns of the carpet layer are made of one or more of fibers such as polyester, nylon, cotton, or blended fibers;
Preferably, the chenille yarn of the carpet layer has a yarn count of: 2.6-0.2 Nm;
Preferably, the chenille yarn of the carpet layer has a twist of: 280 T/M-800 T/M;
Preferably, the chenille yarn of the carpet layer has a feather yarn count of: 30D-600D;
Preferably, chenille yarns of carpet layer have a feather yarn width of: 2-15 mm.
The present invention also provides a preparation method for a chenille carpet as previously described, the process comprising the steps of:
Wherein preferably the ball rolling machine type in step S2 comprises a steam type ball rolling machine, an electrically heated diathermic oil type ball rolling machine, or a natural gas heated oil type ball rolling machine;
Preferably, in step S2, a rolling box is arranged inside the ball rolling machine, similar to the structure of a domestic drum washer, the box of the rolling box distributes a plurality of heat dissipation holes for efficient transmission and uniform diffusion of heat during step S2;
Preferably, the rolling boxes in the ball rolling machine in step S2 can be set to be in forward rotation and reverse rotation, the rotational speed can be set at a fixed or variable frequency speed as required, the rolling speed can be adjusted in the range of 10 r/min to r/min, the forward rotation and reverse rotation time can be set as required, the rotation time is 5 min to 120 min, and the forward rotation and reverse rotation directions can be automatically switched in a uniform cycle;
Preferably, in step S2, the carpet blank of the carpet is in a naturally relaxed state in a bin of the ball rolling machine, the carpet blank of the carpet is free to fall after the carpet blank of the carpet reaches a certain height of the inner wall of the bin during rotation with the bin in the ball rolling machine and initiates the next rotation, back and forth;
Preferably, during heating, rolling of the ball rolling machine in step S2, the temperature setting ranges from 70° C. to 200° C.;
Preferably, the steam softening treatment time in step S2 is between 5 s and 600 s;
Preferably, the cooling process in step S2 is to turn off the heating program, the fan naturally reduces the temperature of the carpet blank through the inner loop, and the internal box of the roller machine is still operating in an automatic uniform loop switching the direction of rotation until the cooling program is completed;
Preferably, all actions in step S2 can be operated continuously by manual or automated procedures.
Alternatively, step S2 of a preparation method for chenille carpet of the present invention may be:
S2. Placing carpet blank of step S1 into shaker dryer setting machine, blowing by blower of setting machine and wind-drawing carpet blank into S-type air duct inside setting machine, fluffing and heating carpet by dryer and high frequency rubbing of carpet with S-type air duct during fluffing of carpet.
Wherein preferably the shaker dryer setting machines of step S2 include shaker dryer setting machines of the steam type, shaker dryer setting machines of the electrically heated diathermic oil type, shaker dryer setting machines of the natural gas heated oil type;
Preferably, the shaker dryer setting machine in step S2 has two or more powerful fans with motor power of 20 KW to 40 KW and fan speed of 100 r/min to 1500 r/min; Preferably, in step S2 the shaker dryer setting machine is blown by means of a blower, which is the source of power delivered by the setting machine, to create a wind force to bring the carpet into the setting machine;
Preferably, the first half of the shaker dryer setting machine in step S2 is an S-curved wind duct unit, the second half is a mesh belt conveyor unit, the first half functions as a power source, the second half functions as conveying, guiding, while the shaker dryer setting machine transmit the carpet blank relying on wind forces, the strong wind and the S-bend structure of the air duct form a fluffing state to the carpet blank body in S1, and the S-type air duct structure forms a friction state with the carpet blank;
Preferably, the temperature control range of the shaker dryer setting machine in step S2 is 100° C. to 200° C.;
Preferably, run speed of shaker dryer setting machine in step S2 is between 0.5 m/min and 10 m/min.
Alternatively, step S2 of a preparation method for chenille carpet of the present invention may be:
S2. The carpet blank of step S1 is placed into steam dryer and carpet blank is heated roll dried.
Wherein, preferably, the steam dryer profile and internal configuration in step S2 is similar to that of a large industrial washer: the internally arranged drum, and a plurality of heat dissipation holes are distributed in walls;
Preferably, the steam dryer in step S2 can accommodate a carpet blank weight of KG to 250 KG;
Preferably, the steam dryer drum rotation speed in step S2 is from 29 r/min to 35 r/min;
Preferably, steam dryer heating temperature in step S2 is between 70° C. and 180° C.
Alternatively, step S2 of a preparation method for chenille carpet of the present invention may be:
S2. The carpet blank of step S1 was placed into GQ-3500Z steam-type ball rolling machine internal drum for high temperature rubbing, ball rolling treatment.
In addition, carpet blank may be sprayed with softener processing at levels of 5-g/L softener working fluid and 50-200 g/m2 softener working fluid used after completion of step S2 depending on usage requirements.
Additionally, the chenille carpet prepared according to the present invention can be used in secondary processes such as printing to obtain new products.
The present invention has the following advantageous effects:
The carpet of the present invention does not require significant water resources to be consumed during manufacture; no the use of dyeing tanks during manufacture, nor the use of chemical aids such as reducing cleaners, leveling agents, dyes, smoothing agents and the like used in dyeing ordinary chenille carpets to avoid environmental pollution; the carpet preparation process is short process route and does not consume significant energy; by placing the carpet blank into a ball rolling machine, the carpet blank rotates with the internal rollers of the ball rolling machine and rubs at high temperature to cause the chenille feather yarn fibers to shrink and puff to deform; the core yarn upon high-temperature frictional shrinkage entrains the carpet blank of the carpet pile shrinkage and self-twists into a particulate shape, the feather yarn assumes a natural curled state upon high-temperature frictional shrinkage resulting in higher loft and fullness of the carpet layer.
Among them, 1—carpet layer, 2—base fabric layer, 3—backing layer.
The present invention will now be described in detail in conjunction with examples. The following examples will help those skilled in the art to further understand the invention, but do not in any way limit the invention. It should be noted that several adaptations and modifications may also be made by those skilled in the art without departing from the inventive concept; these all fall within the scope of protection of the present invention.
The present invention provides a chenille carpet and a preparation method therefor.
The chenille carpet comprising a carpet layer, a base fabric layer and a backing layer, the base fabric layer being a chemical fiber knit or woven fabric base fabric layer, a composite base fabric layer formed from chemical fiber knit or woven fabrics and/or needle-punched non-woven, or a spunbond non-woven base fabric layer; the carpet layer comprising a looped tufted layer formed on one side of the base fabric layer after tufting process on the base fabric layer using chenille yarns, the backing layer comprises a layer of hot melt glue, thermoplastic elastomer, foamed latex or composite other non-slip functional fabric and material for non-slip treatment, then process to form a particulate carpet layer, in particular a particulate pile formed after shaking, shaking or rubbing at a certain temperature; heating, rolling with ball rolling machine, steam softening treatment, cooling the tufted layer loop to form particulate piles. Wherein the cooling can be natural cooling, strong cooling, or another achievable cooling.
The preparation method for the chenille carpet comprises the steps of:
Examples of specific applications are provided in the following Examples:
The present example provides a chenille carpet and a preparation method therefor, the preparation steps:
The present example provides a chenille carpet and a preparation method therefor, the preparation steps:
This example provides a chenille carpet and a preparation method therefor, the preparation steps:
In practical applications, the chenille carpet provided by this embodiment may also be provided with only a backing layer, the materials and manner of preparation of the carpet layer, the carpet layer, and the base fabric layer were as described above, and the chenille carpet formed from the carpet layer and the base fabric layer was used with additional non-slip pads. Examples 4 and 5 describe embodiments of chenille carpet consisting of the base fabric layer and the carpet layer.
This example provides a chenille carpet and a preparation method therefor, the preparation steps:
This example provides a chenille carpet and a preparation method therefor, the preparation steps:
Performance Testing
A. Water Absorption Energy Drip Method Comparative Test
The drip diffusion time mainly reflects the speed of moisture absorption by the textile, verifying water absorption energy; a drop of water was dropped on the surface of the sample from a fixed height, recording the time required for the drop of water to contact the specimen until it had no reflected light on the sample. A chenille carpet made using the General Process with 30 grams and stitches with 11 needles/10 mm was compared to the chenille carpet of Example 2, and the drip method test was conducted at the same height of 20 mm using a measurement cup of 20 ml.
The test result is that the chenille fabric made by the current general process has a reflected light disappearance time of 1 second, while the chenille carpet of the present invention has a reflected light disappearance time of 0.7 seconds, and it follows that the chenille carpet of the present invention has better water absorption than the chenille carpet made by the current general process.
B. Loft Comparative Test
Loft versus test premise: same chenille yarn, same tufting process woven to obtain same carpet blank.
Loft versus test requirement terms:
The test sample weaving process was consistent with Example 1: select a polyester filament woven base fabric at 0.45 Nm chenille yarn, tuft gauge ⅜, tuft pile height of 15 mm, tuft stitch of 9 needles/10 cm, and 270 g/m2;
The chenille carpet of Example 1 according to the present invention and the chenille carpet made by the current general process, both 15 cm×15 cm in size, were compared with 3 test samples each of the carpet made by both processes;
The test data are:
In summary, the test data are available: The chenille carpets of the present invention have a lower number of carpet blank piles than the current chenille carpets made by the general process, illustrating that in the making process of the present invention, the shrinkage of the carpet is less relative to the general process chenille carpets, and the loft of the chenille carpets of the present invention is better than the loft of the carpets made by the general process.
The chenille carpet made from Example 1 of the present invention and the chenille carpet made from the current general process, both 20 cm by 20 cm in size, were selected and the two process carpets were compared with 3 pile test points each.
The test data are:
The current general process prepares chenille carpet blank pile sizes:
The carpet pile size of chenille carpet without water and a finishing aid used in the preparation of the present invention is:
In summary, the test data are available: The face pile size of the chenille carpet prepared by the present invention is larger than the pile size of the chenille carpet prepared by the current general process, it is illustrated that in the production process of the present invention, the shrinkage of carpet is less than the shrinkage of the general process chenille carpet, and the loft of the chenille carpet prepared by the present invention is better than the loft of the carpet prepared by the general process.
Combining the above two test items yields that the chenille carpet prepared by the present invention has a better loft than the carpet prepared by the general process.
C. Process Water Comparison Test
The colorized chenille was prepared using the general process technology:
150D/144F DTY feather yarn, Dacron 16s/2 corewire, 0.45 Nm chenille finished yarn count; a polyester filament woven strobel with a yarn count of 300D/96X3 Strand F and a grammage of 270 g/m2 was used; tufting was performed using a tufting machine with a gauge of ⅜, hair height of 15 mm, carpet blank weight of 850 g/m2;
The chenille carpet 100 KG was selected and placed in tub for water wash treatment at 100° C. using water weight of 800 KG.
Preparation of colorispun chenille using the fabrication process of the present invention:
As described in Example 1: 150D/144F DTY feather yarn, Dacron 16s/2 corewire, Nm chenille finished yarn count; a polyester filament woven strobel with a yarn count of 300D/96X3 Strand F and a grammage of 270 g/m2 was used; tufting was performed using a tufting machine with a gauge of ⅜, hair height of 15 mm, carpet blank weight of 850 g/m2;
A 100 KG chenille carpet was also selected for high temperature rubbing, ball rolling, and 20 s steam softening process with steam at temperature of 100° C. and steam flow rate of 0.13 m3/s and steam flow of 2.6 m3 converted to water usage of about 1.55 KG (100° C., 1 atm, density of water vapor is 0.59764 KG/m3) in GQ-3500Z steam roller internal drum.
In view of the comparative tests, the fabrication process of the present invention uses less water than the general process technology.
D. Carpet Pile Support Force Comparative Test
Using general process technology, core yarn was polyester 15S/2, feather yarn 150D/288F DTY, feather yarn width 8 mm, chenille yarn was made by spinning machine with finished yarn count 0.7 Nm; tufted weaving was performed using a polyester filament woven base fabric having a grammage of 130 g/m2, a loop tufting machine having a gauge of ⅜, tuft pile height of 30 mm, carpet weight of 1350 g/m2, water wash at 105° C. in the dyeing tank, to prepare chenille carpet.
Using the preparation process of the present invention, as described in Example 2, the core yarn was polyester 15S/2, the feather yarn was 150D/288 FDTY, the feather yarn width was 8 mm, chenille yarn was made by spinning machine with a finished yarn count of 0.7 Nm; tufted weaving was performed using a polyester filament woven base fabric having a grammage of 130 g/m2, a loop tufting machine having a gauge of ⅜, a tuft pile height of 30 mm, an embryonic carpet weight of 1350 g/m2, and the tufted embryonic carpet was placed into a GQ-3500Z steam roller inside the internal drum for 15 minutes of heating, rolling friction, 30 s of steam softening treatment, natural cooling to prepare chenille carpet.
Comparative Test Methods:
Test data: chenille carpet block made by General Process Technology, height of 19 mm from bottom end of platen to horizontal table; a chenille carpet block made by the process according to the present invention was 22 mm in height from the bottom end of the platen to the horizontal table.
In summary, the face pile support force of the chenille carpet made according to the present invention is stronger.
E. Comparison Test for Dyeing Chemical Aid Usage
The general process technology is selected to prepare a spun hump chenille carpet and the process of the present invention is used to prepare a spun hump chenille carpet.
General Process Technology to Prepare Color Spun Chenille Carpets by Water Wash Treatment:
Chenille feather yarn 150D/144F DTY, Dacron 16s/2 core, Chenille finished yarn count 0.45 Nm; a polyester filament woven strobel with a yarn count of 300D/96X3 Strand F and a grammage of 270 g/m2 was used; tufting was performed using a tufting machine with a needle gauge of ⅜, hair height of 15 mm, carpet blank weight of 850 g/m2, then a 50 KG carpet blank was taken into a dyeing tank, bath ratio of 1:10, 500 KG water was added to the overflow tank, warmed to 100° C. for water wash treatment, 5 KG softener for gentle treatment, then dewatered, dried and finished to prepare chenille carpet.
The Inventive Preparation Process Prepare Colorized Chenille Carpet by Rolling Ball Treatment:
Example 1: Chenille feather yarn 150D/144F DTY, Corewire Dacron 16s/2, Chenille finished yarn count 0.45 Nm; a polyester filament woven strobel with a yarn count of 300D/96X3 Strand F and a grammage of 270 g/m2 was used; tufting is performed using a tufting machine with a gauge of ⅜, a hair height of 15 mm, carpet blank weigh 850 g/m2, the 50 KG carpet blank was then placed into a GQ-3500Z steam roller internal drum, the rotation speed of the internally arranged drum of the ball rolling machine was set to 18 r/min, the ball rolling machine heating temperature was set to 100° C., the heating rolling time was set to 7 minutes, the positive, inversion times were 3.5 minutes each, steam softening treatment: steam temperature was set to 100° C., steam release time was 20 s, steam and heating modules were turned off, natural cooling to 70° C., cooling time was 5 min, and then finishing was performed to prepare chenille carpet.
Comparing chenille carpets made by the general process technology and the preparation process according to the present invention yields that the chenille carpets made according to the present invention have no dyeing aid such as softener.
Preferred embodiments of the invention are described in detail above. It will be appreciated by those skilled in the art that The present invention is not limited by the embodiments described above, the examples described above and described in the specification are merely to illustrative of the principles of the present invention, but the invention is susceptible to variations and modifications which fall within the scope of what is claimed without departing from the spirit and scope of the invention. The claimed scope of the invention is to be accorded the appended claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202110288049.1 | Mar 2021 | CN | national |
| 202110833327.7 | Jul 2021 | CN | national |
| Number | Date | Country | |
|---|---|---|---|
| Parent | PCT/CN2021/131299 | Nov 2021 | US |
| Child | 18368527 | US |
