Cotton and bi-component composite polyester blended four-way stretch fabric and preparation method thereof
By employing a method for preparing a four-way stretch fabric blended from cotton and bicomponent composite polyester staple fiber, and using processes such as long-wheel enzyme desizing, loose bleaching and dyeing, and overfeed setting, the problem of insufficient warp elasticity in the bicomponent composite polyester staple fiber blended fabric was solved, achieving bi-directional elasticity and dimensional stability in both warp and weft directions, thereby improving the comfort and operability of the fabric.
Patent Information
- Application Number
- CN202511525461.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-24
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2045-10-24
AI Technical Summary
Two-component composite polyester staple fiber blended fabrics are difficult to achieve good elasticity in both warp and weft directions, especially insufficient elasticity in the warp direction. Furthermore, traditional methods have problems such as difficulty in dyeing, complex manufacturing, and unstable fabric dimensions.
The preparation method of four-way stretch fabric made of cotton and bicomponent composite polyester staple fiber includes processes such as long-wheel enzyme desizing, loose bleaching and dyeing, and overfeed setting. By desizing and dyeing under tension and no tension in the warp direction, combined with high-temperature overfeed setting and over-shrinkage pre-shrinking, the fabric is ensured to shrink in a relaxed state, thereby improving warp and weft elasticity and dimensional stability.
It achieves good elasticity in both warp and weft directions, with a warp elastic elongation of 10%~15% and a weft elastic elongation of 10%~18%, and a residual elastic elongation of ≤7%. The fabric has good dimensional stability, a shrinkage rate of -3.0%~0%, is wrinkle-resistant and easy to care for, has high smoothness after washing, is quick-drying and moisture-wicking, and has a soft hand feel.
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Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to a kind of cotton and bicomponent composite polyester blended four-way stretch fabric and its preparation method, belong to textile dyeing and finishing technical field. BACKGROUND
[0002] Elastic fabric garment is loved by consumers due to its good ductility, stretchiness, body movement, and improved wearing comfort and freedom of movement.
[0003] Woven elastic fabric can be divided into spandex (polyurethane elastic fiber) elastic fabric, polyolefin-based elastic fiber (XLANCE) fabric, modified polyester or bicomponent composite polyester elastic fiber (such as PET / PTT bicomponent composite polyester elastic fiber T400, PBT / PTT bicomponent composite polyester elastic fiber T800, SPH and BEY, which are two different viscosity polyester parallel composite spun yarns) elastic fabric, and natural elastic fabric without elastic fiber produced by special dyeing and finishing process (such as pure cotton without Lekar natural elastic).
[0004] Traditional spandex core yarn woven fabric has problems such as dyeing difficulty, complex manufacturing, unstable fabric size, easy aging, and easy arching deformation. Composite polyester elastic filament (such as T400, T800, etc.) is a filament fabric, which is directly applied to fabric, has stronger chemical fiber feeling than short yarn, and has less comfortable and soft feeling than short yarn. If used as a core yarn, the spinnable yarn count is limited by the core yarn, and the cost of the core yarn is high. The current bicomponent composite polyester short fiber blended fabric is limited to weft elastic fabric, and the longitudinal ductility is weak, and the warp elasticity is difficult to achieve. SUMMARY
[0005]
Technical problem
[0006]
Technical solution
[0007] In an embodiment of the present application, the yarn fineness of the cotton and double-component composite polyester staple fiber blended four-way stretch fabric is 25-60 S; the cotton and double-component composite polyester staple fiber blended yarn is woven.
[0008] In an embodiment of the present application, the woven fabric is selected from one of plain fabric, twill fabric and satin fabric.
[0009] In an embodiment of the present application, the double-component composite polyester staple fiber is PET / PTT double-component composite elastic staple fiber.
[0010] A second object of the present application is to provide a preparation method of the above blended four-way stretch fabric, comprising the steps of singeing the grey fabric, long-drum desizing, loose bleaching, loose dyeing, dehydration, width opening, high-temperature super-feeding setting and super-shrinkage preshrinking to obtain the blended four-way stretch fabric.
[0011] The grey fabric is cotton and double-component composite polyester staple fiber blended grey fabric.
[0012] In an embodiment of the present application, the width of the grey fabric is 1.15-1.25 times the width of the finished fabric, and the weft density of the grey fabric is 80-85% of the weft density of the finished fabric. The suitable width and weft density leave suitable warp and weft elastic shrinkage space for the subsequent dyeing and finishing process.
[0013] The long-drum desizing is desizing on a continuous equipment, and the continuous equipment includes a cloth feeding device, a padding device, a piling device, a washing device and a drying device.
[0014] In an embodiment of the present application, the desizing solution is prepared by using desizing enzyme, refining agent and water, the singed grey fabric is padded with the desizing solution, and the desizing solution is subjected to piling, washing and drying to obtain the desized grey fabric.
[0015] In an embodiment of the present application, the tension is applied to the grey fabric in the warp direction during desizing; the tension is 0.2-0.4 Mpa. Desizing under a certain warp direction tension is beneficial to increasing the shrinkage space of the weft yarn, so that the fabric weft direction obtains greater elasticity.
[0016] In an embodiment of the present application, the desizing enzyme concentration of the desizing solution is 4-7 g / L; the enzyme activity of the desizing enzyme is 4000 U / mL±20%; the refining agent concentration is 4-7 g / L; the pH value of the desizing solution is 6-7; and the pH of the desizing solution is adjusted by glacial acetic acid.
[0017] In an embodiment of the present application, the padding pressure is 0.3-0.6 Mpa; the liquid retention rate is 60%±5%; the piling temperature during desizing is 80-90℃, and the piling time is 25-40 min.
[0018] In one embodiment of the present application, the desizing speed is 60-80 m / min; and the cloth-falling and rolling pressure is 0.1-0.3 Mpa.
[0019] Loose bleaching and loose dyeing refer to the state of bleaching and dyeing of the fabric under no tension or low tension. Bleaching and dyeing under no tension ensure no additional tension stretching, which is beneficial to the full relaxation and contraction of the fibers in the yarn, and is beneficial to the release of internal stress and the improvement of fabric dimensional stability.
[0020] The scheme of the present application is widely applicable to the bleaching and dyeing methods, and the conventional loose bleaching and loose dyeing methods can be well applied in the present application.
[0021] In one embodiment of the present application, the loose bleaching device is selected from one of an air flow cylinder, an overflow cylinder and a sand washing cylinder.
[0022] In one embodiment of the present application, the loose dyeing device is selected from one of an air flow cylinder, an overflow cylinder and a sand washing cylinder.
[0023] Overfeed setting refers to the state that the feeding speed of the fabric is higher than the machine tentering speed in the setting process, so that the fabric is in a relaxed state during the heat setting.
[0024] Under the high temperature condition, the warp and weft of the fabric are both in a relaxed state during the high temperature setting through the warp cloth feeding and the weft needle plate tentering shrinkage, so as to shrink the tentering, improve the weft density, improve the elasticity of the warp and weft, and stabilize the fabric shrinkage.
[0025] In one embodiment of the present application, the high temperature overfeed setting condition is: temperature 150-170℃; up and down overfeed rate 20-32%; left and right brush overfeed rate 25-40%.
[0026] In one embodiment of the present application, the high temperature overfeed setting speed is 30-45 m / min; and the setting needle plate tentering is reduced by 2-6 cm according to the tentering of the dyed fabric.
[0027] In one embodiment of the present application, the fabric is padded with a softener aqueous solution with a concentration of 20-30 g / L during the high temperature overfeed setting; the padding rate is 50%-70%; the padding machine pressure is 0.2-0.4 Mpa; the pH of the softener aqueous solution is 6-7; and the pH of the softener aqueous solution is adjusted by glacial acetic acid.
[0028] In one embodiment of the present application, the softener is a hydrophilic organic silicon softener.
[0029] In one embodiment of the present application, the super-feed rate of the super-shrinkage pre-shrunk blanket is 8% to 15%, the blanket temperature is 120 DEG C to 130 DEG C; the shrinkage rate is 5.5% to 7.5%; the super-shrinkage pre-shrunk speed is 30 to 40 m / min; the felt extrusion amount is 23 mm to 27 mm; and the felt temperature is 120 DEG C to 135 DEG C.
[0030] Pre-shrinking is used to adjust the shrinkage degree of the warp and weft directions of the fabric, and the super-shrinkage pre-shrinking can increase the elasticity of the warp and weft directions, improve the dimensional stability of the fabric, and control the shrinkage rate.
[0031] A third object of the present application is to provide the use of the above-mentioned blended four-way stretch fabric in the field of textiles.
[0032] Advantages: The cotton double-component composite polyester staple blended four-way stretch fabric is successfully prepared, the warp elastic elongation rate is 10% to 15%, the weft elastic elongation rate is 10% to 18%, and the elastic residual elongation rate is less than or equal to 7%, thus solving the problems that the double-component composite polyester staple blended fabric has no warp elasticity and it is difficult to achieve good warp and weft elasticity, and realizing the comfortable two-way elasticity of the warp and weft without containing spandex filaments.
[0033] The cotton double-component composite polyester staple blended four-way stretch fabric has good dimensional stability, the shrinkage rate is-3.0% to 0%, is wrinkle-resistant and easy to manage, and the fabric flatness (AATCC 124-2018 t 5 times of washing (before ironing)) is greater than or equal to 3.0 levels after washing.
[0034] The cotton double-component composite polyester staple blended four-way stretch fabric is moisture-absorbing and quick-drying, and the water drop diffusion performance (AATCC 79-2010, drop method) is less than or equal to 5 s.
[0035] The cotton double-component composite polyester staple blended four-way stretch fabric has soft and natural luster, a fluffy and soft hand feeling, and a cashmere-like hand feeling. The preparation method has a short production process, is simple to operate, and is easy to control. DETAILED DESCRIPTION
[0036] The process methods used in the following examples are conventional methods unless otherwise specified.
[0037] High-temperature desizing enzyme 3H is produced by Nantong Xinhua Chemical Co., Ltd., and the enzyme activity is 4000 U / mL±10%. Hydrophilic silicone softener SIH is produced by Anguo Chemical (China) Co., Ltd. Refining agent CPB-2 is produced by Dorn Biotechnology Co., Ltd. Rapid-dyeing agent KR-9DW is produced by Shijiazhuang Kenshu Chemical Co., Ltd. Rapid-dyeing agent KR-9BK is produced by Shijiazhuang Kenshu Chemical Co., Ltd. Anti-wrinkle agent XL is produced by Nantong Xinhua Chemical Co., Ltd. Refining agent CPA-3 is produced by Dorn Biotechnology Co., Ltd. PET / PTT double-component composite polyester elastic staple fiber Shupian is produced by Shanghai Haikai Biological Material Co., Ltd.
[0038] Example 1 A cotton bicomponent composite polyester staple fiber blended four-way stretch fabric, 40 S 65% cotton 35% Shu elastic 40 S 65% cotton 35% Shu elastic 130 ends / inch 90 ends / inch, 2 / 2 twill, finished effective width 56 inches.
[0039] The preparation method comprises the steps of: grey fabric weaving → singeing → long car enzyme desizing → loose bleaching → loose dyeing → dehydration → width opening → high-temperature super-feeding setting → super-shrinkage preshrinking Grey fabric weaving: according to the design of finished fabric with 13% elastic elongation in the warp direction and 13% elastic elongation in the weft direction, the grey fabric width should be 168 cm, and the weft density of the grey fabric is 77 ends / inch, and the grey fabric is woven; Long car enzyme desizing: a desizing solution is prepared by using high-temperature desizing enzyme 3H, refining agent CPB-2 and water, and the desizing solution is padded on the singed grey fabric, and then the grey fabric is subjected to stacking, washing and drying to obtain desized grey fabric; the concentration of high-temperature desizing enzyme 3H in the desizing solution is 6 g / L; the enzyme activity of high-temperature desizing enzyme 3H is 4000 U / mL±10%; the concentration of refining agent CPB-2 is 6 g / L; the pH value of the desizing solution is 6-7; the pH value of the desizing solution is adjusted by glacial acetic acid; the tension in the warp direction of the grey fabric during desizing is 0.3 Mpa, the pad pressure of the desizing enzyme tank is 0.4 MPa, the stacking temperature is 85℃, the stacking time is 30 min, the pad pressure of the washing tank is 0.2 Mpa, the pad pressure of the last washing tank is 4 Mpa, and the pressure of the fabric falling and rolling is 0.2 Mpa; the speed of the desizing machine is 70 m / min; Loose bleaching is performed by using an air flow dyeing machine, and loose dyeing is performed by using an air flow dyeing machine; High-temperature super-feeding setting: the production equipment is an ASM503 heat setting machine produced by Jiangsu Haida Textile Machinery Co., Ltd., the working liquid is a hydrophilic organic silicon softener SIH aqueous solution with a concentration of 25 g / L, the pad roll pressure is 0.3 Mpa, the roll-off rate is 60%, the pH value is 6-7, the oven temperature is 160℃, the speed of the machine is 30 m / min, the up-down super-feeding rate is 25%, the left-right brush super-feeding rate is 27%, and the width of the middle roll is 142 cm; Super-shrinkage preshrinking: the production equipment is a Wolly preshrinking finishing combined machine, the speed of the machine is 35 m / min, the felt temperature is 130℃, the felt extrusion amount is 25 mm, the nap temperature is 125℃, the nap super-feeding rate is 12%, the cloth shrinking rate is 6.5%, the weft density of the falling fabric is 90-91 ends / inch, and the preshrinking width is 144-146 cm.
[0040] The test results of the cotton bicomponent composite polyester staple fiber blended four-way stretch fabric prepared are shown in Table 1.
[0041] Table 1 Test results of cotton bicomponent composite polyester staple fiber blended four-way stretch fabric produced in Example 1
[0042] Example 2 A cotton bicomponent composite polyester staple fiber blended four-way stretch fabric, 40 S 60% cotton 40% Shuobolian 40 S 60% cotton 40% Shuobolian 120 ends / inch 80 ends / inch, plain weave, effective fabric width 56 inches.
[0043] The preparation method comprises the steps of: Fabric weaving → singeing → long car enzyme desizing → loose bleaching → loose dyeing → dehydration → opening → high-temperature super-feeding setting → super-shrinkage pre-shrinking Fabric weaving: according to the design of 12% of the finished fabric's warp elastic elongation and 16% of the finished fabric's weft elastic elongation, the fabric width and the weft density of the fabric are calculated, and the fabric is woven; Long car enzyme desizing: a desizing solution is prepared by using high-temperature desizing enzyme 3H, refining agent CPB-2 and water, the desizing solution is padded on the singed fabric, and the desized fabric is obtained through stacking, washing and drying; the concentration of high-temperature desizing enzyme 3H in the desizing solution is 5 g / L; the enzyme activity of high-temperature desizing enzyme 3H is 4000 U / mL±10%; the concentration of refining agent CPB-2 is 5 g / L; the pH value of the desizing solution is 6-7; the pH value of the desizing solution is adjusted by glacial acetic acid; the warp tension of the fabric during desizing is 0.2 Mpa, the rolling pressure of the desizing enzyme tank is 0.5 MPa, the stacking temperature is 80℃, the stacking time is 25 min, the rolling pressure of the washing tank is 0.2 Mpa, the rolling pressure of the last washing tank is 4 Mpa, and the fabric falling and rolling pressure is 0.3 Mpa; the speed of the desizing machine is 65 m / min; Loose bleaching is performed by using an air flow dyeing machine, and loose dyeing is performed by using an air flow dyeing machine; High-temperature super-feeding setting: the production equipment is an ASM503 heat setting machine produced by Jiangsu Haida Textile Machinery Co., Ltd., the working liquid is a hydrophilic organic silicon softener SIH aqueous solution with a concentration of 40 g / L, the rolling pressure is 0.4 Mpa, the pH value is 6-7, the oven temperature is 150℃, the speed of the machine is 35 m / min, the up-down super-feeding rate is 28%, and the left-right brush super-feeding rate is 30%; Super-shrinkage pre-shrinking: the production equipment is a Wolly pre-shrinking finishing combined machine, the speed of the machine is 38 m / min, the felt temperature is 135℃, the felt extrusion amount is 27 mm, the nap temperature is 128℃, the nap super-feeding rate is 13%, and the cloth shrinking rate is 7.0%.
[0044] Example 3 A cotton bicomponent composite polyester staple fiber blended four-way stretch fabric, 50 S70% cotton 30% spandex * 50 S 70% cotton 30% spandex * 120 ends / inch * 90 ends / inch, plain weave, effective fabric width 56 inches.
[0045] The preparation method comprises the steps of: Fabric weaving → singeing → long car enzyme desizing → loose bleaching → loose dyeing → dehydration → opening → high-temperature super-feeding setting → super-shrinkage pre-shrinking Fabric weaving: according to the design of 13% elongation in the warp direction and 15% elongation in the weft direction of the finished fabric, the fabric width and weft density of the fabric are calculated, and the fabric is woven; Long car enzyme desizing: a desizing solution is prepared by using high-temperature desizing enzyme 3H, refining agent CPA-3 and water, the desizing solution is padded on the singed fabric, and after stacking, washing and drying, the desized fabric is obtained; the concentration of high-temperature desizing enzyme 3H in the desizing solution is 7 g / L; the enzyme activity of high-temperature desizing enzyme 3H is 4000 U / mL±10%; the concentration of refining agent CPA-3 is 7 g / L; the pH value of the desizing solution is 6~7; the pH value of the desizing solution is adjusted by glacial acetic acid; the tension in the warp direction of the fabric during desizing is 0.4 Mpa, the pad pressure of the desizing enzyme tank is 0.3 MPa, the stacking temperature is 90℃, the stacking time is 40 min, the pad pressure of the washing tank is 0.2 Mpa, the pad pressure of the last washing tank is 4 Mpa, and the pressure of the fabric falling and rolling is 0.1 Mpa; the speed of the desizing machine is 75 m / min; Loose bleaching is carried out by using an air flow dyeing machine, and loose dyeing is carried out by using an air flow dyeing machine; High-temperature super-feeding setting: the production equipment is an ASM503 heat setting machine produced by Jiangsu Haida Textile Machinery Co., Ltd., the working liquid is a hydrophilic organic silicon softener SIH aqueous solution with a concentration of 30 g / L, the pad roll pressure is 0.2 Mpa, the pH value is 6~7, the oven temperature is 170℃, the speed of the machine is 45 m / min, the up-down super-feeding rate is 32%, and the left-right brush super-feeding rate is 38%; Super-shrinkage pre-shrinking: the production equipment is a Wolly pre-shrinking finishing combined machine, the speed of the machine is 32 m / min, the felt temperature is 120℃, the felt extrusion amount is 23 mm, the nap temperature is 122℃, the nap super-feeding rate is 10%, and the cloth shrinking rate is 5.5%.
[0046] Comparative Example 1 A kind of cotton bicomponent composite polyester staple fiber blended fabric, the preparation method comprises the steps of: Fabric weaving → singeing → long car one-bath scouring and bleaching → mercerizing → long car one-bath dispersing and active dyeing → setting → pre-shrinking Long car one bath scouring and bleaching: car speed 60 m / min, trough, high liquid temperature 50℃, stacking temperature 75~80℃, stacking time 60 min, tension 0.2 MPa, scouring and bleaching liquid formula: NaOH concentration 25 g / L, hydrogen peroxide concentration 15 g / L, rapid agent KR-9DW concentration 15 g / L, rapid agent KR-9BK concentration 10 g / L.
[0047] Mercerizing: using cloth clasp mercerizing machine, car speed 60±5 m / min, mercerizing liquid is NaOH aqueous solution with concentration 175 g / L, tension 0.2 MPa, car door width in mercerizing 155 cm; Long car one bath dyeing of disperse and reactive dyes: car speed 50 m / min, pre-drying room 1 room temperature 70℃, pre-drying room 2 room temperature: 90℃, pre-drying room 3 room temperature 110℃, drying cylinder temperature 95℃, steaming box temperature 103℃, water seal temperature 45℃, post car car speed 50 m / min, soaping agent 15 g / L, 1#~4# washing box temperature 60℃, 5# washing box temperature 45℃, 1#~4# washing box temperature 60℃, 6# washing box temperature 90℃, 7# washing box temperature 95℃, 8#~9# washing box temperature 45℃, 10#~11# washing box temperature 45℃; Setting: production equipment is ASM503 type heat setting machine produced by Jiangsu Haida Textile Machinery Co., Ltd., working liquid is hydrophilic organic silicon softener SIH aqueous solution with concentration 30 g / L, nip pressure 0.3 Mpa, nip rate 60%, pH value 6~7; drying room temperature 160℃, car speed 65 m / min, car door width 142 cm; Pre-shrinking: production equipment is Wolly pre-shrinking finishing combined machine, car speed 70 m / min, rubber blanket temperature 130℃, rubber blanket extrusion amount 25 mm, wool blanket temperature 125℃, cloth shrinking rate 2%, falling cloth weft density 90~91 root / inch, pre-shrinking door width 144~146 cm.
[0048] Comparative Example 2 A kind of cotton double component composite polyester short fiber blended fabric, the difference between the preparation method and embodiment 1 is only that long car desizing in embodiment 1 is changed into loose desizing: The production equipment of loose desizing is air flow cylinder, desizing liquid formula: anti-wrinkle agent XL concentration 1 g / L, refining agent CPA-3 concentration 3 g / L, high temperature desizing enzyme 3H concentration 3 g / L, glacial acetic acid concentration 1 g / L; desizing temperature 98℃, desizing time 45 min.
[0049] Table 2 test results of cotton double component composite polyester short fiber blended fabric prepared in embodiment and comparative example
[0050] The dimensional stability and elasticity data of the cotton bicomponent composite polyester staple fiber blended fabric prepared in Example 1 and Comparative Examples 1 and 2 are shown in Table 2. Comparative Example 1 uses tight type long-dyeing, and the warp elasticity of the prepared fabric is low, which cannot meet the requirement of warp elastic fabric. Comparative Example 2 uses loose type desizing, and the weft elasticity of the fabric is insufficient. Compared with Comparative Example 2, Example 1 applies tension in the warp direction in the desizing process, and the warp elasticity elongation of the final blended fabric product is improved, and the weft elasticity elongation is greatly improved.
[0051] The warp and weft elasticity elongation of the blended fabric prepared in Example 1 are both greater than 10%, which realizes the four-way stretch effect of the cotton bicomponent composite polyester staple fiber blended fabric, and at the same time, the fabric has good dimensional stability, is flat and non-iron, and has excellent moisture absorption performance.
[0052] The above provided examples are not used to limit the scope covered by the present application, and the described steps are not used to limit the execution order. The obvious improvements of the present application made by the person skilled in the art in combination with the existing common knowledge also fall within the protection scope defined by the claims of the present application.
Claims
1. A four-way stretch fabric blended from cotton and bicomponent composite polyester staple fiber, characterized in that, The blended four-way stretch fabric is a woven fabric; its raw material composition is as follows: 30%~60% bicomponent composite polyester staple fiber content, 40%~70% cotton content; warp and weft shrinkage rates of -3.0%~0%; warp elastic elongation of 10%~15%; weft elastic elongation of 10%~18%; and residual elastic elongation of ≤7%.
2. The blended four-way stretch fabric according to claim 1, characterized in that, The yarn fineness of the four-way stretch fabric made of cotton and bicomponent composite polyester staple fiber blend is 25~60 S; it is woven from cotton and bicomponent composite polyester staple fiber blend yarn; the bicomponent composite polyester staple fiber is PET / PTT bicomponent composite elastic staple fiber.
3. The method for preparing the blended four-way stretch fabric according to claim 1, characterized in that, The process includes: singeing the greige fabric → long-wheel enzyme desizing → loose bleaching → loose dyeing → dehydration and opening → overfeed setting → over-shrinkage pre-shrinking to obtain a blended four-way stretch fabric.
4. The preparation method according to claim 3, characterized in that, A desizing solution is prepared using desizing enzyme, refining agent, and water. The singed fabric is then impregnated with the desizing solution, stacked, washed, and dried to obtain the desized fabric. Tension is applied in the warp direction of the fabric during desizing; the tension is 0.2~0.4 MPa.
5. The preparation method according to claim 4, characterized in that, The desizing enzyme concentration in the desizing solution is 4~7 g / L; the enzyme activity of the desizing enzyme is 4000 U / mL±20%; the refining agent concentration is 4~7 g / L; the pH value of the desizing solution is 6~7; the pH of the desizing solution is adjusted with glacial acetic acid; the padding pressure is 0.3~0.6 MPa; and the liquid carry-over rate is 60%±5%.
6. The preparation method according to claim 4, characterized in that, The desizing temperature is 80℃~90℃, and the stacking time is 25~40 min.
7. The preparation method according to claim 3, characterized in that, Loose bleaching and loose dyeing are performed by bleaching and dyeing the fabric under no-tension or low-tension dyeing conditions.
8. The preparation method according to claim 3, characterized in that, The conditions for overfeeding for shaping are: temperature 150~170℃; overfeed rate of 20~32% for the upper and lower parts; and overfeed rate of 25~40% for the left and right brushes.
9. The preparation method according to claim 3, characterized in that, The overfeed rate of the pre-shrinked felt is 8%~15%, the felt temperature is 120℃~130℃, the shrinkage rate is 5.5%~7.5%, the rubber blanket compression is 23 mm~27 mm, and the rubber blanket temperature is 120℃~135℃.
10. The application of the cotton and bicomponent composite polyester staple fiber blended four-way stretch fabric as described in claim 1 or 2 in the textile field.
Citation Information
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