A method for preparing an elastic, abrasion-resistant, cotton-feel fabric

Abstract

This application discloses a method for preparing an elastic, abrasion-resistant, cotton-feel fabric, relating to the field of textile fabric technology, including the following steps: Step 1, yarn preparation: 166D / 96F nylon air-textured yarn is used as the warp yarn, and 70D / 51F nylon false-twist textured yarn and bare spandex yarn are used to coat the spandex to obtain the weft yarn; Step 2, warping treatment; Step 3, weaving the greige fabric; Step 4, desizing and washing: A tension-free desizing machine and desizing agent are used, controlling the greige fabric movement speed at 30m / min, and keeping the greige fabric in the tension-free desizing agent for 5-8 minutes with the assistance of the desizing agent, followed by washing and drying; Step 5, pre-setting: A Monfus setting machine is used, controlling the temperature at 200℃, and controlling the stretching of the desized fabric from the tension-free desizing machine to 5-7 inches, with a machine speed of 15m / min, for 1.5 minutes of heat setting to obtain the pre-set fabric; Step 6, dyeing treatment; Step 7, drying treatment; Step 8, waterproof finishing. This application has the effect of improving the elasticity of the obtained elastic and abrasion-resistant cotton-feel fabric while also taking into account its abrasion resistance.

Description

Technical Field

[0001] This application relates to the field of textile fabric technology, and in particular to a method for preparing an elastic, abrasion-resistant, cotton-feel fabric. Background Technology

[0002] Spandex fiber is a type of elastic fiber. Elastic fibers are collectively known as SPANDEX internationally, while in my country, they are commercially known as spandex. Research on spandex began in the 1930s. In clothing applications, it is commonly used to blend spandex elastic yarn with other fibers to create elastic yarn. Due to its high elasticity, spandex fiber can typically stretch 4-7 times its original length. Under a tensile force of 2 times its original strength, its recovery rate is almost 100%, and at a stretch of 500%, its recovery rate is 95-99%, a level unmatched by other fibers. The excellent properties of spandex fiber make its fabrics comfortable to wear, adaptable to the body's curves, and with minimal restriction on the body. The fabrics also have excellent wrinkle resistance.

[0003] This demonstrates that existing fabrics leverage the advantages of spandex, namely, excellent elasticity, strength 2-3 times higher than latex yarn, finer linear density, and greater resistance to chemical degradation.

[0004] However, conventional spandex elastic fabrics are not a panacea. In particular, they have certain disadvantages compared to elastic fabrics in terms of acid and alkali resistance, sweat resistance, seawater resistance, dry cleaning resistance, and abrasion resistance. Although conventional spandex elastic fabrics have been widely used in the market, the long-term stretching and deformation of spandex during application has led to problems such as wear, whitening, pilling, and fuzzing in some key areas, causing some inconvenience to consumers and requiring improvement. Summary of the Invention

[0005] In view of this, the purpose of this application is to provide a method for preparing an elastic and abrasion-resistant cotton-like fabric, so as to achieve the goal of improving elasticity while also taking into account abrasion resistance. The specific solution is as follows:

[0006] A method for preparing an elastic, abrasion-resistant, cotton-feel fabric includes the following steps:

[0007] Step 1, Yarn preparation: Take 166D / 96F nylon air textured yarn as warp yarn, and take 70D / 51F nylon false twist textured yarn and bare spandex yarn to obtain weft yarn by covering spandex.

[0008] Step 2, Warping treatment: Use a warping machine to warp the nylon air textured yarn into a whole beam, and control the running speed of the warping machine to be 400-500m / min;

[0009] Step 3, weaving the fabric: Using the back-and-forth movement of the reed and the up-and-down movement of the heald frame, the rotation speed of the warp and weft yarns is controlled at 350 rpm, so that the warp and weft yarns interweave and obtain a plain weave fabric.

[0010] Step 4, Desizing and Washing: Using a tension-free desizing machine and desizing agent, control the fabric movement speed to 30m / min, and keep the fabric in the tension-free desizing agent for 5-8 minutes with the assistance of the desizing agent, then wash and dry.

[0011] Step 5, Pre-setting: Using a Monfus setting machine, the temperature is controlled at 200℃, and the fabric is stretched 5-7 inches from the desizing machine at a speed of 15m / min and heat-set for 1.5min to obtain the pre-set fabric.

[0012] Step 6, Dyeing treatment: Pass the pre-shaped fabric into the overflow dyeing machine for dyeing to obtain dyed fabric;

[0013] Step 7, Drying treatment: The dyed fabric is fed into the Monfuji setting machine. The feeding speed of the dyed fabric is controlled at 40m / min and the setting temperature of the Monfuji setting machine is 190℃. The setting is carried out for 1.5 minutes to obtain the original width set fabric.

[0014] Step 8, Waterproofing Finishing: The original width of the fabric is impregnated with a waterproofing agent using a Monfuss setting machine, with the temperature controlled at 190℃ and the padder pressure at 4KGF / CM. 2 The vehicle speed is 15m / min, and the heat setting time is 1.5min.

[0015] Preferably, in step 1, the spandex coating process is carried out by machine wrapping, specifically by using 70D / 51F nylon false twist textured yarn as the outer fiber, continuously rotating and winding it on the core spandex yarn that is being stretched at a uniform speed on a yarn wrapping machine, and controlling the stretch ratio of the spandex to be 3% and the twist to be 750 twists.

[0016] Preferably, in step 3, the warp density of the fabric is 110-120 threads, the weft density is 90-100 threads, the total density is 200-220 threads, and the width is 82.5 inches; in step 4, the desizing agent includes water, an oil remover at a concentration of 3-4 g / L, NaOH at a concentration of 10-12 g / L, a scouring agent at a concentration of 5-6 g / L, and carbonate at a concentration of 0.5-1 g / L.

[0017] Preferably, the carbonate is sodium carbonate, calcium carbonate, magnesium carbonate, or potassium carbonate; the refining agent is R1O(CH2CH2O) with a concentration of 1-5 g / L. n H, and R1 is R is an alkyl or aryl group substituted with at least one amino, methoxy, or siloxane group.

[0018] Preferably: in step 4, the fabric width shrinks to 55 inches after washing and drying; in step 5, the Menfuji stenter is an open-type stenter, and the selvage is fixed by needle plates on both sides.

[0019] Preferably, in step 7, the dyed fabric is adjusted for weft skew and the perpendicularity of the warp and weft yarns is controlled by a fabric skew corrector.

[0020] Preferably, in step 8, the waterproofing agent is C-6 waterproofing agent with a concentration of 80 g / L, and a yarn fixing agent with a concentration of 40 g / L is added.

[0021] Preferably, the nylon is nylon 66 or a modified nylon material; the modified nylon material comprises, by mass percentage, 22.6-58.8% polyhexamethylene adipamide, 6.3-25% hexamethylenediamine, 6.3-19.8% adipic acid, 3.6-5.5% chitosan, 0.5-0.8% propyl acetate, 0.01-0.05% p-difluoromethoxyphenylboronic acid, and the balance being polyethylene glycol.

[0022] Preferably, the preparation method of the modified nylon material includes first mixing chitosan, propyl acetate, and p-difluoromethoxyphenylboronic acid in an ethylene glycol solution and heating to 72-76°C for 0.1-1 h, collecting the solid by filtration, and then washing and drying to obtain composite chitosan; then mixing the composite chitosan with polyhexamethylene adipamide, hexamethylenediamine, adipic acid, and polyethylene glycol as the balance, and heating to polycondense to obtain the modified nylon preform.

[0023] Preferably, the heating polycondensation is carried out at a controlled temperature of 280-320℃ and a pressure of 1.85-19.5MPa or by water bath heating.

[0024] As can be seen from the above solutions, this application provides a method for preparing an elastic, abrasion-resistant, cotton-feel fabric, which has the following beneficial effects:

[0025] 1. By using warp and weft yarns of appropriate materials to weave the fabric, the elastic and abrasion-resistant cotton-feel fabric obtained by this preparation method has a cotton-feel comfort and abrasion resistance of more than 100,000 times.

[0026] 2. By using a double twisting method, the twist of the outer fiber to the bare spandex yarn reaches 750 twists, thereby enhancing the cohesion between the outer fiber and the bare spandex yarn, further improving the strength of the weft yarn, and at the same time avoiding the exposure of the spandex yarn, the fabric woven by the warp and weft yarns has a good cotton feel.

[0027] 3. By weaving warp and weft yarns of the corresponding materials through plain weave, a woven fabric is obtained, which will make the woven fabric have the cotton feel of the air textured yarn of the warp yarn and significantly improve the abrasion resistance of the woven fabric.

[0028] 4. By using a tensionless desizing machine and a desizing agent with corresponding components, the fluffiness of the warp and weft yarns is optimized, so as to further enhance the cotton feel while making the warp yarn have low tension and a fluffy hand feel;

[0029] 5. Dyeing with an overflow dyeing machine will cause the weft yarn to shrink, thereby increasing the fabric's firmness and preventing the spandex from showing through. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the weaving structure of the elastic and abrasion-resistant cotton-feel fabric disclosed in this application.

[0032] Explanation of the labels in the attached diagram: A, warp yarn; B, weft yarn. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] It should be noted that the degreasing agent used in this application embodiment was purchased from Liaocheng Rongchang Chemical Co., Ltd.; the C-6 waterproofing agent was purchased from Daikin Corporation; and the yarn fixing agent was purchased from Xiamen Fuwen Chemical Co., Ltd.

[0035] The following will describe in detail the preparation method of the elastic and abrasion-resistant cotton-feel fabric of this application.

[0036] like Figure 1 As shown, a method for preparing an elastic, abrasion-resistant, cotton-feel fabric includes the following steps:

[0037] Step 1, Yarn Preparation: Take 166D / 96F nylon air-textured yarn as the warp yarn, and take 70D / 51F nylon false-twist textured yarn and bare spandex yarn to obtain the weft yarn by covering spandex. The covering spandex treatment is carried out by machine wrapping. Specifically, the 70D / 51F nylon false-twist textured yarn is used as the outer fiber and is continuously rotated and wound on the core spandex yarn that is stretched at a uniform speed on the yarn wrapping machine. The stretch ratio of spandex is controlled to be 3% and the twist is 750 twists.

[0038] Step 2, Warping treatment: Use a warping machine to warp the nylon air textured yarn into a whole beam, and control the running speed of the warping machine to be 400-500m / min;

[0039] Step 3, weaving the greige fabric: Using the back-and-forth movement of the reed and the up-and-down movement of the heald frame, control the rotation speed of the warp and weft yarns to 350 rpm, so that the warp and weft yarns interweave to obtain a plain weave greige fabric. The warp density of the greige fabric is 110-120 warps, the weft density is 90-100 warps, the total density is 200-220 warps, and the width is 82.5 inches.

[0040] Step 4, Desizing and Washing: Use a tension-free desizing machine and desizing aids, including water, an oil remover at a concentration of 3-4 g / L, NaOH at a concentration of 10-12 g / L, a scouring agent at a concentration of 5-6 g / L, and sodium carbonate, calcium carbonate, magnesium carbonate, or potassium carbonate at a concentration of 0.5-1 g / L. Control the fabric movement speed to 30 m / min and keep the fabric in the tension-free desizing agent for 5-8 minutes with the assistance of the desizing aid. Then wash and dry, and control the fabric width shrinkage to 55 inches.

[0041] Step 5, Pre-setting: Use a Motofuji stenter with open-width stretching and setting, with the fabric selvage fixed by needle plates on both sides, control the temperature at 200℃, and control the stretching of the fabric from the tensionless desizing machine to 5-7 inches, with a machine speed of 15m / min, and heat setting for 1.5min to obtain the pre-set fabric.

[0042] Step 6, Dyeing treatment: Pass the pre-shaped fabric into the overflow dyeing machine for dyeing to obtain dyed fabric;

[0043] Step 7, Drying treatment: The dyed fabric is fed into the Monfushi setting machine. The fabric is adjusted by the fabric mesh corrector to adjust the weft skew and control the perpendicularity of the warp and weft yarns. The feeding speed of the dyed fabric is controlled at 40m / min and the setting temperature of the Monfushi setting machine is controlled at 190℃. The heat setting is carried out for 1.5min to obtain the original width set fabric.

[0044] Step 8, Waterproofing Finishing: The original width of the fabric is impregnated with a waterproofing agent using a Monfuss setting machine, with the temperature controlled at 190℃ and the padder pressure at 4KGF / CM. 2The vehicle speed is 15m / min, and the heat setting time is 1.5min.

[0045] Therefore, the preparation method of this elastic and durable cotton-feel fabric achieves a twist of 750 twists between the outer fiber and the bare spandex yarn through a double-twist coating process. This enhances the cohesion between the outer fiber and the bare spandex yarn, further increasing the strength of the weft yarn. Simultaneously, while preventing the spandex from being exposed, the fabric woven from warp and weft yarns possesses a good cotton feel. At the same time, a plain weave is used to weave warp and weft yarns of appropriate materials to obtain the woven fabric, resulting in a fabric with a prominent cotton feel from the air-textured warp yarns and a significantly improved brain model effect. To further enhance the hand and touch feel of this elastic and durable cotton-feel fabric, a tension-free desizing machine and a desizing agent with appropriate components are used to optimize the fluffiness of the warp and weft yarns. This further enhances the cotton feel while giving the warp yarns a low-tension and fluffy hand feel. Furthermore, the overflow dyeing machine causes the weft yarns to shrink, thereby increasing the fabric's tightness and preventing the spandex from showing through.

[0046] It should be mentioned that the refining agent in step 4 is R1O(CH2CH2O) with a concentration of 1-5 g / L. n H, and R1 is And R is an alkyl or aryl group substituted with at least one amino, methoxy, or siloxane.

[0047] Meanwhile, the waterproofing agent is C-6 with a concentration of 80 g / L, and a yarn-fixing agent with a concentration of 40 g / L is added. The nylon is nylon 66 or modified nylon material.

[0048] For modified nylon materials, it is composed of 22.6-58.8% by mass of polyhexamethylene adipamide, 6.3-25% of hexamethylenediamine, 6.3-19.8% of adipic acid, 3.6-5.5% of chitosan, 0.5-0.8% of propyl acetate, 0.01-0.05% of p-difluoromethoxyphenylboronic acid, and polyethylene glycol as the balance.

[0049] Correspondingly, the preparation method of modified nylon material includes first mixing chitosan, propyl acetate, and p-difluoromethoxyphenylboronic acid in an ethylene glycol solution and heating to 72-76℃ for 0.1-1 h. After filtration and collection of the solid, the mixture is washed and dried to obtain composite chitosan. Then, the composite chitosan is mixed uniformly with appropriate mass percentages of polyhexamethylene adipamide, hexamethylenediamine, adipic acid, and the balance polyethylene glycol, and heated for polycondensation to obtain modified nylon preform. The heating polycondensation is performed at a controlled temperature of 280-320℃ and a pressure of 1.85-19.5 MPa, or by water bath heating.

[0050] Therefore, the preparation method of this elastic and abrasion-resistant cotton-feel fabric uses warp and weft yarns of appropriate materials to weave the fabric, so that the elastic and abrasion-resistant cotton-feel fabric obtained by this preparation method has a cotton-feel comfort and abrasion resistance of more than 100,000 times.

[0051] Example 1

[0052] like Figure 1 As shown, a method for preparing an elastic, abrasion-resistant, cotton-feel fabric includes the following steps:

[0053] Step 1, Yarn Preparation: Take 166D / 96F nylon air-textured yarn as the warp yarn, and take 70D / 51F nylon false-twist textured yarn and bare spandex yarn to obtain the weft yarn by covering spandex. The covering spandex treatment is carried out by machine wrapping. Specifically, the 70D / 51F nylon false-twist textured yarn is used as the outer fiber and is continuously rotated and wound on the core spandex yarn that is stretched at a uniform speed on the yarn wrapping machine. The stretch ratio of spandex is controlled to be 3% and the twist is 750 twists.

[0054] Step 2, Warping treatment: The nylon air textured yarn is warped into a whole beam using a warping machine, and the running speed of the warping machine is controlled at 400m / min;

[0055] Step 3, weaving the greige fabric: using the back-and-forth movement of the reed and the up-and-down movement of the heald frame, the rotation speed of the warp and weft yarns is controlled at 350 rpm, so that the warp and weft yarns interweave with each other and obtain a plain weave greige fabric with a warp density of 110 threads, a weft density of 90 threads, a total density of 200 threads, and a width of 82.5 inches.

[0056] Step 4, Desizing and Washing: Use a tension-free desizing machine and desizing agent, which includes water, an oil remover at a concentration of 3 g / L, NaOH at a concentration of 1 g / L, a scouring agent at a concentration of 5 g / L, and sodium carbonate, calcium carbonate, magnesium carbonate, or potassium carbonate at a concentration of 0.5 g / L. Control the fabric movement speed to 30 m / min and keep the fabric in the tension-free desizing agent for 5 minutes with the assistance of the desizing agent. Then wash and dry, and control the fabric width shrinkage to 55 inches.

[0057] Step 5, Pre-setting: Use a Motofuji stenter with open-width stretching and setting, with the fabric selvage fixed by needle plates on both sides, control the temperature at 200℃, and control the stretching of the fabric from the tensionless desizing machine to 5 inches, with a machine speed of 15m / min, and heat setting for 1.5min to obtain the pre-set fabric.

[0058] Step 6, Dyeing treatment: Pass the pre-shaped fabric into the overflow dyeing machine for dyeing to obtain dyed fabric;

[0059] Step 7, Drying treatment: The dyed fabric is fed into the Monfushi setting machine. The fabric is adjusted by the fabric mesh corrector to adjust the weft skew and control the perpendicularity of the warp and weft yarns. The feeding speed of the dyed fabric is controlled at 40m / min and the setting temperature of the Monfushi setting machine is controlled at 190℃. The heat setting is carried out for 1.5min to obtain the original width set fabric.

[0060] Step 8, Waterproofing Finishing: The original width of the fabric is impregnated with a waterproofing agent using a Monfuss setting machine, with the temperature controlled at 190℃ and the padder pressure at 4KGF / CM. 2 The vehicle speed is 15m / min, and the heat setting time is 1.5min.

[0061] Therefore, the preparation method of this elastic and abrasion-resistant cotton-feel fabric achieves a twist of 750 twists between the outer fiber and the bare spandex yarn through a double-twist coating process. This enhances the cohesion between the outer fiber and the bare spandex yarn, further increasing the strength of the weft yarn. Simultaneously, while preventing the spandex from being exposed, the fabric woven from both warp and weft yarns possesses a good cotton feel. At the same time, a plain weave is used to weave warp and weft yarns of appropriate materials to obtain the woven fabric, resulting in a fabric with a prominent cotton feel from the air-textured yarns of the warp yarns and significantly improved abrasion resistance. To further enhance the hand feel and touch of this elastic and abrasion-resistant cotton-feel fabric, a tension-free desizing machine and a desizing agent of appropriate composition are used to optimize the fluffiness of the warp and weft yarns. This further enhances the cotton feel while maintaining low tension and a fluffy hand feel in the warp yarns. Furthermore, the overflow dyeing process causes the weft yarns to shrink, increasing the fabric's firmness and preventing the spandex from showing through.

[0062] It should be mentioned that the refining agent in step 4 is R1O(CH2CH2O) with a concentration of 1 g / L. n H, and R1 is And R is a C1 alkyl group substituted with an amino group.

[0063] Meanwhile, the waterproofing agent is C-6 with a concentration of 80 g / L, and a yarn-fixing agent with a concentration of 40 g / L is added. The nylon is nylon 66.

[0064] Therefore, the preparation method of this elastic and abrasion-resistant cotton-feel fabric uses warp and weft yarns of appropriate materials to weave the fabric, so that the elastic and abrasion-resistant cotton-feel fabric obtained by this preparation method has a cotton-feel comfort and abrasion resistance of more than 100,000 times.

[0065] Performance Testing: An abrasion resistance test was conducted on the elastic abrasion-resistant cotton-feel fabric prepared in Example 1. According to GB / T21196-2007, using standard wool abrasive, the abrasion resistance exceeded 150,000 cycles. Furthermore, a pilling test was performed on the elastic abrasion-resistant cotton-feel fabric prepared in Example 1. According to GB / T4802.2-2008, the pilling level was 5, indicating no change. Based on the hand feel of the elastic abrasion-resistant cotton-feel fabric prepared in Example 1, the overall feel is strong, fluffy, comfortable, and soft.

[0066] Example 2

[0067] like Figure 1 As shown, a method for preparing an elastic, abrasion-resistant, cotton-feel fabric includes the following steps:

[0068] Step 1, Yarn Preparation: Take 166D / 96F nylon air-textured yarn as the warp yarn, and take 70D / 51F nylon false-twist textured yarn and bare spandex yarn to obtain the weft yarn by covering spandex. The covering spandex treatment is carried out by machine wrapping. Specifically, the 70D / 51F nylon false-twist textured yarn is used as the outer fiber and is continuously rotated and wound on the core spandex yarn that is stretched at a uniform speed on the yarn wrapping machine. The stretch ratio of spandex is controlled to be 3% and the twist is 750 twists.

[0069] Step 2, Warping treatment: The nylon air textured yarn is warped into a whole beam using a warping machine, and the running speed of the warping machine is controlled at 450m / min;

[0070] Step 3, weaving the greige fabric: using the back-and-forth movement of the reed and the up-and-down movement of the heald frame, the rotation speed of the warp and weft yarns is controlled at 350 rpm, so that the warp and weft yarns interweave and obtain a plain weave greige fabric with a warp density of 115 threads, a weft density of 95 threads, a total density of 210 threads, and a width of 82.5 inches.

[0071] Step 4, Desizing and Washing: A tension-free desizing machine and desizing agent are used. The desizing agent includes water, an oil remover at a concentration of 3.5 g / L, NaOH at a concentration of 11 g / L, a scouring agent at a concentration of 5.5 g / L, and sodium carbonate, calcium carbonate, magnesium carbonate, or potassium carbonate at a concentration of 0.7 g / L. The fabric movement speed is controlled at 30 m / min. The fabric is kept in the tension-free desizing agent for 6 minutes with the assistance of the desizing agent, then washed and dried. The fabric width shrinkage is controlled to 55 inches.

[0072] Step 5, Pre-setting: Use a Motofuji stenter with open-width stretching and setting, with the fabric selvage fixed by needle plates on both sides, control the temperature at 200℃, and control the stretching of the fabric from the tensionless desizing machine to 6 inches, with a machine speed of 15m / min, and heat setting for 1.5 minutes to obtain the pre-set fabric.

[0073] Step 6, Dyeing treatment: Pass the pre-shaped fabric into the overflow dyeing machine for dyeing to obtain dyed fabric;

[0074] Step 7, Drying treatment: The dyed fabric is fed into the Monfushi setting machine. The fabric is adjusted by the fabric mesh corrector to adjust the weft skew and control the perpendicularity of the warp and weft yarns. The feeding speed of the dyed fabric is controlled at 40m / min and the setting temperature of the Monfushi setting machine is controlled at 190℃. The heat setting is carried out for 1.5min to obtain the original width set fabric.

[0075] Step 8, Waterproofing Finishing: The original width of the fabric is impregnated with a waterproofing agent using a Monfuss setting machine, with the temperature controlled at 190℃ and the padder pressure at 4KGF / CM. 2 The vehicle speed is 15m / min, and the heat setting time is 1.5min.

[0076] Therefore, the preparation method of this elastic and durable cotton-feel fabric achieves a twist of 750 twists between the outer fiber and the bare spandex yarn through a double-twist coating process. This enhances the cohesion between the outer fiber and the bare spandex yarn, further increasing the strength of the weft yarn. Simultaneously, while preventing the spandex from being exposed, the fabric woven from warp and weft yarns possesses a good cotton feel. At the same time, a plain weave is used to weave warp and weft yarns of appropriate materials to obtain the woven fabric, resulting in a fabric with a prominent cotton feel from the air-textured warp yarns and a significantly improved brain model effect. To further enhance the hand and touch feel of this elastic and durable cotton-feel fabric, a tension-free desizing machine and a desizing agent with appropriate components are used to optimize the fluffiness of the warp and weft yarns. This further enhances the cotton feel while giving the warp yarns a low-tension and fluffy hand feel. Furthermore, the overflow dyeing machine causes the weft yarns to shrink, thereby increasing the fabric's tightness and preventing the spandex from showing through.

[0077] It should be mentioned that the refining agent in step 4 is R1O(CH2CH2O) with a concentration of 1 g / L. n H, and R1 is Furthermore, R in this compound is an aryl group substituted with a methoxy group.

[0078] Meanwhile, the waterproofing agent is C-6 with a concentration of 80 g / L, and a yarn-fixing agent with a concentration of 40 g / L is added. The nylon is a modified nylon material.

[0079] The modified nylon material is composed of 22.6% by mass of polyhexamethylene adipamide, 25% of hexamethylenediamine, 19.8% of adipic acid, 3.6% of chitosan, 0.5% of propyl acetate, 0.01% of p-difluoromethoxyphenylboronic acid, and the balance being polyethylene glycol.

[0080] Correspondingly, the preparation method of modified nylon material includes first mixing chitosan, propyl acetate, and p-difluoromethoxyphenylboronic acid in an ethylene glycol solution and heating to 72°C for 1 hour. After filtration and collection of the solid, the mixture is washed and dried to obtain composite chitosan. Then, the composite chitosan is mixed uniformly with appropriate mass percentages of polyhexamethylene adipamide, hexamethylenediamine, adipic acid, and the balance polyethylene glycol, and heated for polycondensation to obtain modified nylon preform. The polycondensation is controlled at a temperature of 320°C and a pressure of 19.5 MPa.

[0081] Therefore, the preparation method of this elastic and abrasion-resistant cotton-feel fabric uses warp and weft yarns of appropriate materials to weave the fabric, so that the elastic and abrasion-resistant cotton-feel fabric obtained by this preparation method has a cotton-feel comfort and abrasion resistance of more than 100,000 times.

[0082] Performance Testing: An abrasion resistance test was conducted on the elastic abrasion-resistant cotton-feel fabric prepared in Example 1. According to GB / T21196-2007, using standard wool abrasive, the abrasion resistance exceeded 250,000 cycles. Furthermore, a pilling test was performed on the elastic abrasion-resistant cotton-feel fabric prepared in Example 1. According to GB / T4802.2-2008, the pilling level was 5, indicating no change. Based on the hand feel of the elastic abrasion-resistant cotton-feel fabric prepared in Example 1, the overall feel is strong, fluffy, comfortable, and soft.

[0083] Example 3

[0084] like Figure 1 As shown, a method for preparing an elastic, abrasion-resistant, cotton-feel fabric includes the following steps:

[0085] Step 1, Yarn Preparation: Take 166D / 96F nylon air-textured yarn as the warp yarn, and take 70D / 51F nylon false-twist textured yarn and bare spandex yarn to obtain the weft yarn by covering spandex. The covering spandex treatment is carried out by machine wrapping. Specifically, the 70D / 51F nylon false-twist textured yarn is used as the outer fiber and is continuously rotated and wound on the core spandex yarn that is stretched at a uniform speed on the yarn wrapping machine. The stretch ratio of spandex is controlled to be 3% and the twist is 750 twists.

[0086] Step 2, Warping treatment: The nylon air textured yarn is warped into a whole beam using a warping machine, and the running speed of the warping machine is controlled at 500m / min;

[0087] Step 3, weaving the greige fabric: using the back-and-forth movement of the reed and the up-and-down movement of the heald frame, the rotation speed of the warp and weft yarns is controlled at 350 rpm, so that the warp and weft yarns interweave with each other and obtain a plain weave greige fabric. The warp density of the greige fabric is 120 threads, the weft density is 100 threads, the total density is 220 threads, and the width is 82.5 inches.

[0088] Step 4, Desizing and Washing: Use a tension-free desizing machine and desizing agent, which includes water, 4g / L of degreasing agent, 12g / L of NaOH, 6g / L of scouring agent, and 1g / L of sodium carbonate, calcium carbonate, magnesium carbonate, or potassium carbonate. Control the fabric movement speed at 30m / min and keep the fabric in the tension-free desizing agent for 8 minutes with the assistance of the desizing agent. Then wash and dry, and control the fabric width shrinkage to 55 inches.

[0089] Step 5, Pre-setting: Use a Motofuji stenter with open-width stretching and setting, with the fabric selvage fixed by needle plates on both sides, control the temperature at 200℃, and control the stretching of the fabric from the tensionless desizing machine to 7 inches, with a machine speed of 15m / min, and heat setting for 1.5 minutes to obtain the pre-set fabric.

[0090] Step 6, Dyeing treatment: Pass the pre-shaped fabric into the overflow dyeing machine for dyeing to obtain dyed fabric;

[0091] Step 7, Drying treatment: The dyed fabric is fed into the Monfushi setting machine. The fabric is adjusted by the fabric mesh corrector to adjust the weft skew and control the perpendicularity of the warp and weft yarns. The feeding speed of the dyed fabric is controlled at 40m / min and the setting temperature of the Monfushi setting machine is controlled at 190℃. The heat setting is carried out for 1.5min to obtain the original width set fabric.

[0092] Step 8, Waterproofing Finishing: The original width of the fabric is impregnated with a waterproofing agent using a Monfuss setting machine, with the temperature controlled at 190℃ and the padder pressure at 4KGF / CM. 2 The vehicle speed is 15m / min, and the heat setting time is 1.5min.

[0093] Therefore, the preparation method of this elastic and durable cotton-feel fabric achieves a twist of 750 twists between the outer fiber and the bare spandex yarn through a double-twist coating process. This enhances the cohesion between the outer fiber and the bare spandex yarn, further increasing the strength of the weft yarn. Simultaneously, while preventing the spandex from being exposed, the fabric woven from warp and weft yarns possesses a good cotton feel. At the same time, a plain weave is used to weave warp and weft yarns of appropriate materials to obtain the woven fabric, resulting in a fabric with a prominent cotton feel from the air-textured warp yarns and a significantly improved brain model effect. To further enhance the hand and touch feel of this elastic and durable cotton-feel fabric, a tension-free desizing machine and a desizing agent with appropriate components are used to optimize the fluffiness of the warp and weft yarns. This further enhances the cotton feel while giving the warp yarns a low-tension and fluffy hand feel. Furthermore, the overflow dyeing machine causes the weft yarns to shrink, thereby increasing the fabric's tightness and preventing the spandex from showing through.

[0094] It should be mentioned that the refining agent in step 4 is R1O(CH2CH2O) at a concentration of 5 g / L. n H, and R1 is Furthermore, R in this context represents a C2 alkyl group substituted with a siloxane.

[0095] Meanwhile, the waterproofing agent is C-6 with a concentration of 80 g / L, and a yarn-fixing agent with a concentration of 40 g / L is added. The nylon is a modified nylon material.

[0096] The modified nylon material is composed of 58.8% by mass of polyhexamethylene adipamide, 6.3% of hexamethylenediamine, 6.3% of adipic acid, 5.5% of chitosan, 0.8% of propyl acetate, 0.05% of p-difluoromethoxyphenylboronic acid, and the balance being polyethylene glycol.

[0097] Correspondingly, the preparation method of modified nylon material includes first mixing chitosan, propyl acetate, and p-difluoromethoxyphenylboronic acid in an ethylene glycol solution and heating to 76°C for 0.1 h. After filtration and collection of the solid, the mixture is washed and dried to obtain composite chitosan. Then, the composite chitosan is mixed uniformly with appropriate mass percentages of polyhexamethylene adipamide, hexamethylenediamine, adipic acid, and the balance polyethylene glycol, and heated for polycondensation to obtain modified nylon preform. The polycondensation is performed using a water bath.

[0098] Therefore, the preparation method of this elastic and abrasion-resistant cotton-feel fabric uses warp and weft yarns of appropriate materials to weave the fabric, so that the elastic and abrasion-resistant cotton-feel fabric obtained by this preparation method has a cotton-feel comfort and abrasion resistance of more than 100,000 times.

[0099] Performance Testing: An abrasion resistance test was conducted on the elastic abrasion-resistant cotton-feel fabric prepared in Example 1. According to GB / T21196-2007, using standard wool abrasive, the abrasion resistance exceeded 250,000 cycles. Furthermore, a pilling test was performed on the elastic abrasion-resistant cotton-feel fabric prepared in Example 1. According to GB / T4802.2-2008, the pilling level was 5, indicating no change. Based on the hand feel of the elastic abrasion-resistant cotton-feel fabric prepared in Example 1, the overall feel is strong, fluffy, comfortable, and soft.

[0100] Example 4

[0101] The difference between Example 4 and Example 2 is that the modified nylon material in Example 4 is composed of 46.5% by mass of polyhexamethylene adipamide, 12% of hexamethylenediamine, 10% of adipic acid, 4.3% of chitosan, 0.6% of propyl acetate, 0.03% of p-difluoromethoxyphenylboronic acid, and polyethylene glycol as the balance.

[0102] Correspondingly, the preparation method of modified nylon material includes first mixing chitosan, propyl acetate, and p-difluoromethoxyphenylboronic acid in an ethylene glycol solution and heating to 74°C for 0.5 h. After filtration and collection of the solid, the mixture is washed and dried to obtain composite chitosan. Then, the composite chitosan is mixed uniformly with appropriate mass percentages of polyhexamethylene adipamide, hexamethylenediamine, adipic acid, and the balance polyethylene glycol, and heated for polycondensation to obtain modified nylon preform. The polycondensation is controlled at a temperature of 300°C and a pressure of 1.91 MPa.

[0103] Performance Testing: An abrasion resistance test was conducted on the elastic abrasion-resistant cotton-feel fabric prepared in Example 1. According to GB / T21196-2007, using standard wool abrasive, the abrasion resistance exceeded 250,000 cycles. Furthermore, a pilling test was performed on the elastic abrasion-resistant cotton-feel fabric prepared in Example 1. According to GB / T4802.2-2008, the pilling level was 5, indicating no change. Based on the hand feel of the elastic abrasion-resistant cotton-feel fabric prepared in Example 1, the overall feel is strong, fluffy, comfortable, and soft.

[0104] Comparative Example 1

[0105] The difference between Comparative Example 1 and Example 4 is that the modified nylon material in Comparative Example 1 did not contain composite chitosan.

[0106] Performance Testing: An abrasion resistance test was conducted on the elastic abrasion-resistant cotton-feel fabric prepared in Example 1, according to GB / T21196-2007, using standard wool abrasive. The abrasion resistance was measured to exceed 200,000 cycles. A pilling test was also conducted on the elastic abrasion-resistant cotton-feel fabric prepared in Example 1, according to GB / T4802.2-2008, resulting in a level of 4, indicating slight pilling and / or slight bubbling. Based on the hand feel of the elastic abrasion-resistant cotton-feel fabric prepared in Example 1, the overall cotton feel is strong, fluffy, comfortable, and soft.

[0107] Comparative Example 2

[0108] The difference between Comparative Example 2 and Example 1 is that the refining agent in Comparative Example 2 is C2H5-O(CH2CH2O). n H.

[0109] Performance Testing: An abrasion resistance test was conducted on the elastic abrasion-resistant cotton-feel fabric prepared in Example 1, according to GB / T21196-2007, using standard wool abrasive. The abrasion resistance was measured to exceed 150,000 cycles. A pilling test was also conducted on the elastic abrasion-resistant cotton-feel fabric prepared in Example 1, according to GB / T4802.2-2008. The result was a level 3, indicating moderate pilling and / or moderate bubbling, with balls of different sizes and densities covering a portion of the surface of the sample. Based on the hand feel of the elastic abrasion-resistant cotton-feel fabric prepared in Example 1, the overall cotton feel is strong, fluffy, comfortable, and soft.

[0110] In summary, this application provides a method for preparing an elastic and abrasion-resistant cotton-feel fabric. This method utilizes air-textured yarn and corresponding materials as warp yarns, ensuring a cotton feel while employing a tension-free desizing process in the dyeing and finishing stage to ensure thorough refining, enhance the cotton feel, and significantly improve bulkiness, thus achieving a near-cotton-like touch. Simultaneously, false-twist textured yarn and corresponding materials are wrapped with bare spandex yarn to obtain weft yarns, resulting in weft yarns with high cohesion and good abrasion resistance. Regarding the elasticity of this elastic and abrasion-resistant cotton-feel fabric, a plain weave structure is used, increasing the number of warp and weft interlacings and shortening floats, making the fabric more robust and compact. After desizing and pre-forming in the dyeing and finishing stage, the weft yarns naturally shrink, resulting in a dense overall fabric structure and good lateral elastic elongation of the weft yarns, exhibiting excellent elastic recovery. Tests have shown that the waterproof-finished elastic and durable cotton-feel fabric, after undergoing 100,000 tests with wool, exhibits excellent resistance to pilling, yarn breakage, and snagging. Combined with the pleasant cotton feel of this elastic and durable fabric, it enhances the tactile experience and comfort.

[0111] The terms “first,” “second,” “third,” “fourth,” etc., used in this application (if applicable) are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, or apparatus that includes a series of steps or units is not necessarily limited to those explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, or apparatus.

[0112] It should be noted that the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0113] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A method for preparing an elastic, abrasion-resistant, cotton-feel fabric, characterized in that, Includes the following steps: Step 1, Yarn preparation: Take 166D / 96F nylon air textured yarn as warp yarn, and take 70D / 51F nylon false twist textured yarn and bare spandex yarn to obtain weft yarn by covering spandex. Step 2, Warping treatment: Use a warping machine to warp the nylon air textured yarn into a whole beam, and control the running speed of the warping machine to be 400-500m / min; Step 3, weaving the fabric: Using the back-and-forth movement of the reed and the up-and-down movement of the heald frame, the rotation speed of the warp and weft yarns is controlled at 350 rpm, so that the warp and weft yarns interweave and obtain a plain weave fabric. Step 4, Desizing and Washing: Using a tensionless desizing machine and desizing agent, control the fabric movement speed to 30m / min, and keep the fabric in the tensionless desizing machine for 5-8 minutes with the assistance of the desizing agent, then wash and dry. Step 5, Pre-setting: Using a Monfus setting machine, the temperature is controlled at 200℃, and the fabric is stretched 5-7 inches from the desizing machine at a speed of 15m / min and heat-set for 1.5min to obtain the pre-set fabric. Step 6, Dyeing treatment: Pass the pre-shaped fabric into the overflow dyeing machine for dyeing to obtain dyed fabric; Step 7, Drying treatment: The dyed fabric is fed into the Monfuji setting machine. The feeding speed of the dyed fabric is controlled at 40m / min and the setting temperature of the Monfuji setting machine is 190℃. The setting is carried out for 1.5 minutes to obtain the original width set fabric. Step 8, Waterproofing Finishing: The original width of the fabric is impregnated with a waterproofing agent using a Monfuss setting machine, with the temperature controlled at 190℃ and the padder pressure at 4KGF / CM. 2 The vehicle speed is 15m / min, and the heat setting time is 1.5min; In step 4, the desizing aid includes water, an oil remover at a concentration of 3-4 g / L, NaOH at a concentration of 10-12 g / L, a scouring agent at a concentration of 5-6 g / L, and a carbonate at a concentration of 0.5-1 g / L; the scouring agent is R1O(CH2CH2O) at a concentration of 1-5 g / L. n H, and R1 is R is an alkyl or aryl group substituted with at least one amino, methoxy, or siloxane group.

2. The method for preparing an elastic, abrasion-resistant, cotton-feel fabric according to claim 1, characterized in that: In step 1, the spandex coating process is carried out by machine wrapping, specifically by using 70D / 51F nylon false twist textured yarn as the outer fiber, continuously rotating and winding it on the core spandex yarn that is being stretched at a uniform speed on the yarn wrapping machine, and controlling the stretch ratio of the spandex to be 3% and the twist to be 750 twists.

3. The method for preparing an elastic, abrasion-resistant, cotton-feel fabric according to claim 1, characterized in that: In step 3, the width of the fabric is 82.5 inches.

4. The method for preparing an elastic, abrasion-resistant, cotton-feel fabric according to claim 3, characterized in that: The carbonate is sodium carbonate, calcium carbonate, magnesium carbonate, or potassium carbonate.

5. The method for preparing an elastic, abrasion-resistant, cotton-feel fabric according to claim 1, characterized in that: In step 4, the fabric width shrinks to 55 inches after washing and drying; in step 5, the Motofuji stenter is an open-width stenter with needle plates on both sides fixing the selvage.

6. The method for preparing an elastic, abrasion-resistant, cotton-feel fabric according to claim 1, characterized in that: In step 7, the dyed fabric is adjusted for weft skew and the perpendicularity of the warp and weft yarns is controlled by a fabric skew corrector.

7. The method for preparing an elastic, abrasion-resistant, cotton-feel fabric according to claim 1, characterized in that: In step 8, the waterproofing agent is C-6 waterproofing agent with a concentration of 80 g / L, and a yarn fixing agent with a concentration of 40 g / L is added.

8. The method for preparing an elastic, abrasion-resistant, cotton-feel fabric according to claim 1, characterized in that: The nylon is nylon 66 or a modified nylon material; the modified nylon material is composed of 22.6-58.8% by mass of polyhexamethylene adipamide, 6.3-25% of hexamethylenediamine, 6.3-19.8% of adipic acid, 3.6-5.5% of chitosan, 0.5-0.8% of propyl acetate, 0.01-0.05% of p-difluoromethoxyphenylboronic acid, and polyethylene glycol as the balance.

9. The method for preparing an elastic, abrasion-resistant, cotton-feel fabric according to claim 8, characterized in that: The method for preparing the modified nylon material includes first mixing chitosan, propyl acetate, and p-difluoromethoxyphenylboronic acid in an ethylene glycol solution and heating the mixture to 72-76°C for 0.1-1 h. After filtration and collection of the solid, the mixture is washed and dried to obtain composite chitosan. Then, the composite chitosan is mixed evenly with polyhexamethylene adipamide, hexamethylenediamine, adipic acid, and polyethylene glycol as the balance, and heated for polycondensation to obtain the modified nylon material.

10. The method for preparing an elastic, abrasion-resistant, cotton-feel fabric according to claim 9, characterized in that: The heating polycondensation is carried out at a controlled temperature of 280-320℃ and a pressure of 1.85-19.5MPa or by water bath heating.

Images