A method for manufacturing a four-way stretch skin windbreaker fabric with double colors

Abstract

The application discloses a manufacturing method of a yin-yang double-color four-way elastic skin windbreaker fabric, and relates to the technical field of windbreaker fabrics.The method comprises the following steps: step 1, yarn preparation: obtaining warp yarn by covering spandex yarn with regenerated nylon and obtaining weft yarn by covering spandex yarn with regenerated polyester; step 2, weaving; step 3, fabric desizing: passing the double-line check fabric through a desizing machine; step 4, pre-setting and shaping; step 5, dyeing: dyeing the warp yarn with acid dyes and dyeing the weft yarn with disperse dyes to obtain a yin-yang double-color fabric; and step 6, waterproof finishing.The application has the advantages that regenerated nylon and regenerated polyester are prepared through a process, and the warp and weft yarns of the woven fabric are formed by covering spandex yarn with regenerated nylon and regenerated polyester respectively, so that the purpose of green environmental protection and sustainable development is achieved, and the warp and weft four-way elasticity of the fabric has the effects of effectively resisting wrinkles and reducing the difficulty of fabric care.

Description

Technical Field

[0001] This application relates to the field of trench coat fabric technology, and in particular to a method for manufacturing a two-tone, four-way elastic skin-like trench coat fabric. Background Technology

[0002] Recycled PET fabric is a new type of environmentally friendly recycled fabric. Its yarn is made from discarded mineral water bottles and cola bottles, so it is also known as cola bottle eco-friendly fabric.

[0003] Currently, green and recyclable materials are widely used in textile products. Recycled yarn can reduce petroleum consumption; the fabric can be recycled and reused, saving energy, petroleum consumption, and reducing carbon dioxide emissions.

[0004] For example, Chinese patent CN109278375B discloses a recycled polyester imitation memory fabric. The fabric is made from recycled environmentally friendly fiber raw materials from Coca-Cola bottles. The recycled Coca-Cola bottles are crushed into fragments and then processed into yarn. It can be recycled and effectively reduces carbon dioxide emissions, saving nearly 80% of energy compared to conventional polyester fiber production processes. The outer fabric of the product is waterproof, and the inner fabric is breathable cotton knitted fabric.

[0005] Therefore, this recycled polyester imitation memory fabric is simply made by turning recycled PET material into fibers and then weaving the fabric.

[0006] As for waste polymer materials, the recycling and fabrication of materials such as nylon filaments, nylon yarns, and nylon fabrics are currently unexplored areas in the industry. It is also difficult to produce fabrics from recycled nylon materials to obtain two-color four-way stretch fabrics, which in turn affects the development trend of environmentally friendly clothing based on green, technology, and fashion, and needs to be improved. Summary of the Invention

[0007] In view of this, the purpose of this application is to provide a method for manufacturing a two-tone, four-way stretch windbreaker fabric, so as to achieve the goal of obtaining an environmentally friendly four-way stretch fabric using recycled nylon. The specific solution is as follows:

[0008] A method for manufacturing a two-tone, four-way stretch skin-like windbreaker fabric includes the following steps:

[0009] Step 1, Yarn Preparation: Using machine-wrapped yarn process, the yarn twist is controlled to 1000 twists to obtain warp yarns made of recycled nylon covered with spandex yarn and weft yarns made of recycled polyester covered with spandex yarn.

[0010] Step 2, weaving: The loom weaves and controls the warp density to be 240T and the weft density to be 160T, and obtains double-thread grid fabric;

[0011] Step 3, desizing the fabric: Pass the double-line checkered fabric through the desizing machine at a moving speed of 40m / min, and keep the double-line checkered fabric in the desizing machine for 5-8 minutes;

[0012] Step 4, Pre-setting: Control the predetermined temperature to 180-200℃, stretch 4 inches, control the machine speed to 20m / min, and control the double-line grid fabric after desizing in the drying oven to heat set for 1-2 minutes.

[0013] Step 5, Dyeing: Acid dyes are used to dye the warp yarns, and disperse dyes are used to dye the weft yarns to obtain a two-tone fabric.

[0014] Step 6, Waterproofing Finishing: The two-tone fabric is treated with a Monfuss setting machine and a waterproofing agent, and the padder pressure is controlled at 4 kgf / cm2 and the temperature at 160℃. The two-tone fabric is then heat-set in an oven at a speed of 40 m / min for 1.5 min.

[0015] Preferably, in step 1, the recycled nylon is obtained by the following steps:

[0016] Step a1: Take waste nylon filaments, nylon yarn and / or nylon cloth as raw materials and put them into the crusher to crush and obtain nylon crushed material;

[0017] Step a2: After high-temperature washing and low-temperature drying of the nylon crushed material, it is put into a melt extruder for melt extrusion, solidification and pelletizing to obtain fully dull nylon preform;

[0018] Step a3: Mix the fully dull nylon preform with dispersant, modified nano silica and potassium sodium tartrate in a mass ratio of 15:1:1-2:1 and put it into a melt extruder for melt extrusion into a spinning part. After passing through a spinneret, it forms a filament bundle to obtain recycled nylon for coating spandex yarn.

[0019] Preferably, the modified nano-silica is composed of a mixed solution of 95% ethylene glycol and 5% distilled water by mass percentage, and a modified solution is formed by adding 8-10% sodium fatty alcohol polyoxyethylene ether sulfate by volume of the mixed solution. The nano-silica is then added to the modified solution for modification treatment for 1-2 hours, and the temperature of the modified solution is controlled at 65-72℃.

[0020] Preferably, in step 1, the recycled polyester is obtained by the following steps:

[0021] Step b1: Take waste PET mineral water bottles or cola bottles as raw materials and put them into the crusher to crush them to obtain polyester crushed material;

[0022] Step b2: After high-temperature washing and low-temperature drying of the polyester crushed material, it is put into a melt extruder for melt extrusion, solidification and pelletizing to obtain semi-dull polyester preform;

[0023] Step b3: Mix semi-dull polyester preform with dispersant and modified PET material at a mass ratio of 15:1:2-4 and put it into a melt extruder for melt extrusion into a spinning part. After passing through a spinneret, it forms a filament bundle to obtain recycled polyester for coating spandex yarn.

[0024] Preferably, the modification method of the modified PET material is as follows: first, polyester shreds are mixed with ethylene glycol to obtain BHET by alcoholysis, and then BHET is mixed with 1,4-cyclohexanedicarboxylic acid and fatty acid in a mass ratio of 12-15:1.5-2:1 and polymerized to obtain BHET.

[0025] Preferably, the high-temperature rinsing temperature is 90-100℃; the low-temperature drying temperature is 40-55℃; and the dispersant is zinc stearate, polyethylene wax, or paraffin wax.

[0026] Preferably, in step 2, the loom is a water-jet loom.

[0027] Preferably, in step 3, the desizing agent used in the desizing machine is prepared by mixing tallow amine polyoxyethylene ether, ammonium chloride, ammonium persulfate and 2,4,5-trichlorophenol in a mass ratio of 2:1:3:1-2.

[0028] Preferably, in step 4, the predetermined temperature is 190°C.

[0029] Preferably, in step 6, the waterproofing agent is C-0 fluorine-free waterproofing agent 50G / L.

[0030] As can be seen from the above solutions, this application provides a method for manufacturing a two-tone, four-way stretch skin-friendly windbreaker fabric. This method for manufacturing the two-tone, four-way stretch skin-friendly windbreaker fabric has the following beneficial effects:

[0031] 1. Recycled nylon and recycled polyester are prepared through a process, and the recycled nylon and recycled polyester are respectively used to cover spandex yarn to form the warp and weft yarns of the woven fabric, thereby achieving the purpose of green environmental protection and sustainable development, and making the four-way elasticity of the fabric have an effective anti-wrinkle effect, reducing the difficulty of fabric care.

[0032] 2. By using fully dull recycled nylon in combination with semi-dull recycled polyester, the fabric's drape and UV resistance are improved through a twisting process, while avoiding any impact on its waterproof and windproof properties, thus enhancing the dry and comfortable wearing experience.

[0033] 3. By using acid dyes to dye the warp yarns and disperse dyes to dye the weft yarns, multiple combinations of yin and yang colors can be achieved, thereby enhancing the fashionability of the fabric. The fabric can achieve multiple fashionable color combinations by adjusting the colors of the warp and weft yarns.

[0034] 4. Effective water repellency of the fabric is achieved through fluorine-free waterproofing treatment;

[0035] 5. Through the synergistic effects of the preparation process and formulation components of recycled nylon and recycled polyester, the recycled nylon and recycled polyester, after being obtained as warp and weft yarns respectively and woven into fabric, achieve a dense structure, waterproofing, and enhanced four-way elasticity. The modified nano-silica achieves its modification purpose by forming hydroxyl groups based on the surface treatment agent in the modification solution, and then combines with the recycled polyester to achieve a dense bond structure to block ultraviolet rays, while avoiding affecting the elasticity requirements of the recycled polyester. The modified PET material is based on the polymerization of the active group 1,4-cyclohexanedicarboxylic acid and BHET to form a polymer, thereby improving the tensile properties and elastic modulus of the weft yarn, so that the woven fabric has a soft and comfortable feel.

[0036] 6. By combining the components of the desizing agent, damage to the warp and weft fibers in the fabric is avoided during the desizing process. This allows the manufacturing method of the two-tone four-way stretch windbreaker fabric to achieve the goal of obtaining an environmentally friendly four-way stretch fabric using recycled nylon. Attached Figure Description

[0037] 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.

[0038] Figure 1 This is a schematic diagram of the structure of the double-line grid fabric disclosed in this application. Detailed Implementation

[0039] 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.

[0040] In this application, the two-tone four-way stretch skin windbreaker fabric obtained by the manufacturing method of the two-tone four-way stretch skin windbreaker fabric adopts a high-density warp and weft yarn manufacturing technology, and the warp and weft yarns are obtained by covering spandex yarn with recycled nylon and recycled polyester respectively. While achieving the purpose of green environmental protection, the four-way stretch skin windbreaker fabric of the two-tone four-way stretch skin windbreaker fabric can significantly improve the anti-wrinkle performance.

[0041] It should be mentioned that the loom is a water-jet loom, designed to achieve high-density weaving during the weaving process. Achieving high-density weaving using other looms is also possible, but will not be elaborated upon here. A fluorine-free waterproofing agent is sufficient.

[0042] Example 1

[0043] like Figure 1 As shown, a method for manufacturing a two-tone, four-way stretch skin-like windbreaker fabric includes the following steps:

[0044] Step 1, Yarn Preparation: Using machine-wrapped yarn process, the yarn twist is controlled to 1000 twists to obtain warp yarns made of recycled nylon covered with spandex yarn and weft yarns made of recycled polyester covered with spandex yarn.

[0045] Step 2, weaving: The loom weaves and controls the warp density to be 240T and the weft density to be 160T, and obtains double-thread grid fabric;

[0046] Step 3, desizing of the fabric: The double-line grid fabric is passed through the desizing machine at a moving speed of 40 m / min, and the double-line grid fabric is kept in the desizing machine for 5 min. The desizing agent used in the desizing machine is prepared by mixing tallow amine polyoxyethylene ether, ammonium chloride, ammonium persulfate and 2,4,5-trichlorophenol in a mass ratio of 2:1:3:1.

[0047] Step 4, Pre-setting: Control the predetermined temperature to 180℃, stretch 4 inches, control the machine speed to 20m / min, and control the double-line grid fabric after desizing in the drying oven to heat set for 1 minute.

[0048] Step 5, Dyeing: Acid dyes are used to dye the warp yarns, and disperse dyes are used to dye the weft yarns to obtain a two-tone fabric.

[0049] Step 6, Waterproofing Finish: The two-tone fabric is treated with a Monfus setting machine and a waterproofing agent, with the padder pressure controlled at 4 kgf / cm². 2 The temperature was 160℃, and the two-tone fabric was heat-set in the oven for 1.5 minutes at a speed of 40m / min.

[0050] in:

[0051] Recycled nylon is obtained through the following steps:

[0052] Step a1: Take waste nylon filaments, nylon yarn and / or nylon cloth as raw materials and put them into the crusher to crush and obtain nylon crushed material;

[0053] Step a2: After high-temperature washing and low-temperature drying of the nylon crushed material, it is put into a melt extruder for melt extrusion, solidification and pelletizing to obtain fully dull nylon preform. The temperature of high-temperature washing is controlled at 90℃ and the temperature of low-temperature drying is controlled at 40℃.

[0054] Step a3: Mix the fully dull nylon preform with zinc stearate, modified nano silica and potassium sodium tartrate in a mass ratio of 15:1:1:1 and put it into a melt extruder for melt extrusion into a spinning part. After passing through a spinneret, it forms a filament bundle to obtain recycled nylon for coating spandex yarn.

[0055] The modified nano-silica is composed of a mixed solution of 95% ethylene glycol and 5% distilled water by mass percentage, and a modified solution is formed by adding 8% sodium fatty alcohol polyoxyethylene ether sulfate by volume of the mixed solution. The nano-silica is then added to the modified solution for 1 hour of modification treatment, and the temperature of the modified solution is controlled at 65℃.

[0056] Recycled polyester is obtained through the following steps:

[0057] Step b1: Take waste PET mineral water bottles or cola bottles as raw materials and put them into the crusher to crush them to obtain polyester crushed material;

[0058] Step b2: After high-temperature washing and low-temperature drying of the polyester crushed material, it is put into a melt extruder for melt extrusion, solidification and pelletizing to obtain semi-dull polyester preform. The temperature of high-temperature washing is controlled at 90℃ and the temperature of low-temperature drying is controlled at 40℃.

[0059] Step b3: Mix semi-dull polyester preform with zinc stearate and modified PET material at a mass ratio of 15:1:2 and put it into a melt extruder for melt extrusion into a spinning part. After passing through a spinneret, it forms a filament bundle to obtain recycled polyester for coating spandex yarn.

[0060] Furthermore, the modification method for modified PET materials is as follows: first, polyester shreds are mixed with ethylene glycol to obtain BHET through alcoholysis; then, BHET is mixed with 1,4-cyclohexanedicarboxylic acid and fatty acids in a mass ratio of 12:1.5:1 and polymerized to obtain the final product.

[0061] Example 2

[0062] like Figure 1 As shown, a method for manufacturing a two-tone, four-way stretch skin-like windbreaker fabric includes the following steps:

[0063] Step 1, Yarn Preparation: Using machine-wrapped yarn process, the yarn twist is controlled to 1000 twists to obtain warp yarns made of recycled nylon covered with spandex yarn and weft yarns made of recycled polyester covered with spandex yarn.

[0064] Step 2, weaving: The loom weaves and controls the warp density to be 240T and the weft density to be 160T, and obtains double-thread grid fabric;

[0065] Step 3, desizing of the fabric: The double-line grid fabric is passed through a desizing machine at a moving speed of 40 m / min, and the double-line grid fabric is kept in the desizing machine for 6 min. The desizing agent used in the desizing machine is prepared by mixing tallow amine polyoxyethylene ether, ammonium chloride, ammonium persulfate and 2,4,5-trichlorophenol in a mass ratio of 2:1:3:1.5.

[0066] Step 4, Pre-setting: Control the predetermined temperature to 190℃, stretch 4 inches, control the machine speed to 20m / min, and control the double-line grid fabric after desizing to be heat-set in the drying oven for 1.5min;

[0067] Step 5, Dyeing: Acid dyes are used to dye the warp yarns, and disperse dyes are used to dye the weft yarns to obtain a two-tone fabric.

[0068] Step 6, Waterproofing Finish: The two-tone fabric is treated with a Monfus setting machine and a waterproofing agent, with the padder pressure controlled at 4 kgf / cm². 2 The temperature was 160℃, and the two-tone fabric was heat-set in the oven for 1.5 minutes at a speed of 40m / min.

[0069] in:

[0070] Recycled nylon is obtained through the following steps:

[0071] Step a1: Take waste nylon filaments, nylon yarn and / or nylon cloth as raw materials and put them into the crusher to crush and obtain nylon crushed material;

[0072] Step a2: After high-temperature washing and low-temperature drying of the nylon crushed material, it is put into a melt extruder for melt extrusion, solidification and pelletizing to obtain fully dull nylon preform. The temperature of high-temperature washing is controlled at 95℃ and the temperature of low-temperature drying is controlled at 45℃.

[0073] Step a3: Mix the fully dull nylon preform with polyethylene wax, modified nano silica and potassium sodium tartrate in a mass ratio of 15:1:1.5:1 and put it into a melt extruder for melt extrusion into a spinning part. After passing through a spinneret, it forms a filament bundle to obtain recycled nylon for coating spandex yarn.

[0074] The modified nano-silica is composed of a mixed solution of 95% ethylene glycol and 5% distilled water by mass percentage, and a modification solution is formed by adding 9% sodium fatty alcohol polyoxyethylene ether sulfate by volume of the mixed solution. The nano-silica is then added to the modification solution for 1.5 hours for modification treatment, and the temperature of the modification solution is controlled at 68℃.

[0075] Recycled polyester is obtained through the following steps:

[0076] Step b1: Take waste PET mineral water bottles or cola bottles as raw materials and put them into the crusher to crush them to obtain polyester crushed material;

[0077] Step b2: After high-temperature washing and low-temperature drying of the polyester crushed material, it is put into a melt extruder for melt extrusion, solidification and pelletizing to obtain semi-dull polyester preform. The temperature of high-temperature washing is controlled at 95℃ and the temperature of low-temperature drying is controlled at 45℃.

[0078] Step b3: Mix semi-dull polyester preform with polyethylene wax and modified PET material at a mass ratio of 15:1:3 and put it into a melt extruder for melt extrusion into a spinning part. After passing through a spinneret, it forms a filament bundle to obtain recycled polyester for coating spandex yarn.

[0079] Furthermore, the modification method for modified PET materials is as follows: first, polyester shreds are mixed with ethylene glycol to obtain BHET through alcoholysis; then, BHET is mixed with 1,4-cyclohexanedicarboxylic acid and fatty acids in a mass ratio of 13:1.7:1 and polymerized to obtain the final product.

[0080] Example 3

[0081] like Figure 1 As shown, a method for manufacturing a two-tone, four-way stretch skin-like windbreaker fabric includes the following steps:

[0082] Step 1, Yarn Preparation: Using machine-wrapped yarn process, the yarn twist is controlled to 1000 twists to obtain warp yarns made of recycled nylon covered with spandex yarn and weft yarns made of recycled polyester covered with spandex yarn.

[0083] Step 2, weaving: The loom weaves and controls the warp density to be 240T and the weft density to be 160T, and obtains double-thread grid fabric;

[0084] Step 3, desizing of the fabric: The double-line grid fabric is passed through the desizing machine at a moving speed of 40 m / min, and the double-line grid fabric is kept in the desizing machine for 8 min. The desizing agent used in the desizing machine is prepared by mixing tallow amine polyoxyethylene ether, ammonium chloride, ammonium persulfate and 2,4,5-trichlorophenol in a mass ratio of 2:1:3:2.

[0085] Step 4, Pre-setting: Control the predetermined temperature to 200℃, stretch 4 inches, control the machine speed to 20m / min, and control the double-line grid fabric after desizing in the drying oven to heat set for 2 minutes.

[0086] Step 5, Dyeing: Acid dyes are used to dye the warp yarns, and disperse dyes are used to dye the weft yarns to obtain a two-tone fabric.

[0087] Step 6, Waterproofing Finish: The two-tone fabric is treated with a Monfus setting machine and a waterproofing agent, with the padder pressure controlled at 4 kgf / cm². 2 The temperature was 160℃, and the two-tone fabric was heat-set in the oven for 1.5 minutes at a speed of 40m / min.

[0088] in:

[0089] Recycled nylon is obtained through the following steps:

[0090] Step a1: Take waste nylon filaments, nylon yarn and / or nylon cloth as raw materials and put them into the crusher to crush and obtain nylon crushed material;

[0091] Step a2: After high-temperature washing and low-temperature drying of the nylon crushed material, it is put into a melt extruder for melt extrusion, solidification and pelletizing to obtain fully dull nylon preform. The temperature of high-temperature washing is controlled at 100℃ and the temperature of low-temperature drying is controlled at 55℃.

[0092] Step a3: Mix the fully dull nylon preform with paraffin wax, modified nano silica and potassium sodium tartrate in a mass ratio of 15:1:2:1 and put it into a melt extruder for melt extrusion into a spinning part. After passing through a spinneret, it forms a filament bundle to obtain recycled nylon for coating spandex yarn.

[0093] The modified nano-silica is composed of a mixed solution of 95% ethylene glycol and 5% distilled water by mass percentage, and a modified solution is formed by adding 10% sodium fatty alcohol polyoxyethylene ether sulfate by volume of the mixed solution. The nano-silica is then added to the modified solution for 2 hours of modification treatment, and the temperature of the modified solution is controlled at 72℃.

[0094] Recycled polyester is obtained through the following steps:

[0095] Step b1: Take waste PET mineral water bottles or cola bottles as raw materials and put them into the crusher to crush them to obtain polyester crushed material;

[0096] Step b2: After high-temperature washing and low-temperature drying of the polyester crushed material, it is put into a melt extruder for melt extrusion, solidification and pelletizing to obtain semi-dull polyester preform. The temperature of high-temperature washing is controlled at 100℃ and the temperature of low-temperature drying is controlled at 55℃.

[0097] Step b3: Mix semi-dull polyester preform with paraffin wax and modified PET material at a mass ratio of 15:1:4 and put it into a melt extruder for melt extrusion into a spinning part. After passing through a spinneret, it forms a filament bundle to obtain recycled polyester for coating spandex yarn.

[0098] Furthermore, the modification method for modified PET materials is as follows: first, polyester shreds are mixed with ethylene glycol to obtain BHET through alcoholysis; then, BHET is mixed with 1,4-cyclohexanedicarboxylic acid and fatty acids in a mass ratio of 15:2:1 and polymerized to obtain the final product.

[0099] Example 4

[0100] The difference between Example 4 and Example 1 is that the predetermined temperature in Example 4 is 190°C.

[0101] Example 5

[0102] The difference between Example 5 and Example 1 is that the waterproofing agent in Example 5 is C-0 fluorine-free waterproofing agent 50g / L, that is, the concentration of the C-0 fluorine-free waterproofing agent is 50g per liter of water.

[0103] Comparative Example 1

[0104] The difference between Comparative Example 1 and Example 1 is that the recycled nylon in Comparative Example 1 did not contain modified nano-silica.

[0105] The difference between Comparative Example 2 and Example 1 is that the recycled polyester in Comparative Example 2 did not contain modified PET material.

[0106] The difference between Comparative Example 3 and Example 1 is that the desizing agent in Comparative Example 3 is ammonium persulfate.

[0107] The performance of Examples 1 to 5 and Comparative Examples 1 to 3 was tested.

[0108] Specifically:

[0109] 1. Fabric elasticity test:

[0110] FZ / T01062-1999 shall be adopted.

[0111] 2. Wind resistance test:

[0112] The test was conducted according to FZ / T 81010-2018 and GB / T5453 method, with a test area of ​​20 cm2, a pressure drop of 100 Pa, and the air permeability direction from the outside to the inside.

[0113] 3. Waterproofing test:

[0114] The test was conducted according to FZ / T 81010-2018 and test conditions a) of GB / T 12704.1.

[0115]

[0116]

[0117] Therefore, the manufacturing method of the two-tone four-way stretch windbreaker fabric of this application, through the preparation of recycled nylon and recycled polyester, combined with the optimization of desizing agents, results in a two-tone four-way stretch windbreaker fabric that, while possessing four-way stretch for wrinkle resistance and improved comfort, also exhibits good windproof and moisture-wicking properties. Specifically, recycled nylon and recycled polyester are prepared through a process, and then recycled nylon and recycled polyester are used to cover spandex yarn to form the warp and weft yarns of the woven fabric, thereby achieving the goals of green environmental protection and sustainable development, and ensuring that the four-way stretch of the fabric has an effective wrinkle-resistant effect, reducing the difficulty of fabric care. The fabric utilizes fully dull recycled nylon in combination with semi-dull recycled polyester to enhance its drape and UV resistance through a twisting process, while avoiding any impact on its waterproof and windproof properties, thus improving its dry and comfortable feel. Acid dyes are used to dye the warp yarns, and disperse dyes are used to dye the weft yarns, achieving multiple color combinations to enhance the fabric's fashion appeal. Finally, a fluorine-free waterproofing treatment ensures effective water repellency.

[0118] Meanwhile, through the synergistic combination of the preparation process and formulation components of recycled nylon and recycled polyester, the recycled nylon and recycled polyester, after being obtained as warp and weft yarns respectively and woven together into fabric, achieve a dense structure, waterproofing, and enhanced four-way elasticity. The modified nano-silica achieves its modification purpose through the formation of hydroxyl groups based on the surface treatment agent in the modified solution, and then combines with the recycled polyester to achieve a dense bond structure to block ultraviolet rays while avoiding affecting the elasticity requirements of the recycled polyester. The modified PET material is based on the polymerization of the active group 1,4-cyclohexanedicarboxylic acid and BHET to form a polymer, thereby improving the tensile properties and elastic modulus of the weft yarn, resulting in a soft and comfortable fabric. The combination of components in the desizing agent ensures that damage to the warp and weft fibers in the fabric is avoided during the desizing process. Therefore, the method for producing this two-tone four-way stretch windbreaker fabric achieves the goal of obtaining an environmentally friendly four-way stretch fabric using recycled nylon.

[0119] 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.

[0120] 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.

[0121] 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 manufacturing a two-tone, four-way elastic skin-like windbreaker fabric, characterized in that, Includes the following steps: Step 1, Yarn preparation: Using machine-wrapped yarn process, the yarn twist is controlled to 1000 twists. Warp yarn is obtained by wrapping spandex yarn with recycled nylon and weft yarn is obtained by wrapping spandex yarn with recycled polyester. Step 2, weaving: The loom weaves and controls the warp density to be 240T and the weft density to be 160T, and obtains double-thread grid fabric; Step 3, desizing the fabric: Pass the double-line checkered fabric through the desizing machine at a moving speed of 40m / min, and keep the double-line checkered fabric in the desizing machine for 5-8 minutes; Step 4, Pre-setting: Control the predetermined temperature to 180-200℃, stretch 4 inches, control the machine speed to 20m / min, and control the double-line grid fabric after desizing in the drying oven to heat set for 1-2 minutes. Step 5, Dyeing: Acid dyes are used to dye the warp yarns, and disperse dyes are used to dye the weft yarns to obtain a two-tone fabric. Step 6, Waterproofing Finish: The two-tone fabric is treated with a Monfus setting machine and a waterproofing agent, with the padder pressure controlled at 4 kgf / cm². 2 The temperature was 160℃, and the two-tone fabric was heat-set in the oven for 1.5 minutes at a controlled speed of 40m / min; among which: In step 1, the recycled nylon is obtained through the following steps: Step a1: Take waste nylon filaments, nylon yarn and / or nylon cloth as raw materials and put them into the crusher to crush and obtain nylon crushed material; Step a2: After high-temperature washing and low-temperature drying of the nylon crushed material, it is put into a melt extruder for melt extrusion, solidification and pelletizing to obtain fully dull nylon preform; Step a3: The fully dull nylon preform is mixed with dispersant, modified nano silica and potassium sodium tartrate in a mass ratio of 15:1:(1-2):1 and fed into a melt extruder for melt extrusion into a spinning part. After passing through a spinneret, it forms a filament bundle to obtain recycled nylon for coating spandex yarn. The modified nano silica is composed of a mixed solution of 95% ethylene glycol and 5% distilled water by mass percentage, and a modification solution is formed by adding 8-10% sodium fatty alcohol polyoxyethylene ether sulfate by volume of the mixed solution. The nano silica is then added to the modification solution for modification treatment for 1-2 hours, and the temperature of the modification solution is controlled at 65-72℃. The recycled polyester is obtained through the following steps: Step b1: Take waste PET mineral water bottles or cola bottles as raw materials and put them into the crusher to crush them to obtain polyester crushed material; Step b2: After high-temperature washing and low-temperature drying of the polyester crushed material, it is put into a melt extruder for melt extrusion, solidification and pelletizing to obtain semi-dull polyester preform; Step b3: The semi-dull polyester preform, dispersant, and modified PET material are mixed at a mass ratio of 15:1:(2-4) and fed into a melt extruder for melt extrusion into a spinning part. After passing through a spinneret, the mixture forms a filament bundle to obtain recycled polyester for coating spandex yarn. The modification method of the modified PET material is as follows: first, the polyester crushed material is mixed with ethylene glycol for alcoholysis to obtain BHET. Then, BHET is mixed with 1,4-cyclohexanedicarboxylic acid and fatty acid at a mass ratio of (12-15):(1.5-2):1 and polymerized to obtain the final product.

2. The method for manufacturing a two-tone, four-way elastic skin-like windbreaker fabric according to claim 1, characterized in that: The high-temperature rinsing temperature is 90-100℃; the low-temperature drying temperature is 40-55℃; and the dispersant is zinc stearate, polyethylene wax, or paraffin wax.

3. The method for manufacturing a two-tone, four-way elastic skin-like windbreaker fabric according to claim 1, characterized in that: In step 2, the loom is a water-jet loom.

4. The method for manufacturing a two-tone, four-way elastic skin-like windbreaker fabric according to claim 1, characterized in that: In step 3, the desizing agent used in the desizing machine is prepared by mixing tallow amine polyoxyethylene ether, ammonium chloride, ammonium persulfate and 2,4,5-trichlorophenol in a mass ratio of 2:1:3:(1-2).

5. The method for manufacturing a two-tone, four-way elastic skin-like windbreaker fabric according to claim 1, characterized in that: In step 4, the predetermined temperature is 190°C.

6. The method for manufacturing a two-tone, four-way elastic skin-like windbreaker fabric according to claim 1, characterized in that: In step 6, the waterproofing agent is C-0 fluorine-free waterproofing agent 50g / L.

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