A fabric preparation process containing silk and its application

Abstract

This application relates to the field of fabric preparation technology, and in particular to a fabric preparation process containing silk and its application, including the following preparation steps: S1, nylon fiber, regenerated cellulose fiber, spandex fiber and silk fiber are processed into spinning yarn through opening, cotton opening, drawing, roving, spinning and winding processes; S2, the spinning yarn is then woven into fabric; S3, the fabric is placed in a setting solution at a temperature of 55-65℃ for 50-60 minutes, then removed, washed, and dried to obtain a fabric containing silk; by using nylon fiber, regenerated cellulose fiber, spandex fiber and silk fiber together, the fabric has good breathability, moisture absorption, washability, drape, coolness, softness and comfort, and can be used for summer clothing to improve the comfort of summer clothing.

Description

Technical Field

[0001] This application relates to the field of fabric preparation technology, and in particular to a fabric preparation process containing silk and its application. Background Technology

[0002] Silk fabric is highly comfortable and breathable, making it a popular choice for summer clothing. This is because hot summer weather causes skin to produce more sweat and oil, making silk ideal for summer garments. However, summer clothes, especially underwear, need to be washed daily due to the tendency for sweat to accumulate and form stains. Silk clothing is not very durable and repeated washing can damage it. Therefore, silk is often combined with other washable fibers, such as nylon, in fabric production. Nylon is a synthetic fiber that is lightweight, washable, abrasion-resistant, wrinkle-resistant, and has a good drape. It can be used as a raw material for summer clothing fabrics, improving their washability and extending their lifespan.

[0003] However, nylon has poor breathability and moisture permeability, which reduces the breathability and silk permeability of silk fabrics. This makes the fabric less breathable and moisture-permeable in hot summers, causing sweat to stay on the skin and causing discomfort. Summary of the Invention

[0004] To improve the poor air permeability and moisture permeability of nylon, this application provides a fabric preparation process containing silk and its application.

[0005] In a first aspect, this application provides a fabric preparation process containing silk, employing the following technical solution:

[0006] A fabric preparation process containing silk includes the following steps:

[0007] S1. Nylon fiber, regenerated cellulose fiber, spandex fiber and silk fiber are processed into spinning lines through opening, cotton opening, drawing, roving, spinning and winding processes;

[0008] The specific process parameters for the rolling step are as follows:

[0009] The process employs a three-stage drawing method, with 5-8 slivers combined at each stage. The roller spacing for each stage is 15-20mm x 25mm, and the speed for each stage is 700-900 r / min. The basis weights for the first, second, and third stages are (18-19) g / 5m, (17-18.5) g / 5m, and (17-17.5) g / 5m, respectively. The back draft ratios for the three stages are 1-2 times, 1.5-2 times, and 1.5-2.5 times, respectively. The front roller speeds for the three stages are 1000-1200 r / min, 900-1000 r / min, and 1100-1250 r / min, respectively.

[0010] The specific process parameters for the roving step are as follows:

[0011] The roving dry weight is 4.2-4.5g / 10m, the roller spacing is 27-30mm*30-35mm, the back zone draft ratio is 1.2-1.5 times, and the front roller speed is 160-170r / min;

[0012] The specific process parameters for the spinning step are as follows:

[0013] The back zone draft ratio of the fine yarn is 1.1-1.5 times, the roller spacing is 18-20mm*25-30mm, the twist coefficient is 300-320, and the front roller speed is 190-200r / min;

[0014] S2. Then weave the yarn into fabric;

[0015] S3. Then place the fabric in a setting solution at a temperature of 55-65℃ for 50-60 minutes. Remove the fabric, wash it with water, and air dry it to obtain a fabric containing silk.

[0016] The sizing solution is prepared by mixing water, sodium dodecyl sulfonate and sodium alginate in a weight ratio of 100:(2-4):(5-9).

[0017] By adopting the above technical solution, the fabric containing silk prepared has good breathability, moisture permeability, washability, drape, coolness, softness and comfort, and can be used for summer clothing to improve the comfort of summer clothing.

[0018] In this application, fabrics are prepared by combining nylon fiber, spandex fiber, regenerated cellulose fiber and silk fiber, resulting in fabrics with good abrasion resistance, washability, elasticity, drape, breathability, moisture permeability and softness.

[0019] Nylon fiber possesses excellent abrasion resistance, which improves the water resistance of fabrics and ensures that the fabric does not deform after multiple washes. However, nylon has poor breathability and moisture permeability. This application addresses these issues by adding regenerated cellulose and silk fibers. Regenerated cellulose fiber, derived from natural cellulose materials, exhibits excellent moisture permeability and sweat-wicking properties, making it ideal for summer wear. Silk fiber, a natural protein fiber, offers good comfort and breathability. Combining regenerated cellulose and silk fibers with nylon fiber leverages their breathability and moisture permeability to compensate for nylon's poor breathability and moisture permeability, while also improving the fabric's softness and hand comfort.

[0020] Adding regenerated cellulose fibers and silk can reduce the overall elasticity and drape of the fabric, affecting its texture. Spandex, however, offers good elasticity and drape. This application further enhances the elasticity and drape of silk-containing fabrics by combining spandex with nylon fibers, regenerated cellulose fibers, and silk fibers, preventing the decrease in elasticity and drape caused by the addition of regenerated cellulose fibers and silk fibers, while maintaining the fabric's breathability and moisture permeability.

[0021] In this application, nylon fiber, regenerated cellulose fiber, spandex fiber and silk fiber are fully mixed during the opening and cotton opening process to form a fluffy cotton sliver, which is conducive to the subsequent formation of a structurally stable spinning line, and at the same time removes impurities from the mixed fibers.

[0022] Nylon fiber, regenerated cellulose fiber, spandex fiber and silk fiber have very different physical properties. In this application, the preparation process parameters of drawing, roving and spinning are optimized to achieve blending of nylon fiber, regenerated cellulose fiber, spandex fiber and silk fiber, thereby improving the breathability, moisture permeability, water resistance, drape, coolness, softness and comfort of fabrics containing silk.

[0023] This application adjusts the parameters in the drawing process to form a uniformly structured thick sliver from the loose cotton sliver. This thick sliver possesses a certain degree of toughness and strength, which is beneficial for the roving process. The toughness and strength of the thick sliver after drawing are insufficient for the requirements of yarn spinning. This application improves the strength of the thick sliver by adjusting the roving process. The friction between fibers in the thick sliver is significantly increased through the roving process, resulting in a yarn with greater breaking strength. This application also adjusts the parameters in the refining process to uniformly draw and thin the roving to the required linear density, while simultaneously improving the strength and elasticity of the spun yarn.

[0024] By using a setting treatment, the fabric's dimensions are maintained, preventing deformation after repeated washing. Sodium dodecyl sulfate, an ionic surfactant, is used in the setting solution to promote penetration of the solution into the fibers, release internal stress, and improve dimensional stability. Simultaneously, the setting solution contains alginic acid; sodium alginate has excellent water absorption and stability, improving the fabric's moisture permeability and maintaining dimensional stability.

[0025] Preferably, the weight percentage of each fiber in the spun yarn is as follows:

[0026] 45-55% nylon fiber

[0027] Regenerated cellulose fiber 35-43%

[0028] 6-10% spandex fiber

[0029] Silk fiber 3-5%.

[0030] By adopting the above technical solution and optimizing the amount of various fibers used in the spinning process, the problems of poor air permeability and moisture permeability of nylon fibers can be effectively improved. At the same time, the spinning process also gives the yarn good drape, coolness, and comfort. When used to prepare summer clothing fabrics, the overall drape, air permeability, moisture permeability, coolness, and comfort of the fabric are greatly improved, especially for garments worn close to the skin. The amount of nylon used is 45-55% to ensure that the fabric does not deform after multiple washes. If the amount of nylon is less than 45%, the fabric's wash resistance will decrease; if the amount of nylon is greater than 55%, both air permeability and moisture permeability will decrease.

[0031] The use of regenerated cellulose fiber at 35-43% can effectively improve the breathability and moisture permeability of the fabric. However, excessive use of regenerated cellulose will reduce the water resistance of the fabric.

[0032] Adding 3-5% silk fiber improves the comfort and softness of the fabric. However, adding too much silk fiber can cause the fabric to shrink and reduce its water resistance.

[0033] Spandex fiber is mainly used to improve the drape and elasticity of fabrics. Spandex has poor breathability, so the amount of spandex fiber added should not be too much, as too much will affect the breathability and moisture permeability of the fabric. In this application, by adding 6-10% spandex fiber, the fabric can simultaneously have good drape, elasticity, breathability and moisture permeability.

[0034] Preferably, the regenerated cellulose fiber is prepared by the following method:

[0035] 1) Crush the sisal, then mix the crushed sisal with ethanol, sodium alkylbenzene sulfonate and water, heat to 50-60℃, keep warm for 48-72h, filter, take the filter residue, rinse with water, dry and obtain sisal powder.

[0036] 2) Mix sisal powder, lignin peroxidase and water, keep the temperature at 35-40℃ and soak for 4-5 hours, then add sodium hydroxide solution with a mass fraction of 15-20%, raise the temperature to 180-200℃ and keep heating for 6-8 hours, cool down to room temperature, squeeze the pulp, wash the material, add hydrogen peroxide and bleach to obtain regenerated cellulose fiber spinning solution;

[0037] 3) Mix the regenerated cellulose fiber spinning solution and crosslinking agent, centrifuge and degas it, then spin it, and solidify, stretch, desalt it in a coagulation bath, and then oil, dry and wind it to obtain the regenerated cellulose fiber.

[0038] Sisal fibers possess advantages such as good moisture permeability, high elasticity, good abrasion resistance, and resistance to breakage. When used to prepare summer fabrics, they can improve the moisture permeability and washability of fabrics containing silk, as well as their breathability and moisture permeability. However, sisal fibers are stiff, which can affect the softness of the fabric. To address this, this application uses the aforementioned preparation method to prepare regenerated cellulose fibers, which exhibit excellent softness and can simultaneously improve the softness, moisture permeability, and washability of the fabric.

[0039] In this application, pulverized sisal is soaked in ethanol, sodium alkylbenzene sulfonate and water under heating conditions to hydrolyze the sisal, thereby separating the sisal fiber from the plant cells and obtaining high-purity sisal fiber.

[0040] Soaking sisal powder in a mixture of lignin peroxidase and water degrades the lignin in the sisal powder, which is beneficial for subsequent alkaline cooking. Adding sodium hydroxide solution and heating causes the fiber cells to swell, breaking down the primary cell walls and yielding cellulose. Simultaneously, the alkaline cooking process removes most of the hemicellulose and other non-cellulose components, increasing the purity of the cellulose. Pulping and washing further improve the purity of the cellulose. Bleaching with hydrogen peroxide removes colored substances and residual lignin and other impurities from the pulp, improving the purity and reactivity of the cellulose.

[0041] By reacting the regenerated cellulose fiber spinning solution with a crosslinking agent, the cellulose fibers are linked together to form a network structure, resulting in regenerated cellulose fibers with significantly improved softness.

[0042] Preferably, the crosslinking agent includes at least one of dimethylol urea, trimethylol melamine, dimethylol vinyl urea, and dimethylol dihydroxy vinyl urea.

[0043] Preferably, the weight ratio of the pulverized sisal, ethanol, sodium alkylbenzene sulfonate and water in step 1) is (15-20):(20-30):(3-6):35.

[0044] By adopting the above technical solutions, the hydrolysis efficiency of sisal can be improved, thereby increasing the extraction rate and purity of sisal fiber.

[0045] Preferably, in step 2), the weight ratio of sisal powder, lignin peroxidase and water is (15-25):(4-8):40.

[0046] By adopting the above technical solutions, the degradation of lignin in sisal fibers can be improved, thereby increasing the purity of the fibers in sisal.

[0047] Preferably, in step 3), the amount of crosslinking agent used is sisal powder (1-2) / 100.

[0048] By adopting the above technical solution, a tight network structure is formed between the cellulose fibers, which improves the abrasion resistance and softness of the regenerated fibers, thereby improving the abrasion resistance and softness of the fabric.

[0049] Preferably, in step 3), the coagulation bath is prepared by mixing sodium sulfate, zinc sulfate, sulfuric acid and water in a weight ratio of (1-3):(1-2):(4-8):20.

[0050] By adopting the above technical solution, sodium sulfate can promote the coagulation of regenerated cellulose, zinc sulfate can improve the molding effect of regenerated cellulose, giving the regenerated cellulose fibers good flexibility, improving the strength and wear resistance of regenerated cellulose, and at the same time, sulfuric acid neutralizes sodium hydroxide in regenerated cellulose.

[0051] Preferably, the nylon fiber has a moisture regain of 2.0-2.5% and a breaking strength of 3-5 cN / tex, the spandex fiber has an elastic elongation of 400-800%, and the silk fiber has a fineness of 2.5-3.3D.

[0052] By adopting the above technical solutions, the parameters of nylon fiber, spandex fiber and silk fiber are optimized, further improving the fabric's breathability, moisture permeability, washability, softness and drape.

[0053] Preferably, the fabric woven in step S2 includes several striped breathable areas and several striped base areas. The striped base areas are spaced apart, and a striped breathable area is provided between two adjacent striped base areas. Each striped breathable area is arranged parallel to each striped base area, and the weaving density of the striped breathable area is less than the weaving density of the striped base area.

[0054] By adopting the above solution, the breathability and aesthetics of silk-containing fabrics are improved. The parallel and alternating striped breathable areas and striped base areas enhance the fabric's three-dimensionality and beauty. The striped breathable areas increase airflow, improving breathability. The weave density of the striped breathable areas is lower than that of the striped base area, allowing for easier air circulation and thus better breathability. Simultaneously, the higher weave density of the striped base area results in better drape. The striped breathable areas and striped base area are woven together using a single weave method.

[0055] The term "base area" is defined as follows: the area of ​​the striped base area in the fabric is larger than the area of ​​the striped breathable area, referring to the basic fabric. The term "breathable area" is defined because the weave density of the striped breathable area is lower than that of the striped base area, resulting in higher breathability. This definition does not negate the breathability of the striped base area. The term "stripes" is defined based on the striped structure of both the "breathable area" and the "base area," combined with their alternating arrangement, creating a striped structure. Therefore, the terms "striped breathable area" and "striped base area" are used interchangeably. The fabric of this application, on the one hand, can increase the air circulation of the fabric and improve its breathability through the striped breathable area. On the other hand, the striped structure design of the fabric, the stripe extension direction of the "striped breathable area" and the "striped base area" can be perpendicular to the ground plane or parallel to the ground plane. More preferably, the stripe extension direction of the "striped breathable area" and the "striped base area" is perpendicular to the ground plane. Specifically, when the fabric is used to make clothing, whether the clothing is worn or hung up, the stripe extension direction of the "striped breathable area" and the "striped base area" is perpendicular to the ground plane, so that the fabric has a better drape.

[0056] Preferably, the width of the striped breathable area is smaller than the width of the striped base area, further improving the drape of the silk-containing fabric.

[0057] Secondly, this application provides an application of a fabric containing silk, employing the following technical solution:

[0058] An application of a silk-containing fabric, said fabric being used in underwear, vests, trousers, tops, socks, and briefs, said fabric being prepared by a silk-containing fabric preparation process as described in the first aspect.

[0059] By adopting the above technical solutions, underwear, vests, pants, tops, socks, and briefs have good breathability, absorbency, washability, and comfort, making them more suitable for summer clothing.

[0060] In summary, this application has the following beneficial effects:

[0061] 1. This application prepares a fabric containing silk by using nylon fiber, regenerated cellulose fiber, silk fiber and spandex fiber together. The silk-containing fabric has good abrasion resistance, washability, elasticity, drape, breathability, moisture permeability and softness. At the same time, this application controls the process parameters of drawing, roving and spinning in the preparation process to make the four fibers mixed evenly to form a spinning line with certain strength and toughness.

[0062] 2. In this application, regenerated cellulose fibers are prepared by using sisal, so that the regenerated cellulose fibers simultaneously possess the properties of abrasion resistance, softness and moisture permeability, thereby improving the abrasion resistance, washability, breathability and moisture permeability of fabrics containing silk. Attached Figure Description

[0063] Figure 1 This is a schematic diagram of the fabric structure in Example 1.

[0064] Attached label: 1. Striped breathable area; 2. Striped base area. Detailed Implementation

[0065] Example

[0066] A fabric containing silk is prepared by the following method:

[0067] S1. 700g of nylon fiber, 430g of regenerated cellulose fiber, 70g of spandex fiber and 50g of silk fiber are processed into spinning lines through opening, cotton opening, drawing, roving, spinning and winding processes.

[0068] The specific process parameters for the rolling step are as follows:

[0069] The process employs a three-stage drawing process, with 5 slivers combined at each stage. The roller spacing for each stage is 15mm x 25mm, and the speed for each stage is 700 r / min. The basis weights for the first, second, and third stages are 18 g / 5m, 17 g / 5m, and 17.5 g / 5m, respectively. The back draft ratios for the three stages are 1, 1.5, and 1.5, respectively, and the front roller speeds for the three stages are 1000 r / min, 900 r / min, and 1100 r / min, respectively.

[0070] The specific process parameters for the roving step are as follows:

[0071] The roving dry weight is 4.2g / 10m, the roller spacing is 27mm*30mm, the back zone draft ratio is 1.2, and the front roller speed is 160r / min;

[0072] The specific process parameters for the spinning step are as follows:

[0073] The back zone draft ratio of the fine yarn is 1.1, the roller spacing is 18mm*25mm, the twist coefficient is 300, and the front roller speed is 190r / min;

[0074] S2. Then weave the spun yarn into fabric, such as Figure 1As shown, the fabric includes several striped breathable areas 1 and several striped base areas 2. The striped base areas 2 are spaced apart, and a striped breathable area 1 is provided between two adjacent striped base areas 2. Each striped breathable area 1 is arranged parallel to each striped base area 2. The weave density of the striped breathable area 1 is less than the weave density of the striped base area 2, and the width of the striped breathable area 1 is less than the width of the striped base area 2.

[0075] S3. Then place the fabric in a setting solution at 55℃ for 50 minutes, remove it, wash it with water, and air dry it to obtain a fabric containing silk.

[0076] The sizing solution is prepared by mixing water, sodium dodecyl sulfonate and sodium alginate in a weight ratio of 100:2:5, with 10000g of water, 200g of sodium dodecyl sulfonate and 500g of sodium alginate.

[0077] The moisture regain of nylon fiber is 2.0%, the breaking strength is 3 cN / tex, the elastic elongation of spandex fiber is 400%, and the fineness of silk fiber is 2.5D.

[0078] The quality standard for regenerated cellulose fiber is GB / T29284-2012 "Regenerated Cellulose Fiber".

[0079] The difference between Examples 2-3 and Example 1 lies in the amount of raw materials used and the experimental parameters for preparing fabrics containing silk. Specific differences are shown in Table 1.

[0080] Table 1. Raw material dosage and experimental parameters for preparing silk-containing fabrics in Examples 1-3.

[0081]

[0082]

[0083] Example 4

[0084] A fabric containing silk, the difference between this embodiment and Embodiment 1 is that the regenerated cellulose fiber is prepared by the following method:

[0085] 1) Crush 3000g of sisal, then mix the crushed sisal with 4000g of ethanol, 600g of sodium alkylbenzene sulfonate (sodium dodecyl sulfonate) and 7000g of water, heat to 50℃, keep warm for 48h, filter, take the filter residue, rinse with water, dry, and obtain sisal powder, and weigh it.

[0086] 2) Mix 1982g of sisal powder, 529g of lignin peroxidase and 5285g of water, soak at 35℃ for 4 hours, then add 600g of 15% sodium hydroxide solution, heat to 180℃ and keep heating for 6 hours, cool to room temperature, squeeze out the pulp, wash the material, remove impurities, then add 1500g of hydrogen peroxide (30% by mass) for bleaching to obtain regenerated cellulose fiber spinning solution;

[0087] 3) Mix the regenerated cellulose fiber spinning solution with 19.9g of crosslinking agent (dihydroxymethylurea), centrifuge and degas, then spin the fiber, and coagulate, stretch, desalt, oil, dry and wind it in a coagulation bath to obtain the regenerated cellulose fiber.

[0088] The coagulation bath is prepared by mixing sodium sulfate, zinc sulfate, sulfuric acid and water in a weight ratio of 1:1:4:20.

[0089] The difference between Examples 5-6 and Example 4 lies in the different raw materials, amounts, and experimental parameters used in the preparation of regenerated cellulose fibers. Specific differences are shown in Table 2.

[0090] Table 2. Raw materials, dosage, and experimental parameters of regenerated cellulose fibers in Examples 4-6.

[0091]

[0092] In Example 5, the coagulation bath was prepared by mixing sodium sulfate, zinc sulfate, sulfuric acid and water in a weight ratio of 2:1.5:6:20.

[0093] In Example 6, the coagulation bath was prepared by mixing sodium sulfate, zinc sulfate, sulfuric acid, and water in a weight ratio of 3:2:8:20.

[0094] Example 7

[0095] A fabric containing silk. The difference between this embodiment and embodiment 4 is that no cross-linking agent is added in step 3), while the other raw material types, amounts and experimental parameters are the same as in embodiment 4.

[0096] Example 8

[0097] A fabric containing silk. The difference between this embodiment and embodiment 4 is that sisal is replaced with an equal amount of flax, while the other raw material types, amounts and experimental parameters are the same as in embodiment 4.

[0098] The difference between Examples 9-11 and Example 1 lies in the amount of nylon fiber, regenerated cellulose fiber, spandex fiber, and silk used. Specific amounts are shown in Table 3.

[0099] Table 3. Usage of nylon fiber, regenerated cellulose fiber, spandex fiber, and silk

[0100]

[0101] Comparative Example

[0102] Comparative Example 1

[0103] A fabric containing silk. The difference between this embodiment and Embodiment 1 is that cotton fiber is used instead of regenerated cellulose fiber, while the other raw material types, amounts and experimental parameters are the same as in Embodiment 1.

[0104] The cotton fiber is Xinjiang long-staple cotton.

[0105] Comparative Example 2

[0106] A fabric, the difference between this embodiment and embodiment 1 is that cotton fiber is used instead of silk fiber, while the other raw material types, amounts and experimental parameters are the same as in embodiment 1.

[0107] The cotton fiber is Xinjiang long-staple cotton.

[0108] Comparative Example 3

[0109] A fabric containing silk. The difference between this comparative example and Example 1 is that polyurethane fiber is used instead of spandex fiber, while the other raw material types, amounts and experimental parameters are the same as in Example 1.

[0110] The polyurethane fiber has a length of 2 mm, a breaking length of 2.45%, and a tensile strength of 180 MPa.

[0111] Comparative Example 4

[0112] A fabric containing silk, the difference between this comparative example and Example 1 is that the specific process parameters in the drawing step are as follows:

[0113] The process employs two drawing stages, with 5 slivers drawn together at each stage. The roller spacing at each stage is 15mm x 25mm, and the speed at each stage is 700 r / min. The basis weights for the first and second stages are 18 g / 5m and 17 g / 5m, respectively. The back draft ratios at each stage are 1 and 1.5, respectively, and the front roller speeds at each stage are 1000 r / min and 900 r / min, respectively.

[0114] Comparative Example 5

[0115] A fabric containing silk, the difference between this comparative example and Example 1 is that the specific process parameters in the roving step are as follows:

[0116] The roving dry weight is 3g / 10m, the roller spacing is 27mm*35mm, the back zone draft ratio is 1.2 times, and the front roller speed is 170r / min.

[0117] Comparative Example 6

[0118] A fabric containing silk, the difference between this comparative example and Example 1 is that the specific process parameters in the roving step are as follows:

[0119] The back zone draft ratio of the fine yarn is 0.8, the roller spacing is 18mm*25mm, the twist coefficient is 300, and the front roller speed is 190r / min.

[0120] Comparative Example 7

[0121] A fabric containing silk. The difference between this comparative example and Example 1 is that the setting step is omitted, while the other raw material types, amounts and experimental parameters are the same as in Example 1.

[0122] Performance testing

[0123] The fabrics containing silk prepared in Examples 1-11, the fabrics containing silk prepared in Comparative Examples 1-2 and 4-7, and the fabric prepared in Comparative Example 3 were subjected to air permeability test, moisture permeability test, tensile strength test, dimensional change rate after washing test, and dimensional change rate after washing test.

[0124] Detection methods / test methods

[0125] Air permeability test: The test shall be conducted in accordance with GB / T 5453-1997 Determination of air permeability of textile fabrics.

[0126] Moisture permeability test: The test was conducted in accordance with GB / T 12704.1-2009 Test method for moisture permeability of fabrics, and the moisture permeability rate was calculated.

[0127] Breaking strength: GB / T 3923.1-2013 Textiles - Tensile properties of fabrics - Part 1: Determination of breaking strength and elongation at break.

[0128] Water washing dimensional change rate: "GB / T 8628-2013 Textiles - Test for dimensional change - Preparation, marking and measurement of fabric samples and garments".

[0129] Softness: Tested using a fabric texture analyzer, grade IV, with grade I showing the best softness. Experimental data are shown in Table 4.

[0130] Table 4. Experimental data of Examples 1-11 and Comparative Examples 1-7

[0131]

[0132] As can be seen from Examples 1-11 and Comparative Examples 1-6 and Table 4, by using nylon fiber, regenerated cellulose, spandex fiber and silk fiber together, a fabric containing silk can be obtained with good air permeability, strong moisture permeability, water resistance, good strength and softness.

[0133] Compared with Comparative Example 1, Comparative Example 1 with Comparative Example 2, and Comparative Example 1 with Comparative Example 3, the values ​​of air permeability, moisture permeability, and tensile strength in Comparative Examples 1-3 are lower than those in Comparative Example 1. Furthermore, the water-based dimensional change rate in Comparative Examples 1-3 is significantly increased, and the softness grade is decreased. This indicates that regenerated cellulose fiber, silk fiber, and spandex fiber all have an improving effect on the air permeability, moisture permeability, tensile strength, water resistance, and softness of fabrics containing silk.

[0134] Compared with Comparative Example 4, Comparative Example 5, and Comparative Example 6, the values ​​of air permeability, moisture permeability, and tensile strength in Comparative Examples 4-6 are lower than those in Comparative Example 1. Furthermore, the water-based dimensional change rate in Comparative Examples 4-6 is significantly increased, and the softness grade in Comparative Examples 4-5 is decreased. This indicates that by adopting the preparation process parameters in this application, the air permeability, moisture permeability, tensile strength, water resistance, and softness of fabrics containing silk can be improved.

[0135] Compared with Comparative Example 7, the dimensional change rate of Comparative Example 7 after washing was significantly higher than that of Example 1, indicating that the setting liquid in this application helps to maintain the dimensional stability of fabrics containing silk.

[0136] Compared with Example 4, the values ​​of air permeability, moisture permeability, and tensile strength in Example 4 are greater than those in Example 1. At the same time, the dimensional change rate after washing in Example 4 is reduced and the softness is improved. This shows that the regenerated cellulose fiber prepared by the method in this application can improve the air permeability, moisture permeability, tensile strength, water resistance, and softness of fabrics containing silk.

[0137] Compared with Examples 7 and 8, the tensile strength values ​​in Examples 7-8 are lower than those in Example 1. Simultaneously, the dimensional change rate after washing increases and the softness grade decreases in Examples 7-8. This indicates that the preparation of regenerated cellulose fibers using regenerated cellulose fiber spinning solution and crosslinking agent in this application is beneficial for improving the tensile strength, wash resistance, and softness of fabrics containing silk. Using sisal fibers can also improve the tensile strength, wash resistance, and softness of fabrics containing silk.

[0138] Compared with Examples 9-11, Example 1 shows that the tensile strength values ​​of Examples 9-11 are all lower, the moisture permeability and dimensional change rate after washing values ​​of Examples 9-10 are higher, the softness of Examples 9-10 is improved, and the dimensional change rate after washing value of Example 11 is lower. This indicates that by adjusting the amount of nylon fiber, regenerated cellulose, spandex fiber and silk fiber, the overall air permeability, moisture permeability, tensile strength, water resistance and softness of fabrics containing silk can be improved.

[0139] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A process for preparing a fabric containing silk, characterized by, The preparation steps include: S1, the nylon fiber, regenerated cellulose fiber, spandex fiber and silk fiber are made into a spinning line through the processes of picking, opening, drawing, roving, spinning, and bobbin winding; In the drawing step, the specific process parameters are as follows: Three drawing is adopted, the number of cotton strips in each lane is 5-8, the roller gauge of each lane is 15-20mm*25mm, the speed of each lane is 700-900r / min, the fixed amount of the first lane, the second lane and the third lane is (18-19) g / 5m, (17-18.5) g / 5m and (17-17.5) g / 5m respectively, the back draft ratio of the three lanes is 1-2 times, 1.5-2 times and 1.5-2.5 times respectively, and the front roller speed of the three lanes is 1000-1200r / min, 900-1000r / min and 1100-1250r / min respectively; In the roving step, the specific process parameters are as follows: The dry fixed amount of roving is 4.2-4.5g / 10m, the roller gauge is 27-30mm*30-35mm, the back zone draft ratio is 1.2-1.5 times, and the front roller speed is 160-170r / min; In the spinning step, the specific process parameters are as follows: The back zone draft ratio of the spinning is 1.1-1.5 times, the roller gauge is 18-20mm*25-30mm, the twist factor is 300-320, and the front roller speed is 190-200r / min; S2, the spinning line is knitted into a fabric again; S3, the fabric is placed in a setting solution, the temperature of the setting solution is 55-65℃, the holding time is 50-60min, then it is taken out, washed, dried and obtained a fabric containing silk; The setting solution is prepared by mixing water, sodium dodecyl sulfonate and sodium alginate according to the weight ratio of 100:(2-4):(5-9); The weight percentage of various fibers in the spinning line is as follows: Nylon fiber 45-55% Regenerated cellulose fiber 35-43% Spandex fiber 6-10% Silk fiber 3-5%; The regenerated cellulose fiber is prepared by the following method: 1) The sisal hemp is crushed, then the crushed sisal hemp, ethanol, sodium alkyl benzene sulfonate and water are mixed, heated to 50-60℃, held for 48-72h, filtered, the filter residue is washed with water, dried, and the sisal hemp powder is weighed; 2) The sisal hemp powder, lignin peroxidase and water are mixed, soaked at a temperature of 35-40℃ for 4-5h, then a 15-20% sodium hydroxide solution is added, heated to 180-200℃, held for 6-8h, cooled to room temperature, extruded, washed, impurity removed, then hydrogen peroxide is added for bleaching, and a regenerated cellulose fiber spinning solution is obtained; 3) The regenerated cellulose fiber spinning solution and a crosslinking agent are mixed, centrifuged to remove bubbles, then spun, and coagulated, stretched, desalted in a coagulation bath, and then oiled, dried, wound to obtain the regenerated cellulose fiber; In step 1), the weight ratio of the crushed sisal hemp, ethanol, sodium alkyl benzene sulfonate and water is (15-20):(20-30):(3-6):

35. In step 2), the weight ratio of the sisal hemp powder, the lignin peroxidase and water is (15-25):(4-8):40; In step 3), the amount of the crosslinking agent is (1-2) / 100 of the sisal hemp powder; In step 3), the coagulation bath is prepared by mixing sodium sulfate, zinc sulfate, sulfuric acid and water according to the weight ratio of (1-3):(1-2):(4-8):20; The moisture regain of the polyamide fiber is 2.0-2.5%, the breaking strength is 3-5 cN / tex, the elastic elongation of the spandex fiber is 400-800%, and the fineness of the silk fiber is 2.5-3.3D; the woven fabric formed in step S2 has a structure comprising a plurality of stripe breathable areas (1) and a plurality of stripe base areas (2), the stripe base areas (2) are arranged at intervals, and one stripe breathable area (1) is arranged between two adjacent stripe base areas (2); each stripe breathable area (1) is arranged in parallel with each stripe base area (2), and the weaving density of the stripe breathable area (1) is less than that of the stripe base area (2).

2. Use of a fabric containing silk, characterized in that, The fabric is applied to underwear, vests, trousers, shirts and socks, and the fabric containing silk is prepared by the process for preparing a fabric containing silk according to claim 1. The fabric is applied to underwear, vests, trousers, shirts and socks, and the fabric containing silk is prepared by the process for preparing a fabric containing silk according to claim 1.

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