Wear-resistant and high-elastic bio-based nylon single-component fabric

Abstract

The utility model provides a wear-resistant and high-elastic bio-based nylon single-component fabric. The bio-based nylon single-component fabric comprises a bio-based fabric layer and a fluoride-free bio-based waterproof functional layer arranged on at least one surface of the bio-based fabric layer, the bio-based fabric layer is formed by interweaving warp yarns and weft yarns, the warp yarns and the weft yarns are 20D-40D nylon 510 yarns, and the warp yarns and the weft yarns are double-twisted mechanically stretched yarns. The bio-based nylon single-component fabric mainly comprises a nylon single component, is convenient to recycle and has the high wear-resistant property of nylon 510. The fluoride-free bio-based waterproof functional layer on the bio-based fabric layer can endow the fabric with waterproof performance, and also has the advantages of being non-toxic, easy to degrade, environment-friendly and the like.

Description

Technical Field

[0001] The present application relates to the technical field of functional yarn fabrics, and in particular to a wear-resistant, highly elastic bio-based nylon single-component fabric. Background Art

[0002] With the proposal of the "dual carbon" strategic goal, the "14th Five-Year Plan" has become a critical period for carbon peak, and it is also a critical period for promoting high-quality economic development and continuous improvement of ecological environment quality. In today's rapidly changing textile technology, outdoor fabrics need to be researched and developed in the direction of greener, low-carbon, and high-performance. The base material for producing outdoor fabrics generally uses nylon fiber, and its most prominent feature is its superior wear resistance. The scientific name of nylon fiber is polyamide fiber. Polycaprolactam fiber (nylon 6) and polyhexamethylene adipamide fiber (nylon 66) are commonly used in yarn fabrics. However, most of them are derived from non-renewable petroleum resources and are not suitable for the current development concept of environmental protection and low carbon. As a large number of clothing brand companies have taken measures to solve environmental problems, some yarn fabrics that are in line with the direction of low-carbon and sustainable development have appeared in the industry. Among them, the new nylon fiber developed with recyclable plant raw materials (corn, straw, castor oil plants, etc.) reduces dependence on non-renewable resources and is one of the important future development trends of outdoor fabrics.

[0003] In order to better meet the requirements of energy conservation and emission reduction, environmentally friendly recycled yarns made from waste plastic bottles, fishing nets, etc. have also begun to take shape, but there are still some difficulties in the recycling of waste textiles. The main reason is that the composition of clothing is relatively complex, and it is difficult to obtain spinning raw materials by simple dissolution and separation, especially elastic fabrics containing spandex, which are more difficult to separate. The Chinese patent document with announcement number CN 217671551 U discloses an environmentally friendly bio-based film-sticking waterproof and breathable fabric, including a fabric layer, a bonding adhesive layer and a film layer. The fabric layer is interwoven with warp yarn count and weft yarn count, and the warp yarn count and weft yarn count are both made of regenerated nylon yarn, and the film layer is made of bio-based nylon film. The fabric in this document uses recyclable regenerated nylon and bio-based nylon film, and the film layer and the fabric layer are the same component, so that the fabric can be recycled and reused after use.

[0004] The above-mentioned bio-based film fabric is a single-component fabric with a single ingredient, which conforms to the sustainable development concept of recyclability, but it does not take into account the performance requirements of outdoor fabrics such as high wear resistance and elasticity. Utility Model Content

[0005] In view of this, the present application provides a wear-resistant, highly elastic bio-based nylon single-component fabric. The bio-based nylon single-component fabric provided in the present application is waterproof, highly elastic and highly wear-resistant, and can be recycled and reused, which is beneficial to environmental protection.

[0006] The present application provides a wear-resistant, highly elastic bio-based nylon single-component fabric, comprising a bio-based fabric layer, and a fluorine-free bio-based waterproof functional layer arranged on at least one surface of the bio-based fabric layer; the bio-based fabric layer is formed by interweaving warp yarns and weft yarns, the warp yarns and weft yarns are both 20D-40D nylon 510 yarns, and the warp yarns and weft yarns are both double-twisted mechanically stretched yarns.

[0007] In some embodiments, the warp yarns and the weft yarns are both 20-22D / 20-34F nylon 510 yarns.

[0008] In some embodiments, the weight of the bio-based nylon single-component fabric is 40-80 g / m 2 .

[0009] In some embodiments, both surfaces of the bio-based fabric layer are provided with a fluorine-free bio-based waterproof functional layer.

[0010] In some embodiments, the fluorine-free bio-based waterproof functional layer further includes uniformly distributed wear-resistant substances.

[0011] In some embodiments, the bio-based fabric layer has a plain weave structure, a twill weave structure, or a checkered weave structure.

[0012] The present application provides a method for preparing the wear-resistant and highly elastic bio-based nylon single-component fabric as described above, comprising:

[0013] 20D-40D nylon 510 yarns are selected and used as warp yarns and weft yarns after double twisting and mechanical stretching, and interwoven to obtain grey fabrics;

[0014] A fluorine-free bio-based waterproof finishing agent is applied to at least one surface of the grey cloth to form a fluorine-free bio-based waterproof functional layer to obtain the wear-resistant and highly elastic bio-based nylon single-component fabric.

[0015] In some embodiments, before applying the fluorine-free bio-based water-repellent finishing agent on at least one surface of the grey fabric, pretreatment and dyeing are performed.

[0016] In some embodiments, applying a fluorine-free bio-based water-repellent finishing agent on at least one surface of the grey fabric comprises:

[0017] By impregnating and rolling a working solution containing a fluorine-free bio-based waterproof finishing agent and a wear-resistant substance, and drying, a fluorine-free bio-based waterproof functional layer with the wear-resistant substance evenly distributed is formed on both surfaces of the grey cloth.

[0018] In some embodiments, in the working solution comprising a fluorine-free bio-based waterproof finishing agent and a wear-resistant substance, the concentration of the fluorine-free bio-based waterproof finishing agent is 20-40 g / L, and the concentration of the wear-resistant substance is 5-10 g / L; and the drying temperature is 150-170°C.

[0019] Compared with the prior art, the bio-based nylon single-component fabric described in the present application includes: a bio-based fabric layer and a fluorine-free bio-based waterproof functional layer, wherein the fluorine-free bio-based waterproof functional layer is arranged on at least one surface of the bio-based fabric layer; the warp and weft yarns of the bio-based fabric layer are made of fine-denier bio-based nylon yarn (20D-40D nylon 510 yarn), which is endowed with high elasticity through double-twisting mechanical stretching. The bio-based nylon single-component fabric is mainly a single component of nylon, which is easy to recycle and reuse, and has the high wear resistance of nylon 510. The fluorine-free bio-based waterproof functional layer on the bio-based fabric layer can endow the fabric with waterproof properties, and also has the advantages of being non-toxic, easily degradable, and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the structure of the wear-resistant, highly elastic bio-based nylon single-component fabric provided in an embodiment of the present application. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0022] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0023] The present application provides a wear-resistant, highly elastic bio-based nylon single-component fabric, comprising a bio-based fabric layer, and a fluorine-free bio-based waterproof functional layer arranged on at least one surface of the bio-based fabric layer; the bio-based fabric layer is formed by interweaving warp yarns and weft yarns, the warp yarns and weft yarns are both 20D-40D nylon 510 yarns, and the warp yarns and weft yarns are both double-twisted mechanically stretched yarns.

[0024] The bio-based nylon single-component fabric provided in the present application is waterproof, highly elastic and highly wear-resistant, and can be recycled and reused, which is beneficial to the environment.

[0025] See also Figure 1 , Figure 1 The schematic diagram of the structure of the bio-based nylon single-component fabric is shown in FIG. 1 , wherein 1 is the bio-based fabric layer and 2 is the fluorine-free bio-based waterproof functional layer.

[0026] The bio-based nylon single-component fabric described in the embodiment of the present application includes a bio-based fabric layer 1, which is a fabric layer formed by interweaving warp yarns and weft yarns. The warp yarns are warp yarns, and the weft yarns are weft yarns. Generally, the length direction of the fabric is the warp direction, and the fabric width is the width in the weft direction. The embodiment of the present application uses bio-based nylon yarns to weave the bio-based fabric layer 1, and the bio-based nylon yarns are nylon 510 yarns. Nylon 510 is a fully bio-based nylon material, which is polymerized from 1,5-pentanediamine and 1,10-sebacic acid extracted from biological materials, achieving 100% regeneration, and has more advantages in energy conservation, emission reduction and cost. The nylon 510 yarn is wear-resistant, has a lower amide density than nylon 6, has a lower water absorption rate, and has good product dimensional stability.

[0027] Although traditional nylon spandex coated yarn has good elasticity and recovery performance, the spandex component needs to be separated after recycling and melting, which is not convenient for reuse. Different from the traditional process of adding spandex elastic yarn, the bio-based nylon single-component fabric described in the embodiment of the present application uses 20-340D yarn mechanically stretched, and gives the fine-denier bio-based nylon yarn elasticity through double twist processing and reciprocating stretching; that is, the warp and weft yarns are both double-twisted mechanically stretched yarns, making the elastic fabric a single-component fabric with a single component, which does not contain spandex and has good elasticity, which is convenient for subsequent recycling, separation, and secondary use of fabrics and garments.

[0028] The fiber fineness of filaments is usually expressed by a fixed length system, such as a filament length of 9000 meters and a weight of 1 gram, which is 1 denier (denier is abbreviated as D). Fineness (also known as "denier") is a unit of measure for fabrics and yarns, and refers to the weight of a 9000-meter (9-kilometer) long filament / thread at the official moisture regain. Preferably, the warp and weft yarns are both 20D / 24F nylon 510 yarns. This embodiment adopts a high F number combination of 20D / 24F, with an average D number of 0.83D per single filament. 24 0.83D single filaments are twisted and combined into a 20D yarn (the number of roots depends on the number of holes F in the spinneret), which can make the woven fabric have greater fluffiness and directly enhance the elasticity of the fabric. In addition, the bio-based fabric layer 1 can be a plain weave structure with good wear resistance; its texture structure can also be a twill fabric structure and various large and small plaid structures. In some embodiments, the warp and weft nylon 510 yarns have a specification of 20D / 24F*22D / 20F; the biological fabric layer 1 may also include a base yarn of 40D, specifically 40D / 34F

[0029] Waterproofing has always been an important branch of textile functional finishing. The fluorine-containing waterproofing agent C8 used in the early stage contains 8 fluorine-carbon atoms, which has good stability, heat resistance, durability and other characteristics. However, the waterproofing agent C8 contains PFOA (perfluorooctanoic acid), PFOS (perfluorooctane sulfonic acid), FTOH (fluoropolyethanol) and other substances, and long-term contact will cause certain harm to human health and the environment. Although it is gradually changing from C8 to C6 or C4, it still cannot meet the relevant requirements of high environmental performance.

[0030] In the preferred embodiment of the present application, both surfaces of the bio-based fabric layer 1 in the thickness direction are provided with a fluorine-free bio-based waterproof functional layer 2. The fluorine-free bio-based waterproof functional layer 2 is a thin waterproof layer formed by compounding a fluorine-free bio-based waterproof finishing agent on the surface of the bio-based fabric layer 1, which can give the fabric waterproof properties and has the advantages of being non-toxic, easily degradable, and environmentally friendly. The compounding is mainly a physical combination setting mode, and the fluorine-free bio-based waterproof finishing agent components are also adsorbed and combined between the yarns of the bio-based fabric layer 1 and inside the yarns.

[0031] Preferably, the fluorine-free bio-based waterproof functional layer 2 also includes uniformly distributed wear-resistant substances to further improve the wear resistance of the fabric. In addition, the wear-resistant substances are also adsorbed and combined between the yarns and inside the yarns of the bio-based fabric layer 1. In a specific embodiment of the present application, the weight of the bio-based nylon single-component fabric is 40-80g / m 2 , further to 40-60g / m 2 etc.; the bio-based nylon single-component fabric described in this application is a relatively thin, wear-resistant, and highly elastic fabric. The embodiment of this application has no special restrictions on the color, width, etc. of the fabric, which can be white, gray, and various colors. The gram weight of the fabric is generally the number of grams of the fabric per square meter, which can be expressed as GSM or gsm.

[0032] The present application provides a method for preparing the wear-resistant and highly elastic bio-based nylon single-component fabric as described above, comprising:

[0033] 20D-40D nylon 510 yarns are selected and used as warp yarns and weft yarns after double twisting and mechanical stretching, and interwoven to obtain grey fabrics;

[0034] A fluorine-free bio-based waterproof finishing agent is applied to at least one surface of the grey cloth to form a fluorine-free bio-based waterproof functional layer to obtain the wear-resistant and highly elastic bio-based nylon single-component fabric.

[0035] Among them, the characteristics and specifications of the nylon 510 yarn are as described above, and commercially available raw materials in the textile industry can be used. The double-twist mechanical stretching described in the embodiment of the present application includes a double-twist yarn twisting method and mechanical reciprocating stretching. The double-twist process is to first perform 225 twists in an S-twist manner, and after the S-twist of the yarn is completed, the yarn is untwisted, and then 215 twists are performed in a Z-twist manner, so that the fluffiness of the yarn is similar to that of a spring, and the elasticity is further improved. Mechanical reciprocating stretching is a mechanical elasticizing process, which can make the longitudinal extension of the yarn or fabric reach 23%, that is, the length extension ratio is 1:1.23, and the recovery performance reaches 99%. In some embodiments, the elastic parameters of the yarn include: a breaking strength of 4CN / De, and a breaking elongation of 23%, reaching the level of coated yarn.

[0036] In some embodiments of the present application, the above-mentioned bio-based warp and weft yarns are woven according to plain weave to obtain grey cloth (which can be called bio-based grey cloth), which is then pre-treated and dyed. Specifically, the produced bio-based grey cloth can be pre-treated to remove the oil on the cloth surface, and the pre-treatment process is: temperature 80-90°C, chelating dispersant 1-3g / L, refining degreasing agent 3-5g / L, liquid alkali (30wt%) 8-10g / L, speed 40-50m / min. The chemical additives involved in this application are all purchased conventionally in the market, among which the boiling dispersant is such as the 640 model of Hangzhou Meigao Huayi Chemical Co., Ltd., and the refining degreasing agent can be the refining agent CPA product of Doen Biotechnology Co., Ltd., Hangzhou Meigao Huayi Chemical Co., Ltd. M-1016NT, etc. After the pretreatment is completed, the dyeing process is a conventional process, specifically including: adding 0.3-3g / L of acid leveling agent into the dyeing vat (the amount of leveling agent is adjusted according to the amount of dye, and it can also be added at the same time as the dye during dyeing), then adding acid dye, using acetic acid to adjust to a suitable dyeing pH value, heating to 100℃-105℃ at a heating rate of 1-2℃ / min, keeping warm for 30-40min, cooling to 75℃-80℃ after dyeing, adding 1-2g / L of fixing agent, the fixing and keeping warm time is 20-35min, draining, washing with water and then removing the cloth.

[0037] In some embodiments of the present application, the obtained dyed cloth is dried and shaped, and then impregnated with a working solution containing a fluorine-free bio-based waterproof finishing agent and a wear-resistant substance, and dried, so that a fluorine-free bio-based waterproof functional layer with wear-resistant substances evenly distributed on both surfaces of the grey cloth is formed.

[0038] After dyeing is completed and cold stacking is completed, the dyed fabric is steam-washed at a temperature of 102-105° C. for an average of 30 minutes in the embodiment of the present application, so that the elasticity of the fabric is comprehensively improved.

[0039] The preferred embodiment of the present application adopts a waterproof and wear-resistant finishing process to perform a one-bath finishing of the fabric, which can give the fabric waterproof properties, improve the fabric feel, and increase the wear resistance. The working fluid containing the fluorine-free bio-based waterproof finishing agent and the wear-resistant substance described in the embodiment of the present application is prepared by adding water to a commercially available fluorine-free bio-based waterproof finishing agent and a wear-resistant finishing agent. For example, the fluorine-free bio-based waterproof finishing agent is produced by Rudolf -DRY BIO CGR product, the waterproof component of which is derived from natural waste in the food processing process, is a durable fluorine-free waterproof agent, the active ingredient is composed of more than 90% biomass, is solvent-free, non-flammable, and has strong environmental protection. In addition, the fluorine-free bio-based waterproof finishing agent is Huntsman's Zelan R3 fluorine-free waterproofing agent product (abbreviated as R3). The wear-resistant finishing agent is an organic silicone smoothing agent, which makes the surface of the fabric smooth, improves the touch and reduces friction; KF4032-R wear-resistant finishing agent can be used, purchased from Zhejiang Kefeng Silicone Co., Ltd.

[0040] In the waterproof and wear-resistant finishing of the above embodiment, the concentration of the fluorine-free bio-based waterproof finishing agent is 20-40 g / L, preferably 30 g / L; the concentration of the wear-resistant substance is 5-10 g / L, preferably 10 g / L. In addition, the liquid rate of the working liquid in the padding is 60-70%; the drying temperature is preferably 150-170°C, and the vehicle speed can be 20-30 m / min.

[0041] As a preferred method, the woven thin bio-based fabric is dyed and finished with waterproof and wear-resistant finishing to give it waterproof and high wear-resistant properties. In addition, the warp and weft yarns are made of 20D nylon 510 yarns, and a special texturing process is used. The 100% bio-based nylon yarn and fabrics do not need to be coated with spandex to have high elasticity, which also meets environmental protection requirements.

[0042] The present application is further described in detail below in conjunction with the accompanying drawings and actual embodiments. The embodiments described herein are only helpful for understanding the present application, but are not intended to be limiting of the present application. Among them, the raw materials involved in the embodiments of the present application are commercially available. Chelating dispersant: 640, Hangzhou Meigao Huayi Chemical Co., Ltd.; refining degreasing agent: M-1016NT, Hangzhou Meigao Huayi Chemical Co., Ltd.; acid leveling agent: 702B, Zhejiang Annuo Aromatic Amine Chemicals Co., Ltd.; color fixing agent: FIX-3236, Suzhou Weimin Chemical Industry Co., Ltd. Waterproof finishing agent: R3 fluorine-free waterproofing agent, Huntsman Chemical Trading (Shanghai) Co., Ltd.; wear-resistant finishing agent: KF4032-R, Zhejiang Kefeng Silicone Co., Ltd.

[0043] Example 1

[0044] This embodiment provides a wear-resistant, highly elastic bio-based nylon single-component fabric, whose warp and weft yarns are 20D / 24F nylon 510 yarns, and a special texturing process (double-twist mechanical stretching) is used to make the 100% bio-based nylon yarn have high elasticity, a breaking strength of 4CN / De, and a breaking elongation of 23%; the warp and weft yarns are woven into a bio-based grey cloth according to a plain weave (the plain fabric weight is 41gsm).

[0045] Pretreatment and dyeing of bio-based grey fabric: The produced bio-based grey fabric is pretreated with the following process: temperature 90°C, chelating dispersant 2g / L, refining degreasing agent 5g / L, liquid alkali (30%) 10g / L, speed 50m / min. After the pretreatment is completed, the grey fabric is placed in the dyeing vat, acid leveling agent is added, and then acid dye is added. Acetic acid is used to adjust the pH value of dyeing to a suitable value, and the temperature is raised to 100°C at a heating rate of 1.5°C / min. After keeping the temperature for 40min, 2g / L color fixing agent is added, and the color fixing time is 30min. The liquid is drained, and the fabric is washed with water before being discharged.

[0046] After dyeing and cold stacking, the dyed fabric is steam-washed at a temperature of 103° C. for an average of 30 minutes in the embodiment of the present application.

[0047] Waterproof and wear-resistant finishing: After drying and finalizing, waterproof finishing agent (fluorine-free bio-based waterproofing agent) and wear-resistant finishing agent are finished on the fabric surface by padding. The amount of fluorine-free bio-based waterproofing agent is 30g / L, the amount of wear-resistant finishing agent is 10g / L, the liquid carrying rate is 60%, the temperature is 165℃, and the speed is 25m / min.

[0048] The obtained bio-based nylon single-component fabric was subjected to performance tests, as follows.

[0049] Elasticity and elastic recovery: The elasticity and recovery performance of the fabric were measured by constant force stretching. The spacing length was 200 mm, the fixed force was 20 N, the speed was 100 mm / s, and the recovery time was 10 min. The results are shown in Table 1.

[0050] Table 1 Elasticity test results of bio-based nylon single-component fabrics

[0051]

[0052] The scanning electron microscope image (EM image) of the fabric sample after 10,000 revolutions of friction shows that the yarn is intact and the structure is clear; the EM image of the fabric sample after 20,000 revolutions of friction shows that only a few yarns are broken, and it has good wear resistance.

[0053] After waterproof and wear-resistant finishing, the water-repellent performance of the fabric surface can reach 95 points, and it can still reach more than 80 points after washing 10 times.

[0054] Abrasion test: GB / T 21196.2-2007 Martindale method for textiles - Determination of abrasion resistance of fabrics;

[0055] Waterproof test: GB / T 4745-2012 Testing and evaluation of the waterproof performance of textiles - Water dipping method.

[0056] The elasticity of the traditional nylon spandex core-spun yarn is basically the same as that of the nylon stretch yarn without spandex in this embodiment; in the wear test results of the ordinary nylon fabric samples without finishing, there is a certain amount of yarn breakage after 20,000 turns of friction, and obvious damage can be seen after 50,000 turns of friction.

[0057] Example 2

[0058] The bio-based nylon single-component woven fabric (dt-3530) has specifications of 20D / 24F*22D / 20F+40D / 34F, and the warp and weft yarns are woven into a bio-based grey fabric with a gram weight of 46gsm according to a plain weave, and the warp and weft density is 91*65; a 40D base yarn is newly added.

[0059] Pretreatment and dyeing of bio-based nylon fabric: The produced bio-based grey fabric is pretreated to remove the oil on the fabric surface. The pretreatment process is as follows: temperature 90°C, chelating dispersant 2g / L, refining degreasing agent 5g / L, liquid alkali (30%) 10g / L, speed 50m / min; add acid leveling agent to the dyeing vat, then add acid dye, use acetic acid to adjust to the appropriate dyeing pH value, heat to 100°C at a heating rate of 1.5°C / min, keep warm for 40min, then add 2g / L color fixing agent, the color fixing time is 35min, drain, wash with water and then take out the fabric.

[0060] Waterproof and wear-resistant finishing: After drying and finalizing, the waterproof finishing agent and the wear-resistant finishing agent are finished on the surface of the fabric by padding. The amount of fluorine-free waterproofing agent is 20g / L, the amount of wear-resistant finishing agent is 10g / L, the liquid carrying rate is 65%, the temperature is 155°C, and the speed is 25m / min. The chemical additives involved are the same as those in Example 1.

[0061] The obtained bio-based nylon single-component fabric has good wear resistance, reaching the level of 50,000 revolutions.

[0062] It can be seen from the above embodiments that the bio-based nylon single-component fabric described in the present application includes: a bio-based fabric layer and a fluorine-free bio-based waterproof functional layer, wherein the fluorine-free bio-based waterproof functional layer is arranged on at least one surface of the bio-based fabric layer; the warp and weft yarns of the bio-based fabric layer are made of fine-denier bio-based nylon yarn (20D-40D nylon 510 yarn), which is endowed with high elasticity through double-twisting mechanical stretching. The bio-based nylon single-component fabric is mainly a single component of nylon, which is easy to recycle and reuse, and has the high wear resistance of nylon 510. The fluorine-free bio-based waterproof functional layer on the bio-based fabric layer can give the fabric waterproof properties, and also has the advantages of being non-toxic, easily degradable, and environmentally friendly.

[0063] The above description is only a preferred embodiment of the present application, and does not limit the implementation mode and protection scope of the present application. For those skilled in the art, it should be aware that any solution obtained by using the equivalent substitutions and obvious changes made by using the description and illustrations of the present application should be included in the protection scope of the present application.

Claims

1. A wear-resistant, highly elastic bio-based nylon single-component fabric, characterized in that: It comprises a bio-based fabric layer, and a fluorine-free bio-based waterproof functional layer arranged on at least one surface of the bio-based fabric layer; the bio-based fabric layer is formed by interweaving warp yarns and weft yarns, the warp yarns and weft yarns are both 20D-40D nylon 510 yarns, and the warp yarns and weft yarns are both double-twisted mechanically stretched yarns.

2. The bio-based nylon single-component fabric according to claim 1, characterized in that: The warp yarn and the weft yarn are both 20-22D / 20-34F nylon 510 yarns.

3. The bio-based nylon single-component fabric according to claim 1, characterized in that: The weight of the bio-based nylon single-component fabric is 40-80g / m 2 .

4. The bio-based nylon single-component fabric according to any one of claims 1 to 3, characterized in that: Both surfaces of the bio-based fabric layer are provided with fluorine-free bio-based waterproof functional layers.

5. The bio-based nylon single-component fabric according to any one of claims 1 to 3, characterized in that: The bio-based fabric layer has a plain weave structure, a twill weave structure or a checkered weave structure.

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