Waterproof antifouling fabric and preparation process thereof

Abstract

The invention relates to the field of functional fabrics, and discloses a waterproof antifouling fabric and a preparation process thereof. The waterproof and antifouling fabric comprises a fabric layer and a waterproof and antifouling coating, and the waterproof and antifouling coating is prepared by curing waterproof and antifouling paint. The waterproof antifouling paint is prepared from the following raw materials in parts by weight: 25 to 30 parts of waterborne polyurethane resin emulsion, 8 to 12 parts of organic silicon modified polyurethane emulsion, 5 to 8 parts of antifouling additive, 2 to 4 parts of adhesion promoter, 0.2 to 0.5 part of curing agent, 0.1 to 0.3 part of antioxidant and 20 to 30 parts of water, the antifouling auxiliary agent is prepared by reacting dodecyl isocyanate, hydroxyl-terminated dimethyl methyl vinyl (siloxane and polysiloxane) and a catalyst. The waterproof and antifouling fabric prepared by the invention has better waterproof and antifouling stability, and the problems of local stripping and creases are not easy to occur after the fabric is worn, washed, folded and stored for a long time.

Description

Technical Field

[0001] This application relates to the field of functional fabrics, and in particular to a waterproof and stain-resistant fabric and its preparation process. Background Technology

[0002] Waterproof and stain-resistant fabrics are functional fabrics that achieve the effect of blocking the penetration of liquids and stains by applying chemical coatings or special physical structures (such as microporous membranes) to a base fabric. These fabrics not only possess excellent waterproof and stain-resistant properties, but also typically have good abrasion resistance and durability, greatly improving the ease of wearing and lifespan of clothing in complex environments. They are widely used in clothing fields with high performance requirements, such as waterproof jackets, coats, ski suits, and other types of outdoor sportswear.

[0003] The waterproof and stain-resistant fabrics used in jackets are typically formed by coating a continuous waterproof and stain-resistant functional layer onto the surface of the jacket fabric, such as polyester, nylon, or natural / artificial leather. This structural design allows the jacket to retain the original texture, breathability, and wearing comfort of the base fabric to the greatest extent possible while giving it excellent waterproof and stain-resistant properties.

[0004] Existing waterproof and stain-resistant layers mostly use polyurethane (PU) coatings. While polyurethane coatings have good adhesion and flexibility, their durability and overall performance are not well balanced under long-term or extreme usage conditions. Specifically: First, the waterproof and oil-repellent properties of polyurethane coatings decrease over time; second, after repeated washing, the coating is prone to localized peeling, and after a period of wear, folding, and storage, especially after long periods of inactivity (such as seasonal storage), creases easily form at the folds, reducing the lifespan of the jacket. Summary of the Invention

[0005] To address the problem that existing waterproof and stain-resistant fabrics used in jackets tend to experience reduced waterproof and stain-resistant performance, as well as localized peeling and creases, after wearing, washing, and folding, this application provides a waterproof and stain-resistant fabric and its manufacturing process.

[0006] In a first aspect, this application provides a waterproof and stain-resistant fabric, employing the following technical solution: A waterproof and stain-resistant fabric includes a fabric layer and a waterproof and stain-resistant coating, wherein the waterproof and stain-resistant coating is obtained by curing a waterproof and stain-resistant paint, and the waterproof and stain-resistant paint is obtained from the following raw materials in parts by weight: 25-30 parts of waterborne polyurethane resin emulsion 8-12 parts of silicone-modified polyurethane emulsion 5-8 parts antifouling additive 2-4 parts adhesion promoter Hardener 0.2-0.5 parts Antioxidant 0.1-0.3 parts 20-30 parts water; The antifouling additive is prepared by reacting dodecyl isocyanate, hydroxyl-terminated dimethylmethyl vinyl (siloxane and polysiloxane) and a catalyst.

[0007] By adopting the above technical solution, the fabric layer is the basic structure of the waterproof and stain-resistant fabric, and the waterproof and stain-resistant coating is made by curing the waterproof and stain-resistant paint, which plays the role of blocking the penetration of liquid and stains. In waterproof and stain-resistant coatings, waterborne polyurethane resin emulsions possess excellent film-forming properties and flexibility, enabling the formation of continuous waterproof and stain-resistant coatings. Silicone-modified polyurethane emulsions further enhance the waterproofness, water resistance, and flexibility of the coating. Stain-resistant additives, prepared by reacting dodecyl isocyanate, hydroxyl-terminated dimethylmethyl vinyl (siloxane and polysiloxane), and a catalyst, can enhance the waterproof and stain-resistant properties of the coating while improving its flexibility. Adhesion promoters strengthen the bond between the waterproof and stain-resistant coating and the fabric layer, and can further synergize with the stain-resistant additives and silicone-modified polyurethane emulsions, resulting in a more firmly adhered waterproof and stain-resistant coating to the fabric layer, while also improving the cohesion and flexibility of the coating. Curing agents promote the curing of the waterproof and stain-resistant coating and improve its curing stability. Antioxidants prevent oxidation of the waterproof and stain-resistant coating during use, extending its service life. Water, as a solvent, facilitates uniform mixing of the raw materials.

[0008] The waterproof and stain-resistant fabric obtained in this application has good waterproof and stain-resistant stability. After long-term wear, washing, folding and storage, it is not easy to have problems such as local peeling and creases, which greatly improves the wearing convenience and service life of clothing in complex environments.

[0009] Preferably, the antifouling additive is prepared by reacting the following raw materials in parts by weight: 15-20 parts of dodecyl isocyanate Hydroxyl-terminated dimethylmethyl vinyl (siloxane and polysiloxane) 7-12 parts 40-60 parts of solvent Catalyst 0.02-0.04 parts.

[0010] By employing the above technical solution, dodecyl isocyanate reacts with hydroxyl-terminated dimethylmethyl vinyl (siloxane and polysiloxane) under the action of a catalyst. The isocyanate group reacts with the hydroxyl group to form a chemical bond, generating a stain-resistant additive with long-chain alkyl and vinylsilane structures. Adding this stain-resistant additive to a waterproof and stain-resistant coating can form a uniform and stable protective layer on the surface of the waterproof and stain-resistant fabric. On the one hand, dodecyl groups have good hydrophobicity and stain resistance, effectively blocking the penetration of liquids and stains, thus improving the fabric's waterproof and stain-resistant capabilities. On the other hand, the siloxane structure gives the protective layer good flexibility and stability, making the fabric less prone to localized peeling and creases after long-term wear, washing, and folding, thereby improving the stability and durability of the waterproof and stain-resistant fabric.

[0011] Preferably, the antifouling additive is prepared by the following steps: Dodecyl isocyanate, hydroxyl-terminated dimethylmethyl vinyl (siloxane and polysiloxane), solvent and catalyst are added to a reaction apparatus, and the reaction is carried out under vacuum and heated. The solvent is removed by vacuum distillation to obtain the antifouling additive.

[0012] By adopting the above technical solution, the heating reaction under vacuum conditions can reduce the contact between reactants and impurities such as oxygen, avoid side reactions, and ensure the purity and performance of the antifouling additive. The solvent removal by vacuum distillation can effectively remove the solvent, making the obtained antifouling additive purer, thereby improving the quality of waterproof and antifouling coatings, and ultimately giving the waterproof and antifouling fabric better waterproof and antifouling stability.

[0013] Preferably, the reaction temperature is 80-90℃ and the reaction time is 2-3h.

[0014] By adopting the above technical solution, the optimal reaction temperature allows dodecyl isocyanate and hydroxyl-terminated dimethylmethyl vinyl (siloxane and polysiloxane) to react fully, thereby improving reaction efficiency and reducing side reactions.

[0015] Preferably, the solvent is toluene and / or xylene, and the catalyst is dibutyltin dilaurate.

[0016] By adopting the above technical solution and using toluene and / or xylene as solvents, a good dissolution environment can be provided for the reaction of antifouling additives, allowing raw materials such as dodecyl isocyanate and hydroxyl-terminated dimethyl methyl vinyl (siloxane and polysiloxane) to be fully mixed and reacted; using dibutyltin dilaurate as a catalyst can effectively accelerate the reaction rate of antifouling additives and promote the smooth progress of the reaction.

[0017] Preferably, the adhesion promoter is composed of 3-isocyanate-propyltrimethoxysilane and trihydroxyethyl isocyanurate in a weight ratio of (1.5-2.5):1.

[0018] By adopting the above technical solution, the isocyanate groups in trihydroxyethyl isocyanurate and 3-isocyanate-propyltrimethoxysilane can further react with the resin components in the waterproof and antifouling coating to enhance the bonding force between the waterproof and antifouling coating and the fabric layer. The two work together to further promote the cross-linking and curing of the waterproof and antifouling coating, improve the density of the waterproof and antifouling coating, and thus enhance the adhesion between the waterproof and antifouling coating and the fabric layer.

[0019] Preferably, the curing agent is a aziridine and / or an isocyanate curing agent.

[0020] By adopting the above technical solution, the curing agent can better cure the waterproof and stain-resistant coating to form a waterproof and stain-resistant coating layer, enhance the bonding force between the coating layer and the fabric layer, and thus improve the waterproof and stain-resistant stability of the waterproof and stain-resistant fabric.

[0021] Preferably, the antioxidant is composed of antioxidant 1010 and antioxidant 168 in a weight ratio of 1:(1-2).

[0022] By adopting the above technical solution and using the above antioxidant, the oxidation process of the waterproof and stain-resistant coating can be effectively delayed, the antioxidant properties of the waterproof and stain-resistant fabric can be enhanced, and the waterproof and stain-resistant fabric can better maintain its waterproof and stain-resistant stability during long-term use, reducing the problem of coating performance degradation caused by oxidation.

[0023] Secondly, this application provides a manufacturing process for a waterproof and stain-resistant fabric, employing the following technical solution: A manufacturing process for a waterproof and stain-resistant fabric includes the following steps: S1. Add waterborne polyurethane resin emulsion, silicone-modified polyurethane emulsion, antifouling agent, adhesion promoter, curing agent, antioxidant and water to a mixing device, stir evenly, degas, and obtain a waterproof and antifouling coating. S2. Apply waterproof and stain-resistant coating to the surface of the fabric layer and dry to obtain waterproof and stain-resistant fabric.

[0024] By adopting the above technical solution, step S1 involves mixing the water-based polyurethane resin emulsion, silicone-modified polyurethane emulsion, antifouling agent, adhesion promoter, curing agent, antioxidant, and water evenly and degassing them. This ensures that the various raw materials are fully mixed and that air bubbles are removed, guaranteeing that the resulting waterproof and antifouling coating has stable and uniform performance. Step S2 involves applying the waterproof and antifouling coating to the surface of the fabric layer and drying it. This forms a uniform waterproof and antifouling coating on the surface of the fabric layer, thereby obtaining a coating with good waterproof and antifouling stability.

[0025] Preferably, the application rate of the waterproof and stain-resistant coating is 15-25 g / m². 2 The drying temperature is 100-120℃.

[0026] By adopting the above technical solutions and controlling the optimal coating amount, a waterproof and stain-resistant coating of suitable thickness can be formed on the surface of the fabric layer, which not only ensures the waterproof and stain-resistant effect, but also prevents the original texture, breathability and wearing comfort of the fabric from being affected by the excessive thickness of the coating; optimizing the drying temperature can fully cure the waterproof and stain-resistant coating and form a stable waterproof and stain-resistant coating.

[0027] In summary, this application includes at least one of the following beneficial technical effects: 1. The waterproof and stain-resistant fabric of this application is made from water-based polyurethane resin emulsion, silicone-modified polyurethane emulsion, stain-resistant additives, adhesion promoters, curing agents, antioxidants, and water. The stain-resistant additives are prepared by reacting dodecyl isocyanate, hydroxyl-terminated dimethyl methyl vinyl (siloxane and polysiloxane), and a catalyst. The waterproof and stain-resistant fabric prepared by this application has good waterproof and stain-resistant stability. After long-term wear, washing, folding, and storage, it is not easy to have local peeling and creases, which greatly improves the wearing convenience and service life of clothing in complex environments.

[0028] 2. The adhesion promoter is composed of 3-isocyanate-propyltrimethoxysilane and trihydroxyethyl isocyanurate, which can enhance the bonding force between the waterproof and stain-resistant coating and the fabric layer, making the waterproof and stain-resistant fabric less prone to local peeling and creases after long-term wear and washing, thus improving the durability of the fabric.

[0029] 3. The preparation process of waterproof and stain-resistant fabric is as follows: First, the raw materials are stirred evenly and degassed to obtain a waterproof and stain-resistant coating. Then, the coating is applied to the surface of the fabric layer and dried. This process is simple and feasible, and the resulting waterproof and stain-resistant fabric has good performance stability. Detailed Implementation

[0030] The present application will be further described in detail below with reference to the embodiments.

[0031] The following are some of the sources and specifications of the raw materials used in this application. The raw materials used in the preparation examples and embodiments of this application can all be obtained commercially, including but not limited to the following models and manufacturers of raw materials. Raw materials with equivalent performance can also be used: 1. Waterborne polyurethane resin emulsion: UGREEN Chemical JLY-T01; 2. Organosilicon-modified polyurethane emulsion: Sidon New Materials FR1451; 3. Hydroxyl-terminated dimethylmethyl vinyl (siloxane and polysiloxane): CAS No. 67923-19-7; 4. Aziridine: XR-100; 5. Isocyanate curing agent: Manster BT-110; Preparation example of antifouling additive Preparation Example 1 Preparation Example 1 discloses an antifouling additive, which is prepared by the following steps: 1.5 kg of dodecyl isocyanate, 0.7 kg of hydroxyl-terminated dimethylmethyl vinyl (siloxane and polysiloxane), 4 kg of toluene as solvent, and 0.002 kg of dibutyltin dilaurate as catalyst were added to a reaction vessel. The reaction was carried out under a vacuum of -0.085 MPa and heated to 80 °C for 3 h. The solvent was then removed by vacuum distillation to obtain the antifouling additive.

[0032] Preparation Examples 2-3 The difference between Preparation Example 2-3 and Preparation Example 1 lies in the amount of raw materials used and the preparation conditions, as detailed in Table 1 below.

[0033] Table 1. Parameters for Preparation Examples 1-3

[0034] Preparation of Comparative Example 1 The difference between Comparative Example 1 and Preparation Example 3 is that the hydroxyl-terminated dimethylmethyl vinyl (siloxane and polysiloxane) was replaced in equal amounts with hydroxyl-terminated polydimethylsiloxane with a molecular weight of 600. Otherwise, they were the same as in Preparation Example 3.

[0035] Preparation of Comparative Example 2 The difference between Comparative Example 2 and Preparation Example 3 is that dodecyl isocyanate was replaced with octadecyl isocyanate in equal amounts, while the rest is the same as Preparation Example 3. Example Example 1

[0036] Example 1 discloses a waterproof and stain-resistant fabric, which is prepared by the following steps: S1. 2.5 kg of waterborne polyurethane resin emulsion, 0.8 kg of organosilicon modified polyurethane emulsion, 0.5 kg of antifouling additive prepared in Preparation Example 1, 0.2 kg of adhesion promoter, 0.02 kg of aziridine as curing agent, 0.01 kg of antioxidant and 2 kg of water are added to a mixing device, stirred evenly, and degassed to obtain a waterproof and antifouling coating. S2. Apply the waterproof and stain-resistant coating to the surface of the fabric layer, with a coating amount of 15g / m². 2 The drying temperature was controlled at 100℃ and the drying time was 30 minutes to obtain a waterproof and stain-resistant fabric. The outer fabric layer is plain weave polyester fabric, 0.3mm thick, with a weight of 320g / m². 2 ; The adhesion promoter is 3-isocyanate-propyltrimethoxysilane; the antioxidant consists of antioxidant 1010 and antioxidant 168 in a weight ratio of 1:1.

[0037] Example 2-3 The difference between Examples 1-3 and Example 1 lies in the amount of raw materials and the preparation process parameters, as detailed in Table 2 below.

[0038] Table 2 Parameter table for Examples 1-3

[0039] Example 4

[0040] The difference between Example 4 and Example 3 is that the adhesion promoter is composed of 3-isocyanate-propyltrimethoxysilane and trihydroxyethyl isocyanurate in a weight ratio of 1.5:1, while the rest is the same as in Example 3.

[0041] Example 5

[0042] The difference between Example 5 and Example 3 is that the adhesion promoter is composed of 3-isocyanate-propyltrimethoxysilane and trihydroxyethyl isocyanurate in a weight ratio of 2.5:1, while the rest is the same as in Example 3. Comparative Example

[0043] Comparative Example 1 The difference between Comparative Example 1 and Example 3 is that the antifouling additive was derived from the preparation of Comparative Example 1, while the rest is the same as Example 3.

[0044] Comparative Example 2 The difference between Comparative Example 2 and Example 3 is that the antifouling additive was derived from the preparation of Comparative Example 1, while the rest is the same as Example 3.

[0045] Comparative Example 3 The difference between Comparative Example 3 and Example 3 is that the antifouling agent is trifluoropropyltrichlorosilane, while the rest is the same as in Example 3.

[0046] Comparative Example 4 The difference between Comparative Example 4 and Example 3 is that the adhesion promoter was replaced with an equal amount of waterborne polyurethane resin emulsion, while the rest is the same as Example 3.

[0047] Comparative Example 5 The difference between Comparative Example 5 and Example 3 is that the silicone-modified polyurethane emulsion was replaced with an equal amount of water-based polyurethane resin emulsion, while the rest was the same as in Example 3. Performance testing

[0048] The following tests were conducted on the performance of the waterproof and stain-resistant fabrics obtained in Examples 1-5 and Comparative Examples 1-5: 1. Waterproof test The waterproof and stain-resistant fabric was washed in a washing machine with 1% commercially available laundry detergent, and the quick wash mode was used for 15 minutes. The cycle test was repeated 25 times. After drying, a water droplet angle tester was used to test the water droplet angle of the waterproof and stain-resistant fabric before and after the test, and the test results were recorded. 2. Oil resistance test: The waterproof and stain-resistant fabric was washed in a washing machine with 1% commercially available laundry detergent, using the quick wash mode for 15 minutes, and the cycle was repeated 25 times. After drying, the oil repellency level of the waterproof and stain-resistant fabric before and after the test was tested according to the test method in AATCC 118, and the test results were recorded. 3. Abrasion resistance test The Martindale abrasion tester was used to test the number of rubs that caused abrasion marks on the surface of the waterproof and stain-resistant fabric, with a pressure of 795g and a speed of 50rpm. The test results were recorded. 4. Crease test A 20cm x 20cm waterproof and stain-resistant fabric was folded twice and placed in a crease meter with a spring pressure plate. A pressure of 500g was applied, and the fabric was placed under constant temperature and humidity conditions of 30℃ and 65% for 7 days. After the test, the waterproof and stain-resistant fabric was removed and hung vertically to recover for 60 minutes. The surface creases were then observed, and the crease grade was recorded. Level 5: Smooth surface, no creases; Level 4: Smooth surface with slight creases; Grade 3: The surface has slight wrinkles and moderate creases.

[0049] Grade 2: The surface is uneven and the creases are obvious; Grade 1: The surface is obviously uneven, and the creases are very obvious.

[0050] The following are the performance test data of the waterproof and stain-resistant fabrics prepared in Examples 1-5 and Comparative Examples 1-5, as detailed in Table 3 below.

[0051] Table 3 Performance test data of the waterproof and stain-resistant fabrics prepared in Examples 1-5 and Comparative Examples 1-5

[0052] Combining Examples 1-3 and Examples 4-5, it can be concluded that optimizing the proportion of adhesion promoters can improve the waterproof and stain-resistant stability of the prepared waterproof and stain-resistant fabric, while also improving the crease performance of the waterproof and stain-resistant fabric after long-term folding. Compared with Example 1, Examples 4-5 show an increased water droplet angle, and the change in water droplet angle is reduced after washing. The oil repellency rating is level 6 after washing, and the crease rating is level 5.

[0053] Based on Example 1 and Comparative Examples 1-3, and in conjunction with Table 3, it can be concluded that using the antifouling agent prepared in this application can significantly improve the waterproof and antifouling stability of the prepared waterproof and antifouling fabric, while also improving the crease performance of the waterproof and antifouling fabric after long-term folding. In Comparative Examples 1 and 2, the raw materials for preparing the antifouling agent were changed, resulting in a significantly smaller water droplet angle in the prepared waterproof and antifouling fabric. Furthermore, after a water washing test, the water droplet angle change rate increased, the oil repellency level decreased to level 5, and after another water washing test, the oil repellency level decreased to level 4, with a crease level of level 3. In Comparative Example 3, trifluoropropyltrichlorosilane was used as the antifouling agent, resulting in a lower water droplet angle, a lower oil repellency level, and a crease level of level 2, with obvious creases appearing. This further demonstrates that using the antifouling agent of this application can improve the waterproof and antifouling performance of the prepared waterproof and antifouling fabric while also enhancing its flexibility, thus making the waterproof and antifouling fabric less prone to creases during long-term use and folded storage.

[0054] Based on Examples 1 and 4-5, and in conjunction with Table 3, it can be concluded that the silicone-modified polyurethane emulsion, antifouling agent, and adhesion promoter of this application have a good synergistic effect, significantly improving the overall performance of the resulting waterproof and antifouling fabric. In Comparative Example 4, replacing the adhesion promoter with a water-based polyurethane resin emulsion reduced the water droplet angle and oil repellency of the resulting waterproof and antifouling fabric, as well as lowering the crease level. In Comparative Example 5, replacing the silicone-modified polyurethane emulsion with a water-based polyurethane resin emulsion significantly reduced the water droplet angle and oil repellency of the resulting waterproof and antifouling fabric, and lowered the crease level to level 2. This further verifies the synergistic effect of the three components.

[0055] 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 waterproof and stain-resistant fabric, characterized in that, It includes a fabric layer and a waterproof and stain-resistant coating, wherein the waterproof and stain-resistant coating is obtained by curing a waterproof and stain-resistant paint, and the waterproof and stain-resistant paint is obtained from the following raw materials in parts by weight: 25-30 parts of waterborne polyurethane resin emulsion; 8-12 parts of silicone-modified polyurethane emulsion; 5-8 parts antifouling additive; Adhesion promoter 2-4 parts; Hardener 0.2-0.5 parts; Antioxidant 0.1-0.3 parts; 20-30 parts water; The antifouling additive is prepared by reacting dodecyl isocyanate, hydroxyl-terminated dimethylmethyl vinyl (siloxane and polysiloxane) and a catalyst.

2. The waterproof and stain-resistant fabric according to claim 1, characterized in that, The antifouling additive is prepared by reacting the following raw materials in parts by weight: 15-20 parts of dodecyl isocyanate Hydroxyl-terminated dimethylmethyl vinyl (siloxane and polysiloxane) 7-12 parts 40-60 parts of solvent Catalyst 0.02-0.04 parts.

3. A waterproof and stain-resistant fabric according to claim 1 or 2, characterized in that, Antifouling additives are prepared by the following steps: Dodecyl isocyanate, hydroxyl-terminated dimethylmethyl vinyl (siloxane and polysiloxane), solvent and catalyst are added to a reaction apparatus, and the reaction is carried out under vacuum and heated. The solvent is removed by vacuum distillation to obtain the antifouling additive.

4. The waterproof and stain-resistant fabric according to claim 3, characterized in that, The reaction temperature is 80-90℃, and the reaction time is 2-3 hours.

5. The waterproof and stain-resistant fabric according to claim 1, characterized in that, The solvent is toluene and / or xylene, and the catalyst is dibutyltin dilaurate.

6. The waterproof and stain-resistant fabric according to claim 1, characterized in that, The adhesion promoter is composed of 3-isocyanate-propyltrimethoxysilane and trihydroxyethyl isocyanurate in a weight ratio of (1.5-2.5):

1.

7. The waterproof and stain-resistant fabric according to claim 1, characterized in that, The curing agent is a aziridine and / or an isocyanate curing agent.

8. The waterproof and stain-resistant fabric according to claim 1, characterized in that, The antioxidant is composed of antioxidant 1010 and antioxidant 168 in a weight ratio of 1:(1-2).

9. A manufacturing process for a waterproof and stain-resistant fabric as described in any one of claims 1-8, characterized in that, Includes the following steps: S1. Add waterborne polyurethane resin emulsion, silicone-modified polyurethane emulsion, antifouling agent, adhesion promoter, curing agent, antioxidant and water to a mixing device, stir evenly, degas, and obtain a waterproof and antifouling coating. S2. Apply waterproof and stain-resistant coating to the surface of the fabric layer and dry to obtain waterproof and stain-resistant fabric.

10. The manufacturing process of a waterproof and stain-resistant fabric according to claim 9, characterized in that, The application rate of waterproof and stain-resistant coating is 15-25 g / m². 2 The drying temperature is 100-120℃.

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