Waterproof stain-resistant composite woven fabric and preparation process thereof

Abstract

The invention relates to a waterproof stain-resistant composite woven fabric and a preparation process thereof, and belongs to the technical field of woven fabrics. The prepared composite woven fabric comprises a film covering layer and a woven layer from top to bottom, the woven layer is formed by weaving polypropylene fibers and nylon fibers, and 5 wt% of oleamide is added into the polypropylene fibers. The film coating layer is formed by coating a waterproof and stain-resistant coating, and the formula of the waterproof and stain-resistant coating comprises the following components in parts by weight: 45-55 parts of a waterborne polyurethane emulsion, 5-15 parts of a waterborne acrylic emulsion, 10-20 parts of a filler, 3-5 parts of polydimethylsiloxane, 3-5 parts of dimethyl silicone oil and 1-3 parts of a film forming accelerator. The prepared composite woven cloth has the advantages of being good in waterproofness and long-acting in stain resistance.

Description

Technical Field

[0001] The invention belongs to the technical field of woven fabrics and relates to a waterproof and stain-resistant composite woven fabric and a preparation process thereof. Background Art

[0002] Woven cloth, as a common material, is widely used in packaging, construction, agriculture, transportation and other fields due to its lightness, durability and easy processing. However, traditional woven cloth has obvious deficiencies in waterproof and stain resistance, which limits its application in outdoor environments. Coated woven cloth combines the substrate strength of woven cloth with the protective performance of the coating layer, thereby achieving a significant improvement in performance. It not only retains the original unique texture and aesthetic appearance of the woven cloth, but also gives the woven cloth waterproof and moisture-proof properties by coating a specific film layer. These excellent properties enable the coated woven cloth to remain in good use under various harsh environments, greatly expanding its scope of application. Therefore, it is particularly important to develop a waterproof and stain-resistant composite woven cloth with better performance and a wider range of applications and its preparation process. Summary of the invention

[0003] The purpose of the present invention is to provide a waterproof and stain-resistant composite woven fabric and a preparation process thereof, which has the characteristics of good waterproofness and long-term stain resistance.

[0004] The purpose of the present invention can be achieved through the following technical solutions: A waterproof and stain-resistant composite woven fabric, the composite woven fabric comprises a coating layer and a woven layer from top to bottom, wherein the coating layer is coated with a waterproof and stain-resistant coating, and the formula of the waterproof and stain-resistant coating comprises the following components, in parts by weight, 45-55 parts of an aqueous polyurethane emulsion, 5-15 parts of an aqueous acrylic emulsion, 10-20 parts of a filler, 3-5 parts of polydimethylsiloxane, 3-5 parts of dimethyl silicone oil, 1-3 parts of a film promoter, Wherein, the preparation method of the filler is as follows: S1-1: Titanium tetraisopropoxide, ammonium fluoride and deionized water were mixed, 3 M nitric acid solution was added to adjust the pH to 2-3, and then cerium nitrate was added, stirred at 60-80 °C at a speed of 500-600 r / min for 2-4 h, washed with deionized water and dried in a vacuum drying oven at 60 °C for 10-14 h, then transferred to a muffle furnace for calcination, cooled to room temperature, and then ball milled in a ball mill for 1.5-2.5 h at a ball mill speed of 250-350 r / min to obtain powder A; S1-2: mica powder and intercalant were mixed in a mass ratio of 1:(19-21), ultrasonicated at 50-60°C for 2-4 h, washed with deionized water, and dried in a vacuum oven at 60°C for 6-10 h to obtain powder B; S1-3: Powder A, powder B and graphite phase carbon nitride were mixed in a mass ratio of 1:2:0.5, and the mixture was put into a ball mill for 1 to 2 h at a ball milling speed of 150 to 250 r / min. Toluene diphenyl phosphate was then added, and the speed was maintained while continuing the ball milling for 1.5 h to obtain the filler.

[0005] As a preferred technical solution of the present invention, the braided layer is woven from polypropylene fibers and nylon fibers, wherein 5 wt % oleic acid amide is added to the polypropylene fibers.

[0006] As a preferred technical solution of the present invention, in the S1-1, titanium tetraisopropoxide, ammonium fluoride and deionized water are mixed in a mass ratio of 1: (0.1-0.2): (18-20).

[0007] As a preferred technical solution of the present invention, the added amount of cerium nitrate in S1-1 is 0.5 times the mass of ammonium fluoride.

[0008] As a preferred technical solution of the present invention, the calcination temperature in S1-1 is 500-600°C, and the calcination time is 2-3 h.

[0009] As a preferred technical solution of the present invention, the intercalant in S1-2 is a mixture of sulfuric acid, hydrogen peroxide and deionized water in a volume ratio of 1:1:2.

[0010] As a preferred technical solution of the present invention, the addition amount of toluene diphenyl phosphate in S1-3 is 3-5 wt% of the total mass of powder A, powder B and graphite phase carbon nitride.

[0011] As a preferred technical solution of the present invention, the film-forming agent is alcohol ester 12.

[0012] As a preferred technical solution of the present invention, the preparation method of the waterproof and stain-resistant coating is as follows: S9-1: Add water-based polyurethane emulsion and water-based acrylic emulsion into the material tank according to the formula ratio, and stir at a speed of 450-550r / min for 30-50 min; S9-2: Add filler, polydimethylsiloxane and dimethyl silicone oil into the material tank in sequence, increase the speed to 650-750 r / min, and stir for 1.5 h; S9-3: Add the film-promoting agent into a material tank, and stir at a speed of 450-550 r / min for 10-20 min to obtain the waterproof and stain-resistant coating.

[0013] A method for preparing a waterproof and stain-resistant composite woven fabric, the specific steps of the preparation method are as follows: coating a waterproof and stain-resistant coating on a woven layer at a coating line speed of 10-20 m / min, placing the coating in a 60-70°C vacuum drying oven for 1-2 h, and obtaining the waterproof and stain-resistant composite woven fabric.

[0014] Ammonium fluoride is added during the formation of titanium dioxide, and fluoride ions enter the titanium dioxide lattice during the preparation process to generate fluorine-doped titanium dioxide. Fluorine doping can effectively improve the light response efficiency of titanium dioxide, produce a sideband red shift effect, and play a role in regulating the crystal form during the crystallization of titanium dioxide. Fluorine-doped titanium dioxide can more effectively utilize sunlight and effectively degrade pollutants, making the surface of the woven fabric self-cleaning and stain-resistant. Fluorine doping changes the surface properties of titanium dioxide, making it hydrophobic and low in surface energy.

[0015] The introduction of cerium nitrate can promote the effective separation of electrons and holes by introducing impurity energy levels or changing the energy band structure of titanium dioxide, thereby improving the photoactivity of titanium dioxide and thus improving the self-cleaning property of woven fabrics. Cerium doping can also enhance the redox ability of titanium dioxide. Due to the variable valence characteristics of cerium, it can participate in the redox process in the catalytic reaction, thereby improving the activity of titanium dioxide.

[0016] The co-doping of fluorine and cerium can also optimize the separation efficiency of electrons and holes. The introduction of fluorine can change the surface properties of titanium dioxide, while the doping of cerium can promote the effective separation of electrons and holes. The synergistic effect of the two further reduces the recombination rate of electrons and holes. The co-doping of fluorine and cerium can also improve the stability and durability of titanium dioxide. Due to the doping of fluorine and cerium, the chemical stability and thermal stability of titanium dioxide are enhanced, so that the woven fabric can maintain high stain resistance and stability during long-term use.

[0017] Through intercalation treatment, the interlayer spacing of mica powder can be effectively changed, thereby improving its physical and chemical properties. Mica powder that has undergone intercalation treatment can more effectively play a filling and reinforcing role in the coating, effectively improving the mechanical strength, heat resistance, weather resistance and other comprehensive properties of the coating.

[0018] As a high-performance material, graphite carbon nitride has excellent mechanical strength, which can further enhance the performance of the filler and improve the hardness, wear resistance and corrosion resistance of the coating. At the same time, graphite carbon nitride has light response ability, which can further enhance the self-cleaning ability of the coating and effectively enhance its anti-fouling performance. The addition of toluene diphenyl phosphate can be used as a compatibilizer between the filler and the coating matrix, enhancing the interaction between the filler and the coating matrix, thereby improving the adhesion of the coating and effectively improving the stability and durability of the coating during long-term use.

[0019] Dimethyl silicone oil can reduce the viscosity of the coating, improve the fluidity of the coating, and make it easier to apply. At the same time, it can also improve the surface gloss of the coating, making the coating smoother and more beautiful. In addition, dimethyl silicone oil has the characteristics of water repellency and moisture resistance, which enables it to significantly improve the water resistance of the coating in the coating. When the coating contains dimethyl silicone oil, a dense waterproof layer will be formed on the surface of the coating, which can effectively prevent the penetration of water molecules, thereby protecting the woven layer from water erosion.

[0020] Oleic acid amide is added to polypropylene fiber. Oleic acid amide has good lubrication properties, which can reduce the friction and resistance of the fiber during processing, help reduce the wear and breakage of the fiber during the weaving process, and improve the production efficiency and quality of the woven fabric. Oleic acid amide has anti-fouling effect, which can reduce the adhesion and penetration of stains on the fiber surface. Oleic acid amide can reduce the adhesion between stains and fibers. Oleic acid amide can also promote the compatibility of polypropylene fiber and nylon fiber, which helps to improve the overall performance and structural stability of the woven fabric.

[0021] Beneficial effects of the present invention: (1) The present invention achieves co-doping of fluorine and cerium by introducing ammonium fluoride and cerium nitrate during the formation of titanium dioxide, significantly improving the light response efficiency and activity of titanium dioxide, and also giving the woven fabric surface hydrophobicity and low surface energy, thereby improving self-cleaning and stain resistance. In addition, the performance of the coating is further improved by adding intercalated mica powder and graphite phase carbon nitride. Toluene diphenyl phosphate is used as a compatibilizer to enhance the interaction between the filler and the coating matrix, thereby improving the adhesion and long-term stability of the coating. The introduction of dimethyl silicone oil further improves the water resistance of the woven fabric.

[0022] (2) By using polypropylene fiber and nylon fiber to form a woven layer and adding 5wt% oleic acid amide to the polypropylene fiber, the stain resistance of the woven fabric was significantly improved. The addition of oleic acid amide not only enhances the lubricity and wear resistance of the fiber, improves production efficiency and quality, but also reduces the adhesion of stains through its anti-fouling effect and enhances the hydrophobicity of the fiber surface, making the woven fabric have excellent self-cleaning and long-term stain resistance. DETAILED DESCRIPTION

[0023] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention are described in detail below in combination with embodiments.

[0024] Example 1 A waterproof and stain-resistant composite woven fabric, the composite woven fabric comprises a coating layer and a woven layer from top to bottom, wherein the coating layer is coated with a waterproof and stain-resistant coating, and a formula 1 of the waterproof and stain-resistant coating comprises the following components, in parts by weight: 50 parts of an aqueous polyurethane emulsion, 10 parts of an aqueous acrylic emulsion, 15 parts of a filler, 4 parts of polydimethylsiloxane, 4 parts of dimethyl silicone oil, 122 parts of an alcohol ester, Wherein, the preparation method of the filler is as follows: S1-1: Titanium tetraisopropoxide, ammonium fluoride and deionized water were mixed in a mass ratio of 1:0.15:19, 3 M nitric acid solution was added to adjust the pH to 2.5, and then 0.5 times the mass of ammonium fluoride of cerium nitrate was added, and the mixture was stirred at 70°C and 550 r / min for 3 h, washed with deionized water and dried in a 60°C vacuum drying oven for 12 h, and then transferred to a muffle furnace for calcination at a temperature of 550°C for 2.5 h. After cooling to room temperature, the mixture was placed in a ball mill for 2 h at a ball mill speed of 300 r / min to obtain powder A; S1-2: mica powder and an intercalant are mixed in a mass ratio of 1:20, wherein the intercalant is sulfuric acid, hydrogen peroxide and deionized water in a volume ratio of 1:1:2, ultrasonicated at 55 °C for 3 h, washed with deionized water, and dried in a vacuum drying oven at 60 °C for 8 h to obtain powder B; S1-3: Powder A, powder B and graphite phase carbon nitride are mixed in a mass ratio of 1:2:0.5, and the mixture is put into a ball mill for ball milling for 1.5 h at a ball milling speed of 200 r / min. Subsequently, 4 wt% of the total mass of powder A, powder B and graphite phase carbon nitride is added toluene diphenyl phosphate, and the ball milling is continued for 1.5 h while maintaining the speed to obtain the filler.

[0025] The braided layer is woven from polypropylene fibers and nylon fibers, wherein 5 wt % oleic acid amide is added to the polypropylene fibers.

[0026] The preparation method of the waterproof and anti-fouling coating is as follows: S9-1: Add water-based polyurethane emulsion and water-based acrylic emulsion into the material tank according to the ratio of formula 1, and stir at a speed of 500 r / min for 40 min; S9-2: Add filler, polydimethylsiloxane and dimethyl silicone oil into the material tank in sequence, increase the speed to 700r / min, and stir for 1.5 hours; S9-3: Add the alcohol ester 12 into a material tank and stir at a speed of 500 r / min for 15 min to obtain the waterproof and stain-resistant coating.

[0027] A method for preparing a waterproof and stain-resistant composite woven fabric, the specific steps of the preparation method are as follows: coating a waterproof and stain-resistant coating on a woven layer at a coating line speed of 10-20 m / min, placing the coating in a 60-70°C vacuum drying oven for 1-2 h, and obtaining the waterproof and stain-resistant composite woven fabric.

[0028] Example 2 A waterproof and stain-resistant composite woven fabric, the composite woven fabric comprises a coating layer and a woven layer from top to bottom, wherein the coating layer is coated with a waterproof and stain-resistant coating, and the formula 2 of the waterproof and stain-resistant coating comprises the following components, in parts by weight: 45 parts of water-based polyurethane emulsion, 5 parts of water-based acrylic emulsion, 10 parts of filler, 3 parts of polydimethylsiloxane, 3 parts of dimethyl silicone oil, 12 parts of alcohol ester, Wherein, the preparation method of the filler is as follows: S1-1: Titanium tetraisopropoxide, ammonium fluoride and deionized water were mixed in a mass ratio of 1:0.1:18, 3 M nitric acid solution was added to adjust the pH to 2, and then cerium nitrate with a mass of 0.5 times that of ammonium fluoride was added, and stirred at 60 °C at a speed of 500 r / min for 2 h, washed with deionized water and dried in a vacuum drying oven at 60 °C for 10 h, and then transferred to a muffle furnace for calcination at a temperature of 500 °C for 2 h. After cooling to room temperature, the mixture was placed in a ball mill for 1.5 h at a ball mill speed of 250 r / min to obtain powder A; S1-2: mica powder and an intercalant are mixed in a mass ratio of 1:19, wherein the intercalant is sulfuric acid, hydrogen peroxide and deionized water in a volume ratio of 1:1:2, ultrasonicated at 50 °C for 2 h, washed with deionized water, and dried in a vacuum drying oven at 60 °C for 6 h to obtain powder B; S1-3: Powder A, powder B and graphite phase carbon nitride are mixed in a mass ratio of 1:2:0.5, and the mixture is put into a ball mill for ball milling for 1 h at a ball milling speed of 150 r / min. Subsequently, 3 wt% of the total mass of powder A, powder B and graphite phase carbon nitride is added toluene diphenyl phosphate, and the ball milling is continued for 1.5 h while maintaining the speed to obtain the filler.

[0029] The braided layer is woven from polypropylene fibers and nylon fibers, wherein 5 wt % oleic acid amide is added to the polypropylene fibers.

[0030] The preparation method of the waterproof and anti-fouling coating is as follows: S9-1: Add water-based polyurethane emulsion and water-based acrylic emulsion into the material tank according to the ratio of formula 2, and stir at a speed of 450 r / min for 30-50 min; S9-2: Add filler, polydimethylsiloxane and dimethyl silicone oil into the material tank in sequence, increase the speed to 650r / min, and stir for 1.5 hours; S9-3: Add the alcohol ester 12 into a material tank and stir at a speed of 450 r / min for 10 min to obtain the waterproof and stain-resistant coating.

[0031] A method for preparing a waterproof and stain-resistant composite woven fabric, the specific steps of the preparation method are as follows: coating a waterproof and stain-resistant coating on a woven layer at a coating line speed of 10 m / min, placing the coating in a 60° C. vacuum drying oven for 1 h, and obtaining the waterproof and stain-resistant composite woven fabric.

[0032] Example 3 A waterproof and stain-resistant composite woven fabric, the composite woven fabric comprises a coating layer and a woven layer from top to bottom, wherein the coating layer is coated with a waterproof and stain-resistant coating, and the formula 3 of the waterproof and stain-resistant coating comprises the following components, in parts by weight: 55 parts of water-based polyurethane emulsion, 15 parts of water-based acrylic emulsion, 20 parts of filler, 5 parts of polydimethylsiloxane, 5 parts of dimethyl silicone oil, 123 parts of alcohol ester, Wherein, the preparation method of the filler is as follows: S1-1: Titanium tetraisopropoxide, ammonium fluoride and deionized water were mixed in a mass ratio of 1: 0.2:20, 3 M nitric acid solution was added to adjust the pH to 3, and then 0.5 times the mass of ammonium fluoride of cerium nitrate was added, and the mixture was stirred at 80°C and 600 r / min for 4 h, washed with deionized water and dried in a 60°C vacuum drying oven for 14 h, and then transferred to a muffle furnace for calcination at a temperature of 600°C for 3 h. After cooling to room temperature, the mixture was placed in a ball mill for 2.5 h at a ball milling speed of 350 r / min to obtain powder A; S1-2: mica powder and an intercalant are mixed in a mass ratio of 1:21, wherein the intercalant is sulfuric acid, hydrogen peroxide and deionized water in a volume ratio of 1:1:2, ultrasonically treated at 60°C for 4 h, washed with deionized water, and dried in a vacuum drying oven at 60°C for 10 h to obtain powder B; S1-3: Powder A, powder B and graphite phase carbon nitride are mixed in a mass ratio of 1:2:0.5, and the mixture is put into a ball mill for ball milling for 2 h at a ball milling speed of 250 r / min. Subsequently, 5 wt% of the total mass of powder A, powder B and graphite phase carbon nitride is added toluene diphenyl phosphate, and the ball milling is continued for 1.5 h while maintaining the speed to obtain the filler.

[0033] The braided layer is woven from polypropylene fibers and nylon fibers, wherein 5 wt % oleic acid amide is added to the polypropylene fibers.

[0034] The preparation method of the waterproof and anti-fouling coating is as follows: S9-1: Add water-based polyurethane emulsion and water-based acrylic emulsion into the material tank according to the ratio of formula 3, and stir at a speed of 550 r / min for 50 min; S9-2: Add filler, polydimethylsiloxane and dimethyl silicone oil into the material tank in sequence, increase the speed to 750r / min, and stir for 1.5 hours; S9-3: Add alcohol ester 12 into a material tank and stir at a speed of 550 r / min for 20 min to obtain the waterproof and stain-resistant coating.

[0035] A method for preparing a waterproof and stain-resistant composite woven fabric, the specific steps of the preparation method are as follows: coating a waterproof and stain-resistant coating on a woven layer at a coating line speed of 20 m / min, placing the coating in a 70°C vacuum drying oven for 2 h, and obtaining the waterproof and stain-resistant composite woven fabric.

[0036] Comparative Example 1 Ammonium fluoride was not added during the preparation of the filler, and the remaining steps were the same as those in Example 1.

[0037] Comparative Example 2 No cerium nitrate was added during the preparation of the filler, and the remaining steps were the same as those in Example 1.

[0038] Comparative Example 3 No graphite phase carbon nitride is added in the preparation of the filler, and the remaining steps are consistent with Example 1.

[0039] Comparative Example 4 No dimethyl silicone oil is added in the preparation of the waterproof and stain-resistant coating, and the remaining steps are consistent with Example 1.

[0040] The waterproof performance of the embodiments and comparative examples was tested according to AATCC 22-2017 “Water Repellency Test for Textiles by Spray Method” and tested again after washing 50 times.

[0041] The experimental data are summarized in the following table:

[0042] The stain resistance of the embodiments and comparative examples was tested in accordance with GB / T30159.1-2013 “Testing and evaluation of antifouling properties of textiles Part 1: Stain resistance”, and the stain resistance was tested again after washing 50 times.

[0043] The experimental data are summarized in the following table:

[0044] It can be seen from the data of the embodiments and comparative examples that the composite woven fabric prepared by the present invention has good waterproofness and stain resistance.

[0045] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A waterproof and stain-resistant composite woven fabric, characterized in that: The composite woven fabric comprises a coating layer and a woven layer from top to bottom, wherein the coating layer is coated with a waterproof and stain-resistant coating, and the formula of the waterproof and stain-resistant coating comprises the following components, in parts by weight, 45-55 parts of waterborne polyurethane emulsion, 5-15 parts of waterborne acrylic emulsion, 10-20 parts of filler, 3-5 parts of polydimethylsiloxane, 3-5 parts of dimethyl silicone oil, 1-3 parts of film promoter, Wherein, the preparation method of the filler is as follows: S1-1: Titanium tetraisopropoxide, ammonium fluoride and deionized water were mixed, 3 M nitric acid solution was added to adjust the pH to 2-3, and then cerium nitrate was added, stirred at 60-80°C at a speed of 500-600 r / min for 2-4 h, washed with deionized water and dried in a vacuum drying oven at 60°C for 10-14 h, then transferred to a muffle furnace for calcination, cooled to room temperature, and then placed in a ball mill for 1.5-2.5 h at a ball mill speed of 250-350 r / min to obtain powder A; S1-2: mica powder and intercalant were mixed in a mass ratio of 1:(19-21), ultrasonicated at 50-60°C for 2-4 h, washed with deionized water, and dried in a vacuum oven at 60°C for 6-10 h to obtain powder B; S1-3: Powder A, powder B and graphite phase carbon nitride are mixed in a mass ratio of 1:2:0.5, and the mixture is put into a ball mill for ball milling for 1 to 2 hours at a ball milling speed of 150 to 250 r / min. Subsequently, toluene diphenyl phosphate is added, and the speed is maintained while ball milling is continued for 1.5 hours to obtain the filler.

2. The waterproof and stain-resistant composite woven fabric according to claim 1, characterized in that: The braided layer is woven from polypropylene fibers and nylon fibers, wherein 5 wt % oleic acid amide is added to the polypropylene fibers.

3. The waterproof and stain-resistant composite woven fabric according to claim 1, characterized in that: In the S1-1, titanium tetraisopropoxide, ammonium fluoride and deionized water are mixed in a mass ratio of 1: (0.1-0.2): (18-20).

4. The waterproof and stain-resistant composite woven fabric according to claim 1, characterized in that: The amount of cerium nitrate added in S1-1 is 0.5 times the mass of ammonium fluoride.

5. The waterproof and stain-resistant composite woven fabric according to claim 1, characterized in that: In the S1-1, the calcination temperature is 500-600°C, and the calcination time is 2-3 h.

6. The waterproof and stain-resistant composite woven fabric according to claim 1, characterized in that: The intercalant in S1-2 is a mixture of sulfuric acid, hydrogen peroxide and deionized water in a volume ratio of 1:1:

2.

7. The waterproof and stain-resistant composite woven fabric according to claim 1, characterized in that: The amount of toluene diphenyl phosphate added in S1-3 is 3-5 wt% of the total mass of powder A, powder B and graphite phase carbon nitride.

8. The waterproof and stain-resistant composite woven fabric according to claim 1, characterized in that: The film-forming agent is alcohol ester 12.

9. The waterproof and stain-resistant composite woven fabric according to claim 1, characterized in that: The preparation method of the waterproof and anti-fouling coating is as follows: S9-1: Add water-based polyurethane emulsion and water-based acrylic emulsion into the material tank according to the formula ratio, and stir at a speed of 450-550 r / min for 30-50 min; S9-2: Add filler, polydimethylsiloxane and dimethyl silicone oil into the material tank in sequence, increase the speed to 650-750 r / min, and stir for 1.5 h; S9-3: Add the film-promoting agent into a material tank, and stir at a speed of 450-550 r / min for 10-20 min to obtain the waterproof and stain-resistant coating.

10. A process for preparing the waterproof and stain-resistant composite woven fabric according to any one of claims 1 to 9, characterized in that: The specific steps of the preparation process are as follows: coating the waterproof and stain-resistant coating on the woven layer at a coating line speed of 10-20 m / min, placing it in a vacuum drying oven at 60-70°C for 1-2 h, and obtaining the waterproof and stain-resistant composite woven fabric.

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