Wear-resistant easy-to-clean fabric, preparation method thereof and tool prepared by applying fabric

Abstract

The invention relates to the field of fabrics, in particular to a wear-resistant easy-to-clean fabric, a preparation method thereof and a tool prepared from the fabric. A preparation method of the wear-resistant easy-to-clean fabric comprises the following steps: preparing modified nano aluminum oxide; preparing an outer-layer fabric; preparing a chitosan-based antibacterial agent; preparing an inner layer fabric; and preparing the wear-resistant easy-to-clean fabric. The preparation method comprises the following steps: reacting acryloyl chloride with 1, 4-butanediamine to generate a difunctional cross-linking agent with acrylamide double bonds at two ends, then preparing a prepolymer emulsion from the difunctional cross-linking agent, polytetrahydrofuran glycol, 2, 2-dimethylolpropionic acid and the like, and reacting with an organic silicon emulsion under the initiation of ammonium persulfate to prepare a modified waterborne polyurethane emulsion. The surface of the nylon fabric is coated with the coating to form the wear-resistant and easy-to-clean coating, so that the washing resistance of the coating can be remarkably improved, the long-term wear-resistant and easy-to-clean properties of the outer-layer fabric are maintained, the risk that the coating is stripped from the surface of the fabric during friction is reduced, and the wear resistance of the outer-layer fabric is improved.

Description

Technical Field

[0001] This invention relates to the field of fabrics, specifically to a wear-resistant and easy-to-clean fabric, its preparation method, and tooling made using the fabric. Background Technology

[0002] Workwear, short for "industrial workwear," is functional clothing designed specifically for scenarios such as industrial production, engineering construction, outdoor work, and special industry operations. Its core positioning is to adapt to the needs of specific working environments, taking into account protection, practicality, and durability. It differs from casual wear or formal wear worn daily, emphasizing "functionality" rather than decoration.

[0003] Traditional workwear fabrics are mostly made of high-count, high-density cotton or polyester-cotton blends. While they offer some comfort, their abrasion resistance is limited, and their surfaces are easily stained with oil and dust, making them very difficult to clean. Frequent washing not only accelerates fabric wear, fading, and deformation but also rapidly diminishes their protective function. To improve the ease of cleaning, the industry commonly uses fluorinated compounds for finishing, forming a water- and oil-repellent film on the fiber surface to achieve stain resistance. However, the adhesion between these coatings and the fiber substrate is mostly physical, resulting in poor adhesion. After repeated washing or physical friction, the coating easily peels off, leading to a sharp drop in stain resistance.

[0004] Furthermore, work clothes worn close to the skin for extended periods are prone to bacterial growth due to sweat. Cotton fabrics, as a biomass conversion material, typically lack antibacterial properties. Existing technologies usually enhance their antibacterial properties through antibacterial finishing. However, common antibacterial finishing processes often employ simple impregnation, coating, or adsorption. Antibacterial agents (such as small-molecule quaternary ammonium salts, silver ions, plant extracts, etc.) adhere to the surface or pores of fabric fibers through van der Waals forces, hydrogen bonds, or electrostatic attraction. These forces are weak, and the mechanical scouring of water during washing and the emulsifying effect of detergents can disrupt this bond, causing the antibacterial agents to fall off with the water, resulting in poor wash resistance and antibacterial properties of the fabric.

[0005] Therefore, it is necessary to propose a long-lasting antibacterial, wear-resistant, and easy-to-clean fabric, its preparation method, and tooling made using this fabric. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a wear-resistant and easy-to-clean fabric, a preparation method thereof, and tooling made using the fabric.

[0007] This invention provides a wear-resistant and easy-to-clean fabric, comprising an inner layer fabric and an outer layer fabric; The outer fabric consists of nylon fabric and an easy-to-clean, wear-resistant layer mounted on the surface of the nylon fabric. The easy-to-clean, wear-resistant layer is made of modified waterborne polyurethane emulsion. By weight, the raw material composition of the modified waterborne polyurethane emulsion is: 75-80 parts polytetrahydrofuran glycol, 8-10 parts 2,2-dimethylolpropionic acid, 75-80 parts isophorone diisocyanate, 0.08-0.1 parts dibutyltin dilaurate, 10-12 parts hydroxyethyl methacrylate, 45-55 parts crosslinking agent aqueous solution, 10-12 parts silicone emulsion, 8-10 parts ammonium persulfate aqueous solution, 3-5 parts modified nano-alumina, and 50-60 parts ethyl acetate. The mass concentration of the crosslinking agent aqueous solution is 3-5%, and the mass concentration of the ammonium persulfate aqueous solution is 0.5-1%. The inner fabric is made of a blend of cotton and linen fibers as the base fabric, and then treated with an antibacterial treatment solution. By mass percentage, the antibacterial treatment solution includes: 4-6% citric acid, 2-3% chitosan-based antibacterial agent, 2-3% sodium hypophosphite, 1.5-2.5% triethanolamine and 0.1-0.3% fatty alcohol polyoxyethylene ether, with the balance being distilled water.

[0008] Furthermore, a method for preparing a wear-resistant and easy-to-clean fabric includes the following steps: S1: Preparation of modified nano-alumina Modified nano-alumina was obtained by surface modification with a silane coupling agent and then reacted with polyhexamethylene guanidine. S2: Preparation of outer fabric S2.1: Acryloyl chloride and 1,4-butanediamine were added to anhydrous acetonitrile at a ratio of (1.9-2.1) g: 1 g: (30-40) mL, stirred thoroughly, and then heated and stirred at 30-40℃ for 2-3 h. After filtration, washing and vacuum drying, the mixture was recrystallized in a methanol aqueous solution at -28℃, and then filtered and vacuum dried to obtain the crosslinking agent. S2.2: Add dodecylbenzenesulfonic acid and sodium dodecyl sulfonate to deionized water at a mass ratio of (3.6-3.7):1:(110-120), heat and stir at 70-80℃ for 30-40 min, then add vinyltriethoxysilane, octamethylcyclotetrasiloxane and methyltriethoxysilane, continue to keep warm for 3-4 h, cool down and neutralize to obtain organosilicon emulsion; S2.3: Polytetrahydrofurandiol and 2,2-dimethylolpropionic acid are added to ethyl acetate and heated and stirred at 75-85℃. Then, isophorone diisocyanate and dibutyltin dilaurate are added while stirring. After stirring and maintaining the temperature for 2.5-3.5 hours, hydroxyethyl methacrylate is added while stirring to end-cap the reaction. After cooling, triethylamine is added to neutralize the reaction. Then, an aqueous solution of the crosslinking agent is added under high-speed stirring to emulsify the mixture and obtain a prepolymer emulsion. S2.4: Add the organosilicon emulsion and ammonium persulfate aqueous solution to the above prepolymer emulsion, heat and stir at 60-70℃ for 2-3 hours, cool, add the modified nano alumina obtained in step S1.4, stir and mix thoroughly, and then remove ethyl acetate by rotary evaporation to obtain the modified waterborne polyurethane emulsion. S2.5: The modified waterborne polyurethane emulsion is uniformly coated on the surface of the nylon fabric. After drying and curing, an easy-to-clean and wear-resistant layer is formed to obtain the outer fabric. S3: Preparation of chitosan-based antibacterial agents After alkalizing chitosan, it is reacted with 2,3-epoxypropyltrimethylammonium chloride, and then reacted with cinnamaldehyde to obtain a chitosan-based antibacterial agent. S4: Prepare the inner layer fabric The base fabric is made by blending cotton and flax fibers, and then treated with an antibacterial treatment solution made from the above-mentioned chitosan-based antibacterial agent to obtain the inner fabric. S5: Preparation of wear-resistant and easy-to-clean fabrics The inner layer fabric is bonded to the outer layer fabric to obtain a wear-resistant and easy-to-clean fabric.

[0009] Furthermore, S1 specifically includes the following steps: S1.1: Add nano-alumina to deionized water at a ratio of 1g:(90-100)mL, then add sodium dodecylbenzenesulfonate, stir and disperse for 20-30min, then shear and disperse for 8-10min to obtain nano-alumina dispersion; S1.2: Add anhydrous ethanol to the above nano-alumina dispersion, stir and mix, then add silane coupling agent KH560, ultrasonically disperse for 10-20 min, stir and react at 50-60℃ for 1-2 h, cool, filter, wash and dry to obtain surface-modified nano-alumina; S1.3: Add the above surface-modified nano-alumina to deionized water at a ratio of 1g:(300-400)mL, and ultrasonically disperse for 10-20min to obtain a surface-modified nano-alumina dispersion. Then add polyhexamethylene guanidine to deionized water at a ratio of 1g:(40-50)mL, and stir thoroughly to dissolve to obtain a polyhexamethylene guanidine solution. S1.4: Add the above polyhexamethylene guanidine solution to the above surface-modified nano alumina dispersion at a volume ratio of 1:(3.8-4.2), stir and react for 46-48 hours, then filter, centrifuge, wash and dry to obtain modified nano alumina.

[0010] Furthermore, S3 specifically includes the following steps: S3.1: Add chitosan to 1% acetic acid solution at a ratio of 1g:(40-50)mL, stir thoroughly to dissolve, and then add 1mol / L sodium hydroxide solution while stirring to adjust the pH to 9-10 to obtain an alkalized chitosan solution; S3.2: Add an equal volume of isopropanol to the above alkalized chitosan solution, stir and mix, then add an aqueous solution of 2,3-epoxypropyltrimethylammonium chloride, heat and stir at 65-70℃ for 5-6 hours, cool, add 1 mol / L dilute acetic acid to adjust the pH to neutral, then pour into anhydrous ethanol for alcohol precipitation, filtration, washing and vacuum drying to obtain the intermediate; S3.3: Dissolve the above intermediate in deionized water at a ratio of 1g:(30-40)mL, stir thoroughly to dissolve, and obtain an intermediate solution. Then dissolve cinnamaldehyde in anhydrous ethanol at a ratio of 1g:(10-20)mL, stir thoroughly to dissolve, and obtain a cinnamaldehyde solution. S3.4: Add the above cinnamaldehyde solution to the above intermediate solution at a volume ratio of 1:(2.8-3.2), and add 1 mol / L dilute acetic acid to adjust the pH to 4-5. Heat at 60-70℃ and react in the dark for 3-4 hours. After cooling, pour into ethyl acetate, and then filter, wash and vacuum dry to obtain chitosan-based antibacterial agent.

[0011] Furthermore, S4 specifically includes the following steps: S4.1: Cotton fiber and flax fiber are blended at a mass ratio of (2-3):1 to obtain the base fabric; S4.2: Add citric acid to distilled water and stir to dissolve. Then add the chitosan-based antibacterial agent prepared in step S3.4 and stir to dissolve. Add triethanolamine, then add sodium hypophosphite and fatty alcohol polyoxyethylene ether and stir to mix thoroughly to obtain the antibacterial treatment solution. S4.3: The above-mentioned base fabric is placed in the above-mentioned antibacterial treatment solution and finished by a two-dip and two-roll process with a roll-off rate of 70-80%. After removal, it is pre-dried at 100-110℃ for 160-180s and then high-temperature set at 130-140℃ for 100-120s to obtain the inner layer fabric.

[0012] Furthermore, the amount of sodium dodecylbenzenesulfonate added is 1-2 wt% of the mass of nano-alumina.

[0013] Furthermore, the amount of anhydrous ethanol added is 1-3% of the volume of the nano-alumina dispersion, and the amount of silane coupling agent KH560 added is 5-6% of the volume of the nano-alumina dispersion.

[0014] Furthermore, the mass ratio of vinyltriethoxysilane, methyltriethoxysilane and octamethylcyclotetrasiloxane is 1:1:(10-12), and the mass ratio of vinyltriethoxysilane to sodium dodecyl sulfonate is (3.1-3.2):1.

[0015] Furthermore, the mass concentration of the aqueous solution of 2,3-epoxypropyltrimethylammonium chloride is 60%, and the mass ratio of 2,3-epoxypropyltrimethylammonium chloride to chitosan is (3.6-4):1.

[0016] Furthermore, the aforementioned wear-resistant and easy-to-clean fabrics are used in workwear.

[0017] The present invention has the following advantages: 1. In this invention, acryloyl chloride is reacted with 1,4-butanediamine to generate a bifunctional crosslinking agent with acrylamide double bonds at both ends. This agent is then reacted with polytetrahydrofurandiol and 2,2-dimethylolpropionic acid to form a prepolymer emulsion. This prepolymer emulsion is then reacted with an organosilicon emulsion under the initiation of ammonium persulfate to form a modified waterborne polyurethane emulsion. This modified emulsion is then coated onto the surface of nylon fabric to form a wear-resistant and easy-to-clean coating. After obtaining the outer fabric, on the one hand, the crosslinking agent undergoes free radical copolymerization with the polyurethane prepolymer and organosilicon emulsion through the acrylamide double bonds at both ends, forming a three-dimensional network structure. Strong covalent bridges are formed between the molecular chains, connecting the polyurethane and organosilicon... The components are locked together, making it difficult for water molecules to penetrate and reducing the swelling rate of the coating. This significantly improves the coating's washability and maintains the long-term abrasion resistance and easy cleaning of the outer fabric. On the other hand, the formed three-dimensional cross-linked network can evenly disperse the stress generated by friction, avoiding local stress concentration that could lead to coating cracking. At the same time, the methylene segments in the cross-linking agent provide flexibility to the cross-linked network, making the coating less prone to brittle fracture during friction deformation. The amide groups can form hydrogen bonds with the amino and hydroxyl groups on the surface of the nylon fabric. Meanwhile, the cross-linked network extends into the gaps between the fabric fibers, forming an "anchor effect" that reduces the risk of the coating peeling off from the fabric surface during friction, thereby improving the abrasion resistance of the outer fabric.

[0018] 2. In this invention, by first modifying the surface of nano-alumina with silane coupling agent KH560, and then reacting it with polyhexamethylene guanidine, modified nano-alumina is obtained. This modified nano-alumina can form a three-dimensional barrier, preventing nano-alumina particles from approaching each other, thereby improving the dispersibility of nano-alumina in modified waterborne polyurethane emulsion and thus improving the wear resistance of the outer fabric. In addition, after adding modified nano-alumina to modified waterborne polyurethane emulsion and forming a wear-resistant and easy-to-clean coating on the surface of the outer fabric, polyhexamethylene guanidine can destroy the permeability of bacterial cell membranes, causing bacterial contents to leak and die, thereby giving the outer fabric a certain antibacterial property. Furthermore, polyhexamethylene guanidine is firmly bonded to the surface of nano-alumina through chemical bonds, which can improve the problem of migration and loss caused by direct addition, thus giving the outer fabric a long-lasting antibacterial effect.

[0019] 3. In this invention, after chitosan is alkalized, 2,3-epoxypropyltrimethylammonium chloride is added for reaction, introducing cationic groups. This can disrupt bacterial cell membranes through electrostatic interaction. Then, it reacts with the natural antibacterial agent cinnamaldehyde to form a synergistic antibacterial system, thereby effectively improving the antibacterial properties of chitosan. Then, the chitosan-based antibacterial agent is mixed with citric acid and sodium hypophosphite to prepare an antibacterial treatment solution. When treating cotton and linen blended base fabrics used as biomass conversion materials, citric acid, as a crosslinking agent, can form ester bonds with the hydroxyl groups of the base fabric and the amino groups of the chitosan-based antibacterial agent, firmly "anchoring" the chitosan-based antibacterial agent to the surface of the base fabric fibers, improving the washability and antibacterial properties of the inner layer fabric. Sodium hypophosphite can synergistically work with citric acid to accelerate the crosslinking of the chitosan-based antibacterial agent with the base fabric fibers, enhancing the crosslinking effect, and further improving the washability and antibacterial properties of the inner layer fabric. Attached Figure Description

[0020] Figure 1 This is a flowchart illustrating the preparation method of the wear-resistant and easy-to-clean fabric used in an embodiment of the present invention. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this invention.

[0022] Example 1: A method for preparing a wear-resistant and easy-to-clean fabric, such as... Figure 1 As shown, it includes the following steps: S1: Preparation of modified nano-alumina S1.1: Add nano-alumina to deionized water at a ratio of 1g:90mL, then add sodium dodecylbenzenesulfonate, stir and disperse for 20min, then shear and disperse for 8min to obtain a nano-alumina dispersion, wherein the amount of sodium dodecylbenzenesulfonate added is 1wt% of the mass of nano-alumina; S1.2: Add anhydrous ethanol to the above nano-alumina dispersion, stir and mix, then add silane coupling agent KH560, ultrasonically disperse for 10 min, and stir and react at 50℃ for 1 h. After cooling, filter, wash and dry to obtain surface-modified nano-alumina. The amount of anhydrous ethanol added is 1% of the volume of the nano-alumina dispersion, and the amount of silane coupling agent KH560 added is 5% of the volume of the nano-alumina dispersion. S1.3: Add the above surface-modified nano-alumina to deionized water at a ratio of 1g:300mL, and ultrasonically disperse for 10min to obtain a surface-modified nano-alumina dispersion. Then add polyhexamethylene guanidine to deionized water at a ratio of 1g:40mL, and stir thoroughly to dissolve to obtain a polyhexamethylene guanidine solution. S1.4: The above polyhexamethylene guanidine solution was added to the above surface-modified nano alumina dispersion at a volume ratio of 1:3.8, and the mixture was stirred and reacted for 46 hours. After filtration, centrifugation, washing and drying, the modified nano alumina was obtained. S2: Preparation of outer fabric S2.1: Acryloyl chloride and 1,4-butanediamine were added to anhydrous acetonitrile at a ratio of 1.9g:1g:30mL, stirred thoroughly, and then heated and stirred at 30℃ for 2h. After filtration, washing and vacuum drying, the mixture was recrystallized in a methanol aqueous solution at -28℃, and then filtered and vacuum dried to obtain the crosslinking agent. S2.2: Dodecylbenzenesulfonic acid and sodium dodecyl sulfonate were added to deionized water at a mass ratio of 3.6:1:110. The mixture was heated and stirred at 70°C for 30 min. Then, vinyltriethoxysilane, octamethylcyclotetrasiloxane, and methyltriethoxysilane were added, and the mixture was kept at this temperature for another 3 h. After cooling and neutralization, an organosilicon emulsion was obtained. The mass ratio of vinyltriethoxysilane, methyltriethoxysilane, and octamethylcyclotetrasiloxane was 1:1:10, and the mass ratio of vinyltriethoxysilane to sodium dodecyl sulfonate was 3.1:1. S2.3: Polytetrahydrofurandiol and 2,2-dimethylolpropionic acid were added to ethyl acetate and heated and stirred at 75°C. Then, isophorone diisocyanate and dibutyltin dilaurate were added while stirring. After stirring and maintaining the temperature for 2.5 hours, hydroxyethyl methacrylate was added while stirring to end-cap the reaction. After cooling, triethylamine was added to neutralize the reaction. Then, an aqueous solution of the crosslinking agent was added under high-speed stirring to emulsify the mixture and obtain a prepolymer emulsion. S2.4: The silicone emulsion and ammonium persulfate aqueous solution are added to the above prepolymer emulsion, heated and stirred at 60°C for 2 hours, cooled, and then the modified nano-alumina obtained in step S1.4 is added. The mixture is stirred thoroughly and then the ethyl acetate is removed by rotary evaporation to obtain the modified waterborne polyurethane emulsion. The raw material composition of the modified waterborne polyurethane emulsion, by mass, is: 75 parts polytetrahydrofuran diol, 8 parts 2,2-dimethylolpropionic acid, 75 parts isophorone diisocyanate, 0.08 parts dibutyltin dilaurate, 10 parts hydroxyethyl methacrylate, 45 parts crosslinking agent aqueous solution, 10 parts silicone emulsion, 8 parts ammonium persulfate aqueous solution, 3 parts modified nano-alumina, and 50 parts ethyl acetate. The mass concentration of the crosslinking agent aqueous solution is 3%, and the mass concentration of the ammonium persulfate aqueous solution is 0.5%. S2.5: The modified waterborne polyurethane emulsion is uniformly coated on the surface of the nylon fabric. After drying and curing, an easy-to-clean and wear-resistant layer is formed to obtain the outer fabric. S3: Preparation of chitosan-based antibacterial agents S3.1: Add chitosan to 1% acetic acid solution at a ratio of 1g:40mL, stir thoroughly to dissolve, and then add 1mol / L sodium hydroxide solution while stirring to adjust the pH to 9 to obtain an alkalized chitosan solution; S3.2: Add an equal volume of isopropanol to the above alkalized chitosan solution, stir and mix, then add an aqueous solution of 2,3-epoxypropyltrimethylammonium chloride, heat and stir at 65°C for 5 hours, cool, add 1 mol / L dilute acetic acid to adjust the pH to neutral, then pour into anhydrous ethanol for alcohol precipitation, filtration, washing and vacuum drying to obtain an intermediate, wherein the mass concentration of the aqueous solution of 2,3-epoxypropyltrimethylammonium chloride is 60%, and the mass ratio of 2,3-epoxypropyltrimethylammonium chloride to chitosan is 3.6:1; S3.3: Dissolve the above intermediate in deionized water at a ratio of 1g:30mL, stir thoroughly to dissolve, and obtain an intermediate solution. Then dissolve cinnamaldehyde in anhydrous ethanol at a ratio of 1g:10mL, stir thoroughly to dissolve, and obtain a cinnamaldehyde solution. S3.4: Add the above cinnamaldehyde solution to the above intermediate solution at a volume ratio of 1:2.8, and add 1 mol / L dilute acetic acid to adjust the pH to 4. Heat at 60°C and react in the dark for 3 hours. After cooling, pour into ethyl acetate, and then filter, wash and vacuum dry to obtain chitosan-based antibacterial agent. S4: Prepare the inner layer fabric S4.1: Cotton fiber and flax fiber are blended at a mass ratio of 2:1 to obtain the base fabric; S4.2: Add citric acid to distilled water and stir thoroughly to dissolve. Then add the chitosan-based antibacterial agent prepared in step S3.4 and stir to dissolve. Add triethanolamine, then add sodium hypophosphite and fatty alcohol polyoxyethylene ether and stir thoroughly to obtain an antibacterial treatment solution. The antibacterial treatment solution comprises, by mass percentage: 4% citric acid, 2% chitosan-based antibacterial agent, 2% sodium hypophosphite, 1.5% triethanolamine and 0.1% fatty alcohol polyoxyethylene ether, with the remainder being distilled water. S4.3: The above base fabric is placed in the above antibacterial treatment solution and finished by a two-dip and two-roll process with a roll-off rate of 70%. After being taken out, it is pre-dried at 100°C for 160s and then set at 130°C for 100s to obtain the inner layer fabric. S5: Preparation of wear-resistant and easy-to-clean fabrics The inner layer fabric is bonded to the outer layer fabric to obtain a wear-resistant and easy-to-clean fabric.

[0023] Example 2: A method for preparing a wear-resistant and easy-to-clean fabric, such as... Figure 1 As shown, it includes the following steps: S1: Preparation of modified nano-alumina S1.1: Add nano-alumina to deionized water at a ratio of 1g:95mL, then add sodium dodecylbenzenesulfonate, stir and disperse for 25min, then shear and disperse for 9min to obtain a nano-alumina dispersion, wherein the amount of sodium dodecylbenzenesulfonate added is 1.5wt% of the mass of nano-alumina; S1.2: Add anhydrous ethanol to the above nano-alumina dispersion, stir and mix, then add silane coupling agent KH560, ultrasonically disperse for 15 min, and stir and react at 55℃ for 1.5 h. After cooling, filter, wash and dry to obtain surface-modified nano-alumina. The amount of anhydrous ethanol added is 2% of the volume of the nano-alumina dispersion, and the amount of silane coupling agent KH560 added is 5.5% of the volume of the nano-alumina dispersion. S1.3: Add the above surface-modified nano-alumina to deionized water at a ratio of 1g:350mL, and ultrasonically disperse for 15min to obtain a surface-modified nano-alumina dispersion. Then add polyhexamethylene guanidine to deionized water at a ratio of 1g:45mL, and stir thoroughly to dissolve to obtain a polyhexamethylene guanidine solution. S1.4: The above polyhexamethylene guanidine solution was added to the above surface-modified nano alumina dispersion at a volume ratio of 1:4. The mixture was stirred and reacted for 47 hours. After filtration, centrifugation, washing and drying, the modified nano alumina was obtained. S2: Preparation of outer fabric S2.1: Acryloyl chloride and 1,4-butanediamine were added to anhydrous acetonitrile at a ratio of 2g:1g:35mL, stirred thoroughly, and then heated and stirred at 35℃ for 2.5h. After filtration, washing and vacuum drying, the mixture was recrystallized in a methanol aqueous solution at -28℃, and then filtered and vacuum dried to obtain the crosslinking agent. S2.2: Dodecylbenzenesulfonic acid and sodium dodecyl sulfonate were added to deionized water at a mass ratio of 3.65:1:115. The mixture was heated and stirred at 75°C for 35 min. Then, vinyltriethoxysilane, octamethylcyclotetrasiloxane, and methyltriethoxysilane were added, and the mixture was kept at this temperature for 3.5 h. After cooling and neutralization, an organosilicon emulsion was obtained. The mass ratio of vinyltriethoxysilane, methyltriethoxysilane, and octamethylcyclotetrasiloxane was 1:1:11, and the mass ratio of vinyltriethoxysilane to sodium dodecyl sulfonate was 3.15:1. S2.3: Polytetrahydrofurandiol and 2,2-dimethylolpropionic acid were added to ethyl acetate and heated and stirred at 80°C. Then, isophorone diisocyanate and dibutyltin dilaurate were added while stirring. After stirring and maintaining the temperature for 3 hours, hydroxyethyl methacrylate was added while stirring to end-cap the reaction. After cooling, triethylamine was added to neutralize the reaction. Then, an aqueous solution of the crosslinking agent was added under high-speed stirring to emulsify the mixture and obtain a prepolymer emulsion. S2.4: The silicone emulsion and ammonium persulfate aqueous solution are added to the above prepolymer emulsion, heated and stirred at 65°C for 2.5 h, cooled, and then the modified nano-alumina obtained in step S1.4 is added. The mixture is stirred thoroughly and then the ethyl acetate is removed by rotary evaporation to obtain the modified waterborne polyurethane emulsion. The raw material composition of the modified waterborne polyurethane emulsion, by mass, is: 78 parts polytetrahydrofuran diol, 9 parts 2,2-dimethylolpropionic acid, 78 parts isophorone diisocyanate, 0.09 parts dibutyltin dilaurate, 11 parts hydroxyethyl methacrylate, 50 parts crosslinking agent aqueous solution, 11 parts silicone emulsion, 9 parts ammonium persulfate aqueous solution, 4 parts modified nano-alumina, and 55 parts ethyl acetate. The mass concentration of the crosslinking agent aqueous solution is 4%, and the mass concentration of the ammonium persulfate aqueous solution is 0.8%. S2.5: The modified waterborne polyurethane emulsion is uniformly coated on the surface of the nylon fabric. After drying and curing, an easy-to-clean and wear-resistant layer is formed to obtain the outer fabric. S3: Preparation of chitosan-based antibacterial agents S3.1: Add chitosan to 1% acetic acid solution at a ratio of 1g:45mL, stir thoroughly to dissolve, and then add 1mol / L sodium hydroxide solution while stirring to adjust the pH to 9.5 to obtain an alkalized chitosan solution; S3.2: Add an equal volume of isopropanol to the above alkalized chitosan solution, stir and mix, then add an aqueous solution of 2,3-epoxypropyltrimethylammonium chloride, heat and stir at 68°C for 5.5 h, cool, add 1 mol / L dilute acetic acid to adjust the pH to neutral, then pour into anhydrous ethanol for alcohol precipitation, filtration, washing and vacuum drying to obtain an intermediate, wherein the mass concentration of the aqueous solution of 2,3-epoxypropyltrimethylammonium chloride is 60%, and the mass ratio of 2,3-epoxypropyltrimethylammonium chloride to chitosan is 3.8:1; S3.3: Dissolve the above intermediate in deionized water at a ratio of 1g:35mL, stir thoroughly to dissolve, and obtain an intermediate solution. Then dissolve cinnamaldehyde in anhydrous ethanol at a ratio of 1g:15mL, stir thoroughly to dissolve, and obtain a cinnamaldehyde solution. S3.4: Add the above cinnamaldehyde solution to the above intermediate solution at a volume ratio of 1:3, and add 1 mol / L dilute acetic acid to adjust the pH to 4.5. Heat at 65°C and react in the dark for 3.5 h. After cooling, pour into ethyl acetate, and then filter, wash and vacuum dry to obtain chitosan-based antibacterial agent. S4: Prepare the inner layer fabric S4.1: Cotton fiber and flax fiber are blended at a mass ratio of 2.5:1 to obtain the base fabric; S4.2: Add citric acid to distilled water and stir thoroughly to dissolve. Then add the chitosan-based antibacterial agent prepared in step S3.4 and stir to dissolve. Add triethanolamine, then add sodium hypophosphite and fatty alcohol polyoxyethylene ether and stir thoroughly to obtain an antibacterial treatment solution. The antibacterial treatment solution comprises, by mass percentage: 5% citric acid, 2.5% chitosan-based antibacterial agent, 2.5% sodium hypophosphite, 2% triethanolamine and 0.2% fatty alcohol polyoxyethylene ether, with the remainder being distilled water. S4.3: The above base fabric is placed in the above antibacterial treatment solution and finished by a two-dip and two-roll process with a roll-off rate of 75%. After being taken out, it is pre-dried at 105℃ for 170s and then high-temperature set at 135℃ for 110s to obtain the inner layer fabric. S5: Preparation of wear-resistant and easy-to-clean fabrics The inner layer fabric is bonded to the outer layer fabric to obtain a wear-resistant and easy-to-clean fabric.

[0024] Example 3: A method for preparing a wear-resistant and easy-to-clean fabric, such as... Figure 1 As shown, it includes the following steps: S1: Preparation of modified nano-alumina S1.1: Add nano-alumina to deionized water at a ratio of 1g:100mL, then add sodium dodecylbenzenesulfonate, stir and disperse for 30min, then shear and disperse for 10min to obtain a nano-alumina dispersion, wherein the amount of sodium dodecylbenzenesulfonate added is 2wt% of the mass of nano-alumina; S1.2: Add anhydrous ethanol to the above nano-alumina dispersion, stir and mix, then add silane coupling agent KH560, ultrasonically disperse for 20 min, and stir and react at 60℃ for 2 h. After cooling, filter, wash and dry to obtain surface-modified nano-alumina. The amount of anhydrous ethanol added is 3% of the volume of the nano-alumina dispersion, and the amount of silane coupling agent KH560 added is 6% of the volume of the nano-alumina dispersion. S1.3: Add the above surface-modified nano-alumina to deionized water at a ratio of 1g:400mL, and ultrasonically disperse for 20min to obtain a surface-modified nano-alumina dispersion. Then add polyhexamethylene guanidine to deionized water at a ratio of 1g:50mL, and stir thoroughly to dissolve to obtain a polyhexamethylene guanidine solution. S1.4: The above polyhexamethylene guanidine solution was added to the above surface-modified nano alumina dispersion at a volume ratio of 1:4.2, and the mixture was stirred and reacted for 48 hours. After filtration, centrifugation, washing and drying, the modified nano alumina was obtained. S2: Preparation of outer fabric S2.1: Acryloyl chloride and 1,4-butanediamine were added to anhydrous acetonitrile at a ratio of 2.1g:1g:40mL, stirred thoroughly, and then heated and stirred at 40℃ for 3h. After filtration, washing and vacuum drying, the mixture was recrystallized in a methanol aqueous solution at -28℃, and then filtered and vacuum dried to obtain the crosslinking agent. S2.2: Dodecylbenzenesulfonic acid and sodium dodecyl sulfonate were added to deionized water at a mass ratio of 3.7:1:120. The mixture was heated and stirred at 80°C for 40 min. Then, vinyltriethoxysilane, octamethylcyclotetrasiloxane, and methyltriethoxysilane were added, and the mixture was kept at this temperature for another 4 h. After cooling and neutralization, an organosilicon emulsion was obtained. The mass ratio of vinyltriethoxysilane, methyltriethoxysilane, and octamethylcyclotetrasiloxane was 1:1:12, and the mass ratio of vinyltriethoxysilane to sodium dodecyl sulfonate was 3.2:1. S2.3: Polytetrahydrofurandiol and 2,2-dimethylolpropionic acid were added to ethyl acetate and heated and stirred at 85°C. Then, isophorone diisocyanate and dibutyltin dilaurate were added while stirring. After stirring and maintaining the temperature for 3.5 hours, hydroxyethyl methacrylate was added while stirring to end-cap the reaction. After cooling, triethylamine was added to neutralize the reaction. Then, an aqueous solution of the crosslinking agent was added under high-speed stirring to emulsify the mixture and obtain a prepolymer emulsion. S2.4: Add the silicone emulsion and ammonium persulfate aqueous solution to the above prepolymer emulsion, heat and stir at 70°C for 2-3 hours, cool, add the modified nano-alumina obtained in step S1.4, stir and mix thoroughly, and then remove ethyl acetate by rotary evaporation to obtain the modified waterborne polyurethane emulsion. The raw material composition of the modified waterborne polyurethane emulsion, by mass, is: 80 parts polytetrahydrofuran glycol, 10 parts 2,2-dimethylolpropionic acid, 80 parts isophorone diisocyanate, 0.1 parts dibutyltin dilaurate, 12 parts hydroxyethyl methacrylate, 55 parts crosslinking agent aqueous solution, 12 parts silicone emulsion, 10 parts ammonium persulfate aqueous solution, 5 parts modified nano-alumina and 60 parts ethyl acetate, wherein the mass concentration of the crosslinking agent aqueous solution is 5% and the mass concentration of the ammonium persulfate aqueous solution is 1%. S2.5: The modified waterborne polyurethane emulsion is uniformly coated on the surface of the nylon fabric. After drying and curing, an easy-to-clean and wear-resistant layer is formed to obtain the outer fabric. S3: Preparation of chitosan-based antibacterial agents S3.1: Add chitosan to 1% acetic acid solution at a ratio of 1g:50mL, stir thoroughly to dissolve, and then add 1mol / L sodium hydroxide solution while stirring to adjust the pH to 10 to obtain an alkalized chitosan solution; S3.2: Add an equal volume of isopropanol to the above alkalized chitosan solution, stir and mix, then add an aqueous solution of 2,3-epoxypropyltrimethylammonium chloride, heat and stir at 70°C for 6 hours, cool, add 1 mol / L dilute acetic acid to adjust the pH to neutral, then pour into anhydrous ethanol for alcohol precipitation, filtration, washing and vacuum drying to obtain an intermediate, wherein the mass concentration of the aqueous solution of 2,3-epoxypropyltrimethylammonium chloride is 60%, and the mass ratio of 2,3-epoxypropyltrimethylammonium chloride to chitosan is 4:1; S3.3: Dissolve the above intermediate in deionized water at a ratio of 1g:40mL, stir thoroughly to dissolve, and obtain an intermediate solution. Then dissolve cinnamaldehyde in anhydrous ethanol at a ratio of 1g:20mL, stir thoroughly to dissolve, and obtain a cinnamaldehyde solution. S3.4: Add the above cinnamaldehyde solution to the above intermediate solution at a volume ratio of 1:3.2, and add 1 mol / L dilute acetic acid to adjust the pH to 5. Heat at 70°C and react in the dark for 4 hours. After cooling, pour into ethyl acetate, and then filter, wash and vacuum dry to obtain chitosan-based antibacterial agent. S4: Prepare the inner layer fabric S4.1: Cotton fiber and flax fiber are blended at a mass ratio of 3:1 to obtain the base fabric; S4.2: Add citric acid to distilled water and stir thoroughly to dissolve. Then add the chitosan-based antibacterial agent prepared in step S3.4 and stir to dissolve. Add triethanolamine, then add sodium hypophosphite and fatty alcohol polyoxyethylene ether and stir thoroughly to obtain an antibacterial treatment solution. The antibacterial treatment solution comprises, by mass percentage: 6% citric acid, 3% chitosan-based antibacterial agent, 3% sodium hypophosphite, 2.5% triethanolamine and 0.3% fatty alcohol polyoxyethylene ether, with the remainder being distilled water. S4.3: The above base fabric is placed in the above antibacterial treatment solution and finished by a two-dip and two-roll process with a roll-off rate of 80%. After being taken out, it is pre-dried at 110°C for 180s and then high-temperature set at 140°C for 120s to obtain the inner layer fabric. S5: Preparation of wear-resistant and easy-to-clean fabrics The inner layer fabric is bonded to the outer layer fabric to obtain a wear-resistant and easy-to-clean fabric.

[0025] Comparative Example 1 differs from Example 1 in that the crosslinking agent in step S2.3 is removed, and water is added directly under high-speed stirring for emulsification.

[0026] Comparative Example 2 differs from Example 1 in that the modified nano-alumina in step S2.4 is replaced with an equal amount of nano-alumina.

[0027] Comparative Example 3 differs from Example 1 in that the chitosan-based antibacterial agent in step S4.2 is replaced with an equal amount of chitosan.

[0028] Comparative Example 4 differs from Example 1 in that sodium hypophosphite in step S4.2 is replaced with an equal amount of citric acid.

[0029] Comparative Example 5 differs from Example 1 in that the citric acid in step S4.2 is replaced with an equal amount of sodium hypophosphite.

[0030] Test example: Test 1: The initial water contact angle and the water contact angle after 50 washes of the abrasion-resistant and easy-to-clean outer fabrics prepared in Examples 1-3 and Comparative Example 1 were tested respectively. The contact time was 30s, and the test was conducted five times at different positions. The average value was taken. The results are shown in Table 1.

[0031] Table 1: Test results of water contact angle of outer fabric Initial water contact angle (°) Water contact angle (°) after 50 washes Example 1 136.7 128.3 Example 2 137.2 128.6 Example 3 137.5 129.2 Comparative Example 1 125.2 76.8 Test 2: The outer fabrics prepared by Examples 1-3, Comparative Examples 1 and 2 were rubbed back and forth 60 times using a color fastness tester, and the wear was observed. The results are shown in Table 2.

[0032] Table 2: Test Results of Outer Fabric Wear Wear and tear Example 1 The surface is free from wear and tear. Example 2 The surface is free from wear and tear. Example 3 The surface is free from wear and tear. Comparative Example 1 The surface is worn and has minor abrasions. Comparative Example 2 The surface is worn but not broken. As shown in Tables 1 and 2 above, without the addition of a crosslinking agent, the water contact angle of the outer fabric prepared in Comparative Example 1 after 50 washes was significantly reduced, and the hydrophobic properties decreased. This indicates that by reacting acryloyl chloride with 1,4-butanediamine to generate a bifunctional crosslinking agent with acrylamide double bonds at both ends, and then preparing a prepolymer emulsion with polytetrahydrofuran diol and 2,2-dimethylolpropionic acid, and reacting it with an organosilicon emulsion under the initiation of ammonium persulfate to prepare a modified waterborne polyurethane emulsion, which is then coated on the surface of nylon fabric to form a wear-resistant and easy-to-clean coating, the outer fabric obtained can significantly improve the wash resistance of the coating and maintain the long-term wear resistance and easy-to-clean properties of the outer fabric. Furthermore, after 60 rubs, the outer fabric prepared in Comparative Example 1 showed wear and a small amount of tearing on the surface of the outer fabric. This shows that the crosslinking effect of the crosslinking agent can reduce the risk of the coating peeling off from the fabric surface during friction, thereby improving the wear resistance of the outer fabric.

[0033] Furthermore, in Comparative Example 2, without modification of the nano-alumina, the outer fabric obtained after 60 cycles of friction showed wear but was not worn through. This demonstrates that by first modifying the surface of the nano-alumina with the silane coupling agent KH560 and then reacting it with polyhexamethylene guanidine, a modified nano-alumina can be obtained, forming a three-dimensional barrier that prevents the nano-alumina particles from approaching each other. This improves the dispersibility of the nano-alumina in the modified waterborne polyurethane emulsion, thereby enhancing the wear resistance of the outer fabric.

[0034] Test 3: Using Staphylococcus aureus as the test strain, the initial antibacterial rate and antibacterial rate after 50 washes of the outer fabrics prepared in Examples 1-3 and Comparative Example 2 were tested. The results are shown in Table 3.

[0035] Table 3: Antibacterial rate test results of the outer fabric Initial antibacterial rate (%) Antibacterial rate after 50 washes (%) Example 1 95.63 93.26 Example 2 96.05 93.45 Example 3 96.21 93.73 Comparative Example 2 15.32 3.84 As shown in Table 3 above, the antibacterial rate of the outer fabric obtained in Comparative Example 2 without modification of the nano-alumina using polyhexamethylene guanidine is much lower than that in Example 1. This indicates that by adding modified nano-alumina to the modified waterborne polyurethane emulsion and forming a wear-resistant and easy-to-clean coating on the surface of the outer fabric, polyhexamethylene guanidine can disrupt the permeability of bacterial cell membranes, causing the bacterial contents to leak and die, thereby endowing the outer fabric with a certain degree of antibacterial properties. In addition, the antibacterial rate of the outer fabrics obtained in Examples 1-3 did not decrease significantly after 50 washes. This shows that polyhexamethylene guanidine is firmly bonded to the surface of nano-alumina through chemical bonds, which can improve the problem of migration and loss caused by direct addition, thus giving the outer fabric a long-lasting antibacterial effect.

[0036] Test 4: Using Staphylococcus aureus as the test strain, the initial antibacterial rate and antibacterial rate after 50 washes of the inner layer fabrics prepared in Examples 1-3 and Comparative Examples 3-5 were tested. The results are shown in Table 4. Table 4: Antibacterial rate test results of inner layer fabric Initial antibacterial rate (%) Antibacterial rate after 50 washes (%) Example 1 99.95 95.38 Example 2 99.99 95.86 Example 3 99.99 96.23 Comparative Example 3 90.79 85.65 Comparative Example 4 98.82 86.59 Comparative Example 5 96.35 65.80 As shown in Table 4, in Comparative Example 3, after replacing the chitosan-based antibacterial agent with chitosan, the initial antibacterial rate of the inner layer fabric was significantly lower than that in Example 1. This indicates that alkalizing chitosan, adding 2,3-epoxypropyltrimethylammonium chloride to introduce cationic groups, and then reacting with the natural antibacterial agent cinnamaldehyde can effectively improve the antibacterial properties of chitosan. Furthermore, in Comparative Example 4, when only citric acid was added to the antibacterial treatment solution, the antibacterial rate of the inner layer fabric after 50 washes was approximately 86.59%, while in Comparative Example 5, when only sodium hypophosphite was added to the antibacterial treatment solution, the antibacterial rate of the inner layer fabric after 50 washes was only approximately 65.80%. This is... Because citric acid is the core of cross-linking, its absence affects the cross-linking reaction between the chitosan-based antibacterial agent and the base fabric, causing the anchoring effect to fail. This results in a significant reduction in the antibacterial performance of the inner layer fabric after multiple washes. Furthermore, the antibacterial rates of the inner layer fabrics prepared in Comparative Examples 4 and 5 were significantly lower than those in Example 1 after 50 washes. This demonstrates that when the chitosan-based antibacterial agent is mixed with citric acid and sodium hypophosphite to form an antibacterial treatment solution, sodium hypophosphite can synergistically work with citric acid to accelerate the cross-linking of the chitosan-based antibacterial agent with the base fabric fibers, thereby enhancing the cross-linking effect and further improving the wash resistance and antibacterial properties of the inner layer fabric.

[0037] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims. Parts not described in detail in this specification are prior art known to those skilled in the art.

Claims

1. A wear-resistant and easy-to-clean fabric, characterized in that, Including inner and outer fabrics; The outer fabric consists of nylon fabric and an easy-to-clean, wear-resistant coating applied to the surface of the nylon fabric. The easy-to-clean, wear-resistant coating is made of modified waterborne polyurethane emulsion. By weight, the raw material composition of the modified waterborne polyurethane emulsion is: 75-80 parts polytetrahydrofuran glycol, 8-10 parts 2,2-dimethylolpropionic acid, 75-80 parts isophorone diisocyanate, 0.08-0.1 parts dibutyltin dilaurate, 10-12 parts hydroxyethyl methacrylate, 45-55 parts crosslinking agent aqueous solution, 10-12 parts silicone emulsion, 8-10 parts ammonium persulfate aqueous solution, 3-5 parts modified nano-alumina, and 50-60 parts ethyl acetate. The mass concentration of the crosslinking agent aqueous solution is 3-5%, and the mass concentration of the ammonium persulfate aqueous solution is 0.5-1%. The inner fabric is made of a blend of cotton and linen fibers as the base fabric, and then treated with an antibacterial treatment solution. By mass percentage, the antibacterial treatment solution includes: 4-6% citric acid, 2-3% chitosan-based antibacterial agent, 2-3% sodium hypophosphite, 1.5-2.5% triethanolamine and 0.1-0.3% fatty alcohol polyoxyethylene ether, with the balance being distilled water. The inner and outer fabrics are bonded together in sequence to create a multi-layered, wear-resistant, and easy-to-clean fabric.

2. A method for preparing the wear-resistant and easy-to-clean fabric according to claim 1, characterized in that, Includes the following steps: S1: Preparation of modified nano-alumina Modified nano-alumina was obtained by surface modification with a silane coupling agent and then reacted with polyhexamethylene guanidine. S2: Preparation of outer fabric S2.1: Acryloyl chloride and 1,4-butanediamine were added to anhydrous acetonitrile at a ratio of (1.9-2.1) g: 1 g: (30-40) mL, stirred thoroughly, and then heated and stirred at 30-40℃ for 2-3 h. After filtration, washing and vacuum drying, the mixture was recrystallized in a methanol aqueous solution at -28℃, and then filtered and vacuum dried to obtain the crosslinking agent. S2.2: Add dodecylbenzenesulfonic acid and sodium dodecyl sulfonate to deionized water at a mass ratio of (3.6-3.7):1:(110-120), heat and stir at 70-80℃ for 30-40 min, then add vinyltriethoxysilane, octamethylcyclotetrasiloxane and methyltriethoxysilane, continue to keep warm for 3-4 h, cool down and neutralize to obtain organosilicon emulsion; S2.3: Polytetrahydrofurandiol and 2,2-dimethylolpropionic acid are added to ethyl acetate and heated and stirred at 75-85℃. Then, isophorone diisocyanate and dibutyltin dilaurate are added while stirring. After stirring and maintaining the temperature for 2.5-3.5 hours, hydroxyethyl methacrylate is added while stirring to end-cap the reaction. After cooling, triethylamine is added to neutralize the reaction. Then, an aqueous solution of the crosslinking agent is added under high-speed stirring to emulsify the mixture and obtain a prepolymer emulsion. S2.4: Add the organosilicon emulsion and ammonium persulfate aqueous solution to the above prepolymer emulsion, heat and stir at 60-70℃ for 2-3 hours, cool, add the modified nano alumina obtained in step S1.4, stir and mix thoroughly, and then remove ethyl acetate by rotary evaporation to obtain the modified waterborne polyurethane emulsion. S2.5: The modified waterborne polyurethane emulsion is uniformly coated on the surface of the nylon fabric. After drying and curing, an easy-to-clean and wear-resistant layer is formed to obtain the outer fabric. S3: Preparation of chitosan-based antibacterial agents After alkalizing chitosan, it is reacted with 2,3-epoxypropyltrimethylammonium chloride, and then reacted with cinnamaldehyde to obtain a chitosan-based antibacterial agent. S4: Prepare the inner layer fabric The base fabric is made by blending cotton and flax fibers, and then treated with an antibacterial treatment solution made from the above-mentioned chitosan-based antibacterial agent to obtain the inner fabric. S5: Preparation of wear-resistant and easy-to-clean fabrics The inner layer fabric is bonded to the outer layer fabric to obtain a wear-resistant and easy-to-clean fabric.

3. The method for preparing a wear-resistant and easy-to-clean fabric according to claim 2, characterized in that, S1 specifically includes the following steps: S1.1: Add nano-alumina to deionized water at a ratio of 1g:(90-100)mL, then add sodium dodecylbenzenesulfonate, stir and disperse for 20-30min, then shear and disperse for 8-10min to obtain nano-alumina dispersion; S1.2: Add anhydrous ethanol to the above nano-alumina dispersion, stir and mix, then add silane coupling agent KH560, ultrasonically disperse for 10-20 min, stir and react at 50-60℃ for 1-2 h, cool, filter, wash and dry to obtain surface-modified nano-alumina; S1.3: Add the above surface-modified nano-alumina to deionized water at a ratio of 1g:(300-400)mL, and ultrasonically disperse for 10-20min to obtain a surface-modified nano-alumina dispersion. Then add polyhexamethylene guanidine to deionized water at a ratio of 1g:(40-50)mL, and stir thoroughly to dissolve to obtain a polyhexamethylene guanidine solution. S1.4: Add the above polyhexamethylene guanidine solution to the above surface-modified nano alumina dispersion at a volume ratio of 1:(3.8-4.2), stir and react for 46-48 hours, then filter, centrifuge, wash and dry to obtain modified nano alumina.

4. The method for preparing a wear-resistant and easy-to-clean fabric according to claim 3, characterized in that, S3 specifically includes the following steps: S3.1: Add chitosan to 1% acetic acid solution at a ratio of 1g:(40-50)mL, stir thoroughly to dissolve, and then add 1mol / L sodium hydroxide solution while stirring to adjust the pH to 9-10 to obtain an alkalized chitosan solution; S3.2: Add an equal volume of isopropanol to the above alkalized chitosan solution, stir and mix, then add an aqueous solution of 2,3-epoxypropyltrimethylammonium chloride, heat and stir at 65-70℃ for 5-6 hours, cool, add 1 mol / L dilute acetic acid to adjust the pH to neutral, then pour into anhydrous ethanol for alcohol precipitation, filtration, washing and vacuum drying to obtain the intermediate; S3.3: Dissolve the above intermediate in deionized water at a ratio of 1g:(30-40)mL, stir thoroughly to dissolve, and obtain an intermediate solution. Then dissolve cinnamaldehyde in anhydrous ethanol at a ratio of 1g:(10-20)mL, stir thoroughly to dissolve, and obtain a cinnamaldehyde solution. S3.4: Add the above cinnamaldehyde solution to the above intermediate solution at a volume ratio of 1:(2.8-3.2), and add 1 mol / L dilute acetic acid to adjust the pH to 4-5. Heat at 60-70℃ and react in the dark for 3-4 hours. After cooling, pour into ethyl acetate, and then filter, wash and vacuum dry to obtain chitosan-based antibacterial agent.

5. The method for preparing a wear-resistant and easy-to-clean fabric according to claim 4, characterized in that, S4 specifically includes the following steps: S4.1: Cotton fiber and flax fiber are blended at a mass ratio of (2-3):1 to obtain the base fabric; S4.2: Add citric acid to distilled water and stir to dissolve. Then add the chitosan-based antibacterial agent prepared in step S3.4 and stir to dissolve. Add triethanolamine, then add sodium hypophosphite and fatty alcohol polyoxyethylene ether and stir to mix thoroughly to obtain the antibacterial treatment solution. S4.3: The above-mentioned base fabric is placed in the above-mentioned antibacterial treatment solution and finished by a two-dip and two-roll process with a roll-off rate of 70-80%. After removal, it is pre-dried at 100-110℃ for 160-180s and then high-temperature set at 130-140℃ for 100-120s to obtain the inner layer fabric.

6. The method for preparing a wear-resistant and easy-to-clean fabric according to claim 3, characterized in that, The amount of sodium dodecylbenzenesulfonate added is 1-2 wt% of the mass of nano-alumina.

7. The method for preparing a wear-resistant and easy-to-clean fabric according to claim 3, characterized in that, The amount of anhydrous ethanol added is 1-3% of the volume of the nano-alumina dispersion, and the amount of silane coupling agent KH560 added is 5-6% of the volume of the nano-alumina dispersion.

8. The method for preparing a wear-resistant and easy-to-clean fabric according to claim 2, characterized in that, The mass ratio of vinyltriethoxysilane, methyltriethoxysilane and octamethylcyclotetrasiloxane is 1:1:(10-12), and the mass ratio of vinyltriethoxysilane to sodium dodecyl sulfonate is (3.1-3.2):

1.

9. The method for preparing a wear-resistant and easy-to-clean fabric according to claim 4, characterized in that, The aqueous solution of 2,3-epoxypropyltrimethylammonium chloride has a mass concentration of 60%, and the mass ratio of 2,3-epoxypropyltrimethylammonium chloride to chitosan is (3.6-4):

1.

10. The application of a wear-resistant and easy-to-clean fabric according to claim 1 or a wear-resistant and easy-to-clean fabric prepared by the preparation method of any one of claims 2-9 in tooling.

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