High-breathability antibacterial lining cloth and preparation method thereof

Abstract

The invention relates to the technical field of textiles, in particular to high-breathability antibacterial lining cloth and a preparation method thereof. The preparation method comprises the following steps: adding ethyl methacrylate, hydroxyethyl acrylate, modified chitosan, modified silver-loaded titanium dioxide, modified lignin and a lauryl sodium sulfate solution to obtain a pre-emulsion; and adding a lauryl sodium sulfate solution, a sodium bicarbonate solution and an ammonium persulfate solution into the pre-emulsion to obtain the acrylic acid adhesive. The high-breathability polyester fabric is soaked in the acrylic acid adhesive for 1-2 min, roll compacting and baking are conducted after soaking is completed, and the high-breathability antibacterial lining cloth is obtained. The high-breathability antibacterial lining cloth prepared by the preparation method has excellent antibacterial performance and ultraviolet resistance, so that the high-breathability antibacterial lining cloth has a wide application prospect in the technical field of textiles.

Description

Technical Field

[0001] The invention relates to the technical field of textiles, in particular to a highly breathable and antibacterial lining cloth and a preparation method thereof. Background Art

[0002] In the modern clothing industry, interlining, while a secondary material, holds considerable value. With technological advancements, modern interlinings have demonstrated numerous unique advantages. Interlinings play a crucial role in shaping and retaining garments. With ever-evolving fashion trends, demanding ever-more precise fit and lines, interlinings are crucial for shaping and maintaining garments. Whether it's a sophisticated suit or an elegant dress, interlinings help shape and maintain their perfect form. They help garments conform to the body's curves, creating a crisp, defined look and enhancing the wearer's spirit and elegance. Furthermore, during daily wear and washing, interlinings prevent garments from losing shape, preserving their appearance and extending their lifespan. Modern interlinings have made significant contributions to improving clothing quality. New interlinings, such as resin interlinings and bonded interlinings, are lightweight, soft, and tightly bonded to the fabric. Instead of adding bulk to garments, they enhance the fabric's crispness and drape, lending them a more refined and upscale look.

[0003] However, in daily life, human skin secretes sweat and oil, creating a suitable environment for the growth of bacteria. The large-scale reproduction of bacteria will produce unpleasant odors and may also cause skin diseases such as itching and allergies. Therefore, the preparation of clothing linings with antibacterial properties can inhibit bacterial growth, reduce the number of bacteria, and effectively provide a healthier wearing environment for the wearer. In addition, long-term exposure to ultraviolet rays may cause sunburn, tanning, aging and other problems on the skin, and even increase the risk of skin cancer. By improving the anti-ultraviolet properties of clothing linings, an effective protective barrier can be provided for the human body to prevent ultraviolet rays from penetrating clothing and contacting the skin. Especially for people who are exposed to the sun for a long time, such as outdoor workers and athletes, linings with anti-ultraviolet functions can greatly reduce the damage of ultraviolet rays to the skin.

[0004] In order to overcome the defects of the prior art, the present invention provides a highly breathable antibacterial lining cloth and a preparation method thereof. Summary of the Invention

[0005] The object of the present invention is to provide a highly breathable antibacterial lining cloth and a preparation method thereof, so as to solve the problems raised in the prior art.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A method for preparing a highly breathable antibacterial lining cloth comprises the following steps: Step S1: mixing ethyl methacrylate, hydroxyethyl acrylate, modified chitosan, modified silver-loaded titanium dioxide, and modified lignin, and ultrasonically dispersing the mixture for 40-50 minutes to obtain a monomer reaction liquid; adding the monomer reaction liquid dropwise to a sodium lauryl sulfate solution, and continuously stirring the mixture for 40-50 minutes after the addition is completed to obtain a pre-emulsion;

[0008] Step S2: mixing a sodium lauryl sulfate solution and a sodium bicarbonate solution, heating the mixture to 75-80° C., adding 1 / 2 part by mass of a pre-emulsion and 1 / 2 part by mass of an ammonium persulfate solution, and continuing the polymerization reaction for 30-40 minutes. The mixture is then heated to 85-90° C., and the remaining pre-emulsion and ammonium persulfate solution are slowly added. After the addition is completed, the mixture is kept warm for 1-2 hours to obtain an acrylic adhesive. The highly breathable polyester fabric is immersed in the acrylic adhesive for 1-2 minutes, and after the immersion is completed, the fabric is rolled and baked to obtain a highly breathable antibacterial lining cloth.

[0009] More optimally, the contents of each component of the pre-emulsion are: by mass, 30-35 parts of ethyl methacrylate, 10-15 parts of hydroxyethyl acrylate, 10-12 parts of modified chitosan, 7-9 parts of modified silver-loaded titanium dioxide, 10-12 parts of modified lignin, and 20-25 parts of sodium dodecyl sulfate solution; the sodium dodecyl sulfate solution is 5-20 g / L, the sodium bicarbonate solution is 0.5-0.7 g / L, and the ammonium persulfate solution is 0.8-1.0 g / L; the reaction mass ratio of sodium dodecyl sulfate solution, sodium bicarbonate solution, pre-emulsion and ammonium persulfate solution is 3:2:(18-20):1.

[0010] More optimally, the rolling process is: rolling twice, the first dipping and rolling rate is 89-90%, and the second dipping and rolling rate is 94-95%; the baking parameters are: pre-curing at 120-130°C for 1 minute, and then curing at 150-160°C for 2 minutes.

[0011] More optimally, the preparation process of modified chitosan is:

[0012] Step S1: Disperse chitosan in distilled water, heat to 80-85°C and stir thoroughly for 20-30 minutes, then add 2,3-epoxypropyltrimethylammonium chloride, continue stirring and react for 12-15 hours, and after the reaction is completed, add the reaction solution to acetone for precipitation, and then purify and dry to obtain quaternized chitosan;

[0013] Step S2: adding sodium hydroxide and quaternized chitosan to deionized water to obtain a chitosan reaction solution; adding zinc acetate to deionized water to obtain a zinc acetate reaction solution; adding the chitosan reaction solution dropwise to the zinc acetate reaction solution, and hydrothermally reacting at 90-95° C. for 5-6 hours. After the reaction is completed, cooling, adjusting the pH to 7.3-7.5, standing, centrifuging, washing, and drying to obtain zinc oxide-coated quaternized chitosan;

[0014] Step S3: adding γ-methacryloxypropyltrimethoxysilane to an ethanol-water solvent, stirring thoroughly for 20-30 minutes, then adding zinc oxide-coated quaternized chitosan, ultrasonically dispersing for 40-50 minutes, and after uniform dispersion, reflux reaction at 85-87° C. for 3-4 hours. After the reaction is completed, cooling, washing, and drying are performed to obtain modified chitosan.

[0015] More optimally, the volume ratio of ethanol and deionized water in the ethanol-water solvent is (3.0-3.5):1; the reaction mass ratio of chitosan and 2,3-epoxypropyltrimethylammonium chloride is 1:(3.5-4.0); the reaction mass ratio of sodium hydroxide, quaternized chitosan, and zinc acetate is 4:(1.3-1.5):2.5; and the reaction mass ratio of γ-methacryloyloxypropyltrimethoxysilane and zinc oxide-coated quaternized chitosan is (0.8-1.0):10.

[0016] More optimally, the preparation process of modified silver-loaded titanium dioxide is:

[0017] Step S1: adding titanium dioxide nanotubes to ethylene glycol, adjusting the pH to 8.0-8.5, and ultrasonically dispersing for 30-40 minutes. Then, adding 0.04-0.05 mol / L silver nitrate ethanol solution, and continuing ultrasonically dispersing for 15-20 minutes. After uniform dispersion, reacting in a water bath at 50-55° C. for 9-10 hours. After the reaction is completed, cooling, centrifuging, washing, and drying are performed to obtain silver-loaded titanium dioxide;

[0018] Step S2: adding silver-loaded titanium dioxide to 1.5-2.0 mol / L hydrochloric acid, ultrasonically dispersing for 30-40 minutes, stirring and reacting at 25-30° C. for 3-4 hours after uniform dispersion, washing and drying after completion of the reaction to obtain pretreated silver-loaded titanium dioxide; adding γ-methacryloxypropyltrimethoxysilane to an ethanol-water solvent, stirring thoroughly for 20-30 minutes, then adding the pretreated silver-loaded titanium dioxide, ultrasonically dispersing for 40-50 minutes, uniformly dispersing, reflux reacting at 85-87° C. for 6-7 hours, cooling, washing, and drying after completion of the reaction to obtain modified silver-loaded titanium dioxide.

[0019] More optimally, the mass volume ratio of titanium dioxide nanotubes, ethylene glycol, and silver nitrate ethanol solution is 1 g:100 mL:(25-30) mL; the reaction mass ratio of γ-methacryloxypropyltrimethoxysilane and pretreated silver-loaded titanium dioxide is (0.6-0.8):10.

[0020] More optimally, the preparation process of modified lignin is:

[0021] Step S1: adding lignin to a 6.0-6.3 mol / L sodium hydroxide solution to obtain a lignin reaction solution; adding 3-chloro-2-hydroxypropyl-trimethylammonium chloride to deionized water to obtain a quaternary ammonium salt reaction solution; adding the quaternary ammonium salt reaction solution dropwise to the lignin reaction solution, continuing the reaction for 20-30 minutes, and then continuing to add a 6.0-6.3 mol / L sodium hydroxide solution, stirring and reacting at 85-90° C. for 5-6 hours. After the reaction is completed, freeze-drying, washing, and drying are performed to obtain quaternized lignin;

[0022] Step S2: adding sodium hydroxide and quaternized lignin to deionized water to obtain a lignin reaction solution; adding zinc acetate to deionized water to obtain a zinc acetate reaction solution; adding the lignin reaction solution dropwise to the zinc acetate reaction solution, hydrothermally reacting at 90-95° C. for 5-6 hours, cooling after the reaction, adjusting the pH to 7.3-7.5, standing, centrifuging, washing, and drying to obtain zinc oxide-coated quaternized lignin;

[0023] Step S3: adding γ-methacryloxypropyltrimethoxysilane to an ethanol-water solvent, stirring thoroughly for 20-30 minutes, then adding zinc oxide-coated quaternized lignin, ultrasonically dispersing for 40-50 minutes, and after uniform dispersion, reflux reaction at 85-87° C. for 3-4 hours. After the reaction is completed, cooling, washing, and drying are performed to obtain modified lignin.

[0024] More optimally, the volume ratio of ethanol and deionized water in the ethanol-water solvent is (3.0-3.5):1; the reaction mass ratio of lignin and 3-chloro-2-hydroxypropyl-trimethylammonium chloride is 7:(6.0-6.2); the reaction mass ratio of sodium hydroxide, quaternized lignin, and zinc acetate is 4:(1.1-1.2):2.5; and the reaction mass ratio of γ-methacryloyloxypropyltrimethoxysilane and zinc oxide-coated quaternized lignin is (0.8-1.0):10.

[0025] Beneficial effects of the present invention:

[0026] The present invention is characterized by treating chitosan with 2,3-epoxypropyltrimethylammonium chloride to obtain quaternized chitosan with excellent antibacterial properties. The chitosan reaction solution is then dropwise added to a zinc acetate reaction solution, and a hydrothermal reaction is performed to obtain zinc oxide-coated quaternized chitosan with both UV resistance and antibacterial properties. Furthermore, the zinc oxide-coated quaternized chitosan is modified using γ-methacryloxypropyltrimethoxysilane to obtain a modified chitosan with carbon-carbon double bonds. Chitosan itself has certain antibacterial properties, and quaternization further enhances its antibacterial properties. Zinc oxide is an excellent UV absorber and scatterer. Therefore, coating the quaternized chitosan with zinc oxide protects the quaternized chitosan, making its antibacterial properties more durable and stable. Furthermore, the quaternized chitosan helps disperse the zinc oxide, ensuring a more uniform distribution and thus enhancing its UV resistance. The synergistic effect of the two makes zinc oxide-coated quaternized chitosan have excellent anti-ultraviolet and antibacterial properties.

[0027] The present invention is characterized in that, by adding titanium dioxide nanotubes, ethylene glycol, and silver nitrate ethanol solution, a uniform loading of Ag nanoparticles is achieved under mild conditions through an alkaline ethylene glycol reduction method to obtain silver-loaded titanium dioxide. The silver-loaded titanium dioxide is then modified using γ-methacryloxypropyltrimethoxysilane to obtain modified silver-loaded titanium dioxide with carbon-carbon double bonds. Titanium dioxide itself is an excellent UV shielding agent. When silver nanoparticles are exposed to ultraviolet light, the free electrons on their surfaces undergo collective oscillation, producing resonant absorption. This absorption effect complements the absorption of ultraviolet light by titanium dioxide, broadening the material's absorption range for ultraviolet light, thereby enabling the silver-loaded titanium dioxide to exhibit even better anti-ultraviolet properties. Furthermore, silver nanoparticles have strong antibacterial properties, and the titanium dioxide nanotubes provide a good loading platform for the silver nanoparticles, enabling their uniform dispersion, increasing the contact area between the silver nanoparticles and bacteria, and further improving their antibacterial efficiency.

[0028] The present invention is characterized in that lignin is treated by adding 3-chloro-2-hydroxypropyl-trimethylammonium chloride to obtain quaternized lignin with both UV resistance and antibacterial properties; the lignin reaction solution is then added dropwise to the zinc acetate reaction solution, and after a hydrothermal reaction, it is further coated with a UV-resistant zinc oxide layer to obtain zinc oxide-coated quaternized lignin. Furthermore, the zinc oxide-coated quaternized lignin is modified using γ-methacryloxypropyltrimethoxysilane to obtain modified lignin with introduced carbon-carbon double bonds. Lignin itself has certain biological activity, and after quaternization of lignin with 3-chloro-2-hydroxypropyl-trimethylammonium chloride, the antibacterial properties are significantly improved. At the same time, the lignin molecular structure contains a large number of phenylpropane structural units and chromophores and auxochromes such as conjugated double bonds, which can absorb ultraviolet energy. During the hydrothermal reaction, zinc oxide is coated on the surface of the quaternized lignin to form a stable composite structure. On the one hand, the zinc oxide coating protects the quaternized lignin, preventing the loss of its antimicrobial properties, extending its effective life and improving the durability of its antimicrobial properties. On the other hand, the zinc oxide is evenly distributed across the material surface, fully utilizing its UV resistance. The zinc oxide-coated quaternized lignin exhibits a synergistic effect, enhancing its UV resistance and antimicrobial properties, resulting in excellent overall performance.

[0029] Finally, the present invention obtains an acrylic adhesive by adding ethyl methacrylate, hydroxyethyl acrylate, modified chitosan, modified silver-loaded titanium dioxide, modified lignin, sodium lauryl sulfate solution, sodium bicarbonate solution, and ammonium persulfate solution. The carbon-carbon double bonds introduced by the γ-methacryloxypropyltrimethoxysilane modification enable these components to better combine with the acrylic system. In the acrylic adhesive, the three modified components are evenly dispersed, and their respective anti-UV and antibacterial effects complement and synergize with each other. Different absorption and scattering mechanisms operate in different bands, allowing the adhesive to more comprehensively and efficiently resist ultraviolet rays, thereby possessing excellent anti-UV properties; the different antibacterial mechanisms cooperate with each other to form a multi-faceted attack on a variety of bacteria. Therefore, when the highly breathable polyester fabric is impregnated with the acrylic adhesive, the adhesive adheres to the fabric surface and between the fibers, imparting anti-UV and antibacterial properties to the fabric, thereby producing a highly breathable antibacterial lining. DETAILED DESCRIPTION

[0030] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0031] Source of raw materials:

[0032] Chitosan, provided by Jiangsu Caiwei Biotechnology Co., Ltd., with a particle size of 80 mesh and a deacetylation degree of ≥80%; titanium dioxide nanotubes, provided by Jiangsu Xianfeng Nanomaterials Technology Co., Ltd., with a diameter of 10 nm; lignin, provided by Zhengzhou Alpha Chemical Co., Ltd., with analytical grade; highly breathable polyester fabric, provided by Suzhou Yiming Textile Co., Ltd., with 100% polyester and a density of 240 Tg / m 2 ; Calculated by mass, one part is 1g.

[0033] Example 1: Step 1: Disperse chitosan in distilled water, heat to 85°C and stir thoroughly for 30 minutes, then add 2,3-epoxypropyltrimethylammonium chloride, continue stirring and reacting for 15 hours, and after the reaction is completed, add the reaction solution to acetone for precipitation, and then purify and dry to obtain quaternized chitosan; add sodium hydroxide and quaternized chitosan to deionized water to obtain a chitosan reaction solution; add zinc acetate to deionized water to obtain a zinc acetate reaction solution; add the chitosan reaction solution dropwise to the zinc acetate reaction solution, and hydrothermally react at 95°C for 6 hours. After the reaction is completed, cool, adjust the pH to 7.5, let stand, centrifuge, wash, and dry to obtain zinc oxide-coated quaternized chitosan;

[0034] γ-methacryloxypropyltrimethoxysilane was added to an ethanol-water solvent, stirred thoroughly for 30 minutes, and then zinc oxide-coated quaternized chitosan was added, ultrasonically dispersed for 50 minutes, and then uniformly dispersed and refluxed at 87°C for 4 hours. After the reaction was completed, the modified chitosan was obtained by cooling, washing, and drying. The volume ratio of ethanol to deionized water in the ethanol-water solvent was 3.3:1; the reaction mass ratio of chitosan to 2,3-epoxypropyltrimethylammonium chloride was 1:3.7; the reaction mass ratio of sodium hydroxide to quaternized chitosan to zinc acetate was 4:1.4:2.5; and the reaction mass ratio of γ-methacryloxypropyltrimethoxysilane to zinc oxide-coated quaternized chitosan was 0.9:10.

[0035] Step 2: Add titanium dioxide nanotubes to ethylene glycol, adjust the pH to 8.5, and then add 0.05 mol / L silver nitrate ethanol solution after ultrasonic dispersion for 40 minutes. Continue ultrasonic dispersion for 20 minutes. After uniform dispersion, react in a 55°C water bath for 10 hours. After the reaction is completed, cool, centrifuge, wash, and dry to obtain silver-loaded titanium dioxide;

[0036] Silver-loaded titanium dioxide was added to 2.0 mol / L hydrochloric acid, ultrasonically dispersed for 40 minutes, and stirred at 30°C for 4 hours after uniform dispersion. After the reaction, the mixture was washed and dried to obtain pretreated silver-loaded titanium dioxide. γ-Methacryloxypropyltrimethoxysilane was added to an ethanol-water solvent, fully stirred for 30 minutes, and then the pretreated silver-loaded titanium dioxide was added, ultrasonically dispersed for 50 minutes, and uniformly dispersed, and refluxed at 87°C for 7 hours. After the reaction, the mixture was cooled, washed, and dried to obtain modified silver-loaded titanium dioxide. The mass volume ratio of titanium dioxide nanotubes, ethylene glycol, and silver nitrate ethanol solution was 1 g:100 mL:27 mL. The reaction mass ratio of γ-methacryloxypropyltrimethoxysilane to pretreated silver-loaded titanium dioxide was 0.7:10.

[0037] Step 3: adding lignin to a 6.3 mol / L sodium hydroxide solution to obtain a lignin reaction solution; adding 3-chloro-2-hydroxypropyl-trimethylammonium chloride to deionized water to obtain a quaternary ammonium salt reaction solution; adding the quaternary ammonium salt reaction solution dropwise to the lignin reaction solution, continuing the reaction for 30 minutes, and then continuing to add a 6.3 mol / L sodium hydroxide solution, stirring and reacting at 90°C for 6 hours, and after the reaction is completed, freeze-drying, washing, and drying to obtain quaternized lignin; adding sodium hydroxide and quaternized lignin to deionized water to obtain a lignin reaction solution; adding zinc acetate to deionized water to obtain a zinc acetate reaction solution; adding the lignin reaction solution dropwise to the zinc acetate reaction solution, hydrothermally reacting at 95°C for 6 hours, cooling after the reaction, adjusting the pH to 7.5, standing, centrifuging, washing, and drying to obtain zinc oxide-coated quaternized lignin;

[0038] γ-methacryloxypropyltrimethoxysilane is added to an ethanol-water solvent, stirred thoroughly for 30 minutes, and then zinc oxide-coated quaternized lignin is added, ultrasonically dispersed for 50 minutes, and then uniformly dispersed and refluxed at 87°C for 4 hours. After the reaction is completed, the modified lignin is obtained by cooling, washing, and drying. The volume ratio of ethanol to deionized water in the ethanol-water solvent is 3.3:1; the reaction mass ratio of lignin and 3-chloro-2-hydroxypropyl-trimethylammonium chloride is 7:6.1; the reaction mass ratio of sodium hydroxide, quaternized lignin, and zinc acetate is 4:1.15:2.5; and the reaction mass ratio of γ-methacryloxypropyltrimethoxysilane and zinc oxide-coated quaternized lignin is 0.9:10.

[0039] Step 4: 35g of ethyl methacrylate, 15g of hydroxyethyl acrylate, 12g of modified chitosan, 9g of modified silver-loaded titanium dioxide, and 12g of modified lignin were mixed and ultrasonically dispersed for 50min to obtain a monomer reaction solution; the monomer reaction solution was added dropwise to 25g of 20g / L sodium lauryl sulfate solution, and stirring was continued for 50min after the addition was completed to obtain a pre-emulsion; 10g / L sodium lauryl sulfate solution and 0.7g / L sodium bicarbonate solution were mixed, the temperature was raised to 80°C, and 1 / 2 part by mass of the pre-emulsion and 1 / 2 part by mass of 1g / L ammonium persulfate solution were added to continue the polymerization reaction for 40min. in, heat to 90℃ and slowly add the remaining pre-emulsion and ammonium persulfate solution. After the addition is completed, keep warm for 2h. After the reaction is completed, acrylic adhesive is obtained; the highly breathable polyester fabric is immersed in the acrylic adhesive for 2min. After the impregnation, it is rolled and baked to obtain a highly breathable antibacterial lining cloth; the reaction mass ratio of sodium lauryl sulfate solution, sodium bicarbonate solution, pre-emulsion and ammonium persulfate solution is 3:2:19:1; rolling process: rolling in two times, with the first dipping and rolling rate of 90% and the second dipping and rolling rate of 95%; baking parameters: pre-curing at 130℃ for 1min, then curing at 160℃ for 2min.

[0040] Example 2: Step 1: Disperse chitosan in distilled water, heat to 83°C and stir thoroughly for 25 minutes, then add 2,3-epoxypropyltrimethylammonium chloride, continue stirring and reacting for 14 hours, and after the reaction is completed, add the reaction solution to acetone for precipitation, and then purify and dry to obtain quaternized chitosan; add sodium hydroxide and quaternized chitosan to deionized water to obtain a chitosan reaction solution; add zinc acetate to deionized water to obtain a zinc acetate reaction solution; add the chitosan reaction solution dropwise to the zinc acetate reaction solution, and hydrothermally react at 93°C for 5.5 hours. After the reaction is completed, cool, adjust the pH to 7.4, let stand, centrifuge, wash, and dry to obtain zinc oxide-coated quaternized chitosan;

[0041] γ-methacryloxypropyltrimethoxysilane was added to an ethanol-water solvent, stirred for 25 minutes, and then zinc oxide-coated quaternized chitosan was added. The mixture was ultrasonically dispersed for 45 minutes, and then refluxed at 86°C for 3.5 hours after uniform dispersion. After the reaction, the mixture was cooled, washed, and dried to obtain modified chitosan. The volume ratio of ethanol to deionized water in the ethanol-water solvent was 3.3:1. The reaction mass ratio of chitosan to 2,3-epoxypropyltrimethylammonium chloride was 1:3.7. The reaction mass ratio of sodium hydroxide to quaternized chitosan to zinc acetate was 4:1.4:2.5. The reaction mass ratio of γ-methacryloxypropyltrimethoxysilane to zinc oxide-coated quaternized chitosan was 0.9:10.

[0042] Step 2: Add titanium dioxide nanotubes to ethylene glycol, adjust the pH to 8.3, and then add 0.05 mol / L silver nitrate ethanol solution after ultrasonic dispersion for 35 minutes. Continue ultrasonic dispersion for 17 minutes. After uniform dispersion, react in a 53°C water bath for 9.5 hours. After the reaction is completed, cool, centrifuge, wash, and dry to obtain silver-loaded titanium dioxide;

[0043] Silver-loaded titanium dioxide was added to 2.0 mol / L hydrochloric acid, ultrasonically dispersed for 35 minutes, and stirred at 27°C for 3.5 hours after uniform dispersion. After the reaction, the mixture was washed and dried to obtain pretreated silver-loaded titanium dioxide. γ-Methacryloxypropyltrimethoxysilane was added to an ethanol-water solvent, fully stirred for 25 minutes, and then the pretreated silver-loaded titanium dioxide was added, ultrasonically dispersed for 45 minutes, and uniformly dispersed, and refluxed at 86°C for 6.5 hours. After the reaction, the mixture was cooled, washed, and dried to obtain modified silver-loaded titanium dioxide. The mass volume ratio of titanium dioxide nanotubes, ethylene glycol, and silver nitrate ethanol solution was 1 g:100 mL:27 mL. The reaction mass ratio of γ-methacryloxypropyltrimethoxysilane to pretreated silver-loaded titanium dioxide was 0.7:10.

[0044] Step 3: adding lignin to a 6.3 mol / L sodium hydroxide solution to obtain a lignin reaction solution; adding 3-chloro-2-hydroxypropyl-trimethylammonium chloride to deionized water to obtain a quaternary ammonium salt reaction solution; adding the quaternary ammonium salt reaction solution dropwise to the lignin reaction solution, continuing the reaction for 25 minutes, and then continuing to add a 6.3 mol / L sodium hydroxide solution, stirring and reacting at 87°C for 5.5 hours. After the reaction is completed, freeze-drying, washing, and drying are performed to obtain quaternized lignin; sodium hydroxide and quaternized lignin are added to deionized water to obtain a lignin reaction solution; zinc acetate is added to deionized water to obtain a zinc acetate reaction solution; the lignin reaction solution is added dropwise to the zinc acetate reaction solution, and hydrothermally reacted at 93°C for 5.5 hours. After the reaction is completed, cooling, adjusting the pH to 7.4, standing, centrifuging, washing, and drying are performed to obtain zinc oxide-coated quaternized lignin;

[0045] γ-methacryloxypropyltrimethoxysilane is added to an ethanol-water solvent, stirred thoroughly for 25 minutes, and then zinc oxide-coated quaternized lignin is added, ultrasonically dispersed for 45 minutes, and then uniformly dispersed and refluxed at 86°C for 3.5 hours. After the reaction is completed, the modified lignin is obtained by cooling, washing, and drying. The volume ratio of ethanol to deionized water in the ethanol-water solvent is 3.3:1; the reaction mass ratio of lignin and 3-chloro-2-hydroxypropyl-trimethylammonium chloride is 7:6.1; the reaction mass ratio of sodium hydroxide, quaternized lignin, and zinc acetate is 4:1.15:2.5; and the reaction mass ratio of γ-methacryloxypropyltrimethoxysilane and zinc oxide-coated quaternized lignin is 0.9:10.

[0046] Step 4: 35g of ethyl methacrylate, 15g of hydroxyethyl acrylate, 12g of modified chitosan, 9g of modified silver-loaded titanium dioxide, and 12g of modified lignin were mixed and ultrasonically dispersed for 45min to obtain a monomer reaction solution; the monomer reaction solution was added dropwise to 25g of 20g / L sodium lauryl sulfate solution, and stirring was continued for 45min after the addition was completed to obtain a pre-emulsion; 10g / L sodium lauryl sulfate solution and 0.7g / L sodium bicarbonate solution were mixed, the temperature was raised to 77°C, and 1 / 2 parts by mass of the pre-emulsion and 1 / 2 parts by mass of 1g / L ammonium persulfate solution were added to continue the polymerization reaction for 35min, and the temperature was raised to 77°C. The temperature was raised to 87°C and the remaining pre-emulsion and ammonium persulfate solution were slowly added. After the addition was completed, the temperature was kept for 1.5 hours. After the reaction was completed, an acrylic adhesive was obtained. The highly breathable polyester fabric was immersed in the acrylic adhesive for 1.5 minutes. After the impregnation was completed, it was rolled and baked to obtain a highly breathable antibacterial lining cloth. The reaction mass ratio of sodium lauryl sulfate solution, sodium bicarbonate solution, pre-emulsion and ammonium persulfate solution was 3:2:19:1. The rolling process was carried out in two rolling steps, with the first immersion rolling rate of 89.5% and the second immersion rolling rate of 94.5%. The baking parameters were as follows: pre-curing at 125°C for 1 minute and then curing at 155°C for 2 minutes.

[0047] Example 3: Step 1: Disperse chitosan in distilled water, heat to 80°C and stir thoroughly for 20 minutes, then add 2,3-epoxypropyltrimethylammonium chloride, continue stirring and reacting for 12 hours, and after the reaction is completed, add the reaction solution to acetone for precipitation, and then purify and dry to obtain quaternized chitosan; add sodium hydroxide and quaternized chitosan to deionized water to obtain a chitosan reaction solution; add zinc acetate to deionized water to obtain a zinc acetate reaction solution; add the chitosan reaction solution dropwise to the zinc acetate reaction solution, and hydrothermally react at 90°C for 5 hours. After the reaction is completed, cool, adjust the pH to 7.3, let stand, centrifuge, wash, and dry to obtain zinc oxide-coated quaternized chitosan;

[0048] γ-methacryloxypropyltrimethoxysilane was added to an ethanol-water solvent, and the mixture was stirred for 20 minutes. Zinc oxide-coated quaternized chitosan was then added and ultrasonically dispersed for 40 minutes. After uniform dispersion, the mixture was refluxed at 85°C for 3 hours. After the reaction was completed, the mixture was cooled, washed, and dried to obtain modified chitosan. The volume ratio of ethanol to deionized water in the ethanol-water solvent was 3.3:1. The reaction mass ratio of chitosan to 2,3-epoxypropyltrimethylammonium chloride was 1:3.7. The reaction mass ratio of sodium hydroxide to quaternized chitosan to zinc acetate was 4:1.4:2.5. The reaction mass ratio of γ-methacryloxypropyltrimethoxysilane to zinc oxide-coated quaternized chitosan was 0.9:10.

[0049] Step 2: Add titanium dioxide nanotubes to ethylene glycol, adjust the pH to 8.0, and then add 0.05 mol / L silver nitrate ethanol solution after ultrasonic dispersion for 30 minutes. Continue ultrasonic dispersion for 15 minutes. After uniform dispersion, react in a 50°C water bath for 9 hours. After the reaction is completed, cool, centrifuge, wash, and dry to obtain silver-loaded titanium dioxide;

[0050] Silver-loaded titanium dioxide was added to 2.0 mol / L hydrochloric acid, ultrasonically dispersed for 30 minutes, and stirred at 25°C for 3 hours after uniform dispersion. After the reaction, the mixture was washed and dried to obtain pretreated silver-loaded titanium dioxide. γ-Methacryloxypropyltrimethoxysilane was added to an ethanol-water solvent, fully stirred for 20 minutes, and then the pretreated silver-loaded titanium dioxide was added, ultrasonically dispersed for 40 minutes, and uniformly dispersed, and refluxed at 85°C for 6 hours. After the reaction, the mixture was cooled, washed, and dried to obtain modified silver-loaded titanium dioxide. The mass volume ratio of titanium dioxide nanotubes, ethylene glycol, and silver nitrate ethanol solution was 1 g:100 mL:27 mL. The reaction mass ratio of γ-methacryloxypropyltrimethoxysilane to pretreated silver-loaded titanium dioxide was 0.7:10.

[0051] Step 3: adding lignin to a 6.3 mol / L sodium hydroxide solution to obtain a lignin reaction solution; adding 3-chloro-2-hydroxypropyl-trimethylammonium chloride to deionized water to obtain a quaternary ammonium salt reaction solution; adding the quaternary ammonium salt reaction solution dropwise to the lignin reaction solution, continuing the reaction for 20 minutes, and then continuing to add a 6.3 mol / L sodium hydroxide solution, stirring and reacting at 85°C for 5 hours, and after the reaction is completed, freeze-drying, washing, and drying to obtain quaternized lignin; adding sodium hydroxide and quaternized lignin to deionized water to obtain a lignin reaction solution; adding zinc acetate to deionized water to obtain a zinc acetate reaction solution; adding the lignin reaction solution dropwise to the zinc acetate reaction solution, hydrothermally reacting at 90°C for 5 hours, cooling after the reaction, adjusting the pH to 7.3, standing, centrifuging, washing, and drying to obtain zinc oxide-coated quaternized lignin;

[0052] γ-methacryloxypropyltrimethoxysilane is added to an ethanol-water solvent, stirred thoroughly for 20 minutes, and then zinc oxide-coated quaternized lignin is added, ultrasonically dispersed for 40 minutes, and then uniformly dispersed and refluxed at 85°C for 3 hours. After the reaction is completed, the modified lignin is obtained by cooling, washing, and drying. The volume ratio of ethanol to deionized water in the ethanol-water solvent is 3.3:1; the reaction mass ratio of lignin and 3-chloro-2-hydroxypropyl-trimethylammonium chloride is 7:6.1; the reaction mass ratio of sodium hydroxide, quaternized lignin, and zinc acetate is 4:1.15:2.5; and the reaction mass ratio of γ-methacryloxypropyltrimethoxysilane and zinc oxide-coated quaternized lignin is 0.9:10.

[0053] Step 4: 35g of ethyl methacrylate, 15g of hydroxyethyl acrylate, 12g of modified chitosan, 9g of modified silver-loaded titanium dioxide, and 12g of modified lignin were mixed and ultrasonically dispersed for 40min to obtain a monomer reaction solution; the monomer reaction solution was added dropwise to 25g of 20g / L sodium lauryl sulfate solution, and stirring was continued for 40min after the addition was completed to obtain a pre-emulsion; 10g / L sodium lauryl sulfate solution and 0.7g / L sodium bicarbonate solution were mixed, the temperature was raised to 75°C, and 1 / 2 part by mass of the pre-emulsion and 1 / 2 part by mass of 1g / L ammonium persulfate solution were added to continue the polymerization reaction for 30min. in, heat to 85℃ and slowly add the remaining pre-emulsion and ammonium persulfate solution. After the addition is completed, keep warm for 1 hour. After the reaction is completed, obtain acrylic adhesive; highly breathable polyester fabric is immersed in acrylic adhesive for 1 minute. After the impregnation, it is rolled and baked to obtain highly breathable antibacterial lining cloth; the reaction mass ratio of sodium lauryl sulfate solution, sodium bicarbonate solution, pre-emulsion and ammonium persulfate solution is 3:2:19:1; rolling process: rolling in two times, the first dipping rolling rate is 89%, and the second dipping rolling rate is 94%; baking parameters: pre-curing at 120℃ for 1 minute, and then curing at 150℃ for 2 minutes.

[0054] Comparative Example 1: The modified chitosan was removed, and the rest was the same as in Example 1, and the specific steps were as follows: Step 1: Titanium dioxide nanotubes were added to ethylene glycol, and the pH was adjusted to 8.5. After ultrasonic dispersion for 40 minutes, 0.05 mol / L silver nitrate ethanol solution was added, and ultrasonic dispersion was continued for 20 minutes. After uniform dispersion, the mixture was reacted in a water bath at 55°C for 10 hours. After the reaction was completed, the mixture was cooled, centrifuged, washed, and dried to obtain silver-loaded titanium dioxide;

[0055] Silver-loaded titanium dioxide was added to 2.0 mol / L hydrochloric acid, ultrasonically dispersed for 40 minutes, and stirred at 30°C for 4 hours after uniform dispersion. After the reaction, the mixture was washed and dried to obtain pretreated silver-loaded titanium dioxide. γ-Methacryloxypropyltrimethoxysilane was added to an ethanol-water solvent, fully stirred for 30 minutes, and then the pretreated silver-loaded titanium dioxide was added, ultrasonically dispersed for 50 minutes, and uniformly dispersed, and refluxed at 87°C for 7 hours. After the reaction, the mixture was cooled, washed, and dried to obtain modified silver-loaded titanium dioxide. The mass volume ratio of titanium dioxide nanotubes, ethylene glycol, and silver nitrate ethanol solution was 1 g:100 mL:27 mL. The reaction mass ratio of γ-methacryloxypropyltrimethoxysilane to pretreated silver-loaded titanium dioxide was 0.7:10.

[0056] Step 2: adding lignin to a 6.3 mol / L sodium hydroxide solution to obtain a lignin reaction solution; adding 3-chloro-2-hydroxypropyl-trimethylammonium chloride to deionized water to obtain a quaternary ammonium salt reaction solution; adding the quaternary ammonium salt reaction solution dropwise to the lignin reaction solution, continuing the reaction for 30 minutes, and then continuing to add a 6.3 mol / L sodium hydroxide solution, stirring and reacting at 90°C for 6 hours, and after the reaction is completed, freeze-drying, washing, and drying to obtain quaternized lignin; adding sodium hydroxide and quaternized lignin to deionized water to obtain a lignin reaction solution; adding zinc acetate to deionized water to obtain a zinc acetate reaction solution; adding the lignin reaction solution dropwise to the zinc acetate reaction solution, hydrothermally reacting at 95°C for 6 hours, cooling after the reaction, adjusting the pH to 7.5, standing, centrifuging, washing, and drying to obtain zinc oxide-coated quaternized lignin;

[0057] γ-methacryloxypropyltrimethoxysilane is added to an ethanol-water solvent, stirred thoroughly for 30 minutes, and then zinc oxide-coated quaternized lignin is added, ultrasonically dispersed for 50 minutes, and then uniformly dispersed and refluxed at 87°C for 4 hours. After the reaction is completed, the modified lignin is obtained by cooling, washing, and drying. The volume ratio of ethanol to deionized water in the ethanol-water solvent is 3.3:1; the reaction mass ratio of lignin and 3-chloro-2-hydroxypropyl-trimethylammonium chloride is 7:6.1; the reaction mass ratio of sodium hydroxide, quaternized lignin, and zinc acetate is 4:1.15:2.5; and the reaction mass ratio of γ-methacryloxypropyltrimethoxysilane and zinc oxide-coated quaternized lignin is 0.9:10.

[0058] Step 3: 35g of ethyl methacrylate, 15g of hydroxyethyl acrylate, 9g of modified silver-loaded titanium dioxide, and 12g of modified lignin were mixed and ultrasonically dispersed for 50min to obtain a monomer reaction solution; the monomer reaction solution was added dropwise to 25g of 20g / L sodium lauryl sulfate solution, and stirred for 50min after the addition was completed to obtain a pre-emulsion; 10g / L sodium lauryl sulfate solution and 0.7g / L sodium bicarbonate solution were mixed, the temperature was raised to 80°C, and 1 / 2 part by mass of the pre-emulsion and 1 / 2 part by mass of 1g / L ammonium persulfate solution were added to continue the polymerization reaction for 40min, and the temperature was raised to 100°C. The mixture was heated to 90°C and the remaining pre-emulsion and ammonium persulfate solution were slowly added. After the addition was completed, the mixture was kept warm for 2 hours. After the reaction was completed, an acrylic adhesive was obtained. The highly breathable polyester fabric was immersed in the acrylic adhesive for 2 minutes. After the impregnation, the fabric was rolled and baked to obtain a highly breathable antibacterial lining cloth. The reaction mass ratio of sodium lauryl sulfate solution, sodium bicarbonate solution, pre-emulsion and ammonium persulfate solution was 3:2:19:1. The rolling process was carried out in two rolling steps, with a rolling rate of 90% for the first immersion and 95% for the second immersion. The baking parameters were as follows: pre-curing at 130°C for 1 minute and then curing at 160°C for 2 minutes.

[0059] Comparative Example 2: The modified silver-loaded titanium dioxide was removed, and the rest was the same as Example 1, and the specific steps were as follows: Step 1: chitosan was dispersed in distilled water, heated to 85°C and stirred for 30 minutes, and then 2,3-epoxypropyltrimethylammonium chloride was added, and the stirring reaction was continued for 15 hours. After the reaction, the reaction solution was added to acetone for precipitation, and then purified and dried to obtain quaternized chitosan; sodium hydroxide and quaternized chitosan were added to deionized water to obtain a chitosan reaction solution; zinc acetate was added to deionized water to obtain a zinc acetate reaction solution; the chitosan reaction solution was added dropwise to the zinc acetate reaction solution, and the reaction was hydrothermally reacted at 95°C for 6 hours. After the reaction, the reaction was cooled, the pH was adjusted to 7.5, allowed to stand, centrifuged, washed, and dried to obtain zinc oxide-coated quaternized chitosan;

[0060] γ-methacryloxypropyltrimethoxysilane was added to an ethanol-water solvent, stirred thoroughly for 30 minutes, and then zinc oxide-coated quaternized chitosan was added, ultrasonically dispersed for 50 minutes, and then uniformly dispersed and refluxed at 87°C for 4 hours. After the reaction was completed, the modified chitosan was obtained by cooling, washing, and drying. The volume ratio of ethanol to deionized water in the ethanol-water solvent was 3.3:1; the reaction mass ratio of chitosan to 2,3-epoxypropyltrimethylammonium chloride was 1:3.7; the reaction mass ratio of sodium hydroxide to quaternized chitosan to zinc acetate was 4:1.4:2.5; and the reaction mass ratio of γ-methacryloxypropyltrimethoxysilane to zinc oxide-coated quaternized chitosan was 0.9:10.

[0061] Step 2: adding lignin to a 6.3 mol / L sodium hydroxide solution to obtain a lignin reaction solution; adding 3-chloro-2-hydroxypropyl-trimethylammonium chloride to deionized water to obtain a quaternary ammonium salt reaction solution; adding the quaternary ammonium salt reaction solution dropwise to the lignin reaction solution, continuing the reaction for 30 minutes, and then continuing to add a 6.3 mol / L sodium hydroxide solution, stirring and reacting at 90°C for 6 hours, and after the reaction is completed, freeze-drying, washing, and drying to obtain quaternized lignin; adding sodium hydroxide and quaternized lignin to deionized water to obtain a lignin reaction solution; adding zinc acetate to deionized water to obtain a zinc acetate reaction solution; adding the lignin reaction solution dropwise to the zinc acetate reaction solution, hydrothermally reacting at 95°C for 6 hours, cooling after the reaction, adjusting the pH to 7.5, standing, centrifuging, washing, and drying to obtain zinc oxide-coated quaternized lignin;

[0062] γ-methacryloxypropyltrimethoxysilane is added to an ethanol-water solvent, stirred thoroughly for 30 minutes, and then zinc oxide-coated quaternized lignin is added, ultrasonically dispersed for 50 minutes, and then uniformly dispersed and refluxed at 87°C for 4 hours. After the reaction is completed, the modified lignin is obtained by cooling, washing, and drying. The volume ratio of ethanol to deionized water in the ethanol-water solvent is 3.3:1; the reaction mass ratio of lignin and 3-chloro-2-hydroxypropyl-trimethylammonium chloride is 7:6.1; the reaction mass ratio of sodium hydroxide, quaternized lignin, and zinc acetate is 4:1.15:2.5; and the reaction mass ratio of γ-methacryloxypropyltrimethoxysilane and zinc oxide-coated quaternized lignin is 0.9:10.

[0063] Step 3: 35g of ethyl methacrylate, 15g of hydroxyethyl acrylate, 12g of modified chitosan, and 12g of modified lignin were mixed and ultrasonically dispersed for 50min to obtain a monomer reaction solution; the monomer reaction solution was added dropwise to 25g of 20g / L sodium lauryl sulfate solution, and stirring was continued for 50min after the addition was completed to obtain a pre-emulsion; 10g / L sodium lauryl sulfate solution and 0.7g / L sodium bicarbonate solution were mixed, the temperature was raised to 80°C, and 1 / 2 mass part of pre-emulsion and 1 / 2 mass part of 1g / L ammonium persulfate solution were added to continue the polymerization reaction for 40min, and the temperature was raised to 90℃ and slowly add the remaining pre-emulsion and ammonium persulfate solution. After the addition is completed, keep warm for 2h. After the reaction is completed, obtain acrylic adhesive; the highly breathable polyester fabric is immersed in the acrylic adhesive for 2min. After the impregnation, it is rolled and baked to obtain a highly breathable antibacterial lining cloth; the reaction mass ratio of sodium lauryl sulfate solution, sodium bicarbonate solution, pre-emulsion and ammonium persulfate solution is 3:2:19:1; rolling process: rolling twice, the first immersion rolling rate is 90%, and the second immersion rolling rate is 95%; baking parameters: pre-curing at 130℃ for 1min, and then curing at 160℃ for 2min.

[0064] Comparative Example 3: The modified lignin was removed, and the rest was the same as Example 1, and the specific steps were as follows: Step 1: chitosan was dispersed in distilled water, heated to 85°C and stirred for 30 minutes, and then 2,3-epoxypropyltrimethylammonium chloride was added, and the stirring reaction was continued for 15 hours. After the reaction, the reaction solution was added to acetone for precipitation, and then purified and dried to obtain quaternized chitosan; sodium hydroxide and quaternized chitosan were added to deionized water to obtain a chitosan reaction solution; zinc acetate was added to deionized water to obtain a zinc acetate reaction solution; the chitosan reaction solution was added dropwise to the zinc acetate reaction solution, and the reaction was hydrothermally reacted at 95°C for 6 hours. After the reaction was completed, the reaction was cooled, the pH was adjusted to 7.5, allowed to stand, centrifuged, washed, and dried to obtain zinc oxide-coated quaternized chitosan;

[0065] γ-methacryloxypropyltrimethoxysilane was added to an ethanol-water solvent, stirred thoroughly for 30 minutes, and then zinc oxide-coated quaternized chitosan was added, ultrasonically dispersed for 50 minutes, and then uniformly dispersed and refluxed at 87°C for 4 hours. After the reaction was completed, the modified chitosan was obtained by cooling, washing, and drying. The volume ratio of ethanol to deionized water in the ethanol-water solvent was 3.3:1; the reaction mass ratio of chitosan to 2,3-epoxypropyltrimethylammonium chloride was 1:3.7; the reaction mass ratio of sodium hydroxide to quaternized chitosan to zinc acetate was 4:1.4:2.5; and the reaction mass ratio of γ-methacryloxypropyltrimethoxysilane to zinc oxide-coated quaternized chitosan was 0.9:10.

[0066] Step 2: Add titanium dioxide nanotubes to ethylene glycol, adjust the pH to 8.5, and then add 0.05 mol / L silver nitrate ethanol solution after ultrasonic dispersion for 40 minutes. Continue ultrasonic dispersion for 20 minutes. After uniform dispersion, react in a 55°C water bath for 10 hours. After the reaction is completed, cool, centrifuge, wash, and dry to obtain silver-loaded titanium dioxide;

[0067] Silver-loaded titanium dioxide was added to 2.0 mol / L hydrochloric acid, ultrasonically dispersed for 40 minutes, and stirred at 30°C for 4 hours after uniform dispersion. After the reaction, the mixture was washed and dried to obtain pretreated silver-loaded titanium dioxide. γ-Methacryloxypropyltrimethoxysilane was added to an ethanol-water solvent, fully stirred for 30 minutes, and then the pretreated silver-loaded titanium dioxide was added, ultrasonically dispersed for 50 minutes, and uniformly dispersed, and refluxed at 87°C for 7 hours. After the reaction, the mixture was cooled, washed, and dried to obtain modified silver-loaded titanium dioxide. The mass volume ratio of titanium dioxide nanotubes, ethylene glycol, and silver nitrate ethanol solution was 1 g:100 mL:27 mL. The reaction mass ratio of γ-methacryloxypropyltrimethoxysilane to pretreated silver-loaded titanium dioxide was 0.7:10.

[0068] Step 3: 35g of ethyl methacrylate, 15g of hydroxyethyl acrylate, 12g of modified chitosan, and 9g of modified silver-loaded titanium dioxide were mixed and ultrasonically dispersed for 50min to obtain a monomer reaction solution; the monomer reaction solution was added dropwise to 25g of 20g / L sodium lauryl sulfate solution, and stirred for 50min after the addition was completed to obtain a pre-emulsion; 10g / L of sodium lauryl sulfate solution and 0.7g / L of sodium bicarbonate solution were mixed, the temperature was raised to 80°C, and 1 / 2 of the pre-emulsion and 1 / 2 of the 1g / L ammonium persulfate solution were added to continue the polymerization reaction for 40min, and the temperature was raised to 50°C. The mixture was heated to 90°C and the remaining pre-emulsion and ammonium persulfate solution were slowly added. After the addition was completed, the mixture was kept warm for 2 hours. After the reaction was completed, an acrylic adhesive was obtained. The highly breathable polyester fabric was immersed in the acrylic adhesive for 2 minutes. After the impregnation, the fabric was rolled and baked to obtain a highly breathable antibacterial lining cloth. The reaction mass ratio of sodium lauryl sulfate solution, sodium bicarbonate solution, pre-emulsion and ammonium persulfate solution was 3:2:19:1. The rolling process was carried out in two rolling steps, with a rolling rate of 90% for the first immersion and 95% for the second immersion. The baking parameters were as follows: pre-curing at 130°C for 1 minute and then curing at 160°C for 2 minutes.

[0069] Detection test:

[0070] Antibacterial test: Escherichia coli was activated in advance and prepared with bacterial culture solution, and then the bacterial culture solution was diluted to a concentration of 1×10 5 CFU / mL, then put the sample into a culture dish, draw the diluted bacterial culture solution and evenly drop it on the surface of the sample, culture it at 25℃ for 20h, and set the control group to culture under the same conditions. After the culture is completed, count the number of colonies on the sample group and the control group plates respectively, and then substitute it into the formula to calculate the antibacterial rate.

[0071] UV resistance test: Referring to GB / T 18830-2009, "Evaluation of the UV Protection of Textiles," the highly breathable antibacterial interlining prepared in this invention was used as a sample. The UPF value and average UVA transmittance (sunlight ultraviolet radiation with a wavelength of 315nm-400nm) of the sample were tested. The results are shown in the following table:

[0072] Antibacterial rate / % UPF value UVA average transmittance / % Example 1 98.6 126 1.3 Example 2 98.2 125 1.4 Example 3 97.9 122 1.5 Comparative Example 1 85.7 112 2.1 Comparative Example 2 90.6 103 2.8 Comparative Example 3 94.5 87 4.9

[0073] Conclusion: The dosage of Examples 1 to 3 remained unchanged, and only some reaction parameters were modified. From the experimental data, it can be seen that there is no significant fluctuation in the performance of the samples.

[0074] Comparative Example 1: The modified chitosan is removed, and the rest is the same as Example 1. It can be seen from the experimental data that compared with Example 1, the antibacterial rate is reduced to 85.7%, the UPF value is reduced to 112, and the UVA average transmittance is increased by 2.1%. The reasons are analyzed as follows: chitosan itself has a certain antibacterial ability, and the quaternary ammonium modification further enhances its antibacterial performance. Zinc oxide is an excellent ultraviolet absorber and scatterer, so the prepared modified chitosan has excellent anti-ultraviolet and antibacterial properties. Therefore, after removing the modified chitosan, the antibacterial rate is reduced, the UPF value is reduced, and the UVA average transmittance is increased.

[0075] Comparative Example 2: The modified silver-loaded titanium dioxide is removed, and the rest is the same as Example 1. It can be seen from the experimental data that compared with Example 1, the antibacterial rate is reduced to 90.6%, the UPF value is reduced to 103, and the UVA average transmittance is increased by 2.8%. The reasons are analyzed as follows: titanium dioxide is an excellent ultraviolet shielding agent, and silver nanoparticles have excellent antibacterial properties. Therefore, the silver-loaded titanium dioxide synergistically prepared by silver nanoparticles and titanium dioxide exhibits excellent anti-ultraviolet and antibacterial properties. Therefore, after the modified silver-loaded titanium dioxide is removed, the antibacterial rate is reduced, the UPF value is reduced, and the UVA average transmittance is increased.

[0076] Comparative Example 3: The modified lignin is removed, and the rest is the same as Example 1. It can be seen from the experimental data that compared with Example 1, the antibacterial rate is reduced to 94.5%, the UPF value is reduced to 87, and the average UVA transmittance is increased by 4.9%. The reasons are analyzed as follows: both the lignin molecules and the zinc oxide layer have excellent anti-ultraviolet properties, and the lignin molecules after quaternization treatment have antibacterial properties; therefore, the zinc oxide-coated quaternized lignin obtained by the hydrothermal reaction has a stable composite structure while also having excellent anti-ultraviolet and antibacterial properties. Therefore, after removing the modified lignin, the antibacterial rate is reduced, the UPF value is reduced, and the average UVA transmittance is increased.

[0077] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprise," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0078] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A method for preparing a highly breathable antibacterial lining cloth, characterized by: The following steps are involved: Step S1: Ethyl methacrylate, hydroxyethyl acrylate, modified chitosan, modified silver-loaded titanium dioxide, and modified lignin are mixed and ultrasonically dispersed for 40-50 minutes to obtain a monomer reaction solution; the monomer reaction solution is added dropwise to a sodium lauryl sulfate solution, and stirring is continued for 40-50 minutes after the addition is completed to obtain a pre-emulsion; Step S2: mixing a sodium lauryl sulfate solution and a sodium bicarbonate solution, heating the mixture to 75-80° C., adding 1 / 2 part by mass of a pre-emulsion and 1 / 2 part by mass of an ammonium persulfate solution, and continuing the polymerization reaction for 30-40 minutes. The mixture is then heated to 85-90° C., and the remaining pre-emulsion and ammonium persulfate solution are slowly added. After the addition is completed, the mixture is kept warm for 1-2 hours to obtain an acrylic adhesive. The highly breathable polyester fabric is immersed in the acrylic adhesive for 1-2 minutes, and after the immersion is completed, the fabric is rolled and baked to obtain a highly breathable antibacterial lining cloth.

2. The method for preparing a highly breathable antibacterial lining cloth according to claim 1, characterized in that: The contents of the pre-emulsion components are as follows: by mass: 30-35 parts of ethyl methacrylate, 10-15 parts of hydroxyethyl acrylate, 10-12 parts of modified chitosan, 7-9 parts of modified silver-loaded titanium dioxide, 10-12 parts of modified lignin, and 20-25 parts of sodium lauryl sulfate solution; the sodium lauryl sulfate solution is 5-20 g / L, the sodium bicarbonate solution is 0.5-0.7 g / L, and the ammonium persulfate solution is 0.8-1.0 g / L; and the reaction mass ratio of the sodium lauryl sulfate solution, the sodium bicarbonate solution, the pre-emulsion, and the ammonium persulfate solution is 3:2:(18-20):

1.

3. The method for preparing a highly breathable antibacterial lining cloth according to claim 1, characterized in that: Rolling process: rolling in two steps, the first dipping and rolling rate is 89-90%, and the second dipping and rolling rate is 94-95%; baking parameters: pre-curing at 120-130℃ for 1min, and then curing at 150-160℃ for 2min.

4. The method for preparing a highly breathable antibacterial lining cloth according to claim 1, characterized in that: The preparation process of modified chitosan is as follows: Step S1: Disperse chitosan in distilled water, heat to 80-85°C and stir thoroughly for 20-30 minutes, then add 2,3-epoxypropyltrimethylammonium chloride, continue stirring and react for 12-15 hours, and after the reaction is completed, add the reaction solution to acetone for precipitation, and then purify and dry to obtain quaternized chitosan; Step S2: adding sodium hydroxide and quaternized chitosan to deionized water to obtain a chitosan reaction solution; adding zinc acetate to deionized water to obtain a zinc acetate reaction solution; adding the chitosan reaction solution dropwise to the zinc acetate reaction solution, and hydrothermally reacting at 90-95° C. for 5-6 hours. After the reaction is completed, cooling, adjusting the pH to 7.3-7.5, standing, centrifuging, washing, and drying to obtain zinc oxide-coated quaternized chitosan; Step S3: adding γ-methacryloxypropyltrimethoxysilane to an ethanol-water solvent, stirring thoroughly for 20-30 minutes, then adding zinc oxide-coated quaternized chitosan, ultrasonically dispersing for 40-50 minutes, and after uniform dispersion, reflux reaction at 85-87° C. for 3-4 hours. After the reaction is completed, cooling, washing, and drying are performed to obtain modified chitosan.

5. The method for preparing a highly breathable antibacterial lining cloth according to claim 4, characterized in that: The volume ratio of ethanol to deionized water in the ethanol-water solvent is (3.0-3.5):1; the reaction mass ratio of chitosan and 2,3-epoxypropyltrimethylammonium chloride is 1:(3.5-4.0); the reaction mass ratio of sodium hydroxide, quaternized chitosan, and zinc acetate is 4:(1.3-1.5):2.5; and the reaction mass ratio of γ-methacryloyloxypropyltrimethoxysilane and zinc oxide-coated quaternized chitosan is (0.8-1.0):

10.

6. The method for preparing a highly breathable antibacterial lining cloth according to claim 1, characterized in that: The preparation process of modified silver-loaded titanium dioxide is as follows: Step S1: adding titanium dioxide nanotubes to ethylene glycol, adjusting the pH to 8.0-8.5, and ultrasonically dispersing for 30-40 minutes. Then, adding 0.04-0.05 mol / L silver nitrate ethanol solution, and continuing ultrasonically dispersing for 15-20 minutes. After uniform dispersion, reacting in a water bath at 50-55° C. for 9-10 hours. After the reaction is completed, cooling, centrifuging, washing, and drying are performed to obtain silver-loaded titanium dioxide; Step S2: adding silver-loaded titanium dioxide to 1.5-2.0 mol / L hydrochloric acid, ultrasonically dispersing for 30-40 minutes, stirring and reacting at 25-30° C. for 3-4 hours after uniform dispersion, washing and drying after completion of the reaction to obtain pretreated silver-loaded titanium dioxide; adding γ-methacryloxypropyltrimethoxysilane to an ethanol-water solvent, stirring thoroughly for 20-30 minutes, then adding the pretreated silver-loaded titanium dioxide, ultrasonically dispersing for 40-50 minutes, uniformly dispersing, reflux reacting at 85-87° C. for 6-7 hours, cooling, washing, and drying after completion of the reaction to obtain modified silver-loaded titanium dioxide.

7. The method for preparing a highly breathable antibacterial lining cloth according to claim 6, characterized in that: The mass volume ratio of titanium dioxide nanotubes, ethylene glycol, and silver nitrate ethanol solution is 1g:100mL:(25-30)mL; the reaction mass ratio of γ-methacryloxypropyltrimethoxysilane and pretreated silver-loaded titanium dioxide is (0.6-0.8):

10.

8. The method for preparing a highly breathable antibacterial lining cloth according to claim 1, characterized in that: The preparation process of modified lignin is as follows: Step S1: adding lignin to a 6.0-6.3 mol / L sodium hydroxide solution to obtain a lignin reaction solution; adding 3-chloro-2-hydroxypropyl-trimethylammonium chloride to deionized water to obtain a quaternary ammonium salt reaction solution; adding the quaternary ammonium salt reaction solution dropwise to the lignin reaction solution, continuing the reaction for 20-30 minutes, and then continuing to add a 6.0-6.3 mol / L sodium hydroxide solution, stirring and reacting at 85-90° C. for 5-6 hours. After the reaction is completed, freeze-drying, washing, and drying are performed to obtain quaternized lignin; Step S2: adding sodium hydroxide and quaternized lignin to deionized water to obtain a lignin reaction solution; adding zinc acetate to deionized water to obtain a zinc acetate reaction solution; adding the lignin reaction solution dropwise to the zinc acetate reaction solution, hydrothermally reacting at 90-95° C. for 5-6 hours, cooling after the reaction, adjusting the pH to 7.3-7.5, standing, centrifuging, washing, and drying to obtain zinc oxide-coated quaternized lignin; Step S3: adding γ-methacryloxypropyltrimethoxysilane to an ethanol-water solvent, stirring thoroughly for 20-30 minutes, then adding zinc oxide-coated quaternized lignin, ultrasonically dispersing for 40-50 minutes, and after uniform dispersion, reflux reaction at 85-87° C. for 3-4 hours. After the reaction is completed, cooling, washing, and drying are performed to obtain modified lignin.

9. The method for preparing a highly breathable antibacterial lining cloth according to claim 8, characterized in that: The volume ratio of ethanol to deionized water in the ethanol-water solvent is (3.0-3.5):1; the reaction mass ratio of lignin and 3-chloro-2-hydroxypropyl-trimethylammonium chloride is 7:(6.0-6.2); the reaction mass ratio of sodium hydroxide, quaternized lignin, and zinc acetate is 4:(1.1-1.2):2.5; and the reaction mass ratio of γ-methacryloyloxypropyltrimethoxysilane and zinc oxide-coated quaternized lignin is (0.8-1.0):

10.

10. A highly breathable antibacterial lining cloth, characterized in that: Prepared according to the preparation method according to any one of claims 1 to 9.