Waterproof jacquard decorative wallpaper and preparation process thereof

Abstract

The invention discloses waterproof jacquard decorative wallpaper and a preparation technology thereof, and relates to the technical field of waterproof material preparation, and the preparation technology comprises the following steps: taking modified bamboo fiber and polyhydroxyalkanoate as raw materials, and carrying out wet-process web forming to prepare a non-woven fabric base layer; the preparation method comprises the following steps: weaving polyester fibers serving as a raw material, then immersing the polyester fibers into a sodium hydroxide solution containing N-(beta-aminoethyl)-gamma-aminopropyltrimethoxysilane, heating to react, washing and drying to obtain a jacquard layer; uniformly mixing an ethylene-vinyl acetate copolymer, the modified mesoporous silica, hydrogenated rosin glyceride and an antioxidant to obtain a modified hot melt adhesive; coating the modified hot melt adhesive between the non-woven fabric base layer and the jacquard layer, performing hot-pressing compounding, cooling and sizing to obtain the jacquard wallpaper, the preparation method comprises the following steps: compounding fluoride-free waterproof finishing liquid containing modified polyurethane emulsion, a sealing agent and an auxiliary agent on jacquard wallpaper by a padding method, drying, and baking at high temperature to obtain the waterproof jacquard decorative wallpaper.

Description

Technical Field

[0001] This invention relates to the field of waterproof material preparation technology, specifically a waterproof jacquard decorative wallpaper and its preparation process. Background Technology

[0002] Wallpaper, also known as wall covering, is a popular interior decoration material due to its wide variety of styles, short installation time, ease of replacement, and combination of aesthetics and practicality. However, existing wallpapers also face several problems. For example, over long-term use, they are prone to the growth of bacteria, mold, and other harmful microorganisms. High indoor humidity levels further create a breeding ground for these microorganisms, which can negatively impact human health. Furthermore, prolonged exposure to moisture can cause wallpaper to bubble and curl at the edges, affecting the aesthetics of the interior decoration. Therefore, there is an urgent need to improve the waterproof performance of wallpaper materials.

[0003] Therefore, inventing a waterproof jacquard decorative wallpaper and its preparation process is of great significance. Summary of the Invention

[0004] The purpose of this invention is to provide a waterproof jacquard decorative wallpaper and its preparation process to solve the problems raised in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A waterproof jacquard decorative wallpaper and its preparation process, comprising the following steps:

[0007] S1: A nonwoven base layer is prepared by wet web forming using modified bamboo fiber and polyhydroxy fatty acid ester as raw materials;

[0008] S2: Polyester fiber is woven and then immersed in a sodium hydroxide solution containing N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane. The mixture is heated to react, washed and dried to obtain the jacquard layer.

[0009] S3: Mix ethylene-vinyl acetate copolymer, modified mesoporous silica, hydrogenated rosin glycerol ester, and antioxidant to obtain modified hot melt adhesive;

[0010] S4: Apply modified hot melt adhesive between the non-woven base layer and the jacquard layer, hot press and laminate, cool and set to obtain jacquard wallpaper;

[0011] S5: A fluorine-free waterproof finishing liquid containing modified polyurethane emulsion, sealant and additives is applied to jacquard wallpaper by padding, followed by drying and high-temperature baking to obtain waterproof jacquard decorative wallpaper.

[0012] The modified bamboo fiber was prepared from bamboo fiber modified with graphene oxide.

[0013] The modified mesoporous silica is made from ammonium hydroxide, dopamine hydrochloride, ethanol, mesoporous silica, and deionized water.

[0014] The modified polyurethane emulsion is made from polybutylene adipate, castor oil, isophorone diisocyanate, glyceryl monolaurate, acetone, N-tert-butyldiethanolamine, acetic acid, and deionized water.

[0015] The blocking agent is made from toluene-2,4-diisocyanate, acetone, acetylacetone, and dibutyltin dilaurate catalyst.

[0016] Further, in step S1, the mass ratio of modified bamboo fiber to polyhydroxyalkanoate is (20-30):(70-80).

[0017] Further, in step S1, the preparation method of the modified bamboo fiber is as follows: bamboo powder is mixed with pure water, the precipitate is collected by standing, and dried at 90-110℃ for 36-48h to obtain bamboo fiber; graphene oxide is added to pure water, ultrasonically mixed, and then bamboo fiber is soaked in it. After 1-2h, the water is drained and dried to obtain modified bamboo fiber.

[0018] The modified bamboo fiber comprises the following components, by weight: 1-3 parts bamboo powder, 8-12 parts pure water, 2-3.5 parts graphene oxide, and 1-3 parts bamboo fiber.

[0019] Further, in step S2, the mass ratio of N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane to sodium hydroxide is (1-3):(4-6), the reaction temperature is 40-60℃, and the reaction time is 1-2h.

[0020] Further, in step S3, the antioxidant is tris(2,4-di-tert-butylphenyl) phosphite and pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]. In the preparation of the modified hot melt adhesive, the mass ratio of ethylene-vinyl acetate copolymer, modified mesoporous silica, hydrogenated rosin glycerol ester, tris(2,4-di-tert-butylphenyl) phosphite and pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate] is 100:(5-10):(15-20):(0.2-0.3):(0.3-0.4).

[0021] Further, in step S3, the preparation method of the modified mesoporous silica is as follows: ammonium hydroxide, dopamine hydrochloride, and ethanol are added to deionized water and mixed, then mesoporous silica is added, ultrasonically mixed, reacted at room temperature in the dark for 6-10 hours, washed and dried to obtain modified mesoporous silica.

[0022] The modified mesoporous silica comprises the following components, by weight: 0.5-1 parts ammonium hydroxide, 1-3 parts dopamine hydrochloride, 8-12 parts ethanol, and 10-15 parts mesoporous silica.

[0023] Further, in step S5, the mass ratio of the modified polyurethane emulsion, the sealant, and the additive is (80-90):(6-15):(4-5); the additive is dodecyl dimethyl betaine and BYK-024 defoamer, and the mass ratio of dodecyl dimethyl betaine to BYK-024 defoamer is (2-5):(0.3-1).

[0024] Further, in step S5, the preparation method of the sealing agent is as follows: under nitrogen protection, toluene-2,4-diisocyanate is added to acetone, the temperature is raised to 40-60℃, acetylacetone is slowly added dropwise, the temperature is maintained, and then dibutyltin dilaurate catalyst is added. The reaction is carried out at 60-80℃ for 2-4 hours to obtain the sealing agent.

[0025] The modified blocking agent comprises the following components, by weight: 50-100 parts toluene-2,4-diisocyanate, 10-20 parts acetone, 110-120 parts acetylacetone, and 0.05-0.1 parts dibutyltin dilaurate catalyst.

[0026] 11. Further, in step S5, the modified polyurethane emulsion is prepared as follows: Polybutylene adipate and castor oil are placed in a vacuum drying oven at 100-120℃ for 1-3 hours to dehydrate, then isophorone diisocyanate is added, and the mixture is heated to 70-80℃ for 1-3 hours. After the reaction is completed, glyceryl monolaurate and acetone are added, and the mixture is kept at 60-80℃ for 1-3 hours. After the reaction is completed, N-tert-butyldiethanolamine is added, and the mixture is kept at 60-80℃ for 1-3 hours. After the reaction temperature drops to 35-45℃, acetic acid is added to neutralize the reaction for 20-40 minutes. Finally, deionized water is added, and the mixture is stirred at high speed to obtain the modified polyurethane emulsion.

[0027] The modified polyurethane emulsion comprises the following components, by weight: 20-30 parts polybutylene adipate, 5-10 parts castor oil, 10-20 parts isophorone diisocyanate, 1.5-2.5 parts glyceryl monolaurate, 10-20 parts acetone, 1-2 parts N-tert-butyldiethanolamine, and 1.5-2.5 parts acetic acid.

[0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029] 1. The nonwoven fabric base layer of this invention incorporates modified bamboo fiber and polyhydroxyalkanoates. The oxygen-containing groups on the surface of graphene oxide not only form chemical bonds with the active groups on the bamboo fiber surface but also interact with the ester groups of the polyhydroxyalkanoates, improving the compatibility between bamboo fiber and polyhydroxyalkanoates, thereby enhancing the interfacial bonding force between them. Simultaneously, graphene oxide increases the surface roughness of the bamboo fiber, increasing the specific surface area of ​​the nonwoven fabric base layer. This facilitates the penetration of modified hot melt adhesive and fluorine-free waterproof finishing liquid into the porous structure of the nonwoven fabric base layer, thereby improving the wallpaper's hydrophobicity and lifespan. Furthermore, bamboo fiber inhibits mold growth, and the sharp edge structure of graphene oxide effectively disrupts the cell membranes of microorganisms such as Escherichia coli and Staphylococcus aureus, providing the nonwoven fabric base layer with a dual antibacterial barrier. This reduces the growth of harmful microorganisms in the hot melt adhesive within the pores of the nonwoven fabric base layer, thus extending the wallpaper's lifespan in humid environments.

[0030] 2. The modified hot melt adhesive of this invention incorporates mesoporous silica loaded with polydopamine. The catechol groups on polydopamine possess both hydrophobic and strong adhesive properties. Loading them onto the surface of mesoporous silica helps to achieve uniform dispersion in the hot melt adhesive, not only improving the hydrophobicity of the hot melt adhesive but also promoting its distribution within the porous structure of the nonwoven fabric base layer and the jacquard layer, thus exerting a strong adhesive effect. Simultaneously, the catechol groups can disrupt microbial cell membranes, synergistically antibacterial with the nonwoven fabric base layer and extending the wallpaper's lifespan. Furthermore, the amino groups on polydopamine can form covalent bonds with the epoxy groups on the surface of graphene oxide during hot pressing, thereby improving the interfacial bonding between the nonwoven fabric base layer and the modified hot melt adhesive.

[0031] 3. In this invention, the jacquard layer is grafted with N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane, making the jacquard layer rich in amino groups. On the one hand, the amino groups on the jacquard layer form covalent bonds with the quinone groups on the polydopamine in the modified hot melt adhesive during the hot pressing process, making the modified hot melt adhesive adhere more firmly to the surface of the jacquard layer and reducing the risk of peeling between the nonwoven base layer and the jacquard layer. On the other hand, the amino groups on the jacquard layer react with the residual isocyanate in the polyurethane emulsion and the isocyanate released by the sealant at high temperature to form urea bonds, which improves the curing efficiency, promotes the coverage of the fluorine-free waterproof finishing liquid on the wallpaper surface, and improves the waterproof performance of the wallpaper.

[0032] 4. The modified polyurethane emulsion of this invention incorporates castor oil and glyceryl monolaurate. The hydroxy fatty acid chains on castor oil are hydrophobic, and the hydrophobic dodecyl groups on glyceryl monolaurate are orderly arranged in the polyurethane macromolecular chain. Together, they form a hydrophobic barrier on the surface of the nonwoven fabric base layer, improving the wallpaper's waterproof performance. Simultaneously, the lauric acid chains on glyceryl monolaurate can disrupt the integrity of microbial cell walls, synergistically exerting antibacterial activity with the nonwoven fabric base layer, thus giving the wallpaper excellent antibacterial properties. Furthermore, the carboxyl groups on the surface of graphene oxide enhance the self-emulsifying ability of the modified polyurethane emulsion, promoting its penetration into the pores of the nonwoven fabric base layer, thereby improving the hydrophobicity of the nonwoven fabric base layer. Finally, the tertiary amine groups on N-tert-butyldiethanolamine possess autocatalytic activity, promoting the cross-linking of residual isocyanate groups at high temperatures, improving curing efficiency, and facilitating the coating of the modified polyurethane emulsion onto the wallpaper surface. Detailed Implementation

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] In the following examples, the bamboo powder was 60-80 mesh; the polyhydroxyalkanoate had a molecular weight of 750,000; the mesoporous silica was SBA-15, CAS number 7631-86-9, with a pore size of 6-10 nm; the ethylene-vinyl acetate copolymer had a CAS number of 24937-78-8; dopamine hydrochloride had a CAS number of 62-31-7; tris(2,4-di-tert-butylphenyl)phosphite had a CAS number of 31570-04-4; pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate] had a CAS number of 6683-19-8; polybutylene adipate had a CAS number of 24937-93-7; castor oil had a CAS number of 8001-79-4; isophorone diisocyanate had a CAS number of 4098-71-9; and acetone... The CAS numbers for the following are listed: 67-64-1; 2160-93-2 for N-tert-butyldiethanolamine; 64-19-7 for acetic acid; 584-84-9 for toluene-2,4-diisocyanate; 123-54-6 for acetylacetone; 105124-36-5 for dibutyltin dilaurate; 683-10-3 for dodecyl dimethyl betaine; 40738-26-9 for glyceryl monolaurate; 65997-13-9 for hydrogenated rosin glycerol; 1760-24-3 for N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane; 64-17-5 for ethanol; and 1336-21-6 for ammonium hydroxide.

[0035] Example 1: Preparation process of a waterproof jacquard decorative wallpaper: S1: Take 1 part bamboo powder and 10 parts pure water, mix them evenly, let stand for a period of time, collect the lower sediment, and dry it in an oven at 100℃ for 48 hours to obtain bamboo fiber; add 2 parts graphene oxide to pure water, mix it ultrasonically for 20 minutes, then soak 1 part bamboo fiber in it, drain the water and dry it after 1 hour to obtain modified bamboo fiber;

[0036] S2: Mix 20 parts of modified bamboo fiber, 70 parts of polyhydroxy fatty acid ester and water together, decompose with a slurry decomposition machine for 10 minutes, collect the slurry and form it into a web by wet process to obtain the non-woven fabric base layer;

[0037] S3: Polyester fiber is woven and then immersed in a deionized aqueous solution containing 1 part N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane and 4 parts sodium hydroxide. The immersion temperature is 40℃ and the time is 2h. After washing and drying, the jacquard layer is obtained.

[0038] S4: Add 0.5 parts ammonium hydroxide, 1 part dopamine hydrochloride and 8 parts ethanol to deionized water and mix well. Then add 10 parts mesoporous silica, mix well by ultrasonication, react at room temperature in the dark for 8 hours, wash and dry to obtain modified mesoporous silica.

[0039] S5: Heat 100 parts of ethylene-vinyl acetate copolymer to 160℃, then add 5 parts of modified mesoporous silica, 15 parts of hydrogenated rosin glycerol ester, 0.2 parts of tris(2,4-di-tert-butylphenyl) phosphite and 0.3 parts of pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate], stir and mix for 10-15 min to obtain modified hot melt adhesive;

[0040] S6: Apply modified hot melt adhesive between the non-woven base layer and the jacquard layer, pressurize and laminate at 100℃, cool and set at 40℃ to obtain jacquard wallpaper;

[0041] S7: Place 20 parts of polybutylene adipate and 5 parts of castor oil in a vacuum drying oven at 110℃ for 2 hours to dehydrate. Then add 10 parts of isophorone diisocyanate and heat to 75℃ for 2 hours. After the reaction is complete, add 1.5 parts of glyceryl monolaurate and 10 parts of acetone and react at 70℃ for 2 hours. After the reaction is complete, add 1 part of N-tert-butyldiethanolamine and react at 70℃ for 2 hours. After the reaction temperature drops to 40℃, add 1.5 parts of acetic acid to neutralize the reaction for 30 minutes. Finally, add deionized water and stir at high speed to obtain a modified polyurethane emulsion.

[0042] S8: Under nitrogen protection, 50 parts of toluene-2,4-diisocyanate were added to 15 parts of acetone, the temperature was raised to 50°C, 110 parts of acetylacetone were slowly added dropwise, the temperature was maintained, and then 0.05 parts of dibutyltin dilaurate catalyst were added. The reaction was carried out at 70°C for 2 hours to obtain the blocking agent.

[0043] S9: Add the modified polyurethane emulsion to the sealant, stir and mix well, then add 2 parts of an aqueous solution containing dodecyl dimethyl betaine and 0.3 parts of BYK-024 defoamer to obtain the finishing liquid; apply the finishing liquid to the jacquard wallpaper by padding process, dry and bake at high temperature to obtain waterproof jacquard wallpaper.

[0044] Example 2: Preparation process of a waterproof jacquard decorative wallpaper: S1: Take 1 part bamboo powder and 10 parts pure water, mix them evenly, let stand for a period of time, collect the lower sediment, and dry it in an oven at 100℃ for 48 hours to obtain bamboo fiber; add 2.8 parts graphene oxide to pure water, mix it ultrasonically for 20 minutes, then soak 1 part bamboo fiber in it, drain the water and dry it after 1 hour to obtain modified bamboo fiber;

[0045] S2: Mix 25 parts of modified bamboo fiber, 75 parts of polyhydroxy fatty acid ester and water together, decompose with a slurry decomposition machine for 10 minutes, collect the slurry and form it into a web by wet process to obtain the non-woven fabric base layer.

[0046] S3: Polyester fiber is woven and then immersed in a deionized aqueous solution containing 2 parts N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane and 5 parts sodium hydroxide. The immersion temperature is 40℃ and the time is 2h. After washing and drying, the jacquard layer is obtained.

[0047] S4: Add 0.5 parts ammonium hydroxide, 1 part dopamine hydrochloride and 8 parts ethanol to deionized water and mix well. Then add 10 parts mesoporous silica, mix well by ultrasonication, react at room temperature in the dark for 8 hours, wash and dry to obtain modified mesoporous silica.

[0048] S5: Heat 100 parts of ethylene-vinyl acetate copolymer to 160℃, then add 5 parts of modified mesoporous silica, 15 parts of hydrogenated rosin glycerol ester, 0.2 parts of tris(2,4-di-tert-butylphenyl) phosphite and 0.3 parts of pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate], stir and mix for 10-15 min to obtain modified hot melt adhesive;

[0049] S6: Apply modified hot melt adhesive between the non-woven base layer and the jacquard layer, pressurize and laminate at 100℃, cool and set at 40℃ to obtain jacquard wallpaper;

[0050] S7: Place 20 parts of polybutylene adipate and 5 parts of castor oil in a vacuum drying oven at 110℃ for 2 hours to dehydrate. Then add 10 parts of isophorone diisocyanate and heat to 75℃ for 2 hours. After the reaction is complete, add 1.5 parts of glyceryl monolaurate and 10 parts of acetone and react at 70℃ for 2 hours. After the reaction is complete, add 1 part of N-tert-butyldiethanolamine and react at 70℃ for 2 hours. After the reaction temperature drops to 40℃, add 1.5 parts of acetic acid to neutralize the reaction for 30 minutes. Finally, add deionized water and stir at high speed to obtain a modified polyurethane emulsion.

[0051] S8: Under nitrogen protection, 50 parts of toluene-2,4-diisocyanate were added to 15 parts of acetone, the temperature was raised to 50°C, 110 parts of acetylacetone were slowly added dropwise, the temperature was maintained, and then 0.05 parts of dibutyltin dilaurate catalyst were added. The reaction was carried out at 70°C for 2 hours to obtain the blocking agent.

[0052] S9: Add the modified polyurethane emulsion to the sealant, stir and mix well, then add 2 parts of an aqueous solution containing dodecyl dimethyl betaine and 0.3 parts of BYK-024 defoamer to obtain the finishing liquid; apply the finishing liquid to the jacquard wallpaper by padding process, dry and bake at high temperature to obtain waterproof jacquard wallpaper.

[0053] Example 3: Preparation process of a waterproof jacquard decorative wallpaper: S1: Take 1 part bamboo powder and 10 parts pure water, mix them evenly, let stand for a period of time, collect the lower sediment, and dry it in an oven at 100℃ for 48 hours to obtain bamboo fiber; add 3.5 parts graphene oxide to pure water, mix it ultrasonically for 20 minutes, then soak 1 part bamboo fiber in it, drain the water and dry it after 1 hour to obtain modified bamboo fiber;

[0054] S2: Mix 30 parts of modified bamboo fiber, 80 parts of polyhydroxy fatty acid ester and water together, decompose with a slurry decomposition machine for 10 minutes, collect the slurry and form it into a web by wet process to obtain the non-woven fabric base layer.

[0055] S3: Polyester fiber is woven and then immersed in a deionized aqueous solution containing 3 parts N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane and 6 parts sodium hydroxide at 40°C for 2 hours. After washing and drying, the jacquard layer is obtained.

[0056] S4: Add 0.5 parts ammonium hydroxide, 1 part dopamine hydrochloride and 8 parts ethanol to deionized water and mix well. Then add 10 parts mesoporous silica, mix well by ultrasonication, react at room temperature in the dark for 8 hours, wash and dry to obtain modified mesoporous silica.

[0057] S5: Heat 100 parts of ethylene-vinyl acetate copolymer to 160℃, then add 5 parts of modified mesoporous silica, 15 parts of hydrogenated rosin glycerol ester, 0.2 parts of tris(2,4-di-tert-butylphenyl) phosphite and 0.3 parts of pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate], stir and mix for 10-15 min to obtain modified hot melt adhesive;

[0058] S6: Apply modified hot melt adhesive between the non-woven base layer and the jacquard layer, pressurize and laminate at 100℃, cool and set at 40℃ to obtain jacquard wallpaper;

[0059] S7: Place 20 parts of polybutylene adipate and 5 parts of castor oil in a vacuum drying oven at 110℃ for 2 hours to dehydrate. Then add 10 parts of isophorone diisocyanate and heat to 75℃ for 2 hours. After the reaction is complete, add 1.5 parts of glyceryl monolaurate and 10 parts of acetone and react at 70℃ for 2 hours. After the reaction is complete, add 1 part of N-tert-butyldiethanolamine and react at 70℃ for 2 hours. After the reaction temperature drops to 40℃, add 1.5 parts of acetic acid to neutralize the reaction for 30 minutes. Finally, add deionized water and stir at high speed to obtain a modified polyurethane emulsion.

[0060] S8: Under nitrogen protection, 50 parts of toluene-2,4-diisocyanate were added to 15 parts of acetone, the temperature was raised to 50°C, 110 parts of acetylacetone were slowly added dropwise, the temperature was maintained, and then 0.05 parts of dibutyltin dilaurate catalyst were added. The reaction was carried out at 70°C for 2 hours to obtain the blocking agent.

[0061] S9: Add the modified polyurethane emulsion to the sealant, stir and mix well, then add 2 parts of an aqueous solution containing dodecyl dimethyl betaine and 0.3 parts of BYK-024 defoamer to obtain the finishing liquid; apply the finishing liquid to the jacquard wallpaper by padding process, dry and bake at high temperature to obtain waterproof jacquard wallpaper.

[0062] Example 4: Preparation process of a waterproof jacquard decorative wallpaper: S1: Take 1 part bamboo powder and 10 parts pure water, mix them evenly, let stand for a period of time, collect the lower sediment, and dry it in an oven at 100℃ for 48 hours to obtain bamboo fiber; add 3.5 parts graphene oxide to pure water, mix it ultrasonically for 20 minutes, then soak 1 part bamboo fiber in it, drain the water and dry it after 1 hour to obtain modified bamboo fiber;

[0063] S2: Mix 30 parts of modified bamboo fiber, 80 parts of polyhydroxy fatty acid ester and water together, decompose with a slurry decomposition machine for 10 minutes, collect the slurry and form it into a web by wet process to obtain the non-woven fabric base layer.

[0064] S3: Polyester fiber is woven and then immersed in a deionized aqueous solution containing 3 parts N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane and 6 parts sodium hydroxide at 40°C for 2 hours. After washing and drying, the jacquard layer is obtained.

[0065] S4: Add 0.7 parts ammonium hydroxide, 2 parts dopamine hydrochloride, and 10 parts ethanol to deionized water and mix well. Then add 12 parts mesoporous silica, mix well by ultrasonication, react at room temperature in the dark for 8 hours, wash and dry to obtain modified mesoporous silica.

[0066] S5: Heat 100 parts of ethylene-vinyl acetate copolymer to 160℃, then add 7 parts of modified mesoporous silica, 17 parts of hydrogenated rosin glycerol ester, 0.25 parts of tris(2,4-di-tert-butylphenyl) phosphite and 0.35 parts of pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate], stir and mix for 10-15 min to obtain modified hot melt adhesive;

[0067] S6: Apply modified hot melt adhesive between the non-woven base layer and the jacquard layer, pressurize and laminate at 100℃, cool and set at 40℃ to obtain jacquard wallpaper;

[0068] S7: Place 20 parts of polybutylene adipate and 5 parts of castor oil in a vacuum drying oven at 110℃ for 2 hours to dehydrate. Then add 10 parts of isophorone diisocyanate and heat to 75℃ for 2 hours. After the reaction is complete, add 1.5 parts of glyceryl monolaurate and 10 parts of acetone and react at 70℃ for 2 hours. After the reaction is complete, add 1 part of N-tert-butyldiethanolamine and react at 70℃ for 2 hours. After the reaction temperature drops to 40℃, add 1.5 parts of acetic acid to neutralize the reaction for 30 minutes. Finally, add deionized water and stir at high speed to obtain a modified polyurethane emulsion.

[0069] S8: Under nitrogen protection, 50 parts of toluene-2,4-diisocyanate were added to 15 parts of acetone, the temperature was raised to 50°C, 110 parts of acetylacetone were slowly added dropwise, the temperature was maintained, and then 0.05 parts of dibutyltin dilaurate catalyst were added. The reaction was carried out at 70°C for 2 hours to obtain the blocking agent.

[0070] S9: Add the modified polyurethane emulsion to the sealant, stir and mix well, then add 2 parts of an aqueous solution containing dodecyl dimethyl betaine and 0.3 parts of BYK-024 defoamer to obtain the finishing liquid; apply the finishing liquid to the jacquard wallpaper by padding process, dry and bake at high temperature to obtain waterproof jacquard wallpaper.

[0071] Example 5: Preparation process of a waterproof jacquard decorative wallpaper: S1: Take 1 part bamboo powder and 10 parts pure water, mix them evenly, let stand for a period of time, collect the lower sediment, and dry it in an oven at 100℃ for 48 hours to obtain bamboo fiber; add 3.5 parts graphene oxide to pure water, mix it ultrasonically for 20 minutes, then soak 1 part bamboo fiber in it, drain the water and dry it after 1 hour to obtain modified bamboo fiber;

[0072] S2: Mix 30 parts of modified bamboo fiber, 80 parts of polyhydroxy fatty acid ester and water together, decompose with a slurry decomposition machine for 10 minutes, collect the slurry and form it into a web by wet process to obtain the non-woven fabric base layer.

[0073] S3: Polyester fiber is woven and then immersed in a deionized aqueous solution containing 3 parts N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane and 6 parts sodium hydroxide at 40°C for 2 hours. After washing and drying, the jacquard layer is obtained.

[0074] S4: Add 1 part ammonium hydroxide, 3 parts dopamine hydrochloride and 12 parts ethanol to deionized water and mix well. Then add 15 parts mesoporous silica, mix well by ultrasonication, react at room temperature in the dark for 8 hours, wash and dry to obtain modified mesoporous silica.

[0075] S5: Heat 100 parts of ethylene-vinyl acetate copolymer to 160℃, then add 10 parts of modified mesoporous silica, 20 parts of hydrogenated rosin glycerol ester, 0.3 parts of tris(2,4-di-tert-butylphenyl) phosphite and 0.4 parts of pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate], stir and mix for 10-15 min to obtain modified hot melt adhesive;

[0076] S6: Apply modified hot melt adhesive between the non-woven base layer and the jacquard layer, pressurize and laminate at 100℃, cool and set at 40℃ to obtain jacquard wallpaper;

[0077] S7: Place 20 parts of polybutylene adipate and 5 parts of castor oil in a vacuum drying oven at 110℃ for 2 hours to dehydrate. Then add 10 parts of isophorone diisocyanate and heat to 75℃ for 2 hours. After the reaction is complete, add 1.5 parts of glyceryl monolaurate and 10 parts of acetone and react at 70℃ for 2 hours. After the reaction is complete, add 1 part of N-tert-butyldiethanolamine and react at 70℃ for 2 hours. After the reaction temperature drops to 40℃, add 1.5 parts of acetic acid to neutralize the reaction for 30 minutes. Finally, add deionized water and stir at high speed to obtain a modified polyurethane emulsion.

[0078] S8: Under nitrogen protection, 50 parts of toluene-2,4-diisocyanate were added to 15 parts of acetone, the temperature was raised to 50°C, 110 parts of acetylacetone were slowly added dropwise, the temperature was maintained, and then 0.05 parts of dibutyltin dilaurate catalyst were added. The reaction was carried out at 70°C for 2 hours to obtain the blocking agent.

[0079] S9: Add the modified polyurethane emulsion to the sealant, stir and mix well, then add 2 parts of an aqueous solution containing dodecyl dimethyl betaine and 0.3 parts of BYK-024 defoamer to obtain the finishing liquid; apply the finishing liquid to the jacquard wallpaper by padding process, dry and bake at high temperature to obtain waterproof jacquard wallpaper.

[0080] Example 6: Preparation process of a waterproof jacquard decorative wallpaper: S1: Take 1 part bamboo powder and 10 parts pure water, mix them evenly, let stand for a period of time, collect the lower sediment, and dry it in an oven at 100℃ for 48 hours to obtain bamboo fiber; add 3.5 parts graphene oxide to pure water, mix it ultrasonically for 20 minutes, then soak 1 part bamboo fiber in it, drain the water and dry it after 1 hour to obtain modified bamboo fiber;

[0081] S2: Mix 30 parts of modified bamboo fiber, 80 parts of polyhydroxy fatty acid ester and water together, decompose with a slurry decomposition machine for 10 minutes, collect the slurry and form it into a web by wet process to obtain the non-woven fabric base layer.

[0082] S3: Polyester fiber is woven and then immersed in a deionized aqueous solution containing 3 parts N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane and 6 parts sodium hydroxide at 40°C for 2 hours. After washing and drying, the jacquard layer is obtained.

[0083] S4: Add 1 part ammonium hydroxide, 3 parts dopamine hydrochloride and 12 parts ethanol to deionized water and mix well. Then add 15 parts mesoporous silica, mix well by ultrasonication, react at room temperature in the dark for 8 hours, wash and dry to obtain modified mesoporous silica.

[0084] S5: Heat 100 parts of ethylene-vinyl acetate copolymer to 160℃, then add 10 parts of modified mesoporous silica, 20 parts of hydrogenated rosin glycerol ester, 0.3 parts of tris(2,4-di-tert-butylphenyl) phosphite and 0.4 parts of pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate], stir and mix for 10-15 min to obtain modified hot melt adhesive;

[0085] S6: Apply modified hot melt adhesive between the non-woven base layer and the jacquard layer, pressurize and laminate at 100℃, cool and set at 40℃ to obtain jacquard wallpaper;

[0086] S7: 25 parts of polybutylene adipate and 8 parts of castor oil were placed in a vacuum drying oven at 110℃ for 2 hours to dehydrate. Then, 15 parts of isophorone diisocyanate were added, and the mixture was heated to 75℃ for 2 hours. After the reaction was completed, 2 parts of glyceryl monolaurate and 15 parts of acetone were added, and the mixture was kept at 70℃ for 2 hours. After the reaction was completed, 1.5 parts of N-tert-butyldiethanolamine were added, and the mixture was kept at 70℃ for 2 hours. After the reaction temperature dropped to 40℃, 2 parts of acetic acid were added to neutralize the reaction for 30 minutes. Finally, deionized water was added, and the mixture was stirred at high speed to obtain a modified polyurethane emulsion.

[0087] S8: Under nitrogen protection, 75 parts of toluene-2,4-diisocyanate were added to 15 parts of acetone, the temperature was raised to 50°C, 115 parts of acetylacetone were slowly added dropwise, the temperature was maintained, and then 0.07 parts of dibutyltin dilaurate catalyst were added. The reaction was carried out at 70°C for 2 hours to obtain the blocking agent.

[0088] S9: Add the modified polyurethane emulsion to the sealant, stir and mix well, then add 3.5 parts of an aqueous solution containing dodecyl dimethyl betaine and 0.7 parts of BYK-024 defoamer to obtain the finishing liquid; apply the finishing liquid to the jacquard wallpaper by padding process, dry and bake at high temperature to obtain waterproof jacquard wallpaper.

[0089] Example 7: Preparation process of a waterproof jacquard decorative wallpaper: S1: Take 1 part bamboo powder and 10 parts pure water, mix them evenly, let stand for a period of time, collect the lower sediment, and dry it in an oven at 100℃ for 48 hours to obtain bamboo fiber; add 3.5 parts graphene oxide to pure water, mix it ultrasonically for 20 minutes, then soak 1 part bamboo fiber in it, drain the water and dry it after 1 hour to obtain modified bamboo fiber;

[0090] S2: Mix 30 parts of modified bamboo fiber, 80 parts of polyhydroxy fatty acid ester and water together, decompose with a slurry decomposition machine for 10 minutes, collect the slurry and form it into a web by wet process to obtain the non-woven fabric base layer.

[0091] S3: Polyester fiber is woven and then immersed in a deionized aqueous solution containing 3 parts N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane and 6 parts sodium hydroxide at 40°C for 2 hours. After washing and drying, the jacquard layer is obtained.

[0092] S4: Add 1 part ammonium hydroxide, 3 parts dopamine hydrochloride and 12 parts ethanol to deionized water and mix well. Then add 15 parts mesoporous silica, mix well by ultrasonication, react at room temperature in the dark for 8 hours, wash and dry to obtain modified mesoporous silica.

[0093] S5: Heat 100 parts of ethylene-vinyl acetate copolymer to 160℃, then add 10 parts of modified mesoporous silica, 20 parts of hydrogenated rosin glycerol ester, 0.3 parts of tris(2,4-di-tert-butylphenyl) phosphite and 0.4 parts of pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate], stir and mix for 10-15 min to obtain modified hot melt adhesive;

[0094] S6: Apply modified hot melt adhesive between the non-woven base layer and the jacquard layer, pressurize and laminate at 100℃, cool and set at 40℃ to obtain jacquard wallpaper;

[0095] S7: 30 parts of polybutylene adipate and 10 parts of castor oil were placed in a vacuum drying oven at 110℃ for 2 hours to dehydrate. Then, 20 parts of isophorone diisocyanate were added, and the mixture was heated to 75℃ for 2 hours. After the reaction was completed, 2.5 parts of glyceryl monolaurate and 20 parts of acetone were added, and the mixture was kept at 70℃ for 2 hours. After the reaction was completed, 2 parts of N-tert-butyldiethanolamine were added, and the mixture was kept at 70℃ for 2 hours. After the reaction temperature dropped to 40℃, 2.5 parts of acetic acid were added to neutralize the reaction for 30 minutes. Finally, deionized water was added, and the mixture was stirred at high speed to obtain a modified polyurethane emulsion.

[0096] S8: Under nitrogen protection, 100 parts of toluene-2,4-diisocyanate were added to 15 parts of acetone, the temperature was raised to 50°C, 120 parts of acetylacetone were slowly added dropwise, the temperature was maintained, and then 0.1 parts of dibutyltin dilaurate catalyst were added. The reaction was carried out at 70°C for 2 hours to obtain the blocking agent.

[0097] S9: Add the modified polyurethane emulsion to the sealant, stir and mix well, then add 5 parts of an aqueous solution containing dodecyl dimethyl betaine and 1 part of BYK-024 defoamer to obtain the finishing liquid; apply the finishing liquid to the jacquard wallpaper by padding process, dry and bake at high temperature to obtain waterproof jacquard wallpaper.

[0098] Comparative Example 1: Preparation process of a waterproof jacquard decorative wallpaper: S1: Take 1 part bamboo powder and 10 parts pure water, mix them evenly, let stand for a period of time, collect the lower sediment, and dry it in an oven at 100℃ for 48 hours to obtain bamboo fiber.

[0099] S2: Mix 30 parts bamboo fiber, 80 parts polyhydroxy fatty acid ester and water together, decompose with a slurry decomposition machine for 10 minutes, collect the slurry and form it into a web by wet process to obtain the non-woven fabric base layer;

[0100] The remaining steps are the same as in Example 7.

[0101] Comparative Example 2: Preparation process of a waterproof jacquard decorative wallpaper: S3: Polyester fiber is woven as raw material, and then immersed in a deionized water solution containing 40 parts of N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane and 6 parts of sodium hydroxide. The immersion temperature is 40℃ and the time is 2h. After washing and drying, the jacquard layer is obtained.

[0102] The remaining steps are the same as in Example 7.

[0103] Comparative Example 3: A preparation process for a waterproof jacquard decorative wallpaper: the mesoporous silica was not modified, i.e., step S4 was not performed;

[0104] S5: Heat 100 parts of ethylene-vinyl acetate copolymer to 160℃, then add 10 parts of mesoporous silica, 20 parts of hydrogenated rosin glycerol ester, 0.3 parts of tris(2,4-di-tert-butylphenyl) phosphite and 0.4 parts of pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate], stir and mix for 10-15 min to obtain modified hot melt adhesive;

[0105] The remaining steps are the same as in Example 7.

[0106] Comparative Example 4: Preparation process of a waterproof jacquard decorative wallpaper: S7: 30 parts of polybutylene adipate were placed in a vacuum drying oven at 110℃ for 2 hours to dehydrate, then 20 parts of isophorone diisocyanate were added, and the mixture was heated to 75℃ for 2 hours. After the reaction was completed, 50 parts of glyceryl monolaurate and 20 parts of acetone were added, and the mixture was kept at 70℃ for 2 hours. After the reaction was completed, 2 parts of N-tert-butyldiethanolamine were added, and the mixture was kept at 70℃ for 2 hours. After the reaction temperature dropped to 40℃, 2.5 parts of acetic acid were added to neutralize the reaction for 30 minutes. Finally, deionized water was added, and the mixture was stirred at high speed to obtain a modified polyurethane emulsion.

[0107] The remaining steps are the same as in Example 7.

[0108] Water resistance test: The test was conducted according to the BG / T 1766-95 standard. The wallpaper was immersed in 40℃ for 24 hours, and the changes in the appearance of the coating were observed.

[0109] Contact angle test: The wettability of the wallpaper to water was tested using an SL200D contact angle tester.

[0110] The experimental results are shown in Table 1 below.

[0111] Table 1 Performance Test Data of Jacquard Decorative Wallpaper

[0112]

[0113] Conclusion: The jacquard wallpaper prepared by adjusting the proportions of the nonwoven base layer, jacquard layer, hot melt adhesive, and polyurethane emulsion has excellent waterproof properties.

[0114] In Comparative Example 1, the bamboo fiber was not modified with graphene oxide, which reduced the compatibility between bamboo fiber and polyhydroxyalkanoates, thereby decreasing the interfacial bonding force. Furthermore, the reduced specific surface area of ​​the nonwoven fabric substrate allowed the modified hot melt adhesive and fluorine-free waterproofing finishing liquid to adhere to the substrate, thus reducing the wallpaper's hydrophobicity and lifespan. Simultaneously, the lack of a dual antibacterial barrier allowed mold and other microorganisms to easily proliferate in the polyhydroxyalkanoates in humid environments, reducing the antibacterial effect of the nonwoven fabric substrate and significantly shortening the wallpaper's lifespan in damp conditions.

[0115] In Comparative Example 2, the jacquard layer was modified with an excess of N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane. This caused the N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane to undergo intermolecular self-condensation, forming particles that blocked the fiber channels. This hindered the adhesion of hot melt adhesive and fluorine-free waterproof finishing liquid to the jacquard layer surface, increasing the risk of blistering and peeling. Simultaneously, excessive cross-linking with the jacquard layer reduced its toughness, thus increasing the wallpaper's brittleness. Furthermore, unreacted silanol groups increased their water absorption in humid environments, further reducing the wallpaper's waterproof performance.

[0116] In Comparative Example 3, the mesoporous silica was not modified. Due to the lack of catechol groups on polydopamine, the adhesion strength of the hot melt adhesive in humid environments was reduced. At the same time, the lack of amino and quinone groups reduced the interfacial bonding force between the hot melt adhesive and the non-woven base layer and jacquard layer, increasing the risk of peeling between the non-woven base layer and jacquard layer in the wallpaper, thereby reducing the service life of the wallpaper.

[0117] In Comparative Example 4, the absence of castor oil and the excessive use of glyceryl monolaurate resulted in a lack of castor oil in the synthesized polyurethane emulsion, reducing its hydrophobicity and thus decreasing the wallpaper's lifespan in humid environments. Excessive glyceryl monolaurate hindered molecular chain entanglement of the dodecyl carbon chain, leading to decreased tensile strength. Simultaneously, the hydrophobic dodecyl carbon chain competed with the hydrophilic carboxyl groups on the graphene oxide surface, reducing the adhesion of the fluorine-free waterproofing finishing liquid to the non-woven substrate, further impacting the wallpaper's lifespan.

[0118] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. A manufacturing process for a waterproof jacquard decorative wallpaper, characterized in that: Includes the following steps: S1: A nonwoven base layer is prepared by wet web forming using modified bamboo fiber and polyhydroxy fatty acid ester as raw materials; S2: Polyester fiber is woven and then immersed in a sodium hydroxide solution containing N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane. The mixture is heated to react, washed and dried to obtain the jacquard layer. S3: Mix ethylene-vinyl acetate copolymer, modified mesoporous silica, hydrogenated rosin glycerol ester, and antioxidant to obtain modified hot melt adhesive; S4: Apply modified hot melt adhesive between the non-woven base layer and the jacquard layer, hot press and laminate, cool and set to obtain jacquard wallpaper; S5: A fluorine-free waterproof finishing liquid containing modified polyurethane emulsion, sealant and additives is applied to jacquard wallpaper by padding, followed by drying and high-temperature baking to obtain waterproof jacquard decorative wallpaper. The modified bamboo fiber was prepared from bamboo fiber modified with graphene oxide. The modified mesoporous silica is made from ammonium hydroxide, dopamine hydrochloride, ethanol, mesoporous silica, and deionized water. The modified polyurethane emulsion is made from polybutylene adipate, castor oil, isophorone diisocyanate, glyceryl monolaurate, acetone, N-tert-butyldiethanolamine, acetic acid, and deionized water. The blocking agent is made from toluene-2,4-diisocyanate, acetone, acetylacetone, and dibutyltin dilaurate catalyst.

2. The preparation process of a waterproof jacquard decorative wallpaper according to claim 1, characterized in that: In step S1, the mass ratio of modified bamboo fiber to polyhydroxyalkanoate is (20-30):(70-80).

3. The preparation process of a waterproof jacquard decorative wallpaper according to claim 1, characterized in that: In step S1, the modified bamboo fiber is prepared as follows: bamboo powder is mixed with pure water, the precipitate is collected by standing, and dried at 90-110℃ for 36-48h to obtain bamboo fiber; graphene oxide is added to pure water, ultrasonically mixed, and then bamboo fiber is soaked in it. After 1-2h, the water is drained and dried to obtain modified bamboo fiber. The modified bamboo fiber comprises the following components, by weight: 1-3 parts bamboo powder, 8-12 parts pure water, 2-3.5 parts graphene oxide, and 1-3 parts bamboo fiber.

4. The preparation process of a waterproof jacquard decorative wallpaper according to claim 1, characterized in that: In step S2, the mass ratio of N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane to sodium hydroxide is (1-3):(4-6), the reaction temperature is 40-60℃, and the reaction time is 1-2h.

5. The preparation process of a waterproof jacquard decorative wallpaper according to claim 1, characterized in that: In step S3, the antioxidant is tris(2,4-di-tert-butylphenyl) phosphite and pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]. During the preparation of the modified hot melt adhesive, the mass ratio of ethylene-vinyl acetate copolymer, modified mesoporous silica, hydrogenated rosin glycerol ester, tris(2,4-di-tert-butylphenyl) phosphite and pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate] is 100:(5-10):(15-20):(0.2-0.3):(0.3-0.4).

6. The preparation process of a waterproof jacquard decorative wallpaper according to claim 1, characterized in that: In step S3, the modified mesoporous silica is prepared as follows: ammonium hydroxide, dopamine hydrochloride, and ethanol are added to deionized water and mixed, then mesoporous silica is added, ultrasonically mixed, and reacted at room temperature in the dark for 6-10 hours. After washing and drying, the modified mesoporous silica is obtained. The modified mesoporous silica comprises the following components, by weight: 0.5-1 parts ammonium hydroxide, 1-3 parts dopamine hydrochloride, 8-12 parts ethanol, and 10-15 parts mesoporous silica.

7. The preparation process of a waterproof jacquard decorative wallpaper according to claim 1, characterized in that: In step S5, the mass ratio of modified polyurethane emulsion, sealant and additive is (80-90):(6-15):(4-5); the additive is dodecyl dimethyl betaine and BYK-024 defoamer, and the mass ratio of dodecyl dimethyl betaine to BYK-024 defoamer is (2-5):(0.3-1).

8. The preparation process of a waterproof jacquard decorative wallpaper according to claim 1, characterized in that: In step S5, the preparation method of the sealing agent is as follows: under nitrogen protection, toluene-2,4-diisocyanate is added to acetone, the temperature is raised to 40-60℃, acetylacetone is slowly added dropwise, the temperature is maintained, and then dibutyltin dilaurate catalyst is added. The reaction is carried out at 60-80℃ for 2-4 hours to obtain the sealing agent. The modified blocking agent comprises the following components, by weight: 50-100 parts toluene-2,4-diisocyanate, 10-20 parts acetone, 110-120 parts acetylacetone, and 0.05-0.1 parts dibutyltin dilaurate catalyst.

9. The preparation process of a waterproof jacquard decorative wallpaper according to claim 1, characterized in that: In step S5, the modified polyurethane emulsion is prepared as follows: Polybutylene adipate and castor oil are placed in a vacuum drying oven at 100-120℃ for 1-3 hours to dehydrate. Then, isophorone diisocyanate is added, and the mixture is heated to 70-80℃ for 1-3 hours. After the reaction is completed, glyceryl monolaurate and acetone are added, and the mixture is kept at 60-80℃ for 1-3 hours. After the reaction is completed, N-tert-butyldiethanolamine is added, and the mixture is kept at 60-80℃ for 1-3 hours. After the reaction temperature drops to 35-45℃, acetic acid is added to neutralize the reaction for 20-40 minutes. Finally, deionized water is added, and the mixture is stirred at high speed to obtain the modified polyurethane emulsion. The modified polyurethane emulsion comprises the following components, by weight: 20-30 parts polybutylene adipate, 5-10 parts castor oil, 10-20 parts isophorone diisocyanate, 1.5-2.5 parts glyceryl monolaurate, 10-20 parts acetone, 1-2 parts N-tert-butyldiethanolamine, and 1.5-2.5 parts acetic acid.

10. The jacquard decorative wallpaper prepared according to any one of claims 1-9.

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