A chenille waterproof floor mat and its production process

Abstract

The invention relates to a chenille waterproof mat and a production process thereof. The modified base fabric used for the chenille waterproof mat is modified, that is, polyacrylic acid is used as an adhesive, and antibacterial water-absorbing microspheres are arranged in the base fabric to obtain a modified base fabric. The antibacterial water-absorbing microspheres have good water absorption and antibacterial properties, which ensure that the chenille waterproof mat can quickly absorb water and maintain the antibacterial property during use. The modified polyester is prepared and the modified polyester is used as a raw material to prepare the modified polyester filament, and the modified polyester filament is used as the decorative yarn of the chenille yarn. Since the modified polyester contains zwitterionic side chains, the chenille yarn itself has anti-fouling and antibacterial properties, and the hydrophilic property of the chenille yarn is improved, so that the chenille waterproof mat has good water absorption, antibacterial and anti-fouling properties.

Description

Technical Field

[0001] The present invention relates to the technical field of floor mats, and particularly relates to a chenille waterproof floor mat and its production process. Background Art

[0002] Chenille yarn is a decorative yarn that is vertically fed by a core yarn twisted by ring spinning. Under the action of the twist-back force, it is dispersed in a spiral shape to form a unique appearance. Chenille yarn is mostly used as a raw material for bathroom products. Currently, polyester is commonly used to manufacture bathroom products such as chenille floor mats.

[0003] Since most chenille floor mats are made of polyester, due to the nature of polyester itself, its moisture absorption performance is poor, and it will be in a humid environment for a long time, resulting in the surface of the floor mat being extremely prone to bacterial growth. At the same time, due to the special tufted structure of the chenille floor mat, it is extremely prone to dirt and grime during daily use, which is not conducive to cleaning and use. Summary of the Invention

[0004] The purpose of the present invention is to provide a chenille waterproof floor mat and its production process, which solves the problem of poor waterproof performance of the existing polyester chenille floor mat and enables it to have good antibacterial and anti-fouling capabilities.

[0005] The purpose of the present invention can be achieved through the following technical solutions: A chenille waterproof floor mat is made through the following steps:

[0006] Step S1: Mix antibacterial and water-absorbing microspheres, polyacrylic acid, and deionized water to prepare a microsphere finishing solution. The mass concentration of antibacterial and water-absorbing microspheres in the microsphere finishing solution is 5 - 10 g / L, and the mass concentration of polyacrylic acid is 10 g / L. Use the two-dip two-roll method to finish the polyester base fabric. Immerse the polyester base fabric in the microsphere finishing solution. The temperature of the two immersions is 40 °C, the immersion time is 1 h respectively, the bath ratio is 1:15, and the squeeze ratio is 80%. Then pre-bake at 80 °C for 3 min and cure at 120 °C for 3 min to obtain a modified base fabric;

[0007] Step S2: Add the modified polyester into a melt spinning machine for melt spinning to obtain modified polyester filaments. Through a chenille spinning machine, use two polyester filaments as the core yarns and six modified polyester filaments as the decorative yarns, and twist the decorative yarns between the two core yarns in a spiral shape to obtain modified chenille yarn;

[0008] Step S3: Feed the modified chenille yarn and the modified base fabric into a tufting loom, and then through dyeing, finishing, mending, and bottom-reinforcing, a chenille waterproof floor mat is obtained;

[0009] The modified polyester is obtained through the following steps:

[0010] Step A1: Mix N-methyl-4-piperidone, phenol and deionized water. Under the protection of nitrogen, with a stirring rate of 300 - 350 rpm and a temperature of 5 °C, stir and drop in concentrated sulfuric acid, and react for 48 h to obtain Intermediate 1. Mix Intermediate 1, ethylene carbonate, potassium carbonate and N,N-dimethylformamide, and react under the protection of nitrogen, with a stirring rate of 300 - 350 rpm and a temperature of 160 °C for 2 h to obtain Intermediate 2;

[0011] The dosage ratio of N-methyl-4-piperidone, phenol and concentrated sulfuric acid is 0.5 mol: 1 - 1.2 mol: 20 mL, and the dosage ratio of Intermediate 1, ethylene carbonate and potassium carbonate is 0.5 mol: 1 - 1.2 mol: 4 g;

[0012] During the reaction process, under the action of a Lewis acid, the keto group in N-methyl-4-piperidone undergoes an electrophilic substitution reaction with phenol to form a bisphenol A structure, obtaining Intermediate 1. Then, the phenolic hydroxyl group in Intermediate 1 reacts with ethylene carbonate to form a phenoxyethanol structure, obtaining Intermediate 2;

[0013] Step A2: Mix Intermediate 2, dimethyl terephthalate and ethylene glycol. With a stirring rate of 300 - 400 rpm and a temperature of 200 °C, stir and add zinc acetate and antimony trioxide, and react for 2 h. Then, raise the temperature to 250 °C and control the vacuum degree to -0.099 MPa, and react for 6 - 8 h to obtain block polyester;

[0014] The dosage ratio of Intermediate 2, dimethyl terephthalate, ethylene glycol, zinc acetate and antimony trioxide is 0.05 mol: 0.1 mol: 0.32 - 0.35 mol: 0.05 - 0.08 g: 0.03 - 0.05 g;

[0015] During the reaction process, under the action of the catalyst zinc acetate, the ester group in dimethyl terephthalate undergoes a transesterification reaction with the alcoholic hydroxyl groups in Intermediate 2 and ethylene glycol to form hydroxyethyl ester groups, and then undergoes a polycondensation reaction under the action of antimony trioxide to obtain block polyester;

[0016] Step A3: Mix block polyester, N,N-dimethylformamide and chloroform. With a stirring rate of 200 - 300 rpm and a temperature of 60 °C, stir and add propanesultone, and react for 48 h to obtain modified polyester;

[0017] The dosage ratio of block polyester and propanesultone is 4 - 6 g: 0.01 mol;

[0018] During the reaction process, propanesultone ring-opens and reacts with the tertiary amino group in N-methyl-4-piperidone in the block polyester to quaternize the tertiary amino group and introduce a sulfur root at the same time, obtaining modified polyester;

[0019] The antibacterial and water-absorbing microspheres are prepared through the following steps:

[0020] Step B1: Mix sorbitan laurate and cyclohexane and ultrasonically disperse for 10 min. Under nitrogen protection, with a stirring rate of 120 - 180 rpm and a temperature of 30 °C, stir and dropwise add a mixed solution of acrylamide, N,N'-methylenebisacrylamide, ammonium persulfate and deionized water, then raise the temperature to 60 °C, react for 2 - 3 h, and filter to obtain polyacrylamide microspheres. Mix the polyacrylamide microspheres, N,N-diisopropylethylamine and dichloromethane, and under a stirring rate of 200 - 300 rpm and a temperature of 0 °C, stir and add maleic anhydride and 1-hydroxybenzotriazole, raise the temperature to room temperature, and react for 24 h to obtain grafted microspheres;

[0021] The dosage ratios of sorbitan laurate, cyclohexane, acrylamide, N,N'-methylenebisacrylamide and ammonium persulfate are 1.5 - 2 g : 150 mL : 0.05 - 0.08 mol : 0.05 g : 0.08 - 0.1 g, and the dosage ratios of polyacrylamide microspheres, N,N-diisopropylethylamine, maleic anhydride and 1-hydroxybenzotriazole are 6 - 8 g : 0.5 mL : 4 - 5 g : 0.2 g;

[0022] During the reaction process, by the inverse suspension method, the mixed solution of acrylamide, N,N'-methylenebisacrylamide, ammonium persulfate and deionized water is dropped into the mixed system of sorbitan laurate and cyclohexane, and crosslinking polymerization occurs under the action of the crosslinking agent N,N'-methylenebisacrylamide and the initiator ammonium persulfate to obtain polyacrylamide microspheres. The amide groups in the polyacrylamide microspheres react with maleic anhydride under the action of the catalyst N,N-diisopropylethylamine and 1-hydroxybenzotriazole, and maleic anhydride reacts with amino groups to form amide bonds to obtain grafted microspheres;

[0023] Step B2: Mix 3-mercaptopropionic acid, 1,2-phenylenediamine and hydrochloric acid solution, and under argon protection, with a stirring rate of 180 - 240 rpm and a temperature of 100 °C, react for 48 h to obtain intermediate a. Mix intermediate a, grafted microspheres, ethanol and water, and under a stirring rate of 300 - 400 rpm and a temperature of 60 °C, react for 8 - 10 h to obtain modified microspheres;

[0024] The molar concentration of the hydrochloric acid solution is 4 mol / L, and the dosage ratios of 3-mercaptopropionic acid, 1,2-phenylenediamine and hydrochloric acid solution are 0.5 - 0.6 mol : 0.5 mol : 30 - 40 mL, and the dosage ratio of intermediate a and grafted microspheres is 0.05 mol : 6 - 8 g;

[0025] During the reaction process, the carboxyl group in 3-mercaptopropionic acid first undergoes an N-acylation reaction with one amino group in 1,2-phenylenediamine, and then the other amino group adds to the carbonyl group to form a ring and dehydrates to form a benzimidazole structure, obtaining an intermediate a containing a mercapto group. The mercapto group in the intermediate a then undergoes a click reaction with the double bond in the grafted microspheres to obtain modified microspheres;

[0026] Step B3: Mix the modified microspheres, silver nitrate solution and ethanol, and react at a stirring rate of 300-400 rpm at room temperature for 12 h, then filter to obtain antibacterial and water-absorbing microspheres;

[0027] The mass concentration of the silver nitrate solution is 0.3 mol / L, and the dosage ratio of the modified microspheres to the silver nitrate solution is 1-2 g:30 mL;

[0028] During the reaction process, the benzimidazole group in the modified microspheres coordinates and complexes with the silver ions in silver nitrate to obtain antibacterial and water-absorbing microspheres;

[0029] The beneficial effects of the present invention: The present invention relates to a chenille waterproof floor mat and its production process. By modifying the base fabric used for the chenille waterproof floor mat, that is, using polyacrylic acid as an adhesive, polyacrylic acid undergoes self-crosslinking during the baking process, thereby finishing the antibacterial and water-absorbing microspheres into the base fabric to obtain a modified base fabric. By preparing modified polyester and using the modified polyester as a raw material to prepare modified polyester filaments, and then using the modified polyester filaments as the decorative yarn of the chenille yarn, the chenille yarn itself has good antibacterial and anti-fouling properties, and further makes the chenille waterproof floor mat have good water-absorbing, antibacterial and anti-fouling properties; the modified polyester is obtained by the transesterification reaction of intermediate 2, dimethyl terephthalate and ethylene glycol, and then quaternized and sulfur root groups are introduced. Since the modified polyester has an amphoteric ion structure on the side chain and presents a comb-like arrangement, it has strong hydrophilicity and will combine with water molecules when contacting water, thereby avoiding contact with pollutants, and the steric hindrance effect of its comb-like arrangement can also reduce the attachment of proteins, so that the modified polyester filaments themselves have good hydrophilic and anti-fouling properties, reducing the entry of pollutants into the decorative yarn structure of the chenille yarn, and the quaternary ammonium groups generated by its quaternization also have certain antibacterial properties. The antibacterial and water-absorbing microspheres are obtained by grafting a benzimidazole structure on the surface of polyacrylamide microspheres and coordinating and complexing with silver ions through benzimidazole. Since the polyacrylamide microspheres themselves have good water-absorbing properties, they can quickly absorb water when the chenille waterproof floor mat comes into contact with water, thereby playing a waterproof role, and the silver ions coordinated on its surface can play a certain antibacterial role. Specific embodiments

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention. Embodiment 1

[0031] A chenille waterproof floor mat is made through the following steps:

[0032] Step S1: Mix antibacterial and water-absorbing microspheres, commercially available Mingtu Chemical Industry's polyacrylic acid with a molecular weight of 2000, and water to prepare a microsphere finishing solution. The mass concentration of antibacterial and water-absorbing microspheres in the microsphere finishing solution is 5 g / L, and the mass concentration of polyacrylic acid is 10 g / L. Use the two-dip and two-roll method to finish the commercially available Juntong polyester base fabric. Immerse the polyester base fabric in the microsphere finishing solution. The temperature of the two immersions is 40°C, the immersion time is 1 h respectively, the bath ratio is 1:15, and the squeeze ratio is 80%. Then pre-bake at 80°C for 3 min and cure at 120°C for 3 min to obtain a modified base fabric;

[0033] Step S2: Add the modified polyester into a melt spinning machine for melt spinning to obtain modified polyester filaments. Through a chenille spinning machine, use two commercially available Yongxing polyester filaments as the core yarns and six modified polyester filaments as the decorative yarns. Clamp the decorative yarns between the two core yarns and twist them in a spiral shape to obtain modified chenille yarn;

[0034] Step S3: Feed the modified chenille yarn and the modified base fabric into a tufting loom, and then through dyeing, finishing, mending, and bottom coating to obtain a chenille waterproof floor mat;

[0035] The modified polyester is prepared through the following steps:

[0036] Step A1: Mix N-methyl-4-piperidone, phenol, and deionized water. Under the condition of nitrogen protection, with a stirring rate of 300 - 350 rpm and a temperature of 5°C, stir and drop concentrated sulfuric acid, and react for 48 h to obtain Intermediate 1. Mix Intermediate 1, ethylene carbonate, potassium carbonate, and N,N-dimethylformamide. Under nitrogen protection, with a stirring rate of 300 - 350 rpm and a temperature of 160°C, react for 2 h to obtain Intermediate 2;

[0037] The dosage ratio of N-methyl-4-piperidone, phenol, and concentrated sulfuric acid is 0.5 mol:1 mol:20 mL, and the dosage ratio of Intermediate 1, ethylene carbonate, and potassium carbonate is 0.5 mol:1 mol:4 g;

[0038] Step A2: Mix intermediate 2, dimethyl terephthalate, and ethylene glycol, and while stirring at a rate of 300 rpm and a temperature of 200 °C, stir and add zinc acetate and antimony trioxide, react for 2 h, then raise the temperature to 250 °C and control the vacuum degree to -0.099 MPa, and react for 6 h to obtain block polyester;

[0039] The dosage ratio of intermediate 2, dimethyl terephthalate, ethylene glycol, zinc acetate, and antimony trioxide is 0.05 mol: 0.1 mol: 0.32 mol: 0.05 g: 0.03 g;

[0040] Step A3: Mix block polyester, N,N-dimethylformamide, and chloroform, and while stirring at a rate of 200 rpm and a temperature of 60 °C, stir and add propanesultone, react for 48 h to obtain modified polyester;

[0041] The dosage ratio of block polyester and propanesultone is 4 g: 0.01 mol;

[0042] The antibacterial and water-absorbing microspheres are prepared through the following steps:

[0043] Step B1: Mix sorbitan laurate and cyclohexane and ultrasonically disperse for 10 min. Under nitrogen protection, while stirring at a rate of 120 rpm and a temperature of 30 °C, stir and dropwise add a mixed solution of acrylamide, N,N-methylenebisacrylamide, ammonium persulfate, and deionized water, then raise the temperature to 60 °C, react for 2 h, filter to obtain polyacrylamide microspheres. Mix the polyacrylamide microspheres, N,N-diisopropylethylamine, and dichloromethane, and while stirring at a rate of 200 rpm and a temperature of 0 °C, stir and add maleic anhydride and 1-hydroxybenzotriazole, raise the temperature to room temperature, and react for 24 h to obtain grafted microspheres;

[0044] The dosage ratio of sorbitan laurate, cyclohexane, acrylamide, N,N-methylenebisacrylamide, and ammonium persulfate is 1.5 g: 150 mL: 0.05 mol: 0.05 g: 0.08 g, and the dosage ratio of polyacrylamide microspheres, N,N-diisopropylethylamine, maleic anhydride, and 1-hydroxybenzotriazole is 6 g: 0.5 mL: 4 g: 0.2 g;

[0045] Step B2: Mix 3-mercaptopropionic acid, 1,2-phenylenediamine, and hydrochloric acid solution. Under argon protection, while stirring at a rate of 180 rpm and a temperature of 100 °C, react for 48 h to obtain intermediate a. Mix intermediate a, grafted microspheres, ethanol, and water, and while stirring at a rate of 300 rpm and a temperature of 60 °C, react for 8 h to obtain modified microspheres;

[0046] The molar concentration of the hydrochloric acid solution is 4 mol / L, and the dosage ratio of 3-mercaptopropionic acid, 1,2-phenylenediamine and the hydrochloric acid solution is 0.5 mol: 0.5 mol: 30 mL. The dosage ratio of intermediate a and the grafted microspheres is 0.05 mol: 6 g;

[0047] Step B3: Mix the modified microspheres, silver nitrate solution and ethanol, and react at a stirring rate of 300 rpm and room temperature for 12 h, then filter to obtain the antibacterial water-absorbing microspheres;

[0048] The mass concentration of the silver nitrate solution is 0.3 mol / L, and the dosage ratio of the modified microspheres and the silver nitrate solution is 1 g: 30 mL. Example 2

[0049] A chenille waterproof floor mat is made through the following steps:

[0050] Step S1: Mix the antibacterial water-absorbing microspheres, commercially available Mingtu Chemical polyacrylic acid with a molecular weight of 2000 and water to obtain a microsphere finishing solution. The mass concentration of the antibacterial water-absorbing microspheres in the microsphere finishing solution is 8 g / L, and the mass concentration of polyacrylic acid is 10 g / L. Use the two-dip two-roll method to finish the commercially available Juntong polyester base fabric. Immerse the polyester base fabric in the microsphere finishing solution. The temperature for the two immersions is 40 °C, the immersion time is 1 h respectively, the bath ratio is 1:15, the squeeze ratio is 80%, then pre-bake at 80 °C for 3 min and cure at 120 °C for 3 min to obtain the modified base fabric;

[0051] Step S2: Add the modified polyester into a melt spinning machine for melt spinning to obtain modified polyester filaments. Through a chenille spinning machine, use two commercially available Yongxing polyester filaments as the core yarns and six modified polyester filaments as the decorative yarns, and twist the decorative yarns between the two core yarns in a spiral shape to obtain the modified chenille yarn;

[0052] Step S3: Feed the modified chenille yarn and the modified base fabric into a tufting loom, and then through dyeing, finishing, mending, and double-bottoming to obtain a chenille waterproof floor mat;

[0053] The modified polyester is prepared through the following steps:

[0054] Step A1: Mix N-methyl-4-piperidone, phenol and deionized water, and under the condition of nitrogen protection, stir at a rate of 350 rpm and a temperature of 5 °C, stir and drop concentrated sulfuric acid, and react for 48 h to obtain intermediate 1. Mix intermediate 1, ethylene carbonate, potassium carbonate and N,N-dimethylformamide, and react under nitrogen protection, at a stirring rate of 350 rpm and a temperature of 160 °C for 2 h to obtain intermediate 2;

[0055] The dosage ratio of N-methyl-4-piperidone, phenol and concentrated sulfuric acid is 0.5 mol: 1 mol: 20 mL, and the dosage ratio of intermediate 1, ethylene carbonate and potassium carbonate is 0.5 mol: 1 mol: 4 g;

[0056] Step A2: Mix intermediate 2, dimethyl terephthalate and ethylene glycol, stir and add zinc acetate and antimony trioxide under the conditions of a stirring rate of 400 rpm and a temperature of 200 °C, react for 1 h, then raise the temperature to 250 °C and control the vacuum degree to -0.099 MPa, and react for 6 h to obtain a block polyester;

[0057] The dosage ratio of intermediate 2, dimethyl terephthalate, ethylene glycol, zinc acetate and antimony trioxide is 0.05 mol: 0.1 mol: 0.35 mol: 0.05 g: 0.05 g;

[0058] Step A3: Mix the block polyester, N,N-dimethylformamide and chloroform, stir and add propanesultone under the conditions of a stirring rate of 300 rpm and a temperature of 60 °C, react for 48 h to obtain a modified polyester;

[0059] The dosage ratio of the block polyester and propanesultone is 5 g: 0.01 mol;

[0060] The antibacterial and water-absorbing microspheres are prepared through the following steps:

[0061] Step B1: Mix sorbitan laurate and cyclohexane and ultrasonically disperse for 10 min. Under nitrogen protection, stir and drop into a mixed solution of acrylamide, N,N-methylenebisacrylamide, ammonium persulfate and deionized water under the conditions of a stirring rate of 180 rpm and a temperature of 30 °C, then raise the temperature to 60 °C, react for 2 h, filter to obtain polyacrylamide microspheres. Mix the polyacrylamide microspheres, N,N-diisopropylethylamine and dichloromethane, stir and add maleic anhydride and 1-hydroxybenzotriazole under the conditions of a stirring rate of 300 rpm and a temperature of 0 °C, raise the temperature to room temperature, and react for 24 h to obtain grafted microspheres;

[0062] The dosage ratio of sorbitan laurate, cyclohexane, acrylamide, N,N-methylenebisacrylamide and ammonium persulfate is 2 g: 150 mL: 0.05 mol: 0.05 g: 0.08 g, and the dosage ratio of polyacrylamide microspheres, N,N-diisopropylethylamine, maleic anhydride and 1-hydroxybenzotriazole is 6 g: 0.5 mL: 5 g: 0.2 g;

[0063] Step B2: Mix 3-mercaptopropionic acid, 1,2-phenylenediamine and hydrochloric acid solution. Under the protection of argon, with a stirring rate of 240 rpm and a temperature of 100 °C, react for 48 h to obtain intermediate a. Mix intermediate a, grafted microspheres, ethanol and water, and react at a stirring rate of 400 rpm and a temperature of 60 °C for 8 - 10 h to obtain modified microspheres;

[0064] The molar concentration of the hydrochloric acid solution is 4 mol / L, and the dosage ratio of 3-mercaptopropionic acid, 1,2-phenylenediamine and hydrochloric acid solution is 0.5 mol: 0.5 mol: 40 mL. The dosage ratio of intermediate a and grafted microspheres is 0.05 mol: 6 g;

[0065] Step B3: Mix the modified microspheres, silver nitrate solution and ethanol, and react at a stirring rate of 400 rpm at room temperature for 12 h, then filter to obtain antibacterial and water-absorbent microspheres;

[0066] The mass concentration of the silver nitrate solution is 0.3 mol / L, and the dosage ratio of the modified microspheres and the silver nitrate solution is 2 g: 30 mL. Example 3

[0067] A chenille waterproof floor mat is made through the following steps:

[0068] Step S1: Mix antibacterial and water-absorbent microspheres, commercially available Mingtu Chemical polyacrylic acid with a molecular weight of 2000 and water to obtain a microsphere finishing solution. The mass concentration of antibacterial and water-absorbent microspheres in the microsphere finishing solution is 10 g / L, and the mass concentration of polyacrylic acid is 10 g / L. Use the two-dip and two-roll method to finish the commercially available Juntong polyester base fabric. Immerse the polyester base fabric in the microsphere finishing solution. The temperature of the two immersions is 40 °C, the immersion time is 1 h respectively, the bath ratio is 1:15, the squeeze ratio is 80%, then pre-bake at 80 °C for 3 min and cure at 120 °C for 3 min to obtain a modified base fabric;

[0069] Step S2: Add the modified polyester into a melt spinning machine for melt spinning to obtain modified polyester filaments. Through a chenille spinning machine, use two commercially available Yongxing polyester filaments as the core yarns and six modified polyester filaments as the decorative yarns, and twist the decorative yarns between the two core yarns in a spiral shape to obtain modified chenille yarn;

[0070] Step S3: Feed the modified chenille yarn and the modified base fabric into a tufting loom, and then through dyeing, finishing, mending, and double-bottoming to obtain a chenille waterproof floor mat;

[0071] The modified polyester is prepared through the following steps: Step A1: Mix N-methyl-4-piperidone, phenol and deionized water, and under the protection of nitrogen, with a stirring rate of 350 rpm and a temperature of 5 °C, stir and dropwise add concentrated sulfuric acid, and react for 48 h to obtain Intermediate 1. Mix Intermediate 1, ethylene carbonate, potassium carbonate and N,N-dimethylformamide, and under the protection of nitrogen, with a stirring rate of 300 - 350 rpm and a temperature of 160 °C, react for 2 h to obtain Intermediate 2;

[0072] The dosage ratio of N-methyl-4-piperidone, phenol and concentrated sulfuric acid is 0.5 mol: 1.2 mol: 20 mL, and the dosage ratio of Intermediate 1, ethylene carbonate and potassium carbonate is 0.5 mol: 1.2 mol: 4 g;

[0073] Step A2: Mix Intermediate 2, dimethyl terephthalate and ethylene glycol, and with a stirring rate of 400 rpm and a temperature of 200 °C, stir and add zinc acetate and antimony trioxide, and react for 1 h. Then raise the temperature to 250 °C and control the vacuum degree to -0.099 MPa, and react for 8 h to obtain block polyester;

[0074] The dosage ratio of Intermediate 2, dimethyl terephthalate, ethylene glycol, zinc acetate and antimony trioxide is 0.05 mol: 0.1 mol: 0.35 mol: 0.08 g: 0.05 g;

[0075] Step A3: Mix block polyester, N,N-dimethylformamide and chloroform, and with a stirring rate of 300 rpm and a temperature of 60 °C, stir and add propanesultone, and react for 48 h to obtain modified polyester;

[0076] The dosage ratio of block polyester and propanesultone is 6 g: 0.01 mol;

[0077] The antibacterial and water-absorbing microspheres are prepared through the following steps:

[0078] Step B1: Mix sorbitan laurate and cyclohexane and ultrasonically disperse for 10 min. Under the protection of nitrogen, with a stirring rate of 180 rpm and a temperature of 30 °C, stir and dropwise add a mixed solution of acrylamide, N,N-methylenebisacrylamide, ammonium persulfate and deionized water, then raise the temperature to 60 °C, react for 3 h, and filter to obtain polyacrylamide microspheres. Mix polyacrylamide microspheres, N,N-diisopropylethylamine and dichloromethane, and with a stirring rate of 300 rpm and a temperature of 0 °C, stir and add maleic anhydride and 1-hydroxybenzotriazole, raise the temperature to room temperature, and react for 24 h to obtain grafted microspheres;

[0079] The dosage ratio of sorbitan laurate, cyclohexane, acrylamide, N,N-methylenebisacrylamide and ammonium persulfate is 2 g: 150 mL: 0.08 mol: 0.05 g: 0.1 g, and the dosage ratio of polyacrylamide microspheres, N,N-diisopropylethylamine, maleic anhydride and 1-hydroxybenzotriazole is 8 g: 0.5 mL: 5 g: 0.2 g;

[0080] Step B2: Mix 3-mercaptopropionic acid, 1,2-phenylenediamine and hydrochloric acid solution, and under the protection of argon, with a stirring rate of 240 rpm and a temperature of 100 °C, react for 48 h to obtain intermediate a. Mix intermediate a, grafted microspheres, ethanol and water, and under a stirring rate of 400 rpm and a temperature of 60 °C, react for 10 h to obtain modified microspheres;

[0081] The molar concentration of the hydrochloric acid solution is 4 mol / L, and the dosage ratio of 3-mercaptopropionic acid, 1,2-phenylenediamine and hydrochloric acid solution is 0.6 mol: 0.5 mol: 40 mL, and the dosage ratio of intermediate a and grafted microspheres is 0.05 mol: 8 g;

[0082] Step B3: Mix the modified microspheres, silver nitrate solution and ethanol, and under a stirring rate of 400 rpm and at room temperature, react for 12 h, then filter to obtain antibacterial and water-absorbent microspheres;

[0083] The mass concentration of the silver nitrate solution is 0.3 mol / L, and the dosage ratio of the modified microspheres and the silver nitrate solution is 2 g: 30 mL.

[0084] Comparative Example 1

[0085] Compared with Example 3, in this comparative example, the modified polyester in Example 3 is replaced with the block polyester in Example 3, and other steps are the same.

[0086] Comparative Example 2

[0087] Compared with Example 3, in this comparative example, the modified polyester filament in Example 3 is replaced with a commercially available Yongxing polyester filament, and other steps are the same.

[0088] Comparative Example 3

[0089] Compared with Example 3, in this comparative example, the antibacterial and water-absorbent microspheres in Example 3 are replaced with the modified microspheres in Example 3, and other steps are the same.

[0090] Comparative Example 4

[0091] Compared with Example 3, in this comparative example, the antibacterial and water-absorbent microspheres are removed during the preparation of the modified base fabric in Example 3, and other steps are the same.

[0092] Take a chenille waterproof floor mat prepared in Example 1, Example 2, Example 3, Comparative Example 1, Comparative Example 2, Comparative Example 3 and Comparative Example 4. Cut the chenille waterproof floor mat into 10 cm×10 cm samples and weigh the dry weight, ensuring that the number of chenille pile in each sample is the same. Immerse it completely in water at room temperature, take it out after soaking for 3 h and hang it until no water drips, weigh the wet weight, and calculate its water absorption rate as (wet weight - dry weight) / dry weight×100% to evaluate the water absorption capacity of the chenille waterproof floor mat. Add bovine serum albumin to Tris-HC1 buffer solution with a pH of 8 to prepare a bovine serum albumin solution with a mass concentration of 1 g / L. Immerse the sample in the bovine serum albumin solution and soak it at room temperature for 24 h. Take it out and measure the protein concentration in the bovine serum albumin solution before and after soaking respectively with an ultraviolet spectrophotometer at a wavelength of 280 nm, so as to calculate the adsorption amount of bovine serum albumin to evaluate the anti-fouling ability of the chenille waterproof floor mat. Refer to FZ / T73023-2006, cut the chenille waterproof floor mat into samples with a size of 2.5 cm×2.5 cm, ensure that the number of chenille pile in each sample is the same, and use the oscillation method to measure its antibacterial property. The test strains are Gram-positive bacteria, Staphylococcus aureus and Gram-negative bacteria Escherichia coli. The test results are as follows in the table:

[0093] Test Items Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Water Absorption Rate (%) 137 141 145 132 128 138 82 <![CDATA[Adsorption amount of bovine serum albumin (mg / m 2 )]]> 72 69 71 198 207 73 69 Antibacterial Rate Against Gram-Positive Bacteria (%) 94.6 95.8 96.4 84.7 83.2 46.7 53.4 Antibacterial Rate Against Staphylococcus Aureus (%) 94.0 94.5 95.7 82.1 80.3 45.2 54.8 Antibacterial Rate Against Gram-Negative Bacterium Escherichia Coli (%) 87.7 89.2 89.3 73.4 71.6 37.9 48.7

[0094] It can be seen from the test results in the shown table that when comparing Example 1, Example 2 and Example 3 with Comparative Example 1, Comparative Example 2, Comparative Example 3 and Comparative Example 4, in Comparative Example 1, the modified polyester in Example 3 was replaced with block polyester in Example 3. Since the block polyester lacks zwitterionic structure, the prepared chenille yarn does not have hydrophilic and anti-fouling properties, resulting in a decrease in its water absorption rate and a significant increase in the adsorption amount of bovine serum albumin, indicating that the modified polyester can improve the water absorption and anti-fouling properties of the chenille waterproof floor mat. In Comparative Example 2, the modified polyester filament in Example 3 was replaced with a commercially available Yongxing polyester filament. Since both Comparative Example 1 and Comparative Example 2 lack quaternary ammonium groups, their antibacterial properties decreased to a certain extent compared with Example 3. Compared with Example 3, in Comparative Example 3, the antibacterial and water-absorbing microspheres in Example 3 were replaced with modified microspheres in Example 3. Since the base fabric lacks complex silver, the antibacterial property of the chenille waterproof floor mat decreased severely. Compared with Example 3, in Comparative Example 4, the antibacterial and water-absorbing microspheres were removed during the preparation of the modified base fabric in Example 3, and its water absorption rate and antibacterial property decreased significantly, indicating that the presence of antibacterial modified microspheres can better improve the water absorption and antibacterial properties of the chenille waterproof floor mat.

[0095] In the description of the specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0096] The above content is only an example and illustration of the concept of the present invention. Those skilled in the art of this technology can make various modifications or supplements to the described specific embodiments or use similar ways to substitute, as long as they do not deviate from the concept of the invention or exceed the scope defined by this claims, they should all belong to the protection scope of the present invention.

Claims

1. A production process for a chenille waterproof floor mat, characterized in that: The method is prepared by the following steps: Step S1: mixing antibacterial water-absorbing microspheres, polyacrylic acid and deionized water to prepare a microsphere finishing liquid, wherein the mass concentration of the antibacterial water-absorbing microspheres in the microsphere finishing liquid is 5-10 g / L, and the mass concentration of the polyacrylic acid is 10 g / L; finishing the polyester base fabric by a two-immersion and two-rolling method; immersing the polyester base fabric in the microsphere finishing liquid; the temperature of the two immersions is 40° C., the immersion time is 1 h, the bath ratio is 1:15, the rolling rate is 80%, and then pre-baking at 80° C. for 3 min and baking at 120° C. for 3 min to obtain a modified base fabric; Step S2: adding the modified polyester to a melt spinning machine, melt spinning, and obtaining modified polyester filaments, and passing through a chenille spinning machine, using two polyester filaments as core yarns and six modified polyester filaments as decorative yarns, and sandwiching the decorative yarns between the two core yarns and twisting them in a spiral shape to obtain modified chenille yarns; Step S3: feeding the modified chenille yarn and the modified base fabric into a tufting loom, and then dyeing, finishing, repairing, and backing to obtain a chenille waterproof floor mat; The modified polyester is prepared by the following steps: Step A1: N-methyl-4-piperidone, phenol and deionized water were mixed, and concentrated sulfuric acid was added dropwise under nitrogen protection at a stirring rate of 300-350 rpm and a temperature of 5°C, and the mixture was stirred for 48 hours to obtain intermediate 1. Intermediate 1, ethylene carbonate, potassium carbonate and N,N-dimethylformamide were mixed, and the mixture was stirred at a stirring rate of 300-350 rpm and a temperature of 160°C for 2 hours under nitrogen protection to obtain intermediate 2; Step A2: Intermediate 2, dimethyl terephthalate and ethylene glycol are mixed, and zinc acetate and antimony trioxide are added under stirring conditions of 300-400 rpm and 200° C., and the mixture is reacted for 2 h, and then the temperature is raised to 250° C. and the vacuum degree is controlled to be -0.099 MPa, and the mixture is reacted for 6-8 h to obtain a block polyester; Step A3: block polyester, N,N-dimethylformamide and chloroform were mixed, stirred at a stirring rate of 200-300 rpm and a temperature of 60° C., propane sultone was added, and the mixture was reacted for 48 hours to obtain a modified polyester.

2. The production process of a chenille waterproof floor mat according to claim 1, characterized in that: In step A1: the ratio of N-methyl-4-piperidone, phenol and concentrated sulfuric acid is 0.5 mol: 1-1.2 mol: 20 mL, and the ratio of intermediate 1, ethylene carbonate and potassium carbonate is 0.5 mol: 1-1.2 mol: 4 g.

3. The production process of a chenille waterproof floor mat according to claim 1, characterized in that: The usage ratio of intermediate 2, dimethyl terephthalate, ethylene glycol, zinc acetate and antimony trioxide is 0.05 mol: 0.1 mol: 0.32-0.35 mol: 0.05-0.08 g: 0.03-0.05 g.

4. The production process of a chenille waterproof floor mat according to claim 1, characterized in that: In step A3: the ratio of block polyester to propane sultone is 4-6 g:0.01 mol.

5. The production process of a chenille waterproof floor mat according to claim 1, characterized in that: The antibacterial water-absorbing microspheres are prepared by the following steps: Step B1: Mix sorbitan laurate and cyclohexane and ultrasonically disperse for 10 minutes, stir and drop a mixture of acrylamide, N,N-methylenebisacrylamide, ammonium persulfate and deionized water under nitrogen protection, stirring at a rate of 120-180 rpm and a temperature of 30°C, then heat to 60°C, react for 2-3 hours, filter to obtain polyacrylamide microspheres, mix polyacrylamide microspheres, N,N-diisopropylethylamine and dichloromethane, stir and add maleic anhydride and 1-hydroxybenzotriazole at a stirring rate of 200-300 rpm and a temperature of 0°C, heat to room temperature, and react for 24 hours to obtain grafted microspheres; Step B2: 3-mercaptopropionic acid, 1,2-phenylenediamine and hydrochloric acid solution are mixed, and the mixture is reacted for 48 hours under argon protection, at a stirring rate of 180-240 rpm and a temperature of 100° C. to obtain intermediate a; intermediate a, grafted microspheres, ethanol and water are mixed, and the mixture is reacted for 8-10 hours at a stirring rate of 300-400 rpm and a temperature of 60° C. to obtain modified microspheres; Step B3: The modified microspheres, silver nitrate solution and ethanol were mixed, stirred at a rate of 300-400 rpm, reacted for 12 hours at room temperature, and filtered to obtain antibacterial water-absorbing microspheres.

6. The production process of a chenille waterproof floor mat according to claim 5, characterized in that: In step B1, the usage ratio of sorbitan laurate, cyclohexane, acrylamide, N,N-methylenebisacrylamide and ammonium persulfate is 1.5-2g:150mL:0.05-0.08mol:0.05g:0.08-0.1g, and the usage ratio of polyacrylamide microspheres, N,N-diisopropylethylamine, maleic anhydride and 1-hydroxybenzotriazole is 6-8g:0.5mL:4-5g:0.2g.

7. The production process of a chenille waterproof floor mat according to claim 5, characterized in that: In step B2: the molar concentration of the hydrochloric acid solution is 4 mol / L, the amount ratio of 3-mercaptopropionic acid, 1,2-phenylenediamine and hydrochloric acid solution is 0.5-0.6 mol: 0.5 mol: 30-40 mL, and the amount ratio of intermediate a and grafted microspheres is 0.05 mol: 6-8 g.

8. The production process of a chenille waterproof floor mat according to claim 5, characterized in that: In step B3: the mass concentration of the silver nitrate solution is 0.3 mol / L, and the amount ratio of the modified microspheres to the silver nitrate solution is 1-2 g: 30 mL.

9. A chenille waterproof floor mat, characterized in that: Prepared according to any one of the production processes described in claims 1-8.