Antibacterial and deodorant functional fabric and preparation method thereof

Abstract

The invention discloses an antibacterial and deodorant functional fabric and a preparation method thereof, and relates to the technical field of textile fibers. When the antibacterial and deodorant functional fabric is prepared, pre-modified titanium dioxide reacts with diallyl chlorophosphate to prepare modified titanium dioxide; the preparation method comprises the following steps: carrying out polycondensation on hydroxypropyl-terminated polydimethylsiloxane, ethylene glycol, 3, 5-pyridinedicarboxylic acid and terephthalic acid to prepare polyester, and reacting with 4-chloromethylstyrene to prepare modified polyester; carrying out melt spinning on the modified polyester and the modified titanium dioxide to obtain polyester fibers; spinning polyester fibers to obtain a fiber fabric; carrying out coprecipitation on the carboxylated beta-cyclodextrin and tea polyphenol to prepare a carboxylated beta-cyclodextrin inclusion compound; the preparation method comprises the following steps: mixing a polyester fabric with a sodium hydroxide aqueous solution to prepare an alkali-treated polyester fabric, and immersing the alkali-treated polyester fabric into a carboxylated beta-cyclodextrin inclusion compound aqueous solution to prepare the antibacterial and deodorant functional fabric. The antibacterial and deodorant functional fabric prepared by the invention has good antibacterial, deodorant, flame-retardant and mechanical properties.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of textile fibers, in particular to an antibacterial and deodorant functional fabric and a preparation method thereof. BACKGROUND

[0002] With the changes of economy and social environment, people's requirements for life are not limited to solving the problem of food and clothing, but also pay attention to health and quality of life. In terms of traditional textile clothing, beauty, comfort and function are the main development direction, and the antibacterial functional clothing which is beneficial to health protection is booming. The organizational structure of textiles in life is easy to adhere to microorganisms, and the sweat and waste discharged by the human body provide an ideal environment for the growth of microorganisms, and the sweat odor produced by hot weather or exercise or the body odor caused by physiological reasons. The breeding of bacteria and the emission of odor will undoubtedly cause discomfort to the human body, and even more serious infection and disease hazards. Therefore, the present application prepares an antibacterial and deodorant functional fabric, which has good antibacterial and deodorant properties. SUMMARY

[0003] The present application aims to provide an antibacterial and deodorant functional fabric and a preparation method thereof to solve the problems in the prior art.

[0004] In order to solve the above technical problems, the present application provides the following technical scheme:

[0005] An antibacterial and deodorant functional fabric, which is prepared by immersing an alkali-treated polyester fabric in a carboxylated β-cyclodextrin inclusion compound aqueous solution.

[0006] As an optimization, the alkali-treated polyester fabric is prepared by mixing a polyester fabric with a sodium hydroxide aqueous solution.

[0007] As an optimization, the polyester fabric is prepared by melt spinning of a modified polyester and a modified titanium dioxide, and then textile.

[0008] As an optimization, the modified polyester is prepared by condensation polymerization of hydroxypropyl-terminated polydimethylsiloxane, ethylene glycol, 3,5-pyridine dicarboxylic acid and terephthalic acid, and then reacted with 4-chloromethylstyrene.

[0009] As an optimization, the carboxylated β-cyclodextrin inclusion compound is prepared by reacting β-cyclodextrin with monochloroacetic acid to obtain carboxylic acid β-cyclodextrin, and then co-precipitating with tea polyphenol.

[0010] As an optimization, the modified titanium dioxide is prepared by reacting titanium dioxide with 1-(triethoxysilyl)methylamine to obtain a pre-modified titanium dioxide, and then reacting with diallyl chlorophosphate.

[0011] An antibacterial and deodorant functional fabric and a preparation method thereof, comprising the following preparation steps:

[0012] (1) under the atmosphere of nitrogen, the pre-modified titanium dioxide, diallyl chlorophosphate, triethylamine, N,N-dimethylformamide are mixed uniformly according to the mass ratio of 1:(1-2):(0.6-1):(12-15), and stirred at 50-60℃ and 200-300r / min for 10-12h, and then the solvent is removed by distillation under reduced pressure, and the product is washed with deionized water for 4-6 times, and then dried at 40-50℃ under vacuum for 10-12h to obtain the modified titanium dioxide;

[0013] (2) the polyester, 4-chloromethylstyrene, N,N-dimethylformamide are mixed uniformly according to the mass ratio of 1:(2-3):(15-20), and stirred at 85-95℃ and 200-300r / min for 10-12h, and then cooled to room temperature, and then mixed uniformly with 20-30 times of ethyl acetate of the mass of the polyester, and then filtered and washed with ethyl acetate for 2-4 times, and then dried at 50-60℃ under vacuum for 10-12h to obtain the modified polyester;

[0014] (3) the modified polyester, the modified titanium dioxide, azobisisobutyronitrile are mixed uniformly according to the mass ratio of 1:(0.05-0.06):(0.001-0.002), and then melt spun in a twin-screw spinning machine to obtain the nascent polyester fiber, and then the nascent polyester fiber is stretched on a parallel drafting machine to obtain the polyester fiber, and then the polyester fiber is woven into a polyester fabric by a textile machine;

[0015] (4) the carboxylated β-cyclodextrin, deionized water, anhydrous ethanol are mixed uniformly according to the mass ratio of 1:(14-16):(7-8) at 55-65℃ to obtain a carboxylated β-cyclodextrin solution, and then the tea polyphenol, anhydrous ethanol are mixed uniformly according to the mass ratio of 1:(18-22) to obtain a tea polyphenol solution, and then the tea polyphenol solution is added uniformly into the carboxylated β-cyclodextrin solution at a dropping rate of 5ml / min and a mass ratio of 1:(2.5-3.5) between the tea polyphenol solution and the carboxylated β-cyclodextrin solution at 45-55℃, and then stirred at 200rpm in the dark for 14-16h, and then placed at 2-6℃ for 20-24h, and then filtered and washed with anhydrous ethanol for 2-4 times, and then dried at 20-30℃ under vacuum for 10-12h to obtain the carboxylated β-cyclodextrin inclusion compound;

[0016] (5) mixing the carboxylated β-cyclodextrin inclusion compound, deionized water and sodium hypophosphite in a mass ratio of 1:(15-20):(0.002-0.004) to obtain a carboxylated β-cyclodextrin inclusion compound aqueous solution; immersing the polyester fabric into a 2wt% sodium hydroxide aqueous solution, standing at 85-95°C for 40-60 min, washing with deionized water for 2-4 times, and vacuum drying at 40-50°C for 2-4 h to obtain an alkali-treated polyester fabric; immersing the alkali-treated polyester fabric into the carboxylated β-cyclodextrin inclusion compound aqueous solution, standing for 1-2 h, and drying in an oven at 90-100°C for 4-6 h, and baking at a high temperature of 160-170°C for 4-6 min to obtain an antibacterial and deodorant functional fabric.

[0017] As an optimization, the preparation step of the pre-modified titanium dioxide in step (1) is as follows: mixing titanium dioxide and toluene in a mass ratio of 1:(3-3.2), ultrasonic dispersing for 20-40 min, adding 1-(triethoxysilyl)methylamine hydrolysate in an amount of 1.6-1.8 times the mass of the titanium dioxide, stirring at 200-300 r / min at 65-75°C for 4-5 h, removing the solvent by rotary evaporation, and vacuum drying at 75-85°C for 10-12 h to obtain the pre-modified titanium dioxide.

[0018] As an optimization, the preparation step of the polyester in step (2) is as follows: mixing hydroxypropyl-terminated polydimethylsiloxane, ethylene glycol, 3,5-pyridinedicarboxylic acid, terephthalic acid, ethylene glycol antimony, and trimethyl phosphate in a mass ratio of 1:(0.2-0.3):(0.5-0.7):(0.4-0.6):(0.0001-0.0002):(0.0001-0.0002) to obtain a mixture, performing esterification reaction at a pressure of 0.3-0.4 MPa, a reaction temperature of 230-250°C, and a top temperature of the fractionating column of 125-135°C, when the amount of water produced reaches 95% of the theoretical amount of water, increasing the temperature to 265-275°C, and vacuuming to 40-60 Pa, stopping stirring when the stirring power reaches 240 W, and breaking the vacuum to discharge the product to obtain the polyester.

[0019] As an optimization, the parameters of the melt spinning in step (3) are as follows: the spinneret specification is 0.35 mm×34 f, the spinneret hole length-diameter ratio is 1:2, the spinning speed is 800 m / min, the temperature of the first zone is 280-290°C, the temperature of the second zone is 290-300°C, the temperature of the third zone is 295-305°C, the temperature of the fourth zone is 290-300°C, the temperature of the metering pump is 290-300°C, the temperature of the assembly is 290-300°C, the temperature of the elbow pipe is 290-300°C, and the temperature of the spinneret is 290-295°C.

[0020] As an optimization, the parameters of the stretching in step (3) are as follows: the temperature of the hot box is 75°C, the temperature of the hot plate is 150°C, the stretching and winding speed is 200 m / min, and the stretching multiple is 3.4-3.8.

[0021] As optimization, the preparation step of the carboxylated β-cyclodextrin in step (4) is: uniformly mixing β-cyclodextrin, sodium hydroxide and deionized water in a mass ratio of 1:(1-1.1):(6-6.5), stirring at 45-55°C and 200-300r / min for 10-20min, adding monochloroacetic acid in an amount of 1.15-1.25 times the mass of β-cyclodextrin, stirring at 75-85°C and 200-300r / min for 6-8h, cooling to room temperature, adjusting the pH to 2 with 20wt% hydrochloric acid solution, uniformly dropping into methanol at a rate of 5ml / min, with the methanol being 30-50 times the mass of β-cyclodextrin, standing for 10-15min, filtering with a cellulose acetate filter membrane, and vacuum drying at 40-50°C for 10-12h to obtain the carboxylated β-cyclodextrin.

[0022] As optimization, the preparation step of the 1-(triethoxysilyl)methylamine hydrolysate is: uniformly mixing 1-(triethoxysilyl)methylamine, deionized water and ethanol in a mass ratio of 1:2:8, adjusting the pH to 5-6 with glacial acetic acid, and stirring at room temperature and 200-300r / min for 3-4h to obtain the 1-(triethoxysilyl)methylamine hydrolysate.

[0023] As optimization, the titanium dioxide is anatase titanium dioxide with a particle size of 20nm, which is purchased from Xuancheng Jingrui New Material Co., Ltd.

[0024] As optimization, the hydroxypropyl-terminated polydimethylsiloxane is purchased from Shanghai Maikelin Biochemical Technology Co., Ltd.

[0025] As optimization, the tea polyphenol is purchased from Shanghai Yuan Ye Biological Technology Co., Ltd.

[0026] Compared with the prior art, the present application has the following beneficial effects:

[0027] In the preparation of the antibacterial and deodorant functional fabric, the present application reacts titanium dioxide with 1-(triethoxysilyl)methylamine to obtain pre-modified titanium dioxide, reacts the pre-modified titanium dioxide with diallyl chlorophosphate to obtain modified titanium dioxide, polycondensates hydroxypropyl-terminated polydimethylsiloxane, ethylene glycol and 3,5-pyridine dicarboxylic acid and terephthalic acid to obtain polyester, reacts the polyester with 4-chloromethylstyrene to obtain modified polyester, melt-spins the modified polyester and the modified titanium dioxide to obtain polyester fiber, weaves the polyester fiber to obtain fiber fabric, reacts β-cyclodextrin with monochloroacetic acid to obtain carboxylated β-cyclodextrin, co-precipitates the carboxylated β-cyclodextrin with tea polyphenol to obtain carboxylated β-cyclodextrin inclusion compound, mixes the polyester fabric with sodium hydroxide aqueous solution to obtain alkali-treated polyester fabric, and immerses the alkali-treated polyester fabric in carboxylated β-cyclodextrin inclusion compound aqueous solution to obtain the antibacterial and deodorant functional fabric.

[0028] Firstly, the pre-modified titanium dioxide is prepared by reacting titanium dioxide with 1-(triethoxysilyl)methylamine; the modified titanium dioxide is prepared by reacting the pre-modified titanium dioxide with diallyl chlorophosphate; under light conditions, the titanium dioxide can decompose a large number of free radicals to react with odor substances, thereby improving the good deodorization performance of the antibacterial and deodorization functional fabric; the 1-(triethoxysilyl)methylamine is used as a coupling agent to modify the titanium dioxide, thereby improving the compatibility of the titanium dioxide with the polyester; the amino group introduced on the surface of the titanium dioxide reacts with the diallyl chlorophosphate to introduce phosphorus elements, the phosphorus elements can capture free radicals to block the combustion reaction, thereby improving the flame retardation performance of the antibacterial and deodorization functional fabric; meanwhile, the double bond is introduced on the titanium dioxide to react with the double bond on the polyester to form a crosslinked network structure, thereby improving the mechanical performance of the antibacterial and deodorization functional fabric.

[0029] Secondly, the polyester is prepared by condensation polymerization of hydroxypropyl-terminated polydimethylsiloxane, ethylene glycol, 3,5-pyridine dicarboxylic acid and terephthalic acid; the modified polyester is prepared by reacting the polyester with 4-chloromethylstyrene; the polyester fiber is prepared by melt spinning of the modified polyester and the modified titanium dioxide; the fiber fabric is prepared by weaving the polyester fiber; the polyester prepared by condensation polymerization of hydroxypropyl-terminated polydimethylsiloxane, ethylene glycol, 3,5-pyridine dicarboxylic acid and terephthalic acid contains a large number of siloxane structures, and the silicon dioxide formed after combustion is attached to the surface of the fabric to block the contact between the fabric and the flame, thereby further improving the flame retardation performance of the antibacterial and deodorization functional fabric; meanwhile, the polyester also has a large number of pyridine groups to undergo quaternization reaction with 4-chloromethylstyrene to generate pyridine quaternary ammonium salt with good antibacterial performance, thereby improving the antibacterial performance of the antibacterial and deodorization functional fabric; meanwhile, the double bond is introduced on the polyester to react with the double bond on the modified titanium dioxide to form a crosslinked network structure, thereby improving the mechanical performance of the antibacterial and deodorization functional fabric.

[0030] Finally, β-cyclodextrin is reacted with monochloroacetic acid to obtain carboxylated β-cyclodextrin; carboxylated β-cyclodextrin is co-precipitated with tea polyphenols to obtain carboxylated β-cyclodextrin inclusion complex; cyclodextrin can adsorb odor molecules due to its unique cavity structure, thereby achieving a deodorizing effect and improving the deodorizing performance of antibacterial and deodorizing functional fabrics; utilizing the hydrophobic internal and hydrophilic external properties of cyclodextrin, tea polyphenols with hydrophobic groups can be included. Tea polyphenols is a natural antibacterial and deodorizing substance. The phenolic hydroxyl groups can combine with the hydrophilic end of the lipid bilayer to aggregate membrane lipids, causing cell membrane rupture, preventing the normal metabolic activities of bacteria, and causing the leakage of substances in the membrane, thereby making the cells The antibacterial and deodorizing functional fabrics are improved by the decay and aging of the fabrics. At the same time, tea polyphenols contain highly active hydroxyl groups, which can undergo oxidation-reduction, neutralization and other chemical reactions with odor molecules such as ammonia, and can completely eliminate odors, further improving the deodorizing performance of the antibacterial and deodorizing functional fabrics. The polyester fabric is mixed with an aqueous solution of sodium hydroxide to obtain an alkali-treated polyester fabric. The alkali-treated polyester fabric is immersed in an aqueous solution of a carboxylated β-cyclodextrin inclusion compound to obtain an antibacterial and deodorizing functional fabric. The alkali-treated polyester fabric contains a large number of hydroxyl groups, which undergo an esterification reaction with the carboxyl groups on the surface of the carboxylated β-cyclodextrin inclusion compound, thereby improving the mechanical properties of the antibacterial and deodorizing functional fabrics. DETAILED DESCRIPTION

[0031] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Example 1:

[0033] A method for preparing an antibacterial and deodorizing functional fabric comprises the following steps:

[0034] (1) mixing 1-(triethoxysilyl)methylamine, deionized water and ethanol in a mass ratio of 1:2:8 uniformly, adding glacial acetic acid to adjust the pH to 5, stirring at room temperature at 200 r / min for 3 h to prepare 1-(triethoxysilyl)methylamine hydrolyzate; mixing titanium dioxide and toluene in a mass ratio of 1:3 uniformly, ultrasonic dispersion for 20 min, adding 1-(triethoxysilyl)methylamine hydrolyzate in an amount of 1.6 times the mass of titanium dioxide, stirring at 65℃ at 200 r / min for 4 h, rotary evaporation to remove the solvent, vacuum drying at 75℃ for 10 h to prepare pre-modified titanium dioxide; mixing the pre-modified titanium dioxide, diallyl chlorophosphate, triethylamine and N,N-dimethylformamide in a mass ratio of 1:1:0.6:12 uniformly under a nitrogen atmosphere, stirring at 50℃ at 200 r / min for 10 h, removing the solvent by distillation under reduced pressure, washing with deionized water 4 times, vacuum drying at 40℃ for 10 h to prepare modified titanium dioxide;

[0035] (2) mixing hydroxypropyl-terminated polydimethylsiloxane, ethylene glycol, 3,5-pyridine dicarboxylic acid, terephthalic acid, ethylene glycol antimony and trimethyl phosphate in a mass ratio of 1:0.2:0.5:0.4:0.0001:0.0001 uniformly, performing esterification reaction at a pressure of 0.3 MPa and a reaction temperature of 230℃, with the top temperature of the fractionating column being 125℃, when the water output reaches 95% of the theoretical water output, increasing the temperature to 265℃, the vacuum degree being 40 Pa, stopping stirring when the stirring power reaches 240 W, breaking the vacuum to discharge the material, to prepare a polyester; mixing the polyester, 4-chloromethylstyrene and N,N-dimethylformamide in a mass ratio of 1:2:15 uniformly, stirring at 85℃ at 200 r / min for 10 h, cooling to room temperature, mixing with ethyl acetate in an amount of 20 times the mass of the polyester uniformly, filtering and washing with ethyl acetate 2 times, vacuum drying at 50℃ for 10 h to prepare a modified polyester;

[0036] (3) mixing the modified polyester, the modified titanium dioxide and azobis isobutyronitrile in a mass ratio of 1:0.05:0.001 uniformly, melting and spinning in a twin-screw spinning machine, the specifications of the spinneret plate being 0.35 mm x 34 f, the length-diameter ratio of the spinning hole being 1:2, the spinning speed being 800 m / min, the temperature of the first zone being 280℃, the temperature of the second zone being 290℃, the temperature of the third zone being 295℃, the temperature of the fourth zone being 290℃, the temperature of the metering pump being 290℃, the temperature of the assembly being 290℃, the temperature of the elbow being 290℃, and the temperature of the spinning head being 290℃, to prepare nascent polyester fibers; stretching the nascent polyester fibers on a parallel drafting machine, the temperature of the hot box being 75℃, the temperature of the hot plate being 150℃, the stretching take-up speed being 200 m / min, and the draw ratio being 3.4, to prepare polyester fibers; weaving the polyester fibers into a polyester fabric by a textile machine;

[0037] (4) mixing β-cyclodextrin, sodium hydroxide and deionized water in a mass ratio of 1:1:6, stirring at 45°C and 200 r / min for 10 min, adding monochloroacetic acid in an amount of 1.15 times the mass of β-cyclodextrin, stirring at 75°C and 200 r / min for 6 h, cooling to room temperature, adjusting the pH to 2 with 20 wt% hydrochloric acid solution, adding the solution to methanol at a rate of 5 ml / min, standing for 10 min, filtering with a cellulose acetate filter membrane, and vacuum drying at 40°C for 10 h to obtain carboxylated β-cyclodextrin; mixing the carboxylated β-cyclodextrin, deionized water and anhydrous ethanol in a mass ratio of 1:14:7 at 55°C to obtain a carboxylated β-cyclodextrin solution; mixing tea polyphenols and anhydrous ethanol in a mass ratio of 1:18 to obtain a tea polyphenol solution; adding the tea polyphenol solution to the carboxylated β-cyclodextrin solution at a rate of 5 ml / min at 45°C, with a mass ratio of 1:2.5, stirring at 200 rpm in the dark for 14 h, standing at 2°C for 20 h, filtering and washing twice with anhydrous ethanol, and vacuum drying at 20°C for 10 h to obtain a carboxylated β-cyclodextrin inclusion compound;

[0038] (5) mixing the carboxylated β-cyclodextrin inclusion compound, deionized water and sodium hypophosphite in a mass ratio of 1:15:0.002 to obtain a carboxylated β-cyclodextrin inclusion compound aqueous solution; immersing the polyester fabric in a 2 wt% sodium hydroxide aqueous solution, standing at 85°C for 40 min, washing twice with deionized water, and vacuum drying at 40°C for 2 h to obtain an alkali-treated polyester fabric; immersing the alkali-treated polyester fabric in the carboxylated β-cyclodextrin inclusion compound aqueous solution, standing for 1 h, drying in an oven at 90°C for 4 h, and high-temperature baking at 160°C for 4 min to obtain an antibacterial and deodorant functional fabric.

[0039] Example 2:

[0040] A method for preparing an antibacterial and deodorant functional fabric, comprising the following preparation steps:

[0041] (1) mixing 1-(triethoxysilyl)methylamine, deionized water and ethanol in a mass ratio of 1:2:8 uniformly, adding glacial acetic acid to adjust the pH to 5.5, stirring at room temperature at 250 r / min for 3.5 h to prepare a 1-(triethoxysilyl)methylamine hydrolysis solution; mixing titanium dioxide and toluene in a mass ratio of 1:3.1 uniformly, ultrasonic dispersing for 30 min, adding 1.7 times the mass of the titanium dioxide of the 1-(triethoxysilyl)methylamine hydrolysis solution, stirring at 70°C at 250 r / min for 4.5 h, removing the solvent by rotary evaporation, and vacuum drying at 80°C for 11 h to prepare a pre-modified titanium dioxide; mixing the pre-modified titanium dioxide, diallyl chlorophosphate, triethylamine and N,N-dimethylformamide in a mass ratio of 1:1.5:0.8:13 uniformly under a nitrogen atmosphere, stirring at 55°C at 250 r / min for 11 h, removing the solvent by distillation under reduced pressure, washing with deionized water for 5 times, and vacuum drying at 45°C for 11 h to prepare a modified titanium dioxide;

[0042] (2) mixing hydroxypropyl-terminated polydimethylsiloxane, ethylene glycol, 3,5-pyridinedicarboxylic acid, terephthalic acid, ethylene glycol antimony and trimethyl phosphate in a mass ratio of 1:0.25:0.6:0.5:0.00015:0.00015 uniformly, performing esterification reaction at a pressure of 0.35 MPa and a reaction temperature of 240°C, when the water output reaches 95% of the theoretical water output, increasing the temperature to 270°C, and vacuuming at a stirring power of 240 W to discharge the material to prepare a polyester; mixing the polyester, 4-chloromethylstyrene and N,N-dimethylformamide in a mass ratio of 1:2.5:18 uniformly, stirring at 90°C at 250 r / min for 11 h, cooling to room temperature, mixing with 25 times the mass of the polyester of ethyl acetate uniformly, filtering and washing with ethyl acetate for 3 times, and vacuum drying at 55°C for 11 h to prepare a modified polyester;

[0043] (3) mixing the modified polyester, the modified titanium dioxide and azobisisobutyronitrile in a mass ratio of 1:0.055:0.0015 uniformly, adding into a twin-screw spinning machine to melt spinning, the specifications of the spinneret plate are 0.35 mm x 34 f, the length-diameter ratio of the spinning hole is 1:2, the spinning speed is 800 m / min, the temperature of the first zone is 285°C, the temperature of the second zone is 295°C, the temperature of the third zone is 300°C, the temperature of the fourth zone is 295°C, the temperature of the metering pump is 295°C, the temperature of the assembly is 295°C, the temperature of the elbow pipe is 295°C, and the temperature of the spinning head is 292°C to prepare a nascent polyester fiber; stretching the nascent polyester fiber on a parallel drafting machine, the temperature of the hot box is 75°C, the temperature of the hot plate is 150°C, the stretching winding speed is 200 m / min, and the stretching multiple is 3.6 to prepare a polyester fiber; weaving the polyester fiber into a polyester fabric through a textile machine;

[0044] (4) mixing β-cyclodextrin, sodium hydroxide and deionized water in a mass ratio of 1:1.05:6.3, stirring at 50°C and 250 r / min for 15 min, adding monochloroacetic acid in an amount of 1.2 times the mass of β-cyclodextrin, stirring at 80°C and 250 r / min for 7 h, cooling to room temperature, adjusting the pH to 2 with 20 wt% hydrochloric acid solution, adding the solution to methanol at a rate of 5 ml / min, standing for 12 min, filtering with a cellulose acetate filter membrane, and vacuum drying at 45°C for 11 h to obtain carboxylated β-cyclodextrin; mixing the carboxylated β-cyclodextrin, deionized water and anhydrous ethanol in a mass ratio of 1:15:7.5 at 60°C to obtain a carboxylated β-cyclodextrin solution; mixing tea polyphenols and anhydrous ethanol in a mass ratio of 1:20 to obtain a tea polyphenol solution; adding the tea polyphenol solution to the carboxylated β-cyclodextrin solution at a rate of 5 ml / min at 50°C, with a mass ratio of 1:3, stirring at 200 rpm in the dark for 15 h, standing at 4°C for 22 h, filtering and washing with anhydrous ethanol three times, and vacuum drying at 25°C for 11 h to obtain a carboxylated β-cyclodextrin inclusion compound;

[0045] (5) mixing the carboxylated β-cyclodextrin inclusion compound, deionized water and sodium hypophosphite in a mass ratio of 1:18:0.003 to obtain a carboxylated β-cyclodextrin inclusion compound aqueous solution; immersing the polyester fabric in a 2 wt% sodium hydroxide aqueous solution, standing at 90°C for 50 min, washing with deionized water three times, and vacuum drying at 45°C for 3 h to obtain an alkali-treated polyester fabric; immersing the alkali-treated polyester fabric in the carboxylated β-cyclodextrin inclusion compound aqueous solution, standing for 1.5 h, drying in an oven at 95°C for 5 h, and high-temperature baking at 165°C for 5 min to obtain an antibacterial and deodorant functional fabric.

[0046] Example 3:

[0047] A method for preparing an antibacterial and deodorant functional fabric, comprising the following preparation steps:

[0048] (1) mixing 1-(triethoxysilyl)methylamine, deionized water and ethanol in a mass ratio of 1:2:8 uniformly, adding glacial acetic acid to adjust the pH to 6, stirring at room temperature at 300 r / min for 4 h to prepare 1-(triethoxysilyl)methylamine hydrolyzate; mixing titanium dioxide and toluene in a mass ratio of 1:3.2 uniformly, ultrasonic dispersion for 40 min, adding 1-(triethoxysilyl)methylamine hydrolyzate in an amount of 1.8 times the mass of titanium dioxide, stirring at 75℃ at 300 r / min for 5 h, rotary evaporation to remove the solvent, vacuum drying at 85℃ for 12 h to prepare pre-modified titanium dioxide; mixing the pre-modified titanium dioxide, diallyl chlorophosphate, triethylamine and N,N-dimethylformamide in a mass ratio of 1:2:1:15 uniformly under a nitrogen atmosphere, stirring at 60℃ at 300 r / min for 12 h, removing the solvent by distillation under reduced pressure, washing with deionized water for 6 times, vacuum drying at 50℃ for 12 h to prepare modified titanium dioxide;

[0049] (2) mixing hydroxypropyl-terminated polydimethylsiloxane, ethylene glycol, 3,5-pyridine dicarboxylic acid, terephthalic acid, ethylene glycol antimony and trimethyl phosphate in a mass ratio of 1:0.3:0.7:0.6:0.0002:0.0002 uniformly, performing esterification reaction at a pressure of 0.4 MPa and a reaction temperature of 250℃, when the water output reaches 95% of the theoretical water output, increasing the temperature to 275℃, the vacuum degree is 60 Pa, stopping stirring when the stirring power reaches 240 W, breaking the vacuum to discharge the material to prepare a polyester; mixing the polyester, 4-chloromethylstyrene and N,N-dimethylformamide in a mass ratio of 1:3:20 uniformly, stirring at 95℃ at 300 r / min for 12 h, cooling to room temperature, mixing with ethyl acetate in an amount of 30 times the mass of the polyester uniformly, filtering and washing with ethyl acetate for 4 times, vacuum drying at 60℃ for 12 h to prepare a modified polyester;

[0050] (3) mixing the modified polyester, the modified titanium dioxide and azobis isobutyronitrile in a mass ratio of 1:0.06:0.002 uniformly, melting spinning in a twin-screw spinning machine, the specifications of the spinneret plate are 0.35 mm x 34 f, the length-diameter ratio of the spinning hole is 1:2, the spinning speed is 800 m / min, the temperature of the first zone is 290℃, the temperature of the second zone is 300℃, the temperature of the third zone is 305℃, the temperature of the fourth zone is 300℃, the temperature of the metering pump is 300℃, the temperature of the assembly is 300℃, the temperature of the elbow pipe is 300℃, and the temperature of the spinning head is 295℃ to prepare nascent polyester fibers; stretching the nascent polyester fibers on a parallel drafting machine, the temperature of the hot box is 75℃, the temperature of the hot plate is 150℃, the stretching winding speed is 200 m / min, and the draw ratio is 3.8 to prepare polyester fibers; weaving the polyester fibers into a polyester fabric through a textile machine;

[0051] (4) mixing β-cyclodextrin, sodium hydroxide and deionized water in a mass ratio of 1:1.1:6.5, stirring at 55°C and 300 r / min for 20 min, adding monochloroacetic acid in an amount of 1.25 times the mass of β-cyclodextrin, stirring at 85°C and 300 r / min for 8 h, cooling to room temperature, adjusting the pH to 2 with 20 wt% hydrochloric acid solution, adding at a rate of 5 ml / min, standing for 15 min, filtering with a cellulose acetate filter membrane, and vacuum drying at 50°C for 12 h to obtain carboxylated β-cyclodextrin; mixing carboxylated β-cyclodextrin, deionized water and anhydrous ethanol in a mass ratio of 1:16:8 at 65°C to obtain a carboxylated β-cyclodextrin solution; mixing tea polyphenols and anhydrous ethanol in a mass ratio of 1:22 to obtain a tea polyphenol solution; adding the tea polyphenol solution to the carboxylated β-cyclodextrin solution at a mass ratio of 1:3.5 at a rate of 5 ml / min at 55°C, stirring at 200 rpm in the dark for 16 h, standing at 6°C for 24 h, filtering and washing 4 times with anhydrous ethanol, and vacuum drying at 30°C for 12 h to obtain a carboxylated β-cyclodextrin inclusion compound;

[0052] (5) mixing the carboxylated β-cyclodextrin inclusion compound, deionized water and sodium hypophosphite in a mass ratio of 1:20:0.004 to obtain a carboxylated β-cyclodextrin inclusion compound aqueous solution; immersing the polyester fabric in a 2 wt% sodium hydroxide aqueous solution, standing at 95°C for 60 min, washing 4 times with deionized water, and vacuum drying at 50°C for 4 h to obtain an alkali-treated polyester fabric; immersing the alkali-treated polyester fabric in the carboxylated β-cyclodextrin inclusion compound aqueous solution, standing for 2 h, drying in an oven at 100°C for 6 h, and high-temperature baking at 170°C for 6 min to obtain an antibacterial and deodorant functional fabric.

[0053] Comparative Example 1

[0054] The preparation method of the antibacterial and deodorant functional fabric of Comparative Example 1 is different from that of Example 2 in step (4). Step (4) is modified as follows: β-cyclodextrin, sodium hydroxide and deionized water are uniformly mixed in a mass ratio of 1:1.05:6.3, stirred at 50°C and 250 r / min for 15 min, 0.8 times the mass of β-cyclodextrin of monochloroacetic acid is added, stirred at 80°C and 250 r / min for 7 h of reaction, cooled to room temperature, adjusted to pH 2 with 20 wt% hydrochloric acid aqueous solution, uniformly added at a rate of 5 ml / min into 40 times the mass of β-cyclodextrin of methanol, stood for 12 min, filtered with cellulose acetate filter membrane, vacuum dried at 45°C for 11 h to prepare carboxylated β-cyclodextrin; carboxylated β-cyclodextrin, deionized water and anhydrous ethanol are uniformly mixed in a mass ratio of 1:15:7.5 at 60°C to prepare a carboxylated β-cyclodextrin solution; tea polyphenol and anhydrous ethanol are uniformly mixed in a mass ratio of 1:20 to prepare a tea polyphenol solution; the tea polyphenol solution is uniformly added into the carboxylated β-cyclodextrin solution at a dropping rate of 5 ml / min at 50°C with a mass ratio of 1:3, stirred at 200 rpm in the dark for 15 h, stood at 4°C for 22 h, filtered and washed with anhydrous ethanol for 3 times, vacuum dried at 25°C for 11 h to prepare a carboxylated β-cyclodextrin inclusion compound. The remaining steps are the same as those of Example 2.

[0055] Comparative Example 2:

[0056] The preparation method of the antibacterial and deodorant functional fabric of Comparative Example 2 is different from that of Example 2 in step (4). Step (4) is modified as follows: β-cyclodextrin, sodium hydroxide and deionized water are uniformly mixed in a mass ratio of 1:1.05:6.3, stirred at 50°C and 250 r / min for 15 min, 1 times the mass of β-cyclodextrin of monochloroacetic acid is added, stirred at 80°C and 250 r / min for 7 h of reaction, cooled to room temperature, adjusted to pH 2 with 20 wt% hydrochloric acid aqueous solution, uniformly added at a rate of 5 ml / min into 40 times the mass of β-cyclodextrin of methanol, stood for 12 min, filtered with cellulose acetate filter membrane, vacuum dried at 45°C for 11 h to prepare carboxylated β-cyclodextrin; carboxylated β-cyclodextrin, deionized water and anhydrous ethanol are uniformly mixed in a mass ratio of 1:15:7.5 at 60°C to prepare a carboxylated β-cyclodextrin solution; tea polyphenol and anhydrous ethanol are uniformly mixed in a mass ratio of 1:20 to prepare a tea polyphenol solution; the tea polyphenol solution is uniformly added into the carboxylated β-cyclodextrin solution at a dropping rate of 5 ml / min at 50°C with a mass ratio of 1:3, stirred at 200 rpm in the dark for 15 h, stood at 4°C for 22 h, filtered and washed with anhydrous ethanol for 3 times, vacuum dried at 25°C for 11 h to prepare a carboxylated β-cyclodextrin inclusion compound. The remaining steps are the same as those of Example 2.

[0057] Comparative Example 3:

[0058] The preparation method of the antibacterial and deodorant functional fabric of Comparative Example 3 is different from that of Example 2 in that step (4) is modified as follows: β-cyclodextrin, sodium hydroxide, and deionized water are mixed uniformly at a mass ratio of 1:1.05:6.3, stirred at 50°C and 250 r / min for 15 min, 1.4 times the mass of β-cyclodextrin of monochloroacetic acid is added, stirred at 80°C and 250 r / min for 7 h, cooled to room temperature, the pH is adjusted to 2 with 20 wt% hydrochloric acid aqueous solution, added at a rate of 5 ml / min, placed for 12 min, filtered with cellulose acetate filter membrane, vacuum dried at 45°C for 11 h, to obtain carboxylated β-cyclodextrin; carboxylated β-cyclodextrin, deionized water, and anhydrous ethanol are mixed uniformly at a mass ratio of 1:15:7.5 at 60°C to obtain a carboxylated β-cyclodextrin solution; tea polyphenol and anhydrous ethanol are mixed uniformly at a mass ratio of 1:20 to obtain a tea polyphenol solution; the tea polyphenol solution is added to the carboxylated β-cyclodextrin solution at a mass ratio of 1:3 at a drop rate of 5 ml / min at 50°C, stirred at 200 rpm in the dark for 15 h, placed at 4°C for 22 h, filtered and washed with anhydrous ethanol 3 times, vacuum dried at 25°C for 11 h, to obtain a carboxylated β-cyclodextrin inclusion compound. The remaining steps are the same as those of Example 2.

[0059] Comparative Example 4:

[0060] The preparation method of the antibacterial and deodorant functional fabric of Comparative Example 4 is different from that of Example 2 in that step (4) is different. Step (4) is modified as follows: β-cyclodextrin, sodium hydroxide, and deionized water are uniformly mixed in a mass ratio of 1:1.05:6.3, stirred at 50°C and 250 r / min for 15 min, 1.6 times the mass of β-cyclodextrin of monochloroacetic acid is added, stirred at 80°C and 250 r / min for 7 h of reaction, cooled to room temperature, the pH is adjusted to 2 with 20 wt% hydrochloric acid aqueous solution, added at a rate of 5 ml / min, added to 40 times the mass of β-cyclodextrin of methanol, stood for 12 min, filtered with a cellulose acetate filter membrane, and vacuum dried at 45°C for 11 h to obtain carboxylated β-cyclodextrin; carboxylated β-cyclodextrin, deionized water, and anhydrous ethanol are uniformly mixed in a mass ratio of 1:15:7.5 at 60°C to obtain a carboxylated β-cyclodextrin solution; tea polyphenol and anhydrous ethanol are uniformly mixed in a mass ratio of 1:20 to obtain a tea polyphenol solution; the tea polyphenol solution is added to the carboxylated β-cyclodextrin solution at a mass ratio of 1:3 of the tea polyphenol solution to the carboxylated β-cyclodextrin solution at a drop rate of 5 ml / min at 50°C, stirred at 200 rpm in the dark for 15 h, stood at 4°C for 22 h, filtered and washed with anhydrous ethanol 3 times, and vacuum dried at 25°C for 11 h to obtain a carboxylated β-cyclodextrin inclusion compound. The remaining steps are the same as in Example 2.

[0061] Comparative Example 5:

[0062] The preparation method of the antibacterial and deodorant functional fabric of Comparative Example 5 is different from that of Example 2 in that step (4) is different. Step (4) is modified as follows: β-cyclodextrin, sodium hydroxide, and deionized water are uniformly mixed in a mass ratio of 1:0.8:6.3, stirred at 50°C and 250 r / min for 15 min, 1.2 times the mass of β-cyclodextrin of monochloroacetic acid is added, stirred at 80°C and 250 r / min for 7 h of reaction, cooled to room temperature, the pH is adjusted to 2 with 20 wt% hydrochloric acid aqueous solution, added at a rate of 5 ml / min, added to 40 times the mass of β-cyclodextrin of methanol, stood for 12 min, filtered with a cellulose acetate filter membrane, and vacuum dried at 45°C for 11 h to obtain carboxylated β-cyclodextrin; carboxylated β-cyclodextrin, deionized water, and anhydrous ethanol are uniformly mixed in a mass ratio of 1:15:7.5 at 60°C to obtain a carboxylated β-cyclodextrin solution; tea polyphenol and anhydrous ethanol are uniformly mixed in a mass ratio of 1:20 to obtain a tea polyphenol solution; the tea polyphenol solution is added to the carboxylated β-cyclodextrin solution at a mass ratio of 1:3 of the tea polyphenol solution to the carboxylated β-cyclodextrin solution at a drop rate of 5 ml / min at 50°C, stirred at 200 rpm in the dark for 15 h, stood at 4°C for 22 h, filtered and washed with anhydrous ethanol 3 times, and vacuum dried at 25°C for 11 h to obtain a carboxylated β-cyclodextrin inclusion compound. The remaining steps are the same as in Example 2.

[0063] Comparative Example 6:

[0064] The preparation method of the antibacterial and deodorant functional fabric of Comparative Example 6 is different from that of Example 2 in that step (4) is modified as follows: β-cyclodextrin, sodium hydroxide, and deionized water are mixed uniformly at a mass ratio of 1:0.9:6.3, stirred at 50°C and 250 r / min for 15 min, 1.2 times the mass of β-cyclodextrin of monochloroacetic acid is added, stirred at 80°C and 250 r / min for 7 h, cooled to room temperature, the pH is adjusted to 2 with 20 wt% hydrochloric acid aqueous solution, added at a rate of 5 ml / min, placed for 12 min, filtered with a cellulose acetate filter membrane, vacuum dried at 45°C for 11 h, and carboxylated β-cyclodextrin is prepared; carboxylated β-cyclodextrin, deionized water, and anhydrous ethanol are mixed uniformly at a mass ratio of 1:15:7.5 at 60°C to prepare a carboxylated β-cyclodextrin solution; tea polyphenol and anhydrous ethanol are mixed uniformly at a mass ratio of 1:20 to prepare a tea polyphenol solution; the tea polyphenol solution is added to the carboxylated β-cyclodextrin solution at a mass ratio of 1:3 at a drop rate of 5 ml / min at 50°C, stirred at 200 rpm in the dark for 15 h, placed at 4°C for 22 h, filtered and washed with anhydrous ethanol 3 times, vacuum dried at 25°C for 11 h, and a carboxylated β-cyclodextrin inclusion compound is prepared. The remaining steps are the same as in Example 2.

[0065] Comparative Example 7:

[0066] The preparation method of the antibacterial and deodorant functional fabric of Comparative Example 7 is different from that of Example 2 in that step (4) is modified as follows: the β-cyclodextrin, sodium hydroxide and deionized water are mixed uniformly at a mass ratio of 1:1.2:6.3, stirred at 50°C and 250 r / min for 15 min, 1.2 times the mass of β-cyclodextrin of monochloroacetic acid is added, stirred at 80°C and 250 r / min for 7 h of reaction, cooled to room temperature, the pH is adjusted to 2 with 20 wt% hydrochloric acid aqueous solution, added at a rate of 5 ml / min, added to 40 times the mass of β-cyclodextrin of methanol, stood for 12 min, filtered with a cellulose acetate filter membrane, vacuum dried at 45°C for 11 h to prepare carboxylated β-cyclodextrin; the carboxylated β-cyclodextrin, deionized water and anhydrous ethanol are mixed uniformly at a mass ratio of 1:15:7.5 at 60°C to prepare a carboxylated β-cyclodextrin solution; the tea polyphenol and anhydrous ethanol are mixed uniformly at a mass ratio of 1:20 to prepare a tea polyphenol solution; the tea polyphenol solution is added to the carboxylated β-cyclodextrin solution at a mass ratio of 1:3 of the tea polyphenol solution to the carboxylated β-cyclodextrin solution at a drop rate of 5 ml / min at 50°C, stirred at 200 rpm in the dark for 15 h, stood at 4°C for 22 h, filtered and washed with anhydrous ethanol for 3 times, vacuum dried at 25°C for 11 h to prepare a carboxylated β-cyclodextrin inclusion compound. The remaining steps are the same as those of Example 2.

[0067] Comparative Example 8:

[0068] The preparation method of the antibacterial and deodorant functional fabric of Comparative Example 8 is different from that of Example 2 in that step (4) is modified as follows: the β-cyclodextrin, sodium hydroxide and deionized water are mixed uniformly at a mass ratio of 1:1.3:6.3, stirred at 50°C and 250 r / min for 15 min, 1.2 times the mass of β-cyclodextrin of monochloroacetic acid is added, stirred at 80°C and 250 r / min for 7 h of reaction, cooled to room temperature, the pH is adjusted to 2 with 20 wt% hydrochloric acid aqueous solution, added at a rate of 5 ml / min, added to 40 times the mass of β-cyclodextrin of methanol, stood for 12 min, filtered with a cellulose acetate filter membrane, vacuum dried at 45°C for 11 h to prepare carboxylated β-cyclodextrin; the carboxylated β-cyclodextrin, deionized water and anhydrous ethanol are mixed uniformly at a mass ratio of 1:15:7.5 at 60°C to prepare a carboxylated β-cyclodextrin solution; the tea polyphenol and anhydrous ethanol are mixed uniformly at a mass ratio of 1:20 to prepare a tea polyphenol solution; the tea polyphenol solution is added to the carboxylated β-cyclodextrin solution at a mass ratio of 1:3 of the tea polyphenol solution to the carboxylated β-cyclodextrin solution at a drop rate of 5 ml / min at 50°C, stirred at 200 rpm in the dark for 15 h, stood at 4°C for 22 h, filtered and washed with anhydrous ethanol for 3 times, vacuum dried at 25°C for 11 h to prepare a carboxylated β-cyclodextrin inclusion compound. The remaining steps are the same as those of Example 2.

[0069] Comparative Example 9:

[0070] The preparation method of the antibacterial and deodorant functional fabric of Comparative Example 9 is different from that of Example 2 in that step (4) is modified as follows: β-cyclodextrin, sodium hydroxide, and deionized water are mixed uniformly at a mass ratio of 1:1.05:6.3, stirred at 50°C and 250 r / min for 15 min, 1.2 times the mass of β-cyclodextrin of monochloroacetic acid is added, stirred at 80°C and 250 r / min for 3 h, cooled to room temperature, the pH is adjusted to 2 with 20 wt% hydrochloric acid aqueous solution, added at a rate of 5 ml / min, placed for 12 min, filtered with cellulose acetate filter membrane, vacuum dried at 45°C for 11 h, to obtain carboxylated β-cyclodextrin; carboxylated β-cyclodextrin, deionized water, and anhydrous ethanol are mixed uniformly at a mass ratio of 1:15:7.5 at 60°C to obtain a carboxylated β-cyclodextrin solution; tea polyphenol and anhydrous ethanol are mixed uniformly at a mass ratio of 1:20 to obtain a tea polyphenol solution; the tea polyphenol solution is added to the carboxylated β-cyclodextrin solution at a mass ratio of 1:3 at a drop rate of 5 ml / min at 50°C, stirred at 200 rpm in the dark for 15 h, placed at 4°C for 22 h, filtered and washed with anhydrous ethanol 3 times, vacuum dried at 25°C for 11 h, to obtain a carboxylated β-cyclodextrin inclusion compound. The remaining steps are the same as those of Example 2.

[0071] Comparative Example 10:

[0072] The preparation method of the antibacterial and deodorant functional fabric of Comparative Example 10 is different from that of Example 2 in that step (4) is modified as follows: β-cyclodextrin, sodium hydroxide and deionized water are mixed uniformly at a mass ratio of 1:1.05:6.3, stirred at 50°C and 250 r / min for 15 min, 1.2 times the mass of β-cyclodextrin of monochloroacetic acid is added, stirred at 80°C and 250 r / min for 5 h, cooled to room temperature, the pH is adjusted to 2 with 20 wt% hydrochloric acid aqueous solution, added at a rate of 5 ml / min, placed for 12 min, filtered with cellulose acetate filter membrane, vacuum dried at 45°C for 11 h to obtain carboxylated β-cyclodextrin; carboxylated β-cyclodextrin, deionized water and anhydrous ethanol are mixed uniformly at a mass ratio of 1:15:7.5 at 60°C to obtain a carboxylated β-cyclodextrin solution; tea polyphenol and anhydrous ethanol are mixed uniformly at a mass ratio of 1:20 to obtain a tea polyphenol solution; the tea polyphenol solution is added to the carboxylated β-cyclodextrin solution at a mass ratio of 1:3 at a drop rate of 5 ml / min at 50°C, stirred at 200 rpm in the dark for 15 h, placed at 4°C for 22 h, filtered and washed with anhydrous ethanol 3 times, vacuum dried at 25°C for 11 h to obtain a carboxylated β-cyclodextrin inclusion compound. The remaining steps are the same as those of Example 2.

[0073] Comparative Example 11:

[0074] The preparation method of the antibacterial and deodorant functional fabric of Comparative Example 11 is different from that of Example 2 in that step (4) is modified as follows: β-cyclodextrin, sodium hydroxide and deionized water are mixed uniformly at a mass ratio of 1:1.05:6.3, stirred at 50°C and 250 r / min for 15 min, 1.2 times the mass of β-cyclodextrin of monochloroacetic acid is added, stirred at 80°C and 250 r / min for 9 h, cooled to room temperature, the pH is adjusted to 2 with 20 wt% hydrochloric acid aqueous solution, added at a rate of 5 ml / min, placed for 12 min, filtered with cellulose acetate filter membrane, vacuum dried at 45°C for 11 h to obtain carboxylated β-cyclodextrin; carboxylated β-cyclodextrin, deionized water and anhydrous ethanol are mixed uniformly at a mass ratio of 1:15:7.5 at 60°C to obtain a carboxylated β-cyclodextrin solution; tea polyphenol and anhydrous ethanol are mixed uniformly at a mass ratio of 1:20 to obtain a tea polyphenol solution; the tea polyphenol solution is added to the carboxylated β-cyclodextrin solution at a mass ratio of 1:3 at a drop rate of 5 ml / min at 50°C, stirred at 200 rpm in the dark for 15 h, placed at 4°C for 22 h, filtered and washed with anhydrous ethanol 3 times, vacuum dried at 25°C for 11 h to obtain a carboxylated β-cyclodextrin inclusion compound. The remaining steps are the same as those of Example 2.

[0075] Comparative Example 12:

[0076] The preparation method of the antibacterial and deodorant functional fabric of Comparative Example 12 is different from that of Example 2 in that step (4) is modified as follows: β-cyclodextrin, sodium hydroxide and deionized water are mixed uniformly at a mass ratio of 1:1.05:6.3, stirred at 50°C and 250 r / min for 15 min, 1.2 times the mass of β-cyclodextrin of monochloroacetic acid is added, stirred at 80°C and 250 r / min for 11 h, cooled to room temperature, the pH is adjusted to 2 with 20 wt% hydrochloric acid aqueous solution, added at a rate of 5 ml / min, placed for 12 min, filtered with cellulose acetate filter membrane, vacuum dried at 45°C for 11 h to obtain carboxylated β-cyclodextrin; carboxylated β-cyclodextrin, deionized water and anhydrous ethanol are mixed uniformly at a mass ratio of 1:15:7.5 at 60°C to obtain a carboxylated β-cyclodextrin solution; tea polyphenol and anhydrous ethanol are mixed uniformly at a mass ratio of 1:20 to obtain a tea polyphenol solution; the tea polyphenol solution is added to the carboxylated β-cyclodextrin solution at a mass ratio of 1:3 at a drop rate of 5 ml / min at 50°C, stirred at 200 rpm in the dark for 15 h, placed at 4°C for 22 h, filtered and washed with anhydrous ethanol 3 times, vacuum dried at 25°C for 11 h to obtain a carboxylated β-cyclodextrin inclusion compound. The remaining steps are the same as those of Example 2.

[0077] Comparative Example 13:

[0078] The preparation method of the antibacterial and deodorant functional fabric of Comparative Example 13 is different from that of Example 2 in that step (4) is modified as follows: β-cyclodextrin, sodium hydroxide and deionized water are mixed uniformly at a mass ratio of 1:1.05:6.3, stirred at 50°C and 250 r / min for 15 min, 1.2 times the mass of β-cyclodextrin of monochloroacetic acid is added, stirred at 55°C and 250 r / min for 7 h, cooled to room temperature, the pH is adjusted to 2 with 20 wt% hydrochloric acid aqueous solution, added at a rate of 5 ml / min, placed for 12 min, filtered with cellulose acetate filter membrane, vacuum dried at 45°C for 11 h to obtain carboxylated β-cyclodextrin; carboxylated β-cyclodextrin, deionized water and anhydrous ethanol are mixed uniformly at a mass ratio of 1:15:7.5 at 60°C to obtain a carboxylated β-cyclodextrin solution; tea polyphenol and anhydrous ethanol are mixed uniformly at a mass ratio of 1:20 to obtain a tea polyphenol solution; the tea polyphenol solution is added to the carboxylated β-cyclodextrin solution at a mass ratio of 1:3 at a drop rate of 5 ml / min at 50°C, stirred at 200 rpm in the dark for 15 h, placed at 4°C for 22 h, filtered and washed with anhydrous ethanol 3 times, vacuum dried at 25°C for 11 h to obtain a carboxylated β-cyclodextrin inclusion compound. The remaining steps are the same as those of Example 2.

[0079] Comparative Example 14:

[0080] The preparation method of the antibacterial and deodorant functional fabric of Comparative Example 14 is different from that of Example 2 in that step (4) is modified as follows: β-cyclodextrin, sodium hydroxide and deionized water are mixed uniformly at a mass ratio of 1:1.05:6.3, stirred at 50°C and 250 r / min for 15 min, 1.2 times the mass of β-cyclodextrin of monochloroacetic acid is added, stirred at 65°C and 250 r / min for 7 h, cooled to room temperature, the pH is adjusted to 2 with 20 wt% hydrochloric acid aqueous solution, added at a rate of 5 ml / min, placed for 12 min, filtered with cellulose acetate filter membrane, vacuum dried at 45°C for 11 h to obtain carboxylated β-cyclodextrin; carboxylated β-cyclodextrin, deionized water and anhydrous ethanol are mixed uniformly at a mass ratio of 1:15:7.5 at 60°C to obtain a carboxylated β-cyclodextrin solution; tea polyphenol and anhydrous ethanol are mixed uniformly at a mass ratio of 1:20 to obtain a tea polyphenol solution; the tea polyphenol solution is added to the carboxylated β-cyclodextrin solution at a mass ratio of 1:3 at a drop rate of 5 ml / min at 50°C, stirred at 200 rpm in the dark for 15 h, placed at 4°C for 22 h, filtered and washed with anhydrous ethanol 3 times, vacuum dried at 25°C for 11 h to obtain a carboxylated β-cyclodextrin inclusion compound. The remaining steps are the same as those of Example 2.

[0081] Comparative Example 15:

[0082] The preparation method of the antibacterial and deodorant functional fabric of Comparative Example 15 is different from that of Example 2 in that step (4) is modified as follows: β-cyclodextrin, sodium hydroxide and deionized water are mixed uniformly at a mass ratio of 1:1.05:6.3, stirred at 50°C and 250 r / min for 15 min, 1.2 times the mass of β-cyclodextrin of monochloroacetic acid is added, stirred at 90°C and 250 r / min for 7 h, cooled to room temperature, the pH is adjusted to 2 with 20 wt% hydrochloric acid aqueous solution, added at a rate of 5 ml / min, placed for 12 min, filtered with cellulose acetate filter membrane, vacuum dried at 45°C for 11 h to obtain carboxylated β-cyclodextrin; carboxylated β-cyclodextrin, deionized water and anhydrous ethanol are mixed uniformly at a mass ratio of 1:15:7.5 at 60°C to obtain a carboxylated β-cyclodextrin solution; tea polyphenol and anhydrous ethanol are mixed uniformly at a mass ratio of 1:20 to obtain a tea polyphenol solution; the tea polyphenol solution is added to the carboxylated β-cyclodextrin solution at a mass ratio of 1:3 at a drop rate of 5 ml / min at 50°C, stirred at 200 rpm in the dark for 15 h, placed at 4°C for 22 h, filtered and washed with anhydrous ethanol 3 times, vacuum dried at 25°C for 11 h to obtain a carboxylated β-cyclodextrin inclusion compound. The remaining steps are the same as those of Example 2.

[0083] Comparative Example 16:

[0084] The preparation method of the antibacterial and deodorant functional fabric of Comparative Example 16 is different from that of Example 2 in that step (4) is modified as follows: the β-cyclodextrin, sodium hydroxide and deionized water are uniformly mixed in a mass ratio of 1:1.05:6.3, stirred at 50°C and 250 r / min for 15 min, 1.2 times the mass of β-cyclodextrin of monochloroacetic acid is added, stirred at 100°C and 250 r / min for 7 h of reaction, cooled to room temperature, the pH is adjusted to 2 with 20 wt% hydrochloric acid aqueous solution, uniformly added at a rate of 5 ml / min into 40 times the mass of β-cyclodextrin of methanol, left to stand for 12 min, filtered with a cellulose acetate filter membrane, and vacuum dried at 45°C for 11 h to obtain carboxylated β-cyclodextrin; the carboxylated β-cyclodextrin, deionized water and anhydrous ethanol are uniformly mixed in a mass ratio of 1:15:7.5 at 60°C to obtain a carboxylated β-cyclodextrin solution; the tea polyphenol and anhydrous ethanol are uniformly mixed in a mass ratio of 1:20 to obtain a tea polyphenol solution; the tea polyphenol solution is uniformly added into the carboxylated β-cyclodextrin solution at a dropping rate of 5 ml / min in a mass ratio of 1:3 of the tea polyphenol solution to the carboxylated β-cyclodextrin solution at 50°C, stirred at 200 rpm in the dark for 15 h, left to stand at 4°C for 22 h, filtered and washed with anhydrous ethanol for 3 times, and vacuum dried at 25°C for 11 h to obtain a carboxylated β-cyclodextrin inclusion compound. The remaining steps are the same as those of Example 2.

[0085] Comparative Example 17

[0086] The preparation method of the antibacterial and deodorant functional fabric of Comparative Example 17 is different from that of Example 2 in that step (1) is modified as follows: 1-(triethoxysilyl)methylamine, deionized water and ethanol are uniformly mixed in a mass ratio of 1:2:8, and glacial acetic acid is added to adjust the pH to 5.5, and the mixture is stirred at room temperature and 250 r / min for 3.5 h to obtain a 1-(triethoxysilyl)methylamine hydrolysis solution; titanium dioxide and toluene are uniformly mixed in a mass ratio of 1:3.1, ultrasonically dispersed for 30 min, and 1.7 times the mass of the 1-(triethoxysilyl)methylamine hydrolysis solution is added, and the mixture is stirred at 70°C and 250 r / min for 4.5 h of reaction, the solvent is removed by rotary evaporation, and vacuum dried at 80°C for 11 h to obtain modified titanium dioxide. The remaining steps are the same as those of Example 2.

[0087] Comparative Example 18

[0088] The preparation method of the antibacterial and deodorant functional fabric of Comparative Example 18 is different from that of Example 2 in that step (1) is not performed, and step (3) is modified as follows: the modified polyester, azobisisobutyronitrile are mixed uniformly at a mass ratio of 1:0.0015, and are added into a double-screw spinning machine for melt spinning, the spinneret specification is 0.35 mm x 34 f, the spinneret hole length-diameter ratio is 1:2, the spinning speed is 800 m / min, the temperature of zone 1 is 285℃, the temperature of zone 2 is 295℃, the temperature of zone 3 is 300℃, the temperature of zone 4 is 295℃, the metering pump temperature is 295℃, the assembly temperature is 295℃, the elbow temperature is 295℃, and the spinneret temperature is 292℃, to obtain the nascent polyester fiber; the nascent polyester fiber is stretched on a parallel drafting machine, the hot box temperature is 75℃, the hot plate temperature is 150℃, the stretching and winding speed is 200 m / min, and the stretching multiple is 3.6, to obtain the polyester fiber; the polyester fiber is woven into a polyester fabric through a textile machine. The other steps are the same as those in Example 2.

[0089] Comparative Example 19

[0090] The preparation method of the antibacterial and deodorant functional fabric of Comparative Example 19 is different from that of Example 2 in that step (2) is different, and step (2) is modified as follows: ethylene glycol, 3,5-pyridine dicarboxylic acid, terephthalic acid, antimony ethylene glycol, and trimethyl phosphate are mixed uniformly at a mass ratio of 1:1.3:1.2:0.00015:0.00015, esterification is performed at a pressure of 0.35 MPa and a reaction temperature of 240℃, the top temperature of the fractionating column is 130℃, when the water output reaches 95% of the theoretical water output, the temperature is increased to 270℃, the vacuum degree is 50 Pa, the stirring power is 240 W, the stirring is stopped, the vacuum is broken, and the material is discharged, to obtain the polyester; the polyester, 4-chloromethylstyrene, and N,N-dimethylformamide are mixed uniformly at a mass ratio of 1:2.5:18, stirring is performed at 90℃ and 250 r / min for 11 h, the temperature is cooled to room temperature, 25 times the mass of the polyester of ethyl acetate is added, mixed uniformly, filtered, washed with ethyl acetate for 3 times, and vacuum dried at 55℃ for 11 h, to obtain the modified polyester. The other steps are the same as those in Example 2.

[0091] Comparative Example 20

[0092] The preparation method of the antibacterial and deodorant functional fabric of Comparative Example 20 is different from that of Example 2 in that step (2) is modified as follows: the hydroxypropyl-terminated polydimethylsiloxane, ethylene glycol, 3,5-pyridine dicarboxylic acid, terephthalic acid, ethylene glycol antimony, and trimethyl phosphate are uniformly mixed at a mass ratio of 1:0.25:0.6:0.5:0.00015:0.00015, esterification is performed at a pressure of 0.35 MPa, a reaction temperature of 240°C, and a top temperature of the fractionating column of 130°C, when the amount of water reaches 95% of the theoretical amount of water, the temperature is increased to 270°C, the vacuum degree is 50 Pa, the stirring power reaches 240 W, the stirring is stopped, the vacuum is broken, and the modified polyester is prepared. The other steps are the same as in Example 2.

[0093] Comparative Example 21

[0094] The preparation method of the antibacterial and deodorant functional fabric of Comparative Example 21 is different from that of Example 2 in that steps (4) and (5) are modified. Step (4) is modified as follows: the β-cyclodextrin, sodium hydroxide, and deionized water are uniformly mixed at a mass ratio of 1:1.05:6.3, stirring is performed at 50°C and 250 r / min for 15 min, 1.2 times the mass of the β-cyclodextrin of monochloroacetic acid is added, stirring is performed at 80°C and 250 r / min for 7 h, the temperature is cooled to room temperature, the pH is adjusted to 2 with a 20 wt% hydrochloric acid aqueous solution, the carboxylated β-cyclodextrin is prepared by uniformly dropping the carboxylated β-cyclodextrin into 40 times the mass of the β-cyclodextrin of methanol at a rate of 5 ml / min, standing for 12 min, filtering with a cellulose acetate filter membrane, and vacuum drying at 45°C for 11 h; step (5) is modified as follows: the carboxylated β-cyclodextrin, deionized water, and sodium hypophosphite are uniformly mixed at a mass ratio of 1:18:0.003 to prepare a carboxylated β-cyclodextrin aqueous solution; the polyester fabric is immersed in a 2 wt% sodium hydroxide aqueous solution, standing for 50 min at 90°C, washed with deionized water 3 times, and vacuum dried at 45°C for 3 h to prepare an alkali-treated polyester fabric; the alkali-treated polyester fabric is immersed in the carboxylated β-cyclodextrin aqueous solution, standing for 1.5 h, placed in an oven for drying at 95°C for 5 h, and high-temperature baked at 165°C for 5 min to prepare the antibacterial and deodorant functional fabric. The other steps are the same as in Example 2.

[0095] Comparative Example 22

[0096] The preparation method of the antibacterial and deodorant functional fabric of Comparative Example 22 is different from that of Example 2 in steps (4) and (5). Step (4) is modified as follows: β-cyclodextrin, deionized water and anhydrous ethanol are mixed uniformly at a mass ratio of 1:15:7.5 at 60°C to prepare a β-cyclodextrin solution; tea polyphenol and anhydrous ethanol are mixed uniformly at a mass ratio of 1:20 to prepare a tea polyphenol solution; the tea polyphenol solution is added uniformly to the β-cyclodextrin solution at a mass ratio of 1:3 of the tea polyphenol solution to the β-cyclodextrin solution at a dropping rate of 5 ml / min at 50°C, and stirring is performed at 200 rpm in the dark for 15 h, standing at 4°C for 22 h, filtering and washing with anhydrous ethanol for 3 times, and vacuum drying at 25°C for 11 h to prepare a β-cyclodextrin inclusion compound; and step (5) is modified as follows: the β-cyclodextrin inclusion compound, deionized water and sodium hypophosphite are mixed uniformly at a mass ratio of 1:18:0.003 to prepare a β-cyclodextrin inclusion compound aqueous solution; the polyester fabric is immersed in a 2 wt% sodium hydroxide aqueous solution, standing at 90°C for 50 min, washing with deionized water for 3 times, and vacuum drying at 45°C for 3 h to prepare an alkali-treated polyester fabric; the alkali-treated polyester fabric is immersed in the β-cyclodextrin inclusion compound aqueous solution, standing for 1.5 h, and placed in an oven for drying at 95°C for 5 h and high-temperature baking at 165°C for 5 min to prepare the antibacterial and deodorant functional fabric. The remaining steps are the same as those of Example 2.

[0097] Comparative Example 23

[0098] The preparation method of the antibacterial and deodorant functional fabric of Comparative Example 23 is different from that of Example 2 in that steps (4) and (5) are not performed, and step (3) is modified as follows: the modified polyester, modified titanium dioxide and azobisisobutyronitrile are mixed uniformly at a mass ratio of 1:0.055:0.0015, and are melt-spun in a twin-screw spinning machine, with a spinneret specification of 0.35 mm x 34 f, a spinneret hole length-diameter ratio of 1:2, a spinning speed of 800 m / min, a first zone temperature of 285°C, a second zone temperature of 295°C, a third zone temperature of 300°C, a fourth zone temperature of 295°C, a metering pump temperature of 295°C, an assembly temperature of 295°C, a pipe bend temperature of 295°C, and a spinneret temperature of 292°C, to prepare nascent polyester fibers; the nascent polyester fibers are stretched on a parallel drafting machine, with a hot box temperature of 75°C, a hot plate temperature of 150°C, a stretching take-up speed of 200 m / min, and a stretching multiple of 3.6, to prepare polyester fibers; and the polyester fibers are woven into an antibacterial and deodorant functional fabric by a spinning machine. The remaining steps are the same as those of Example 2.

[0099] Comparative Example 24

[0100] The preparation method of the antibacterial and deodorant functional fabric of Comparative Example 24 is different from that of Example 2 in that step (5) is modified as follows: the carboxylated β-cyclodextrin inclusion compound, deionized water, and sodium hypophosphite are mixed uniformly at a mass ratio of 1:18:0.003 to prepare a carboxylated β-cyclodextrin inclusion compound aqueous solution; the polyester fabric is immersed in the carboxylated β-cyclodextrin inclusion compound aqueous solution, left to stand for 1.5 h, placed in an oven at 95°C for drying for 5 h, and baked at a high temperature of 165°C for 5 min to prepare the antibacterial and deodorant functional fabric. The remaining steps are the same as in Example 2.

[0101] Test Example 1

[0102] Determination of optimal conditions for carboxylated β-cyclodextrin:

[0103] Test method: The acid-base titration method is used to determine the carboxyl content of carboxylated β-cyclodextrin, phenothalin is used as an indicator, a 0.1 mol / L KOH standard solution is prepared, it is used to titrate carboxylated β-cyclodextrin, and the degree of substitution is calculated as 1135M / (m-58M), wherein 1135 is the relative molecular mass of carboxylated β-cyclodextrin, 58 is the relative molecular weight of a carboxymethyl group, M is the number of moles of KOH consumed when titration is stopped at the end point, and m is the mass (g) of carboxylated β-cyclodextrin used during titration.

[0104] The results are shown in Table 1.

[0105] Table 1

[0106]

[0107] By comparison, the degree of substitution of Example 2 is greater than that of Comparative Examples 1-4, indicating that as the amount of monochloroacetic acid increases, the contact with β-cyclodextrin is more sufficient, and the degree of substitution of the product increases, but when monochloroacetic acid is excessive, it reacts with sodium hydroxide in the system, reducing the degree of substitution of the product. Therefore, when the amount of monochloroacetic acid added is 1.2 times the amount of β-cyclodextrin added, the degree of substitution is the highest.

[0108] By comparison, the degree of substitution of Example 2 is greater than that of Comparative Examples 5-8, indicating that as the concentration of sodium hydroxide increases, the hydroxyl groups on β-cyclodextrin are more likely to undergo ionization reactions, which is more conducive to the reaction, and the degree of substitution also increases, but when sodium hydroxide is excessive, monochloroacetic acid does not react with β-cyclodextrin, but reacts with sodium hydroxide, the etherification reaction rate decreases, and the degree of substitution of the carboxyl group also decreases. Therefore, when the amount of sodium hydroxide added is 1.05 times the amount of β-cyclodextrin added, the degree of substitution is the highest.

[0109] By comparison, the degree of substitution of Example 2 is greater than that of Comparative Examples 9-12, which indicates that the longer the reaction time, the longer the interaction time of β-cyclodextrin and monochloroacetic acid, the more complete the reaction, and the higher the degree of substitution. However, when the reaction time is greater than 7 h, the reaction system tends to be stable, and the degree of substitution no longer increases. Therefore, the optimal reaction time is 7 h.

[0110] By comparison, the degree of substitution of Example 2 is greater than that of Comparative Examples 13-16, which indicates that when the temperature is low, the etherification reaction stage cannot proceed normally, which reduces the content of carboxymethyl in the product and lowers the degree of substitution. When the temperature is too high, the β-cyclodextrin may be gelatinized during the reaction, which reduces the amount of cyclodextrin participating in the reaction, thereby lowering the degree of substitution. Therefore, the optimal reaction temperature is 80℃.

[0111] Test Example 2

[0112] Antibacterial performance test:

[0113] The antibacterial and deodorant functional fabric obtained from Examples 1-3 and Comparative Examples 17-24 was tested for the inhibition rate of Escherichia coli and Staphylococcus aureus according to GB / T 20944.3-2008 “Evaluation of antibacterial properties of textiles Part 3: shaking method”.

[0114] The results are shown in Table 2.

[0115] Table 2

[0116]

[0117]

[0118] As can be seen from the experimental data of Examples 1-3 and Comparative Examples 17-24 in Table 2, the antibacterial and deodorant functional fabric prepared by the present application has good antibacterial performance.

[0119] By comparison, the inhibition rate of Examples 1-3 is greater than that of Comparative Example 20, which indicates that the hydroxypropyl-terminated polydimethylsiloxane, ethylene glycol, 3,5-pyridine dicarboxylic acid, and terephthalic acid are subjected to polycondensation, and the polyester prepared contains a large number of pyridine groups, which undergoes quaternary ammonium reaction with 4-chloromethylstyrene to generate pyridine quaternary ammonium salt with good antibacterial properties, thereby improving the antibacterial performance of the antibacterial and deodorant functional fabric.

[0120] By comparison, the inhibition rate of Examples 1-3 is greater than that of Comparative Examples 21-23, which indicates that tea polyphenol, as a natural antibacterial and deodorant substance, can combine with the hydrophilic end of the lipid bilayer to agglomerate membrane lipids, leading to cell membrane rupture, preventing normal metabolic activity of bacteria, causing leakage of intracellular substances, and thus causing cell death, thereby further improving the antibacterial performance of the antibacterial and deodorant fabric.

[0121] Test Example 3

[0122] Deodorization performance test:

[0123] The anti-bacterial and deodorization functional fabric obtained from Examples 1-3 and Comparative Examples 17-24 was tested for the reduction rate of odor component concentration according to GB / T 33610.2-2017 "Determination of deodorization performance of textiles Part 2: detection tube method", with ammonia as the odor component.

[0124] The results are shown in Table 3.

[0125] Table 3

[0126]

[0127]

[0128] From the comparison of the experimental data of Examples 1-3 and Comparative Examples 17-24 in Table 3, it can be found that the anti-bacterial and deodorization functional fabric prepared by the present application has good deodorization performance.

[0129] By comparison, the ammonia concentration reduction rate of Examples 1-3 is greater than that of Comparative Example 18, which shows that titanium dioxide can generate a large number of free radicals under light conditions, which react with odor substances, thereby improving the deodorization performance of the anti-bacterial and deodorization functional fabric.

[0130] By comparison, the ammonia concentration reduction rate of Examples 1-3 is greater than that of Comparative Examples 21-22, which shows that cyclodextrin can adsorb odor molecules due to its unique cavity structure, achieving the effect of deodorization and improving the deodorization performance of the anti-bacterial and deodorization functional fabric. At the same time, cyclodextrin has a hydrophobic interior and a hydrophilic exterior, which can include tea polyphenols with hydrophobic groups. Tea polyphenols contain active hydroxyl groups, which can undergo redox and neutralization reactions with odor molecules such as ammonia, thereby completely eliminating odor and further improving the deodorization performance of the anti-bacterial and deodorization functional fabric.

[0131] Test Example 4

[0132] Flame retardant performance test:

[0133] The anti-bacterial and deodorization functional fabric obtained from Examples 1-3 and Comparative Examples 17-24 was tested for the limiting oxygen index according to GB / T 5454-1997.

[0134] The results are shown in Table 4.

[0135] Table 4

[0136] limiting oxygen index limiting oxygen index example 1 31.2％ comparative example 17 23.5％ example 2 31.7％ comparative example 18 22.9％ example 3 31.4％ comparative example 19 26.5％ comparative example 20 30.8％ comparative example 21 31.3％ comparative example 22 31.5％ comparative example 23 31.0％ comparative example 24 31.2％

[0137] From the experimental data comparison of examples 1-3 and comparative examples 17-24 in table 4, it can be found that the antibacterial and deodorant functional fabric prepared by the present application has good flame retardant property.

[0138] By comparison, the limiting oxygen index of examples 1-3 is greater than that of comparative examples 17-18, which shows that the modification of titanium dioxide with 1-(triethoxysilyl) methylamine as coupling agent improves the compatibility of titanium dioxide with polyester, introduces amino group on the surface of titanium dioxide, reacts with diallyl chlorophosphate to introduce phosphorus element, which can capture free radicals and block the combustion reaction, thereby improving the flame retardant property of the antibacterial and deodorant functional fabric.

[0139] By comparison, the limiting oxygen index of examples 1-3 is greater than that of comparative example 19, which shows that the polycondensation of hydroxypropyl-terminated polydimethylsiloxane, ethylene glycol, 3,5-pyridine dicarboxylic acid and terephthalic acid contains a large amount of siloxane structure on the prepared polyester, which forms silicon dioxide after combustion and adheres to the surface of the fabric, which can block the contact between the fabric and the flame, thereby further improving the flame retardant property of the antibacterial and deodorant functional fabric.

[0140] Test example 5

[0141] Mechanical property test:

[0142] The antibacterial and deodorant functional fabric obtained from examples 1-3 and comparative examples 17-24 was tested by referring to GB / T3923.1-2013 "textile fabric tensile properties part 1: determination of breaking strength and elongation at break (strip method)", the modified fabric was cut into a sample of 20cm x 5cm, the clamping distance was set to 100mm, the tensile speed was 100mm / min, each test was repeated 5 times, and the average value was taken to test the breaking strength.

[0143] The results are shown in table 5.

[0144] Table 5

[0145]

[0146]

[0147] From the experimental data comparison of examples 1-3 and comparative examples 17-24 in table 5, it can be found that the antibacterial and deodorant functional fabric prepared by the present application has good mechanical property.

[0148] By comparison, the breaking strength of examples 1-3 is greater than that of comparative examples 17 and 20, which indicates that the pre-modified titanium dioxide reacts with diallyl chlorophosphate to introduce double bonds on the titanium dioxide; the polyester reacts with 4-chloromethylstyrene to introduce double bonds on the polyester; under the action of azobisisobutyronitrile, the double bonds on the titanium dioxide react with the double bonds on the polyester to form a crosslinked network structure, thereby improving the mechanical properties of the antibacterial and deodorant functional fabric.

[0149] By comparison, the breaking strength of examples 1-3 is greater than that of comparative examples 23-24, which indicates that the alkali-treated polyester fabric contains a large number of hydroxyl groups, which esterify with the carboxyl groups on the surface of the carboxylated β-cyclodextrin inclusion compound, thereby improving the mechanical properties of the antibacterial and deodorant functional fabric.

[0150] The above specific embodiments further illustrate the purpose, technical solutions and beneficial effects of the present application. It should be understood that the above description is only a specific embodiment of the present application and is not intended to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An antibacterial and deodorant functional fabric, characterized by comprising: The antibacterial and deodorant functional fabric is prepared by immersing the alkali treated polyester fabric into a water solution of carboxylated beta-cyclodextrin inclusion compound; The alkali treated polyester fabric is prepared by mixing the polyester fabric with sodium hydroxide water solution; The polyester fabric is prepared by melt spinning of modified polyester and modified titanium dioxide, and then textile; The modified polyester is prepared by condensation polymerization of hydroxypropyl terminated polydimethylsiloxane, ethylene glycol, 3,5-pyridinedicarboxylic acid and terephthalic acid, and then reacted with 4-chloromethylstyrene; The carboxylated beta-cyclodextrin inclusion compound is prepared by reacting beta-cyclodextrin with monochloroacetic acid to obtain carboxylic acid beta-cyclodextrin, and then co-precipitating with tea polyphenol; The modified titanium dioxide is prepared by reacting titanium dioxide with 1-(triethoxysilyl)methylamine to obtain pre-modified titanium dioxide, and then reacting with diallyl chlorophosphate.

2. A method for preparing an antibacterial and deodorant functional fabric, characterized by, The preparation comprises the following steps: (1) under nitrogen atmosphere, pre-modified titanium dioxide, diallyl chlorophosphate, triethylamine and N,N-dimethylformamide are mixed uniformly at a mass ratio of 1:(1-2):(0.6-1):(12-15), and then stirred and reacted at 50-60℃ for 10-12h, followed by distillation under reduced pressure, washing and drying to obtain modified titanium dioxide; (2) polyester, 4-chloromethylstyrene and N,N-dimethylformamide are mixed uniformly at a mass ratio of 1:(2-3):(15-20), and then stirred and reacted at 85-95℃ for 10-12h, followed by cooling to room temperature, mixing with 20-30 times of ethyl acetate based on the mass of polyester, filtering, washing and drying to obtain modified polyester; (3) modified polyester, modified titanium dioxide and azobisisobutyronitrile are mixed uniformly at a mass ratio of 1:(0.05-0.06):(0.001-0.002), and then melt spun in a twin-screw spinning machine to obtain nascent polyester fiber, which is stretched on a parallel drafting machine to obtain polyester fiber, and then the polyester fiber is woven into polyester fabric by a textile machine; (4) carboxylated beta-cyclodextrin, deionized water and anhydrous ethanol are mixed uniformly at a mass ratio of 1:(14-16):(7-8) at 55-65℃ to obtain a carboxylated beta-cyclodextrin solution; tea polyphenol and anhydrous ethanol are mixed uniformly at a mass ratio of 1:(18-22) to obtain a tea polyphenol solution; the tea polyphenol solution is added uniformly into the carboxylated beta-cyclodextrin solution at a dropping rate of 5ml / min and a mass ratio of 1:(2.5-3.5), and then stirred for 14-16h in dark condition, and then placed at 2-6℃ for 20-24h, followed by filtering, washing and drying to obtain carboxylated beta-cyclodextrin inclusion compound. (5) mixing carboxylated β-cyclodextrin inclusion compound, deionized water and sodium hypophosphite in a mass ratio of 1:(15-20):(0.002-0.004) to obtain a carboxylated β-cyclodextrin inclusion compound aqueous solution; immersing the polyester fabric into a 2wt% sodium hydroxide aqueous solution, and standing at 85-95℃ for 40-60min, and then washing and drying to obtain an alkali-treated polyester fabric; immersing the alkali-treated polyester fabric into the carboxylated β-cyclodextrin inclusion compound aqueous solution, and standing for 1-2h, and then drying in an oven at 90-100℃, and then baking at a high temperature of 160-170℃ for 4-6min to obtain an antibacterial and deodorant functional fabric.

3. The method of claim 2, wherein the functional fabric is prepared by coating the fabric with the antimicrobial agent and the odor control agent. The preparation step of the pre-modified titanium dioxide in step (1) is as follows: mixing titanium dioxide and toluene in a mass ratio of 1:(3-3.2), and ultrasonic dispersing for 20-40min, and then adding 1-(triethoxysilyl)methylamine hydrolysate in an amount of 1.6-1.8 times the mass of the titanium dioxide, and stirring and reacting at 65-75℃ for 4-5h, and then rotary evaporating and drying to obtain the pre-modified titanium dioxide.

4. The method of claim 2, wherein the functional fabric is prepared by coating the fabric with the antimicrobial agent and the odor control agent. The preparation step of the polyester in step (2) is as follows: mixing hydroxypropyl-terminated polydimethylsiloxane, ethylene glycol, 3,5-pyridinedicarboxylic acid, terephthalic acid, ethylene glycol antimony, and trimethyl phosphate in a mass ratio of 1:(0.2-0.3):(0.5-0.7):(0.4-0.6):(0.0001-0.0002):(0.0001-0.0002) to obtain a mixture, and then performing esterification reaction at a pressure of 0.3-0.4MPa, a reaction temperature of 230-250℃, and a top temperature of a fractionating column of 125-135℃, and then when the water output reaches 95% of the theoretical water output, increasing the temperature to 265-275℃, and then performing vacuum discharge under stirring at a stirring power of 240W to obtain the polyester.

5. The method of claim 2, wherein the functional fabric is prepared by coating the fabric with the antimicrobial agent and the odor control agent. The parameters of the melt spinning in step (3) are as follows: the spinneret specification is 0.35mm×34f, the spinneret hole length-diameter ratio is 1:2, the spinning speed is 800m / min, the temperature in the first zone is 280-290℃, the temperature in the second zone is 290-300℃, the temperature in the third zone is 295-305℃, the temperature in the fourth zone is 290-300℃, the temperature of the metering pump is 290-300℃, the temperature of the assembly is 290-300℃, the temperature of the elbow pipe is 290-300℃, and the temperature of the spinneret is 290-295℃.

6. The method of claim 2, wherein the functional fabric is prepared by coating the fabric with the antimicrobial agent and the odor control agent. The parameters of the stretching in step (3) are as follows: the temperature of the hot box is 75℃, the temperature of the hot plate is 150℃, the stretching and winding speed is 200m / min, and the stretching multiple is 3.4-3.

8.

7. The method of claim 2, wherein the functional fabric is prepared by coating the fabric with the antimicrobial agent and the odor control agent. The preparation step of the carboxylated β-cyclodextrin in step (4) is: uniformly mixing β-cyclodextrin, sodium hydroxide and deionized water in a mass ratio of 1:(1-1.1):(6-6.5), stirring at 45-55°C for 10-20 min, adding monochloroacetic acid in an amount of 1.15-1.25 times the mass of β-cyclodextrin, stirring at 75-85°C for 6-8 h, cooling to room temperature, adjusting the pH to 2 with 20 wt% hydrochloric acid solution, uniformly dropping at a rate of 5 ml / min into methanol in an amount of 30-50 times the mass of β-cyclodextrin, standing for 10-15 min, filtering and drying to obtain the carboxylated β-cyclodextrin.

8. The method of claim 3, wherein the functional fabric is prepared by coating the fabric with the antimicrobial agent and the odor control agent. The preparation step of the 1-(triethoxysilyl)methylamine hydrolysate is: uniformly mixing 1-(triethoxysilyl)methylamine, deionized water and ethanol in a mass ratio of 1:2:8, adjusting the pH to 5-6 by adding glacial acetic acid, and stirring the mixture at room temperature for 3-4 h to obtain the 1-(triethoxysilyl)methylamine hydrolysate.

9. The method of claim 3, wherein the functional fabric is prepared by coating the fabric with the antimicrobial agent and the odor control agent. The titanium dioxide is anatase titanium dioxide with a particle size of 20 nm.

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