Antibacterial and deodorant fabric and preparation method thereof

Abstract

The invention discloses an antibacterial and deodorant fabric and a preparation method thereof, and relates to the technical field of fabrics. The preparation method comprises the following steps: firstly, taking zinc acetate alkoxide and 1, 2-bis (triethoxy silicon) ethylene as precursors, preparing a zinc oxide hybrid material by a sol-gel method, and bridging two silicon oxygen groups of the 1, 2-bis (triethoxy silicon) ethylene with zinc ions in the zinc acetate alkoxide through coordinate bonds to form a polymerization network with higher crosslinking degree; a tighter coating is formed after curing, so that the loss and decomposition of zinc oxide are effectively prevented; secondly, a zinc oxide hybrid material is sprayed to the surface of the sulfhydrylation fabric through ultraviolet light-assisted ultrasonic atomization spraying to prepare the antibacterial and deodorant fabric, ultraviolet light can excite a click reaction between sulfydryl on the surface of the fabric and vinyl in the zinc oxide hybrid material, the drying and curing process of a coating is accelerated, the adhesive force and wear resistance of the coating are improved, and the antibacterial and deodorant performance of the fabric is improved. And the zinc oxide and the fabric are combined more tightly and are not easy to fall off. The antibacterial and odor-resistant fabric prepared by the invention has antibacterial, odor-resistant and wear-resistant effects.

Description

Technical Field

[0001] The invention relates to the technical field of fabrics, in particular to an antibacterial and anti-odor fabric and a preparation method thereof. Background Art

[0002] With the development of science and technology, people are more concerned about the environmental protection and wearing performance of product materials while meeting the practicality. The research on functional fiber materials is accelerating, and fiber materials are developing towards multifunctionality, intelligence and high added value.

[0003] Faced with an increasingly complex living environment, "antibacterial and antiviral" has become particularly important. Various pathogenic microorganisms in daily life can cause great harm to people's health. Clothes, as the first of our daily necessities, are not only necessities of life, but also come into direct contact with viruses. At the same time, sweat itself does not smell bad, but it provides a humid and warm environment for microorganisms. In addition, pure cotton is more absorbent, and bacteria and microorganisms will also multiply rapidly, producing a large amount of metabolites (ammonia, acetic acid, propionic acid, etc.), which is the reason for the sweat odor. Therefore, the research and development of antibacterial and anti-odor fabrics is of great significance to protecting human health. Summary of the invention

[0004] The object of the present invention is to provide an antibacterial and anti-odor fabric and a preparation method thereof, so as to solve the problems existing in the prior art.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: an antibacterial and anti-odor fabric, wherein the antibacterial and anti-odor fabric is prepared by spraying zinc oxide hybrid material onto the fabric surface through ultraviolet light-assisted ultrasonic atomization.

[0006] Furthermore, the zinc oxide hybrid material is prepared from zinc acetate alkoxide and 1,2-bis(triethoxysilyl)ethylene by a sol-gel method.

[0007] Furthermore, the fabric is prepared by modification of mercaptoethanol.

[0008] Furthermore, a method for preparing an antibacterial and anti-odor fabric comprises the following preparation steps:

[0009] (1) Dissolve zinc acetate dihydrate in deionized water to prepare a zinc acetate solution with a concentration of 0.7-0.8 mol / L, heat to 65-70° C., add oxalic acid alcohol solution in an amount of 3-5 times the molar amount of zinc acetate, stir at 100-150 r / min for 20-30 min, add 1-2 times the molar amount of zinc acetate 1,2-bis(triethoxysilyl)ethylene, stir at 200-250 r / min for 20-30 min, heat to 80-90° C., slowly add 20 wt% ammonia water until the pH is 6-7, and react for 3-5 h to obtain a zinc oxide hybrid material;

[0010] (2) mercapto adipic acid, hexamethylenediamine and ethanol are mixed in a mass ratio of 1 to 1.5:2 to 3:3, heated to 70 to 75°C, stirred and mixed at 150 to 200 r / min for 3 hours, deionized water is added to prepare an aqueous solution in which the mercapto adipic acid accounts for 63 wt%, 0.7 to 0.8 times the mass of the aqueous solution is added with ethylenediamine acetic acid solution, wherein the molar ratio of hexamethylenediamine to acetic acid in the ethylenediamine acetic acid solution is 4:5, evaporated for 3 to 5 hours at 232°C, 1.72 MPa and nitrogen protection, then heated to 285 to 288°C, reacted for 40 to 45 minutes, reduced pressure to 40 to 45 kPa, cooled to 270 to 272°C, reacted for 50 to 55 minutes, extruded and spun at 270 to 272°C to obtain mercapto polyamide fibers, and woven to obtain mercapto fabrics;

[0011] (3) The zinc oxide hybrid material is placed in an ultrasonic atomizer, and is ultrasonically atomized and sprayed onto the thiol-modified fabric under ultraviolet light to obtain an antibacterial and anti-odor fabric.

[0012] Furthermore, the oxalic acid alcohol solution in step (1) is prepared by dissolving oxalic acid in an anhydrous ethanol solution with a mass of 19 to 21 times that of oxalic acid, and stirring at 200 to 250 r / min for 5 minutes.

[0013] Furthermore, the preparation method of mercapto oxalic acid in step (2) is:

[0014] The mixture is prepared by mixing mercaptoethanol and cyclohexanecarboxylic acid in a mass ratio of 2 to 3:1, and then dissolved in ether 3 to 5 times the mass of the mixture, and then p-toluenesulfonic acid 0.1 to 0.3 times the mass of mercaptoethanol is added, and stirred at 300 to 500 r / min for 20 to 30 min, and reacted at 65 to 70 ° C and 0.060 to 0.065 MPa for 3 to 5 h, and then at 100 to 105 ° C and 0.080 to 0.085 MPa for 3 h to obtain mercapto cyclohexanecarboxylic acid. Hexane, continue to add 80wt% acetic acid aqueous solution with a molar amount of 3 to 5 times the mass of mercaptocyclohexane and cobalt acetate with a molar amount of 0.04 to 0.15 times the mass of mercaptocyclohexane, then add 50wt% acetaldehyde aqueous solution with a molar amount of 0.5 to 1 times the mass of mercaptocyclohexane, stir at 300 to 500r / min for 30 to 60min, react at 90°C and 1.8MPa for 9h, filter the filtrate while it is hot, bathe in cold water at 0°C to obtain crystals, and recrystallize the crystals with water again to obtain mercapto adipic acid.

[0015] Furthermore, in the step (3), the spinning temperature of the polyamide fiber is 270-275° C., the pressure is 10-12 MPa, and the spinning speed is 2900-3200 m / min.

[0016] Furthermore, the wavelength of the ultraviolet light irradiation in step (4) is 350-360 nm.

[0017] Furthermore, the conditions for ultrasonic atomization spraying in step (4) are that the spraying distance is 1 to 2 cm, the time is 10 to 15 minutes, and the fabric is moved during the spraying process.

[0018] Furthermore, the ultrasonic atomization spraying condition in step (4) is that the spray gun sprays on the surface of the fabric at a spray speed of 6.1 to 6.5 L / min.

[0019] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0020] The antibacterial and anti-odor fabric prepared by the invention not only realizes the antibacterial properties of the fabric, but also effectively improves the anti-odor and wear-resistant properties of the fabric.

[0021] Firstly, zinc oxide hybrid material was prepared by sol-gel method using zinc acetate alkoxide and 1,2-bis(triethoxysilyl)ethylene as precursors. Since 1,2-bis(triethoxysilyl)ethylene has two siloxy groups, they will be bridged with zinc ions in zinc acetate alkoxide through coordination bonds to form a more complex polymerization network, making the dispersion of zinc oxide more uniform, further improving the stability of zinc oxide hybrid material, and optimizing the optical properties of zinc oxide, promoting its ability to excite active oxygen, and improving its antibacterial and anti-odor effects.

[0022] Secondly, thiol groups were introduced into the fabric using mercapto ethanol, and the zinc oxide hybrid material was sprayed onto the fabric surface using ultraviolet light-assisted ultrasonic atomization spraying to prepare antibacterial and anti-odor fabrics; ultraviolet light can not only stimulate the click reaction of mercapto groups and vinyl groups, making zinc oxide and fabrics more closely combined and not easy to fall off, thereby improving the wear resistance of the fabric; but ultraviolet light irradiation will further stimulate the photocatalytic properties of zinc oxide, improve the antibacterial and anti-odor effects of the fabric, and help the zinc oxide sol to better combine with the fabric surface, accelerate the drying and curing process of the coating, and improve the adhesion and wear resistance of the coating. DETAILED DESCRIPTION

[0023] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0024] In order to more clearly illustrate the method provided by the present invention, the following examples are used to describe in detail the test methods of various indicators of the antibacterial and anti-odor fabrics prepared in the following examples are as follows:

[0025] Antibacterial performance: The antibacterial and anti-odor fabrics of the embodiment and the comparative example of the same mass were used to measure the antibacterial rates of the fabrics against Escherichia coli and Streptococcus aureus according to GB / T20944.3-2008 “Evaluation of antibacterial properties of textiles”.

[0026] Anti-odor performance: The antibacterial and anti-odor fabrics prepared in the embodiment and the comparative example of the same mass were tested for the concentration reduction rate of odorous gas using ammonia as an example in accordance with GB / T33610.2-2017 "Determination of Deodorizing Performance of Textiles".

[0027] Wear resistance: The antibacterial and anti-odor fabrics prepared in the embodiment and the comparative example of the same mass were rubbed with a force of 20N, and the degree of wear was tested after 30 minutes.

[0028] Example 1

[0029] A method for preparing an antibacterial and anti-odor fabric comprises the following preparation steps:

[0030] (1) dissolving oxalic acid in an anhydrous ethanol solution with a mass of 19 times that of oxalic acid, stirring at 200 r / min for 5 min to obtain an oxalic acid alcohol solution;

[0031] (2) Dissolve zinc acetate dihydrate in deionized water to prepare a zinc acetate solution with a concentration of 0.7 mol / L, heat to 65°C, add oxalic acid alcohol solution 3 times the molar amount of zinc acetate, stir at 100 r / min for 20 min, add 1,2-bis(triethoxysilyl)ethylene 1 times the molar amount of zinc acetate, stir at 200 r / min for 20 min, heat to 80°C, slowly add 20 wt% ammonia water until the pH is 6, and react for 3 h to obtain a zinc oxide hybrid material;

[0032] (3) mercaptoethanol and cyclohexanecarboxylic acid are mixed in a mass ratio of 2:1 to obtain a mixture, which is dissolved in ether 3 times the mass of the mixture, and then p-toluenesulfonic acid 0.1 times the mass of mercaptoethanol is added, stirred at 300 r / min for 20 min, reacted at 65° C. and 0.060 MPa for 3 h, and then reacted at 100° C. and 0.080 MPa for 3 h to obtain mercaptocyclohexane, and then 80 wt % acetic acid aqueous solution 3 times the mass of mercaptocyclohexane and cobalt acetate 0.04 times the molar amount of mercaptocyclohexane are added, and then 50 wt % acetaldehyde aqueous solution 0.5 times the mass of mercaptocyclohexane is added, stirred at 300 r / min for 30 min, reacted at 90° C. and 1.8 MPa for 9 h, the filtrate is filtered while hot, and cold water is bathed at 0° C. to obtain crystals, and the crystals are recrystallized from water again to obtain mercapto adipic acid;

[0033] (4) mercapto adipic acid, hexamethylenediamine and ethanol are mixed in a mass ratio of 1:2:3, heated to 70°C, stirred and mixed at 150 r / min for 3 h, deionized water is added to prepare an aqueous solution of 63 wt% mercapto adipic acid, 0.7 times the mass of the aqueous solution is added with ethylenediamine acetic acid solution, wherein the molar ratio of hexamethylenediamine to acetic acid in the ethylenediamine acetic acid solution is 4:5, evaporated for 3 h at 232°C, 1.72 MPa and nitrogen protection, then heated to 285°C, reacted for 40 min, reduced pressure to 40 kPa, cooled to 270°C, reacted for 50 min, extruded and spun at 270°C to obtain mercapto polyamide fiber, the spinning temperature is 270°C, the pressure is 10 MPa, the spinning speed is 2900 m / min, and the mercapto fabric is woven;

[0034] (5) The zinc oxide hybrid material is placed in an ultrasonic atomizer and ultrasonically atomized and sprayed onto the thiol-modified fabric under ultraviolet light with a wavelength of 350 nm to obtain an antibacterial and anti-odor fabric. The conditions for the ultrasonic atomization spraying are a spraying distance of 1 cm, a time of 10 min, a spraying speed of 6.1 L / min, and the fabric is moved during the spraying process.

[0035] Example 2

[0036] A method for preparing an antibacterial and anti-odor fabric comprises the following preparation steps:

[0037] (1) dissolving oxalic acid in an anhydrous ethanol solution with a mass 20 times that of the oxalic acid, stirring at 220 r / min for 5 min to obtain an oxalic acid alcohol solution;

[0038] (2) Dissolve zinc acetate dihydrate in deionized water to prepare a zinc acetate solution with a concentration of 0.8 mol / L, heat to 68°C, add oxalic acid alcohol solution 3 times the molar amount of zinc acetate, stir at 130 r / min for 25 min, add 1,2-bis(triethoxysilyl)ethylene 1.5 times the molar amount of zinc acetate, stir at 220 r / min for 25 min, heat to 85°C, slowly add 20 wt% ammonia water until the pH is 6, and react for 4 h to obtain a zinc oxide hybrid material;

[0039] (3) mercaptoethanol and cyclohexanecarboxylic acid are mixed in a mass ratio of 2.5:1 to obtain a mixture, which is dissolved in ether 4 times the mass of the mixture, and then p-toluenesulfonic acid 0.2 times the mass of mercaptoethanol is added, stirred at 400 r / min for 25 min, reacted at 68° C. and 0.063 MPa for 4 h, and then reacted at 103° C. and 0.083 MPa for 3 h to obtain mercaptocyclohexane, and then 80 wt % acetic acid aqueous solution 4 times the mass of mercaptocyclohexane and cobalt acetate 0.09 times the molar amount of mercaptocyclohexane are added, and then 50 wt % acetaldehyde aqueous solution 0.8 times the mass of mercaptocyclohexane is added, stirred at 400 r / min for 45 min, reacted at 90° C. and 1.8 MPa for 9 h, the filtrate is filtered while hot, and cold water is bathed at 0° C. to obtain crystals, and the crystals are recrystallized from water again to obtain mercapto adipic acid;

[0040] (4) mercapto adipic acid, hexamethylenediamine and ethanol are mixed in a mass ratio of 1.3:2.5:3, heated to 73°C, stirred and mixed at 180 r / min for 3 h, deionized water is added to prepare an aqueous solution of 63 wt% mercapto adipic acid, 0.75 times the mass of the aqueous solution is added with ethylenediamine acetic acid solution, wherein the molar ratio of hexamethylenediamine to acetic acid in the ethylenediamine acetic acid solution is 4:5, evaporated for 4 h at 232°C, 1.72 MPa and nitrogen protection, then heated to 287°C, reacted for 43 min, reduced pressure to 43 kPa, cooled to 271°C, reacted for 53 min, extruded and spun at 270°C to obtain mercapto polyamide fiber, the spinning temperature is 273°C, the pressure is 11 MPa, the spinning speed is 3000 m / min, and the mercapto fabric is woven;

[0041] (5) The zinc oxide hybrid material is placed in an ultrasonic atomizer and ultrasonically atomized and sprayed onto the thiol-modified fabric under ultraviolet light with a wavelength of 355 nm to obtain an antibacterial and anti-odor fabric. The conditions for the ultrasonic atomization spraying are a spraying distance of 2 cm, a time of 13 min, a spraying speed of 6.3 L / min, and the fabric is moved during the spraying process.

[0042] Example 3

[0043] A method for preparing an antibacterial and anti-odor fabric comprises the following preparation steps:

[0044] (1) dissolving oxalic acid in an anhydrous ethanol solution with a mass 21 times that of the oxalic acid, stirring at 250 r / min for 5 min to obtain an oxalic acid alcohol solution;

[0045] (2) Dissolve zinc acetate dihydrate in deionized water to prepare a zinc acetate solution with a concentration of 0.8 mol / L, heat to 70°C, add oxalic acid alcohol solution 5 times the molar amount of zinc acetate, stir at 150 r / min for 30 min, add 1,2-bis(triethoxysilyl)ethylene 2 times the molar amount of zinc acetate, stir at 250 r / min for 30 min, heat to 90°C, slowly add 20 wt% ammonia water until the pH is 7, and react for 5 h to obtain a zinc oxide hybrid material;

[0046] (3) mercaptoethanol and cyclohexanecarboxylic acid are mixed in a mass ratio of 3:1 to obtain a mixture, which is dissolved in ether 5 times the mass of the mixture, and then p-toluenesulfonic acid 0.3 times the mass of mercaptoethanol is added, stirred at 500 r / min for 30 min, reacted at 70° C. and 0.065 MPa for 5 h, and then reacted at 105° C. and 0.085 MPa for 3 h to obtain mercaptocyclohexane, and then 80 wt % acetic acid aqueous solution 5 times the mass of mercaptocyclohexane and cobalt acetate 0.15 times the molar amount of mercaptocyclohexane are added, and then 50 wt % acetaldehyde aqueous solution 1 times the mass of mercaptocyclohexane is added, stirred at 500 r / min for 60 min, reacted at 90° C. and 1.8 MPa for 9 h, the filtrate is filtered while hot, and cold water is bathed at 0° C. to obtain crystals, and the crystals are recrystallized from water again to obtain mercapto adipic acid;

[0047] (4) mercapto adipic acid, hexamethylenediamine and ethanol are mixed in a mass ratio of 1.5:3:3, heated to 75°C, stirred and mixed at 200 r / min for 3 h, deionized water is added to prepare an aqueous solution of 63 wt% of mercapto adipic acid, 0.8 times the mass of the aqueous solution is added with ethylenediamine acetic acid solution, wherein the molar ratio of hexamethylenediamine to acetic acid in the ethylenediamine acetic acid solution is 4:5, evaporated for 5 h at 232°C, 1.72 MPa and nitrogen protection, then heated to 288°C, reacted for 45 min, reduced pressure to 45 kPa, cooled to 272°C, reacted for 55 min, extruded and spun at 272°C to obtain mercapto polyamide fiber, the spinning temperature is 275°C, the pressure is 12 MPa, the spinning speed is 3200 m / min, and the mercapto fabric is woven;

[0048] (5) The zinc oxide hybrid material is placed in an ultrasonic atomizer and ultrasonically atomized and sprayed onto the thiol-modified fabric under ultraviolet light with a wavelength of 360 nm to obtain an antibacterial and anti-odor fabric. The conditions for ultrasonic atomization spraying are a spraying distance of 2 cm, a time of 15 min, a spraying speed of 6.5 L / min, and the fabric is moved during the spraying process.

[0049] Comparative Example 1

[0050] The difference between Comparative Example 1 and Example 2 is that step (2) is different. Step (2) is changed to: dissolve zinc acetate dihydrate in deionized water to prepare a zinc acetate solution with a concentration of 0.8 mol / L, heat to 68° C., add oxalic acid alcohol solution with a molar amount of 3 times that of zinc acetate, stir at 130 r / min for 25 min, heat to 85° C., slowly add 20 wt % ammonia water until the pH is 6, and react for 4 h to obtain a zinc oxide hybrid material; the remaining steps are the same as those in Example 2.

[0051] Comparative Example 2

[0052] The difference between Comparative Example 2 and Example 2 is that there is no step (3), and step (4) is changed to: adipic acid, hexamethylenediamine and ethanol are mixed in a mass ratio of 1.3:2.5:3, heated to 73°C, stirred and mixed at 180r / min for 3h, deionized water is added to prepare an aqueous solution in which thiolated adipic acid accounts for 63wt%, 0.75 times the mass of the aqueous solution is added with ethylenediamine acetic acid solution, wherein the molar ratio of hexamethylenediamine to acetic acid in the ethylenediamine acetic acid solution is 4:5, evaporated for 4h at 232°C, 1.72MPa and nitrogen protection, then heated to 287°C, reacted for 43min, and reduced to 4 3kPa, cool to 271°C, react for 53min, extrude and spin at 270°C to obtain polyamide fiber, the spinning temperature is 273°C, the pressure is 11MPa, the spinning speed is 3000m / min, and the fabric is woven; the step (5) is changed to: the zinc oxide hybrid material is placed in an ultrasonic atomizer, and ultrasonically atomized and sprayed onto the fabric under ultraviolet light with a wavelength of 355nm to obtain an antibacterial and anti-odor fabric, the conditions of ultrasonic atomization spraying are a spraying distance of 2cm, a time of 13min, a spraying speed of 6.3L / min, and the fabric is moved during the spraying process; the remaining steps are the same as in Example 2.

[0053] Comparative Example 3

[0054] The difference between Comparative Example 3 and Example 2 is that step (5) is different. Step (5) is changed to: placing the zinc oxide hybrid material in an ultrasonic atomizer, ultrasonically atomizing and spraying it on the thiol-modified fabric to obtain an antibacterial and anti-odor fabric. The conditions for ultrasonic atomizing spraying are a spraying distance of 2 cm, a time of 13 min, a spraying speed of 6.3 L / min, and moving the fabric during the spraying process; the remaining steps are the same as Example 2.

[0055] Comparative Example 4

[0056] The difference between Comparative Example 4 and Example 2 is that step (5) is different. Step (5) is changed to: spraying the zinc oxide hybrid material onto the thiol-modified fabric under ultraviolet light with a wavelength of 355 nm to obtain an antibacterial and anti-odor fabric, the spraying distance is 2 cm, the time is 13 min, the spraying speed is 6.3 L / min, and the fabric is moved during the spraying process; the remaining steps are the same as Example 2.

[0057] Comparative Example 5

[0058] The difference between Comparative Example 5 and Example 2 is that there are no steps (1) and (2), and step (5) is changed to: zinc oxide is dissolved in acetic acid, placed in an ultrasonic atomizer, and ultrasonically atomized and sprayed onto the thiol-modified fabric under ultraviolet light with a wavelength of 355 nm to obtain an antibacterial and anti-odor fabric. The conditions for ultrasonic atomization spraying are a spraying distance of 2 cm, a time of 13 min, a spraying speed of 6.3 L / min, and the fabric is moved during the spraying process; the remaining steps are the same as Example 2.

[0059] Comparative Example 6

[0060] The difference between Comparative Example 5 and Example 2 is that there are no steps (1) and (2), and step (5) is changed to: zinc oxide is dissolved in acetic acid, 1.5 times the mass of zinc oxide of 1,2-bis(triethoxysilyl)ethylene is added, stirred at 220 r / min for 25 min, placed in an ultrasonic atomizer, and ultrasonically atomized and sprayed onto the thiol-modified fabric under ultraviolet light with a wavelength of 355 nm to obtain an antibacterial and anti-odor fabric. The conditions for ultrasonic atomization spraying are a spraying distance of 2 cm, a time of 13 min, a spraying speed of 6.3 L / min, and the fabric is moved during the spraying process; the remaining steps are the same as those in Example 2.

[0061] Effect example

[0062] Table 1 below shows the performance analysis results of the antibacterial and anti-odor fabrics of Examples 1 to 3 of the present invention and Comparative Examples 1 to 4.

[0063] Table 1

[0064]

[0065]

[0066] From the comparison of the experimental data of Comparative Example 1 and Example 2, it can be found that the present invention introduces 1,2-bis(triethoxysilyl)ethylene organic structure into zinc oxide. Since 1,2-bis(triethoxysilyl)ethylene has two siloxy groups, they will be bridged with the zinc ions in zinc acetate alcohol salt through coordination bonds to form a polymer network with a higher degree of crosslinking, so that the dispersion of zinc oxide is more uniform. The polymer network with a high degree of crosslinking will form a tighter coating after curing, effectively preventing the loss and decomposition of zinc oxide, and further improving the stability of the zinc oxide hybrid material. At the same time, the presence of the organic structure will optimize the optical properties of zinc oxide, enhance its ability to excite active oxygen, and improve its antibacterial and anti-odor effects. In addition, the introduction of double bonds can react with thiol-modified fabrics to improve the adhesion and wear resistance of the coating. From the comparison of the experimental data of Comparative Example 2 and Example 2, it can be found that the present invention can hybridize with zinc oxide under ultraviolet light by introducing thiol groups into the fabric. The double bonds in the material undergo a click reaction, which helps to better combine zinc oxide with the surface of the fabric, accelerate the drying and curing process of the coating, improve the adhesion and wear resistance of the coating, make the zinc oxide and the fabric more closely combined and not easy to fall off, thereby improving the wear resistance of the fabric; from the comparison of the experimental data of Comparative Example 3 with that of Example 2, it can be found that the present invention uses ultraviolet light to assist ultrasonic atomization spraying. Due to the presence of ultraviolet light, the click reaction of the thiol on the surface of the fabric and the vinyl in the zinc oxide hybrid material is stimulated, thereby improving the adhesion and wear resistance of the coating, making the zinc oxide and the fabric more closely combined and not easy to fall off, thereby improving the wear resistance of the fabric; and ultraviolet light irradiation will further stimulate the photocatalytic performance of zinc oxide and improve the antibacterial and anti-odor effect of the fabric; from the comparison of the experimental data of Comparative Example 4 with that of Example 2, it can be found that ultrasonic spraying is better than ordinary spraying, the coating is denser, and the antibacterial, anti-odor and wear resistance of the fabric are greatly improved.

[0067] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations within the meaning and scope of the equivalent elements of the claims be included in the invention. Any marking in a claim should not be considered as limiting the claim to which it relates.

Claims

1. An antibacterial and anti-odor fabric, characterized in that: The antibacterial and anti-odor fabric is prepared by spraying a zinc oxide hybrid material onto the fabric surface through ultraviolet light-assisted ultrasonic atomization.

2. The antibacterial and anti-odor fabric according to claim 1, characterized in that: The zinc oxide hybrid material is prepared from zinc acetate alkoxide and 1,2-bis(triethoxysilyl)ethylene by a sol-gel method.

3. The antibacterial and anti-odor fabric according to claim 2, characterized in that: The fabric is prepared by modifying mercaptoethanol.

4. A method for preparing an antibacterial and anti-odor fabric, characterized in that: The method comprises the following preparation steps: (1) Dissolve zinc acetate dihydrate in deionized water to prepare a zinc acetate solution with a concentration of 0.7-0.8 mol / L, heat to 65-70° C., add oxalic acid alcohol solution in an amount of 3-5 times the molar amount of zinc acetate, stir at 100-150 r / min for 20-30 min, add 1-2 times the molar amount of zinc acetate 1,2-bis(triethoxysilyl)ethylene, stir at 200-250 r / min for 20-30 min, heat to 80-90° C., slowly add 20 wt% ammonia water until the pH is 6-7, and react for 3-5 h to obtain a zinc oxide hybrid material; (2) mercapto adipic acid, hexamethylenediamine and ethanol are mixed in a mass ratio of 1 to 1.5:2 to 3:3, heated to 70 to 75°C, stirred and mixed at 150 to 200 r / min for 3 hours, deionized water is added to prepare an aqueous solution in which the mercapto adipic acid accounts for 63 wt%, 0.7 to 0.8 times the mass of the aqueous solution is added with ethylenediamine acetic acid solution, wherein the molar ratio of hexamethylenediamine to acetic acid in the ethylenediamine acetic acid solution is 4:5, evaporated for 3 to 5 hours at 232°C, 1.72 MPa and nitrogen protection, then heated to 285 to 288°C, reacted for 40 to 45 minutes, reduced pressure to 40 to 45 kPa, cooled to 270 to 272°C, reacted for 50 to 55 minutes, extruded and spun at 270 to 272°C to obtain mercapto polyamide fibers, and woven to obtain mercapto fabrics; (3) The zinc oxide hybrid material is placed in an ultrasonic atomizer, and is ultrasonically atomized and sprayed onto the thiol-modified fabric under ultraviolet light to obtain an antibacterial and anti-odor fabric.

5. The method for preparing an antibacterial and anti-odor fabric according to claim 4, characterized in that: The oxalic acid alcohol solution in step (1) is prepared by dissolving oxalic acid in an anhydrous ethanol solution with a mass of 19 to 21 times that of the oxalic acid, and stirring at 200 to 250 r / min for 5 minutes.

6. The method for preparing an antibacterial and anti-odor fabric according to claim 4, characterized in that: The preparation method of mercapto oxalic acid in step (2) is: The mixture is prepared by mixing mercaptoethanol and cyclohexanecarboxylic acid in a mass ratio of 2 to 3:1, and then dissolved in ether 3 to 5 times the mass of the mixture, and then p-toluenesulfonic acid 0.1 to 0.3 times the mass of mercaptoethanol is added, and stirred at 300 to 500 r / min for 20 to 30 min, and reacted at 65 to 70 ° C and 0.060 to 0.065 MPa for 3 to 5 h, and then at 100 to 105 ° C and 0.080 to 0.085 MPa for 3 h to obtain mercapto cyclohexanecarboxylic acid. Hexane, continue to add 80wt% acetic acid aqueous solution with a molar amount of 3 to 5 times the mass of mercaptocyclohexane and cobalt acetate with a molar amount of 0.04 to 0.15 times the mass of mercaptocyclohexane, then add 50wt% acetaldehyde aqueous solution with a molar amount of 0.5 to 1 times the mass of mercaptocyclohexane, stir at 300 to 500r / min for 30 to 60min, react at 90°C and 1.8MPa for 9h, filter the filtrate while it is hot, bathe in cold water at 0°C to obtain crystals, and recrystallize the crystals with water again to obtain mercapto adipic acid.

7. The method for preparing an antibacterial and anti-odor fabric according to claim 4, characterized in that: In the step (3), the spinning temperature of the polyamide fiber is 270-275° C., the pressure is 10-12 MPa, and the spinning speed is 2900-3200 m / min.

8. The method for preparing an antibacterial and anti-odor fabric according to claim 4, characterized in that: The wavelength of the ultraviolet light irradiation in step (4) is 350-360 nm.

9. The method for preparing an antibacterial and anti-odor fabric according to claim 4, characterized in that: The conditions for ultrasonic atomization spraying in step (4) are as follows: the spraying distance is 1 to 2 cm, the time is 10 to 15 minutes, and the fabric is moved during the spraying process.

10. The method for preparing an antibacterial and anti-odor fabric according to claim 4, characterized in that: The condition of ultrasonic atomization spraying in step (4) is that the spray gun sprays on the surface of the fabric at a spray speed of 6.1 to 6.5 L / min.

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