CN114277463A - Stain-resistant antibacterial composite textile fiber and preparation method thereof - Google Patents
Stain-resistant antibacterial composite textile fiber and preparation method thereof Download PDFInfo
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- CN114277463A CN114277463A CN202210037554.3A CN202210037554A CN114277463A CN 114277463 A CN114277463 A CN 114277463A CN 202210037554 A CN202210037554 A CN 202210037554A CN 114277463 A CN114277463 A CN 114277463A
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- 239000004753 textile Substances 0.000 title claims abstract description 61
- 239000002131 composite material Substances 0.000 title claims abstract description 54
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- 238000002360 preparation method Methods 0.000 title claims abstract description 16
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- 229910001961 silver nitrate Inorganic materials 0.000 claims abstract description 14
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- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims abstract description 9
- 239000012760 heat stabilizer Substances 0.000 claims abstract description 9
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- 229920000573 polyethylene Polymers 0.000 claims description 6
- DCXXMTOCNZCJGO-UHFFFAOYSA-N tristearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC DCXXMTOCNZCJGO-UHFFFAOYSA-N 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 5
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- 229910052788 barium Inorganic materials 0.000 claims description 4
- 238000012986 modification Methods 0.000 claims description 4
- 230000004048 modification Effects 0.000 claims description 4
- 229940012185 zinc palmitate Drugs 0.000 claims description 4
- GJAPSKMAVXDBIU-UHFFFAOYSA-L zinc;hexadecanoate Chemical compound [Zn+2].CCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCC([O-])=O GJAPSKMAVXDBIU-UHFFFAOYSA-L 0.000 claims description 4
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 3
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 3
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 3
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000005642 Oleic acid Substances 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 229910052918 calcium silicate Inorganic materials 0.000 claims description 3
- 235000012241 calcium silicate Nutrition 0.000 claims description 3
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 claims description 3
- 125000006038 hexenyl group Chemical group 0.000 claims description 3
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 3
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- 229940037312 stearamide Drugs 0.000 claims description 3
- 229910052793 cadmium Inorganic materials 0.000 claims description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims description 2
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- 239000002245 particle Substances 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims description 2
- WBHHMMIMDMUBKC-QJWNTBNXSA-M ricinoleate Chemical compound CCCCCC[C@@H](O)C\C=C/CCCCCCCC([O-])=O WBHHMMIMDMUBKC-QJWNTBNXSA-M 0.000 claims description 2
- 229940066675 ricinoleate Drugs 0.000 claims description 2
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- 230000000845 anti-microbial effect Effects 0.000 claims 6
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- 230000003115 biocidal effect Effects 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 abstract description 3
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 15
- 239000000463 material Substances 0.000 description 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 5
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- 235000006508 Nelumbo nucifera Nutrition 0.000 description 4
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 244000052616 bacterial pathogen Species 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
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- HIAAVKYLDRCDFQ-UHFFFAOYSA-L calcium;dodecanoate Chemical compound [Ca+2].CCCCCCCCCCCC([O-])=O.CCCCCCCCCCCC([O-])=O HIAAVKYLDRCDFQ-UHFFFAOYSA-L 0.000 description 1
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Abstract
The invention provides a stain-resistant antibacterial composite textile fiber and a preparation method thereof, belonging to the technical field of textiles. The invention takes polyester fiber, acetate fiber and polyacrylonitrile fiber as raw materials, and sodium dodecyl sulfate, hydrophobic polymer, dispersant, defoamer, heat stabilizer, silver nitrate solution and nano TiO are used in combination2The composite textile fiber material prepared by the invention has stain resistance, self-cleaning and long service lifeThe characteristics of effective antibiosis and bacteriostasis.
Description
Technical Field
The invention relates to the technical field of textiles, in particular to a stain-resistant antibacterial composite textile fiber and a preparation method thereof.
Background
With the rapid development of social economy, the living standard of people is continuously improved, and the health care consciousness is increasingly enhanced. Since the 21 st century, a variety of epidemic diseases have saddled, and the public awareness of antibiosis and sterilization of the living environment of the public is aroused. Therefore, the antibacterial property becomes an important component for improving the living quality of human beings and ensuring the safe living environment of human beings. In the spreading process of pathogenic bacteria, textile fiber is one of the main carriers, while common textile fiber can not resist most of bacterial viruses, and the textile fiber is favorable for microorganism adhesion due to the porous form of the textile fiber, so that the development of the textile fiber with an antibacterial function has great significance.
Conventional composite textile fiber materials are inevitably stained during ordinary use, and the stains adhered to the materials are often difficult to remove. Therefore, the invention aims to develop the composite textile fiber material with stronger antifouling capacity and certain antibacterial function. Patent application No. CN201710531345.3 discloses an antifouling and antibacterial textile fabric and a preparation method thereof, wherein the fabric has the characteristics of oil stain resistance, high strength and durability, but the fabric does not have antibacterial performance.
Disclosure of Invention
In view of the above, the invention provides a stain-resistant and antibacterial composite textile fiber and a preparation method thereof.
The first purpose of the invention is to provide a preparation method of a stain-resistant antibacterial composite textile fiber, which comprises the following steps:
(1) weighing polyester fiber, acetate fiber, polyacrylonitrile fiber, sodium dodecyl sulfate, hydrophobic polymer, dispersant, defoaming agent and heat stabilizer in parts by weight for later use;
(2) uniformly stirring the raw materials, adding the mixture into a high-pressure homogenizer, heating to 150-;
(3) reducing the pressure of the mixture obtained in the step (2) to be consistent with the external atmospheric pressure, heating to 230 ℃ and 250 ℃, and then preserving the heat for 30-35 min;
(4) then adding a heat stabilizer, uniformly stirring, injecting into a reaction kettle, mixing and stirring, wherein the reaction time is 30-50min, and the reaction temperature is 280-300 ℃;
(5) spinning the reactant obtained in the step (4) in a closed environment, performing drawing treatment, degassing and drying, and cooling to room temperature to obtain composite textile fibers;
(6) placing the composite textile fiber obtained in the step (5) in a silver nitrate solution, blending for 20-30 minutes at the temperature of 60-80 ℃ at the speed of 150-300 r/min, and cooling, washing and drying to obtain the antibacterial composite textile fiber;
(7) performing nano TiO treatment on the surface of the antibacterial composite textile fiber obtained in the step (6)2Modifying the aqueous solution to obtain the stain-resistant antibacterial composite textile fiber;
the weight parts of the used raw materials are 10-18 parts of polyester fiber, 10-20 parts of acetate fiber, 10-20 parts of polyacrylonitrile fiber, 2-5 parts of sodium dodecyl sulfate, 1-3 parts of hydrophobic polymer, 2-5 parts of dispersing agent, 2-4 parts of defoaming agent and 2-5 parts of heat stabilizer.
Preferably, the hydrophobic polymer is at least one of polyethylene, polypropylene or paraffin.
Preferably, the dispersant is at least one selected from the group consisting of oleic acid acyl, glyceryl tristearate, hexenyl bis stearamide, polyethylene wax.
Preferably, the heat stabilizer is at least one selected from the group consisting of zinc palmitate, calcium laurate, barium naphthenate and cadmium ricinoleate.
Preferably, the stirring speed in the step (4) is 500-600 rpm.
Preferably, the concentration of the silver nitrate solution in the step (6) is 0.002% -0.007%.
Preferably, the nano TiO in the step (7)2The particle size of (A) is 10-80 nm.
Preferably, the specific steps of the modification treatment in step (7) are as follows: coating nano TiO on the surface of the antibacterial composite textile fiber obtained in the step (6)2And drying the aqueous solution to obtain the finished product.
Preferably, the nano TiO2The concentration of the aqueous solution is 0.06% -0.08%.
Preferably, the nano TiO2The preparation method of the aqueous solution comprises the following steps: firstly, nano TiO is added2Placing in the water solution, then dispersing in an ultrasonic cleaning machine for 30-40min, and immediately emulsifying and dispersing the solution for 50-60min by a high shear emulsifying machine under the condition of 3500-5000 r/min.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention uses the sodium dodecyl sulfate which contains strong hydrophilic sulfonic group and is connected with the polyester fiber, and after being mixed and boiled with the silver nitrate solution with the concentration of 0.002% -0.007%, the dyeable residue of the polyester fiber can be combined with the silver ions in the silver nitrate to form a layered grid structure, and then the silver ions are fixed on the nodes of the polyester fiber to play a stable and durable role, and the silver ions damage the electron transfer system in the pathogenic bacteria to destroy the protein structure thereof, further initiate metabolic disorder, react with the DNA phase of the pathogenic bacteria, and lose the fission and proliferation capability to die, so as to achieve the effect of long-acting antibiosis.
2. According to the invention, the lotus leaf surface has self-cleaning property and water repellency, and researches show that the contact area of water drops and the lotus leaf surface is very small due to the microscopic nipple-shaped convex structure on the lotus leaf surface, so that attached impurities, strong bacteria and the like are easily taken away under the action of the water drops, and the surface is kept clean. Therefore, a lotus leaf effect imitating method can be adopted, and the hydrophobic polymer is added to modify the surface of the textile composite material, so that the textile composite material is endowed with excellent self-cleaning and water repellent properties. By utilizing the synergistic effect between the hydrophobic polymer and other raw materials, water drops roll dirt and dust on the surface of the material together, so that the surface of the material is kept clean, and the surface of the material can still be kept dry even in heavy rain.
3. Carrying out nano TiO treatment on the surface of the composite textile fiber material2And (3) modifying, so that organic matters deposited on the surface of the composite textile fiber material are degraded, and the stain resistance of the composite material is improved.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The test methods or test methods described in the following examples are conventional methods unless otherwise specified; the starting materials and auxiliaries are, unless otherwise specified, obtained from customary commercial sources or prepared in customary manner.
Example 1
A preparation method of a stain-resistant antibacterial composite textile fiber comprises the following steps:
(1) weighing 10 parts of polyester fiber, 10 parts of acetate fiber, 10 parts of polyacrylonitrile fiber, 2 parts of sodium dodecyl sulfate, 1 part of polyethylene, 2 parts of oleic acid acyl, 2 parts of organic silicon defoamer, 2 parts of zinc palmitate, 100 parts of silver nitrate solution with the concentration of 0.002 percent and nano TiO with the concentration of 0.06 percent according to the parts by weight2150 parts of aqueous solution for later use;
(2) stirring the above materials uniformly, adding into a high-pressure homogenizer, heating to 150 deg.C, charging steam, standing for 1 hr under the pressure of 5 MPa;
(3) reducing the pressure of the mixture obtained in the step (2) to be consistent with the external atmospheric pressure, heating to 230 ℃, and then preserving the heat for 30-35 min;
(4) adding zinc palmitate, stirring uniformly, injecting into a reaction kettle, mixing and stirring at the speed of 500 revolutions per minute for 30min, and reacting at the temperature of 280 ℃;
(5) spinning the reactant obtained in the step (4) in a closed environment, performing drawing treatment, degassing and drying, and cooling to room temperature to obtain composite textile fibers;
(6) placing the composite textile fiber obtained in the step (5) in a silver nitrate solution, blending for 20 minutes at 150 revolutions per minute and at 60 ℃, cooling, washing and drying to obtain the antibacterial composite textile fiber;
(7) coating nano TiO on the surface of the antibacterial composite textile fiber obtained in the step (6)2Drying the aqueous solution at 100 ℃ to obtain the stain-resistant antibacterial composite textile fiber;
the nano TiO2The preparation method of the aqueous solution comprises the following steps: firstly, nano TiO is added2Placing in the water solution, then dispersing in an ultrasonic cleaning machine for 30-40min, and immediately emulsifying and dispersing the solution for 50-60min by a high shear emulsifying machine under the condition of 3500-5000 r/min.
Example 2
A preparation method of a stain-resistant antibacterial composite textile fiber comprises the following steps:
(1) weighing 15 parts of polyester fiber, 13 parts of acetate fiber, 13 parts of polyacrylonitrile fiber, 4 parts of sodium dodecyl sulfate, 2 parts of polyethylene, 3 parts of hexenyl bis stearamide, 3 parts of organic silicon defoamer, 4 parts of calcium metasilicate, 100 parts of silver nitrate solution with the concentration of 0.006 percent, and nano TiO with the concentration of 0.07 percent according to the parts by weight2150 parts of aqueous solution for later use;
(2) stirring the above materials uniformly, adding into a high-pressure homogenizer, heating to 180 deg.C, charging steam, standing for 1.2 hr under the pressure of 5 MPa;
(3) reducing the pressure of the mixture obtained in the step (2) to be consistent with the external atmospheric pressure, heating to 230 ℃, and then preserving the heat for 35 min;
(4) then adding calcium metasilicate, uniformly stirring, injecting into a reaction kettle, mixing and stirring at the speed of 500 revolutions per minute for 40min, and reacting at the temperature of 200 ℃;
(5) spinning the reactant obtained in the step (4) in a closed environment, performing drawing treatment, degassing and drying, and cooling to room temperature to obtain composite textile fibers;
(6) placing the composite textile fiber obtained in the step (5) in a silver nitrate solution, blending for 25 minutes at 200 revolutions per minute and at the temperature of 70 ℃, and cooling, washing and drying to obtain the antibacterial composite textile fiber;
(7) coating nano TiO on the surface of the antibacterial composite textile fiber obtained in the step (6)2After the aqueous solution, 100 DEG CDrying to obtain the stain-resistant antibacterial composite textile fiber;
the nano TiO2The preparation method of the aqueous solution comprises the following steps: firstly, nano TiO is added2Placing in the water solution, then dispersing in an ultrasonic cleaning machine for 30-40min, and immediately emulsifying and dispersing the solution for 50-60min by a high shear emulsifying machine under the condition of 3500-5000 r/min.
Example 3
A preparation method of a stain-resistant antibacterial composite textile fiber comprises the following steps:
(1) weighing 18 parts of polyester fiber, 20 parts of acetate fiber, 20 parts of polyacrylonitrile fiber, 5 parts of sodium dodecyl sulfate, 3 parts of polypropylene, 5 parts of tristearin, 4 parts of organic silicon defoamer, 5 parts of barium naphthenate, 100 parts of silver nitrate solution with the concentration of 0.007 percent and nano TiO with the concentration of 0.08 percent according to the parts by weight2150 parts of aqueous solution for later use;
(2) stirring the above materials uniformly, adding into a high-pressure homogenizer, heating to 200 deg.C, charging steam, standing for 1.5 hr under the pressure of 5 MPa;
(3) reducing the pressure of the mixture obtained in the step (2) to be consistent with the external atmospheric pressure, heating to 250 ℃, and then preserving the heat for 35 min;
(4) then adding barium naphthenate, uniformly stirring, injecting into a reaction kettle, mixing and stirring at the speed of 500 revolutions per minute for 50min, and reacting at the temperature of 300 ℃;
(5) spinning the reactant obtained in the step (4) in a closed environment, performing drawing treatment, degassing and drying, and cooling to room temperature to obtain composite textile fibers;
(6) placing the composite textile fiber obtained in the step (5) in a silver nitrate solution, blending for 30 minutes at 300 revolutions per minute and at the temperature of 80 ℃, and cooling, washing and drying to obtain the antibacterial composite textile fiber;
(7) coating nano TiO on the surface of the antibacterial composite textile fiber obtained in the step (6)2Drying the aqueous solution at 100 ℃ to obtain the stain-resistant antibacterial composite textile fiber;
the nano TiO2The preparation method of the aqueous solution comprises the following steps:firstly, nano TiO is added2Placing in the water solution, then dispersing in an ultrasonic cleaning machine for 30-40min, and immediately emulsifying and dispersing the solution for 50-60min by a high shear emulsifying machine under the condition of 3500-5000 r/min.
Comparative example 1
The same as example 1 except that the hydrophobic polymer was not added as compared with example 1.
Comparative example 2
The same procedure as in example 1 was repeated except that the impregnation was not carried out with the silver nitrate solution as compared with example 1.
Comparative example 3
Compared with example 1, nano TiO is not adopted2The aqueous solution was modified, and the rest was the same as in example 1.
The results of the performance tests of the prepared stain-resistant antibacterial composite textile fiber material are shown in table 1.
The prepared stain-resistant antibacterial composite textile fiber materials of examples 1-3 and comparative examples 1-3 were subjected to oil repellency, stain resistance and bacteriostatic performance tests of escherichia coli and staphylococcus aureus, and the test results were as follows:
the foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A preparation method of a stain-resistant antibacterial composite textile fiber is characterized by comprising the following steps:
(1) weighing polyester fiber, acetate fiber, polyacrylonitrile fiber, sodium dodecyl sulfate, hydrophobic polymer, dispersant, defoaming agent and heat stabilizer in parts by weight for later use;
(2) uniformly stirring the raw materials, adding the mixture into a high-pressure homogenizer, heating to 150-;
(3) reducing the pressure of the mixture obtained in the step (2) to be consistent with the external atmospheric pressure, heating to 230 ℃ and 250 ℃, and then preserving the heat for 30-35 min;
(4) then adding a heat stabilizer, uniformly stirring, injecting into a reaction kettle, mixing and stirring, wherein the reaction time is 30-50min, and the reaction temperature is 280-300 ℃;
(5) spinning the reactant obtained in the step (4) in a closed environment, performing drawing treatment, degassing and drying, and cooling to room temperature to obtain composite textile fibers;
(6) placing the composite textile fiber obtained in the step (5) in a silver nitrate solution, blending for 20-30 minutes at the temperature of 60-80 ℃ at the speed of 150-300 r/min, and cooling, washing and drying to obtain the antibacterial composite textile fiber;
(7) performing nano TiO treatment on the surface of the antibacterial composite textile fiber obtained in the step (6)2Modifying the aqueous solution to obtain the stain-resistant antibacterial composite textile fiber;
the weight parts of the used raw materials are 10-18 parts of polyester fiber, 10-20 parts of acetate fiber, 10-20 parts of polyacrylonitrile fiber, 2-5 parts of sodium dodecyl sulfate, 1-3 parts of hydrophobic polymer, 2-5 parts of dispersing agent, 2-4 parts of defoaming agent and 2-5 parts of heat stabilizer.
2. The method of preparing a stain resistant, antimicrobial composite textile fiber according to claim 1 wherein the hydrophobic polymer is at least one of polyethylene, polypropylene or paraffin wax.
3. The method of claim 1, wherein the dispersant is at least one selected from the group consisting of oleic acid acyl, glyceryl tristearate, hexenyl bis stearamide, polyethylene wax.
4. The method of claim 1 wherein the heat stabilizer is at least one selected from the group consisting of zinc palmitate, calcium metasilicate, barium naphthenate and cadmium ricinoleate.
5. The method for preparing stain-resistant antibacterial composite textile fiber according to claim 1, wherein the stirring speed in step (4) is 500-600 rpm.
6. The method for preparing a stain resistant, antimicrobial composite textile fiber as claimed in claim 1 wherein the concentration of the silver nitrate solution in step (6) is 0.002% -0.007%.
7. The method for preparing stain-resistant antimicrobial composite textile fiber according to claim 1, wherein the nano TiO in the step (7)2The particle size of (A) is 10-80 nm.
8. The method for preparing a stain-resistant, antimicrobial composite textile fiber according to claim 1, wherein the specific steps of the modification treatment in step (7) are as follows: coating nano TiO on the surface of the antibacterial composite textile fiber obtained in the step (6)2And drying the aqueous solution to obtain the finished product.
9. The method for preparing stain-resistant antimicrobial composite textile fibers according to claim 1, wherein preferably the nano TiO is2The concentration of the aqueous solution is 0.06% -0.08%.
10. The method of preparing stain-resistant, antimicrobial composite textile fibers of claim 1 wherein the nano-TiO is2The preparation method of the aqueous solution comprises the following steps: firstly, nano TiO is added2Placing in the water solution, then dispersing in an ultrasonic cleaning machine for 30-40min, and immediately emulsifying and dispersing the solution for 50-60min by a high shear emulsifying machine under the condition of 3500-5000 r/min.
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