An antibacterial sweat-wicking fabric and its preparation method

Abstract

The present invention relates to the technical field of textile fabrics, and discloses an antibacterial and sweat-wicking fabric and a preparation method thereof. The antibacterial and sweat-wicking fabric in the present invention is composed of an inner layer and an outer layer, and the inner layer and the outer layer are connected by binding warp threads; the inner layer is made by warp knitting with antibacterial cotton fibers as warp threads and hydrophobic antibacterial fibers as weft threads, and the outer layer is woven with hydrophilic antibacterial fibers as warp threads and weft threads; wherein, the inner layer has a certain hydrophobicity and antibacterial property, the outer layer has a certain hydrophilicity and antibacterial property, and the fabric made after connecting the inner layer and the outer layer has different hygroscopicities on the inside and outside layers. The inner layer fabric is hydrophobic and the outer layer fabric is hydrophilic. Under the action of differential capillary effect, sweat is adsorbed onto the outer surface layer of the fabric and quickly volatilized, thereby endowing the fabric with excellent sweat-wicking performance.

Description

Technical Field

[0001] The present invention relates to the technical field of textile fabrics, and particularly relates to an antibacterial and sweat-wicking fabric and a preparation method thereof. Background Art

[0002] With the improvement of living standards, people's requirements for wearing comfort are getting higher and higher, and the technological content of clothing fabrics is also gradually increasing. People not only pursue appearance but also hope to get the most considerate protection. Especially in hot summer and during exercise, they hope that the fabric can absorb and wick away sweat to avoid the discomfort of sweating profusely and feeling stuffy, wet, and cold. The existing fabrics have poor moisture absorption and sweat-wicking performance. Especially in the case of a large amount of sweating, traditional fabrics such as cotton fibers will absorb a large amount of sweat and become wet and heavy, sticking to the skin, causing the wearer to feel stuffy and uncomfortable. At the same time, the human body is prone to produce odors and bacterial reproduction after sweating, thus affecting people's health.

[0003] Therefore, based on the disadvantages of poor antibacterial performance and poor moisture absorption and sweat-wicking performance of traditional fabrics, it is very necessary to research and develop a fabric with good moisture absorption and sweat-wicking properties and antibacterial properties as the raw material for clothing, and it has broad market prospects. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides an antibacterial and sweat-wicking fabric and a preparation method thereof.

[0005] The object of the present invention can be achieved by the following technical solutions:

[0006] An antibacterial and sweat-wicking fabric, comprising an inner layer and an outer layer, and the inner layer and the outer layer are connected by binding warp threads;

[0007] The inner layer is woven by warp threads and weft threads; the warp threads are antibacterial cotton fibers, and the weft threads are hydrophobic antibacterial fibers; the antibacterial cotton fibers are obtained by impregnating cotton fibers in a composite antibacterial agent solution and then drying; the hydrophobic antibacterial fibers comprise the following raw materials in parts by weight: 80 - 100 parts of polyethylene terephthalate, 7 - 13 parts of a composite antibacterial agent, and 2 - 5 parts of an antioxidant; the outer layer is woven by hydrophilic antibacterial fibers.

[0008] Further, the antibacterial cotton fibers are prepared by the following steps: impregnating 10 g of cotton fibers in 50 mL of a 3 - 5 g / L composite antibacterial agent solution for 2 - 6 times, with each time being 10 - 40 min, and then drying to obtain the antibacterial cotton fibers;

[0009] Further, the antioxidant is one of antioxidant 164 or antioxidant 1010;

[0010] The composite antibacterial agent is prepared by the following steps:

[0011] Step A1: Stir molybdenum disulfide nanosheets in deionized water for 5 - 15 min, ultrasonicate for 2 - 3 h, then add mercaptoethylamine solution and continue ultrasonically dispersing for 24 - 48 h, wash and freeze-dry to obtain pretreated molybdenum disulfide;

[0012] Step A2: Stir the pretreated molybdenum disulfide evenly in N,N-dimethylformamide, slowly add 0.05 - 0.2 mol / L silver nitrate solution, adjust the pH to 10 - 11, then add 80 wt% hydrazine hydrate, raise the temperature to 35 - 45 °C and stir for reaction for 30 - 50 min, filter with suction, wash, and then transfer to ethanol and soak for 2 - 3 h, filter and dry to obtain molybdenum disulfide@silver nanomaterial;

[0013] Step A3: Under nitrogen atmosphere, disperse lignin fibers in N,N-dimethylformamide, add 3-bromopropyltrimethoxysilane and sodium hydroxide, stir and react at room temperature for 12 - 20 h, centrifuge, wash and dry to obtain modified lignin;

[0014] Step A4: Under nitrogen atmosphere, disperse molybdenum disulfide@silver nanomaterial in N,N-dimethylformamide, add γ-mercaptopropyltrimethoxysilane and ultrasonically stir for reaction for 12 - 24 h, wash and filter, collect the product and redisperse it in a mixed solution of ethanol and deionized water (the volume ratio of ethanol to deionized water is 9:1), then add modified lignin and methyltrimethoxysilane and stir for reaction for 8 - 12 h, filter, wash and dry to obtain the composite antibacterial agent;

[0015] Furthermore, in Step A1, the dosage ratio of molybdenum disulfide nanosheets, deionized water and mercaptoethylamine solution is 1 - 2 g: 50 mL: 10 mL, and the mercaptoethylamine solution is prepared by mixing mercaptoethylamine and deionized water in a dosage ratio of 0.7 - 2 g: 10 mL;

[0016] Furthermore, in Step A2, the dosage ratio of pretreated molybdenum disulfide, N,N-dimethylformamide, silver nitrate solution, hydrazine hydrate and ethanol is 2 - 5 g: 100 mL: 100 mL: 40 - 70 mL: 200 mL;

[0017] Furthermore, in Step A3, the dosage ratio of lignin fibers, N,N-dimethylformamide, 3-bromopropyltrimethoxysilane and sodium hydroxide is 2 - 3 g: 100 mL: 1.5 - 3.5 g: 2 - 4 g;

[0018] Furthermore, in Step A4, the dosage ratio of molybdenum disulfide@silver nanomaterial, N,N-dimethylformamide, γ-mercaptopropyltrimethoxysilane, mixed solution, modified lignin and methyltrimethoxysilane is 2 - 3 g: 50 mL: 0.5 - 2 mL: 100 mL: 1.5 - 3.5 g: 2 - 3 mL.

[0019] The hydrophilic antibacterial fiber is prepared by the following steps:

[0020] Step B1, ultrasonically treating the cotton fiber in an ethanol solution for 0.5-1.5 h, filtering, drying, and then soaking in a 0.5-1 mol / L sodium hydroxide solution for 8-12 h, filtering, washing, and drying to obtain pre-treated cotton fiber;

[0021] Step B2, mixing the pretreated cotton fiber and polyethylene glycol (molecular weight of 200) in methanol and stirring evenly, then adding 3-5wt% glutaraldehyde solution, and heating to 40-50°C, stirring and reacting for 3-5h, filtering, washing, drying, and then redispersing in 3-5g / L composite antibacterial agent solution and immersing 3-5 times, each time for 15-25min, and drying to obtain hydrophilic antibacterial fiber;

[0022] Further, in step B1, the mass ratio of the cotton fiber, the ethanol solution and the sodium hydroxide solution is 1:10:20, and the ethanol solution is prepared by mixing ethanol and deionized water in a mass ratio of 5-7:3-5;

[0023] Furthermore, in step B2, the dosage ratio of the pre-treated cotton fiber, polyethylene glycol, methanol, glutaraldehyde solution, and composite antibacterial agent solution is 10 g: 1-3 g: 100 mL: 10 mL: 100 mL.

[0024] A method for preparing an antibacterial perspiration-wicking fabric comprises the following steps:

[0025] Step S1, weighing raw materials by weight, mixing polyethylene terephthalate, composite antibacterial agent and antioxidant for 30 minutes, transferring to a twin-screw extruder for extrusion, granulation, drying, and melt spinning to obtain hydrophobic antibacterial fiber; then using antibacterial cotton fiber as warp and hydrophobic antibacterial fiber as weft to obtain an inner layer through warp weaving;

[0026] Step S2, using the hydrophilic antibacterial fiber as the warp and weft to weave to obtain an outer layer;

[0027] Step S3, connecting the inner layer and the outer layer by a knot to obtain an antibacterial and perspiration-wicking fabric;

[0028] Furthermore, in step S1 and step S2, the warp density is 75-80 strands / cm, and the weft density is 52-56 strands / cm.

[0029] Beneficial effects of the present invention:

[0030] The antibacterial and sweat-wicking fabric in the present invention consists of an inner layer and an outer layer, which are connected by binding warp threads. The inner layer is made by warp knitting with antibacterial cotton fibers as warp threads and hydrophobic antibacterial fibers as weft threads, while the outer layer is woven with hydrophilic antibacterial fibers as both warp and weft threads. Among them, the inner layer has certain hydrophobicity and antibacterial properties, and the outer layer has certain hydrophilicity and antibacterial properties. After the inner layer and the outer layer are connected, the fabric made has different moisture absorption properties for the two layers. The inner layer fabric is hydrophobic and the outer layer fabric is hydrophilic. Under the action of differential capillary effect, sweat is adsorbed onto the outer surface of the fabric and quickly volatilized, thereby endowing the fabric with excellent sweat-wicking performance.

[0031] In the composite antibacterial agent, first, mercaptoethylamine is used to modify the interlayer and surface of molybdenum disulfide to obtain pretreated molybdenum disulfide. Then, silver nitrate is used to provide silver ions, and silver ions are chelated on the surface and interlayer of the pretreated molybdenum disulfide. Hydrazine hydrate is used as a reducing agent to reduce the silver ions in molybdenum disulfide to silver, obtaining molybdenum disulfide@silver nanomaterials. Then, 3-bromopropyltrimethoxysilane is used to react with the active groups in lignin fibers to obtain modified lignin. Finally, γ-mercaptopropyltrimethoxysilane is used to react with molybdenum disulfide@silver nanomaterials, and then modified lignin and methyltrimethoxysilane are added for hydrolysis and condensation to obtain the composite antibacterial agent. The synergistic effect of molybdenum disulfide, silver, and lignin in the composite antibacterial agent can improve the antibacterial performance of fiber materials. Among them, molybdenum disulfide uses its large specific surface area to adsorb and kill bacteria, and at the same time can generate free radicals and peroxides, which can destroy the cell membrane and DNA and other structures of bacteria, thereby killing bacteria. Silver itself has excellent antibacterial properties, and loading it on molybdenum disulfide can further improve the antibacterial performance of fiber materials. Lignin, as an organic polymer, not only has antibacterial properties but also can use the active groups it contains to form hydrogen bonds with fibers, thereby firmly adsorbing the composite antibacterial agent on the fiber surface. In addition, the siloxane in the composite antibacterial agent can be hydrolyzed and condensed to form silanol bonds, and the silanol bonds can chemically bond with the hydroxyl groups on the fiber surface, thereby firmly fixing on the fiber surface and enabling the fiber to have long-term antibacterial effects.

[0032] In the hydrophilic antibacterial fiber, first, cotton fibers are activated with an ethanol solution and an alkali solution, then polyethylene glycol is grafted onto the cotton fibers using glutaraldehyde as a grafting intermediate, and finally, the grafted and modified cotton fibers are impregnated in a composite antibacterial agent solution for antibacterial treatment to obtain the hydrophilic antibacterial fiber. The hydrophilic antibacterial fiber uses cotton fibers as the matrix, activates them to expose more active hydroxyl groups on the surface, then grafts polyethylene glycol with excellent hydrophilic properties onto its surface to improve the hydrophilic properties of the cotton fibers, and finally uses the silanol bonds in the composite antibacterial agent to react with the hydroxyl groups on the cotton fiber surface to endow the cotton fibers with certain antibacterial properties. Detailed implementation methods

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Apparently, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Example 1: The composite antibacterial agent is prepared by the following steps:

[0035] Step A1: Stir 1 g of molybdenum disulfide nanosheets in 50 mL of deionized water for 5 min, ultrasonicate for 2 h, then add 10 mL of mercaptoethylamine solution, and continue ultrasonic dispersion for 24 h. Wash and freeze-dry to obtain pretreated molybdenum disulfide. The mercaptoethylamine solution is prepared by mixing mercaptoethylamine and deionized water at a dosage ratio of 0.7 g:10 mL.

[0036] Step A2: Stir 2 g of pretreated molybdenum disulfide evenly in 100 mL of N,N-dimethylformamide. Slowly add 100 mL of 0.05 mol / L silver nitrate solution and adjust the pH to 10. Then add 40 mL of 80 wt% hydrazine hydrate, raise the temperature to 35 °C and stir for 30 min. Filter, wash, and then transfer to 200 mL of ethanol and soak for 2 h. Filter and dry to obtain molybdenum disulfide@silver nanomaterials.

[0037] Step A3: Under nitrogen conditions, disperse 2 g of lignin fibers in 100 mL of N,N-dimethylformamide, add 1.5 g of 3-bromopropyltrimethoxysilane and 2 g of sodium hydroxide, and stir at room temperature for 12 h. Centrifuge, wash, and dry to obtain modified lignin.

[0038] Step A4: Under nitrogen conditions, disperse 2 g of molybdenum disulfide@silver nanomaterials in 50 mL of N,N-dimethylformamide, add 0.5 mL of γ-mercaptopropyltrimethoxysilane and ultrasonically stir for 12 h. Wash and filter, collect the product, and redisperse it in a mixed solution of 100 mL of ethanol and deionized water (the volume ratio of ethanol to deionized water is 9:1). Then add 1.5 g of modified lignin and 2 mL of methyltrimethoxysilane and stir for 8 h. Filter, wash, and dry to obtain the composite antibacterial agent.

[0039] The antibacterial cotton fibers are prepared by the following steps: Immerse 10 g of cotton fibers in 50 mL of 3 g / L composite antibacterial agent solution twice, each time for 10 min, and then dry to obtain the antibacterial cotton fibers.

[0040] The hydrophilic antibacterial fibers are prepared by the following steps:

[0041] Step B1: Ultrasonically treat 10 g of cotton fibers in 100 g of ethanol solution for 0.5 h, filter and dry, then soak in 200 g of 0.5 mol / L sodium hydroxide solution for 8 h, filter, wash and dry to obtain pretreated cotton fibers. The ethanol solution is prepared by mixing ethanol and deionized water in a mass ratio of 5:5;

[0042] Step B2: Mix 10 g of pretreated cotton fibers and 1 g of polyethylene glycol (molecular weight 200) evenly in 100 mL of methanol, add 10 mL of 3 wt% glutaraldehyde solution, and raise the temperature to 40 °C, stir and react for 3 h, filter, wash and dry, then redisperse in 100 mL of 3 g / L composite antibacterial agent solution and impregnate 3 times, with each time being 15 min, and dry to obtain hydrophilic antibacterial fibers.

[0043] Example 2: The composite antibacterial agent is prepared by the following steps:

[0044] Step A1: Stir 1.5 g of molybdenum disulfide nanosheets in 50 mL of deionized water for 10 min, ultrasonically treat for 2.5 h, then add 10 mL of mercaptoethylamine solution, continue ultrasonic dispersion for 36 h, wash and freeze-dry to obtain pretreated molybdenum disulfide. The mercaptoethylamine solution is prepared by mixing mercaptoethylamine and deionized water in a dosage ratio of 1.4 g:10 mL;

[0045] Step A2: Stir 3.5 g of pretreated molybdenum disulfide evenly in 100 mL of N,N-dimethylformamide, slowly add 100 mL of 0.1 mol / L silver nitrate solution, and adjust the pH to 10.5, then add 55 mL of 80 wt% hydrazine hydrate, raise the temperature to 40 °C and stir and react for 40 min, filter and wash, then transfer to 200 mL of ethanol and soak for 2.5 h, filter and dry to obtain molybdenum disulfide@silver nanomaterial;

[0046] Step A3: Under nitrogen conditions, disperse 2.5 g of lignin fibers in 100 mL of N,N-dimethylformamide, add 2.5 g of 3-bromopropyltrimethoxysilane and 3 g of sodium hydroxide, stir and react at room temperature for 16 h, centrifuge, wash and dry to obtain modified lignin;

[0047] Step A4: Under nitrogen conditions, disperse 2.5 g of molybdenum disulfide@silver nanomaterial in 50 mL of N,N-dimethylformamide, add 1 mL of γ-mercaptopropyltrimethoxysilane and ultrasonically stir and react for 18 h, wash and filter, collect the product, and redisperse in a mixed solution of 100 mL of ethanol and deionized water (the volume ratio of ethanol to deionized water is 9:1), then add 2.5 g of modified lignin and 2.5 mL of methyltrimethoxysilane and stir and react for 10 h, filter, wash and dry to obtain the composite antibacterial agent.

[0048] The antibacterial cotton fiber is prepared by the following steps: impregnate 10 g of cotton fiber in 50 mL of a 4 g / L composite antibacterial agent solution 4 times, with each time being 25 min, and then dry it to obtain the antibacterial cotton fiber.

[0049] The hydrophilic antibacterial fiber is prepared by the following steps:

[0050] Step B1: Ultrasonically treat 10 g of cotton fiber in 100 g of an ethanol solution for 1 h, filter and dry it, then soak it in 200 g of a 0.7 mol / L sodium hydroxide solution for 10 h, filter, wash and dry it to obtain the pretreated cotton fiber. The ethanol solution is prepared by mixing ethanol and deionized water in a mass ratio of 6:4.

[0051] Step B2: Mix 10 g of the pretreated cotton fiber and 2 g of polyethylene glycol (molecular weight 200) evenly in 100 mL of methanol, add 10 mL of a 4 wt% glutaraldehyde solution, and raise the temperature to 45 °C, stir and react for 4 h, filter, wash and dry it. Then redisperse it in 100 mL of a 4 g / L composite antibacterial agent solution and impregnate it 4 times, with each time being 20 min, and then dry it to obtain the hydrophilic antibacterial fiber.

[0052] Example 3: The composite antibacterial agent is prepared by the following steps:

[0053] Step A1: Stir 2 g of molybdenum disulfide nanosheets in 50 mL of deionized water for 15 min, ultrasonically treat for 3 h, then add 10 mL of a mercaptoethylamine solution, and continue to ultrasonically disperse for 48 h, wash and freeze-dry it to obtain the pretreated molybdenum disulfide. The mercaptoethylamine solution is prepared by mixing mercaptoethylamine and deionized water in a dosage ratio of 2 g:10 mL.

[0054] Step A2: Stir 5 g of the pretreated molybdenum disulfide evenly in 100 mL of N,N-dimethylformamide, slowly add 100 mL of a 0.2 mol / L silver nitrate solution, and adjust the pH to 11. Then add 70 mL of 80 wt% hydrazine hydrate, raise the temperature to 45 °C and stir and react for 50 min, filter and wash, and then transfer it to 200 mL of ethanol and soak it for 3 h, filter and dry it to obtain the molybdenum disulfide@silver nanomaterial.

[0055] Step A3: Under nitrogen conditions, disperse 3 g of lignin fiber in 100 mL of N,N-dimethylformamide, add 3.5 g of 3-bromopropyltrimethoxysilane and 4 g of sodium hydroxide, stir and react at room temperature for 20 h, centrifuge, wash and dry it to obtain the modified lignin.

[0056] Step A4: Under nitrogen conditions, disperse 3 g of molybdenum disulfide@silver nanomaterials in 50 mL of N,N-dimethylformamide, add 2 mL of γ-mercaptopropyltrimethoxysilane, and carry out ultrasonic stirring reaction for 24 h. Wash, filter, collect the product, and redisperse it in a mixed solution of 100 mL of ethanol and deionized water (the volume ratio of ethanol to deionized water is 9:1). Then add 3.5 g of modified lignin and 3 mL of methyltrimethoxysilane, and carry out stirring reaction for 12 h. Filter, wash, and dry to obtain the composite antibacterial agent.

[0057] The antibacterial cotton fiber is prepared by the following steps: Immerse 10 g of cotton fiber in a 50 mL, 5 g / L composite antibacterial agent solution for 6 times, with each time being 40 min, and then dry it to obtain the antibacterial cotton fiber.

[0058] The hydrophilic antibacterial fiber is prepared by the following steps:

[0059] Step B1: Ultrasonically treat 10 g of cotton fiber in 100 g of ethanol solution for 1.5 h, filter and dry it, then immerse it in 200 g of 1 mol / L sodium hydroxide solution for 12 h, filter, wash, and dry to obtain the pretreated cotton fiber. The ethanol solution is prepared by mixing ethanol and deionized water in a mass ratio of 7:3;

[0060] Step B2: Mix 10 g of the pretreated cotton fiber and 3 g of polyethylene glycol (molecular weight 200) evenly in 100 mL of methanol, then add 10 mL of 5 wt% glutaraldehyde solution, and raise the temperature to 50 °C. Stir and react for 5 h, filter, wash, and dry. Then redisperse it in 100 mL of 5 g / L composite antibacterial agent solution and immerse it for 5 times, with each time being 25 min, and then dry it to obtain the hydrophilic antibacterial fiber.

[0061] Example 4: A preparation method of an antibacterial and sweat-wicking fabric includes the following steps:

[0062] Step S1: Weigh the raw materials by weight. Mix 80 parts of polyethylene terephthalate, 7 parts of the composite antibacterial agent prepared in Example 1, and 2 parts of antioxidant 164 and stir for 30 min. Transfer it to a twin-screw extruder for extrusion, granulation, and drying, and then carry out melt spinning to obtain the hydrophobic antibacterial fiber. Then use the antibacterial cotton fiber prepared in Example 1 as the warp and the hydrophobic antibacterial fiber as the weft to obtain the inner layer by warp knitting. The warp density is 75 roots / cm, and the weft density is 52 roots / cm;

[0063] Step S2: Use the hydrophilic antibacterial fiber prepared in Example 1 as the warp and weft to obtain the outer layer by warp knitting. The warp density is 75 roots / cm, and the weft density is 52 roots / cm;

[0064] Step S3: Connect the inner layer and the outer layer through the binding warp to obtain the antibacterial and sweat-wicking fabric.

[0065] Example 5: A method for preparing an antibacterial sweat-absorbent fabric comprises the following steps:

[0066] Step S1: Weigh the raw materials by weight. Mix 90 parts of polyethylene terephthalate, 10 parts of the composite antibacterial agent prepared in Example 2, and 3.5 parts of antioxidant 1010, stir for 30 min, transfer to a twin-screw extruder for extrusion, granulation, drying, and melt spinning to obtain hydrophobic antibacterial fibers. Then, use the antibacterial cotton fibers prepared in Example 2 as the warp and the hydrophobic antibacterial fibers as the weft, and warp-knit to obtain the inner layer, with the warp density being 77 roots / cm and the weft density being 54 roots / cm.

[0067] Step S2: Use the hydrophilic antibacterial fibers prepared in Example 2 as the warp and weft, and warp-knit to obtain the outer layer, with the warp density being 77 roots / cm and the weft density being 54 roots / cm.

[0068] Step S3: Connect the inner layer and the outer layer through the binding warp to obtain the antibacterial sweat-absorbent fabric.

[0069] Example 6: A method for preparing an antibacterial sweat-absorbent fabric comprises the following steps:

[0070] Step S1: Weigh the raw materials by weight. Mix 100 parts of polyethylene terephthalate, 13 parts of the composite antibacterial agent prepared in Example 3, and 5 parts of antioxidant 1010, stir for 30 min, transfer to a twin-screw extruder for extrusion, granulation, drying, and melt spinning to obtain hydrophobic antibacterial fibers. Then, use the antibacterial cotton fibers prepared in Example 3 as the warp and the hydrophobic antibacterial fibers as the weft, and warp-knit to obtain the inner layer, with the warp density being 80 roots / cm and the weft density being 56 roots / cm.

[0071] Step S2: Use the hydrophilic antibacterial fibers prepared in Example 3 as the warp and weft, and warp-knit to obtain the outer layer, with the warp density being 80 roots / cm and the weft density being 56 roots / cm.

[0072] Step S3: Connect the inner layer and the outer layer through the binding warp to obtain the antibacterial sweat-absorbent fabric.

[0073] Comparative Example 1: This comparative example is a fabric. The difference from Example 6 is that the composite antibacterial agent prepared in Example 3 is replaced by antibacterial agent DXN-HF30, and the rest are the same.

[0074] Comparative Example 2: This comparative example is a fabric. The difference from Example 6 is that it is prepared by the following steps:

[0075] Step S1: Use the antibacterial cotton fibers prepared in Example 3 as the warp and weft, and warp-knit to obtain the inner layer, with the warp density being 80 roots / cm and the weft density being 56 roots / cm.

[0076] Step S2: Use the hydrophilic antibacterial fiber prepared in Example 3 as the warp and weft, and obtain the outer layer by warp knitting. The warp density is 80 threads / cm, and the weft density is 56 threads / cm;

[0077] Step S3: Connect the inner layer and the outer layer through the binding warp to obtain the antibacterial and sweat-wicking fabric.

[0078] Comparative Example 3: This comparative example is a fabric, which is different from Example 6 and is prepared by the following steps:

[0079] Step S1: Weigh the raw materials by weight. Mix 100 parts of polyethylene terephthalate, 13 parts of the composite antibacterial agent prepared in Example 3, and 5 parts of antioxidant 1010 and stir for 30 min. Transfer to a twin-screw extruder for extrusion, granulation, drying, and melt spinning to obtain the hydrophobic antibacterial fiber; then use the antibacterial cotton fiber prepared in Example 3 as the warp and the hydrophobic antibacterial fiber as the weft, and obtain the inner layer by warp knitting. The warp density is 80 threads / cm, and the weft density is 56 threads / cm;

[0080] Step S2: Use the antibacterial cotton fiber prepared in Example 3 as the warp and weft, and obtain the outer layer by warp knitting. The warp density is 80 threads / cm, and the weft density is 56 threads / cm;

[0081] Step S3: Connect the inner layer and the outer layer through the binding warp to obtain the antibacterial and sweat-wicking fabric.

[0082] Perform performance tests on the fabrics prepared in Examples 4-6 and Comparative Examples 1-3:

[0083] Sweat-wicking performance test: Refer to GB / T 21655.1-2008 "Evaluation of moisture absorption and quick-drying properties of textiles - Part 1: Single combination test method" for the test. Cut five 10 cm × 10 cm specimens at different positions of the fabrics prepared in the examples and comparative examples. Perform conditioning treatment on the cut specimens. Condition for 24 h at standard atmospheric pressure, 20 °C, and relative humidity of 64%. Weigh the conditioned specimens to obtain the dry weight of the specimens. Then use a pipette to suck 0.2 g of water and drop the water vertically onto the surface of the specimens. Immediately weigh the specimens after the water droplets have completely penetrated into the specimens to obtain the weight of the specimens after infiltration. Then hang the fabric vertically in the standard atmospheric pressure environment and weigh the specimens once every 5 min to obtain the weight of the specimens after infiltration at this time point. The weighing of the specimens needs to be accurate to 0.001 g. The experiment can be ended until the change in the weight of the specimens weighed continuously twice does not exceed 1%;

[0084] Antibacterial performance test: Test and analyze this series of fabrics according to GB / T 20944.3-2008 "Evaluation of antibacterial properties of textiles - Part 3: Oscillation method";

[0085] The test results are shown in Table 1 as follows:

[0086] Table 1: Performance Test Results

[0087]

[0088] As can be seen from Table 1, for the fabric prepared by the present invention, after the sweat discharge performance and antibacterial performance tests, the quick-drying rate is in the range of (0.329 - 0.366) g / h, the antibacterial rate against Escherichia coli is in the range of (99.1 - 99.5)%, and the antibacterial rate against Staphylococcus aureus is in the range of (98.6 - 99.1)%, indicating that the fabric prepared by the present invention has excellent antibacterial and sweat discharge performances.

[0089] The above content is only an example and illustration of the concept of the present invention. Those skilled in the art of this technology can make various modifications or supplements to the specific embodiments described or use similar methods for substitution. As long as they do not deviate from the scope defined by the concept of the invention, they shall fall within the protection scope of the present invention.

Claims

1. An antibacterial and perspiration-wicking fabric, characterized in that: It includes an inner layer and an outer layer, and the inner layer and the outer layer are connected by a knot warp; The inner layer is woven by warp and weft; the warp is antibacterial cotton fiber, and the weft is hydrophobic antibacterial fiber; The antibacterial cotton fiber is prepared by dipping the cotton fiber in a composite antibacterial agent solution and drying it; The hydrophobic antibacterial fiber comprises the following raw materials in parts by weight: 80-100 parts of polyethylene terephthalate, 7-13 parts of a composite antibacterial agent, and 2-5 parts of an antioxidant; the outer layer is formed by interweaving hydrophilic antibacterial fibers; The antioxidant is one of antioxidant 164 or antioxidant 1010; The composite antibacterial agent is prepared by the following steps: Step A1, stirring the molybdenum disulfide nanosheets in deionized water for 5-15 minutes, ultrasonicating for 2-3 hours, adding mercaptoethylamine solution, continuing ultrasonic dispersion for 24-48 hours, washing, and freeze-drying to obtain pre-treated molybdenum disulfide; Step A2, stirring the pretreated molybdenum disulfide in N,N-dimethylformamide, slowly adding 0.05-0.2 mol / L silver nitrate solution, adjusting the pH to 10-11, adding 80 wt% hydrazine hydrate, heating to 35-45° C., stirring and reacting for 30-50 min, filtering, washing, and then transferring to ethanol to soak for 2-3 h, filtering, and drying to obtain molybdenum disulfide@silver nanomaterial; Step A3, under nitrogen conditions, dispersing lignin fibers in N,N-dimethylformamide, adding 3-bromopropyltrimethoxysilane and sodium hydroxide, stirring and reacting at room temperature for 12-20 hours, centrifuging, washing, and drying to obtain modified lignin; Step A4, under nitrogen conditions, disperse the molybdenum disulfide@silver nanomaterial in N,N-dimethylformamide, add γ-mercaptopropyltrimethoxysilane and ultrasonically stir to react for 12-24 hours, wash, filter, collect the product, and redisperse it in a mixture of ethanol and deionized water, then add modified lignin and methyltrimethoxysilane and stir to react for 8-12 hours, filter, wash and dry to obtain a composite antibacterial agent.

2. The antibacterial perspiration fabric according to claim 1, characterized in that: The antibacterial cotton fiber is prepared by the following steps: 10g of cotton fiber is immersed in 50mL of 3-5g / L composite antibacterial agent solution for 2-6 times, each time for 10-40min, and dried to obtain the antibacterial cotton fiber.

3. The antibacterial perspiration-wicking fabric according to claim 1, characterized in that: In step A1, the molybdenum disulfide nanosheets, deionized water and mercaptoethylamine solution are used in a ratio of 1-2 g: 50 mL: 10 mL, and the mercaptoethylamine solution is prepared by mixing mercaptoethylamine and deionized water in a ratio of 0.7-2 g: 10 mL.

4. The antibacterial perspiration-wicking fabric according to claim 1, characterized in that: In step A2, the usage ratio of pre-treated molybdenum disulfide, N,N-dimethylformamide, silver nitrate solution, hydrazine hydrate and ethanol is 2-5g:100mL:100mL:40-70mL:200mL.

5. The antibacterial perspiration-wicking fabric according to claim 1, characterized in that: In step A3, the usage ratio of lignin fiber, N,N-dimethylformamide, 3-bromopropyltrimethoxysilane and sodium hydroxide is 2-3 g:100 mL:1.5-3.5 g:2-4 g.

6. The antibacterial perspiration-wicking fabric according to claim 1, characterized in that: In step A4, the usage ratio of molybdenum disulfide@silver nanomaterial, N,N-dimethylformamide, γ-mercaptopropyltrimethoxysilane, mixed solution, modified lignin and methyltrimethoxysilane is 2-3g:50mL:0.5-2mL:100mL:1.5-3.5g:2-3mL.

7. The antibacterial perspiration-wicking fabric according to claim 1, characterized in that: The hydrophilic antibacterial fiber is prepared by the following steps: Step B1, ultrasonically treating the cotton fiber in an ethanol solution for 0.5-1.5h, filtering, drying, and then soaking in a 0.5-1mol / L sodium hydroxide solution for 8-12h, filtering, washing, and drying to obtain pretreated cotton fiber, wherein the mass ratio of the cotton fiber, the ethanol solution, and the sodium hydroxide solution is 1:10:20, and the ethanol solution is prepared by mixing ethanol and deionized water in a mass ratio of 5-7:3-5; Step B2, the pre-treated cotton fiber and polyethylene glycol are mixed and stirred evenly in methanol, and then 3-5wt% glutaraldehyde solution is added, and the temperature is raised to 40-50 ° C, and the reaction is stirred for 3-5h, filtered, washed, and dried, and then redispersed in a 3-5g / L composite antibacterial agent solution and immersed 3-5 times, each time for 15-25min, and dried to obtain hydrophilic antibacterial fiber. The amount ratio of pre-treated cotton fiber, polyethylene glycol, methanol, glutaraldehyde solution, and composite antibacterial agent solution is 10g: 1-3g: 100mL: 10mL: 100mL.

8. A method for preparing the antibacterial perspiration-wicking fabric according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step S1, weighing raw materials by weight, mixing polyethylene terephthalate, composite antibacterial agent and antioxidant for 30 minutes, transferring to a twin-screw extruder for extrusion, granulation, drying, and melt spinning to obtain hydrophobic antibacterial fiber; then using antibacterial cotton fiber as warp and hydrophobic antibacterial fiber as weft to obtain an inner layer through warp weaving; Step S2, using the hydrophilic antibacterial fiber as the warp and weft to weave to obtain an outer layer; Step S3, connecting the inner layer and the outer layer by a knot to obtain the antibacterial and perspiration-wicking fabric.

9. The method for preparing an antibacterial perspiration-wicking fabric according to claim 8, characterized in that: In step S1 and step S2, the warp density is 75-80 strands / cm, and the weft density is 52-56 strands / cm.

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