Antibacterial perspiration fabric and preparation method thereof

Abstract

The invention relates to the technical field of textile fabrics, and discloses an antibacterial and sweat-releasing fabric and a preparation method thereof. The antibacterial perspiration fabric is composed of an inner layer and an outer layer, and the inner layer and the outer layer are connected through binding warps; the inner layer is formed by weaving antibacterial cotton fibers serving as warps and hydrophobic antibacterial fibers serving as wefts, and the outer layer is formed by interweaving hydrophilic antibacterial fibers serving as warps and wefts; wherein the inner layer has certain hydrophobicity and antibacterial property, the outer layer has certain hydrophilicity and antibacterial property, the inner layer and the outer layer of the fabric formed after the inner layer and the outer layer are connected have different hygroscopicity, the inner layer fabric is hydrophobic, the outer layer fabric is hydrophilic, sweat is adsorbed to the outer surface layer of the fabric and rapidly volatilized under the action of the differential capillary effect, and the moisture absorption performance of the fabric is improved. Therefore, the fabric is endowed with excellent perspiration performance.

Description

Technical Field

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

[0002] With the improvement of living standards, people have higher and higher requirements for wearing comfort, and the technological content of clothing fabrics is also gradually improving. People not only pursue appearance, but also hope to get the most thoughtful protection, especially in the hot summer and when exercising, they hope that the fabric can absorb moisture and perspiration to avoid sweating and the discomfort of hot and cold. Existing fabrics have poor moisture absorption and perspiration performance. Especially in the case of heavy sweating, traditional fabrics such as cotton fibers will absorb a lot of sweat and become wet and heavy, adhere to the skin, causing the wearer to feel stuffy and uncomfortable. At the same time, the human body is prone to produce odor and bacterial growth after sweating, which affects people's health.

[0003] Therefore, based on the shortcomings of traditional fabrics, such as poor antibacterial properties and poor moisture absorption and perspiration management, it is very necessary to develop a fabric with good moisture absorption and perspiration management as a raw material for clothing, which has broad market prospects. Summary of the invention

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

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

[0006] An antibacterial perspiration fabric comprises an inner layer and an outer layer, wherein the inner layer and the outer layer are connected by a binding warp;

[0007] The inner layer is woven from warp and weft; the warp is antibacterial cotton fiber, and the weft is hydrophobic antibacterial fiber; the antibacterial cotton fiber is prepared by dipping 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 woven from hydrophilic antibacterial fibers;

[0008] Furthermore, the antibacterial cotton fiber is prepared by the following steps: 10 g of cotton fiber is immersed in 50 mL, 3-5 g / L composite antibacterial agent solution for 2-6 times, each time for 10-40 min, and dried to obtain the antibacterial cotton fiber;

[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, 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;

[0012] 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;

[0013] 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;

[0014] Step A4, under nitrogen conditions, dispersing molybdenum disulfide@silver nanomaterials in N,N-dimethylformamide, adding γ-mercaptopropyltrimethoxysilane and ultrasonically stirring to react for 12-24 hours, washing, filtering, collecting the product, and redispersing it in a mixed solution of ethanol and deionized water (the volume ratio of ethanol to deionized water is 9:1), then adding modified lignin and methyltrimethoxysilane and stirring to react for 8-12 hours, filtering, washing, and drying to obtain a composite antibacterial agent;

[0015] Further, 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;

[0016] Further, in step A2, the ratio of the pre-treated 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] Further, 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;

[0018] Furthermore, 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.

[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 perspiration-wicking fabric of the present invention is composed of an inner layer and an outer layer, and the inner layer and the outer layer are connected by a binding warp; 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 certain hydrophobicity and antibacterial properties, and the outer layer has certain hydrophilicity and antibacterial properties, and the inner and outer layers of the fabric made by connecting the inner and outer layers have different hygroscopicity, the inner layer fabric is hydrophobic, and the outer layer fabric is hydrophilic, and sweat is adsorbed to the outer surface of the fabric and evaporates rapidly under the action of the differential capillary effect, thereby giving the fabric excellent perspiration-wicking properties.

[0031] In the composite antibacterial agent, firstly, mercaptoethylamine is used to modify the interlayer and surface of molybdenum disulfide to obtain pre-treated molybdenum disulfide; then, silver nitrate is used to provide silver ions, and silver ions are chelated on the surface and interlayer of the pre-treated molybdenum disulfide, and hydrazine hydrate is used as a reducing agent to reduce the silver ions in the molybdenum disulfide to silver, so as to obtain molybdenum disulfide@silver nanomaterials; then, 3-bromopropyltrimethoxysilane is used to react with the active groups in the lignin fiber to obtain modified lignin; finally, γ-mercaptopropyltrimethoxysilane is used to react with the molybdenum disulfide@silver nanomaterial, and then the 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 properties of the fiber material; among them, molybdenum disulfide uses its large specific surface area to adsorb and kill bacteria, and can also produce free radicals and peroxides, which can destroy bacterial cell membranes and DNA structures, thereby killing bacteria; silver itself has excellent antibacterial properties, and loading it on molybdenum disulfide can further improve the antibacterial properties of the fiber material; lignin, as an organic polymer, not only has antibacterial properties, but also can use its active groups to hydrogen bond with the fiber, thereby firmly adsorbing the composite antibacterial agent on the fiber surface; in addition, the siloxane in the composite antibacterial agent can also form silanol bonds through hydrolysis and condensation, and the silanol bonds can chemically bond with the hydroxyl groups on the fiber surface, thereby firmly fixing them on the fiber surface, giving the fiber a long-lasting antibacterial effect.

[0032] In the hydrophilic antibacterial fiber, the cotton fiber is first activated by an ethanol solution and an alkaline solution, and then polyethylene glycol is grafted onto the cotton fiber using glutaraldehyde as a grafting intermediate, and finally the grafted modified cotton fiber is immersed in a composite antibacterial agent solution for antibacterial treatment to obtain the hydrophilic antibacterial fiber. The hydrophilic antibacterial fiber is based on cotton fiber in a matrix, which is activated to expose more active hydroxyl groups on its surface, and then polyethylene glycol with excellent hydrophilic properties is grafted onto its surface to improve the hydrophilicity of the cotton fiber. Finally, the silanol bond in the composite antibacterial agent reacts with the hydroxyl groups on the surface of the cotton fiber to give the cotton fiber certain antibacterial properties. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. 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.

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

[0035] Step A1, stirring 1 g of molybdenum disulfide nanosheets in 50 mL of deionized water for 5 min, ultrasonicating for 2 h, adding 10 mL of mercaptoethylamine solution, continuing ultrasonic dispersion for 24 h, washing, and freeze-drying to obtain pre-treated molybdenum disulfide, wherein the mercaptoethylamine solution is prepared by mixing mercaptoethylamine and deionized water in a dosage ratio of 0.7 g:10 mL;

[0036] Step A2, 2g of pre-treated molybdenum disulfide was stirred evenly in 100mL of N,N-dimethylformamide, 100mL of 0.05mol / L silver nitrate solution was slowly added, and the pH was adjusted to 10, and then 40mL of 80wt% hydrazine hydrate was added, and the temperature was raised to 35°C and stirred for 30min, and then filtered and washed, and then transferred to 200mL of ethanol and soaked for 2h, filtered and dried to obtain molybdenum disulfide@silver nanomaterial;

[0037] Step A3, under nitrogen conditions, disperse 2 g of lignin fiber in 100 mL of N,N-dimethylformamide, add 1.5 g of 3-bromopropyltrimethoxysilane and 2 g of sodium hydroxide, stir and react at room temperature for 12 h, centrifuge, wash, and dry to obtain modified lignin;

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

[0039] The antibacterial cotton fiber is prepared by the following steps: 10 g of cotton fiber is immersed in 50 mL of 3 g / L composite antibacterial agent solution for 2 times, each time for 10 minutes, and then dried to obtain the antibacterial cotton fiber.

[0040] The hydrophilic antibacterial fiber is prepared by the following steps:

[0041] Step B1, ultrasonically treating 10 g of cotton fiber in 100 g of ethanol solution for 0.5 h, filtering, drying, and then soaking in 200 g of 0.5 mol / L sodium hydroxide solution for 8 h, filtering, washing, and drying to obtain pretreated cotton fiber, wherein the ethanol solution is a mixture of ethanol and deionized water in a mass ratio of 5:5;

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

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

[0044] Step A1, stirring 1.5 g of molybdenum disulfide nanosheets in 50 mL of deionized water for 10 min, ultrasonicating for 2.5 h, adding 10 mL of mercaptoethylamine solution, continuing ultrasonic dispersion for 36 h, washing, and freeze-drying to obtain pre-treated molybdenum disulfide, wherein the mercaptoethylamine solution is prepared by mixing mercaptoethylamine and deionized water in a dosage ratio of 1.4 g: 10 mL;

[0045] Step A2, 3.5g of pre-treated molybdenum disulfide was stirred evenly in 100mL of N,N-dimethylformamide, 100mL of 0.1mol / L silver nitrate solution was slowly added, and the pH was adjusted to 10.5, and then 55mL of 80wt% hydrazine hydrate was added, the temperature was raised to 40°C and stirred for reaction for 40min, filtered and washed, and then transferred to 200mL of ethanol and soaked for 2.5h, filtered and dried to obtain molybdenum disulfide@silver nanomaterial;

[0046] Step A3, under nitrogen conditions, disperse 2.5 g of lignin fiber 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 2.5g of molybdenum disulfide@silver nanomaterial in 50mL of N,N-dimethylformamide, add 1mL of γ-mercaptopropyltrimethoxysilane and ultrasonically stir to react for 18h, wash, filter, collect the product, and redisperse it in a mixture of 100mL of ethanol and deionized water (the volume ratio of ethanol to deionized water is 9:1), then add 2.5g of modified lignin and 2.5mL of methyltrimethoxysilane and stir to react for 10h, filter, wash and dry to obtain a composite antibacterial agent.

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

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

[0050] Step B1, ultrasonically treating 10 g of cotton fiber in 100 g of ethanol solution for 1 h, filtering, drying, and then soaking in 200 g of 0.7 mol / L sodium hydroxide solution for 10 h, filtering, washing, and drying to obtain pretreated cotton fiber, wherein the ethanol solution is a mixture of ethanol and deionized water in a mass ratio of 6:4;

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

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

[0053] Step A1, stirring 2 g of molybdenum disulfide nanosheets in 50 mL of deionized water for 15 min, ultrasonicating for 3 h, adding 10 mL of mercaptoethylamine solution, continuing ultrasonic dispersion for 48 h, washing, and freeze-drying to obtain pre-treated molybdenum disulfide, wherein the mercaptoethylamine solution is prepared by mixing mercaptoethylamine and deionized water in a dosage ratio of 2 g: 10 mL;

[0054] Step A2, 5g of pre-treated molybdenum disulfide was stirred evenly in 100mL of N,N-dimethylformamide, 100mL of 0.2mol / L silver nitrate solution was slowly added, and the pH was adjusted to 11, and then 70mL of 80wt% hydrazine hydrate was added, the temperature was raised to 45°C and stirred for reaction for 50min, filtered and washed, and then transferred to 200mL of ethanol and soaked for 3h, filtered and dried to obtain 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 to obtain modified lignin;

[0056] Step A4, under nitrogen conditions, disperse 3g of molybdenum disulfide@silver nanomaterial in 50mL of N,N-dimethylformamide, add 2mL of γ-mercaptopropyltrimethoxysilane and ultrasonically stir to react for 24h, wash, filter, collect the product, and redisperse it in a mixture of 100mL of ethanol and deionized water (the volume ratio of ethanol to deionized water is 9:1), then add 3.5g of modified lignin and 3mL of methyltrimethoxysilane and stir to react for 12h, filter, wash and dry to obtain a composite antibacterial agent.

[0057] The antibacterial cotton fiber is prepared by the following steps: 10 g of cotton fiber is immersed in 50 mL, 5 g / L composite antibacterial agent solution for 6 times, each time for 40 minutes, and then dried to obtain the antibacterial cotton fiber.

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

[0059] Step B1, ultrasonically treating 10 g of cotton fiber in 100 g of ethanol solution for 1.5 h, filtering, drying, and then soaking in 200 g of 1 mol / L sodium hydroxide solution for 12 h, filtering, washing, and drying to obtain pretreated cotton fiber, wherein the ethanol solution is a mixture of ethanol and deionized water in a mass ratio of 7:3;

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

[0061] Embodiment 4: A method for preparing an antibacterial perspiration-wicking fabric comprises the following steps:

[0062] Step S1, weighing raw materials by weight, mixing 80 parts of polyethylene terephthalate, 7 parts of the composite antibacterial agent prepared in Example 1 and 2 parts of antioxidant 164, stirring for 30 minutes, transferring to a twin-screw extruder for extrusion, granulation, drying, and melt spinning to obtain a hydrophobic antibacterial fiber; then using the antibacterial cotton fiber prepared in Example 1 as the warp and the hydrophobic antibacterial fiber as the weft, weaving to obtain an inner layer, the warp density is 75 strands / cm, and the weft density is 52 strands / cm;

[0063] Step S2, using the hydrophilic antibacterial fiber prepared in Example 1 as warp and weft to weave an outer layer, with a warp density of 75 strands / cm and a weft density of 52 strands / cm;

[0064] Step S3, connecting the inner layer and the outer layer by a knot to obtain the antibacterial and perspiration-wicking fabric.

[0065] Embodiment 5: A method for preparing an antibacterial perspiration-wicking fabric comprises the following steps:

[0066] Step S1, weighing raw materials by weight, mixing 90 parts of polyethylene terephthalate, 10 parts of the composite antibacterial agent prepared in Example 2 and 3.5 parts of antioxidant 1010 for 30 minutes, transferring to a twin-screw extruder for extrusion, granulation, drying, and melt spinning to obtain a hydrophobic antibacterial fiber; then using the antibacterial cotton fiber prepared in Example 2 as the warp and the hydrophobic antibacterial fiber as the weft, weaving to obtain an inner layer, the warp density is 77 strands / cm, and the weft density is 54 strands / cm;

[0067] Step S2, using the hydrophilic antibacterial fiber prepared in Example 2 as warp and weft to weave an outer layer, with a warp density of 77 strands / cm and a weft density of 54 strands / cm;

[0068] Step S3, connecting the inner layer and the outer layer by a knot to obtain the antibacterial and perspiration-wicking fabric.

[0069] Embodiment 6: A method for preparing an antibacterial perspiration-wicking fabric comprises the following steps:

[0070] Step S1, weighing raw materials by weight, mixing 100 parts of polyethylene terephthalate, 13 parts of the composite antibacterial agent prepared in Example 3 and 5 parts of antioxidant 1010 for 30 minutes, transferring to a twin-screw extruder for extrusion, granulation, drying, and melt spinning to obtain a hydrophobic antibacterial fiber; then using the antibacterial cotton fiber prepared in Example 3 as the warp and the hydrophobic antibacterial fiber as the weft, weaving to obtain an inner layer, the warp density is 80 strands / cm, and the weft density is 56 strands / cm;

[0071] Step S2, using the hydrophilic antibacterial fiber prepared in Example 3 as warp and weft to weave an outer layer, with a warp density of 80 strands / cm and a weft density of 56 strands / cm;

[0072] Step S3, connecting the inner layer and the outer layer by a knot to obtain the antibacterial and perspiration-wicking fabric.

[0073] Comparative Example 1: This comparative example is a fabric, which differs from Example 6 in that the antibacterial agent DXN-HF30 is used instead of the composite antibacterial agent prepared in Example 3, and the rest are the same.

[0074] Comparative Example 2: This comparative example is a fabric, which is different from Example 6 in that it is prepared by the following steps:

[0075] Step S1, using the antibacterial cotton fiber prepared in Example 3 as warp and weft, weaving to obtain an inner layer, with a warp density of 80 strands / cm and a weft density of 56 strands / cm;

[0076] Step S2, using the hydrophilic antibacterial fiber prepared in Example 3 as warp and weft to weave an outer layer, with a warp density of 80 strands / cm and a weft density of 56 strands / cm;

[0077] Step S3, connecting the inner layer and the outer layer by a knot to obtain the antibacterial and perspiration-wicking fabric.

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

[0079] Step S1, weighing raw materials by weight, mixing 100 parts of polyethylene terephthalate, 13 parts of the composite antibacterial agent prepared in Example 3 and 5 parts of antioxidant 1010 for 30 minutes, transferring to a twin-screw extruder for extrusion, granulation, drying, and melt spinning to obtain a hydrophobic antibacterial fiber; then using the antibacterial cotton fiber prepared in Example 3 as the warp and the hydrophobic antibacterial fiber as the weft, weaving to obtain an inner layer, the warp density is 80 strands / cm, and the weft density is 56 strands / cm;

[0080] Step S2, using the antibacterial cotton fibers prepared in Example 3 as warp and weft threads, weaving to obtain an outer layer, with a warp thread density of 80 threads / cm and a weft thread density of 56 threads / cm;

[0081] Step S3, connecting the inner layer and the outer layer by a knot to obtain the antibacterial and perspiration-wicking fabric.

[0082] The fabrics prepared in Examples 4-6 and Comparative Examples 1-3 were subjected to performance tests:

[0083] Perspiration 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 10cm×10cm samples from different positions of the fabrics prepared in the examples and comparative examples, and perform humidity conditioning on the cut samples. Condition the samples for 24 hours under standard atmospheric pressure, 20°C, and relative humidity of 64%. Weigh the samples after humidity conditioning to obtain the dry weight of the samples. Then use a pipette to absorb 0.2g of water, drip the water vertically on the surface of the samples, and weigh the samples immediately after the water drops completely penetrate into the samples to obtain the weight of the samples after wetting. Then hang the fabric vertically in a standard atmospheric pressure environment, weigh the samples every 5 minutes, and obtain the weight of the samples after wetting at that time point. The weight of the samples needs to be accurate to 0.001g. The weight change of the sample weight after two consecutive weighings does not exceed 1%, and then the experiment can be ended.

[0084] Antibacterial performance test: This series of fabrics were tested and analyzed 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:

[0086] Table 1: Performance test results

[0087]

[0088] As can be seen from Table 1, after the sweat-wicking performance and antibacterial performance tests, the quick-drying rate of the fabric prepared by the present invention is in the range of (0.329-0.366) g / h, the antibacterial rate of Escherichia coli is in the range of (99.1-99.5)%, and the antibacterial rate of 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-wicking properties.

[0089] The above contents are merely examples and explanations of the concept of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the scope defined by the concept of the invention, they should all 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 and antioxidant 1010.

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: 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.

4. The antibacterial perspiration-wicking fabric according to claim 3, 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.

5. The antibacterial perspiration-wicking fabric according to claim 3, 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.

6. The antibacterial perspiration-wicking fabric according to claim 3, 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.

7. The antibacterial perspiration-wicking fabric according to claim 3, 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.

8. 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 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.

9. A method for preparing the antibacterial perspiration-wicking fabric according to any one of claims 1 to 8, 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.

10. The method for preparing an antibacterial perspiration-wicking fabric according to claim 9, 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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