Antibacterial moisture-absorbing quick-drying fabric and preparation method thereof

Abstract

The invention provides an antibacterial moisture-absorbing quick-drying fabric and a preparation method thereof, and belongs to the technical field of textiles. The preparation method comprises the following steps: firstly preparing antibacterial cotton fibers and antibacterial polyester fibers, then blending the antibacterial cotton fibers and the antibacterial polyester fibers to obtain antibacterial yarns, and finally weaving the antibacterial yarns as weft yarns and cross-shaped polyester fibers as warp yarns into a plain fabric to obtain the antibacterial moisture-absorbing quick-drying fabric. A biological antibacterial solution is adopted to modify cotton fibers, so that the antibacterial performance of the cotton fibers is improved; zeolite nanoparticles containing titanium dioxide and an antibacterial agent of polyhexamethylene biguanide hydrochloride are mixed with polyester for spinning, and the polyester fiber with the antibacterial performance is obtained. The polyester fiber provided by the invention has a cross-shaped or Y-shaped special-shaped structure, so that the quick-drying performance of the fabric can be improved. In the antibacterial modification process, titanium dioxide zeolite nanoparticles, a silane coupling agent and absolute ethyl alcohol are mixed, so that the polyester fiber is endowed with excellent moisture absorption and quick drying effects.

Description

Technical Field

[0001] The present invention relates to the field of textile technology, in particular to an antibacterial, moisture-absorbing and quick-drying fabric and a preparation method thereof. Background Art

[0002] Common clothing fabrics include cotton and polyester. Cotton is breathable, soft, comfortable, and hypoallergenic, offering excellent breathability and warmth retention. However, cotton is prone to wrinkling, shrinking, and deformation. Polyester, on the other hand, offers high strength, elasticity, and good abrasion resistance, but it has poor moisture absorption.

[0003] In daily life, people often get their clothes soaked after sweating during exercise, which makes people feel unsightly, especially in hot and humid summer. Especially after a lot of exercise, the human body will quickly get soaked in clothes and cannot dry quickly. They stick to the body and are very uncomfortable. Wearing them for a long time can also easily breed bacteria.

[0004] Under these environmental conditions, cross-polyester fiber emerged. The cross-section of cross-polyester fiber is a simulated cross shape, which can improve the fiber's gloss effect. At the same time, cross-polyester fiber has four grooves, which use a moisture-conducting structure to achieve a drainage effect. It can quickly absorb moisture and sweat from the skin's surface and drain them to the outer layer for evaporation, keeping the body dry and comfortable, and regulating body temperature. It is also absorbent, breathable, quick-drying, non-sticky, easy to get wet, and easy to handle. However, due to the regular macromolecular chain of polyester fiber, the lack of hydrophilic groups, and smooth fiber surface, the fabric's ability to pass high-heat sweat excreted from the skin, that is, moisture permeability, is poor, and static electricity easily accumulates on the fiber, causing pilling.

[0005] Chinese patent document CN114474890A discloses a moisture-absorbing and quick-drying fabric and its preparation method. Ula grass fiber is blended with cotton fiber to obtain a blended yarn, which is then woven to obtain a hydrophilic inner layer; shaped polyester fiber is blended with cotton fiber and shaped polyester fiber to obtain a composite yarn, which is then woven into an outer layer through warp and weft weaving; the outer layer is dipped in a moisture-absorbing and quick-drying finishing liquid, and then dipped and rolled twice to obtain a pretreated outer layer; the hydrophilic inner layer, the middle layer, and the pretreated outer layer are bonded together, and then dried and baked to obtain the moisture-absorbing and quick-drying fabric. Although this invention obtains a moisture-absorbing and quick-drying fabric through blending, its preparation method is complex and needs to be improved.

[0006] Chinese patent CN111172651A discloses a method for preparing a moisture-absorbing, quick-drying double-layer knitted fabric. The method involves weaving a double-layer knitted fabric with a moisture-conducting inner layer and a moisture-absorbing outer layer. The inner layer is then subjected to a lightly discontinuous hydrophilic finish and the outer layer is subjected to a lightly discontinuous hydrophobic finish to produce the moisture-absorbing, quick-drying double-layer knitted fabric. The lightly discontinuous hydrophilic finish involves applying a hydrophilic finish to a localized area of ​​the inner layer, making it less hydrophilic than the hydrophilic areas of the outer layer. The lightly discontinuous hydrophobic finish involves applying a hydrophobic finish to a localized area of ​​the outer layer, making it less hydrophobic than the hydrophobic areas of the inner layer. However, the fabric's moisture-absorbing and quick-drying properties are poor. Summary of the Invention

[0007] In view of this, the purpose of the present invention is to provide a method for preparing an antibacterial, moisture-absorbing and quick-drying fabric to solve the problem that traditional fabrics have general moisture absorption and perspiration performance and poor antibacterial effect.

[0008] The method for preparing the antibacterial, moisture-absorbing, quick-drying fabric of the present invention comprises the following steps:

[0009] (1) The cotton fiber is immersed in a NaOH solution for alkaline treatment, then washed with water until neutral, dried, and then immersed in an aqueous solution containing acrylic acid and an initiator for grafting reaction, so that carboxyl groups are grafted on the surface of the cotton fiber;

[0010] (2) soaking the cotton fiber in a biological antibacterial solution, then washing it with water until it is neutral, and drying it to obtain the antibacterial cotton fiber;

[0011] (3) mixing titanium dioxide zeolite nanoparticles, a silane coupling agent, and anhydrous ethanol, then adding polyhexamethylene biguanide hydrochloride, and mixing uniformly to obtain a composite antibacterial agent;

[0012] (4) mixing the composite antibacterial agent with polyester chips, and then melt-spinning to obtain antibacterial polyester fibers;

[0013] (5) blending antibacterial cotton fiber and antibacterial polyester fiber to obtain antibacterial yarn;

[0014] (6) The antibacterial yarn is used as weft yarn and the cross polyester fiber is used as warp yarn to weave a plain fabric to obtain the antibacterial moisture-absorbing quick-drying fabric.

[0015] Preferably, the mass concentration of the NaOH solution in step (1) is 3-5%, the temperature of the alkali treatment is 65-70° C., and the treatment time is 20-30 min.

[0016] Preferably, the initiator in step (1) is potassium persulfate; in the aqueous solution containing acrylic acid and the initiator, the mass concentration of acrylic acid is 5-8%, and the mass concentration of potassium persulfate is 0.3-0.5%; the temperature of the grafting reaction is 50-60°C, and the time is 1-2h.

[0017] Preferably, the biological antibacterial solution in step (2) comprises the following raw materials in mass percentage: lysozyme 0.5-1.5%, chitosan 1.0-2.5%, citric acid 3.0-5.0%, potassium persulfate 0.05-0.1%, and tea polyphenols 1.0-3.0%.

[0018] Preferably, the specific method of the impregnation in step (2) is: adding acetic acid to the biological antibacterial solution until the pH is 5.0-5.5, and then impregnating the cotton fiber therein according to a bath ratio of 1:5-10, the impregnation temperature is 20-30°C, and the impregnation time is 1-5h.

[0019] Preferably, the mass ratio of titanium dioxide zeolite nanoparticles, silane coupling agent, anhydrous ethanol and polyhexamethylene biguanide hydrochloride in the composite antibacterial agent of step (3) is 2-5:5-10:15-20:2-5.

[0020] Preferably, the mass ratio of the composite antibacterial agent to the polyester chips in step (4) is 1-5:90-100.

[0021] Preferably, the temperature of the melt spinning in step (4) is 270-280° C., and the cross-section of the spun fiber is cross-shaped or Y-shaped.

[0022] Preferably, the mass ratio of the antibacterial cotton fiber to the antibacterial polyester fiber in step (5) is 5-6:4-5.

[0023] Another object of the present invention is to provide an antibacterial, moisture-absorbing, quick-drying fabric prepared by the above method.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention provides an antibacterial, moisture-absorbing, and quick-drying fabric and a preparation method thereof. First, carboxyl groups are grafted onto the surface of cotton fibers to enhance their hygroscopicity and increase the anchoring sites for the antibacterial agent. The cotton fibers are then further modified with a biological antibacterial solution to enhance their antibacterial properties. An antibacterial agent comprising titanium dioxide zeolite nanoparticles and polyhexamethylene biguanide hydrochloride is then mixed with polyester for spinning to yield a polyester fiber having antibacterial properties. The polyester fiber of the present invention has a cross-shaped or Y-shaped structure, which can enhance the quick-drying properties of the fabric. Furthermore, during the antibacterial modification process of the present invention, titanium dioxide zeolite nanoparticles, a silane coupling agent, and anhydrous ethanol are mixed to impart excellent moisture-absorbing and quick-drying properties to the polyester fiber. DETAILED DESCRIPTION

[0026] The present invention provides a method for preparing an antibacterial, moisture-absorbing, quick-drying fabric, comprising the following steps:

[0027] (1) according to bath ratio 1:5-10, cotton fibers are immersed in a 3-5% NaOH solution by mass concentration, alkali treatment is carried out at 65-70℃ for 20-30min, then washed to neutral, dried, and then immersed in a solution with a mass concentration of 5-8% acrylic acid and 0.3-0.5% potassium persulfate according to bath ratio 1:5-8, grafted reaction is carried out at 50-60℃ for 1-2h, and the surface of the cotton fibers is grafted with carboxyl groups;

[0028] (2) add acetic acid dropwise to the biological antibacterial solution until the pH is 5.0-5.5, then immerse the cotton fibers in it according to bath ratio 1:5-10, the immersion temperature is 20-30℃, and the immersion time is 1-5h, then wash to neutral, dry, and obtain antibacterial cotton fibers; the biological antibacterial solution comprises the following raw materials by mass percentage: lysozyme 0.5-1.5%, chitosan 1.0-2.5%, citric acid 3.0-5.0%, potassium persulfate 0.05-0.1%, and tea polyphenol 1.0-3.0%;

[0029] (3) mix titanium dioxide zeolite nanoparticles, silane coupling agent and anhydrous ethanol, then add polyhexamethylene biguanide hydrochloride, and mix uniformly to obtain a composite antibacterial agent; the mass ratio of titanium dioxide zeolite nanoparticles, silane coupling agent, anhydrous ethanol and polyhexamethylene biguanide hydrochloride in the composite antibacterial agent is 2-5:5-10:15-20:2-5;

[0030] (4) mix the composite antibacterial agent and polyester chips according to a mass ratio of 1-5:90-100, then melt spinning is carried out at 270-280℃ to obtain antibacterial polyester fibers with a cross-shaped or Y-shaped cross section;

[0031] (5) mix the antibacterial cotton fibers and the antibacterial polyester fibers according to a mass ratio of 5-6:4-5 to obtain antibacterial yarns;

[0032] (6) use the antibacterial yarns as weft yarns and the cross-shaped polyester fibers as warp yarns to weave into plain fabrics, and obtain the antibacterial moisture-absorbing and quick-drying fabrics. In specific embodiments of the present application, the weft yarns have a yarn count of 60s, and the warp yarns have a yarn count of 60s; the warp density is 420 yarns / 10cm, and the weft density is 310 yarns / 10cm.

[0033] In a specific embodiment of the present invention, the titanium dioxide zeolite nanoparticles are prepared by: adjusting the pH of an anhydrous ethanol solution of zinc oxide to 2 using nitric acid, then adding an anhydrous ethanol solution of tetrabutyl titanate dropwise with stirring, and stirring at room temperature for 12 hours for hydrolysis to obtain a doped titanium dioxide sol; immersing a zeolite carrier in the doped titanium dioxide sol for 60 minutes, and then drying at 120°C for 12 hours to obtain a xerogel; and calcining the obtained xerogel at 500°C for 3 hours to obtain titanium dioxide zeolite nanoparticles. The titanium dioxide zeolite nanoparticles used in the present invention contain zinc and titanium dioxide, both of which have excellent antibacterial properties. They are also mixed with polyhexamethylene biguanide hydrochloride to achieve dual antibacterial properties; and then mixed with polyester chips for spinning to form a polyhexamethylene biguanide hydrochloride polymer layer grafted onto the polyester surface and titanium dioxide zeolite embedded sites, thereby improving both the antibacterial properties and the quick-drying properties of the fabric.

[0034] The present invention will be further described below with reference to the embodiments.

[0035] Example 1

[0036] A method for preparing an antibacterial, moisture-absorbing, quick-drying fabric comprises the following steps:

[0037] (1) The cotton fiber was immersed in a 3% NaOH solution at a bath ratio of 1:5, and subjected to an alkali treatment at 70°C for 25 minutes. The cotton fiber was then washed with water until neutral and dried. The cotton fiber was then immersed in a solution of 7% acrylic acid and 0.5% potassium persulfate at a bath ratio of 1:7, and the grafting reaction was carried out at 55°C for 2 hours to graft carboxyl groups onto the surface of the cotton fiber.

[0038] (2) adding acetic acid dropwise to a biological antibacterial solution until the pH value reaches 5.4, and then immersing cotton fibers therein at a bath ratio of 1:8, wherein the immersion temperature is 25° C. and the immersion time is 4 seconds, and then washing with water until the solution is neutral and drying to obtain antibacterial cotton fibers; the biological antibacterial solution comprises the following raw materials in percentage by weight: lysozyme 1.0%, chitosan 1.8%, citric acid 3.7%, potassium persulfate 0.09%, and tea polyphenols 2.0%;

[0039] (3) mixing titanium dioxide zeolite nanoparticles, a silane coupling agent, and anhydrous ethanol, then adding polyhexamethylene biguanide hydrochloride, and mixing uniformly to obtain a composite antibacterial agent; the mass ratio of titanium dioxide zeolite nanoparticles, silane coupling agent, anhydrous ethanol, and polyhexamethylene biguanide hydrochloride in the composite antibacterial agent is 3:8:18:4;

[0040] (4) mixing the composite antibacterial agent with polyester chips in a mass ratio of 5:90, and then melt-spinning at 275° C. to obtain an antibacterial polyester fiber with a cross-shaped cross section;

[0041] (5) blending antibacterial cotton fiber and antibacterial polyester fiber in a mass ratio of 6:4 to obtain antibacterial yarn;

[0042] (6) The antibacterial yarn is used as weft yarn and the cross polyester fiber is used as warp yarn to weave a plain fabric to obtain the antibacterial moisture-absorbing quick-drying fabric.

[0043] Example 2

[0044] A method for preparing an antibacterial, moisture-absorbing, quick-drying fabric comprises the following steps:

[0045] (1) The cotton fiber was immersed in a 4% NaOH solution at a bath ratio of 1:10, and alkali-treated at 65°C for 20 minutes, then washed with water until neutral, dried, and then immersed in a solution of 7% acrylic acid and 0.5% potassium persulfate at a bath ratio of 1:5, and grafted at 55°C for 1.5 hours to graft carboxyl groups on the cotton fiber surface;

[0046] (2) adding acetic acid dropwise to a biological antibacterial solution until the pH reaches 5.3, and then immersing cotton fibers therein at a bath ratio of 1:7, the immersion temperature being 25° C. and the immersion time being 4 h, and then washing with water until neutral, and drying to obtain antibacterial cotton fibers; the biological antibacterial solution comprising the following raw materials in percentage by mass: 0.7% lysozyme, 2.1% chitosan, 4.1% citric acid, 0.07% potassium persulfate, and 2.3% tea polyphenols;

[0047] (3) mixing titanium dioxide zeolite nanoparticles, a silane coupling agent, and anhydrous ethanol, then adding polyhexamethylene biguanide hydrochloride, and mixing uniformly to obtain a composite antibacterial agent; the mass ratio of titanium dioxide zeolite nanoparticles, silane coupling agent, anhydrous ethanol, and polyhexamethylene biguanide hydrochloride in the composite antibacterial agent is 4:8:17:5;

[0048] (4) mixing the composite antibacterial agent with polyester chips in a mass ratio of 5:90, and then melt-spinning at 275° C. to obtain an antibacterial polyester fiber with a Y-shaped cross-section;

[0049] (5) blending antibacterial cotton fiber and antibacterial polyester fiber in a mass ratio of 6:4 to obtain antibacterial yarn;

[0050] (6) The antibacterial yarn is used as weft yarn and the cross polyester fiber is used as warp yarn to weave a plain fabric to obtain the antibacterial moisture-absorbing quick-drying fabric.

[0051] Example 3

[0052] A method for preparing an antibacterial, moisture-absorbing, quick-drying fabric comprises the following steps:

[0053] (1) The cotton fiber was immersed in a 3% NaOH solution at a bath ratio of 1:5, and alkali-treated at 70°C for 25 minutes, then washed with water until neutral, dried, and then immersed in a solution of 5-8% acrylic acid and 0.5% potassium persulfate at a bath ratio of 1:6, and grafted at 5°C for 1.5 hours to graft carboxyl groups on the cotton fiber surface;

[0054] (2) adding acetic acid dropwise to a biological antibacterial solution until the pH reaches 5.2, and then immersing cotton fibers therein at a bath ratio of 1:10, wherein the immersion temperature is 25° C. and the immersion time is 1.5 h, and then washing with water until neutrality is achieved, and drying to obtain antibacterial cotton fibers; the biological antibacterial solution comprises the following raw materials in percentage by weight: 0.7% lysozyme, 2.5% chitosan, 5.0% citric acid, 0.06% potassium persulfate, and 2.2% tea polyphenols;

[0055] (3) mixing titanium dioxide zeolite nanoparticles, a silane coupling agent, and anhydrous ethanol, then adding polyhexamethylene biguanide hydrochloride, and mixing uniformly to obtain a composite antibacterial agent; the mass ratio of titanium dioxide zeolite nanoparticles, silane coupling agent, anhydrous ethanol, and polyhexamethylene biguanide hydrochloride in the composite antibacterial agent is 5:10:15:2;

[0056] (4) mixing the composite antibacterial agent with polyester chips in a mass ratio of 5:90, and then melt-spinning at 280° C. to obtain an antibacterial polyester fiber with a cross-shaped cross section;

[0057] (5) blending antibacterial cotton fiber and antibacterial polyester fiber in a mass ratio of 6:4 to obtain antibacterial yarn;

[0058] (6) The antibacterial yarn is used as weft yarn and the cross polyester fiber is used as warp yarn to weave a plain fabric to obtain the antibacterial moisture-absorbing quick-drying fabric.

[0059] Comparative Example 1

[0060] The preparation method of an antibacterial, moisture-absorbing, quick-drying fabric is the same as that of Example 1, except that the cotton fiber of Comparative Example 1 is not subjected to surface grafting carboxyl treatment.

[0061] Comparative Example 2

[0062] The preparation method of an antibacterial, moisture-absorbing, quick-drying fabric is the same as that of Example 1, except that the cotton fiber of Comparative Example 2 is not treated with a biological antibacterial solution.

[0063] Comparative Example 3

[0064] The preparation method of an antibacterial, moisture-absorbing, quick-drying fabric is the same as that of Example 1, except that the cross-section of the polyester fiber in Comparative Example 3 is circular.

[0065] Comparative Example 4

[0066] The preparation method of an antibacterial, moisture-absorbing, quick-drying fabric is the same as that of Example 1, except that polyhexamethylene biguanide hydrochloride is not added to the composite antibacterial agent of Comparative Example 4.

[0067] Comparative Example 5

[0068] The preparation method of an antibacterial, moisture-absorbing, quick-drying fabric is the same as that of Example 1, except that titanium dioxide zeolite nanoparticles are not added to the composite antibacterial agent of Comparative Example 5.

[0069] The performance of the antibacterial, moisture-absorbing, quick-drying fabrics prepared in Examples 1-3 and Comparative Examples 1-5 was tested.

[0070] The water absorption rate and drip diffusion time of the fabric were tested according to GB / T21655.1-2008, the wicking height was tested according to FZ / T01071-2008, the evaporation rate was tested according to GB / T21655.1-2008, and the moisture permeability was tested according to GB / T12704.1-2009. The results are shown in Table 1.

[0071] Table 1

[0072]

[0073]

[0074] According to GB / T20944.2-2007, the anti-yellowing property of the fabric after washing once, 20 times, and 100 times, as well as the antibacterial rate of E. coli of the fabric after washing 100 times were tested. The results are shown in Table 2.

[0075] Table 2

[0076]

[0077] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A method for preparing an antibacterial, moisture-absorbing, quick-drying fabric, characterized in that: The following steps are involved: (1) The cotton fiber is immersed in a NaOH solution for alkaline treatment, then washed with water until neutral, dried, and then immersed in an aqueous solution containing acrylic acid and an initiator for grafting reaction, so that carboxyl groups are grafted on the surface of the cotton fiber; (2) soaking the cotton fiber in a biological antibacterial solution, then washing it with water until it is neutral, and drying it to obtain the antibacterial cotton fiber; (3) mixing titanium dioxide zeolite nanoparticles, a silane coupling agent, and anhydrous ethanol, then adding polyhexamethylene biguanide hydrochloride, and mixing uniformly to obtain a composite antibacterial agent; (4) mixing the composite antibacterial agent with polyester chips, and then melt-spinning to obtain antibacterial polyester fibers; (5) blending antibacterial cotton fiber and antibacterial polyester fiber to obtain antibacterial yarn; (6) The antibacterial yarn is used as weft yarn and the cross polyester fiber is used as warp yarn to weave a plain fabric to obtain the antibacterial moisture-absorbing quick-drying fabric.

2. The method for preparing the antibacterial, moisture-absorbing and quick-drying fabric according to claim 1, wherein: The mass concentration of the NaOH solution in step (1) is 3-5%, the temperature of the alkali treatment is 65-70° C., and the treatment time is 20-30 min.

3. The method for preparing the antibacterial, moisture-absorbing and quick-drying fabric according to claim 1, wherein: The initiator in step (1) is potassium persulfate; in the aqueous solution containing acrylic acid and the initiator, the mass concentration of acrylic acid is 5-8%, and the mass concentration of potassium persulfate is 0.3-0.5%; the temperature of the grafting reaction is 50-60° C., and the time is 1-2 hours.

4. The method for preparing the antibacterial, moisture-absorbing and quick-drying fabric according to claim 1, wherein: The biological antibacterial solution in step (2) comprises the following raw materials in mass percentage: 0.5-1.5% of lysozyme, 1.0-2.5% of chitosan, 3.0-5.0% of citric acid, 0.05-0.1% of potassium persulfate, and 1.0-3.0% of tea polyphenols.

5. The method for preparing the antibacterial, moisture-absorbing and quick-drying fabric according to claim 1, characterized in that: The specific method of the impregnation in step (2) is: adding acetic acid to the biological antibacterial solution until the pH is 5.0-5.5, and then impregnating the cotton fiber therein according to a bath ratio of 1:5-10, the impregnation temperature is 20-30° C., and the impregnation time is 1-5 hours.

6. The method for preparing the antibacterial, moisture-absorbing and quick-drying fabric according to claim 1, characterized in that: The mass ratio of titanium dioxide zeolite nanoparticles, silane coupling agent, anhydrous ethanol and polyhexamethylene biguanide hydrochloride in the composite antibacterial agent of step (3) is 2-5:5-10:15-20:2-5.

7. The method for preparing the antibacterial, moisture-absorbing and quick-drying fabric according to claim 1, characterized in that: The mass ratio of the composite antibacterial agent to the polyester chips in step (4) is 1-5:90-100.

8. The method for preparing the antibacterial, moisture-absorbing and quick-drying fabric according to claim 1, characterized in that: The temperature of the melt spinning in step (4) is 270-280° C., and the cross-section of the spun fiber is cross-shaped or Y-shaped.

9. The method for preparing the antibacterial, moisture-absorbing and quick-drying fabric according to claim 1, characterized in that: The mass ratio of the antibacterial cotton fiber to the antibacterial polyester fiber in step (5) is 5-6:4-5.

10. The antibacterial, moisture-absorbing and quick-drying fabric prepared according to the method for preparing the antibacterial, moisture-absorbing and quick-drying fabric according to any one of claims 1 to 9.

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