Antibacterial home textile fabric and preparation method thereof

Abstract

The invention relates to the technical field of home textile fabrics, in particular to an antibacterial home textile fabric and a preparation method thereof. Comprising the following raw materials: 30-50 parts of cotton fibers, 30-50 parts of modified wool fibers, 3-5 parts of antibacterial microcapsules, 20-30 parts of modified polyacrylonitrile fibers, 3-5 parts of activated carbon and 1-2 parts of a plant extract. Cotton fibers, modified wool fibers and modified polyacrylonitrile fibers are blended to obtain yarns, antibacterial microcapsules, activated carbon and plant extracts are dispersed to obtain a mixture, the yarns are soaked in the mixture and slowly dried to obtain modified yarns, and the antibacterial microcapsules, the activated carbon and the plant extracts are uniformly attached to gaps of the yarns and pore structures of the fibers, so that the antibacterial effect is improved. The modified yarn has the properties of resisting bacteria and adsorbing peculiar smell, and then the obtained modified yarn is further woven into the antibacterial home textile fabric, so that the home textile fabric not only has the characteristics of softness, brightness and high strength, but also has the characteristics of resisting bacteria and adsorbing peculiar smell.

Description

Technical Field

[0001] This invention relates to the field of home textile fabric technology, specifically to an antibacterial home textile fabric and its preparation method. Background Technology

[0002] As people's living standards improve, their demand for quality is increasing. They prefer items they encounter in daily life that are natural or have a high proportion of natural ingredients. For example, home textiles often require fabrics made of pure cotton or animal fibers. While pure cotton fibers have good moisture absorption and breathability, their moisture-absorbing properties in home textiles mean that in humid environments, the fabric remains damp for extended periods, providing a favorable environment for bacteria, fungi, and other microorganisms. This can lead to microbial accumulation, potentially causing the fabric to yellow, mold, and develop unpleasant odors, which is detrimental to cleanliness and hygiene. People demand that home textile fabrics meet basic practical needs, possess good antibacterial properties, and, to a certain extent, absorb odors.

[0003] Research on antibacterial properties of home textile fabrics is currently underway. Existing methods often involve secondary finishing with antibacterial agents, imparting their antibacterial properties to the fabric. However, antibacterial fabrics obtained through secondary finishing often contain volatile toxic gases or are not water-resistant, losing their antibacterial effect after several washes. Additionally, some methods use a combination of different natural fibers with antibacterial properties to achieve an antibacterial effect. However, purely natural antibacterial fibers are relatively rare, and their antibacterial performance is limited, failing to meet the widespread demand for antibacterial home textile fabrics. Summary of the Invention

[0004] The purpose of this invention is to provide an antibacterial home textile fabric and its preparation method. The resulting home textile fabric not only has the characteristics of being soft, bright, and strong, but also has antibacterial and odor-absorbing properties.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An antibacterial home textile fabric comprises the following raw materials in parts by weight: 30-50 parts cotton fiber, 30-50 parts modified wool fiber, 3-5 parts antibacterial microcapsules, 20-30 parts modified polyacrylonitrile fiber, 3-5 parts activated carbon, and 1-2 parts plant extracts.

[0007] The method for preparing the antibacterial home textile fabric includes the following steps:

[0008] Step 1: Take parts by weight of antibacterial microcapsules and activated carbon, add 80-150 times the mass of antibacterial microcapsules of anhydrous ethanol, and ultrasonically disperse evenly to obtain mixture A;

[0009] Step 2: Take a certain number of parts by weight of the plant extract, add 80 to 150 times the weight of the plant extract in anhydrous ethanol, disperse evenly, and obtain mixture B;

[0010] Step 3: Take cotton fiber, modified wool fiber and modified polyacrylonitrile fiber in the specified mass fractions and blend them evenly to form yarn. Mix mixture A and mixture B, put them into the yarn, soak for 12-24 hours, and dry in an oven at 40-70℃ to obtain modified yarn.

[0011] Step 4: Take the yarn obtained in Step 3 and weave it into fabric using a weaving machine to obtain antibacterial home textile fabric.

[0012] Further preferred, the modified wool fiber is prepared by taking a certain mass of clean and tidy wool fiber, soaking it in a certain mass of hydrogen peroxide, heating it in a water bath to 40-50℃, soaking for 0.5-1 hour, taking it out, drying it, then adding a certain mass of glutaraldehyde, soaking it for 20-30 minutes, taking it out, drying it, soaking it in a certain mass of hyperbranched polymer, soaking it for 20-30 minutes, taking it out, drying it, and soaking it in a certain mass of nano-silver aqueous solution, taking it out, and drying it to obtain the modified wool fiber.

[0013] Further preferred, the raw material mass ratio in the modified wool fiber is wool fiber: hydrogen peroxide: glutaraldehyde: hyperbranched polymer: nano silver aqueous solution = 1:1~2:2:2~3:5; in the nano silver aqueous solution, the size of the nano silver particles is 5~10nm and the concentration is above 5000ppm.

[0014] Further preferred, the hyperbranched polymer is prepared as follows: a certain mass of dimethyltriamine is placed in a reaction vessel and kept in an ice-water bath for 30 minutes; a certain mass of methyl acrylate and a certain mass of methanol are then taken and stirred evenly to obtain a methanol solution of methyl acrylate. Under nitrogen protection, the methanol solution of methyl acrylate is slowly added dropwise to the reaction vessel. After the addition is complete, the reaction is carried out at room temperature for 3-4 hours, and then the temperature is raised to 150°C and the reaction is continued for 3-4 hours to obtain the hyperbranched polymer.

[0015] Further preferably, the mass ratio of raw materials in the hyperbranched polymer is dimethyltriamine: methyl acrylate: methanol = 3:1:5.

[0016] Further preferred, the antibacterial microcapsules are prepared by taking a certain mass of polyvinyl alcohol powder, adding a certain mass of deionized water, heating to 90-98°C, dissolving, and preparing a polyvinyl alcohol solution; then taking a certain mass of tetracycline, adding a certain mass of anhydrous ethanol, dissolving, and preparing a tetracycline solution; mixing the polyvinyl alcohol solution and the tetracycline solution evenly, homogenizing, and spray drying to obtain antibacterial microcapsules; wherein the mass ratio is polyvinyl alcohol powder: deionized water: tetracycline: anhydrous ethanol = 10:100-300:1:10.

[0017] Further preferred, the modified polyacrylonitrile fiber is prepared by: taking a certain mass of polyacrylonitrile fiber, adding a certain mass of dimethyl sulfoxide, stirring for 10-20 minutes, then adding a certain mass of anhydrous ethanol and saturated copper sulfate solution, stirring evenly, then adding a certain mass of palladium catalyst, adjusting the pH to 1-2 with nitric acid, stirring for 15-30 minutes, then removing and drying to obtain the modified polyacrylonitrile fiber; wherein the raw material mass ratio is polyacrylonitrile fiber: dimethyl sulfoxide: anhydrous ethanol: saturated copper sulfate solution: palladium = 10: 2-3: 10: 2-4: 0.2.

[0018] Further preferably, the activated carbon is powdered activated carbon with a particle size that passes through a 300-mesh sieve. Before use, it needs to be dispersed in a solution of anhydrous ethanol and deionized water at a volume ratio of 1:1.

[0019] Further preferably, the plant extract is obtained by mixing Coptis chinensis extract and Chrysanthemum extract in a mass ratio of 1:2 to 3.

[0020] The process of modifying polyacrylonitrile fibers involves the chelation of copper ions onto the polyacrylonitrile fiber molecular chains, and the reaction is as follows:

[0021]

[0022] The beneficial effects of this invention are:

[0023] 1. A yarn is obtained by blending cotton fiber, modified wool fiber, and modified polyacrylonitrile fiber. Antibacterial microcapsules, activated carbon, and plant extracts are dispersed to obtain a mixture. The yarn is soaked in the mixture and slowly dried to obtain modified yarn. At this point, the antibacterial microcapsules, activated carbon, and plant extracts are evenly attached to the yarn gaps and fiber pore structure. The modified yarn has antibacterial and odor-absorbing properties. The modified yarn is then used to further weave antibacterial home textile fabrics, making the home textile fabrics not only soft, bright, and strong, but also antibacterial and odor-absorbing properties.

[0024] 2. Wool fiber is a natural protein fiber. To improve its disadvantages of easily adsorbing microorganisms and providing a transmission route for microorganisms, this invention first pre-treats the wool fiber with hydrogen peroxide to eliminate the active hydroxyl groups on the surface of the wool fiber, exposing the amino groups on the wool fiber. Then, glutaraldehyde is used as a cross-linking agent to react with the amino groups on the wool fiber. Hyperbranched polymer is added, and glutaraldehyde can also react with the amino groups on the hyperbranched polymer. The hyperbranched polymer is grafted onto the wool fiber and then soaked in a nano-silver dispersion. The hyperbranched polymer has numerous cavities and outward functional groups within the cavities, which can capture nano-silver particles without the addition of other reducing agents and stabilizers, effectively loading the nano-silver particles onto the wool fiber. The nano-silver particles have excellent bactericidal ability and can kill the microorganisms adsorbed by the wool fiber, thereby enabling the wool fiber to achieve an antibacterial effect.

[0025] 3. The use of antibacterial microcapsules, which are evenly dispersed and impregnated in fiber or yarn raw materials, enhances the antibacterial ability of the fibers or yarns and provides a long-lasting antibacterial effect. The antibacterial microcapsules use polyvinyl alcohol as the wall material, which swells when it absorbs water, exposing the tetracycline core material. The tetracycline is slowly released to exert its antibacterial and bactericidal effects. Since bacteria, fungi and other microorganisms can easily survive in humid environments, the antibacterial microcapsules are also designed to slowly release bactericidal agents in humid environments, resulting in strong antibacterial ability and good effect.

[0026] 4. Modified polyacrylonitrile fiber is made by dissolving the surface of polyacrylonitrile fiber to expose the polar group -CN. Copper sulfate solution is added, and under the catalysis of palladium and the action of nitric acid, the polar group -CN chelates with copper ions, so that copper ions are bound to the polyacrylonitrile fiber molecular chain. Copper can exert antibacterial effect and will not be lost due to washing, etc., thus having a long-lasting antibacterial effect.

[0027] 5. Activated carbon has a porous structure. The smaller the pore diameter, the stronger its ability to adsorb gas molecules. When activated carbon is evenly distributed on fibers and yarns, it enables the fibers and yarns to adsorb special odors. When activated carbon is combined with antibacterial microcapsules, modified wool fibers, and modified polyacrylonitrile fibers, it adsorbs and aggregates microorganisms or odorous gas molecules, thereby killing them and improving the antibacterial ability of home textile fabrics.

[0028] 6. The plant extract is a mixture of Coptis chinensis extract and chrysanthemum extract. Coptis chinensis extract contains a large amount of alkaloids and flavonoids, while chrysanthemum extract contains a large amount of flavonoids. Flavonoids can effectively inhibit bacterial activity and have good antibacterial effects. In addition, the plant extract is volatile and has a natural fragrance. The use of plant extract further improves the antibacterial ability of home textile fabrics. Detailed Implementation

[0029] The technical solution of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1

[0031] An antibacterial home textile fabric comprises the following raw materials in parts by weight: 30 parts cotton fiber, 30 parts modified wool fiber, 3 parts antibacterial microcapsules, 20 parts modified polyacrylonitrile fiber, 3 parts activated carbon, and 1 part plant extract.

[0032] The modified wool fiber is prepared by soaking a certain mass of clean wool fiber in a certain mass of hydrogen peroxide in a water bath heated to 40°C for 0.5 hours, removing and drying it, then adding a certain mass of glutaraldehyde and soaking it for 20 minutes, removing and drying it, then soaking it in a certain mass of hyperbranched polymer for 20 minutes, removing and drying it, and finally soaking it in a certain mass of nano-silver aqueous solution, removing and drying it to obtain the modified wool fiber. The raw material mass ratio is wool fiber:hydrogen peroxide:glutaraldehyde:hyperbranched polymer:nano-silver aqueous solution = 1:1:2:2:5; the nano-silver aqueous solution contains nano-silver particles with a size of 5 nm and a concentration of 5000 ppm.

[0033] The hyperbranched polymer is prepared as follows: a certain mass of dimethyltriamine is placed in a reaction vessel and kept in an ice-water bath for 30 minutes; a certain mass of methyl acrylate and a certain mass of methanol are then taken and stirred evenly to obtain a methanol solution of methyl acrylate. Under nitrogen protection, the methanol solution of methyl acrylate is slowly added dropwise to the reaction vessel. After the addition is complete, the reaction is carried out at room temperature for 3 hours, and then the temperature is raised to 150°C and the reaction is continued for 3 hours to obtain the hyperbranched polymer; wherein the mass ratio of the raw materials is dimethyltriamine: methyl acrylate: methanol = 3:1:5.

[0034] The antibacterial microcapsules are prepared by taking a certain mass of polyvinyl alcohol powder, adding a certain mass of deionized water, heating to 90°C, dissolving, and preparing a polyvinyl alcohol solution; then taking a certain mass of tetracycline, adding a certain mass of anhydrous ethanol, dissolving, and preparing a tetracycline solution; mixing the polyvinyl alcohol solution and the tetracycline solution evenly, homogenizing, and spray drying to obtain the antibacterial microcapsules; wherein the mass ratio is polyvinyl alcohol powder: deionized water: tetracycline: anhydrous ethanol = 10:100:1:10;

[0035] The modified polyacrylonitrile fiber is prepared by: taking a certain mass of polyacrylonitrile fiber, adding a certain mass of dimethyl sulfoxide, stirring for 10 minutes, then adding a certain mass of anhydrous ethanol and saturated copper sulfate solution, stirring evenly, then adding a certain mass of palladium catalyst, adjusting the pH to 1 with nitric acid, stirring for 15 minutes, removing the mixture, and drying it to obtain the modified polyacrylonitrile fiber; wherein the mass ratio of the raw materials is polyacrylonitrile fiber: dimethyl sulfoxide: anhydrous ethanol: saturated copper sulfate solution: palladium = 10:2:10:2:0.2;

[0036] The plant extract is obtained by mixing Coptis chinensis extract and Chrysanthemum extract in a mass ratio of 1:2;

[0037] The method for preparing the antibacterial home textile fabric includes the following steps:

[0038] Step 1: Take parts by weight of antibacterial microcapsules and activated carbon, add 80 times the mass of antibacterial microcapsules of anhydrous ethanol, and ultrasonically disperse evenly to obtain mixture A;

[0039] Step 2: Take a certain number of parts by weight of the plant extract, add 80 times the weight of the plant extract in anhydrous ethanol, disperse evenly, and obtain mixture B;

[0040] Step 3: Take cotton fiber, modified wool fiber and modified polyacrylonitrile fiber in the specified mass fractions and blend them evenly to form yarn. Mix mixture A and mixture B, put them into the yarn, soak for 12 hours, and dry in an oven at 40℃ to obtain modified yarn.

[0041] Step 4: Take the yarn obtained in Step 3 and weave it into fabric using a weaving machine to obtain antibacterial home textile fabric.

[0042] Example 2

[0043] An antibacterial home textile fabric comprises the following raw materials in parts by weight: 50 parts cotton fiber, 50 parts modified wool fiber, 5 parts antibacterial microcapsules, 30 parts modified polyacrylonitrile fiber, 5 parts activated carbon, and 2 parts plant extracts.

[0044] The modified wool fiber is prepared by soaking a certain mass of clean wool fiber in a certain mass of hydrogen peroxide in a water bath heated to 50°C for 1 hour, removing it, air-drying it, then adding a certain mass of glutaraldehyde and soaking it for 30 minutes, removing it, air-drying it, soaking it in a certain mass of hyperbranched polymer for 30 minutes, removing it, air-drying it, and finally soaking it in a certain mass of nano-silver aqueous solution, removing it, and air-drying it to obtain the modified wool fiber. The raw material mass ratio is wool fiber:hydrogen peroxide:glutaraldehyde:hyperbranched polymer:nano-silver aqueous solution = 1:2:2:3:5; the nano-silver aqueous solution contains nano-silver particles with a size of 10 nm and a concentration of 5000 ppm.

[0045] The hyperbranched polymer is prepared as follows: a certain mass of dimethyltriamine is placed in a reaction vessel and kept in an ice-water bath for 30 minutes; then a certain mass of methyl acrylate and a certain mass of methanol are taken and stirred evenly to obtain a methanol solution of methyl acrylate. Under nitrogen protection, the methanol solution of methyl acrylate is slowly added dropwise to the reaction vessel. After the addition is complete, the reaction is carried out at room temperature for 4 hours, then the temperature is raised to 150°C and the reaction is continued for 4 hours to obtain the hyperbranched polymer; wherein the mass ratio of raw materials is dimethyltriamine: methyl acrylate: methanol = 3:1:5.

[0046] The antibacterial microcapsules are prepared by taking a certain mass of polyvinyl alcohol powder, adding a certain mass of deionized water, heating to 98°C, dissolving, and preparing a polyvinyl alcohol solution; then taking a certain mass of tetracycline, adding a certain mass of anhydrous ethanol, dissolving, and preparing a tetracycline solution; mixing the polyvinyl alcohol solution and the tetracycline solution evenly, homogenizing, and spray drying to obtain the antibacterial microcapsules; wherein the mass ratio is polyvinyl alcohol powder: deionized water: tetracycline: anhydrous ethanol = 10:300:1:10;

[0047] The modified polyacrylonitrile fiber is prepared by: taking a certain mass of polyacrylonitrile fiber, adding a certain mass of dimethyl sulfoxide, stirring for 20 minutes, then adding a certain mass of anhydrous ethanol and saturated copper sulfate solution, stirring evenly, then adding a certain mass of palladium catalyst, adjusting the pH to 2 with nitric acid, stirring for 30 minutes, removing the mixture, and drying it to obtain the modified polyacrylonitrile fiber; wherein the mass ratio of the raw materials is polyacrylonitrile fiber: dimethyl sulfoxide: anhydrous ethanol: saturated copper sulfate solution: palladium = 10:3:10:4:0.2;

[0048] The plant extract is obtained by mixing Coptis chinensis extract and Chrysanthemum extract in a mass ratio of 1:3;

[0049] The method for preparing the antibacterial home textile fabric includes the following steps:

[0050] Step 1: Take parts by weight of antibacterial microcapsules and activated carbon, add 150 times the mass of antibacterial microcapsules of anhydrous ethanol, and ultrasonically disperse evenly to obtain mixture A;

[0051] Step 2: Take a certain number of parts by weight of the plant extract, add 150 times the weight of the plant extract in anhydrous ethanol, disperse evenly, and obtain mixture B;

[0052] Step 3: Take cotton fiber, modified wool fiber and modified polyacrylonitrile fiber in the specified mass fractions and blend them evenly to form yarn. Mix mixture A and mixture B, put them into the yarn, soak for 24 hours, and dry in an oven at 70℃ to obtain modified yarn.

[0053] Step 4: Take the yarn obtained in Step 3 and weave it into fabric using a weaving machine to obtain antibacterial home textile fabric.

[0054] Example 3

[0055] An antibacterial home textile fabric comprises the following raw materials in parts by weight: 40 parts cotton fiber, 40 parts modified wool fiber, 4 parts antibacterial microcapsules, 25 parts modified polyacrylonitrile fiber, 4 parts activated carbon, and 1 part plant extract.

[0056] The modified wool fiber is prepared by soaking a certain mass of clean wool fiber in a certain mass of hydrogen peroxide in a water bath heated to 45°C for 0.7 hours, removing and drying it, then adding a certain mass of glutaraldehyde and soaking it for 25 minutes, removing and drying it, then soaking it in a certain mass of hyperbranched polymer for 25 minutes, removing and drying it, and finally soaking it in a certain mass of nano-silver aqueous solution, removing and drying it to obtain the modified wool fiber. The raw material mass ratio is wool fiber:hydrogen peroxide:glutaraldehyde:hyperbranched polymer:nano-silver aqueous solution = 1:1:2:3:5; the nano-silver aqueous solution contains nano-silver particles with a size of 7 nm and a concentration of 5000 ppm.

[0057] The hyperbranched polymer is prepared as follows: a certain mass of dimethyltriamine is placed in a reaction vessel and kept in an ice-water bath for 30 minutes; then a certain mass of methyl acrylate and a certain mass of methanol are taken and stirred evenly to obtain a methanol solution of methyl acrylate. Under nitrogen protection, the methanol solution of methyl acrylate is slowly added dropwise to the reaction vessel. After the addition is complete, the reaction is carried out at room temperature for 4 hours, then the temperature is raised to 150°C and the reaction is continued for 3 hours to obtain the hyperbranched polymer; wherein the mass ratio of raw materials is dimethyltriamine: methyl acrylate: methanol = 3:1:5.

[0058] The antibacterial microcapsules are prepared by taking a certain mass of polyvinyl alcohol powder, adding a certain mass of deionized water, heating to 95°C, dissolving, and preparing a polyvinyl alcohol solution; then taking a certain mass of tetracycline, adding a certain mass of anhydrous ethanol, dissolving, and preparing a tetracycline solution; mixing the polyvinyl alcohol solution and the tetracycline solution evenly, homogenizing, and spray drying to obtain the antibacterial microcapsules; wherein the mass ratio is polyvinyl alcohol powder: deionized water: tetracycline: anhydrous ethanol = 10:200:1:10;

[0059] The modified polyacrylonitrile fiber is prepared by: taking a certain mass of polyacrylonitrile fiber, adding a certain mass of dimethyl sulfoxide, stirring for 15 minutes, then adding a certain mass of anhydrous ethanol and saturated copper sulfate solution, stirring evenly, then adding a certain mass of palladium catalyst, adjusting the pH to 2 with nitric acid, stirring for 20 minutes, removing the mixture, and drying it to obtain the modified polyacrylonitrile fiber; wherein the mass ratio of the raw materials is polyacrylonitrile fiber: dimethyl sulfoxide: anhydrous ethanol: saturated copper sulfate solution: palladium = 10:2:10:3:0.2;

[0060] The plant extract is obtained by mixing Coptis chinensis extract and Chrysanthemum extract in a mass ratio of 1:3;

[0061] The method for preparing the antibacterial home textile fabric includes the following steps:

[0062] Step 1: Take parts by weight of antibacterial microcapsules and activated carbon, add 120 times the mass of antibacterial microcapsules of anhydrous ethanol, and ultrasonically disperse evenly to obtain mixture A;

[0063] Step 2: Take a certain number of parts by weight of the plant extract, add 100 times the weight of the plant extract in anhydrous ethanol, disperse evenly, and obtain mixture B;

[0064] Step 3: Take cotton fiber, modified wool fiber and modified polyacrylonitrile fiber in the specified mass fractions and blend them evenly to form yarn. Mix mixture A and mixture B, put them into the yarn, soak for 18 hours, and dry in an oven at 60℃ to obtain modified yarn.

[0065] Step 4: Take the yarn obtained in Step 3 and weave it into fabric using a weaving machine to obtain antibacterial home textile fabric.

[0066] Testing: The antibacterial home textile fabrics prepared in Examples 1-3 were tested. The antibacterial performance was tested according to GB / T20944.3-2008- "Evaluation of Antibacterial Properties of Textiles - Part 3: Vibration Method". The standard states that a sample exhibits antibacterial effect if the inhibition rate against Staphylococcus aureus and Escherichia coli is ≥70%, or against Candida albicans is ≥60%. The performance was referenced to ISO standards. The test was conducted according to 17299-1-2004, "Determination of Deodorizing Performance of Textiles - Part 1". Test conditions: sealed environment temperature 20±2℃, relative humidity 60±2%. 20mL of ammonia water was poured into the test container, which was then placed in a sealed box. A certain amount of sodium hydroxide was added, and the sealed box was immediately closed. After standing for 1 hour, the ammonia concentration in the sealed box was measured. The antibacterial home textile fabrics prepared in Examples 1-3 were cut into 20cm×20cm squares and placed in different sealed boxes. After standing for 12 hours to allow sufficient absorption of ammonia, the ammonia concentration in the sealed box was measured, and the ammonia removal rate was calculated. The test results are shown in the table below.

[0067] Example 1 Example 2 Example 3 Staphylococcus aureus inhibition rate (%) >95 >99 >98 Escherichia coli inhibition rate (%) >98 >99 >99 Candida albicans inhibition rate (%) >92 >98 >95 Ammonia removal rate (%) 76 85 81

[0068] As shown in the table above, the antibacterial home textile fabric prepared by the method of the present invention has a good antibacterial rate and ammonia removal rate, indicating that it has good antibacterial ability.

[0069] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An antibacterial home textile fabric, characterized in that, The raw materials include the following parts by weight: 30-50 parts cotton fiber, 30-50 parts modified wool fiber, 3-5 parts antibacterial microcapsules, 20-30 parts modified polyacrylonitrile fiber, 3-5 parts activated carbon, and 1-2 parts plant extracts. The method for preparing the antibacterial home textile fabric includes the following steps: Step 1: Take parts by weight of antibacterial microcapsules and activated carbon, add 80-150 times the mass of antibacterial microcapsules of anhydrous ethanol, and ultrasonically disperse evenly to obtain mixture A; Step 2: Take a certain number of parts by weight of the plant extract, add 80 to 150 times the weight of the plant extract in anhydrous ethanol, disperse evenly, and obtain mixture B; Step 3: Take cotton fiber, modified wool fiber and modified polyacrylonitrile fiber in the specified mass fractions and blend them evenly to form yarn. Mix mixture A and mixture B, put them into the yarn, soak for 12-24 hours, and dry in an oven at 40-70℃ to obtain modified yarn. Step 4: Take the yarn obtained in Step 3 and weave it into fabric using a weaving machine to obtain antibacterial home textile fabric.

2. The antibacterial home textile fabric according to claim 1, characterized in that, The modified wool fiber is prepared by taking a certain mass of clean and tidy wool fiber, soaking it in a certain mass of hydrogen peroxide, heating it in a water bath to 40-50℃, soaking it for 0.5-1 hour, taking it out, drying it, then adding a certain mass of glutaraldehyde, soaking it for 20-30 minutes, taking it out, drying it, soaking it in a certain mass of hyperbranched polymer, soaking it for 20-30 minutes, taking it out, drying it, and then soaking it in a certain mass of nano silver aqueous solution, taking it out, and drying it to obtain the modified wool fiber.

3. The antibacterial home textile fabric according to claim 2, characterized in that, The modified wool fiber has a raw material mass ratio of wool fiber: hydrogen peroxide: glutaraldehyde: hyperbranched polymer: nano silver aqueous solution = 1:1~2:2:2~3:5; the nano silver aqueous solution contains nano silver particles with a size of 5~10nm and a concentration of more than 5000ppm.

4. The antibacterial home textile fabric according to claim 2, characterized in that, The hyperbranched polymer is prepared as follows: a certain mass of dimethyltriamine is placed in a reaction vessel and kept in an ice-water bath for 30 minutes; a certain mass of methyl acrylate and a certain mass of methanol are then taken and stirred evenly to obtain a methanol solution of methyl acrylate. Under nitrogen protection, the methanol solution of methyl acrylate is slowly added dropwise to the reaction vessel. After the addition is complete, the reaction is carried out at room temperature for 3-4 hours, and then the temperature is raised to 150°C and the reaction is continued for 3-4 hours to obtain the hyperbranched polymer.

5. The antibacterial home textile fabric according to claim 2, characterized in that, The mass ratio of raw materials in the hyperbranched polymer is dimethyltriamine: methyl acrylate: methanol = 3:1:

5.

6. The antibacterial home textile fabric according to claim 1, characterized in that: The antibacterial microcapsules are prepared by taking a certain mass of polyvinyl alcohol powder, adding a certain mass of deionized water, heating to 90-98℃, dissolving, and preparing a polyvinyl alcohol solution; then taking a certain mass of tetracycline, adding a certain mass of anhydrous ethanol, dissolving, and preparing a tetracycline solution; mixing the polyvinyl alcohol solution and the tetracycline solution evenly, homogenizing, and spray drying to obtain antibacterial microcapsules; wherein the mass ratio is polyvinyl alcohol powder: deionized water: tetracycline: anhydrous ethanol = 10:100-300:1:

10.

7. The antibacterial home textile fabric according to claim 1, characterized in that: The modified polyacrylonitrile fiber is prepared by: taking a certain mass of polyacrylonitrile fiber, adding a certain mass of dimethyl sulfoxide, stirring for 10-20 minutes, then adding a certain mass of anhydrous ethanol and saturated copper sulfate solution, stirring evenly, then adding a certain mass of palladium catalyst, adjusting the pH to 1-2 with nitric acid, stirring for 15-30 minutes, then removing and drying to obtain the modified polyacrylonitrile fiber; wherein the mass ratio of raw materials is polyacrylonitrile fiber: dimethyl sulfoxide: anhydrous ethanol: saturated copper sulfate solution: palladium = 10: 2-3: 10: 2-4: 0.

2.

8. The antibacterial home textile fabric according to claim 1, characterized in that: The activated carbon is powdered activated carbon with a particle size that passes through a 300-mesh sieve. Before use, it needs to be dispersed in a solution of anhydrous ethanol and deionized water at a volume ratio of 1:

1.

9. The antibacterial home textile fabric according to claim 1, characterized in that: The plant extract is obtained by mixing Coptis chinensis extract and Chrysanthemum extract in a mass ratio of 1:2 to 3.

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