Antibacterial high-performance cloth as well as preparation method and application thereof

Abstract

The invention provides antibacterial cloth and a preparation method thereof. The preparation method comprises the following steps: treating the cloth with acid; and then treating with a plant extracting solution. The invention also provides an antibacterial fabric. The antibacterial fabric comprises the antibacterial cloth provided by any one of the invention. The antibacterial fabric is selected from any one of sports underwear, yoga pants, riding clothes, outdoor climbing clothes, diving suit, antibacterial socks, a field tent, a sleeping bag lining, a helmet buffer liner, a battle boot lining, a backpack braid, a waistband, medical protective clothing, a mask, a medical hood, a medical goggle bandage, a bedspread, back cushion cloth, an automobile seat cover, a subway seat cover and a high-speed rail seat cover; the invention relates to an aircraft seat cover, a household sofa cloth cover, a food processing protective garment and a cold-chain logistics protective garment.

Description

Technical Field

[0001] The present invention relates to an antibacterial high-performance fabric, in particular to an antibacterial high-performance nylon fabric and a preparation method and application thereof. Background Art

[0002] Nylon is an important synthetic fiber material. Since its industrialization in the mid-20th century, it has been widely used in various fields, including clothing, industry, and medicine, thanks to its excellent mechanical strength, wear resistance, corrosion resistance, and good processing properties. Nylon 66, in particular, outperforms standard nylon 6 in overall performance due to its shorter carbon chain length and higher crystallinity in its molecular structure. It is particularly suitable for functional textile products that require high material properties.

[0003] Nylon 66 has the following typical advantages: excellent mechanical properties: high tensile strength and good elongation at break, which can meet the requirements of high-stress scenarios such as outdoor, military, and industrial use; good wear resistance and resilience: it maintains a stable shape under conditions of frequent friction or repeated wearing and taking off, and is suitable for sportswear, functional underwear, etc.; excellent heat resistance: the melting point is as high as about 250°C, and it can withstand high-temperature ironing and industrial heat treatment; low hygroscopicity and good dyeability coexist: compared with nylon 6, it is easier to modify stably and can take into account both functional addition and comfort requirements.

[0004] With the change of people's lifestyle and consumption concept, the demand for high-performance nylon has increased significantly. Especially in the following typical application scenarios, higher requirements are placed on high-performance nylon 66 materials that have both high strength and functionality (such as antibacterial, quick-drying, and washable): Medical and public health fields: In high-infection risk environments such as hospitals and clinics, the materials worn by medical staff are required to meet the triple standards of "antibacterial, washable, and comfortable". Nylon 66 has a good foundation in the preparation of surgical gowns, protective clothing, medical bedspreads, etc.; Military and police protective equipment: In extreme climates and complex terrains, camouflage uniforms, tactical vests, sleeping bag linings, etc. have higher requirements on the tear resistance, wear resistance and long-term antibacterial properties of materials; High-end sports and outdoor clothing: Cycling suits, mountaineering suits, diving suits, etc. are not only required to be highly elastic and wear-resistant, but also to have antibacterial deodorization and good skin contact safety; Underwear and maternal and child products: functional underwear, antibacterial underwear, Baby carriers, breastfeeding products, etc. focus on softness and safety, and nylon 66 has both skin-friendliness and structural stability; household and automotive textiles: fabrics that have large-area contact with the human body, such as sofa fabrics, car seat covers, rail transit seat covers, and mattress covers, are gradually introducing the new standard of "long-lasting antibacterial and easy to clean"; food processing and cold chain logistics fields: work clothes, aprons, sleeve guards, etc. need to be in humid and highly polluted environments for a long time, and antibacterial and durable materials can reduce the risk of cross-contamination; aerospace and rail transit equipment: under conditions of high-density contact and long-term use, systematic requirements are put forward for the flame retardant, antibacterial and environmental protection properties of fabrics; smart wearables and future functional textiles: with the popularization of wearable devices, nylon 66 has become the preferred substrate for integrating antibacterial, conductive or sensing functions due to its high strength and excellent film-forming properties.

[0005] Faced with this increasingly diverse market demand, traditional nylon materials face limitations in expanding their functionality. This is particularly true in the antimicrobial field, where conventional finishing processes suffer from poor antimicrobial performance, poor wash durability, and heavy metal leaching. Currently, most nylon fabrics on the market are prone to developing black stains on the back that are difficult to remove in a washing machine due to repeated sweating in the summer, lack of timely washing, and poor ventilation. Therefore, developing new fabrics that combine high-performance base materials (such as nylon 66) with stable, broad-spectrum, and wash-resistant antimicrobial properties has become a key research direction and industry focus in the field of functional textile materials. Summary of the Invention

[0006] Based on certain theoretical support and through a large number of tests, the inventor invented a high-performance nylon with excellent antibacterial activity, thus obtaining the present invention.

[0007] In a first aspect of the present invention, a plant extract is provided, wherein the plant extract is prepared by the following method: Take 2.5-3.5 parts by weight of Viola yedoensis, 2.5-3.5 parts by weight of Portulaca oleracea, 2.5-3.5 parts by weight of Artemisia annua, 2.5-3.5 parts by weight of Ailanthus altissima leaves, 2.5-3.5 parts by weight of Hedyotis diffusa, 0.7-1.3 parts by weight of Leonurus japonicus, 0.7-1.3 parts by weight of Mistletoe, 0.7-1.3 parts by weight of Bletilla striata, 0.7-1.3 parts by weight of Paridis chinensis, and 0.7-1.3 parts by weight of Opuntia coccinellae, grind them, mix them evenly, boil them in water, and filter them to obtain the product.

[0008] In some embodiments of the present invention, the plant extract is prepared by the following method: Take 3 parts by weight of Viola yedoensis, 3 parts by weight of Portulaca oleracea, 3 parts by weight of Artemisia annua, 3 parts by weight of Ailanthus altissima leaves, 3 parts by weight of Hedyotis diffusa, 1 part by weight of Leonurus japonicus, 1 part by weight of Mistletoe, 1 part by weight of Bletilla striata, 1 part by weight of Paridis septemlobus, and 1 part by weight of Opuntia coccinellae, grind them, mix them evenly, boil them in water, and filter them to obtain the product.

[0009] In some embodiments of the present invention, the plant extract is prepared by the following method: Take 2.5-3.5 parts by weight of Viola yedoensis, 2.5-3.5 parts by weight of Portulaca oleracea, 2.5-3.5 parts by weight of Artemisia annua, 2.5-3.5 parts by weight of Ailanthus altissima leaves, 2.5-3.5 parts by weight of Hedyotis diffusa, 0.7-1.3 parts by weight of Leonurus japonicus, 0.7-1.3 parts by weight of Viscum album, 0.7-1.3 parts by weight of Bletilla striata, 0.7-1.3 parts by weight of Paridis septemlobus, and 0.7-1.3 parts by weight of Opuntia coccinellae, grind and mix to obtain a mixed powder, add 3-7 times the weight of water of the mixed powder, boil for 1-3 hours, filter and remove the residue, and obtain the product.

[0010] In some embodiments of the present invention, the plant extract is prepared by the following method: Take 3 parts by weight of Viola yedoensis, 3 parts by weight of Portulaca oleracea, 3 parts by weight of Artemisia annua, 3 parts by weight of Ailanthus altissima leaves, 3 parts by weight of Hedyotis diffusa, 1 part by weight of Leonurus japonicus, 1 part by weight of Mistletoe, 1 part by weight of Bletilla striata, 1 part by weight of Paridis septemlobus, and 1 part by weight of Opuntia coccinella, crush and mix to obtain a mixed powder, add 3-7 times the weight of water of the mixed powder, boil for 1-3 hours, and filter to remove the residue to obtain the product.

[0011] In some embodiments of the present invention, the plant extract is prepared by the following method: Take 2.5-3.5 parts by weight of Viola yedoensis, 2.5-3.5 parts by weight of Portulaca oleracea, 2.5-3.5 parts by weight of Artemisia annua, 2.5-3.5 parts by weight of Ailanthus altissima leaves, 2.5-3.5 parts by weight of Hedyotis diffusa, 0.7-1.3 parts by weight of Leonurus japonicus, 0.7-1.3 parts by weight of Mistletoe, 0.7-1.3 parts by weight of Bletilla striata, 0.7-1.3 parts by weight of Paridis septemlobus, and 0.7-1.3 parts by weight of Opuntia coccinella truncatula, grind and mix to obtain a mixed powder, add 5 times the weight of water of the mixed powder, boil for 1-3 hours, filter and remove the residue, and obtain the product.

[0012] In some embodiments of the present invention, the plant extract is prepared by the following method: Take 2.5-3.5 parts by weight of Viola yedoensis, 2.5-3.5 parts by weight of Portulaca oleracea, 2.5-3.5 parts by weight of Artemisia annua, 2.5-3.5 parts by weight of Ailanthus altissima leaves, 2.5-3.5 parts by weight of Hedyotis diffusa, 0.7-1.3 parts by weight of Leonurus japonicus, 0.7-1.3 parts by weight of Mistletoe, 0.7-1.3 parts by weight of Bletilla striata, 0.7-1.3 parts by weight of Paridis septemlobus, and 0.7-1.3 parts by weight of Opuntia coccinella, grind and mix to obtain a mixed powder, add 3-7 times the weight of water of the mixed powder, boil for 2 hours, filter and remove the filter residue to obtain the product.

[0013] In some embodiments of the present invention, the plant extract is prepared by the following method: Take 3 parts by weight of Viola yedoensis, 3 parts by weight of Portulaca oleracea, 3 parts by weight of Artemisia annua, 3 parts by weight of Ailanthus altissima leaves, 3 parts by weight of Hedyotis diffusa, 1 part by weight of Leonurus japonicus, 1 part by weight of Mistletoe, 1 part by weight of Bletilla striata, 1 part by weight of Paridis septemlobus, and 1 part by weight of Opuntia coccinella, crush and mix to obtain a mixed powder, add 5 times the weight of water of the mixed powder, boil for 1-3 hours, and filter to remove the residue to obtain the product.

[0014] In some embodiments of the present invention, the plant extract is prepared by the following method: Take 3 parts by weight of Viola yedoensis, 3 parts by weight of Portulaca oleracea, 3 parts by weight of Artemisia annua, 3 parts by weight of Ailanthus altissima leaves, 3 parts by weight of Hedyotis diffusa, 1 part by weight of Leonurus japonicus, 1 part by weight of Mistletoe, 1 part by weight of Bletilla striata, 1 part by weight of Paridis septemlobus, and 1 part by weight of Opuntia coccinella, crush and mix to obtain a mixed powder, add 3-7 times the weight of water of the mixed powder, boil for 2 hours, and filter to remove the residue to obtain the product.

[0015] In some embodiments of the present invention, the plant extract is prepared by the following method: Take 3 parts by weight of Viola yedoensis, 3 parts by weight of Portulaca oleracea, 3 parts by weight of Artemisia annua, 3 parts by weight of Ailanthus altissima leaves, 3 parts by weight of Hedyotis diffusa, 1 part by weight of Leonurus japonicus, 1 part by weight of Mistletoe, 1 part by weight of Bletilla striata, 1 part by weight of Paridis septemlobus, and 1 part by weight of Opuntia coccinella, crush and mix to obtain a mixed powder, add 5 times the weight of water of the mixed powder, boil for 2 hours, and filter to remove the residue to obtain the product.

[0016] In some embodiments of the present invention, the preparation method of the plant extract is the same as the preparation method of any plant extract in Example 2 of the present invention. In some embodiments of the present invention, the preparation method of the plant extract is the same as the preparation method of plant extract 4 in Example 2 of the present invention.

[0017] In some embodiments of the present invention, the plant extract is prepared by the following method: Take 3 parts by weight of Viola yedoensis, 3 parts by weight of Portulaca oleracea, 3 parts by weight of Artemisia annua, 3 parts by weight of Ailanthus altissima leaves, 3 parts by weight of Hedyotis diffusa, 1 part by weight of Leonurus japonicus, 1 part by weight of Viscum album, 1 part by weight of Bletilla striata, 1 part by weight of Paridis septemlobus, and 1 part by weight of Opuntia coccinella, wash them with clean water, and naturally dry them; use a grinder to grind them respectively to an average particle size of about 0.5 mm; mix them evenly to obtain a mixed powder; add 5 times the weight of mineral water of the mixed powder, boil them to 100° C., maintain for 2 hours, and naturally cool them to room temperature; filter and remove the filter residue to obtain the product.

[0018] In a second aspect of the present invention, an antibacterial fabric is provided, wherein the antibacterial fabric is obtained by the following method: (1) treating the fabric with (E)-3-(3,4-dihydroxyphenyl) acrylic acid; then (2) treating the fabric treated in step (1) with a plant extract; The plant extract is prepared by the following method: taking 2.5-3.5 parts by weight of Viola yedoensis, 2.5-3.5 parts by weight of Portulaca oleracea, 2.5-3.5 parts by weight of Artemisia annua, 2.5-3.5 parts by weight of Ailanthus altissima leaves, 2.5-3.5 parts by weight of Hedyotis diffusa, 0.7-1.3 parts by weight of Leonurus japonicus, 0.7-1.3 parts by weight of Mistletoe, 0.7-1.3 parts by weight of Bletilla striata, 0.7-1.3 parts by weight of Paridis chinensis, and 0.7-1.3 parts by weight of Opuntia coccinella truncatula, crushing and mixing, boiling in water, and filtering to obtain the plant extract.

[0019] In some embodiments of the present invention, the fabric is nylon. In some embodiments of the present invention, the fabric is nylon 66.

[0020] In some embodiments of the present invention, the antibacterial fabric is obtained by the following method: (1) treating the fabric with (E)-3-(3,4-dihydroxyphenyl) acrylic acid; then (2) treating the fabric treated in step (1) with a plant extract; The plant extract is prepared by the following method: taking 2.5-3.5 parts by weight of Viola yedoensis, 2.5-3.5 parts by weight of Portulaca oleracea, 2.5-3.5 parts by weight of Artemisia annua, 2.5-3.5 parts by weight of Ailanthus altissima leaves, 2.5-3.5 parts by weight of Hedyotis diffusa, 0.7-1.3 parts by weight of Leonurus japonicus, 0.7-1.3 parts by weight of Mistletoe, 0.7-1.3 parts by weight of Bletilla striata, 0.7-1.3 parts by weight of Paridis chinensis, and 0.7-1.3 parts by weight of Opuntia coccinellae, crushing and mixing, boiling in water, and filtering to obtain the plant extract; The fabric is nylon 66.

[0021] In some embodiments of the present invention, the treatment with the plant extract is to completely immerse the cloth treated in step (1) in the plant extract, take out the cloth, and air-dry it naturally.

[0022] In some embodiments of the present invention, the treatment with the plant extract is to completely immerse the cloth treated in step (1) in the plant extract, let it stand, take out the cloth, and let it air-dry naturally.

[0023] In some embodiments of the present invention, the treatment with the plant extract is to completely immerse the cloth treated in step (1) in the plant extract, let it stand for 0.5-1.5 hours, take out the cloth, and let it air-dry naturally.

[0024] In some embodiments of the present invention, the treatment with the plant extract is to completely immerse the cloth treated in step (1) in the plant extract, let it stand for 1 hour, take out the cloth, and let it air-dry naturally.

[0025] In some embodiments of the present invention, the antibacterial fabric is obtained by the following method: (1) treating the fabric with (E)-3-(3,4-dihydroxyphenyl) acrylic acid; then (2) treating the fabric treated in step (1) with a plant extract; The plant extract is prepared by the following method: taking 2.5-3.5 parts by weight of Viola yedoensis, 2.5-3.5 parts by weight of Portulaca oleracea, 2.5-3.5 parts by weight of Artemisia annua, 2.5-3.5 parts by weight of Ailanthus altissima leaves, 2.5-3.5 parts by weight of Hedyotis diffusa, 0.7-1.3 parts by weight of Leonurus japonicus, 0.7-1.3 parts by weight of Mistletoe, 0.7-1.3 parts by weight of Bletilla striata, 0.7-1.3 parts by weight of Paridis chinensis, and 0.7-1.3 parts by weight of Opuntia coccinellae, crushing and mixing, boiling in water, and filtering to obtain the plant extract; The fabric is nylon 66.

[0026] Nylon 66, also known as nylon 66, polyamide-66, and polyhexamethylene adipamide, is produced by the polycondensation of hexamethylenediamine and adipic acid. It offers excellent overall properties, including high strength, rigidity, impact resistance, oil and chemical resistance, wear resistance, and self-lubrication. Its particularly strong hardness, rigidity, heat resistance, and creep properties are also exceptional. Furthermore, the raw materials are readily available and low-cost, making it widely used in industry, clothing, decoration, engineering plastics, and other fields.

[0027] In some embodiments of the present invention, the plant extract is prepared by the following method: Take 3 parts by weight of Viola yedoensis, 3 parts by weight of Portulaca oleracea, 3 parts by weight of Artemisia annua, 3 parts by weight of Ailanthus altissima leaves, 3 parts by weight of Hedyotis diffusa, 1 part by weight of Leonurus japonicus, 1 part by weight of Mistletoe, 1 part by weight of Bletilla striata, 1 part by weight of Paridis septemlobus, and 1 part by weight of Opuntia coccinellae, grind them, mix them evenly, boil them in water, and filter them to obtain the product.

[0028] In some embodiments of the present invention, the plant extract is prepared by the following method: Take 2.5-3.5 parts by weight of Viola yedoensis, 2.5-3.5 parts by weight of Portulaca oleracea, 2.5-3.5 parts by weight of Artemisia annua, 2.5-3.5 parts by weight of Ailanthus altissima leaves, 2.5-3.5 parts by weight of Hedyotis diffusa, 0.7-1.3 parts by weight of Leonurus japonicus, 0.7-1.3 parts by weight of Viscum album, 0.7-1.3 parts by weight of Bletilla striata, 0.7-1.3 parts by weight of Paridis septemlobus, and 0.7-1.3 parts by weight of Opuntia coccinellae, grind and mix to obtain a mixed powder, add 3-7 times the weight of water of the mixed powder, boil for 1-3 hours, filter and remove the residue, and obtain the product.

[0029] In some embodiments of the present invention, the plant extract is prepared by the following method: Take 3 parts by weight of Viola yedoensis, 3 parts by weight of Portulaca oleracea, 3 parts by weight of Artemisia annua, 3 parts by weight of Ailanthus altissima leaves, 3 parts by weight of Hedyotis diffusa, 1 part by weight of Leonurus japonicus, 1 part by weight of Mistletoe, 1 part by weight of Bletilla striata, 1 part by weight of Paridis septemlobus, and 1 part by weight of Opuntia coccinella, crush and mix to obtain a mixed powder, add 3-7 times the weight of water of the mixed powder, boil for 1-3 hours, and filter to remove the residue to obtain the product.

[0030] In some embodiments of the present invention, the plant extract is prepared by the following method: Take 2.5-3.5 parts by weight of Viola yedoensis, 2.5-3.5 parts by weight of Portulaca oleracea, 2.5-3.5 parts by weight of Artemisia annua, 2.5-3.5 parts by weight of Ailanthus altissima leaves, 2.5-3.5 parts by weight of Hedyotis diffusa, 0.7-1.3 parts by weight of Leonurus japonicus, 0.7-1.3 parts by weight of Mistletoe, 0.7-1.3 parts by weight of Bletilla striata, 0.7-1.3 parts by weight of Paridis septemlobus, and 0.7-1.3 parts by weight of Opuntia coccinella truncatula, grind and mix to obtain a mixed powder, add 5 times the weight of water of the mixed powder, boil for 1-3 hours, filter and remove the residue, and obtain the product.

[0031] In some embodiments of the present invention, the plant extract is prepared by the following method: Take 2.5-3.5 parts by weight of Viola yedoensis, 2.5-3.5 parts by weight of Portulaca oleracea, 2.5-3.5 parts by weight of Artemisia annua, 2.5-3.5 parts by weight of Ailanthus altissima leaves, 2.5-3.5 parts by weight of Hedyotis diffusa, 0.7-1.3 parts by weight of Leonurus japonicus, 0.7-1.3 parts by weight of Mistletoe, 0.7-1.3 parts by weight of Bletilla striata, 0.7-1.3 parts by weight of Paridis septemlobus, and 0.7-1.3 parts by weight of Opuntia coccinella, grind and mix to obtain a mixed powder, add 3-7 times the weight of water of the mixed powder, boil for 2 hours, filter and remove the filter residue to obtain the product.

[0032] In some embodiments of the present invention, the plant extract is prepared by the following method: Take 3 parts by weight of Viola yedoensis, 3 parts by weight of Portulaca oleracea, 3 parts by weight of Artemisia annua, 3 parts by weight of Ailanthus altissima leaves, 3 parts by weight of Hedyotis diffusa, 1 part by weight of Leonurus japonicus, 1 part by weight of Mistletoe, 1 part by weight of Bletilla striata, 1 part by weight of Paridis septemlobus, and 1 part by weight of Opuntia coccinella, crush and mix to obtain a mixed powder, add 5 times the weight of water of the mixed powder, boil for 1-3 hours, and filter to remove the residue to obtain the product.

[0033] In some embodiments of the present invention, the plant extract is prepared by the following method: Take 3 parts by weight of Viola yedoensis, 3 parts by weight of Portulaca oleracea, 3 parts by weight of Artemisia annua, 3 parts by weight of Ailanthus altissima leaves, 3 parts by weight of Hedyotis diffusa, 1 part by weight of Leonurus japonicus, 1 part by weight of Mistletoe, 1 part by weight of Bletilla striata, 1 part by weight of Paridis septemlobus, and 1 part by weight of Opuntia coccinella, crush and mix to obtain a mixed powder, add 3-7 times the weight of water of the mixed powder, boil for 2 hours, and filter to remove the residue to obtain the product.

[0034] In some embodiments of the present invention, the plant extract is prepared by the following method: Take 3 parts by weight of Viola yedoensis, 3 parts by weight of Portulaca oleracea, 3 parts by weight of Artemisia annua, 3 parts by weight of Ailanthus altissima leaves, 3 parts by weight of Hedyotis diffusa, 1 part by weight of Leonurus japonicus, 1 part by weight of Mistletoe, 1 part by weight of Bletilla striata, 1 part by weight of Paridis septemlobus, and 1 part by weight of Opuntia coccinella, crush and mix to obtain a mixed powder, add 5 times the weight of water of the mixed powder, boil for 2 hours, and filter to remove the residue to obtain the product.

[0035] In some embodiments of the present invention, the preparation method of the plant extract is the same as the preparation method of any plant extract in Example 2 of the present invention. In some embodiments of the present invention, the preparation method of the plant extract is the same as the preparation method of plant extract 4 in Example 2 of the present invention.

[0036] In some embodiments of the present invention, the plant extract is prepared by the following method: Take 3 parts by weight of Viola yedoensis, 3 parts by weight of Portulaca oleracea, 3 parts by weight of Artemisia annua, 3 parts by weight of Ailanthus altissima leaves, 3 parts by weight of Hedyotis diffusa, 1 part by weight of Leonurus japonicus, 1 part by weight of Viscum album, 1 part by weight of Bletilla striata, 1 part by weight of Paridis septemlobus, and 1 part by weight of Opuntia coccinella, wash them with clean water, and naturally dry them; use a grinder to grind them respectively to an average particle size of about 0.5 mm; mix them evenly to obtain a mixed powder; add 5 times the weight of mineral water of the mixed powder, boil them to 100° C., maintain for 2 hours, and naturally cool them to room temperature; filter and remove the filter residue to obtain the product.

[0037] In some embodiments of the present invention, the (E)-3-(3,4-dihydroxyphenyl)acrylic acid treatment method is: 9 volumes of water and 1 volume of 75% ethanol (volume fraction) are mixed, and about 0.005%-0.02% of (E)-3-(3,4-dihydroxyphenyl)acrylic acid is added to the total mass of the mixed solution. The fabric is immersed in the mixture, maintained at 35-45° C. and soaked for 20-40 minutes, and the fabric is removed and naturally air-dried.

[0038] In some embodiments of the present invention, the method for treating with (E)-3-(3,4-dihydroxyphenyl)acrylic acid is as follows: 9 volumes of water and 1 volume of 75% ethanol (volume fraction) are mixed, and about 0.01% of (E)-3-(3,4-dihydroxyphenyl)acrylic acid is added to the total mass of the mixed solution. The fabric is immersed in the mixture, maintained at 35-45° C. and soaked for 20-40 minutes, and the fabric is removed and air-dried.

[0039] In some embodiments of the present invention, the method for treating with (E)-3-(3,4-dihydroxyphenyl)acrylic acid is as follows: 9 volumes of water and 1 volume of 75% ethanol (volume fraction) are mixed, and about 0.01% of (E)-3-(3,4-dihydroxyphenyl)acrylic acid by weight of the total mass of the mixed solution is added, and the fabric is immersed in the mixture, maintained at 40° C. and soaked for 20-40 minutes, and the fabric is removed and naturally air-dried.

[0040] In some embodiments of the present invention, the method for treating with (E)-3-(3,4-dihydroxyphenyl)acrylic acid is as follows: 9 volumes of water and 1 volume of 75% ethanol (volume fraction) are mixed, and about 0.01% of (E)-3-(3,4-dihydroxyphenyl)acrylic acid is added to the total mass of the mixed solution. The fabric is immersed in the mixture, maintained at 40° C. and soaked for 30 minutes, and the fabric is removed and air-dried.

[0041] In some embodiments of the present invention, the method for treating (E)-3-(3,4-dihydroxyphenyl)acrylic acid is as follows: 900 mL of water and 100 mL of 75% ethanol (volume fraction) are mixed, 0.1 g of (E)-3-(3,4-dihydroxyphenyl)acrylic acid is added, and the mixture is heated to 40°C to dissolve; nylon 66 fabric is placed therein, maintained at 40°C and soaked for 30 minutes, removed, and naturally air-dried.

[0042] In some embodiments of the present invention, the antibacterial fabric is obtained by the following method: (1) Mix 9 volumes of water and 1 volume of 75% ethanol (volume fraction), add about 0.005%-0.02% (E)-3-(3,4-dihydroxyphenyl) acrylic acid to the total mass of the mixed solution, immerse the fabric in the mixture, maintain 35-45°C for 20-40 minutes, remove the fabric, and air dry it naturally; (2) treating the fabric treated in step (1) with a plant extract; The plant extract is prepared by the following method: taking 2.5-3.5 parts by weight of Viola yedoensis, 2.5-3.5 parts by weight of Portulaca oleracea, 2.5-3.5 parts by weight of Artemisia annua, 2.5-3.5 parts by weight of Ailanthus altissima leaves, 2.5-3.5 parts by weight of Hedyotis diffusa, 0.7-1.3 parts by weight of Leonurus japonicus, 0.7-1.3 parts by weight of Mistletoe, 0.7-1.3 parts by weight of Bletilla striata, 0.7-1.3 parts by weight of Paridis chinensis, and 0.7-1.3 parts by weight of Opuntia coccinella truncatula, crushing and mixing, boiling in water, and filtering to obtain the plant extract.

[0043] In some embodiments of the present invention, the fabric is nylon. In some embodiments of the present invention, the fabric is nylon 66. In some embodiments of the present invention, the fabric is nylon 66.

[0044] In some embodiments of the present invention, the antibacterial fabric is obtained by the following method: (1) Mix 9 volumes of water and 1 volume of 75% ethanol (volume fraction), add about 0.005%-0.02% (E)-3-(3,4-dihydroxyphenyl) acrylic acid to the total mass of the mixed solution, immerse the fabric in the mixture, maintain 35-45°C for 20-40 minutes, remove the fabric, and air dry it naturally; (2) treating the fabric treated in step (1) with a plant extract; The plant extract is prepared by the following method: taking 2.5-3.5 parts by weight of Viola yedoensis, 2.5-3.5 parts by weight of Portulaca oleracea, 2.5-3.5 parts by weight of Artemisia annua, 2.5-3.5 parts by weight of Ailanthus altissima leaves, 2.5-3.5 parts by weight of Hedyotis diffusa, 0.7-1.3 parts by weight of Leonurus japonicus, 0.7-1.3 parts by weight of Mistletoe, 0.7-1.3 parts by weight of Bletilla striata, 0.7-1.3 parts by weight of Paridis chinensis, and 0.7-1.3 parts by weight of Opuntia coccinella truncatula, crushing and mixing, boiling in water, and filtering to obtain the plant extract.

[0045] In some embodiments of the present invention, the antibacterial fabric is obtained by the following method: (1) Mix 9 volumes of water and 1 volume of 75% ethanol (volume fraction), add about 0.005%-0.02% (E)-3-(3,4-dihydroxyphenyl) acrylic acid to the total mass of the mixed solution, immerse the fabric in the mixture, maintain 35-45°C for 20-40 minutes, remove the fabric, and air dry it naturally; (2) completely immersing the cloth treated in step (1) into the plant extract, taking out the cloth and allowing it to air dry naturally; The plant extract is prepared by the following method: taking 2.5-3.5 parts by weight of Viola yedoensis, 2.5-3.5 parts by weight of Portulaca oleracea, 2.5-3.5 parts by weight of Artemisia annua, 2.5-3.5 parts by weight of Ailanthus altissima leaves, 2.5-3.5 parts by weight of Hedyotis diffusa, 0.7-1.3 parts by weight of Leonurus japonicus, 0.7-1.3 parts by weight of Mistletoe, 0.7-1.3 parts by weight of Bletilla striata, 0.7-1.3 parts by weight of Paridis chinensis, and 0.7-1.3 parts by weight of Opuntia coccinella truncatula, crushing and mixing, boiling in water, and filtering to obtain the plant extract.

[0046] In some embodiments of the present invention, the antibacterial fabric is obtained by the following method: (1) Mix 9 volumes of water and 1 volume of 75% ethanol (volume fraction), add about 0.01% (E)-3-(3,4-dihydroxyphenyl) acrylic acid to the total mass of the mixed solution, immerse the fabric in the mixture, maintain at 40°C for 30 minutes, remove the fabric, and air dry it naturally; (2) completely immersing the cloth treated in step (1) into the plant extract, taking out the cloth and allowing it to air dry naturally; The plant extract is prepared by the following method: taking 3 parts by weight of Viola yedoensis, 3 parts by weight of Portulaca oleracea, 3 parts by weight of Artemisia annua, 3 parts by weight of Ailanthus altissima leaves, 3 parts by weight of Hedyotis diffusa, 1 part by weight of Leonurus japonicus, 1 part by weight of Mistletoe, 1 part by weight of Bletilla striata, 1 part by weight of Paridis septempunctata, and 1 part by weight of Opuntia coccinella truncatula, crushing and mixing to obtain a mixed powder, adding 5 times the weight of water of the mixed powder, boiling for 2 hours, filtering and removing the filter residue, and obtaining the obtained product.

[0047] In some embodiments of the present invention, the antibacterial fabric is obtained by the following method: (1) Mix 900 mL of water and 100 mL of 75% ethanol (volume fraction), add 0.1 g of (E)-3-(3,4-dihydroxyphenyl) acrylic acid, and heat to 40°C to dissolve; place nylon 66 fabric in the mixture, maintain 40°C and soak for 30 minutes, take it out, and let it air dry naturally; (2) completely immersing the cloth treated in step (1) into the plant extract, taking out the cloth and allowing it to air dry naturally; The plant extract is prepared by the following method: taking 3 parts by weight of Viola yedoensis, 3 parts by weight of Portulaca oleracea, 3 parts by weight of Artemisia annua, 3 parts by weight of Ailanthus altissima leaves, 3 parts by weight of Hedyotis diffusa, 1 part by weight of Leonurus japonicus, 1 part by weight of Mistletoe, 1 part by weight of Bletilla striata, 1 part by weight of Paridis septempunctata, and 1 part by weight of Opuntia coccinella truncatula, crushing and mixing to obtain a mixed powder, adding 5 times the weight of water of the mixed powder, boiling for 2 hours, filtering and removing the filter residue, and obtaining the obtained product.

[0048] In some embodiments of the present invention, the antibacterial fabric is obtained by the following method: (1) Mix 900 mL of water and 100 mL of 75% ethanol (volume fraction), add 0.1 g of (E)-3-(3,4-dihydroxyphenyl) acrylic acid, and heat to 40°C to dissolve; place nylon 66 fabric in the mixture, maintain 40°C and soak for 30 minutes, take it out, and let it air dry naturally; (2) completely immersing the cloth treated in step (1) into the plant extract, taking out the cloth and allowing it to air dry naturally; The plant extract is prepared by the following method: 3 parts by weight of Viola yedoensis, 3 parts by weight of Portulaca oleracea, 3 parts by weight of Artemisia annua, 3 parts by weight of Ailanthus altissima leaves, 3 parts by weight of Hedyotis diffusa, 1 part by weight of Leonurus japonicus, 1 part by weight of Mistletoe, 1 part by weight of Bletilla striata, 1 part by weight of Paridis septempunctata, and 1 part by weight of Opuntia coccinellae are crushed and mixed to obtain a mixed powder, 5 times the weight of water of the mixed powder is added, the mixture is boiled for 2 hours, and the residue is removed by filtration. The fabric is nylon 66.

[0049] In some embodiments of the present invention, the antibacterial fabric is prepared by any of the methods described in Example 3. In some embodiments of the present invention, the antibacterial fabric is prepared by the method described in Group A4 in Table 1 of Example 3. In some embodiments of the present invention, the antibacterial fabric is prepared by treating the fabric with acid A in Example 3, followed by treating the fabric with plant extract 4.

[0050] In a third aspect of the present invention, a method for preparing an antibacterial fabric is provided, wherein the method is as described in any one of the second aspects of the present invention.

[0051] In some embodiments of the present invention, the method for preparing the antibacterial fabric includes: (1) treating the fabric with (E)-3-(3,4-dihydroxyphenyl) acrylic acid; then (2) treating the fabric treated in step (1) with a plant extract; The plant extract is prepared by the following method: taking 2.5-3.5 parts by weight of Viola yedoensis, 2.5-3.5 parts by weight of Portulaca oleracea, 2.5-3.5 parts by weight of Artemisia annua, 2.5-3.5 parts by weight of Ailanthus altissima leaves, 2.5-3.5 parts by weight of Hedyotis diffusa, 0.7-1.3 parts by weight of Leonurus japonicus, 0.7-1.3 parts by weight of Mistletoe, 0.7-1.3 parts by weight of Bletilla striata, 0.7-1.3 parts by weight of Paridis chinensis, and 0.7-1.3 parts by weight of Opuntia coccinella truncatula, crushing and mixing, boiling in water, and filtering to obtain the plant extract.

[0052] In some embodiments of the present invention, the method for preparing the antibacterial fabric includes: (1) treating the fabric with (E)-3-(3,4-dihydroxyphenyl) acrylic acid; then (2) treating the fabric treated in step (1) with a plant extract; The plant extract is prepared by the following method: taking 2.5-3.5 parts by weight of Viola yedoensis, 2.5-3.5 parts by weight of Portulaca oleracea, 2.5-3.5 parts by weight of Artemisia annua, 2.5-3.5 parts by weight of Ailanthus altissima leaves, 2.5-3.5 parts by weight of Hedyotis diffusa, 0.7-1.3 parts by weight of Leonurus japonicus, 0.7-1.3 parts by weight of Mistletoe, 0.7-1.3 parts by weight of Bletilla striata, 0.7-1.3 parts by weight of Paridis chinensis, and 0.7-1.3 parts by weight of Opuntia coccinellae, crushing and mixing, boiling in water, and filtering to obtain the plant extract; The fabric is nylon 66.

[0053] In some embodiments of the present invention, the preparation method of the antibacterial fabric is: (1) Mix 9 volumes of water and 1 volume of 75% ethanol (volume fraction), add about 0.005%-0.02% (E)-3-(3,4-dihydroxyphenyl) acrylic acid to the total mass of the mixed solution, immerse the fabric in the mixture, maintain 35-45°C for 20-40 minutes, remove the fabric, and air dry it naturally; (2) completely immersing the cloth treated in step (1) into the plant extract, taking out the cloth and allowing it to air dry naturally; The plant extract is prepared by the following method: taking 2.5-3.5 parts by weight of Viola yedoensis, 2.5-3.5 parts by weight of Portulaca oleracea, 2.5-3.5 parts by weight of Artemisia annua, 2.5-3.5 parts by weight of Ailanthus altissima leaves, 2.5-3.5 parts by weight of Hedyotis diffusa, 0.7-1.3 parts by weight of Leonurus japonicus, 0.7-1.3 parts by weight of Mistletoe, 0.7-1.3 parts by weight of Bletilla striata, 0.7-1.3 parts by weight of Paridis chinensis, and 0.7-1.3 parts by weight of Opuntia coccinella truncatula, crushing and mixing, boiling in water, and filtering to obtain the plant extract.

[0054] In some embodiments of the present invention, the preparation method of the antibacterial fabric is: (1) Mix 9 volumes of water and 1 volume of 75% ethanol (volume fraction), add about 0.005%-0.02% (E)-3-(3,4-dihydroxyphenyl) acrylic acid to the total mass of the mixed solution, immerse the fabric in the mixture, maintain 35-45°C for 20-40 minutes, remove the fabric, and air dry it naturally; (2) completely immersing the cloth treated in step (1) into the plant extract, taking out the cloth and allowing it to air dry naturally; The plant extract is prepared by the following method: taking 3 parts by weight of Viola yedoensis, 3 parts by weight of Portulaca oleracea, 3 parts by weight of Artemisia annua, 3 parts by weight of Ailanthus altissima leaves, 3 parts by weight of Hedyotis diffusa, 1 part by weight of Leonurus japonicus, 1 part by weight of Mistletoe, 1 part by weight of Bletilla striata, 1 part by weight of Paridis septempunctata, and 1 part by weight of Opuntia coccinellae, crushing and mixing, boiling in water, and filtering to obtain the plant extract.

[0055] In some embodiments of the present invention, the preparation method of the antibacterial fabric is: (1) Mix 9 volumes of water and 1 volume of 75% ethanol (volume fraction), add about 0.005%-0.02% (E)-3-(3,4-dihydroxyphenyl) acrylic acid to the total mass of the mixed solution, immerse the fabric in the mixture, maintain 35-45°C for 20-40 minutes, remove the fabric, and air dry it naturally; (2) completely immersing the cloth treated in step (1) into the plant extract, taking out the cloth and allowing it to air dry naturally; The plant extract is prepared by the following method: 3 parts by weight of Viola yedoensis, 3 parts by weight of Portulaca oleracea, 3 parts by weight of Artemisia annua, 3 parts by weight of Ailanthus altissima leaves, 3 parts by weight of Hedyotis diffusa, 1 part by weight of Leonurus japonicus, 1 part by weight of Mistletoe, 1 part by weight of Bletilla striata, 1 part by weight of Paridis septempunctata, and 1 part by weight of Opuntia coccinellae are ground, mixed, boiled in water, and filtered to obtain the obtained product; The fabric is nylon 66.

[0056] In a fourth aspect of the present invention, an antibacterial fabric is provided, wherein the antibacterial fabric comprises the antibacterial fabric according to any one of the second aspects of the present invention; The antibacterial fabric is selected from any one of the following: sports underwear, yoga pants, cycling clothes, outdoor mountaineering clothes, diving suits, antibacterial socks, field tents, sleeping bag liners, helmet cushioning pads, combat boot liners, backpack webbing, belts, medical protective clothing, masks, medical head masks, medical goggles straps, bedspreads, cushion fabrics, car seat covers, subway seat covers, high-speed rail seat covers, airplane seat covers, household sofa covers, food processing protective clothing, and cold chain logistics protective clothing.

[0057] In some embodiments of the present invention, the antibacterial fabric is sports underwear, yoga pants, cycling clothes or outdoor mountaineering clothes.

[0058] In some embodiments of the present invention, the antibacterial fabric is medical protective clothing, a mask, or a medical head cover.

[0059] The antibacterial fabric of the present invention exhibits significant antibacterial and antimicrobial effects. Without being bound by theory, possible reasons include: nylon 66 contains a small amount of free alkaline chemical groups, which may be modified by certain acidic substances; this then effectively adsorbs beneficial components (possibly including antimicrobial components) from plant extracts, thereby exerting antibacterial or antimicrobial effects. DETAILED DESCRIPTION

[0060] Example Example 1: Discovery of technical problems The inventors have discovered that in recent years, various summer clothing (such as short-sleeved shirts) and jackets (including some costing thousands of yuan) on the market have been prone to developing black spots on the underarms, back, and other areas of the clothing after repeated wear in hot summer weather. These spots are caused by excessive bacterial or fungal growth in the relatively high temperature and humidity environment caused by sweat. These black spots are extremely difficult to completely remove using a washing machine or hand washing, forcing wearers to put these garments aside or discard them, causing significant inconvenience and financial losses for consumers and a waste of resources for society.

[0061] Based on years of experience working in cotton mills, the inventors discovered this problem / business opportunity and have tried various solutions. One of these solutions involves modifying and treating the fabric of clothing to make it difficult for bacteria or fungi to grow and reproduce rapidly.

[0062] Example 2: Preparation of Anti-Black Spot Solution (for the Production of High-Performance Nylon and Other Fabrics) Preparation of Plant Extract 1: 3 parts by weight of Viola yedoensis, 3 parts by weight of Portulaca oleracea, 3 parts by weight of Artemisia annua, 3 parts by weight of Ailanthus altissima leaves, 3 parts by weight of Hedyotis diffusa, 1 part by weight of Leonurus japonicus, and 1 part by weight of Opuntia cochinchinensis are washed with clean water and air-dried. Grind each of these using a grinder to an average particle size of approximately 0.5 mm. Mix thoroughly to obtain a mixed powder. Add 5 times the weight of mineral water to the mixed powder, boil to 100°C for 2 hours, and cool naturally to room temperature. Filter to remove the residue to obtain a clear plant extract 1.

[0063] Preparation of Plant Extract 2: 3 parts by weight of Artemisia annua, 3 parts by weight of Ailanthus altissima leaves, 3 parts by weight of Hedyotis diffusa, 1 part by weight of Leonurus japonicus, 1 part by weight of Viscum album, 1 part by weight of Bletilla striata, 1 part by weight of Parsley striata, and 1 part by weight of Opuntia coccinellae were washed with clean water and air-dried. Grind each of the ingredients using a grinder to an average particle size of approximately 0.5 mm. Mix thoroughly to obtain a mixed powder. Add 5 times the weight of mineral water to the mixed powder, boil to 100°C for 2 hours, and cool naturally to room temperature. Filter to remove the residue to obtain a clear Plant Extract 2.

[0064] Preparation of Plant Extract 3: Wash 1 part by weight of Viola yedoensis, 1 part by weight of Portulaca oleracea, 1 part by weight of Artemisia annua, 1 part by weight of Ailanthus altissima leaves, 1 part by weight of Hedyotis diffusa, 1 part by weight of Leonurus japonicus, 1 part by weight of Viscum album, 1 part by weight of Bletilla striata, 1 part by weight of Parsley striata, and 1 part by weight of Opuntia coccinella truncatula with water and air-dry. Grind each of these ingredients using a grinder to an average particle size of approximately 0.5 mm. Mix thoroughly to obtain a mixed powder. Add 5 times the weight of mineral water to the mixed powder, boil to 100°C for 2 hours, and cool naturally to room temperature. Filter to remove the residue to obtain a clear Plant Extract 3.

[0065] Preparation of Plant Extract 4: 3 parts by weight of Viola yedoensis, 3 parts by weight of Portulaca oleracea, 3 parts by weight of Artemisia annua, 3 parts by weight of Ailanthus altissima leaves, 3 parts by weight of Hedyotis diffusa, 1 part by weight of Leonurus japonicus, 1 part by weight of Viscum album, 1 part by weight of Bletilla striata, 1 part by weight of Parsley striata, and 1 part by weight of Opuntia coccinellae were washed with clean water and air-dried. The mixture was then pulverized using a grinder to an average particle size of approximately 0.5 mm. The mixture was then mixed to obtain a mixed powder. Five times the weight of the mixed powder was added to the mixture, and the mixture was boiled to 100°C for 2 hours. The mixture was then cooled to room temperature. The residue was removed by filtration to obtain a clear plant extract 4.

[0066] Preparation of Plant Extract 5: 3 parts by weight of Viola yedoensis, 3 parts by weight of Portulaca oleracea, 3 parts by weight of Artemisia annua, and 1 part by weight of Opuntia cactus were washed with clean water and air-dried. Grind each of the ingredients using a grinder to an average particle size of approximately 0.5 mm. Mix thoroughly to obtain a mixed powder. Add 5 times the weight of mineral water to the mixed powder, boil to 100°C for 2 hours, and cool naturally to room temperature. Filter to remove the residue to obtain a clear plant extract 5.

[0067] Preparation of Plant Extract 6: 3 parts by weight of Ailanthus altissima leaves, 3 parts by weight of Hedyotis diffusa, 1 part by weight of Leonurus japonicus, 1 part by weight of Viscum album, 1 part by weight of Bletilla striata, and 1 part by weight of Parsley striata were washed with clean water and air-dried. Grind each of the ingredients using a grinder to an average particle size of approximately 0.5 mm. Mix thoroughly to obtain a mixed powder. Add 5 times the weight of mineral water to the mixed powder, boil to 100°C for 2 hours, and cool naturally to room temperature. Filter to remove the residue to obtain a clear plant extract 6.

[0068] Preparation of Plant Extract 7: 3 parts by weight of Viola yedoensis, 3 parts by weight of Portulaca oleracea, 3 parts by weight of Hedyotis diffusa, 1 part by weight of Leonurus japonicus, 1 part by weight of Viscum album, 1 part by weight of Bletilla striata, 1 part by weight of Parsley striata, and 1 part by weight of Opuntia coccinellae were washed with clean water and air-dried. The mixture was then ground using a grinder to an average particle size of approximately 0.5 mm. The mixture was then mixed to obtain a mixed powder. Five times the weight of the mixed powder was added to the mixture, and the mixture was boiled to 100°C for 2 hours. The mixture was then cooled to room temperature. The residue was removed by filtration to obtain a clear Plant Extract 7.

[0069] Preparation of Plant Extract 8: 3 parts by weight of Viola yedoensis, 3 parts by weight of Portulaca oleracea, 3 parts by weight of Artemisia annua, 3 parts by weight of Ailanthus altissima leaves, 1 part by weight of Viscum album, 1 part by weight of Bletilla striata, 1 part by weight of Parsley striata, and 1 part by weight of Opuntia coccinellae were washed with clean water and air-dried. Grind each of these using a grinder to an average particle size of approximately 0.5 mm. Mix thoroughly to obtain a mixed powder. Add 5 times the weight of mineral water to the mixed powder, boil to 100°C for 2 hours, and cool naturally to room temperature. Filter to remove the residue to obtain a clear plant extract 8.

[0070] Preparation of plant extract 9: Referring to patent CN105663725A, 6 parts by weight of Herba Immortalis, 8 parts by weight of Orchidaceae, 3 parts by weight of Atractylodes macrocephala, 15 parts by weight of Portulaca oleracea, 5 parts by weight of Sophora flavescens, 3 parts by weight of Viola yedoensis, 5 parts by weight of Centipede Grass, 12 parts by weight of Prunella vulgaris, 16 parts by weight of Zanthoxylum bungeanum, 3 parts by weight of Artemisia annua, 10 parts by weight of Banana, 5 parts by weight of Taraxacum mongolicum, 16 parts by weight of Salt Bran, 10 parts by weight of Herba Singulariae, 8 parts by weight of Artemisia argyi, 10 parts by weight of Glycyrrhiza uralensis, 15 parts by weight of Herba Coptidis, 3 parts by weight of garlic, 8 parts by weight of cactus, 5 parts by weight of wax tree, 1 part by weight of Prunus mume, 12 parts by weight of Folium Isatidis, 10 parts by weight of Eucalyptus, 9 parts by weight of Angelica dahurica, 15 parts by weight of Magnolia officinalis, 15 parts by weight of Tripterygium wilfordii, 8 parts by weight of Abacus chinensis, 5 parts by weight of Sophora flavescens, 3 parts by weight of Honeysuckle, 14 parts by weight of Gleditsia sinensis, 9 parts by weight of Chrysanthemum indicum, and 6 parts by weight of Arctium lappa are washed with clean water and naturally dried; the mixture is pulverized using a grinder to an average particle size of approximately 0.5 mm; the mixture is uniformly mixed to obtain a mixed powder; 5 times the weight of the mixed powder is added with mineral water, the mixture is boiled to 100° C. for 2 hours, and the mixture is naturally cooled to room temperature; the residue is removed by filtration to obtain a clear plant extract 9.

[0071] Preparation of Plant Extract 10: 3 parts by weight of Viola yedoensis, 3 parts by weight of Portulaca oleracea, 3 parts by weight of Artemisia annua, 3 parts by weight of Ailanthus altissima leaves, 3 parts by weight of Hedyotis diffusa, 1 part by weight of Leonurus japonicus, 1 part by weight of Opuntia cochinchinensis, 2 parts by weight of Taraxacum officinale, 3 parts by weight of Artemisia argyi, and 1 part by weight of Honeysuckle; wash with clean water and air-dry; grind each of these using a grinder to an average particle size of approximately 0.5 mm; mix thoroughly to obtain a mixed powder; add 5 times the weight of mineral water to the mixed powder, boil to 100°C for 2 hours, and cool naturally to room temperature; filter to remove the residue to obtain a clear plant extract 10.

[0072] Preparation of plant extract 11: Refer to patent CN105796960A, take Dalingyeh 12 parts by weight, Gengxu 9 parts by weight, cactus 4 parts by weight, Leigongteng 10 parts by weight, Qinye 5 parts by weight, Jixuecao 12 parts by weight, Huzhang 13 parts by weight, Wangbuluixing 4 parts by weight, Baomaren 9 parts by weight, Jingjie 5 parts by weight, Lulutong 12 parts by weight, Huangbai 3 parts by weight, Yijiaoteng 7 parts by weight, Mudanpi 13 parts by weight, Gegen 11 parts by weight, Baizhu 4 parts by weight, Qingdai 6 parts by weight, Zicao 13 parts by weight, Longdincao 7 parts by weight, Tiannanxing 5 parts by weight, Zhizi 18 parts by weight, Yuxingcao 11 parts by weight, Xianhecao 9 parts by weight, Qianghuo 4 parts by weight, Sanqi 6 parts by weight, Rose flower 4 parts by weight, Zihua Diding 2 parts by weight, Pugongying 6 parts by weight, Fanle 6 parts by weight, Gushugu 14 parts by weight, Liangmianzhen 5 parts by weight, Qinghao 10 parts by weight, Mazi Xian 4 parts by weight, Baogai Cao 2 parts by weight, wash with clean water, dry naturally; use a pulverizer to crush to an average particle size of about 0.5 mm respectively; mix evenly to obtain mixed powder. Add 5 times the weight of mineral water to the mixed powder, boil to 100℃, maintain for 2 hours, and cool to room temperature naturally; filter out the filter residue to obtain the clear plant extract 11.

[0073] Preparation of plant extract 12: Refer to patent CN1706449B, take Sangjisheng 9 parts by weight, Shanjisheng 9 parts by weight, Baiji 6 parts by weight, Baihe 6 parts by weight, Pipa leaf 3 parts by weight, Cidai 3 parts by weight, wash with clean water, dry naturally; use a pulverizer to crush to an average particle size of about 0.5 mm respectively; mix evenly to obtain mixed powder. Add 5 times the weight of mineral water to the mixed powder, boil to 100℃, maintain for 2 hours, and cool to room temperature naturally; filter out the filter residue to obtain the clear plant extract 12.

[0074] Example 3, test of anti-black spot function of high-performance nylon and other fabrics Determine the antibacterial performance of fabrics treated by different methods by collecting volunteer sweat, culturing bacteria, and inoculating into fabrics to test the number and time of black spot formation.

[0075] Bacterial sampling: Collect natural flora from the axillary and back skin areas of volunteers with sterile cotton swabs, inoculate into sugar-containing rice soup nutrient solution, and obtain mixed bacterial liquid after 37℃ culture. The bacterial liquid can significantly induce black spot formation on fabrics after simulation experiment.

[0076] Volunteers include 5 healthy men and 5 women, aged 21-55 years old.

[0077] Self-made nutrient solution formula: 30 grams of rice is cooked into 300 milliliters of white porridge (rice is completely cooked), 10 grams of white sugar and 5 grams of salt are added, stirred to completely dissolve, and then commercially available mineral water (IPO) is added until 1000 milliliters, boiled for 5 minutes and cooled to room temperature, and then obtained.

[0078] The collection and testing method is as follows: At the beginning of sweating after exercise, each volunteer was saturated with sweat using three sterile cotton swabs (Yongyi, Type I / 12 cm) from each armpit and two sterile cotton swabs from each back (one from the upper left back, one from the lower left back, one from the upper right back, and one from the lower right back). The sweat was then squeezed out and combined. The sample was then mixed with 50 ml of a homemade nutrient solution. The solution was incubated at 40°C for 16 hours. The solution was diluted 10-fold with commercially available mineral water (Yibo) to obtain the test solution (one sample per volunteer's sweat, for a total of 10 samples) for the black spot test.

[0079] The fabric treatment method is as follows: (1) first treating with acid A, acid B, or no treatment; and then (2) treating with any plant extract prepared as described in Example 2.

[0080] Method for treating the fabric with acid A: Mix 900 mL of water and 100 mL of 75% ethanol (volume fraction), add 0.1 g of (E)-3-(3,4-dihydroxyphenyl)acrylic acid, and heat to 40°C to dissolve. Place a 10 cm × 10 cm piece of nylon 66 fabric in the mixture, maintain the temperature at 40°C, and soak for 30 minutes. Then remove the fabric and allow it to air dry.

[0081] To treat the fabric with acid B, mix 900 mL of water and 100 mL of 75% ethanol (volume fraction), add 0.1 g of maleic acid, and heat to 40°C to dissolve. Place a 10 cm × 10 cm piece of nylon 66 fabric in the mixture, maintain the temperature at 40°C, and soak for 30 minutes. Remove the fabric and allow it to air dry.

[0082] Next, at room temperature, the Acid A-treated, Acid B-treated, and untreated cloth pieces were completely immersed in 10 mL of any of the plant extracts prepared as described in Example 2 (controls 1-3 were replaced with an equal amount of mineral water) (with the exception of Group A4b, as shown in Table 1). The pieces were allowed to stand for 1 hour. The pieces were then removed and air-dried. The resulting cloth pieces were as shown in Table 1.

[0083] Simulated sweat formula: Take 6 g NaCl, 2 g lactic acid, and 1 g urea, dissolve them in 1000 mL mineral water, and adjust the pH to about 6 using pH test paper.

[0084] Nylon 66 (nylon 66) fabric swatches from each group, as shown in Table 1, were evenly inoculated with 0.5 mL of the test bacterial solution (each swatch in each treatment group was inoculated with the test bacterial solution prepared from the sweat of a single volunteer. Each treatment group was tested 10 times, meaning one swatch was tested for each test bacterial solution in each group) and 0.5 mL of simulated sweat. The swatches were placed in an electric constant-temperature drying oven (Model 202-0A, Tianyu Plastic Instrument Factory, Shangyu, Shaoxing) and set to 40°C. No ventilation was used during the experiment. A circular basin of water (15 cm diameter, 2 cm depth) was placed at the bottom of the oven to maintain a high relative humidity. The swatches were placed on a mesh rack above the water surface, and this experimental environment was maintained continuously for 130 hours.

[0085] During the experiment, black spot formation was recorded, including the time of appearance and area. Each cloth sheet was evenly divided into 100 1 cm x 1 cm squares. The presence of at least one black spot with a diameter ≥ 2 mm in each square was counted as 1 square centimeter of black spot area. The time at which at least one black spot with a diameter ≥ 2 mm appeared in each square (starting from the moment the cloth sheet was placed in the humid, high-temperature chamber) was counted as the time of first black spot appearance. The results were averaged (i.e., the average of all 10 cloth sheets tested with the test solution from all 10 volunteers in each group).

[0086] The results are shown in Table 1. The first appearance of black spots in Groups A4 and A4b was longer (i.e., later) than in the other groups, with statistically significant differences (P < 0.01). The black spot areas in Groups A4 and A4b at 100 hours were smaller than in the other groups, also with statistically significant differences (P < 0.01).

[0087] Among them, groups A1 to A12 and group A4b were treated with (E)-3-(3,4-dihydroxyphenyl)acrylic acid; groups B1 to B12 were treated with maleic acid; and groups C4, C9, and C10 were not treated with acid.

[0088] The first appearance of black spots in groups A4 and A4b was later than in group B4 (P < 0.01). The area of ​​black spots in groups A4 and A4b at 100 hours was smaller than that in group B4 (P < 0.01). In group C4, black spots first appeared earlier than in group A4 (P < 0.01). The area of ​​black spots in group C4 at 100 hours was larger than that in group A4 (P < 0.01), indicating that the effect of group C4 was poor. This indicates the importance of acid treatment; treatment with (E)-3-(3,4-dihydroxyphenyl)acrylic acid is likely to be effective; treatment with maleic acid is ineffective.

[0089] In groups A1 to A12, and A4b: Extract 1 was based on Extract 4 without mistletoe, Bletilla striata, and Polygonum multiflorum; Extract 2 was based on Extract 4 without Viola yedoensis and Portulaca oleracea; Extract 5 used some of the raw materials of Extract 4; Extract 6 used some of the raw materials of Extract 4; Extract 7 was based on Extract 4 without Artemisia annua and Ailanthus altissima leaves; Extract 8 was based on Extract 4 without Hedyotis diffusa and Leonurus japonicus; but the test results were all worse than those of groups A4 and A4b (P<0.01), indicating the importance of the raw material components of Extract 4, which are indispensable and unpredictable.

[0090] Extract 3 was prepared by changing the raw material ratio of Extract 4, and the test effect was also worse than that of Extract 4 (P<0.01), indicating the importance and unpredictability of the raw material ratio in Extract 4.

[0091] Extracts 9-12 were mainly obtained based on the existing technology, and the test results were also worse than that of extract 4 (P<0.01), indicating the advantages and unpredictability of the present invention over the existing technology.

[0092] This shows the antibacterial advantage of the cloth pieces treated with (E)-3-(3,4-dihydroxyphenyl)acrylic acid combined with plant extract 4 in groups A4 and A4b.

[0093] Table 1. Treatment methods and experimental results of each group

[0094]

[0095] Example 4: Rinse test of high-performance nylon and other fabrics After the cloth pieces from each group described in Example 3 were placed in a humid, high-temperature oven for 130 hours, the pieces were removed and rinsed with a dilute sodium hypochlorite solution for 5 minutes, followed by gentle washing with clean water. The results showed that the black spots on the cloth pieces in Groups A4 and A4b had completely disappeared, meaning they were no longer visible to the naked eye. However, the black spots on the cloth pieces in the other groups had not completely disappeared, meaning that some visible black spots remained.

[0096] This shows the antibacterial and antimicrobial advantages of the cloth pieces treated with (E)-3-(3,4-dihydroxyphenyl)acrylic acid combined with plant extract 4 in groups A4 and A4b.

[0097] Example 5. Preparation of antibacterial fabric containing high-performance nylon fabric The fabric treated with (E)-3-(3,4-dihydroxyphenyl)acrylic acid and plant extract 4 in Example 3 was made into outdoor mountaineering clothing using a conventional textile method; outdoor mountaineering clothing containing high-performance nylon fabric was obtained.

[0098] The fabric treated with (E)-3-(3,4-dihydroxyphenyl)acrylic acid and plant extract 4 in Example 3 was made into yoga pants using a conventional textile method; yoga pants containing high-performance nylon fabric were obtained.

[0099] The fabric treated with (E)-3-(3,4-dihydroxyphenyl)acrylic acid and plant extract 4 in Example 3 was made into medical protective clothing using a conventional textile method; a medical protective clothing containing high-performance nylon fabric was obtained.

[0100] The fabric treated with (E)-3-(3,4-dihydroxyphenyl)acrylic acid and plant extract 4 in Example 3 was made into sports bras using a conventional textile method to obtain sports bras containing high-performance nylon fabrics.

[0101] The fabric treated with (E)-3-(3,4-dihydroxyphenyl)acrylic acid and plant extract 4 in Example 3 was made into a car seat cover using a conventional textile method to obtain a car seat cover containing high-performance nylon fabric.

[0102] The fabric treated with (E)-3-(3,4-dihydroxyphenyl)acrylic acid and plant extract 4 in Example 3 was made into food processing protective clothing using a conventional textile method; thus, food processing protective clothing containing high-performance nylon fabric was obtained.

[0103] The fabric treated with (E)-3-(3,4-dihydroxyphenyl)acrylic acid and plant extract 4 in Example 3 was made into a household sofa cover using a conventional textile method; a household sofa cover containing high-performance nylon fabric was obtained.

[0104] The fabric treated with (E)-3-(3,4-dihydroxyphenyl)acrylic acid and plant extract 4 in Example 3 was made into antibacterial socks using a conventional textile method; antibacterial socks containing high-performance nylon fabric were obtained.

[0105] The fabric treated with (E)-3-(3,4-dihydroxyphenyl)acrylic acid and plant extract 4 in Example 3 was made into cold chain logistics protective clothing using a conventional textile method; cold chain logistics protective clothing containing high-performance nylon fabric was obtained.

[0106] The fabric treated with (E)-3-(3,4-dihydroxyphenyl)acrylic acid and plant extract 4 in Example 3 was made into cycling clothes using a conventional textile method; a cycling clothes containing high-performance nylon fabric was obtained.

[0107] The fabric treated with (E)-3-(3,4-dihydroxyphenyl)acrylic acid and plant extract 4 in Example 3 was made into a field tent using a conventional weaving method; a field tent containing high-performance nylon fabric was obtained.

[0108] The cloth treated with the plant extract 4 of (E)-3-(3,4-dihydroxyphenyl) acrylic acid in Example 3 was manufactured into a diving suit using a general textile method; and a diving suit containing a high-performance nylon fabric was obtained.

Claims

1. A plant extract, characterized in that: The plant extract is prepared by the following method: Take 2.5-3.5 parts by weight of Viola yedoensis, 2.5-3.5 parts by weight of Portulaca oleracea, 2.5-3.5 parts by weight of Artemisia annua, 2.5-3.5 parts by weight of Ailanthus altissima leaves, 2.5-3.5 parts by weight of Hedyotis diffusa, 0.7-1.3 parts by weight of Leonurus japonicus, 0.7-1.3 parts by weight of Mistletoe, 0.7-1.3 parts by weight of Bletilla striata, 0.7-1.3 parts by weight of Paridis chinensis, and 0.7-1.3 parts by weight of Opuntia coccinellae, grind them, mix them evenly, boil them in water, and filter them to obtain the product.

2. An antibacterial fabric, characterized in that: The antibacterial fabric is obtained by the following method: (1) treating the fabric with (E)-3-(3,4-dihydroxyphenyl) acrylic acid; then (2) treating the fabric treated in step (1) with a plant extract; The plant extract is prepared by the following method: taking 2.5-3.5 parts by weight of Viola yedoensis, 2.5-3.5 parts by weight of Portulaca oleracea, 2.5-3.5 parts by weight of Artemisia annua, 2.5-3.5 parts by weight of Ailanthus altissima leaves, 2.5-3.5 parts by weight of Hedyotis diffusa, 0.7-1.3 parts by weight of Leonurus japonicus, 0.7-1.3 parts by weight of Mistletoe, 0.7-1.3 parts by weight of Bletilla striata, 0.7-1.3 parts by weight of Paridis chinensis, and 0.7-1.3 parts by weight of Opuntia coccinella truncatula, crushing and mixing, boiling in water, and filtering to obtain the plant extract.

3. The antibacterial fabric according to claim 2, wherein: The fabric is nylon 66.

4. The antibacterial fabric according to claim 2, wherein: The antibacterial fabric is obtained by the following method: (1) Mix 9 volumes of water and 1 volume of 75% ethanol, add about 0.01% of the total mass of the mixed solution (E)-3-(3,4-dihydroxyphenyl) acrylic acid, and immerse the cloth in it. Maintain 40℃ and soak for 30 minutes, remove the cloth and let it air dry; (2) completely immersing the cloth treated in step (1) into the plant extract, taking out the cloth and allowing it to air dry naturally; The plant extract is prepared by the following method: taking 3 parts by weight of Viola yedoensis, 3 parts by weight of Portulaca oleracea, 3 parts by weight of Artemisia annua, 3 parts by weight of Ailanthus altissima leaves, 3 parts by weight of Hedyotis diffusa, 1 part by weight of Leonurus japonicus, 1 part by weight of Mistletoe, 1 part by weight of Bletilla striata, 1 part by weight of Paridis septempunctata, and 1 part by weight of Opuntia coccinella truncatula, crushing and mixing to obtain a mixed powder, adding 5 times the weight of water of the mixed powder, boiling for 2 hours, filtering and removing the filter residue, and obtaining the obtained product.

5. The antibacterial fabric according to claim 2, wherein: The antibacterial fabric is obtained by the following method: (1) Mix 900 mL of water and 100 mL of 75% ethanol, add 0.1 g of (E)-3-(3,4-dihydroxyphenyl) acrylic acid, and heat to 40°C to dissolve; place nylon 66 fabric in the mixture, maintain 40°C and soak for 30 minutes, take it out, and let it air dry naturally; (2) completely immersing the cloth treated in step (1) into the plant extract, taking out the cloth and allowing it to air dry naturally; The plant extract is prepared by the following method: 3 parts by weight of Viola yedoensis, 3 parts by weight of Portulaca oleracea, 3 parts by weight of Artemisia annua, 3 parts by weight of Ailanthus altissima leaves, 3 parts by weight of Hedyotis diffusa, 1 part by weight of Leonurus japonicus, 1 part by weight of Mistletoe, 1 part by weight of Bletilla striata, 1 part by weight of Paridis septempunctata, and 1 part by weight of Opuntia coccinellae are crushed and mixed to obtain a mixed powder, 5 times the weight of water of the mixed powder is added, the mixture is boiled for 2 hours, and the residue is removed by filtration. The fabric is nylon 66.

6. An antibacterial fabric, comprising the antibacterial fabric according to any one of claims 2 to 5; The antibacterial fabric is selected from any one of the following: sports underwear, yoga pants, cycling clothes, outdoor mountaineering clothes, diving suits, antibacterial socks, field tents, sleeping bag liners, helmet cushioning pads, combat boot liners, backpack webbing, belts, medical protective clothing, masks, medical head masks, medical goggles straps, bedspreads, cushion fabrics, car seat covers, subway seat covers, high-speed rail seat covers, airplane seat covers, household sofa covers, food processing protective clothing, and cold chain logistics protective clothing.

7. The antibacterial fabric according to claim 6, characterized in that The antibacterial fabric is sports underwear, yoga pants, cycling clothes or outdoor mountaineering clothes.

8. The antibacterial fabric according to claim 6, wherein The antibacterial fabric is medical protective clothing, a mask or a medical head cover.

9. The antibacterial fabric according to claim 6, wherein The antibacterial fabric is a car seat cover, a subway seat cover, a high-speed rail seat cover, an airplane seat cover, a household sofa cover, a food processing protective clothing or a cold chain logistics protective clothing.

10. A method for preparing an antibacterial fabric, characterized in that: The preparation method of the antibacterial fabric comprises: (1) treating the fabric with (E)-3-(3,4-dihydroxyphenyl) acrylic acid; then (2) treating the fabric treated in step (1) with a plant extract; The plant extract is prepared by the following method: taking 2.5-3.5 parts by weight of Viola yedoensis, 2.5-3.5 parts by weight of Portulaca oleracea, 2.5-3.5 parts by weight of Artemisia annua, 2.5-3.5 parts by weight of Ailanthus altissima leaves, 2.5-3.5 parts by weight of Hedyotis diffusa, 0.7-1.3 parts by weight of Leonurus japonicus, 0.7-1.3 parts by weight of Mistletoe, 0.7-1.3 parts by weight of Bletilla striata, 0.7-1.3 parts by weight of Paridis chinensis, and 0.7-1.3 parts by weight of Opuntia coccinellae, crushing and mixing, boiling in water, and filtering to obtain the plant extract; The fabric is nylon 66.

11. The method for preparing the antibacterial fabric according to claim 10, wherein: The preparation method of the antibacterial fabric is as follows: (1) Mix 9 volumes of water and 1 volume of 75% ethanol (volume fraction), add about 0.005%-0.02% of the total mass of the mixed solution (E)-3-(3,4-dihydroxyphenyl) acrylic acid, and immerse the fabric in it. Maintain 35-45℃ and soak for 20-40 minutes, remove the cloth and let it air dry; (2) completely immersing the cloth treated in step (1) into the plant extract, taking out the cloth and allowing it to air dry naturally; The plant extract is prepared by the following method: 3 parts by weight of Viola yedoensis, 3 parts by weight of Portulaca oleracea, 3 parts by weight of Artemisia annua, 3 parts by weight of Ailanthus altissima leaves, 3 parts by weight of Hedyotis diffusa, 1 part by weight of Leonurus japonicus, 1 part by weight of Mistletoe, 1 part by weight of Bletilla striata, 1 part by weight of Paridis septempunctata, and 1 part by weight of Opuntia coccinellae are ground, mixed, boiled in water, and filtered to obtain the obtained product; The fabric is nylon 66.

Images