Antibacterial high-performance cloth 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 application belongs to the technical field of antibacterial high-performance fabrics, and particularly relates to a high-performance nylon fabric with antibacterial function and a preparation process and application of the fabric. BACKGROUND

[0002] Nylon is a kind of representative synthetic fiber, which has been widely used in clothing, industrial manufacturing and medical health industries since it was industrialized in the mid-20th century due to its excellent mechanical strength, wear resistance, chemical corrosion resistance and excellent processing adaptability. Among them, nylon 66 has more advantages in comprehensive performance than ordinary nylon 6 due to its shorter carbon chain and higher crystallinity in the molecular structure, and is particularly suitable for functional textile products with strict performance requirements.

[0003] The main features of nylon 66 include: excellent mechanical properties: high tensile strength and good elongation at break, which can meet the requirements of high load working conditions such as outdoor sports, military protection and industrial use; excellent wear resistance and resilience: the fabric can maintain stable shape under repeated friction or frequent wearing and taking off conditions, and is suitable for fields such as sportswear and functional underwear; high heat resistance: the melting point is close to 250℃, which can withstand high temperature ironing and industrial heat setting treatment; low moisture absorption and excellent dyeing performance: compared with nylon 6, it is easier to realize stable modification, and various functional components can be added without losing comfort.

[0004] In recent years, with the change of consumption concept and lifestyle, the market demand for high-performance nylon continues to rise. Especially in the following scenarios, there is a higher demand for nylon 66 materials with high strength and multiple functions (such as antibacterial, quick-drying, and wash-resistant): medical and public health: high-risk environments such as hospitals and clinics require medical clothing to have antibacterial, wash-resistant, and comfortable properties. Nylon 66 has application advantages in surgical gowns, protective clothing, and medical bed linen; police protective equipment: in extreme environments, camouflage clothing, tactical vests, and sleeping bag liners require stronger wear resistance, tear resistance, and long-term antibacterial ability; high-end sports and outdoor products: cycling clothes, mountaineering clothes, diving clothes, etc. need to balance high-elastic wear resistance and antibacterial and deodorant performance, and ensure skin safety; close-fitting clothing and baby products: functional underwear, antibacterial underwear, baby carriers, and breastfeeding products emphasize softness and safety, and nylon 66 has high skin-fitting and stability adaptation; home and transportation textiles: sand release, car seat covers, rail transit seat fabrics, mattress cover fabrics, and other fabrics that come into contact with the human body for a long time gradually require "persistent antibacterial and easy to clean"; food processing and cold chain logistics: working clothes, aprons, and sleeves are often in humid and highly polluted conditions. Wash-resistant antibacterial fabric can reduce the risk of cross-contamination; aerospace and rail transportation: in conditions of high contact density and long-term use, flame-retardant, antibacterial, and environmentally friendly performance become key indicators; smart wear and functional textiles: nylon 66 is suitable as a substrate for integrated antibacterial, conductive, or sensing functions due to its high strength and good film-forming properties.

[0005] However, traditional nylon still has deficiencies in functional expansion, especially in improving antibacterial performance. Conventional finishing processes have limited antibacterial effect, poor wash resistance, and heavy metal ion precipitation. Most nylon fabrics on the market are prone to black deposition spots in the back area that cannot be removed by ordinary washing in the case of high temperature and sweating in summer, lack of timely washing, or poor ventilation. Therefore, developing a new type of fabric with high-performance substrates (such as nylon 66) and stable, broad-spectrum, and wash-resistant antibacterial functions has become a technical frontier and industrial hotspot in the field of functional textile materials. SUMMARY

[0006] Based on certain theoretical support, the inventors have developed a high-performance nylon with excellent antibacterial activity through repeated testing and verification, thereby completing the present application.

[0007] In a first aspect of the present application, a plant extract is provided, which is prepared by the following process steps: Take purple flower Diding 2.7-3.3 parts by weight, 2.7-3.3 parts by weight of spiny amaranth, 0.8-1.2 parts by weight of green, 2.7-3.3 parts by weight of chinaberry leaf, 0.8-1.2 parts by weight of white flower snake tongue grass, 2.7-3.3 parts by weight of motherwort, 0.8-1.2 parts by weight of mistletoe, 0.8-1.2 parts by weight of bletilla striata, 0.8-1.2 parts by weight of seven leaf one branch flower, 2.7-3.3 parts by weight of cactus, grinding, mixing evenly, boiling in water, filtering, getting.

[0008] In some embodiments of the present application, the preparation method of the plant extract is the same as any of the preparation methods of the plant extract of Example 2 of the present application. In some embodiments of the present application, the preparation method of the plant extract is the same as the preparation method of the plant extract 4 of Example 2 of the present application.

[0009] In some embodiments of the present application, the plant extract is prepared by the following process steps: Take purple flower Diding 3 parts by weight, 3 parts by weight of spiny amaranth, 1 part by weight of green, 3 parts by weight of chinaberry leaf, 1 part by weight of white flower snake tongue grass, 3 parts by weight of motherwort, 1 part by weight of mistletoe, 1 part by weight of bletilla striata, 1 part by weight of seven leaf one branch flower, 3 parts by weight of cactus, wash with clean water, dry naturally; using a grinder to grind to an average particle size of about 0.8 mm respectively; uniformly mixed to obtain a mixed powder; add 4 times the weight of mineral water to the mixed powder, boil to 100℃, maintain for 1 hour, naturally cool to room temperature; filter out the residue, getting.

[0010] In the second aspect of the present application, an antibacterial fabric is provided, which is treated by the following process steps: (1) treating the fabric with DL-malic acid; then (2) treating the fabric treated in step (1) with a plant extract; The plant extract is prepared by the following process steps: taking 2.7-3.3 parts by weight of purple flower Diding, 2.7-3.3 parts by weight of spiny amaranth, 0.8-1.2 parts by weight of green, 2.7-3.3 parts by weight of chinaberry leaf, 0.8-1.2 parts by weight of white flower snake tongue grass, 2.7-3.3 parts by weight of motherwort, 0.8-1.2 parts by weight of mistletoe, 0.8-1.2 parts by weight of bletilla striata, 0.8-1.2 parts by weight of seven leaf one branch flower, 2.7-3.3 parts by weight of cactus, grinding, mixing evenly, boiling in water, filtering, getting.

[0011] In some embodiments of the present application, the fabric is nylon. In some embodiments of the present application, the fabric is nylon 66. In some embodiments of the present application, the fabric is nylon 66. In some embodiments of the present application, the fabric is polyamide-66. In some embodiments of the present application, the fabric is polyhexamethylene adipamide.

[0012] In some embodiments of the present application, the treatment with the plant extract is to immerse the fabric treated in step (1) into the plant extract completely, take out the fabric, and dry naturally. In some embodiments of the present application, the treatment with the plant extract is to immerse the fabric treated in step (1) into the plant extract completely, stand still, take out the fabric, and dry naturally. In some embodiments of the present application, the treatment with the plant extract is to immerse the fabric treated in step (1) into the plant extract completely, stand still for 0.5-1.5 hours, take out the fabric, and dry naturally. In some embodiments of the present application, the treatment with the plant extract is to immerse the fabric treated in step (1) into the plant extract completely, stand still for 1 hour, take out the fabric, and dry naturally.

[0013] In some embodiments of the present application, the antibacterial fabric is obtained by the following process steps: (1) treating the fabric with DL-malic acid; and then (2) treating the fabric treated in step (1) with a plant extract; The plant extract is prepared by the following process steps: taking 2.7-3.3 parts by weight of Herba Violae, 2.7-3.3 parts by weight of Herba Portulacae, 0.8-1.2 parts by weight of Herba Artemisiae, 2.7-3.3 parts by weight of Leaf of Ailanthus altissima, 0.8-1.2 parts by weight of Herba Sarcandrae, 2.7-3.3 parts by weight of Herba Leonuri, 0.8-1.2 parts by weight of Sempervivi, 0.8-1.2 parts by weight of Rhizoma Bletillae, and 2.7-3.3 parts by weight of Cactus, grinding and mixing uniformly to obtain a mixture, boiling in water, and filtering to obtain the plant extract; The fabric is nylon 66.

[0014] Nylon 66, also known as nylon 66, polyamide-66 or polyhexamethylene adipamide, is a kind of synthetic material prepared by condensation polymerization of hexamethylene diamine and adipic acid. This material has excellent comprehensive performance, high strength, good rigidity, strong impact resistance, and properties such as oil resistance, chemical corrosion resistance, wear resistance, self-lubrication, etc., especially outstanding in hardness, heat resistance and anti-cree. At the same time, its raw material source is wide and the price is relatively low, so it is widely used in industrial manufacturing, clothing, decoration and engineering plastics fields.

[0015] In some embodiments of the present application, the plant extract is prepared by the following process steps: Take 3 parts by weight of purple violet, 3 parts by weight of spiny amaranth, 1 part by weight of green wormwood, 3 parts by weight of ailanthus leaf, 1 part by weight of white flower snake tongue grass, 3 parts by weight of motherwort, 1 part by weight of mistletoe, 1 part by weight of bletilla striata, 1 part by weight of seven-leaf branch flower, and 3 parts by weight of cactus, crush and mix them evenly, boil in water, filter, and you get it.

[0016] In some embodiments of the present application, 1-10 times the weight of the mixed powder is added to the water and boiled. In some embodiments of the present application, 2-6 times the weight of the mixed powder is added to the water and boiled. In some embodiments of the present application, 4 times the weight of the mixed powder is added to the water and boiled. In some embodiments of the present application, it is boiled for 0.5-4 hours. In some embodiments of the present application, it is boiled for 0.5-1.5 hours.

[0017] In some embodiments of the present application, 9 volumes of water and 1 volume of 75% ethanol are mixed, and 0.005%-0.2% of DL-malic acid is added to the total mass of the mixed solution. In some embodiments of the present application, 9 volumes of water and 1 volume of 75% ethanol are mixed, and 0.005%-0.02% of DL-malic acid is added to the total mass of the mixed solution. In some embodiments of the present application, 9 volumes of water and 1 volume of 75% ethanol are mixed, and 0.01% of DL-malic acid is added to the total mass of the mixed solution.

[0018] In some embodiments of the present application, the plant extract is prepared by the following process steps: Take 3 parts by weight of purple violet, 3 parts by weight of spiny amaranth, 1 part by weight of green wormwood, 3 parts by weight of ailanthus leaf, 1 part by weight of white flower snake tongue grass, 3 parts by weight of motherwort, 1 part by weight of mistletoe, 1 part by weight of bletilla striata, 1 part by weight of seven-leaf branch flower, and 3 parts by weight of cactus, crush and mix them evenly, boil in water, filter, and you get it.

[0019] In some embodiments of the present application, the plant extract is prepared by the following process steps: Take 3 parts by weight of purple violet, 3 parts by weight of spiny amaranth, 1 part by weight of green wormwood, 3 parts by weight of ailanthus leaf, 1 part by weight of white flower snake tongue grass, 3 parts by weight of motherwort, 1 part by weight of mistletoe, 1 part by weight of bletilla striata, 1 part by weight of seven-leaf branch flower, and 3 parts by weight of cactus, crush and mix them evenly, boil in water, filter, and you get it.

[0020] In some embodiments of the present application, the plant extract is prepared by the following process steps: Take 3 parts by weight of purple violet, 3 parts by weight of spiny amaranth, 1 part by weight of green wormwood, 3 parts by weight of ailanthus altissima, 1 part by weight of white flower snake tongue grass, 3 parts by weight of motherwort, 1 part by weight of mistletoe, 1 part by weight of bletilla striata, 1 part by weight of seven-leaf one-stem flower, and 3 parts by weight of cactus, crush and mix them to obtain a mixed powder. Add 4 times the weight of water to the mixed powder, and boil for 0.5-1.5 hours. Filter out the residue to obtain the plant extract.

[0021] In some embodiments of the present application, the plant extract is prepared by the following process steps: Take 3 parts by weight of purple violet, 3 parts by weight of spiny amaranth, 1 part by weight of green wormwood, 3 parts by weight of ailanthus altissima, 1 part by weight of white flower snake tongue grass, 3 parts by weight of motherwort, 1 part by weight of mistletoe, 1 part by weight of bletilla striata, 1 part by weight of seven-leaf one-stem flower, and 3 parts by weight of cactus, crush and mix them to obtain a mixed powder. Add 4 times the weight of water to the mixed powder, and boil for 0.5-1.5 hours. Filter out the residue to obtain the plant extract.

[0022] In some embodiments of the present application, the plant extract is prepared by the following process steps:

[0023] In some embodiments of the present application, the plant extract is prepared by the following process steps: Take 3 parts by weight of purple violet, 3 parts by weight of spiny amaranth, 1 part by weight of green wormwood, 3 parts by weight of ailanthus altissima, 1 part by weight of white flower snake tongue grass, 3 parts by weight of motherwort, 1 part by weight of mistletoe, 1 part by weight of bletilla striata, 1 part by weight of seven-leaf one-stem flower, and 3 parts by weight of cactus, wash them with clean water and dry naturally. Crush them to an average particle size of about 0.8 mm using a crusher. Mix them uniformly to obtain a mixed powder. Add 4 times the weight of mineral water to the mixed powder, and boil to 100℃ for 1 hour. Cool naturally to room temperature. Filter out the residue to obtain the plant extract.

[0024] In some embodiments of the present application, the DL-malic acid treatment method is as follows: mix 9 volumes of water and 1 volume of 75% ethanol (volume fraction), add 0.005%-0.02% DL-malic acid based on the total mass of the mixed solution, immerse the cloth in it, maintain 35-45℃ and soak for 20-40 minutes, take out the cloth, and dry naturally. In some embodiments of the present application, the DL-malic acid treatment method is as follows: mix 9 volumes of water and 1 volume of 75% ethanol (volume fraction), add 0.005%-0.02% DL-malic acid based on the total mass of the mixed solution, immerse the cloth in it, maintain 40℃ and soak for 30 minutes, take out the cloth, and dry naturally.

[0025] In some embodiments of the present application, the method of treating the DL-malic acid is as follows: 9 volumes of water and 1 volume of 75% ethanol (volume fraction) are mixed, 0.01% of DL-malic acid is added to the total mass of the mixed solution, the cloth is immersed therein, maintained at 35-45℃ and soaked for 20-40 minutes, the cloth is taken out and naturally air-dried.

[0026] In some embodiments of the present application, the method of treating the DL-malic acid is as follows: 900 mL of water and 100 mL of volume fraction 75% ethanol are mixed, 0.1 g of DL-malic acid is added, heated to 40℃ to dissolve; the nylon 66 cloth is placed therein, maintained at 40℃ and soaked for 30 minutes, taken out and naturally air-dried.

[0027] In some embodiments of the present application, the purple violet is a dried whole plant. In some embodiments of the present application, the spiny amaranth is a dried whole plant. In some embodiments of the present application, the artemisia is a dried whole plant. In some embodiments of the present application, the ailanthus altissima leaf is a dried leaf of ailanthus altissima. In some embodiments of the present application, the oldenlandia is a dried whole plant. In some embodiments of the present application, the motherwort is a dried whole plant. In some embodiments of the present application, the viscum is a dried whole plant. In some embodiments of the present application, the bletilla is a dried whole plant. In some embodiments of the present application, the seven-bark is a dried whole plant. In some embodiments of the present application, the cactus is a dried whole plant of the cactus family Opuntia dillenii.

[0028] In some embodiments of the present application, the antibacterial cloth is obtained by the following process steps: (1) 9 volumes of water and 1 volume of 75% ethanol (volume fraction) are mixed, 0.005%-0.02% of DL-malic acid is added to the total mass of the mixed solution, the cloth is immersed therein, maintained at 35-45℃ and soaked for 20-40 minutes, the cloth is taken out and naturally air-dried; (2) the cloth treated in step (1) is treated with a plant extract; The plant extract is prepared by the following process steps: 2.7-3.3 parts by weight of purple violet, 2.7-3.3 parts by weight of spiny amaranth, 0.8-1.2 parts by weight of artemisia, 2.7-3.3 parts by weight of ailanthus altissima leaf, 0.8-1.2 parts by weight of oldenlandia, 2.7-3.3 parts by weight of motherwort, 0.8-1.2 parts by weight of viscum, 0.8-1.2 parts by weight of bletilla, 0.8-1.2 parts by weight of seven-bark, and 2.7-3.3 parts by weight of cactus are crushed and uniformly mixed, boiled in water, and filtered to obtain.

[0029] In some embodiments of the present application, the fabric is nylon. In some embodiments of the present application, the fabric is nylon 66. In some embodiments of the present application, the fabric is nylon 66.

[0030] In some embodiments of the present application, the antibacterial fabric is obtained by the following process steps: (1) mixing 9 volumes of water and 1 volume of 75% ethanol (volume fraction), adding DL-malic acid accounting for about 0.005%-0.02% of the total mass of the mixed solution, immersing the fabric therein, maintaining 35-45℃ and soaking for 20-40 minutes, taking out the fabric piece, and naturally air-drying; (2) treating the fabric treated in step (1) with a plant extract; The plant extract is prepared by the following process steps: taking 2.7-3.3 parts by weight of purple flower ground ivy, 2.7-3.3 parts by weight of spadeleaf, 0.8-1.2 parts by weight of artemisia, 2.7-3.3 parts by weight of jatropha leaf, 0.8-1.2 parts by weight of white flower snake tongue grass, 2.7-3.3 parts by weight of motherwort, 0.8-1.2 parts by weight of mistletoe, 0.8-1.2 parts by weight of bletilla striata, 0.8-1.2 parts by weight of paris polyphylla, and 2.7-3.3 parts by weight of cactus, crushing, mixing uniformly, boiling in water, and filtering to obtain.

[0031] In some embodiments of the present application, the antibacterial fabric is obtained by the following process steps: (1) mixing 9 volumes of water and 1 volume of 75% ethanol (volume fraction), adding DL-malic acid accounting for about 0.005%-0.02% of the total mass of the mixed solution, immersing the fabric therein, maintaining 35-45℃ and soaking for 20-40 minutes, taking out the fabric piece, and naturally air-drying; (2) immersing the fabric treated in step (1) completely into a plant extract, taking out the fabric piece, and naturally air-drying; The plant extract is prepared by the following process steps: taking 2.7-3.3 parts by weight of purple flower ground ivy, 2.7-3.3 parts by weight of spadeleaf, 0.8-1.2 parts by weight of artemisia, 2.7-3.3 parts by weight of jatropha leaf, 0.8-1.2 parts by weight of white flower snake tongue grass, 2.7-3.3 parts by weight of motherwort, 0.8-1.2 parts by weight of mistletoe, 0.8-1.2 parts by weight of bletilla striata, 0.8-1.2 parts by weight of paris polyphylla, and 2.7-3.3 parts by weight of cactus, crushing, mixing uniformly, boiling in water, and filtering to obtain.

[0032] In some embodiments of the present application, the antibacterial fabric is obtained by the following process steps: (1) mixing 9 volumes of water and 1 volume of 75% ethanol (volume fraction), adding about 0.01% of DL-malic acid based on the total mass of the mixed solution, immersing the cloth in it, maintaining 40°C and soaking for 30 minutes, taking out the cloth piece, and naturally air-drying; (2) completely immersing the cloth treated in the step (1) into a plant extract solution, taking out the cloth piece, and naturally air-drying; The plant extract solution is prepared by the following process steps: taking 3 parts by weight of purple flower ground ivy, 3 parts by weight of spadeleaf, 1 part by weight of green wormwood, 3 parts by weight of ailanthus leaf, 1 part by weight of white flower snake tongue, 3 parts by weight of motherwort, 1 part by weight of taxillus, 1 part by weight of bletilla striata, 1 part by weight of paris polyphylla, and 3 parts by weight of cactus, crushing, mixing, obtaining mixed powder, adding 4 times the weight of water of the mixed powder, boiling for 1 hour, and filtering to remove the filter residue, thereby obtaining the plant extract solution.

[0033] In some embodiments of the present application, the antibacterial cloth is obtained by the following process steps: (1) mixing 900 mL of water and 100 mL of 75% ethanol (volume fraction), adding 0.1 g of DL-malic acid, heating to 40°C to dissolve, and placing nylon 66 cloth in it, maintaining 40°C and soaking for 30 minutes, taking out, and naturally air-drying; (2) completely immersing the cloth treated in the step (1) into a plant extract solution, taking out the cloth piece, and naturally air-drying; The plant extract solution is prepared by the following process steps: taking 3 parts by weight of purple flower ground ivy, 3 parts by weight of spadeleaf, 1 part by weight of green wormwood, 3 parts by weight of ailanthus leaf, 1 part by weight of white flower snake tongue, 3 parts by weight of motherwort, 1 part by weight of taxillus, 1 part by weight of bletilla striata, 1 part by weight of paris polyphylla, and 3 parts by weight of cactus, crushing, mixing, obtaining mixed powder, adding 4 times the weight of water of the mixed powder, boiling for 1 hour, and filtering to remove the filter residue, thereby obtaining the plant extract solution.

[0034] In some embodiments of the present application, the antibacterial cloth is obtained by the following process steps: (1) mixing 900 mL of water and 100 mL of 75% ethanol (volume fraction), adding 0.1 g of DL-malic acid, heating to 40°C to dissolve, and placing nylon 66 cloth in it, maintaining 40°C and soaking for 30 minutes, taking out, and naturally air-drying; (2) completely immersing the cloth treated in the step (1) into a plant extract solution, taking out the cloth piece, and naturally air-drying; The plant extract is prepared by the following process steps: taking 3 parts by weight of purple flower ground ivy, 3 parts by weight of spade heron, 1 part by weight of green wormwood, 3 parts by weight of ailanthus leaf, 1 part by weight of white flower snake tongue, 3 parts by weight of motherwort, 1 part by weight of mistletoe, 1 part by weight of bletilla striata, 1 part by weight of seven-leaf one-stemmed flower, and 3 parts by weight of cactus, crushing, mixing, obtaining mixed powder, adding 4 times the weight of water of the mixed powder, boiling for 1 hour, filtering out the filter residue, and obtaining. The cloth is polyamide 66.

[0035] In some embodiments of the present application, the antibacterial cloth is prepared by any method described in Example 3. In some embodiments of the present application, the antibacterial cloth is prepared by the method described in group A4 of Table 1 of Example 3. In some embodiments of the present application, the antibacterial cloth is prepared by the method of treating the cloth piece with acid A and then treating with plant extract 4.

[0036] In a third aspect of the present application, a method for preparing an antibacterial cloth is provided, wherein the method is as described in any one of the second aspect of the present application.

[0037] In some embodiments of the present application, the method for preparing the antibacterial cloth comprises: (1) treating the cloth with DL-malic acid; and then (2) treating the cloth treated in step (1) with a plant extract; The plant extract is prepared by the following process steps: taking 2.7-3.3 parts by weight of purple flower ground ivy, 2.7-3.3 parts by weight of spade heron, 0.8-1.2 parts by weight of green wormwood, 2.7-3.3 parts by weight of ailanthus leaf, 0.8-1.2 parts by weight of white flower snake tongue, 2.7-3.3 parts by weight of motherwort, 0.8-1.2 parts by weight of mistletoe, 0.8-1.2 parts by weight of bletilla striata, 0.8-1.2 parts by weight of seven-leaf one-stemmed flower, and 2.7-3.3 parts by weight of cactus, crushing, mixing, boiling in water, and filtering to obtain.

[0038] In some embodiments of the present application, the method for preparing the antibacterial cloth comprises: (1) treating the cloth with DL-malic acid; and then (2) treating the cloth treated in step (1) with a plant extract; The plant extract is prepared by the following process steps: taking 2.7-3.3 parts by weight of purple flower ground ivy, 2.7-3.3 parts by weight of spade heron, 0.8-1.2 parts by weight of green wormwood, 2.7-3.3 parts by weight of ailanthus leaf, 0.8-1.2 parts by weight of white flower snake tongue grass, 2.7-3.3 parts by weight of motherwort, 0.8-1.2 parts by weight of mistletoe, 0.8-1.2 parts by weight of bletilla striata, 0.8-1.2 parts by weight of paris polyphylla, and 2.7-3.3 parts by weight of cactus, crushing, mixing uniformly, boiling in water, filtering, and obtaining. The cloth is polyamide 66.

[0039] In some embodiments of the present application, the preparation method of the antibacterial cloth is: (1) mixing 9 parts by volume of water and 1 part by volume of 75% ethanol (volume fraction), adding about 0.005%-0.02% of DL-malic acid based on the total mass of the mixed solution, immersing the cloth in it, maintaining 35-45℃ and soaking for 20-40 minutes, taking out the cloth, and naturally air-drying; (2) completely immersing the cloth treated in step (1) into the plant extract, taking out the cloth, and naturally air-drying; The plant extract is prepared by the following process steps: taking 2.7-3.3 parts by weight of purple flower ground ivy, 2.7-3.3 parts by weight of spade heron, 0.8-1.2 parts by weight of green wormwood, 2.7-3.3 parts by weight of ailanthus leaf, 0.8-1.2 parts by weight of white flower snake tongue grass, 2.7-3.3 parts by weight of motherwort, 0.8-1.2 parts by weight of mistletoe, 0.8-1.2 parts by weight of bletilla striata, 0.8-1.2 parts by weight of paris polyphylla, and 2.7-3.3 parts by weight of cactus, crushing, mixing uniformly, boiling in water, filtering, and obtaining.

[0040] In some embodiments of the present application, the purple flower ground ivy is dry whole plant. In some embodiments of the present application, the spade heron is dry whole plant. In some embodiments of the present application, the green wormwood is dry whole plant. In some embodiments of the present application, the ailanthus leaf is dry leaf of ailanthus altissima. In some embodiments of the present application, the white flower snake tongue grass is dry whole plant. In some embodiments of the present application, the motherwort is dry whole plant. In some embodiments of the present application, the mistletoe is dry whole plant. In some embodiments of the present application, the bletilla striata is dry whole plant. In some embodiments of the present application, the paris polyphylla is dry whole plant. In some embodiments of the present application, the cactus is dry whole plant of cactus of the cactus family.

[0041] In some embodiments of the present application, the preparation method of the antibacterial cloth is: (1) mixing 9 volumes of water and 1 volume of 75% ethanol (volume fraction), adding DL-malic acid accounting for about 0.005%-0.02% of the total mass of the mixed solution, immersing the cloth in it, maintaining 35-45℃ and soaking for 20-40 minutes, taking out the cloth piece, and naturally air-drying; (2) completely immersing the cloth treated in step (1) into a plant extract solution, taking out the cloth piece, and naturally air-drying; The plant extract solution is prepared by the following process steps: taking 3 parts by weight of purple flower ground ivy, 3 parts by weight of Chinese marshweed, 1 part by weight of Chinese mugwort, 3 parts by weight of Chinese scholartree leaf, 1 part by weight of white flower snake tongue grass, 3 parts by weight of motherwort, 1 part by weight of taxillus, 1 part by weight of bletilla striata, 1 part by weight of paris polyphylla, and 3 parts by weight of cactus, crushing, mixing uniformly, boiling in water, and filtering to obtain.

[0042] In some embodiments of the present application, the preparation method of the antibacterial cloth is as follows: (1) mixing 9 volumes of water and 1 volume of 75% ethanol (volume fraction), adding DL-malic acid accounting for about 0.005%-0.02% of the total mass of the mixed solution, immersing the cloth in it, maintaining 35-45℃ and soaking for 20-40 minutes, taking out the cloth piece, and naturally air-drying; (2) completely immersing the cloth treated in step (1) into a plant extract solution, taking out the cloth piece, and naturally air-drying; The plant extract solution is prepared by the following process steps: taking 3 parts by weight of purple flower ground ivy, 3 parts by weight of Chinese marshweed, 1 part by weight of Chinese mugwort, 3 parts by weight of Chinese scholartree leaf, 1 part by weight of white flower snake tongue grass, 3 parts by weight of motherwort, 1 part by weight of taxillus, 1 part by weight of bletilla striata, 1 part by weight of paris polyphylla, and 3 parts by weight of cactus, crushing, mixing uniformly, boiling in water, and filtering to obtain; The cloth is polyamide 66.

[0043] In a fourth aspect of the present application, an antibacterial fabric is provided, which comprises the antibacterial cloth according to any one of the second aspect of the present application.

[0044] In some embodiments of the present application, the antibacterial fabric is selected from any one of the following: sports underwear, yoga pants, cycling clothes, outdoor mountaineering clothes, diving clothes, antibacterial socks, field tents, sleeping bag liners, helmet cushion pads, combat boot liners, backpack straps, waistbands, medical protective clothing, masks, medical head coverings, medical goggle straps, bed covers, cushion covers, 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.

[0045] In some embodiments of the present application, the antibacterial fabric is selected from any one of the following: medical bed sheet, pillowcase, operating table cover, medical stretcher cloth, ambulance lining cloth, nursing home, rehabilitation center antibacterial quilt cover, chair cover, cloth protective cover of medical equipment (sphygmomanometer cuff, instrument dust cover), gas mask lining, tactical waistband lining, chemical protective clothing, isolation tent cloth, military sleeping bag moisture barrier, field reconnaissance equipment bag lining, food processing pipeline conveyor belt cover cloth, biopharmaceutical clean room work clothes, isolation curtain, cold storage operation protective clothing, antibacterial glove lining, industrial safety hat lining, earmuff lining, subway handrail cover, bus seat cushion, long-distance bus headrest cover, aircraft luggage compartment cloth lining, cruise ship cabin bedding, shared bicycle / electric vehicle seat cover, antibacterial shower curtain, bath towel, pillow towel, baby crawling pad cover, stroller cloth cover, pet pad, pet nest lining, air conditioner air outlet dust cloth, acarid-proof bed sheet, skin contact cloth of smart wearable device (smart bracelet wristband lining, VR head-mounted mask), antibacterial sports shoe lining for high humidity environment, field medical tent, disaster area temporary shelter cloth, marine fishing mold-proof and bacteria-proof mesh cloth.

[0046] In some embodiments of the present application, the antibacterial fabric is sports underwear, yoga pants, cycling clothes or outdoor mountaineering clothes.

[0047] In some embodiments of the present application, the antibacterial fabric is medical protective clothing, mask or medical head cover.

[0048] In a fifth aspect of the present application, there is provided a sports underwear, yoga pants, cycling clothes, outdoor mountaineering clothes, diving suit, antibacterial socks, field tent, sleeping bag lining, helmet cushion pad, combat boots lining, backpack webbing, waistband, medical protective clothing, mask, medical head cover, medical goggles bandage, bed cover, cushion cloth, car seat cover, subway seat cover, high-speed rail seat cover, aircraft seat cover, household sand cover, food processing protective clothing or cold chain logistics protective clothing, comprising the antibacterial fabric of any one of the present application.

[0049] In a sixth aspect of the present application, there is provided an antibacterial bed sheet, pillowcase, operating table cover, stretcher cloth, ambulance lining cloth, nursing home and rehabilitation center antibacterial quilt cover, chair cover, cloth protective cover for medical equipment (sphygmomanometer cuff, instrument dust cover), gas mask lining, tactical waistband lining, chemical protective clothing, isolation tent cloth, military sleeping bag moisture barrier, field investigation equipment bag lining, food processing line conveyor belt cover, biopharmaceutical clean room workwear, isolation curtain, cold storage operation protective clothing, antibacterial glove lining, industrial safety helmet lining, earmuff pad, subway handrail cover, public transportation seat cushion, long-distance bus headrest cover, aircraft luggage compartment cloth lining, cruise ship cabin bedding, shared bicycle / electric vehicle seat cover, antibacterial shower curtain, bath towel, pillow towel, baby crawling mat cover, stroller cloth cover, pet mat, pet house lining, air conditioner air outlet dust cloth, acarid-killing bed sheet, and skin contact cloth for smart wearable devices (smart bracelet wristband lining, VR head-mounted mask), antibacterial sports shoe lining for high-humidity environments, field medical tent, disaster area temporary shelter cloth, or marine fishing mold-proof and bacteria-proof mesh cloth, comprising the antibacterial cloth of any one of the present application.

[0050] In a seventh aspect of the present application, there is provided a smart wearable device comprising the antibacterial cloth of any one of the present application.

[0051] In some embodiments of the present application, the smart wearable device is optionally selected from any one of the following: head and face contact type, wrist and arm contact type, torso and limb contact type, and foot contact type smart wearable devices.

[0052] In some embodiments of the present application, the smart wearable device is optionally selected from any one of the following: VR / AR head-mounted display, smart helmet, sleep monitoring eyewear, smart bracelet, smart watch, motion monitoring armband, smart sports vest, smart knee pad, elbow pad, ankle pad, electrocardiogram monitoring chest strap, smart insole, smart running shoes, gait analysis socks, rehabilitation training wearable device, medical monitoring patch, and protective smart clothing.

[0053] The antibacterial cloth of the present application exhibits excellent bacteriostatic and bactericidal effects. Without being limited by a particular theory, it is speculated that the reason may be that a small amount of free basic chemical groups exist in the polyamide 66, which can be modified under the action of certain acidic substances, thereby more easily adsorbing specific beneficial ingredients (including potential antibacterial active substances) in the plant extract, and thereby achieving antibacterial or bacteriostatic effects. DETAILED DESCRIPTION

[0054] The raw materials in the following examples include: purple violet (dried whole plant), spiny amaranth (dried whole plant), greenleaf sweetflag (dried whole plant), ailanthus altissima leaf (dried leaf of ailanthus altissima), oldenlandia diffusa (dried whole plant), motherwort (dried whole plant), mistletoe (dried whole plant), bletilla striata (dried whole plant), paris polyphylla (dried whole plant), cactus (dried whole plant of opuntia dillenii). The reagents include: L-(+)-tartaric acid (AnNaiJi, A01079082), DL-malic acid (AnNaiJi, A010754). Examples

[0055] Example 1, excavate technical problems and develop iterative solutions The inventors noticed that in recent years, many summer clothes (such as short-sleeved T-shirts) and outdoor clothes on the market often have black spots on the armpits, back, etc. after being worn several times in high-temperature seasons. These spots are essentially formed by the rapid reproduction of bacteria or fungi under the conditions of sweat infiltration and relatively high temperature and humidity. Since these stains are extremely difficult to completely remove by ordinary machine washing or hand washing, wearers often can only leave the clothes idle or discard them, not only causing economic losses, but also wasting resources.

[0056] Based on years of work and practical experience in cotton spinning mills, the inventors keenly discovered the problems and potential market opportunities behind this phenomenon and tried various coping strategies. One of the feasible ways is to inhibit the rapid growth and reproduction of bacteria and fungi from the source by modifying or specially treating the fabric.

[0057] On the basis of previous self-developed technology, the inventors further optimized and iterated, and finally formed the technical solution of the present application.

[0058] The previous solution was: first treat the nylon 66 fabric with (E)-3-(3,4-dihydroxyphenyl) acrylic acid, and then continue to treat the fabric with a plant extract (3 parts by weight of purple violet, 3 parts by weight of spiny amaranth, 3 parts by weight of greenleaf sweetflag, 3 parts by weight of ailanthus altissima leaf, 3 parts by weight of oldenlandia diffusa, 1 part by weight of motherwort, 1 part by weight of mistletoe, 1 part by weight of bletilla striata, 1 part by weight of paris polyphylla, 1 part by weight of cactus, pulverize and mix, add 5 times the weight of water, boil for 1 hour, filter).

[0059] The main idea of the improvement / iteration of the present application is to try to replace (E)-3-(3,4-dihydroxyphenyl) acrylic acid with safer acids, including acids in the food additive list such as L-(+)-tartaric acid, DL-malic acid, to treat the cloth, and then continue to treat the cloth with plant extract. The inventor tried with the original plant extract and found that the anti-black spot formation effect was worse, so he changed other treatment parameters, and after groping, he found that by properly adjusting the plant raw material ratio of the plant extract and matching with DL-malic acid, and adaptively adjusting some other parameters, there is a very strong anti-black spot formation effect. Finally, the present application is obtained.

[0060] Example 2, preparation of anti-black spot solution (for manufacturing high-performance nylon and other cloth) Preparation of plant extract 1: take 3 parts by weight of purple flower ground ivy, 3 parts by weight of spadeleaf, 1 part by weight of artemisia, 3 parts by weight of ailanthus altissima, 1 part by weight of white flower snake tongue, 3 parts by weight of motherwort, 3 parts by weight of cactus, wash with clean water, and dry naturally; use a pulverizer to crush to an average particle size of about 0.8 mm respectively; uniformly mix to obtain mixed powder. Add 4 times the weight of mineral water to the mixed powder, boil to 100℃, maintain for 1 hour, and naturally cool to room temperature; filter to remove the filter residue, and the clear plant extract 1 is obtained.

[0061] Preparation of plant extract 2: take 1 part by weight of artemisia, 3 parts by weight of ailanthus altissima, 1 part by weight of white flower snake tongue, 3 parts by weight of motherwort, 1 part by weight of taxillus, 1 part by weight of bletilla striata, 1 part by weight of paris polyphylla, and 3 parts by weight of cactus, wash with clean water, and dry naturally; use a pulverizer to crush to an average particle size of about 0.8 mm respectively; uniformly mix to obtain mixed powder. Add 4 times the weight of mineral water to the mixed powder, boil to 100℃, maintain for 1 hour, and naturally cool to room temperature; filter to remove the filter residue, and the clear plant extract 2 is obtained.

[0062] Preparation of plant extract 3: take 1 part by weight of purple flower ground ivy, 1 part by weight of spadeleaf, 1 part by weight of artemisia, 1 part by weight of ailanthus altissima, 1 part by weight of white flower snake tongue, 3 parts by weight of motherwort, 1 part by weight of taxillus, 1 part by weight of bletilla striata, 1 part by weight of paris polyphylla, and 3 parts by weight of cactus, wash with clean water, and dry naturally; use a pulverizer to crush to an average particle size of about 0.8 mm respectively; uniformly mix to obtain mixed powder. Add 4 times the weight of mineral water to the mixed powder, boil to 100℃, maintain for 1 hour, and naturally cool to room temperature; filter to remove the filter residue, and the clear plant extract 3 is obtained.

[0063] Preparation of plant extract 4: Take 3 parts by weight of Viola philippica, 3 parts by weight of Herba Portulacae, 1 part by weight of Herba Artemisiae, 3 parts by weight of Ailanthus altissima leaves, 1 part by weight of Herba Oldenlandiae, 3 parts by weight of Herba Leonuri, 1 part by weight of Taxillus delavayi, 1 part by weight of Rhizoma Bletillae, 1 part by weight of Euphorbiae humifusae, and wash them with clean water and air dry naturally. Use a pulverizer to grind them to an average particle size of about 0.8 mm. Mix them evenly to obtain a mixed powder. Add 4 times the weight of mineral water to the mixed powder, and boil to 100°C, maintain for 1 hour, and cool to room temperature naturally. Filter to remove the residue, and obtain the clear plant extract 4.

[0064] Preparation of plant extract 5: Take 3 parts by weight of Viola philippica, 3 parts by weight of Herba Portulacae, 1 part by weight of Herba Artemisiae, and 3 parts by weight of Euphorbiae humifusae, and wash them with clean water and air dry naturally. Use a pulverizer to grind them to an average particle size of about 0.8 mm. Mix them evenly to obtain a mixed powder. Add 4 times the weight of mineral water to the mixed powder, and boil to 100°C, maintain for 1 hour, and cool to room temperature naturally. Filter to remove the residue, and obtain the clear plant extract 5.

[0065] Preparation of plant extract 6: Take 3 parts by weight of Ailanthus altissima leaves, 1 part by weight of Herba Oldenlandiae, 3 parts by weight of Herba Leonuri, 1 part by weight of Taxillus delavayi, 1 part by weight of Rhizoma Bletillae, and 1 part by weight of Euphorbiae humifusae, and wash them with clean water and air dry naturally. Use a pulverizer to grind them to an average particle size of about 0.8 mm. Mix them evenly to obtain a mixed powder. Add 4 times the weight of mineral water to the mixed powder, and boil to 100°C, maintain for 1 hour, and cool to room temperature naturally. Filter to remove the residue, and obtain the clear plant extract 6.

[0066] Preparation of plant extract 7: Take 3 parts by weight of Viola philippica, 3 parts by weight of Herba Portulacae, 1 part by weight of Herba Oldenlandiae, 3 parts by weight of Herba Leonuri, 1 part by weight of Taxillus delavayi, 1 part by weight of Rhizoma Bletillae, and 3 parts by weight of Euphorbiae humifusae, and wash them with clean water and air dry naturally. Use a pulverizer to grind them to an average particle size of about 0.8 mm. Mix them evenly to obtain a mixed powder. Add 4 times the weight of mineral water to the mixed powder, and boil to 100°C, maintain for 1 hour, and cool to room temperature naturally. Filter to remove the residue, and obtain the clear plant extract 7.

[0067] Preparation of plant extract 8: Take 3 parts by weight of Viola philippica, 3 parts by weight of Herba Portulacae, 1 part by weight of Herba Artemisiae, 3 parts by weight of Ailanthus altissima leaves, 1 part by weight of Taxillus delavayi, 1 part by weight of Rhizoma Bletillae, and 3 parts by weight of Euphorbiae humifusae, and wash them with clean water and air dry naturally. Use a pulverizer to grind them to an average particle size of about 0.8 mm. Mix them evenly to obtain a mixed powder. Add 4 times the weight of mineral water to the mixed powder, and boil to 100°C, maintain for 1 hour, and cool to room temperature naturally. Filter to remove the residue, and obtain the clear plant extract 8.

[0068] Preparation of plant extract 9: Refer to patent CN105663725A, take 6 parts by weight of eight immortals grass, 8 parts by weight of spotted orchid, 3 parts by weight of green amaranth, 15 parts by weight of small spade, 5 parts by weight of soap tree thorn, 3 parts by weight of purple flower, 5 parts by weight of centipede grass, 12 parts by weight of summer grass, 16 parts by weight of two-faced needle, 3 parts by weight of common perilla, 12 parts by weight of wormwood, 10 parts by weight of bamboo-leaf banana, 5 parts by weight of dandelion, 16 parts by weight of salt gluten, 10 parts by weight of voice color grass, 8 parts by weight of mugwort, 10 parts by weight of water pine, 15 parts by weight of plantain, 3 parts by weight of garlic, 8 parts by weight of cactus, 5 parts by weight of small wax tree, 1 part by weight of deer ear wing, 12 parts by weight of bigleaf blueleaf, 10 parts by weight of eucalyptus leaf, 9 parts by weight of white peony, 15 parts by weight of magnolia officinalis, 15 parts by weight of tripterygium wilfordii, 8 parts by weight of abacus, 5 parts by weight of sophora, 3 parts by weight of honeysuckle, 14 parts by weight of soap, 9 parts by weight of wild chrysanthemum, 6 parts by weight of burdock seed, wash with clean water, and dry naturally; use a pulverizer to crush to an average particle size of about 0.8 mm respectively; uniformly mix to obtain mixed powder. Add 4 times the weight of mineral water to the mixed powder, boil to 100℃, maintain for 1 hour, and naturally cool to room temperature; filter to remove the filter residue, and obtain clear plant extract 9.

[0069] Preparation of plant extract 10: take 3 parts by weight of purple flower, 3 parts by weight of spade, 1 part by weight of wormwood, 3 parts by weight of Chinese ailanthus leaf, 1 part by weight of white flower snake tongue, 3 parts by weight of motherwort, 3 parts by weight of cactus, 2 parts by weight of dandelion, 3 parts by weight of mugwort, 1 part by weight of honeysuckle, wash with clean water, and dry naturally; use a pulverizer to crush to an average particle size of about 0.8 mm respectively; uniformly mix to obtain mixed powder. Add 4 times the weight of mineral water to the mixed powder, boil to 100℃, maintain for 1 hour, and naturally cool to room temperature; filter to remove the filter residue, and obtain clear plant extract 10.

[0070] Preparation of plant extract 11: Refer to patent CN105796960A, take Dazelan leaf 12 parts by weight, Corydalis 9 parts by weight, cactus 4 parts by weight, Radix et Rhizoma Tripterygii 10 parts by weight, Gentiana 5 parts by weight, Centella asiatica 12 parts by weight, Giant Knotweed 13 parts by weight, Cowslip 4 parts by weight, Imperata cylindra 9 parts by weight, Schizonepeta 5 parts by weight, Herba Aristolochiae 12 parts by weight, Phellodendron 3 parts by weight, Caulis Polygoni Multiflori 7 parts by weight, Tree Peony Bark 13 parts by weight, Pueraria 11 parts by weight, Atractylodes 4 parts by weight, Indigo 6 parts by weight, Alkanna tinctoria 13 parts by weight, Gentiana 7 parts by weight, Rhizoma Arisaematis 5 parts by weight, Gardenia 18 parts by weight, Houttuynia cordata 11 parts by weight, Herba Agrimoniae 9 parts by weight, Notopterygium 4 parts by weight, Panax notoginseng 6 parts by weight, Rosa 4 parts by weight, Purple Violet 2 parts by weight, Taraxacum 6 parts by weight, Herba Glechomae 6 parts by weight, Drynaria 14 parts by weight, Herba Viticis Rotundifolii 5 parts by weight, Artemisia annua 10 parts by weight, Herba Portulacae 4 parts by weight, Carex 2 parts by weight, wash with clean water, dry naturally; use a pulverizer to crush to an average particle size of about 0.8 mm respectively; uniformly mix to obtain mixed powder. Add 4 times the weight of mineral water to the mixed powder, boil to 100°C, maintain for 1 hour, and cool naturally to room temperature; filter to remove the filter residue, to obtain clear plant extract 11.

[0071] Preparation of plant extract 12: Refer to patent CN1706449B, take Taxillus 9 parts by weight, Euonymus 9 parts by weight, Bletilla 6 parts by weight, Lily 6 parts by weight, Loquat leaf 3 parts by weight, Platycladus 3 parts by weight, wash with clean water, dry naturally; use a pulverizer to crush to an average particle size of about 0.8 mm respectively; uniformly mix to obtain mixed powder. Add 4 times the weight of mineral water to the mixed powder, boil to 100°C, maintain for 1 hour, and cool naturally to room temperature; filter to remove the filter residue, to obtain clear plant extract 12.

[0072] Example 3, Test of Anti-black spot function of high-performance nylon and other fabrics To evaluate the antibacterial effect of different treated fabrics, this study collected and cultured the sweat and bacterial flora of volunteers, inoculated them on the fabrics, and recorded the time and number of black spots formed.

[0073] Strain collection: Use a sterile cotton swab to sample the skin surface under the armpits and back of the volunteers, respectively, to obtain the naturally existing mixed flora. The collection is inoculated in sugar broth nutrient solution and cultured at 37°C to obtain a mixed bacterial solution that can significantly accelerate the formation of black spots on the fabric in the simulation experiment.

[0074] Volunteer samples include 5 healthy men and 5 women, aged 21-55 years old.

[0075] Nutrient solution preparation method: take 30 grams of rice, add water to cook until completely soft, get about 300 milliliters thick white rice soup; add 10 grams of white sugar and 5 grams of salt to it, stir until completely dissolved. Then add commercially available mineral water (IPO brand) to make up the total volume to 1000 milliliters, heat and boil for about 10 minutes, cool to room temperature.

[0076] Sampling and testing process: collection was carried out after the volunteers exercised, just when they started to sweat. Each volunteer used 3 sterile cotton swabs (Yongyi brand, I type / 12 cm) to fully absorb the sweat under the left and right armpits; back collection was carried out by taking 1 sterile cotton swab to fully absorb the sweat in each of the four areas of the upper left, lower left, upper right and lower right. The sweat in all cotton swabs was squeezed out and mixed, then mixed with 50 milliliters of self-prepared nutrient solution, and cultured at 40°C for 16 hours. After the culture was completed, the mixed solution was diluted to 10 times the original volume with commercially available mineral water (IPO brand) to obtain the test bacteria solution. Each volunteer prepared a corresponding test bacteria solution, a total of 10, which were used for subsequent black spot formation experiments.

[0077] The cloth treatment method is: (1) first treated with DL-malic acid, or treated with L-(+)-tartaric acid, or not treated; then (2) treated with any plant extract prepared by the method described in Example 2. The specific process is as follows.

[0078] DL-malic acid treatment step: first mix 900 mL of water with 100 mL of 75% ethanol by volume, add 0.1 g of DL-malic acid, heat to 40°C and stir until it is completely dissolved. Place the nylon 66 cloth piece cut into 10 cm x 10 cm into the solution and soak at 40°C for 30 minutes. After the treatment is completed, take out the cloth piece and dry it in natural air.

[0079] (+)-tartaric acid treatment step: first mix 900 mL of water with 100 mL of 75% ethanol by volume, add 0.1 g of L-(+)-tartaric acid, heat to 40°C and stir until it is completely dissolved. Place the nylon 66 cloth piece cut into 10 cm x 10 cm into the solution and soak at 40°C for 30 minutes. After the treatment is completed, take out the cloth piece and dry it in natural air.

[0080] Then, at room temperature, the DL-malic acid treated, L-(+)-tartaric acid treated and untreated nylon cloth pieces were respectively completely immersed in 10 mL of any plant extract prepared according to the method of Example 2 (control groups 1-3 were replaced with an equal amount of mineral water; except for group A4b, see Table 1 for details). After standing for 1 hour, the cloth pieces were taken out and dried in natural ventilation conditions, obtaining the cloth pieces of each experimental group listed in Table 1.

[0081] Preparation of simulated sweat: Weigh 6g of NaCl, 2g of lactic acid and 1g of urea, and add them to 1000mL of mineral water. Stir until dissolved. Test the solution for pH using pH paper, and adjust to about pH 6.

[0082] The groups were divided according to Table 1, and each group of nylon 66 fabric pieces was inoculated with 0.5 mL of test bacteria solution and 0.5 mL of simulated sweat. The source of the test bacteria solution was: each piece of fabric in each treatment group was inoculated with bacteria solution prepared from the sweat of any one volunteer, and a total of 10 tests were performed for each group, i.e. one piece of fabric was tested for each volunteer's sweat bacteria solution. After inoculation, the fabric pieces were placed in an electrically heated constant temperature drying oven (Model 202-0A, Shaoxing Shangyu Tianyu Plastic Instrument Factory) with a temperature setting of 40°C, and no air blowing was used during the entire experiment. To maintain a high humidity environment, a circular water pan with a diameter of about 15 cm and a water depth of about 2 cm was placed at the bottom of the oven, and the fabric pieces were placed on the net rack above the water surface. The above conditions were continuously cultured for 130 hours.

[0083] During the experiment, the formation of black spots was recorded, including the time of first appearance and the area covered. The specific method was as follows: each piece of fabric was evenly divided into 1cm x 1cm squares, a total of 100 squares. When at least one black spot with a diameter of not less than 2mm appeared in any small square, it was counted as 1 square centimeter of black spot area. The calculation method of the first appearance time of black spots was as follows: the time was counted from the start of placing the fabric pieces in the high temperature and high humidity oven, until the time point when a black spot with a diameter of ≥2mm first appeared in a small square. The final result of each group was the average of 10 fabric pieces (corresponding to 10 volunteers' sweat bacteria solution tests).

[0084] The results are shown in Table 1: Within 130 hours, at least one black spot with a diameter of ≥2mm was formed on all fabric pieces. Among them, the first appearance time of black spots in groups A4 and A4b was significantly later than that in the other groups, and the difference was statistically significant (P<0.01). At 100 hours of the experiment, the black spot area of groups A4 and A4b was smaller than that of the other groups, also showing a statistically significant difference (P<0.01).

[0085] Among them, groups A1 to A12 and A4b were treated with DL-malic acid; groups B1 to B12 were treated with L-(+)-tartaric acid; groups C4, C9 and C10 were not treated with acid.

[0086] The first occurrence time of black spots in the A4 group and the A4b group is later than that in the B4 group (P<0.01); the area of black spots in the A4 group and the A4b group at 100 hours is smaller than that in the B4 group (P<0.01). The first occurrence time of black spots in the C4 group is earlier than that in the A4 group (P<0.01); the area of black spots in the C4 group at 100 hours is larger than that in the A4 group (P<0.01). This shows the importance of acid treatment, and only DL-malic acid treatment can be effective, and L-(+)-tartaric acid treatment is ineffective.

[0087] In the experimental design of the A1 to A12 groups and the A4b group, the extraction liquid 1 is obtained by removing the Taxillus, Bletilla striata and Paris polyphylla from the formula of the extraction liquid 4; the extraction liquid 2 is obtained by removing the Violanthus and the Portulaca oleracea from the extraction liquid 4; the extraction liquid 5 and the extraction liquid 6 both only use part of the raw materials of the extraction liquid 4; and the extraction liquid 7 removes the Artemisia annua and the Ailanthus altissima. The test results show that the antibacterial performance of these formulas is significantly weaker than that of the A4 group and the A4b group (P<0.01), which shows that the integrity of the raw material components in the extraction liquid 4 is crucial to its effect, and the absence of raw materials will lead to a decrease in performance, and this result is unpredictable.

[0088] The extraction liquid 3 adjusts the proportioning of the extraction liquid 4 without changing the types of raw materials, but its test results are still significantly worse than those of the extraction liquid 4 (P<0.01), which shows that the proportioning of the raw materials of the extraction liquid 4 plays a key role in performance, and this effect cannot be expected in advance. The extraction liquids 9 to 12 are mainly prepared according to the prior art method, and the test performance is also worse than that of the extraction liquid 4 (P<0.01), which further highlights the significant advantage and unpredictability of the performance of the present application compared with the prior art.

[0089] This shows the antibacterial advantage of the DL-malic acid combined with the plant extraction liquid 4 in the A4 group and the A4b group after treating the cloth pieces.

[0090] Table 1. Treatment methods and experimental results of each group

[0091]

[0092] Example 4, rinsing test of high-performance nylon cloth According to the method of Example 3, the cloth pieces in each experimental group were placed in a humid and high-temperature box for 130 hours, then immersed in a diluted sodium hypochlorite solution for about 10 minutes, and then gently washed with clean water. The inspection results are as follows: the black spots on the surfaces of the cloth pieces in the A4 group and the A4b group have been completely removed and cannot be observed by the naked eye; the black spots on the surfaces of the cloth pieces in the other groups have not been completely removed and residual spots can still be clearly observed.

[0093] The results show that the A4 group and the A4b group treated with DL-malic acid and plant extract 4 have significant advantages in antibacterial and bacteriostatic performance.

[0094] Example 5. Preparation of antibacterial fabric containing high-performance nylon fabric The fabric treated with DL-malic acid and plant extract 4 obtained in Example 3 is processed into sports underwear according to the conventional textile process, so as to obtain finished underwear containing high-performance nylon fabric.

[0095] Example 6. Preparation of antibacterial fabric containing high-performance nylon fabric The fabric treated with DL-malic acid and plant extract 4 obtained in Example 3 is processed into medical protective clothing according to the conventional textile process, so as to obtain medical protective clothing containing high-performance nylon fabric.

[0096] Example 7. Preparation of antibacterial fabric containing high-performance nylon fabric The fabric treated with DL-malic acid and plant extract 4 obtained in Example 3 is processed into outdoor mountaineering clothing according to the conventional textile process, so as to obtain outdoor mountaineering clothing containing high-performance nylon fabric.

[0097] Example 8. Preparation of antibacterial fabric containing high-performance nylon fabric The fabric treated with DL-malic acid and plant extract 4 obtained in Example 3 is processed into antibacterial socks according to the conventional textile process, so as to obtain antibacterial socks containing high-performance nylon fabric.

[0098] Example 9. Preparation of antibacterial fabric containing high-performance nylon fabric The fabric treated with DL-malic acid and plant extract 4 obtained in Example 3 is processed into cycling clothing according to the conventional textile process, so as to obtain cycling clothing containing high-performance nylon fabric.

[0099] Example 10. Preparation of antibacterial fabric containing high-performance nylon fabric The fabric treated with DL-malic acid and plant extract 4 obtained in Example 3 is processed into cold-chain logistics protective clothing according to the conventional textile process, so as to obtain cold-chain logistics protective clothing containing high-performance nylon fabric.

[0100] Example 11. Preparation of antibacterial fabric containing high-performance nylon fabric The fabric treated with DL-malic acid and plant extract 4 obtained in Example 3 is processed into diving clothes according to the conventional textile process, so as to obtain diving clothes containing high-performance nylon fabric.

[0101] Example 12. Preparation of antibacterial fabric containing high performance nylon fabric The cloth treated with DL-malic acid and plant extract 4 obtained in Example 3 was processed into a yoga pant according to a conventional textile process, thereby obtaining a yoga pant containing high performance nylon fabric.

[0102] Example 13. Preparation of antibacterial fabric containing high performance nylon fabric The cloth treated with DL-malic acid and plant extract 4 obtained in Example 3 was processed into a tent according to a conventional textile process, thereby obtaining a tent containing high performance nylon fabric.

[0103] Example 14. Preparation of antibacterial fabric containing high performance nylon fabric The cloth treated with DL-malic acid and plant extract 4 obtained in Example 3 was processed into a car seat cover according to a conventional textile process, thereby obtaining a car seat cover containing high performance nylon fabric.

[0104] Example 15. Preparation of antibacterial fabric containing high performance nylon fabric The cloth treated with DL-malic acid and plant extract 4 obtained in Example 3 was processed into a household sand table cover according to a conventional textile process, thereby obtaining a household sand table cover containing high performance nylon fabric.

[0105] Example 16. Preparation of antibacterial fabric containing high performance nylon fabric The cloth treated with DL-malic acid and plant extract 4 obtained in Example 3 was processed into a food processing protective clothing according to a conventional textile process, thereby obtaining a food processing protective clothing containing high performance nylon fabric.

[0106] Example 17. Preparation of antibacterial fabric containing high performance nylon fabric The cloth treated with DL-malic acid and plant extract 4 obtained in Example 3 was processed into sports underwear, yoga pants, cycling clothes, outdoor mountaineering clothes, diving clothes, antibacterial socks, tents, sleeping bag liners, helmet cushion pads, combat boots liners, backpack straps, waistbands, medical protective clothing, masks, medical head coverings, medical goggle straps, bed covers, cushion covers, car seat covers, subway seat covers, high-speed rail seat covers, airplane seat covers, household sand table covers, food processing protective clothing, and cold chain logistics protective clothing according to a conventional textile process.

[0107] Example 18. Preparation of products containing high performance nylon fabric The cloth treated with DL-malic acid and plant extract 4 obtained in Example 3 is processed into medical bed sheets, pillowcases, operating table covers, medical stretcher cloths, ambulance interior lining cloths, antibacterial quilt covers for old-age homes and rehabilitation centers, chair covers, cloth protective covers for medical devices (sphygmomanometer cuff covers, instrument dust covers), gas mask inner linings, tactical waistband inner linings, chemical protective clothing, isolation tent cloths, military sleeping bag moisture-proof layers, field investigation equipment bag inner linings, food processing assembly line conveyor belt cover cloths, clean room work clothes for biopharmaceutical factories, isolation curtains, cold storage operation protective clothing, antibacterial glove inner linings, industrial safety helmet inner linings, earmuff padding, subway handrail covers, public transportation seat cushions, long-distance bus headrest covers, aircraft luggage compartment cloth linings, cruise ship cabin bedclothes, shared bicycle / electric vehicle seat cover, antibacterial shower curtains, bath towels, pillow towels, baby crawling mat covers, stroller cloth covers, pet mats, pet nest inner linings, air conditioner air outlet dustproof cloths, acarid-proof bed sheets, skin contact cloth for smart wearable devices (smart bracelet wristband lining, VR head-mounted mask), antibacterial sports shoe inner linings for high-humidity environments, field medical tents, disaster area temporary shelter cloths, and mold-proof and bacteria-proof mesh cloths for marine fisheries, according to conventional textile processes.

[0108] Example 19. Preparation of products containing high-performance nylon fabrics The cloth treated with DL-malic acid and plant extract 4 obtained in Example 3 is processed into smart wearable devices, according to conventional textile processes.

[0109] Example 20. Preparation of products containing high-performance nylon fabrics The cloth treated with DL-malic acid and plant extract 4 obtained in Example 3 is processed into head and face contact type, wrist and arm contact type, torso and limb contact type, and foot contact type smart wearable devices, according to conventional textile processes.

[0110] Example 21. Preparation of products containing high-performance nylon fabrics The cloth treated with DL-malic acid and plant extract 4 obtained in Example 3 is processed into VR / AR headsets, smart helmets, sleep monitoring eyecups, smart bracelets, smart watches, motion monitoring armbands, smart sports vests, smart knee pads, elbow pads, ankle pads, electrocardiogram monitoring chest bands, smart insoles, smart running shoes, gait analysis socks, rehabilitation training wearable devices, medical monitoring patches, and protective smart clothing, according to conventional textile processes.

Claims

1. An antibacterial fabric, characterized in that, The antibacterial fabric is obtained by the following process steps: (1) Treat the fabric with DL-malic acid; then (2) Treat the fabric processed in step (1) with plant extract; The plant extract is prepared using the following process: 2.7-3.3 parts by weight of Viola yedoensis, 2.7-3.3 parts by weight of Portulaca oleracea, 0.8-1.2 parts by weight of Artemisia annua, 2.7-3.3 parts by weight of Ailanthus altissima leaves, 0.8-1.2 parts by weight of Hedyotis diffusa, 2.7-3.3 parts by weight of Leonurus japonicus, 0.8-1.2 parts by weight of Viscum album, 0.8-1.2 parts by weight of Bletilla striata, 0.8-1.2 parts by weight of Paris polyphylla, and 2.7-3.3 parts by weight of Opuntia ficus-indica, are pulverized, mixed evenly, boiled in water, and filtered to obtain the extract. The fabric is nylon.

2. The antibacterial fabric as described in claim 1, characterized in that, The fabric is nylon 66.

3. The antibacterial fabric as described in claim 1, characterized in that, The antibacterial fabric is obtained by the following process steps: (1) Mix 9 volumes of water and 1 volume of 75% ethanol, add DL-malic acid accounting for 0.005%-0.02% of the total mass of the mixed solution, immerse the fabric in it, maintain 40°C and soak for 30 minutes, take out the fabric and let it air dry naturally. (2) Immerse the fabric treated in step (1) completely in the plant extract, remove the fabric pieces, and let them air dry naturally; The plant extract is prepared by the following process: take 3 parts by weight of Viola yedoensis, 3 parts by weight of Portulaca oleracea, 1 part by weight of Artemisia annua, 3 parts by weight of Ailanthus altissima leaves, 1 part by weight of Hedyotis diffusa, 3 parts by weight of Leonurus japonicus, 1 part by weight of Mistletoe, 1 part by weight of Bletilla striata, 1 part by weight of Paris polyphylla, and 3 parts by weight of Prickly pear cactus, crush them, mix them evenly, boil them in water, and filter them to obtain the extract.

4. The antibacterial fabric as described in claim 1, characterized in that, The antibacterial fabric is obtained by the following process steps: (1) Mix 900mL of water and 100mL of 75% ethanol, add 0.1g of DL-malic acid, and heat to 40℃ to dissolve; put the nylon 66 fabric into it, maintain 40℃ and soak for 30 minutes, take it out and air dry naturally; (2) Immerse the fabric treated in step (1) completely in the plant extract, remove the fabric pieces, and let them air dry naturally; The plant extract is prepared by the following process: Take 3 parts by weight of Viola yedoensis, 3 parts by weight of Portulaca oleracea, 1 part by weight of Artemisia annua, 3 parts by weight of Ailanthus altissima leaves, 1 part by weight of Hedyotis diffusa, 3 parts by weight of Leonurus japonicus, 1 part by weight of Mistletoe, 1 part by weight of Bletilla striata, 1 part by weight of Paris polyphylla, and 3 parts by weight of Prickly pear cactus, crush them, mix them evenly to obtain a mixed powder, add 4 times the weight of water to the mixed powder, boil for 1 hour, filter to remove the residue, and the extract is obtained. The fabric is nylon 66.

5. A smart wearable device, characterized in that, The smart wearable device includes the antibacterial fabric as described in any one of claims 1-4.

6. An antimicrobial fabric, said antimicrobial fabric comprising the antimicrobial fabric according to any one of claims 1-4; The antibacterial fabric is selected from any of the following: sports underwear, yoga pants, cycling clothing, outdoor mountaineering clothing, diving suits, antibacterial socks, outdoor tents, sleeping bag linings, helmet cushioning pads, combat boot linings, backpack webbing, belts, medical protective clothing, masks, medical head covers, medical goggles straps, bedspreads, cushion fabrics, car seat covers, subway seat covers, high-speed rail seat covers, airplane seat covers, home sofa covers, food processing protective clothing, and cold chain logistics protective clothing.

7. The antibacterial fabric as described in claim 6, characterized in that, The antibacterial fabric is sports underwear, yoga pants, cycling clothing, or outdoor mountaineering clothing.

8. The antibacterial fabric as described in claim 6, characterized in that, The antibacterial fabric is a medical protective suit, mask, or medical head cover.

9. The antibacterial fabric as described in claim 6, characterized in that, The antibacterial fabric is a car seat cover, subway seat cover, high-speed rail seat cover, airplane seat cover, household sofa cover, food processing protective clothing, or cold chain logistics protective clothing.

10. A method for preparing an antibacterial fabric, characterized in that, The method for preparing the antibacterial fabric includes: (1) Treat the fabric with DL-malic acid; then (2) Treat the fabric processed in step (1) with plant extract; The plant extract is prepared using the following process: 2.7-3.3 parts by weight of Viola yedoensis, 2.7-3.3 parts by weight of Portulaca oleracea, 0.8-1.2 parts by weight of Artemisia annua, 2.7-3.3 parts by weight of Ailanthus altissima leaves, 0.8-1.2 parts by weight of Hedyotis diffusa, 2.7-3.3 parts by weight of Leonurus japonicus, 0.8-1.2 parts by weight of Viscum album, 0.8-1.2 parts by weight of Bletilla striata, 0.8-1.2 parts by weight of Paris polyphylla, and 2.7-3.3 parts by weight of Opuntia ficus-indica, are pulverized, mixed evenly, boiled in water, and filtered to obtain the extract. The fabric is nylon 66.

11. The method for preparing the antibacterial fabric as described in claim 10, characterized in that, The method for preparing the antibacterial fabric is as follows: (1) Mix 9 volumes of water and 1 volume of 75% ethanol (volume fraction), add 0.005%-0.02% of DL-malic acid as the total mass of the mixed solution, immerse the fabric in it, maintain 35-45℃ and soak for 20-40 minutes, take out the fabric and let it air dry naturally; (2) Immerse the fabric treated in step (1) completely in the plant extract, remove the fabric pieces, and let them air dry naturally; The plant extract is prepared by the following process: take 3 parts by weight of Viola yedoensis, 3 parts by weight of Portulaca oleracea, 1 part by weight of Artemisia annua, 3 parts by weight of Ailanthus altissima leaves, 1 part by weight of Hedyotis diffusa, 3 parts by weight of Leonurus japonicus, 1 part by weight of Mistletoe, 1 part by weight of Bletilla striata, 1 part by weight of Paris polyphylla, and 3 parts by weight of Prickly pear cactus, crush them, mix them evenly, boil them in water, and filter them to obtain the extract. The fabric is nylon 66.

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