Manufacturing process of antibacterial lace fabric

Abstract

The invention provides an antibacterial lace fabric manufacturing process which comprises the following steps: (1) uniformly stirring and mixing a natural plant extract, an antibacterial agent, a polycarboxylic acid finishing agent, an accelerant, a softening agent and water to obtain an antibacterial soaking solution; (2) preparing a base layer by using silk fibers and metal fibers as raw materials, and preparing a decorative layer by using chinlon, spandex and metal fibers as raw materials to obtain a lace gray fabric; the content of the metal fibers in the lace grey cloth is 20-25%, the content of the silk fibers is 14-18%, the content of the spandex is 12-18%, and the balance is chinlon; and (3) soaking the lace gray fabric in the antibacterial soaking solution, carrying out constant-temperature oscillation soaking, and drying to obtain the antibacterial lace fabric. The lace fabric prepared by the method is good in antibacterial property, strong in washing resistance, and good in snagging resistance and friction resistance.

Description

Technical Field

[0001] The invention belongs to the technical field of textiles, and in particular relates to a manufacturing process of antibacterial lace fabric. Background Art

[0002] Metallic lace fabric is an innovative fabric that combines traditional lace craftsmanship with modern fashion elements. This fabric usually achieves a luster effect by adding metal threads or metal-coated yarns during lace weaving or embroidery. The metal threads can be copper, silver, gold and other colors, and even have special color treatments such as rainbow colors or color-changing effects, adding a sense of luxury and futuristic to clothing.

[0003] Lace fabrics are popular for their exquisite and elegant appearance, but there are some problems with their use and maintenance: (1) Fragility: Lace fabrics are generally fragile and can be easily caught by sharp objects, causing them to snag or tear. This is especially true for lace with metal wires or other hard components, which can break or fall off. (2) Deformation: Lace fabrics tend to lose their original shape after being worn or washed, especially lace containing elastic fibers. Due to its thin and light nature, lace may sag and deform due to gravity or improper storage. (3) Pilling: Even high-quality lace may pill after prolonged friction, affecting its appearance. (4) High maintenance requirements: Lace fabrics are generally difficult to maintain and need to be kept away from direct sunlight and high temperatures to prevent fading and aging. (5) Antibacterial properties: Lace fabrics are often used to make underwear, panties, pajamas, bras and other close-fitting clothing. These garments come into direct contact with the skin and are prone to breeding bacteria.

[0004] Chinese patent 201610445519.X discloses a method for preparing a lace fabric with metallic luster. The chitosan and nano-titanium dioxide contained in the nano-particle layer of the prepared lace fabric with metallic luster have excellent antibacterial properties. Nano-titanium dioxide and the generated silver particles and gold particles also have a certain reflection effect on light, which further improves the metallic texture of the lace fiber. However, after washing or friction, the nano-particle layer is not firm, resulting in the lace fabric's antibacterial properties not lasting, and the nano-particle layer will also destroy the feel of the lace fabric.

[0005] Therefore, a kind of antibacterial lace fabric manufacturing process is badly needed. Summary of the invention

[0006] The purpose of the invention is to provide a process for producing antibacterial lace fabric.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] A process for producing antibacterial lace fabric comprises the following steps:

[0009] (1) mixing the natural plant extract, the antibacterial agent, the polycarboxylic acid finishing agent, the accelerator, the softener and water to obtain an antibacterial soaking liquid;

[0010] Wherein, the preparation method of natural plant extract is:

[0011] S1: Mix Amaranthus tricolor, Herba Lysimachiae, Solanum nigrum and Angelica dahurica, and grind them into a particle size of less than 80-100 mesh to obtain mixed plant micro powder;

[0012] S2: Add 12-15 parts by weight of water to 1 part by weight of the mixed plant micropowder, soak for 30-40 minutes, heat to 80-90°C, keep warm for 50-60 minutes, cool to room temperature, add 0.01-0.03 parts by weight of composite bacteria, and perform anaerobic fermentation at a temperature of 34-37°C and a fermentation time of 8-10 hours. After sterilization, a fermentation product is obtained; the composite bacteria is a mixture of Bacillus coagulans, Lactobacillus brevis and Bifidobacterium longum in a mass ratio of 1: (0.2-0.5): (1.5-1.7);

[0013] S3: placing the fermentation product into a microwave reactor with a microwave power of 200-300 W and an extraction time of 1-2 h to obtain an extraction product;

[0014] S4: filtering the extracted product through a 0.22 μm filter membrane to obtain a filtrate, concentrating and drying the filtrate to obtain a plant extract;

[0015] (2) preparing a base layer using silk fiber and metal fiber as raw materials, and preparing a decorative layer using nylon, spandex and metal fiber as raw materials, to obtain a lace fabric; the lace fabric contains 20-25% of metal fiber, 14-18% of silk fiber, 12-18% of spandex, and the rest is nylon;

[0016] (3) Immersing the lace fabric in the antibacterial soaking solution, immersing under constant temperature oscillation, and drying to obtain the antibacterial lace fabric.

[0017] Furthermore, the antibacterial soaking liquid in step (1) comprises, by weight, 3-4 parts of natural plant extract, 1-2 parts of antibacterial agent, 5-6 parts of polycarboxylic acid finishing agent, 10-12 parts of accelerator, 1-2 parts of softener, and 73-88 parts of water.

[0018] Furthermore, in the step (1), the mass ratio of Amaranthus tricolor, Herba Lycopodii, Solanum nigrum and Angelica dahurica is 10:(1-4):(6-8):(12-15).

[0019] The antibacterial effect of lace fabrics made using commercially available antibacterial agents is not ideal. The present invention can improve the antibacterial effect of lace fabrics by adding natural plant extracts to the antibacterial soaking liquid. Natural plant extracts and silver ion antibacterial agents have complementary antibacterial mechanisms and have synergistic antibacterial effects. When the two ingredients are used together, the antibacterial effect is improved. However, the water washability of lace fabrics is not ideal at this time.

[0020] In order to improve the water absorption of lace fabric, further, in the step (1), the polycarboxylic acid finishing agent is a mixture of 1,2,3,4-butanetetracarboxylic acid, citric acid and succinic acid in a mass ratio of 1: (0.4-0.7): (1.3-1.5).

[0021] Furthermore, the preparation method of the accelerator is:

[0022] (1) 10 parts by weight of aminopolysaccharide quaternary ammonium salt, 12-15 parts by weight of 3-(2,3-epoxypropoxy)propyltrimethoxysilane, and 40-50 parts by weight of ethanol are mixed, silicone oil is added to a heating bath, the temperature is raised to 145-150° C., and the mixture is refluxed for reaction for 7-9 hours to obtain a mixed product;

[0023] (2) adding 4-7 parts by weight of chitosan oligosaccharide to 40-50 parts by weight of water to obtain a chitosan oligosaccharide solution,

[0024] (3) mixing the chitosan oligosaccharide solution and the mixed product, reacting at 55-60° C. for 4-6 hours to obtain a reaction solution, and concentrating the reaction solution under reduced pressure to 40-50% of the mass of the reaction solution to obtain a promoter.

[0025] In order to improve the washability of lace fabric, the present invention adds an accelerator to the antibacterial soaking liquid to improve the washability of lace fabric and maintain long-term antibacterial performance. The groups in the accelerator can form stronger chemical bonds with silver ions to fix the silver ions on the fabric, which are not easy to fall off even during the washing process; chitosan oligosaccharides can further increase the complexity of the fabric surface, provide more binding sites, and contribute to the stable adsorption and fixation of silver ions. The ingredients in the accelerator can form a protective film around the effective components of the plant extract, which can resist physical friction and chemical erosion during the washing process and maintain its antibacterial activity. At the same time, the amino groups on the accelerator are grafted onto the lace surface to improve the friction resistance and snagging resistance of the lace fabric.

[0026] The aminopolysaccharide quaternary ammonium salt was purchased from Hubei Xinyuhong Biopharmaceutical Technology Co., Ltd.

[0027] Furthermore, the softener in step (3) is a silicone softener. Model: Dow Corning MHX-1107-30CS.

[0028] Furthermore, the antibacterial agent in step (3) is a silver ion antibacterial agent purchased from Nanjing Tianshi Landun Biotechnology Co., Ltd., model: Silver Ion Antibacterial Agent-LD904.

[0029] Furthermore, the bath ratio of the immersion in step (3) is 1:40-50.

[0030] Furthermore, in the step (3), the temperature of the constant temperature oscillation is 30-35°C, the time is 60-80min, and the frequency is 180-200r / min.

[0031] Furthermore, in step (3), the drying temperature is 90-100° C. and the drying time is 10-15 min.

[0032] Compared with the prior art, the advantages and beneficial effects of the present invention are:

[0033] 1. The lace fabric prepared by the present invention has good antibacterial performance, strong water washability, and good resistance to snagging and friction.

[0034] 2. The present invention adds natural plant extracts to the antibacterial soaking liquid to improve the antibacterial effect of lace fabrics.

[0035] 3. The present invention adds an accelerator to the antibacterial soaking liquid to improve the water-washing resistance of the lace fabric and maintain long-term antibacterial performance. At the same time, the amino groups on the accelerator are grafted onto the lace surface to improve the friction resistance and snagging resistance of the lace fabric. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] The bacteria used in the present invention are all commercially available products:

[0038] Bacillus coagulans, accession number: SHBCC D10638, was purchased from Shanghai Microbiological Collection Center.

[0039] Lactobacillus paracasei, accession number: SHBCC D51555, was purchased from Shanghai Microbiological Collection Center.

[0040] Lactobacillus plantarum, accession number: CCTCC AB 2010210. Purchased from China Center for Type Culture Collection.

[0041] Lactobacillus brevis, accession number: SHBCC D14346, was purchased from Shanghai Microbiological Collection Center.

[0042] Lactobacillus helveticus, accession number: CCTCC AB 2010205; purchased from China Center for Type Culture Collection.

[0043] Bifidobacterium longum, deposit number: CCTCC HB 20082718. Purchased from China Center for Type Culture Collection.

[0044] Example 1

[0045] This embodiment provides a process for manufacturing an antibacterial lace fabric, comprising the following steps:

[0046] (1) stirring and mixing a natural plant extract, an antibacterial agent, a polycarboxylic acid finishing agent, an accelerator, a softener and water to obtain an antibacterial soaking liquid; the antibacterial soaking liquid comprises, by weight, 3.4 parts of the natural plant extract, 1.5 parts of the antibacterial agent, 5.4 parts of the polycarboxylic acid finishing agent, 11 parts of the accelerator, 1.7 parts of the softener and 82 parts of water;

[0047] The polycarboxylic acid finishing agent is a mixture of 1,2,3,4-butanetetracarboxylic acid, citric acid and succinic acid in a mass ratio of 1:0.6:1.4; the aminopolysaccharide quaternary ammonium salt is purchased from Hubei Xinyuhong Biopharmaceutical Technology Co., Ltd. The softener is an organic silicone softener, model: Dow Corning MHX-1107-30CS. The antibacterial agent is a silver ion antibacterial agent, purchased from Nanjing Tianshi Landun Biotechnology Co., Ltd., model: Silver Ion Antibacterial Agent-LD904.

[0048] (2) using silk fiber and metal fiber as raw materials to prepare a base layer, and using nylon, spandex and metal fiber as raw materials to prepare a decorative layer, thereby obtaining a lace fabric; the lace fabric contains 22% of metal fiber, 16% of silk fiber, 15% of spandex, and the rest is nylon;

[0049] (3) Immersing the lace fabric in the antibacterial soaking solution with a bath ratio of 1:45, soaking with constant temperature oscillation, the constant temperature oscillation temperature is 32°C, the time is 70 min, the frequency is 190 r / min, and drying, the drying temperature is 95°C, and the drying time is 12 min, to obtain the antibacterial lace fabric.

[0050] The preparation method of natural plant extract is:

[0051] S1: Mix Amaranthus tricolor, Herba Lysimachiae, Solanum nigrum and Angelica dahurica in a mass ratio of 10:3:7:14, and grind to a particle size of less than 100 meshes to obtain mixed plant micro powder;

[0052] S2: Add 14 parts by mass of water to 1 part by mass of the mixed plant micropowder, soak for 35 minutes, heat to 85°C, keep warm for 55 minutes, cool to room temperature, add 0.02 parts by mass of composite bacteria, and perform anaerobic fermentation at a temperature of 35°C and a fermentation time of 9 hours. After sterilization, a fermentation product is obtained; the composite bacteria is a mixture of Bacillus coagulans, Lactobacillus brevis and Bifidobacterium longum in a mass ratio of 1:0.4:1.6;

[0053] S3: placing the fermentation product into a microwave reactor, with a microwave power of 250 W and an extraction time of 1.5 h to obtain an extraction product;

[0054] S4: Filter the extracted product through a 0.22 μm filter membrane to obtain a filtrate, concentrate and dry to obtain a plant extract.

[0055] The preparation method of the accelerator is:

[0056] (1) 10 parts by weight of aminopolysaccharide quaternary ammonium salt, 14 parts by weight of 3-(2,3-epoxypropoxy)propyltrimethoxysilane, and 45 parts by weight of ethanol were mixed, silicone oil was added to a heating bath, and the temperature was raised to 148° C. and refluxed for 8 hours to obtain a mixed product;

[0057] (2) adding 6 parts by mass of chitosan oligosaccharide to 44 parts by mass of water to obtain a chitosan oligosaccharide solution,

[0058] (3) The chitosan oligosaccharide solution and the mixed product are mixed, reacted at 58° C. for 5 h to obtain a reaction solution, and the reaction solution is concentrated under reduced pressure to 45% of the mass of the reaction solution to obtain a promoter.

[0059] Example 2

[0060] This embodiment provides a process for manufacturing an antibacterial lace fabric, comprising the following steps:

[0061] (1) stirring and mixing a natural plant extract, an antibacterial agent, a polycarboxylic acid finishing agent, an accelerator, a softener and water to obtain an antibacterial soaking liquid; the antibacterial soaking liquid comprises, by weight, 3 parts of natural plant extract, 1 part of antibacterial agent, 5 parts of polycarboxylic acid finishing agent, 10 parts of accelerator, 1 part of softener and 73 parts of water;

[0062] The polycarboxylic acid finishing agent is a mixture of 1,2,3,4-butanetetracarboxylic acid, citric acid and succinic acid in a mass ratio of 1:0.4:1.3; the aminopolysaccharide quaternary ammonium salt is purchased from Hubei Xinyuhong Biomedical Technology Co., Ltd. The softener is an organic silicone softener, model: Dow Corning MHX-1107-30CS. The antibacterial agent is a silver ion antibacterial agent, purchased from Nanjing Tianshi Landun Biotechnology Co., Ltd., model: Silver Ion Antibacterial Agent-LD904.

[0063] (2) using silk fiber and metal fiber as raw materials to prepare a base layer, and using nylon, spandex and metal fiber as raw materials to prepare a decorative layer, thereby obtaining a lace fabric; the lace fabric contains 20% of the metal fiber, 14% of the silk fiber, 12% of the spandex, and the rest is nylon;

[0064] (3) Immersing the lace fabric in the antibacterial soaking solution with a bath ratio of 1:40, soaking with constant temperature oscillation, the constant temperature oscillation temperature is 30°C, the time is 60 min, the frequency is 180 r / min, and drying, the drying temperature is 90°C, and the drying time is 10 min, to obtain the antibacterial lace fabric.

[0065] The preparation method of natural plant extract is:

[0066] S1: Mix Amaranthus tricolor, Herba Lysimachiae, Solanum nigrum and Angelica dahurica in a mass ratio of 10:1:6:12, and grind to a particle size of less than 80 meshes to obtain mixed plant micro powder;

[0067] S2: Add 12 parts by mass of water to 1 part by mass of the mixed plant micropowder, soak for 30 minutes, heat to 80°C, keep warm for 50 minutes, cool to room temperature, add 0.01 parts by mass of composite bacteria, and perform anaerobic fermentation at a temperature of 34°C and a fermentation time of 8 hours. After sterilization, a fermentation product is obtained; the composite bacteria is a mixture of Bacillus coagulans, Lactobacillus brevis and Bifidobacterium longum in a mass ratio of 1:0.2:1.5;

[0068] S3: placing the fermentation product into a microwave reactor, with a microwave power of 200 W and an extraction time of 1 h to obtain an extraction product;

[0069] S4: Filter the extracted product through a 0.22 μm filter membrane to obtain a filtrate, concentrate and dry to obtain a plant extract.

[0070] The preparation method of the accelerator is:

[0071] (1) 10 parts by weight of aminopolysaccharide quaternary ammonium salt, 12 parts by weight of 3-(2,3-epoxypropoxy)propyltrimethoxysilane, and 40 parts by weight of ethanol were mixed, silicone oil was added to a heating bath, and the temperature was raised to 145° C. and refluxed for 7 hours to obtain a mixed product;

[0072] (2) adding 4 parts by mass of chitosan oligosaccharide to 40 parts by mass of water to obtain a chitosan oligosaccharide solution,

[0073] (3) The chitosan oligosaccharide solution and the mixed product are mixed, reacted at 55° C. for 4 hours to obtain a reaction solution, and the reaction solution is concentrated under reduced pressure to 40% of the mass of the reaction solution to obtain a promoter.

[0074] Example 3

[0075] This embodiment provides a process for manufacturing an antibacterial lace fabric, comprising the following steps:

[0076] (1) stirring and mixing a natural plant extract, an antibacterial agent, a polycarboxylic acid finishing agent, an accelerator, a softener and water to obtain an antibacterial soaking liquid; the antibacterial soaking liquid comprises, by weight, 4 parts of a natural plant extract, 2 parts of an antibacterial agent, 6 parts of a polycarboxylic acid finishing agent, 12 parts of an accelerator, 2 parts of a softener and 88 parts of water;

[0077] The polycarboxylic acid finishing agent is a mixture of 1,2,3,4-butanetetracarboxylic acid, citric acid and succinic acid in a mass ratio of 1:0.7:1.5; the aminopolysaccharide quaternary ammonium salt is purchased from Hubei Xinyuhong Biopharmaceutical Technology Co., Ltd. The softener is an organic silicone softener, model: Dow Corning MHX-1107-30CS. The antibacterial agent is a silver ion antibacterial agent, purchased from Nanjing Tianshi Landun Biotechnology Co., Ltd., model: Silver Ion Antibacterial Agent-LD904.

[0078] (2) using silk fiber and metal fiber as raw materials to prepare a base layer, and using nylon, spandex and metal fiber as raw materials to prepare a decorative layer, thereby obtaining a lace fabric; the lace fabric contains 25% of the metal fiber, 18% of the silk fiber, 18% of the spandex, and the rest is nylon;

[0079] (3) Immersing the lace fabric in the antibacterial soaking solution with a bath ratio of 1:50, soaking with constant temperature oscillation, the constant temperature oscillation temperature is 35°C, the time is 80 min, the frequency is 200 r / min, and drying, the drying temperature is 100°C, and the drying time is 15 min, to obtain antibacterial lace fabric.

[0080] The preparation method of natural plant extract is:

[0081] S1: Mix Amaranthus tricolor, Herba Lysimachiae, Solanum nigrum and Angelica dahurica in a mass ratio of 10:4:8:15, and grind to a particle size of less than 100 meshes to obtain mixed plant micro powder;

[0082] S2: Add 15 parts by mass of water to 1 part by mass of the mixed plant micropowder, soak for 40 minutes, heat to 90°C, keep warm for 60 minutes, cool to room temperature, add 0.03 parts by mass of composite bacteria, and perform anaerobic fermentation at a temperature of 37°C and a fermentation time of 10 hours. After sterilization, a fermentation product is obtained; the composite bacteria is a mixture of Bacillus coagulans, Lactobacillus brevis and Bifidobacterium longum in a mass ratio of 1:0.5:1.7;

[0083] S3: placing the fermentation product into a microwave reactor, with a microwave power of 300 W and an extraction time of 2 h to obtain an extraction product;

[0084] S4: Filter the extracted product through a 0.22 μm filter membrane to obtain a filtrate, concentrate and dry to obtain a plant extract.

[0085] The preparation method of the accelerator is:

[0086] (1) 10 parts by weight of aminopolysaccharide quaternary ammonium salt, 15 parts by weight of 3-(2,3-epoxypropoxy)propyltrimethoxysilane, and 50 parts by weight of ethanol were mixed, silicone oil was added to a heating bath, and the temperature was raised to 150° C. and refluxed for reaction for 9 hours to obtain a mixed product;

[0087] (2) adding 7 parts by mass of chitosan oligosaccharide to 50 parts by mass of water to obtain a chitosan oligosaccharide solution,

[0088] (3) The chitosan oligosaccharide solution and the mixed product are mixed, reacted at 60° C. for 6 hours to obtain a reaction solution, and the reaction solution is concentrated under reduced pressure to 50% of the mass of the reaction solution to obtain a promoter.

[0089] Comparative Example 1

[0090] The difference between this comparative example and Example 1 is that the antibacterial soaking liquid includes, by weight, 4.9 parts of antibacterial agent, 5.4 parts of polycarboxylic acid finishing agent, 11 parts of accelerator, 1.7 parts of softener, and 82 parts of water.

[0091] Comparative Example 2

[0092] The difference between this comparative example and Example 1 is that the antibacterial soaking liquid includes 4.9 parts of natural plant extract, 5.4 parts of polycarboxylic acid finishing agent, 11 parts of accelerator, 1.7 parts of softener and 82 parts of water in terms of mass.

[0093] Comparative Example 3

[0094] The difference between this comparative example and Example 1 is that the antibacterial soaking liquid includes, by weight, 1.5 parts of natural plant extract, 3.4 parts of antibacterial agent, 5.4 parts of polycarboxylic acid finishing agent, 11 parts of accelerator, 1.7 parts of softener, and 82 parts of water.

[0095] Comparative Example 4

[0096] The difference between this comparative example and Example 1 is that the polycarboxylic acid finishing agent in step (1) is a mixture of 1,2,3,4-butanetetracarboxylic acid, citric acid and succinic acid in a mass ratio of 1:1:1.

[0097] Comparative Example 5

[0098] The difference between this comparative example and Example 1 is:

[0099] The preparation method of the accelerator is as follows: 10 parts by mass of aminopolysaccharide quaternary ammonium salt, 14 parts by mass of 3-(2,3-epoxypropoxy)propyltrimethoxysilane, and 45 parts by mass of ethanol are mixed, silicone oil is added to a heating bath, the temperature is raised to 148° C., and refluxed for reaction for 8 hours to obtain the accelerator.

[0100] Comparative Example 6

[0101] The difference between this comparative example and Example 1 is that the preparation method of the accelerator is:

[0102] (1) adding 6 parts by mass of chitosan oligosaccharide to 44 parts by mass of water to obtain a chitosan oligosaccharide solution,

[0103] (2) The chitosan oligosaccharide solution and 14 parts by mass of 3-(2,3-epoxypropoxy)propyltrimethoxysilane were mixed and reacted at 58° C. for 5 h to obtain a reaction solution, and the reaction solution was concentrated under reduced pressure to 45% of the mass of the reaction solution to obtain an accelerator.

[0104] Comparative Example 7

[0105] The difference between this comparative example and Example 1 is that Amaranthus tricolor, Herba Lysimachiae, Solanum nigrum and Angelica dahurica are mixed in a mass ratio of 1:1:1:1.

[0106] Comparative Example 8

[0107] The difference between this comparative example and Example 1 is that the composite bacteria is a mixture of Bacillus coagulans, Lactobacillus brevis and Bifidobacterium longum in a mass ratio of 1:1:1.

[0108] Comparative Example 9

[0109] The difference between this comparative example and Example 1 is that the composite bacteria is a mixture of Lactobacillus paracasei, Lactobacillus plantarum and Lactobacillus helveticus in a mass ratio of 1:0.2:1.5.

[0110] Performance Testing

[0111] 1. Antibacterial property: Referring to GB / T20944.3-2008 standard, the antibacterial property of antibacterial fabric against Escherichia coli was tested by oscillation method. The inoculation concentration of Escherichia coli was 1*10 7 CFU / mL. After washing 50 times, the antibacterial activity was measured again.

[0112] 2. Friction resistance: refer to the Martindale method to measure the number of pilling.

[0113] 3. Snag resistance: refer to GB / T 11047-2008.

[0114] 4. Add PAN fabric with a weight of m0 into distilled water, stir at room temperature for 4 hours, then take out the fabric, weigh m when there is no obvious water droplet, and calculate the water absorption rate Q = (m-m0) / m0*100%.

[0115] Table 1 Performance test results

[0116]

[0117] It can be seen from the above performance test results that Examples 1-3 have excellent antibacterial effects, especially Example 1 has the most outstanding comprehensive performance, which is mainly due to the synergistic effects of multiple components.

[0118] However, the comparative examples did not adopt the necessary technical solutions, resulting in that the corresponding performance tests were significantly worse than those of the embodiments. In comparative examples 1-3, the ratio of the natural plant extract and the antibacterial agent was changed, and it can be seen that the antibacterial effect decreased, proving that the two-component solution has an important influence on the antibacterial effect. In comparative examples 5-6, the technical solution of not using the accelerator affected the water wash resistance effect. The above experimental results further prove the importance of the technical solution defined in the present invention for its technical effect.

[0119] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A process for producing antibacterial lace fabric, characterized in that: The following steps are involved: (1) mixing the natural plant extract, the antibacterial agent, the polycarboxylic acid finishing agent, the accelerator, the softener and water to obtain an antibacterial soaking liquid; Wherein, the preparation method of natural plant extract is: S1: Mix Amaranthus tricolor, Herba Lysimachiae, Solanum nigrum and Angelica dahurica, and grind them into a particle size of less than 80-100 mesh to obtain mixed plant micro powder; S2: Add 12-15 parts by weight of water to 1 part by weight of the mixed plant micropowder, soak for 30-40 minutes, heat to 80-90°C, keep warm for 50-60 minutes, cool to room temperature, add 0.01-0.03 parts by weight of composite bacteria, and perform anaerobic fermentation at a temperature of 34-37°C and a fermentation time of 8-10 hours. After sterilization, a fermentation product is obtained; the composite bacteria is a mixture of Bacillus coagulans, Lactobacillus brevis and Bifidobacterium longum in a mass ratio of 1: (0.2-0.5): (1.5-1.7); S3: placing the fermentation product into a microwave reactor with a microwave power of 200-300 W and an extraction time of 1-2 h to obtain an extraction product; S4: filtering the extracted product through a 0.22 μm filter membrane to obtain a filtrate, concentrating and drying the filtrate to obtain a plant extract; (2) preparing a base layer using silk fiber and metal fiber as raw materials, and preparing a decorative layer using nylon, spandex and metal fiber as raw materials, to obtain a lace fabric; the lace fabric contains 20-25% of metal fiber, 14-18% of silk fiber, 12-18% of spandex, and the rest is nylon; (3) Immersing the lace fabric in the antibacterial soaking solution, immersing under constant temperature oscillation, and drying to obtain the antibacterial lace fabric.

2. The process for producing antibacterial lace fabric according to claim 1, characterized in that: The antibacterial soaking liquid in step (1) comprises, by weight, 3-4 parts of natural plant extract, 1-2 parts of antibacterial agent, 5-6 parts of polycarboxylic acid finishing agent, 10-12 parts of accelerator, 1-2 parts of softener, and 73-88 parts of water.

3. The process for producing antibacterial lace fabric according to claim 1, characterized in that: In the step (1), the mass ratio of Amaranthus tricolor, Herba Lycopodii, Solanum nigrum and Angelica dahurica is 10:(1-4):(6-8):(12-15).

4. The process for producing antibacterial lace fabric according to claim 1, characterized in that: In the step (1), the polycarboxylic acid finishing agent is a mixture of 1,2,3,4-butanetetracarboxylic acid, citric acid and succinic acid in a mass ratio of 1: (0.4-0.7): (1.3-1.5).

5. The process for producing antibacterial lace fabric according to claim 1, characterized in that: The preparation method of the accelerator is: (1) 10 parts by weight of aminopolysaccharide quaternary ammonium salt, 12-15 parts by weight of 3-(2,3-epoxypropoxy)propyltrimethoxysilane, and 40-50 parts by weight of ethanol are mixed, silicone oil is added to a heating bath, the temperature is raised to 145-150° C., and the mixture is refluxed for reaction for 7-9 hours to obtain a mixed product; (2) adding 4-7 parts by weight of chitosan oligosaccharide to 40-50 parts by weight of water to obtain a chitosan oligosaccharide solution, (3) mixing the chitosan oligosaccharide solution and the mixed product, reacting at 55-60° C. for 4-6 hours to obtain a reaction solution, and concentrating the reaction solution under reduced pressure to 40-50% of the mass of the reaction solution to obtain a promoter.

6. The process for producing antibacterial lace fabric according to claim 1, characterized in that: The softener in step (3) is a silicone softener.

7. The process for producing antibacterial lace fabric according to claim 1, characterized in that: The antibacterial agent in step (3) is a silver ion antibacterial agent.

8. The process for producing antibacterial lace fabric according to claim 1, characterized in that: The bath ratio of the immersion in the step (3) is 1:40-50.

9. The process for producing antibacterial lace fabric according to claim 1, characterized in that: The temperature of the constant temperature oscillation in step (3) is 30-35°C, the time is 60-80min, and the frequency is 180-200r / min.

10. The process for producing antibacterial lace fabric according to claim 1, characterized in that: In the step (3), the drying temperature is 90-100° C. and the drying time is 10-15 min.

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