阅读说明：本技术 一种抗菌面料及其制备方法和应用 (Antibacterial fabric and preparation method and application thereof ) 是由 陈广川 于红光 吴新磊 于 2020-12-22 设计创作，主要内容包括：本发明提供了一种抗菌面料及其制备方法和应用,所述抗菌面料包括依次层叠的抗菌耐磨层、抗菌基布和抗菌防水层；所述制备方法包括：将抗菌纤维丝纺织成基布,并将所述基布置于含有抗菌整理液和织物整理液的抗菌混合溶液中,浸轧并烘干,得到抗菌基布；将抗菌耐磨层的原料制成抗菌耐磨涂料,并将抗菌防水层的制备原料制成抗菌防水涂料,然后将所述抗菌耐磨涂料和抗菌防水涂料分别喷涂到所述抗菌基布的两面,得到所述抗菌面料。本发明所述的抗菌面料的三层结构均具备抗菌功效,实现了面料的整体抗菌,还具备防水和自清洁的功能,面料的强度较高,适用于箱包面料的制备；其制备工艺科学高效,应用价值极高。(The invention provides an antibacterial fabric and a preparation method and application thereof, wherein the antibacterial fabric comprises an antibacterial wear-resistant layer, an antibacterial base cloth and an antibacterial waterproof layer which are sequentially stacked; the preparation method comprises the following steps: spinning antibacterial fiber yarns into base cloth, placing the base cloth into an antibacterial mixed solution containing an antibacterial finishing solution and a fabric finishing solution, padding and drying to obtain antibacterial base cloth; preparing raw materials of the antibacterial wear-resistant layer into antibacterial wear-resistant paint, preparing raw materials of the antibacterial waterproof layer into antibacterial waterproof paint, and then respectively spraying the antibacterial wear-resistant paint and the antibacterial waterproof paint on two sides of the antibacterial base cloth to obtain the antibacterial fabric. The three-layer structure of the antibacterial fabric has antibacterial effect, the whole antibacterial effect of the fabric is realized, the fabric also has waterproof and self-cleaning functions, the strength of the fabric is high, and the fabric is suitable for preparing the case fabric; the preparation process is scientific and efficient, and the application value is extremely high.)

1. The antibacterial fabric is characterized by comprising an antibacterial wear-resistant layer, an antibacterial base cloth and an antibacterial waterproof layer which are sequentially stacked.

2. The antibacterial fabric according to claim 1, wherein the antibacterial base fabric comprises antibacterial fiber filaments;

preferably, the raw materials for preparing the antibacterial fiber comprise a high polymer, a plasticizer and a photocatalytic antibacterial material;

preferably, the antibacterial fiber yarn comprises the following raw materials in parts by weight: 40-45 parts of high polymer, 4-8 parts of plasticizer and 3-5 parts of photocatalytic antibacterial material;

preferably, the high polymer comprises any one of polyethylene terephthalate, polybutylene terephthalate or polytrimethylene terephthalate or a combination of at least two of them;

preferably, the plasticizer comprises any one of propylene glycol, glycerin or butylene glycol or a combination of at least two thereof;

preferably, the photocatalytic antibacterial material comprises any one or a combination of at least two of silver-doped nano bismuth tungstate, silver-doped nano titanium dioxide or cerium-doped nano titanium dioxide.

3. The antibacterial fabric according to claim 1 or 2, wherein the antibacterial wear-resistant layer is prepared from the following raw materials in parts by weight: 90-95 parts of TPU resin, 0.1-0.5 part of dispersant, 0.3-0.7 part of antioxidant and 3-6 parts of antibacterial master batch;

preferably, the antibacterial waterproof layer comprises the following preparation raw materials in parts by weight: 90-95 parts of PVC resin, 0.5-0.8 part of dispersing agent, 0.1-0.5 part of antioxidant and 3-6 parts of antibacterial master batch;

preferably, the dispersing agents in the raw materials for preparing the antibacterial wear-resistant layer and the antibacterial waterproof layer are the same or different;

preferably, the dispersing agent comprises any one or a combination of at least two of vinyl triethoxysilane, calcium stearate, zinc stearate or methacryloxypropyl trimethoxysilane;

preferably, the antioxidants in the raw materials for preparing the antibacterial wear-resistant layer and the antibacterial waterproof layer are the same or different;

preferably, the antioxidant comprises any one or a combination of at least two of octadecyl beta- (4' -hydroxy-3 ' -5' -di-tert-butylphenyl) propionate, dilauryl thiodipropionate or distearyl thiodipropionate.

4. The preparation method of the antibacterial fabric according to any one of claims 1 to 3, characterized by comprising the following steps:

spinning antibacterial fiber yarns into base cloth, placing the base cloth into an antibacterial mixed solution containing an antibacterial finishing solution and a fabric finishing solution, padding and drying to obtain antibacterial base cloth;

preparing raw materials for preparing the antibacterial wear-resistant layer into antibacterial wear-resistant paint, preparing raw materials for preparing the antibacterial waterproof layer into antibacterial waterproof paint, and then respectively spraying the antibacterial wear-resistant paint and the antibacterial waterproof paint on two sides of the antibacterial base fabric to obtain the antibacterial fabric.

5. The method for preparing the antibacterial fiber yarn according to claim 4, comprising the following steps of: mixing the high polymer, the plasticizer and the photocatalytic antibacterial material, melting and spinning to prepare antibacterial fiber yarns;

preferably, the melting temperature is 250-270 ℃, and preferably 258-263 ℃.

6. The preparation method according to claim 4 or 5, wherein the padding allowance of the padded base fabric is 65-75%;

preferably, the drying temperature is 80-100 ℃;

preferably, the drying time is 5-30 min;

preferably, the spraying is performed by a high pressure spraying device;

preferably, the high pressure spraying device comprises an automatic plastic spraying machine.

7. The preparation method according to any one of claims 4 to 6, characterized in that the mass ratio of the antibacterial finishing liquid to the fabric finishing liquid in the antibacterial mixed solution is (1-3): 9;

preferably, the raw materials for preparing the antibacterial finishing liquid comprise, by weight, 2-6 parts of nano silver, 1-4 parts of nano zinc oxide, 1-5 parts of erbium-doped nano titanium dioxide, 1-5 parts of a silane coupling agent, 0.5-1 part of a dispersing agent, 10-15 parts of chitosan and 77-90 parts of deionized water;

preferably, the silane coupling agent comprises any one or a combination of at least two of aminopropyltriethoxysilane, glycidoxypropyltrimethoxysilane, methacryloxypropyltrimethoxysilane, hexadecyltrimethoxysilane and polydimethylsiloxane;

preferably, the dispersant in the antibacterial finishing liquid comprises any one or a combination of at least two of polyacrylamide, methyl amyl alcohol or fatty acid polyglycol ester;

preferably, the preparation method of the antibacterial finishing liquid comprises the following steps: mixing nano silver, nano zinc oxide, erbium-doped nano titanium dioxide, a silane coupling agent, a dispersing agent and deionized water, heating, performing ultrasonic emulsification under a constant temperature condition, adding chitosan, and dispersing to obtain the antibacterial finishing liquid;

preferably, the heating temperature is 80-100 ℃, and preferably 90 ℃;

preferably, the time of ultrasonic emulsification is 20-40 min, preferably 30 min.

8. The preparation method of any one of claims 4 to 7, wherein the preparation method of the antibacterial wear-resistant coating is as follows:

mixing TPU resin, antibacterial master batch, a dispersing agent and an antioxidant, and melting to obtain an antibacterial wear-resistant coating;

preferably, the melting temperature is 180-205 ℃;

preferably, the preparation method of the antibacterial waterproof coating comprises the following steps:

mixing PVC resin, antibacterial master batch, a dispersing agent and an antioxidant, and heating and melting to obtain the antibacterial waterproof coating;

preferably, the heating and melting temperature is 170-200 ℃.

9. The preparation method according to any one of claims 4 to 8, characterized by specifically comprising the steps of:

(1) mixing a high polymer, a plasticizer and a photocatalytic antibacterial material, melting at 250-270 ℃, spinning to prepare antibacterial fiber yarns, and spinning the antibacterial fiber yarns into base cloth;

(2) mixing nano silver, nano zinc oxide, erbium-doped nano titanium dioxide, a silane coupling agent, a dispersing agent and deionized water, heating to 80-100 ℃, performing ultrasonic emulsification for 20-40 min under the condition of constant temperature, adding chitosan, dispersing to obtain an antibacterial finishing liquid, and mixing the antibacterial finishing liquid and a fabric finishing liquid according to the mass ratio of (1-3) to (9) to obtain an antibacterial mixed solution;

(3) then, the base cloth is placed in the antibacterial mixed solution for padding until the padding residual rate of the base cloth is 65% -75%, and the base cloth is dried for 5-30 min at the temperature of 80-100 ℃ to obtain the antibacterial base cloth;

(4) mixing TPU resin, antibacterial master batch, a dispersing agent and an antioxidant, and melting at 180-205 ℃ to obtain an antibacterial wear-resistant coating;

mixing PVC resin, antibacterial master batch, a dispersing agent and an antioxidant, and heating and melting at 170-200 ℃ to obtain the antibacterial waterproof coating;

(5) and respectively spraying the antibacterial wear-resistant coating and the antibacterial waterproof coating on two sides of the antibacterial base fabric through an automatic plastic spraying machine to form an antibacterial wear-resistant layer and an antibacterial waterproof layer, so as to obtain the antibacterial fabric.

10. Use of the antibacterial fabric of any one of claims 1 to 3 for the manufacture of luggage articles;

preferably, the case comprises any one of a bag, a handbag, a rucksack, a messenger bag or a draw-bar case.

Technical Field

The invention belongs to the technical field of case fabrics, and particularly relates to an antibacterial fabric and a preparation method and application thereof.

Background

With the progress of science and technology, people have higher and higher requirements on the case fabric, and the improvement on the case fabric mainly focuses on the improvement on the physical properties of the fabric at present, such as improvement on the wear resistance, comfort and the like of the fabric, but the improvement on the multifunction of the fabric is relatively less.

In the prior art, most of case fabrics are prepared by a textile technology, and the porous shape of the textile fabric and the chemical structure of high molecular polymers in textile raw materials are beneficial to the attachment and reproduction of microorganisms, so that fibers are polluted, and the adverse effect on the health of human bodies is caused. The antibacterial fabric can keep the fabric sanitary, prevent microorganisms such as bacteria from breeding on the surface of the fabric, and reduce the risk of the microorganisms spreading again, so that corresponding research and development work has important significance and practical value.

At present, some reports about antibacterial fabrics exist. CN205866289U discloses antibiotic anticorrosive fire-retardant schoolbag surface fabric, including the flame retardant fiber basic unit, the both sides blending of flame retardant fiber basic unit has the anticorrosive coating, the inside weaving of flame retardant fiber basic unit has antibiotic yarn, antibiotic yarn includes vegetable fibre and antibiotic fibre, antibiotic fibre cladding is in the vegetable fibre's the outside. By arranging the antibacterial fiber on the flame-retardant fiber base layer, the prepared schoolbag fabric has an antibacterial function. Because only the part contacted with the antibacterial yarn can generate the antibacterial action, the antibacterial effect of the fabric can be greatly influenced by arranging the antibacterial yarn in the flame-retardant fiber base layer.

CN109532142A discloses a long-acting antibacterial fabric containing copper ion fibers, which is formed by compounding a natural fiber net and an antibacterial fiber net up and down, wherein the antibacterial fiber net comprises copper ion fibers with an antibacterial function, and a polyurethane antibacterial film is pressed between the natural fiber net and the antibacterial fiber net. By mixing copper ion fibers into the fibers and arranging the polyurethane antibacterial film, the fabric has strong antibacterial performance, and the antibacterial lasting force is also improved. However, the fiber raw materials of the fabric are all natural fibers, so that the fabric is poor in wear resistance, not suitable for products with requirements on the wear resistance of the fabric, and narrow in application range.

At present, most of the existing antibacterial fabrics have the problems of poor antibacterial effect, poor antibacterial durability and relatively single function. How to provide an antibacterial fabric, while realizing that antibacterial effect is better, antibiotic persistence is better, possess multiple functions, the range of application is wider, has become the problem that awaits solution.

Disclosure of Invention

Aiming at the defects and the actual requirements of the prior art, the invention provides the antibacterial fabric and the preparation method and the application thereof, the antibacterial wear-resistant layer, the antibacterial base cloth and the antibacterial waterproof layer are sequentially stacked, the three-layer structure has an antibacterial function, and the antibacterial effect of the fabric is better; the antibacterial waterproof layer enables the fabric to have a waterproof function, accumulation of pathogenic microorganisms such as bacteria and fungi on the surface of the fabric can be reduced, and the antibacterial effect of the fabric is further improved; the antibacterial wear-resistant layer prolongs the service life of the fabric, and the practicability is higher.

In order to achieve the purpose, the invention adopts the following technical scheme:

in a first aspect, the invention provides an antibacterial fabric, which comprises an antibacterial wear-resistant layer, an antibacterial base fabric and an antibacterial waterproof layer which are sequentially stacked.

According to the invention, the antibacterial fiber yarns with the antibacterial function are woven into the base cloth, the base cloth is formed and then is placed in the antibacterial mixed solution for padding, and the two steps are mutually matched, so that the prepared antibacterial base cloth has a better antibacterial effect; the antibacterial waterproof layer enables the antibacterial fabric to have waterproof and self-cleaning functions, dust particles can be taken away when liquid rolls on the surface of the fabric, and pollutants deposited on the surface can be decomposed by illumination catalysis in cooperation with a photocatalyst in the coating, so that accumulation of pathogenic microorganisms on the surface of the fabric can be reduced, and the microorganisms are difficult to reproduce; the coating of the antibacterial wear-resistant layer also contains photocatalyst, so that the service life of the fabric is prolonged while the fabric is effectively antibacterial, and the application value is higher; the three-layer structure of the antibacterial fabric has an antibacterial function, and the overall antibacterial effect of the fabric is achieved.

Preferably, the antibacterial base fabric comprises antibacterial fiber filaments.

Preferably, the raw materials for preparing the antibacterial fiber comprise a high polymer, a plasticizer and a photocatalytic antibacterial material.

Preferably, the weight part of the high polymer in the raw material for preparing the antibacterial fiber yarn is 40-45 parts, for example, 40 parts, 40.5 parts, 41 parts, 41.5 parts, 42 parts, 42.5 parts, 43 parts, 43.5 parts, 44 parts, 44.5 parts or 45 parts.

Preferably, the weight part of the plasticizer in the raw material for preparing the antibacterial fiber yarn is 4-8 parts, for example, 4 parts, 4.5 parts, 5 parts, 5.5 parts, 6 parts, 6.5 parts, 7 parts, 7.5 parts or 8 parts.

Preferably, the weight part of the photocatalytic antibacterial material in the antibacterial fiber preparation raw material is 3-5 parts, for example, 3 parts, 3.5 parts, 4 parts, 4.5 parts or 5 parts.

Preferably, the antibacterial fiber yarn comprises the following raw materials in parts by weight: 40-45 parts of high polymer, 4-8 parts of plasticizer and 3-5 parts of photocatalytic antibacterial material.

According to the invention, through reasonable proportioning of the raw material components, the prepared antibacterial cellosilk has a good antibacterial effect, and the cellosilk is more firm and durable; if the addition amount of the photocatalytic antibacterial material is less than 3 parts, the antibacterial capability of the cellosilk is poor; if the amount of the polymer is less than 40 parts and the amount of the plasticizer is less than 4 parts, the strength of the fiber yarn is reduced, and the resulting fabric is easily damaged, resulting in poor applicability.

Preferably, the high polymer comprises any one of polyethylene terephthalate, polybutylene terephthalate or polytrimethylene terephthalate or a combination of at least two thereof, for example, polyethylene terephthalate or a combination of polybutylene terephthalate and polytrimethylene terephthalate.

Preferably, the plasticizer comprises any one of propylene glycol, glycerol or butylene glycol or a combination of at least two thereof, and may be, for example, a combination of propylene glycol and glycerol or a combination of butylene glycol and propylene glycol.

Preferably, the photocatalytic antibacterial material comprises any one or a combination of at least two of silver-doped nano bismuth tungstate, silver-doped nano titanium dioxide or cerium-doped nano titanium dioxide, and can be silver-doped nano bismuth tungstate or a combination of silver-doped nano titanium dioxide and cerium-doped nano titanium dioxide, for example.

Preferably, the weight part of the TPU (thermoplastic polyurethane elastomer rubber) resin in the raw material for preparing the antibacterial wear-resistant layer is 90-95 parts, such as 90 parts, 90.5 parts, 91 parts, 91.5 parts, 92 parts, 92.5 parts, 93 parts, 93.5 parts, 94 parts, 94.5 parts or 95 parts.

Preferably, the weight part of the dispersant in the raw materials for preparing the antibacterial wear-resistant layer is 0.1-0.5 part, and may be 0.1 part, 0.2 part, 0.3 part, 0.4 part or 0.5 part, for example.

Preferably, the weight part of the antioxidant in the raw materials for preparing the antibacterial wear-resistant layer is 0.3-0.7 part, and may be 0.3 part, 0.4 part, 0.5 part, 0.6 part or 0.7 part, for example.

Preferably, the weight part of the antibacterial master batch in the raw material for preparing the antibacterial wear-resistant layer is 3-6 parts, for example, 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts, 5.5 parts or 6 parts.

Preferably, the antibacterial wear-resistant layer comprises the following raw materials in parts by weight: 90-95 parts of TPU resin, 0.1-0.5 part of dispersant, 0.3-0.7 part of antioxidant and 3-6 parts of antibacterial master batch.

Preferably, the weight part of the PVC (polyvinyl chloride) resin in the raw material for preparing the antibacterial waterproof layer is 90 to 95 parts, for example, 90 parts, 90.5 parts, 91 parts, 91.5 parts, 92 parts, 92.5 parts, 93 parts, 93.5 parts, 94 parts, 94.5 parts or 95 parts.

Preferably, the weight part of the dispersant in the raw materials for preparing the antibacterial waterproof layer is 0.5-0.8 part, for example, 0.5 part, 0.6 part, 0.7 part or 0.8 part.

Preferably, the weight part of the antioxidant in the raw materials for preparing the antibacterial waterproof layer is 0.1-0.5 part, and may be, for example, 0.1 part, 0.2 part, 0.3 part, 0.4 part or 0.5 part.

Preferably, the weight part of the antibacterial master batch in the raw materials for preparing the antibacterial waterproof layer is 3-6 parts, for example, 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts, 5.5 parts or 6 parts.

Preferably, the antibacterial waterproof layer comprises the following preparation raw materials in parts by weight: 90-95 parts of PVC resin, 0.5-0.8 part of dispersing agent, 0.1-0.5 part of antioxidant and 3-6 parts of antibacterial master batch.

Preferably, the dispersing agents in the raw materials for preparing the antibacterial wear-resistant layer and the antibacterial waterproof layer are the same or different.

Preferably, the dispersant comprises any one or a combination of at least two of vinyltriethoxysilane, calcium stearate, zinc stearate or methacryloxypropyltrimethoxysilane, which may be, for example, a combination of vinyltriethoxysilane, calcium stearate or zinc stearate and methacryloxypropyltrimethoxysilane.

Preferably, the antioxidants in the raw materials for preparing the antibacterial wear-resistant layer and the antibacterial waterproof layer are the same or different.

Preferably, the antioxidant comprises any one or a combination of at least two of octadecyl beta- (4 '-hydroxy-3' -5 '-di-tert-butylphenyl) propionate, dilauryl thiodipropionate or distearyl thiodipropionate, and may be, for example, octadecyl beta- (4' -hydroxy-3 '-5' -di-tert-butylphenyl) propionate or a combination of dilauryl thiodipropionate and distearyl thiodipropionate.

Preferably, the mass percentage of the polymer resin in the raw material for preparing the antibacterial masterbatch is 90% to 94%, for example, 90%, 90.5%, 91%, 91.5%, 92%, 92.5%, 93%, 93.5% or 94%.

Preferably, the mass percentage of the photocatalyst in the raw material for preparing the antibacterial master batch is 4% to 6%, for example, 4%, 4.5%, 5%, 5.5% or 6%.

Preferably, the surfactant is 1% to 4% by mass of the raw material for preparing the antibacterial mother particle, and may be, for example, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, or 4%.

Preferably, the mass percentage of the dispersant in the raw material for preparing the antibacterial mother particle is 0.1% to 0.4%, and may be, for example, 0.1%, 0.15%, 0.2%, 0.25%, 0.3%, 0.35%, or 4%.

Preferably, the antibacterial wear-resistant layer and the antibacterial waterproof layer are different in the preparation raw materials of the antibacterial master batch, and the main difference is that the types of the polymer resins of the two antibacterial master batches are different.

Preferably, the raw materials for preparing the antibacterial master batch comprise, by mass, 100% of polymer resin, 4% to 6% of photocatalyst, 1% to 4% of surfactant and 0.1% to 0.4% of dispersant.

Preferably, the photocatalyst comprises silver-doped nano bismuth tungstate and/or silver-doped nano titanium dioxide.

Preferably, the surfactant comprises any one of or a combination of at least two of alkylphenol ethoxylates, fatty alcohol ethoxylates, fatty acid ethoxylates or polyoxyethylene amides, and may be, for example, alkylphenol ethoxylates, fatty alcohol ethoxylates or a combination of fatty acid ethoxylates and polyoxyethylene amides.

Preferably, the dispersing agents in the raw materials for preparing the antibacterial master batch, the antibacterial wear-resistant layer and the antibacterial waterproof layer are the same or different.

Preferably, the preparation method of the antibacterial masterbatch comprises the following steps:

mixing the polymer resin, the photocatalyst, the surfactant and the dispersing agent, extruding the mixture into strips by using a double-screw extruder, cutting the strips into granules, and drying the granules to obtain the antibacterial master batch.

Preferably, the drying temperature is 80-100 ℃, for example, 80 ℃, 81 ℃, 82 ℃, 83 ℃, 84 ℃, 85 ℃, 86 ℃, 87 ℃, 88 ℃, 89 ℃, 90 ℃, 91 ℃, 92 ℃, 93 ℃, 94 ℃, 95 ℃, 96 ℃, 97 ℃, 98 ℃, 99 ℃ or 100 ℃.

In a second aspect, the present invention provides a method for preparing the antibacterial fabric in the first aspect, where the method for preparing the antibacterial fabric includes:

spinning antibacterial fiber yarns into base cloth, placing the base cloth into an antibacterial mixed solution containing an antibacterial finishing solution and a fabric finishing solution, padding and drying to obtain antibacterial base cloth;

preparing raw materials for preparing the antibacterial wear-resistant layer into antibacterial wear-resistant paint, preparing raw materials for preparing the antibacterial waterproof layer into antibacterial waterproof paint, and then respectively spraying the antibacterial wear-resistant paint and the antibacterial waterproof paint on two sides of the antibacterial base fabric to obtain the antibacterial fabric.

In the invention, the antibacterial fiber contains a photocatalytic antibacterial material, has an antibacterial function, is padded in an antibacterial mixed solution after being prepared into a base cloth, and further increases the antibacterial capacity of the antibacterial base cloth; the three-layer structure of the antibacterial fabric prepared by the method has an antibacterial function, the limitation that only the part in contact with the antibacterial layer has an antibacterial effect in the prior art is overcome, the integral antibacterial effect of the fabric is realized, the fabric also has the waterproof and self-cleaning effects, the fabric strength is better, and the application value is higher.

Preferably, the preparation method of the antibacterial fiber yarn comprises the following steps: mixing the high polymer, the plasticizer and the photocatalytic antibacterial material, melting and spinning to prepare the antibacterial fiber yarn.

Preferably, the melting temperature is 250-270 ℃, for example, 250 ℃, 251 ℃, 252 ℃, 253 ℃, 254 ℃, 255 ℃, 256 ℃, 257 ℃, 258 ℃, 259 ℃, 260 ℃, 261 ℃, 262 ℃, 263 ℃, 264 ℃, 265 ℃, 266 ℃, 267 ℃, 268 ℃, 269 ℃ or 270 ℃, preferably 258-263 ℃.

Preferably, the padding allowance of the base fabric after padding is 65% to 75%, and may be 65%, 66%, 67%, 68%, 69%, 70%, 71%, 72%, 73%, 74% or 75%, for example.

Preferably, the drying temperature is 80-100 ℃, for example, 80 ℃, 81 ℃, 82 ℃, 83 ℃, 84 ℃, 85 ℃, 86 ℃, 87 ℃, 88 ℃, 89 ℃, 90 ℃, 91 ℃, 92 ℃, 93 ℃, 94 ℃, 95 ℃, 96 ℃, 97 ℃, 98 ℃, 99 ℃ or 100 ℃.

Preferably, the drying time is 5-30 min, for example, 5min, 6min, 7min, 8min, 9min, 10min, 11min, 12min, 13min, 14min, 15min, 16min, 17min, 18min, 19min, 20min, 21min, 22min, 23min, 24min, 25min, 26min, 27min, 28min, 29min or 30 min.

Preferably, the spraying is performed by a high pressure spraying device.

Preferably, the high pressure spraying device comprises an automatic plastic spraying machine.

Preferably, the mass ratio of the antibacterial finishing liquid to the fabric finishing liquid in the antibacterial mixed solution is (1-3): 9, and for example, the mass ratio can be 1:9, 1.5:9, 2:9, 2.5:9 or 3: 9.

Preferably, the weight part of the nano silver in the raw material for preparing the antibacterial finishing liquid is 2-6 parts, for example, 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts, 5.5 parts or 6 parts.

Preferably, the weight part of the nano zinc oxide in the raw material for preparing the antibacterial finishing liquid is 1-4 parts, for example, 1 part, 1.5 parts, 2 parts, 2.5 parts, 3 parts, 3.5 parts or 4 parts.

Preferably, the weight part of the erbium-doped nano titanium dioxide in the raw material for preparing the antibacterial finishing liquid is 1-5 parts, and may be 1 part, 1.5 parts, 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4 parts, 4.5 parts or 5 parts, for example.

Preferably, the silane coupling agent is 1 to 5 parts by weight, for example, 1 part, 1.5 parts, 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4 parts, 4.5 parts or 5 parts, in the raw material for preparing the antibacterial finishing liquid.

Preferably, the weight part of the dispersant in the raw materials for preparing the antibacterial finishing liquid is 0.5-1 part, and may be, for example, 0.5 part, 0.6 part, 0.7 part, 0.8 part, 0.9 part or 1 part.

Preferably, the weight part of the chitosan in the raw material for preparing the antibacterial finishing liquid is 10-15 parts, such as 10 parts, 10.5 parts, 11 parts, 11.5 parts, 12 parts, 12.5 parts, 13 parts, 13.5 parts, 14 parts, 14.5 parts or 15 parts.

Preferably, the weight part of the deionized water in the raw material for preparing the antibacterial finishing liquid is 77-90 parts, and may be 77 parts, 78 parts, 79 parts, 80 parts, 81 parts, 82 parts, 83 parts, 84 parts, 85 parts, 86 parts, 87 parts, 88 parts, 89 parts or 90 parts, for example.

Preferably, the antibacterial finishing liquid comprises 2-6 parts by weight of nano silver, 1-4 parts by weight of nano zinc oxide, 1-5 parts by weight of erbium-doped nano titanium dioxide, 1-5 parts by weight of silane coupling agent, 0.5-1 part by weight of dispersant, 10-15 parts by weight of chitosan and 77-90 parts by weight of deionized water.

Preferably, the silane coupling agent includes any one or a combination of at least two of aminopropyltriethoxysilane, glycidoxypropyltrimethoxysilane, methacryloxypropyltrimethoxysilane, hexadecyltrimethoxysilane, or polydimethylsiloxane, and may be, for example, aminopropyltriethoxysilane, a combination of glycidoxypropyltrimethoxysilane and methacryloxypropyltrimethoxysilane, or a combination of hexadecyltrimethoxysilane and polydimethylsiloxane.

Preferably, the dispersant in the antibacterial finishing liquid comprises any one or a combination of at least two of polyacrylamide, methyl amyl alcohol or fatty acid polyglycol ester, and can be the combination of polyacrylamide or methyl amyl alcohol and fatty acid polyglycol ester.

Preferably, the preparation method of the antibacterial finishing liquid comprises the following steps: mixing nano silver, nano zinc oxide, erbium-doped nano titanium dioxide, a silane coupling agent, a dispersing agent and deionized water, heating, performing ultrasonic emulsification under a constant temperature condition, adding chitosan, and dispersing to obtain the antibacterial finishing liquid.

Preferably, the heating temperature is 80-100 ℃, for example, can be 80 ℃, 81 ℃, 82 ℃, 83 ℃, 84 ℃, 85 ℃, 86 ℃, 87 ℃, 88 ℃, 89 ℃, 90 ℃, 91 ℃, 92 ℃, 93 ℃, 94 ℃, 95 ℃, 96 ℃, 97 ℃, 98 ℃, 99 ℃ or 100 ℃, preferably 90 ℃.

Preferably, the time of the ultrasonic emulsification is 20-40 min, for example, 20min, 21min, 22min, 23min, 24min, 25min, 26min, 27min, 28min, 29min, 30min, 31min, 32min, 33min, 34min, 35min, 36min, 37min, 38min, 39min or 40min, preferably 30 min.

Preferably, the preparation method of the antibacterial wear-resistant coating comprises the following steps:

and mixing and melting the TPU resin, the antibacterial master batch, the dispersing agent and the antioxidant to obtain the antibacterial wear-resistant coating.

Preferably, the melting temperature is 180 ~ 205 ℃, for example can be 180 ℃, 181 ℃, 182 ℃, 183 ℃, 184 ℃, 185 ℃, 186 ℃, 187 ℃, 188 ℃, 189 ℃, 190 ℃, 191 ℃, 192 ℃, 193 ℃, 194 ℃, 195 ℃, 196 ℃, 197 ℃, 198 ℃, 199 ℃, 200 ℃, 201 ℃, 202 ℃, 203 ℃, 204 ℃ or 205 ℃.

Preferably, the preparation method of the antibacterial waterproof coating comprises the following steps:

and mixing the PVC resin, the antibacterial master batch, the dispersing agent and the antioxidant, and heating and melting to obtain the antibacterial waterproof coating.

Preferably, the heating and melting temperature is 170-200 ℃, for example, 170 ℃, 171 ℃, 172 ℃, 173 ℃, 174 ℃, 175 ℃, 176 ℃, 177 ℃, 178 ℃, 179 ℃, 180 ℃, 181 ℃, 182 ℃, 183 ℃, 184 ℃, 185 ℃, 186 ℃, 187 ℃, 188 ℃, 189 ℃, 190 ℃, 191 ℃, 192 ℃, 193 ℃, 194 ℃, 195 ℃, 196 ℃, 197 ℃, 198 ℃, 199 ℃ or 200 ℃.

As a preferred technical scheme, the preparation method of the antibacterial fabric specifically comprises the following steps:

(1) mixing a high polymer, a plasticizer and a photocatalytic antibacterial material, melting at 250-270 ℃, spinning to prepare antibacterial fiber yarns, and spinning the antibacterial fiber yarns into base cloth;

(2) mixing nano silver, nano zinc oxide, erbium-doped nano titanium dioxide, a silane coupling agent, a dispersing agent and deionized water, heating to 80-100 ℃, performing ultrasonic emulsification for 20-40 min under the condition of constant temperature, adding chitosan, dispersing to obtain an antibacterial finishing liquid, and mixing the antibacterial finishing liquid and a fabric finishing liquid according to the mass ratio of (1-3) to (9) to obtain an antibacterial mixed solution;

(3) then, the base cloth is placed in the antibacterial mixed solution for padding until the padding residual rate of the base cloth is 65% -75%, and the base cloth is dried for 5-30 min at the temperature of 80-100 ℃ to obtain the antibacterial base cloth;

(4) mixing TPU resin, antibacterial master batch, a dispersing agent and an antioxidant, and melting at 180-205 ℃ to obtain an antibacterial wear-resistant coating;

mixing PVC resin, antibacterial master batch, a dispersing agent and an antioxidant, and heating and melting at 170-200 ℃ to obtain the antibacterial waterproof coating;

(5) and respectively spraying the antibacterial wear-resistant coating and the antibacterial waterproof coating on two sides of the antibacterial base fabric through an automatic plastic spraying machine to form an antibacterial wear-resistant layer and an antibacterial waterproof layer, so as to obtain the antibacterial fabric.

In a third aspect, the invention provides a use of the antibacterial fabric of the first aspect in the preparation of luggage articles.

According to the invention, the antibacterial fabric prepared by the method comprises three layers of structures, namely an antibacterial wear-resistant layer, an antibacterial base cloth and an antibacterial waterproof layer, and the three layers of structures have antibacterial capability.

Preferably, the case comprises any one of a bag, a handbag, a rucksack, a messenger bag or a draw-bar case.

Compared with the prior art, the invention has the following beneficial effects:

(1) the antibacterial fabric prepared by the invention comprises three layers of structures, namely an antibacterial wear-resistant layer, an antibacterial base cloth and an antibacterial waterproof layer, which are sequentially stacked, wherein the three layers of structures have antibacterial efficacy, so that the technical defect that the antibacterial fabric only has the antibacterial efficacy at the part contacting with the antibacterial layer in the prior art is overcome, the overall antibacterial property of the fabric is realized, and the antibacterial performance is better and more durable;

(2) the invention prepares the antibacterial fiber filaments by adding antibacterial components in the fiber spinning process, weaves the antibacterial fiber filaments into the antibacterial base cloth, then carries out antibacterial and antiviral after-treatment on the antibacterial base cloth, then respectively sprays an antibacterial wear-resistant layer and an antibacterial waterproof layer on the two sides of the antibacterial base cloth, and carries out multiple antibacterial treatment, so that the prepared antibacterial fabric has excellent antibacterial, antiviral and antifungal effects, the antibacterial rate to staphylococcus aureus is not lower than 99.19 percent, the antibacterial rate to escherichia coli is not lower than 99.26 percent, the antibacterial rate to candida albicans is not lower than 99.16 percent, the antiviral activity to H1N1 is not lower than 99.14 percent, the antiviral activity to H3N2 is not lower than 99.09 percent, the antifungal grade is 0 grade, better antibacterial and antiviral effects can be produced by optimizing the production process, the antibacterial rate to staphylococcus aureus is more than 99.67 percent, the antibacterial rate to escherichia coli is greater than 99.69%, the antibacterial rate to candida albicans is greater than 99.60%, the antiviral activity rate to H1N1 is greater than 99.53%, the antiviral activity rate to H3N2 is greater than 99.54%, and the application value is better and wider;

(3) according to the invention, the antibacterial waterproof layer formed by spraying the antibacterial waterproof coating on one side of the base fabric has waterproof and self-cleaning capabilities, the waterproof grade can reach 5, water drops can roll on the surface of the fabric, so that when internal articles are prevented from being soaked, dust and pathogenic microorganisms gathered on the surface can be taken away, and by matching with a photocatalyst in raw materials, organic pollutants deposited on the surface can be catalytically degraded under the condition of light, so that the fabric keeps clean and sanitary, meanwhile, microorganisms such as bacteria and mildew attached to the surface of the fabric are difficult to propagate, viruses are inactivated, and the antibacterial, mildew-proof and antiviral capabilities of the fabric are further increased;

(4) according to the invention, the antibacterial wear-resistant coating is sprayed on the other side of the base fabric, so that the strength of the antibacterial fabric is increased by the formed antibacterial wear-resistant layer, the prepared antibacterial fabric is more firm and durable, and the antibacterial fabric can be applied to the preparation of hand bags, backpack bags, single shoulder bags, messenger bags, waist bags and various draw-bar box fabrics, and has a wider application range;

(5) the preparation method of the antibacterial fabric is scientific and reasonable, efficient and energy-saving, does not need a very strict production environment, can realize industrial large-scale production, and has practical application value.

Detailed Description

To further illustrate the technical means and effects of the present invention, the present invention is further described with reference to the following examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention.

The examples do not show the specific techniques or conditions, according to the technical or conditions described in the literature in the field, or according to the product specifications. The reagents or apparatus used are conventional products commercially available from normal sources, not indicated by the manufacturer.

Raw materials:

polyethylene terephthalate, polybutylene terephthalate, and polypropylene terephthalate were purchased from Yueagle Plastic materials, Inc., of Dongguan;

silver-doped nano titanium dioxide, silver-doped nano bismuth tungstate, cerium-doped nano titanium dioxide and erbium-doped nano titanium dioxide are purchased from Nanjing Youzkyo environmental protection technology GmbH;

TPU resin purchased from Wuxi Taize plastication Co., Ltd under the brand number 1498;

the PVC resin is purchased from chemical products Limited of Henan Haochuan, and the brand is SG 5;

octadecyl beta- (4' -hydroxy-3 ' -5' -di-tert-butylphenyl) propionate was purchased from Tianmen Ganchang chemical Co., Ltd;

methylpentanol, propylene glycol, glycerol, butylene glycol, dilauryl thiodipropionate, distearyl thiodipropionate, aminopropyltriethoxysilane, glycidoxypropyltrimethoxysilane, methacryloxypropyltrimethoxysilane, hexadecyltrimethoxysilane and polydimethylsiloxane are available from Nanjing Chemicals, Inc.;

alkylphenol ethoxylates, fatty alcohol-polyoxyethylene ethers, fatty acid-polyoxyethylene esters and polyoxyethylene amides were purchased from Haian petrochemical plants of Jiangsu province;

the nano zinc oxide and the nano silver are purchased from Nanjing Baokte New materials Co., Ltd;

polyacrylamide was purchased from chemical technology, inc, joking of shanghai;

the fatty acid polyglycol ester was purchased from Jiangsu Dena chemical corporation;

vinyltriethoxysilane and methacryloxypropyltrimethoxysilane were purchased from Nanjing silicon Innovative materials, Inc.;

calcium stearate and zinc stearate were purchased from Nanjing Yangzi Fine chemical, LLC;

chitosan was purchased from Nanjing Songguan Biotech limited;

the textile finishing liquor was purchased from Nanjing national rise textile science and technology Co.

In the following examples, the antibacterial master batch in the antibacterial wear-resistant paint and the antibacterial waterproof paint can be prepared in the following ways: mixing the polymer resin, the photocatalyst, the surfactant and the dispersing agent according to a ratio, extruding into strips by using a double-screw extruder, cutting into granules, and drying at 90 ℃ to obtain the antibacterial master batch.

Example 1

The embodiment provides an antibacterial fabric, antibacterial fabric is including the antibiotic wearing layer, antibiotic base cloth and the antibiotic waterproof layer that stack gradually.

In this embodiment, the components and parts by weight of the antibacterial cellosilk, the antibacterial wear-resistant coating, the antibacterial waterproof coating and the antibacterial finishing liquid are shown in table 1.

TABLE 1

The preparation method of the antibacterial fabric comprises the following steps:

(1) mixing a high polymer, a plasticizer and a photocatalytic antibacterial material, melting at 250 ℃, spinning to prepare antibacterial fiber yarns, and spinning the antibacterial fiber yarns into base cloth;

(2) mixing nano silver, nano zinc oxide, erbium-doped nano titanium dioxide, a silane coupling agent, a dispersing agent and deionized water, heating to 80 ℃, performing ultrasonic emulsification for 40min under the condition of constant temperature, adding chitosan, dispersing to obtain an antibacterial finishing liquid, and mixing the antibacterial finishing liquid and a fabric finishing liquid according to the mass ratio of 1:3 to obtain an antibacterial mixed solution;

(3) then, the base cloth is placed in the antibacterial mixed solution for padding until the padding residual rate of the base cloth is 65%, and the base cloth is dried for 30min at 80 ℃ to obtain the antibacterial base cloth;

(4) mixing TPU resin, antibacterial master batch, a dispersing agent and an antioxidant, and melting at 180 ℃ to obtain the antibacterial wear-resistant coating;

mixing PVC resin, antibacterial master batch, a dispersing agent and an antioxidant, and heating and melting at 170 ℃ to obtain the antibacterial waterproof coating;

(5) and respectively spraying the antibacterial wear-resistant coating and the antibacterial waterproof coating on two sides of the antibacterial base fabric through an automatic plastic spraying machine to form an antibacterial wear-resistant layer and an antibacterial waterproof layer, so as to obtain the antibacterial fabric.

Example 2

The embodiment provides an antibacterial fabric, antibacterial fabric is including the antibiotic wearing layer, antibiotic base cloth and the antibiotic waterproof layer that stack gradually.

In this embodiment, the components and parts by weight of the antibacterial cellosilk, the antibacterial wear-resistant coating, the antibacterial waterproof coating and the antibacterial finishing liquid are shown in table 2.

TABLE 2

The preparation method of the antibacterial fabric comprises the following steps:

(1) mixing a high polymer, a plasticizer and a photocatalytic antibacterial material, melting at 270 ℃, spinning to prepare antibacterial fiber yarns, and spinning the antibacterial fiber yarns into base cloth;

(2) mixing nano silver, nano zinc oxide, erbium-doped nano titanium dioxide, a silane coupling agent, a dispersing agent and deionized water, heating to 100 ℃, performing ultrasonic emulsification for 20min under the condition of constant temperature, adding chitosan, dispersing to obtain an antibacterial finishing liquid, and mixing the antibacterial finishing liquid and a fabric finishing liquid according to the mass ratio of 1:9 to obtain an antibacterial mixed solution;

(3) then, the base cloth is placed in the antibacterial mixed solution for padding until the padding residual rate of the base cloth is 75%, and the base cloth is dried for 5min at the temperature of 100 ℃ to obtain the antibacterial base cloth;

(4) mixing TPU resin, antibacterial master batch, a dispersing agent and an antioxidant, and melting at 205 ℃ to obtain the antibacterial wear-resistant coating;

mixing PVC resin, antibacterial master batch, a dispersing agent and an antioxidant, and heating and melting at 200 ℃ to obtain the antibacterial waterproof coating;

(5) and respectively spraying the antibacterial wear-resistant coating and the antibacterial waterproof coating on two sides of the antibacterial base fabric through an automatic plastic spraying machine to form an antibacterial wear-resistant layer and an antibacterial waterproof layer, so as to obtain the antibacterial fabric.

Example 3

The embodiment provides an antibacterial fabric, antibacterial fabric is including the antibiotic wearing layer, antibiotic base cloth and the antibiotic waterproof layer that stack gradually.

In this embodiment, the components and parts by weight of the antibacterial cellosilk, the antibacterial wear-resistant coating, the antibacterial waterproof coating and the antibacterial finishing liquid are shown in table 3.

TABLE 3

The preparation method of the antibacterial fabric comprises the following steps:

(1) mixing a high polymer, a plasticizer and a photocatalytic antibacterial material, melting at 260 ℃, spinning to prepare antibacterial fiber yarns, and spinning the antibacterial fiber yarns into base cloth;

(2) mixing nano silver, nano zinc oxide, erbium-doped nano titanium dioxide, a silane coupling agent, a dispersing agent and deionized water, heating to 90 ℃, performing ultrasonic emulsification for 30min under the condition of constant temperature, adding chitosan, dispersing to obtain an antibacterial finishing liquid, and mixing the antibacterial finishing liquid and a fabric finishing liquid according to the mass ratio of 2:9 to obtain an antibacterial mixed solution;

(3) then, the base cloth is placed in the antibacterial mixed solution for padding until the padding residual rate of the base cloth is 70%, and the base cloth is dried for 20min at the temperature of 90 ℃ to obtain the antibacterial base cloth;

(4) mixing TPU resin, antibacterial master batch, a dispersing agent and an antioxidant, and melting at 190 ℃ to obtain the antibacterial wear-resistant coating;

mixing PVC resin, antibacterial master batch, a dispersing agent and an antioxidant, and heating and melting at 180 ℃ to obtain the antibacterial waterproof coating;

(5) and respectively spraying the antibacterial wear-resistant coating and the antibacterial waterproof coating on two sides of the antibacterial base fabric through an automatic plastic spraying machine to form an antibacterial wear-resistant layer and an antibacterial waterproof layer, so as to obtain the antibacterial fabric.

Example 4

Compared with the example 3, the raw materials for preparing the antibacterial fiber filaments in the example comprise 1 part of cerium-doped nano titanium dioxide and 1 part of silver-doped nano bismuth tungstate, 0.83 part of polyethylene terephthalate, 0.92 part of polybutylene terephthalate, 0.08 part of glycerol and 0.17 part of propylene glycol, and the rest raw materials and the preparation method are the same as the example 3.

Example 5

Compared with the example 3, the raw materials for preparing the antibacterial cellosilk in the example have the addition amount of 4 parts of cerium-doped nano titanium dioxide, silver-doped nano bismuth tungstate is not added, and the rest raw materials and the preparation method are the same as those in the example 3.

Example 6

Compared with the example 3, the addition amount of the antibacterial master batch in the raw materials for preparing the antibacterial wear-resistant coating in the example is 2 parts, namely the addition amount of the TPU resin is 1.82 parts, the addition amount of the silver-doped nano titanium dioxide is 0.096 part, the addition amount of the alkylphenol polyoxyethylene ether is 0.08 part, the addition amount of the methacryloxypropyl trimethoxy silane is 0.004 part, the lacking parts by weight are supplemented with 1.98 parts of the TPU resin, 0.005 part of the vinyltriethoxysilane, 0.005 part of the methacryloxypropyl trimethoxy silane and 0.01 part of dilauryl thiodipropionate, and the rest of the raw materials and the preparation method are the same as those in the example 3.

Example 7

Compared with the example 3, the addition amount of the antibacterial master batch in the raw materials for preparing the antibacterial waterproof coating in the example is 2.5 parts, namely 2.275 parts of PVC resin, 0.125 part of silver-doped nano bismuth tungstate, 0.095 part of polyoxyethylene amide and 0.005 part of vinyl triethoxysilane are added, 2.47 parts of PVC resin, 0.02 part of methacryloxypropyl trimethoxysilane and 0.01 part of beta- (4' -hydroxy-3 ' -5' -di-tert-butylphenyl) octadecyl propionate are added in the lacking parts by weight, and the rest raw materials and the preparation method are the same as the example 3.

Example 8

Compared with the example 3, the raw materials for preparing the antibacterial finishing liquid in the example comprise 1 part of nano silver, 0.5 part of nano zinc oxide and 0.5 part of erbium-doped nano titanium dioxide, the missing parts by weight are supplemented by deionized water, and the rest raw materials and the preparation method are the same as those in the example 3.

Example 9

Compared with the example 3, the raw materials for preparing the antibacterial finishing liquid in the example are not added with the nano silver, the nano zinc oxide and the erbium-doped nano titanium dioxide, the missing parts by weight are complemented by the deionized water, and the rest raw materials and the preparation method are the same as the example 3.

Comparative example 1

Compared with the example 3, the antibacterial fabric in the comparative example does not need the steps of preparing the antibacterial wear-resistant coating and spraying the antibacterial wear-resistant coating on the antibacterial base cloth in the preparation process, namely the prepared antibacterial fabric only comprises two-layer structures of the antibacterial base cloth and the antibacterial waterproof layer, and the rest raw materials and the preparation method are the same as those in the example 3.

Comparative example 2

Compared with the example 3, the antibacterial fabric in the comparative example does not need the steps of preparing the antibacterial waterproof coating and spraying the antibacterial waterproof coating on the antibacterial base cloth in the preparation process, namely the prepared antibacterial fabric only comprises a two-layer structure of the antibacterial base cloth and the antibacterial wear-resistant layer, and the rest raw materials and the preparation method are the same as those in the example 3.

Comparative example 3

Compared with the example 3, the antibacterial fabric in the comparative example does not undergo the steps of preparation of antibacterial finishing liquid, padding of base cloth and drying in the preparation process, and the rest of raw materials and the preparation method are the same as those in the example 3.

Comparative example 4

Compared with the embodiment 3, in the comparative example, the raw materials for preparing the cellosilk are not added with cerium-doped nano titanium dioxide and silver-doped nano bismuth tungstate, and the missing parts by weight are 1.66 parts of polyethylene terephthalate, 1.84 parts of polybutylene terephthalate, 0.16 part of glycerol and 0.34 part of propylene glycol, so that the obtained base cloth has no antibacterial effect;

in addition, the amount of the silver-doped nano titanium dioxide in the antibacterial master batch in the antibacterial wear-resistant paint is increased to 4.192 parts, and the rest of raw materials and the preparation method are the same as those in the example 3.

Comparative example 5

Compared with the embodiment 3, the raw materials for preparing the antibacterial master batch in the wear-resistant coating in the comparative example are not added with the silver-doped nano titanium dioxide, and the lacking parts by weight are complemented by TPU resin; the obtained wear-resistant coating has no antibacterial effect;

in addition, the amount of silver-doped nano bismuth tungstate in the antibacterial master batch in the antibacterial waterproof coating is increased to 0.442 part, and the rest raw materials and the preparation method are the same as those in the example 3.

Comparative example 6

Compared with the example 3, the raw materials for preparing the antibacterial master batch in the waterproof coating in the comparative example are not added with the silver-doped nano bismuth tungstate, and the lacking parts by weight are complemented by PVC resin; the obtained waterproof coating has no antibacterial effect;

in addition, the amount of the silver-doped nano titanium dioxide in the antibacterial master batch in the antibacterial wear-resistant paint is increased to 0.442 part, and the rest of the raw materials and the preparation method are the same as those in the example 3.

Comparative example 7

Compared with the example 3, in the preparation process of the antibacterial fabric in the comparative example, the antibacterial wear-resistant coating and the antibacterial waterproof coating are sprayed to one side of the antibacterial base fabric through an automatic spraying machine, the antibacterial waterproof coating is arranged on the outermost layer, the antibacterial base fabric is arranged on the innermost layer, the wear-resistant waterproof coating is arranged in the middle, and the rest raw materials and the preparation method are the same as those in the example 3.

Detection of antibacterial Properties

The antibacterial rate of the antibacterial fabric prepared in the embodiment and the comparative example is calculated according to the detection standard in the national standard GBT 20944.3-2008, evaluation of antibacterial performance of textiles, part 3 of oscillation method.

Detection of mildew resistance

The mildew-proof grade of the antibacterial fabric prepared in the embodiment and the comparative example is detected according to the detection standard in the national standard GB/T24346-2009 evaluation of mildew-proof performance of textiles.

Antiviral Performance test

The antiviral activity rate of the antibacterial fabric prepared in the examples and the comparative examples is tested according to the test standard in ISO18184:2014(E) textile antiviral property test method.

Detection of waterproof capability

The waterproof grade of the antibacterial fabric prepared in the embodiment and the comparative example is detected according to the detection standard in GB/T4745 plus 2012 'textile waterproof performance detection and evaluation water dipping method'.

The detection results of the antibacterial, mildew-proof, antiviral and waterproof performances of the antibacterial fabrics prepared in the embodiments 1 to 9 and the comparative examples 1 to 7 of the invention are shown in table 4.

TABLE 4

From table 4, the following can be seen:

(1) comparing the antibacterial fabrics prepared in examples 1 to 9 and comparative examples 1 to 7, it can be seen that the antibacterial, mildew-proof, antiviral and waterproof effects of the antibacterial fabrics prepared in examples 1 to 9 are good, wherein the antibacterial rate to staphylococcus aureus is not lower than 99.19%, the antibacterial rate to escherichia coli is not lower than 99.26%, the antibacterial rate to candida albicans is not lower than 99.16%, the antiviral activity to H1N1 is not lower than 99.14%, the antiviral activity to H3N2 is not lower than 99.09%, the mildew-proof grade is 0, the waterproof grade is 5, the antibacterial and waterproof effects of the antibacterial fabrics prepared in comparative examples 1 to 7 are poor, wherein the antibacterial rate to staphylococcus aureus is not higher than 97.68%, the antibacterial rate to escherichia coli is not higher than 97.59%, the antibacterial rate to candida albicans is not higher than 97.81%, and the antiviral activity to H1N1 is not higher than 96.54%, the antiviral activity rate of H3N2 is not higher than 96.39%, and the mildew-proof grade and the waterproof grade cannot reach the highest standard;

the antibacterial wear-resistant layer is absent in the comparative example 1, the antibacterial waterproof layer is absent in the comparative example 2, the antibacterial wear-resistant layer and the antibacterial waterproof layer in the comparative example 7 are arranged on the same side of the antibacterial base fabric, and the antibacterial, antiviral, mildewproof and waterproof effects are slightly poor, so that the antibacterial base fabric can achieve a good antibacterial effect only by simultaneously having three-layer structures of the antibacterial wear-resistant layer, the antibacterial base fabric and the antibacterial waterproof layer, and the antibacterial wear-resistant layer and the antibacterial waterproof layer are respectively arranged on two sides of the antibacterial base fabric; in the comparative example 3, padding is not carried out, the antibacterial effect is slightly poor, and the fact that the padding can improve the antibacterial capability of the antibacterial fabric is shown; the antibacterial fabric in the comparative example 4 does not have an antibacterial function, the antibacterial wear-resistant layer in the comparative example 5 does not have an antibacterial function, the antibacterial waterproof layer in the comparative example 6 does not have an antibacterial function, and the comprehensive performance of the fabric is also influenced to a certain extent, so that the optimal antibacterial and antiviral effects can be achieved only if the three-layer structures of the antibacterial wear-resistant layer, the antibacterial base cloth and the antibacterial waterproof layer have the antibacterial function;

(2) comparing examples 1-3 with examples 4-9, it can be seen that examples 1-3 have better antibacterial and antiviral effects, the antibacterial rate to staphylococcus aureus is not less than 99.67%, the antibacterial rate to escherichia coli is not less than 99.69%, the antibacterial inhibition rate to candida albicans is not less than 99.60%, the antiviral activity rate to H1N1 is not less than 99.53%, and the antiviral activity rate to H3N2 is not less than 99.54%;

in example 4, the addition amount of the photocatalytic antibacterial material is small in the preparation process of the antibacterial fiber yarn, the addition amount of the antibacterial masterbatch in the antibacterial wear-resistant layer in example 6 is small, and the addition amount of the antibacterial masterbatch in the antibacterial waterproof layer in example 7 is small, which indicates that a good antibacterial effect can be generated only when the addition amounts of the raw materials of the antibacterial fiber yarn, the antibacterial wear-resistant coating and the antibacterial waterproof coating are within a proper range; the addition amount of the nano silver, the nano zinc oxide and the erbium-doped nano titanium dioxide in the antibacterial finishing liquid in the embodiment 8 is small, and the antibacterial finishing liquid in the embodiment 9 does not contain the nano silver, the nano zinc oxide and the erbium-doped nano titanium dioxide, which indicates that the effect is good when the antibacterial finishing liquid with a specific proportion is added in the textile finishing liquid, and the antibacterial and antiviral effects are slightly poor when the textile finishing liquid is only used for padding or the addition amount of substances with antibacterial effects in the antibacterial finishing liquid is small; in example 5, only cerium-doped nano titanium dioxide is added and silver-doped nano bismuth tungstate is not added, so that the antibacterial and antiviral abilities are slightly poor, which indicates that the silver-doped nano bismuth tungstate and the silver-doped nano titanium dioxide have a synergistic interaction effect, and when only one photocatalytic antibacterial material is used, the optimal antibacterial and antiviral effects cannot be achieved.

In conclusion, the invention provides the antibacterial fabric and the preparation method and application thereof, the antibacterial fabric prepared by the invention comprises the antibacterial wear-resistant layer, the antibacterial base cloth and the antibacterial waterproof layer which are sequentially laminated, the three-layer structure has antibacterial, mildew-proof and antiviral capabilities, and the effect of resisting pathogenic microorganisms is very obvious; the antibacterial fabric also has waterproof and self-cleaning capabilities, so that the cleanness and sanitation of the fabric are ensured while the antibacterial function of the fabric is further improved; the fabric has high strength and is suitable for preparing the case fabric; the preparation method is scientific and reasonable, energy-saving and efficient, has the value of practical production and application, and has very wide application prospect.

The applicant states that the present invention is illustrated in detail by the above examples, but the present invention is not limited to the above detailed methods, i.e. it is not meant that the present invention must rely on the above detailed methods for its implementation. It should be understood by those skilled in the art that any modification of the present invention, equivalent substitutions of the raw materials of the product of the present invention, addition of auxiliary components, selection of specific modes, etc., are within the scope and disclosure of the present invention.