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Antibacterial finishing method of cotton fabrics

An antibacterial finishing and cotton fabric technology, applied in fiber treatment, plant fiber, biochemical fiber treatment, etc., can solve problems such as weak binding force, not washable, affecting human health, etc., and achieve the effect of uniform dispersion and good antibacterial performance

Active Publication Date: 2017-10-24
科凯精细化工(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Cotton fabric is the most common textile fabric in our daily life, but cotton fabric easily absorbs sweat and metabolic products secreted by human sweat glands and sebaceous glands, thus forming a source of nutrition for microorganisms, which can easily lead to the growth and reproduction of microorganisms, resulting in the deterioration of yarn-dyed fabrics. Bacterial plaques are formed on shirts, causing mildew in textiles and affecting human health. Therefore, it is necessary to carry out antibacterial finishing on cotton fabrics. Therefore, people have been researching and developing textile antibacterial agents with excellent performance.
[0003] Generally speaking, textile antibacterial agents are divided into inorganic antibacterial agents, organic antibacterial agents and natural antibacterial agents according to the source of materials. Among them, quaternary ammonium salt-type polymer antibacterial agents and nano-zinc oxide are two commonly used antibacterial agents. Molecular antibacterial agents have the disadvantages of being not washable, easy to wash off, not long-lasting antibacterial, and poisonous to the human body after elution; while nano-zinc oxide has excellent properties such as non-toxicity, large specific surface area, anti-ultraviolet radiation and antibacterial, etc. Someone tried to combine the two to prepare a composite antibacterial agent of quaternary ammonium salt copolymer and nano-zinc oxide, which was applied in fabric finishing
However, existing quaternary ammonium salt type polymer antibacterial agents and nano-zinc oxide composite antibacterial agents all have some inherent deficiencies. The rapid loss of nano-zinc oxide during the use of textiles cannot exert the antibacterial effect of nano-zinc oxide for a long time; for another example, nano-zinc oxide is very easy to agglomerate, and the problem of agglomeration of nanomaterials has not been solved well, thus greatly reducing the antibacterial effect of nano-zinc oxide. The antibacterial effect of zinc oxide; as another example, the composite antibacterial agent of nano-zinc oxide and quaternary ammonium salt copolymer is easy to fall off from the textile, especially after repeated washing, thus losing the original antibacterial performance, etc.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Antibacterial finishing method of cotton fabrics
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  • Antibacterial finishing method of cotton fabrics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0107] (1) Preparation of nano-zinc oxide composite solution: Mix 1.0g nano-zinc oxide, 40g ethanol, 18g water and 4g γ-methacryloxypropyltrimethoxysilane evenly, ultrasonically disperse for 1h, and heat at 60°C The water bath was refluxed for 12 hours, then cooled to room temperature, and the product was centrifuged and washed to obtain active nanometer zinc oxide. Dissolve 4g of ammonium persulfate in 10g of deionized water, and divide it into two equal parts, then add 4.0g of active nano-zinc oxide, 50g of deionized water, 12g of acrylic acid, 4.0g of allyl glycidyl ether and 7g of potassium persulfate solution to the In a three-neck flask, stir evenly, then heat in a water bath to 80°C, and react for 20 minutes; then add dropwise 12g of acrylic acid, 4.0g of allyl glycidyl ether, and 7g of potassium persulfate solution, keep stirring for 4.0h, then cool down to room temperature, that is Obtain nano-zinc oxide complex solution.

[0108] (2) Synthesis of quaternary ammonium...

Embodiment 2

[0110] (1) Preparation of nano-zinc oxide composite solution: Mix 1.0g nano-zinc oxide, 40g ethanol, 18g water and 4g γ-methacryloxypropyltrimethoxysilane evenly, ultrasonically disperse for 1h, and heat at 60°C The water bath was refluxed for 12 hours, then cooled to room temperature, and the product was centrifuged and washed to obtain active nanometer zinc oxide. Dissolve 4g of ammonium persulfate in 10g of deionized water, and divide it into two equal parts, then add 4.0g of active nano-zinc oxide, 50g of deionized water, 12g of acrylic acid, 4.0g of allyl glycidyl ether and 7g of potassium persulfate solution to the In a three-neck flask, stir evenly, then heat in a water bath to 80°C, and react for 20 minutes; then add dropwise 12g of acrylic acid, 4.0g of allyl glycidyl ether, and 7g of potassium persulfate solution, keep stirring for 4.0h, then cool down to room temperature, that is Obtain nano-zinc oxide complex solution.

[0111] (2) Synthesis of quaternary ammonium...

Embodiment 3

[0113] (1) Preparation of nano-zinc oxide composite solution: Mix 1.0g nano-zinc oxide, 40g ethanol, 18g water and 4g γ-methacryloxypropyltrimethoxysilane evenly, ultrasonically disperse for 1h, and heat at 60°C The water bath was refluxed for 12 hours, then cooled to room temperature, and the product was centrifuged and washed to obtain active nanometer zinc oxide. Dissolve 4g of ammonium persulfate in 10g of deionized water, and divide it into two equal parts, then add 4.0g of active nano-zinc oxide, 50g of deionized water, 12g of acrylic acid, 4.0g of allyl glycidyl ether and 7g of potassium persulfate solution to the In a three-neck flask, stir evenly, then heat in a water bath to 80°C, and react for 20 minutes; then add dropwise 12g of acrylic acid, 4.0g of allyl glycidyl ether, and 7g of potassium persulfate solution, keep stirring for 4.0h, then cool down to room temperature, that is Obtain nano-zinc oxide complex solution.

[0114] (2) Synthesis of quaternary ammonium...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to an antibacterial finishing method of cotton fabrics. The finishing method comprises the following steps: preparing a nano zinc oxide complex solution, preparing a quaternary ammonium salt polymer solution; mixing the nano zinc oxide complex solution and the quaternary ammonium salt polymer solution to obtain a zinc oxide-quaternary ammonium salt polymer composite antibacterial agent; mixing the zinc oxide-quaternary ammonium salt polymer composite antibacterial agent with water to obtain an antibacterial finishing solution with a concentration of 50 to 500 g / L; using the antibacterial finishing solution to carry out a dip padding treatment on cotton fabrics, and finally drying the cotton fabrics after the dip padding treatment. The adopted antibacterial finishing agent is a complex of quaternary ammonium salt polymer and nano zinc oxide. The cotton fabrics processed by the provided antibacterial finishing method have a good antibacterial performance. The using amounts of two antibacterial agents can be flexibly adjusted according to the actual needs; the local antibacterial effect is enhanced, at the same time, the binding strength between the antibacterial finishing agent and cotton fabrics is strong, the cotton fabrics are resistant to washing, and the antibacterial effect is long-lasting.

Description

technical field [0001] The invention relates to an antibacterial finishing method for cotton fabrics. Background technique [0002] Cotton fabric is the most common textile fabric in our daily life, but cotton fabric easily absorbs sweat and metabolic products secreted by human sweat glands and sebaceous glands, thus forming a source of nutrition for microorganisms, which can easily lead to the growth and reproduction of microorganisms, resulting in the deterioration of yarn-dyed fabrics. Bacterial plaques are formed on shirts, causing mildew in textiles and affecting human health. Therefore, it is necessary to carry out antibacterial finishing on cotton fabrics. Therefore, people have been researching and developing textile antibacterial agents with excellent performance. [0003] Generally speaking, textile antibacterial agents are divided into inorganic antibacterial agents, organic antibacterial agents and natural antibacterial agents according to the source of materials...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/356D06M15/347C08F292/00C08F220/06C08F216/14C08F226/02D06M101/06
CPCC08F226/02C08F292/00D06M15/347D06M15/3562D06M16/00D06M2101/06D06M2400/01C08F220/06C08F216/1416
Inventor 任一波俞成丙
Owner 科凯精细化工(上海)有限公司
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