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Anti-bacterial finishing agent for textiles

An antibacterial finishing agent and antibacterial finishing technology, applied in textiles and papermaking, fiber treatment, organic chemistry, etc., can solve the problems of poor affinity of cellulose fibers, less application, and easy washing off.

Inactive Publication Date: 2013-09-11
浙江敬业染整股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Second, the finishing effect should be durable, resistant to machine washing, dry cleaning and hot pressing, which is the biggest challenge for antibacterial finishing
[0007] Isothiazolinone fungicides are organic small molecule antibacterial agents. Although they have excellent antibacterial properties, they have the disadvantage of being easily washed off when applied on fabrics, and the affinity of isothiazolone fungicides to cellulose fibers Poor, less used on textiles

Method used

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  • Anti-bacterial finishing agent for textiles
  • Anti-bacterial finishing agent for textiles
  • Anti-bacterial finishing agent for textiles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] In a 500mL four-neck flask equipped with an electric stirrer and a thermometer, add 7.5g of benzisothiazolinone and 150mL of chloroform, stir to dissolve, cool to 0-5°C, and dropwise add 100mL of cyanuric chloride in chloroform ( Which contains cyanuric chloride 11.5g), after the dropwise addition, react at room temperature for 1h, pour the reaction solution into a separatory funnel, wash 3 times with distilled water, add anhydrous sodium sulfate to dry overnight, filter to remove sodium sulfate , Distilled under reduced pressure to obtain a white solid, which is a reactive benzisothiazolinone fungicide, and the product yield is 94.6%.

[0023] Add an appropriate amount of the antibacterial agent obtained in the first step, 3 g of nonylphenol polyoxyethylene ether, and 2.5 g of polyoxyethylene ether sorbitan ester into 95 g of deionized water to prepare an emulsified working solution. According to the liquor ratio of 1:15, the pure cotton white knitted fabric was impreg...

Embodiment 2

[0033] In a 500mL four-neck flask equipped with an electric stirrer and a thermometer, add 7.5g of benzisothiazolinone and 150mL of chloroform, stir and heat to dissolve, raise the temperature to 40°C, and drop 55g / L of 1-amino 3 , 180mL of chloroform solution of 5 dichloro-s-triazine, after the dropwise addition, react at 40°C for 2h, pour the reaction solution into a separatory funnel, wash with distilled water 3 times, add anhydrous sodium sulfate to dry overnight, filter The sodium sulfate was removed, and a white solid was obtained by distillation under reduced pressure, which was a reactive benzisothiazolinone bactericide, and the product yield was 86.4%.

[0034] Add 12g of the antibacterial agent obtained in the first step, 3.5g of nonylphenol polyoxyethylene ether, and 3.5g of polyoxyethylene ether sorbitan ester into 90g of deionized water to prepare an emulsified working solution. According to the liquor ratio of 1:15, the pure cotton white knitted fabric was impreg...

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Abstract

The invention discloses a preparation method and application of an anti-bacterial finishing agent for textiles. A reaction type benzisothiazoline anti-bacterial finishing agent is prepared by taking benzisothiazoline derivatives as main anti-bacterial groups, tri-nitrogen benzene rings in triazole derivatives as auxiliary anti-bacterial groups and active substituent groups of the triazole derivatives as potential reactive groups to complete reaction by a one-step method at 0-40 DEG C in the presence of a catalyst. 8-20% of anti-bacterial agent emulsion prepared from the anti-bacterial agent is used for anti-bacterial finishing of cotton fabrics. The cotton fabrics carry out thermal reaction for 40 minutes at 40-80 DEG C, then sodium carbonate is added, reaction is continued for 40 minutes, and then the fabrics are taken out, washed with water and dried in the air, thus completing the finishing processes. The cotton fabrics after undergoing anti-bacterial finishing have a good anti-bacterial effect on escherichia coli and staphylococcus aureus and have higher washability. The preparation method of the anti-bacterial agent is simple, is sufficient in raw material source and is suitable for industrial popularization.

Description

technical field [0001] The invention belongs to the field of antibacterial finishing agents, in particular to a preparation and application method of a reactive benzisothiazolinone antibacterial finishing agent. Background technique [0002] Due to human sweating, sebum and surface debris, microorganisms (mostly bacteria, but also fungi such as mold and yeast) multiply rapidly, especially under humidity, nutrition and suitable temperature. The reproduction of microorganisms will generate plaque on the fabric, which will cause mildew, embrittlement and even deterioration of the textile, so that the human body will feel uncomfortable or have adverse effects on the human body during wearing or application. The purpose of antibacterial finishing of textiles is to endow textiles with good antibacterial function, protect textiles from being degraded by mold, prevent the spread of microorganisms, and reduce the cross-infection rate in public environments; at the same time, it can a...

Claims

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Application Information

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IPC IPC(8): D06M13/358C07D417/04C07D417/14D06M101/06
Inventor 李美凤
Owner 浙江敬业染整股份有限公司
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