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Method for preparation of inorganic nano copper antibacterial agent and dipping treatment of cotton chitosan blended antibacterial fabric

An antibacterial agent and fabric technology, applied in the field of textile functional finishing, can solve the problems of high price and low reaction rate, and achieve the effects of low product cost, simple process, efficient and durable anti-ultraviolet performance

Inactive Publication Date: 2015-07-08
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among many inorganic antibacterial agents, although silver ion antibacterial fiber has been widely used, it is expensive and has a low reaction rate.

Method used

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  • Method for preparation of inorganic nano copper antibacterial agent and dipping treatment of cotton chitosan blended antibacterial fabric
  • Method for preparation of inorganic nano copper antibacterial agent and dipping treatment of cotton chitosan blended antibacterial fabric
  • Method for preparation of inorganic nano copper antibacterial agent and dipping treatment of cotton chitosan blended antibacterial fabric

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Experimental program
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Effect test

Embodiment 1

[0016] Prepare NaOH and CuSO4 solutions of equal volume and concentration, and slowly add NaOH to the CuSO4 solution to seal and let it stand for 5 minutes. Then the blue precipitate obtained by the reaction is suction filtered, rinsed with absolute ethanol several times during the suction filtration process, and finally the amount of the substance is 1 / 2 of Cu and the volume ratio is 1:3 ammonia water to dissolve the suction filtration solid PH≈12 , that is, A([Cu(NH 3 ) 4 ](OH) 2 ) and B([Cu(NH 3 ) 4 ] SO 4 ) is a copper-carrying ligand finishing agent with a similar proportion as the main component.

[0017] The copper-loaded ligand finishing agent prepared above was used to impregnate and complex the semi-bleached pure cotton fabric with a bath ratio of 1:30, a time of 20 minutes, and a copper concentration of 0.025M / L. Then wash with warm water and cold water several times until the washing water becomes neutral, then dry it naturally and then soap it (soap flakes 2...

Embodiment 2

[0019] The pretreated 10 / 90 chitosan / cotton blended fabric was impregnated and complexed with the copper-loaded ligand finishing agent prepared above at a bath ratio of 1:30, for 20 minutes, and with a copper concentration of 0.025 M / L. Then wash with warm water and cold water several times until the washing water becomes neutral. After natural drying, use soap flakes 2g / L, 95°C, 10min, bath ratio 1:30 process parameters to soap the complex blended fabric, and use the same washing method to wash the fabric. The antibacterial rate of the fabric against Escherichia coli and Staphylococcus aureus is close to 100% when tested by shaking method, and the bactericidal rate is only reduced by 1% after 50 times of simulated washing. In addition, after the UV protection performance test, its UDF value can reach 100.

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Abstract

The invention discloses a preparation method of copper-ion antibacterial and anti-ultraviolet finishing agent. The method is characterized in that the reagent dosage, namely the adding ratios of copper sulfate and sodium hydroxide reacting in preparation can be determined according to the ratios of alkaline copper ammonia and salt copper ammonia in an antibacterial agent. A fiber reaction interval is easy to operate by the alkaline copper ammonia, so that copper ammonia chelate ions are easily provided for complex reaction by the salt copper ammonia; and due to the introduction of the copper ammonia ions, the fabric easily develops the antibacterial property. The chitosan and cotton blended fabric are complexly finished by employing the obtained copper ion finishing agent with the optimal ratio; and the parameter conditions of a complexing process are explored to control the complex condition of the copper ions, so that the current situations that the spinnability of a chitosan fiber is poor and the antibacterial property is easily interfered are solved.

Description

technical field [0001] The field that the invention relates to is textile functional finishing technology, specifically the preparation of copper-carrying ligand finishing agent and the finishing of chitosan or cotton fiber fabrics. Background technique [0002] At present, chitosan fiber in the market has high cost, poor spinnability, and many interfering factors such as pH, metal ions, degree of deacetylation, molecular weight and so on. In addition, affected by the complexity of bacterial metabolites and the variety of growth environments, chitosan fibers are mainly antibacterial, not bactericidal. Cotton fiber with good spinnability and excellent wearability is blended with chitosan fiber to increase the strength of the cotton web, and at the same time endow the blended yarn with certain antibacterial properties and reduce costs. However, raw cotton contains 4%-12% of accompanying organisms, and these substances just provide carbon sources, nitrogen sources, inorganic s...

Claims

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Application Information

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IPC IPC(8): D06M11/65D06M11/64D06M101/06
Inventor 王建坤田艳红王键李玲玲杨菊花陈永裕孙第黄铭铭
Owner TIANJIN POLYTECHNIC UNIV
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