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
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[0015] Example 1
[0016] Prepare NaOH and CuSO4 solutions of equal volume and equal concentration, and slowly add NaOH to CuSO4 solution and let it stand for 5 minutes. Then, the blue precipitate obtained from the reaction was suction filtered and rinsed with absolute ethanol several times during the suction filtration process, and finally, the amount of the substance was 1 / 2 of Cu and the volume ratio of the ammonia water was 1:3 to dissolve the filtered solid PH≈12 , That is, A([Cu(NH 3 ) 4 ](OH) 2 ) And B([Cu(NH 3 ) 4 ]SO 4 ) Is the main component and the copper-loaded ligand finishing agent with similar proportions.
[0017] The prepared copper-carrying ligand finishing agent is used to impregnate and complex the semi-bleached cotton fabric at a bath ratio of 1:30, a time of 20 minutes, and a copper concentration of 0.025M / L. Then wash several times with warm water and cold water until the washing water becomes neutral, dry naturally and then soap and cook (soap flakes 2g / L, ...
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[0018] Example 2
[0019] The pre-treated 10 / 90 chitosan / cotton blended fabric is impregnated and complexed with the prepared copper-loaded ligand finishing agent at 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. After natural drying, use soap flakes 2g / L, 95℃, 10min, bath ratio 1:30 to saponify 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 was tested by the shaking method, and the antibacterial rate was only reduced by 1% after 50 simulated washing. In addition, after anti-ultraviolet performance test, its UDF value can reach 100.
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