Plasma-treated chitosan antibacterial fiber and preparation method thereof

Abstract

The invention provides a method for preparing chitosan antibacterial fibers through plasma treatment. Compared with the prior art, the method has the advantages that the natural material chitosan is used as the antibacterial agent, so that the biocompatibility is better, active groups can be generated on the surface of the fiber subjected to plasma treatment, and the active groups can be subjected to grafting reaction with the chitosan so that the active groups can be uniformly attached to the outer surface layer of the fiber to form a whole, and the obtained antibacterial fiber has a stronger antibacterial effect; compared with the prior art, the chitosan antibacterial fiber has the advantages that the chitosan antibacterial fiber can inhibit growth of bacteria and has better washability, plasma treatment is adopted, the production process is high in efficiency, energy-saving, environment-friendly and low in cost, and the mechanical property of the fiber is not affected, so that the obtained chitosan antibacterial fiber treated by the plasma has the advantages of high strength, high washability, strong antibacterial property and low cost.

Description

technical field [0001] The invention belongs to the technical field of textile fabrics, in particular to a plasma-treated chitosan antibacterial fiber and a preparation method thereof. Background technique [0002] Antibacterial fibers can be used to fight against aureus bacteria, Escherichia coli, Candida albicans, etc., so they are widely used in sports T-shirts, underwear, and socks. [0003] At present, the production processes of antibacterial fibers on the market mainly include the following types: the first is to add antibacterial finishing agents (mainly chemical finishing agents containing silver, etc.) : Simple, relatively low cost, and the disadvantage is that it is not washable; the second is to implant antibacterial materials into the fiber through the method of masterbatch blending, but most of the antibacterial materials added by blending are irregular and random. The fiber neutralizes the surface, and the antibacterial agent must be on the surface of the fib...

AI Technical Summary

Problems solved by technology

[0003] At present, the production processes of antibacterial fibers on the market mainly include the following types: the first is to add antibacterial finishing agents (mainly chemical finishing agents containing silver, etc.) : Simple, relatively low cost, and the disadvantage is that it is not washable; the second is to implant antibacterial materials into the fiber through the method of masterbatch blending, but most of the antibacterial materials added by blending are irregular and random. The fiber neutralizes the surface, and the antibacterial agent must be on the surface of the fiber to exert the antibacterial effect. In order to improve the antibacterial performance, the addition of the antibacterial agent can only be increased. Compared with the fiber, it increases impurities and damages the evenness and mechanics of the fiber. performance, which has a great impact on the subsequent weaving; the third is to plate a layer of silver on the surface of the fiber by electroplating an antibacterial agent, such as the silver fiber launched by the American Noble Company, X-Static silver fiber is widely used in Lululemon's yoga pants have the advantages of better antibacterial effect, but the disadvantage is that the cost is relatively expensive, and the price of the yarn is more than 500 yuan / kg. In addition, elemental silver is easily oxidized and blackened in the air for a long time; The fourth type is natural antibacterial materials. Because the above three antibacterial technologies mostly use chemical antibacterial materials such as silver, copper and other metal materials, when they come into contact with human skin, they will have a certain impact on human health. Natural antibacterial materials have been introduced, such as tea, chitosan and other natural materials to achieve antibacterial, examples include the chitosan viscose fiber launched by Shandong Haismore, but these materials will fall off due to friction, washing, etc. during use , leading to a decrease in antibacterial performance

Images