Antibacterial textiles can prevent germs from multiplying on textiles and produce peculiar smells due to bacteria decomposing fabrics or dirt on them, thereby preventing the spread of diseases and harming humans to a certain extent. At present, antibacterial textiles have been widely used in people's underwear, pajamas, sportswear, socks, insoles, sheets, duvet covers, blankets, sofa covers in public places, work clothes in the medicine, food, and service industries, and military clothing.
The development of antibacterial textiles can be made directly with fiber design with antibacterial function. Antibacterial fibers generally include natural fibers and chemical fibers. The former refers to natural fibers that have an inhibitory effect on bacteria due to their own special structure or the substances contained therein. The latter refers to essential antibacterial chemical fibers such as chitosan fibers and chitin fibers or antibacterial modifications developed through physical and chemical modifications. Chemical Fiber. The following mainly takes modified chemical fiber as an example to explain.
Antibacterial natural fiber
Antibacterial natural fiber has a good inhibitory or killing effect on bacteria due to its special structure or contains natural antibacterial substances, so that textiles have antibacterial properties. Natural antibacterial fibers mainly include hemp fibers, bamboo fibers, and kapok fibers.
Hemp fiber is widely used in the textile field, and it is also the most widely used natural antibacterial fiber. Its porous structure makes the fiber rich in oxygen, which can inhibit the growth of anaerobic bacteria. The antibacterial substances contained in the fiber include sesame sterol, flavonoids, and phenols. Substances have a good inhibitory effect on bacteria.
Antibacterial chemical fiber
The preparation of antibacterial chemical fibers is mainly achieved through physical or chemical modification methods. The processing methods of antibacterial modified fibers mainly include blending spinning method, chemical grafting modification method, composite spinning method and finishing method. Among them, the blending spinning method has always been an important means to develop antibacterial functional fibers.
Effective antibacterial ingredients are extracted from natural herbs (such as mint, grass coral, wormwood, etc.), and then added to the chemical fiber spinning solution to prepare antibacterial fibers, which have a certain antibacterial effect. As people pursue a more green and healthy lifestyle, this type of antibacterial fiber and its products will be more popular.
In addition, through the continuous innovation and exploration of related researchers and manufacturers, more new antibacterial fibers continue to appear. For example, the cellulose fiber developed by Tianan Group, the Institute of Microbiology of the Chinese Academy of Sciences, the Ningbo Institute of Materials Technology and Engineering of the Chinese Academy of Sciences, and the Hong Kong Polytechnic University are based on polylactic acid (PLA) and polyhydroxybutyrate valeric acid copolyester (PHBV). ) Two kinds of bio-based biodegradable polymer resins are prepared by rheological modification, reactive blending and melt spinning, which can realize natural, non-additive, environmentally friendly, and antibacterial, overturning the traditional dependence on adding antibacterial agents to achieve Processing method with antibacterial effect.
Japan's Teijin and Murata Manufacturing Co., Ltd. developed the piezoelectric fiber "PIECLEX" that can generate electricity and exert antibacterial properties after applying force. The fiber uses PLA as a raw material, which can convert the force generated by human activities into electrical energy, thereby exerting antibacterial properties. On the basis of using biomass raw materials, without adding any chemical antibacterial agents, it is green and environmentally friendly, safe and healthy, which is another subversion of traditional antibacterial fiber preparation methods.
