Current Situation Of Nano Antibacterial Textiles And Antibacterial Technology

　　 1、 Present situation of nano antibacterial textiles

In the late 1980s, persistent antibacterial fibers were obtained by blending chemical fibers with antibacterial agents. These antibacterial agents are inorganic substances, including metal elements, oxides and various compounds. According to the different sterilization mechanisms, it can be divided into contact antibacterial agents and photocatalytic antibacterial agents. Due to the development of nanotechnology in recent years, submicron and nanometer inorganic antibacterial agents can be produced in batches, and can be blended into chemical fibers, ensuring the industrialization of antibacterial chemical fibers.

Recently, some fiber manufacturers in many countries in the world, especially Japan, the United States and the United Kingdom, have seen the importance of antibacterial fibers, and have developed and produced their own antibacterial fibers and textiles. Most of the fibers made by adding antibacterial agents to the spinning solution are polyester, acrylic, nylon, etc.

The ultra-fine nano antibacterial powder developed by the National Super Powder Engineering Center can endow the resin with antibacterial ability and inhibit various bacteria, fungi and molds. The "Nano Layered Silver Series Inorganic Antibacterial Fiber" jointly developed by China National Academy of Textile Sciences and Beijing Sateri uses ultra-fine silver ion phosphate crystal powder as inorganic filler, first mixed with polyester melt to make antibacterial master batch, and then added a certain proportion of antibacterial master batch during spinning to produce permanent antibacterial polyester fiber. The antibacterial polyester fiber has the characteristics of insoluble antibacterial agent, unchanged fiber color and good spinnability.

　　 2、 New achievements of nano antibacterial technology

　　 XTEP Nano resistance technology: Nano silver resistant and antibacterial sports shoes developed by the Institute of Physical and Chemical Science and Technology of the Chinese Academy of Sciences, making Tebu the first antibacterial sports shoe enterprise in China to reach the international level. At the same time, it is the first generation of nano silver antibacterial sports shoes in the world, marking China gym shoes We have stepped into the field of high-tech.

Nanoantibacterial biological protein fiber technology and achievements: The project of "Nanoantibacterial biological protein fiber" jointly developed by three companies, including the Institute of Process Engineering of the Chinese Academy of Sciences, uses the viscose spinning process to prepare antibacterial functional protein fiber, which is innovative in technology, fills the domestic gap, and occupies the international leading level. The invention of this technology marks the first successful connection between modern biotechnology and modern textile technology, and the beginning of a new generation of high-tech leading the world wool and fiber industry revolution.

　　 III Nano antibacterial materials Some Problems in Production

In recent years, the research and development of nano powder modified textile polymer materials and nano printing and dyeing technology based on nano materials and nanotechnology are very prosperous, and some achievements have been made in the high-performance and functional aspects of textile products, which have realized industrialization to varying degrees, and effectively promoted the development of high-tech in printing and dyeing industry, It improves the level of traditional printing and dyeing products.

It is an important direction for the upgrading of anti-bacterial textiles and domestic textiles. Antibacterial fiber and antibacterial fabric can effectively prevent the propagation and growth of microorganisms on the fiber fabric, which has the function of hygiene and self-cleaning, as well as odor prevention effect. Antibacterial fibers contain antibacterial agents. After washing, surface abrasion and other strong effects, the antibacterial effect of fibers almost does not decline.

The key to develop antibacterial fiber is to meet the requirements of antibacterial property, safety of products in fiber production and processability in spinning application. Inorganic antibacterial agent is a kind of long-acting, broad-spectrum, efficient and safe new antibacterial agent. In addition, the high temperature resistance of inorganic antibacterial agents is not achieved by other types of antibacterial agents.

Antibacterial fiber can be realized by antibacterial master batch technology. Antibacterial masterbatch is the form of high concentration of antibacterial agents in polymer body materials. The purpose of using antibacterial master batch is to facilitate the dispersion of antibacterial agent, because the antibacterial agent has undergone a pre dispersion in the master batch. More importantly, masterbatch technology can inhibit the discoloration of antibacterial agents, otherwise silver containing antibacterial agents will generally discolor in use or in molded products.