Current status of nano antibacterial textiles and antibacterial technology
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Current status of nano antibacterial textiles and antibacterial technology
Current status of nano antibacterial textiles and antibacterial technology
First, the status of nano antibacterial textiles
In the late 1980s, long-lasting 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 mechanism, it can be divided into contact antibacterial agent and photocatalytic antibacterial agent. Due to the development of nanotechnology in recent years, it is possible to mass-produce sub-micron and nano-scale inorganic antibacterial agents, and blend them into chemical fibers to ensure the industrialization of antibacterial chemical fiber.
Recently, many fiber manufacturers in many countries in the world, especially in Japan, the United States, and the United Kingdom, have seen the importance of antibacterial fibers. They have developed and produced their own antibacterial fibers and their textiles, in which antibacterial agents are added to the spinning solution. Most of the fibers produced in the process are polyester, acrylic, nylon and the like.
The ultra-fine nano antibacterial powder developed by the National Super Powder Engineering Center can impart antibacterial ability to the resin and inhibit various bacteria, fungi and molds. The "Nano-layered silver-based inorganic antibacterial fiber" jointly developed by the China Textile Research Institute and Beijing Settray uses an ultrafine silver ion phosphate crystal powder as an inorganic filler, which is first mixed with a polyester melt to form an antibacterial masterbatch. A certain proportion of antibacterial masterbatch is added to the spinning to produce a permanent antibacterial polyester fiber. The antibacterial polyester fiber has the characteristics that the antibacterial agent does not dissolve, does not change the color of the fiber, and has good spinnability.
Second, the new results of nano antibacterial technology
Xtep Nano Resistant Technology: The nano anti-silver antibacterial sports shoes developed by the Institute of Physics and Chemistry of the Chinese Academy of Sciences have made Xtep the first antibacterial sports shoe enterprise in China to reach the international level. At the same time, it is the world's first generation of nano silver antibacterial sports shoes, marking the Chinese sports shoes into the field of high-tech.
Nano-antibacterial biological protein fiber technology and achievements: The “Nano-antibacterial bio-protein fiber†project 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. Sexuality has filled the domestic gap and is at the international leading level. The invention of this technology marks the first time that human beings have successfully integrated modern biotechnology with modern textile technology, marking the beginning of a new high-tech revolution in the world's wool industry and the new generation.
Third, some problems in the production of nano-antibacterial materials
In recent years, the research and development of nano-powder-modified textile polymer materials and nano-dyeing technology based on nanomaterials and nanotechnology have been very prosperous, and some achievements have been made in the high-performance and functionalization of textile products. To a certain extent, it has achieved industrialization, effectively promoted the development of high-tech in the printing and dyeing industry, and upgraded the level of traditional printing and dyeing products.
The important direction of the adoption of antibacterial textiles and the upgrading of textiles for daily use. Antibacterial fiber and antibacterial fabric can effectively prevent the growth and growth of microorganisms on the fiber fabric, have the function of hygienic self-cleaning, and have the deodorizing effect. The antibacterial fiber contains an antibacterial agent, and after the strong action such as washing and surface abrasion, the antibacterial effect of the fiber hardly decreases.
The key to the development of antimicrobial fibers is to simultaneously achieve the antimicrobial, safety and processability requirements of the spinning process. Inorganic antibacterial agents are a new class of long-acting, broad-spectrum, high-efficiency and safe antibacterial agents. In addition, the high temperature resistance of inorganic antimicrobial agents is not achievable with other types of antimicrobial agents.
Antibacterial fibers can be achieved by antibacterial masterbatch technology. The antibacterial masterbatch is a form in which the antibacterial agent is present in a high concentration in the polymer body material. The purpose of using the antimicrobial masterbatch is to facilitate dispersion of the antimicrobial agent since the antimicrobial agent has undergone a pre-dispersion in the masterbatch. More importantly, the problem of discoloration of the antibacterial agent can be suppressed by the masterbatch technology, otherwise the antibacterial agent containing silver generally discolors during use or in the molded article.
[China Antibacterial Fabric Network ]
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