1. Lyocell fiber Tencel fiber is the trade name of the first generation of recycled fiber produced by British COUR TAULDS company. The scientific name is Lyocell fiber. The production process does not pollute the environment, does not destroy the ecology, the fiber feels soft and the moisture absorption rate is high (11%). The wet and dry strength is similar, and the formed Fabric has good dimensional stability. The raw material used in Lyocell fiber is wood pulp, and the wood is also fast-growing wood, that is, the raw material is recyclable. Lyocell fiber is produced by using an organic solvent of organic amine oxide (N-methylmorpholine) to dissolve lignin. Solvent spinning is a closed process route, and the organic solvent of organic amine oxide is harmless. When the Lyocell fiber and its fabric are discarded, it can be biodegraded and decomposed into carbon dioxide and water. There are two types of Lyocell fibers, standard Tencel fiber (with microfibrillation) and Tencel A100 (without microfibrillation) fibers, all of which are soft, tough, anti-static, with good wrinkle recovery and comfortable elasticity.
2. The raw material of polylactic acid fiber polylactic acid fiber is corn. In fact, corn fiber fiber, corn lactic acid fiber, corn polypropanol fiber, etc., in 1989, Japan Bell Textile and Shimadzu jointly developed corn gathering. Lactic acid fiber, a fiber named Lactron was developed in 1994. Then, in 1997, CDP Company of the United States fully developed corn polylactic acid fiber and formed industrial production, making polylactic acid fiber a new era of green fiber in the field of textile production.
The polylactic acid fiber has crystallinity, transparency and heat resistance similar to those of the polyester fiber, and the spinning method adopts a melt spinning method with low cost and less environmental pollution. Polylactic acid fiber (PLA) fiber has high heat resistance and high strength. Although it is not flame retardant, it has certain self-extinguishing properties, good elastic recovery and curl retention, and good morphological stability and wrinkle resistance. well. The raw material of PLA is all from plants, so it is a kind of renewable green fiber, and it is also an environmentally friendly fiber because it can be degraded by microorganisms into carbon dioxide and water in nature.
3. Soy protein fiber Soy protein fiber is a kind of soybean vegetable protein synthetic silk. The soybean meal is firstly immersed and separated, and pure globular protein is proposed. Then, by adding functional additives, the protein spatial structure is changed and the hydroxyl group is under appropriate conditions. The polymer is graft copolymerized, and the soybean protein fiber is formed by wet spinning, and the fiber performance is stabilized by acetalization treatment. Soybean protein fiber uses soybean or waste soybean meal to make fiber without pollution, and at the same time makes full use of waste resources. Soy fiber is a biodegradable recycled fiber with good physical, mechanical and chemical properties.
4. Regenerated protein fiber Recycled protein fiber is rich in raw materials. People can use non-spun protein fiber (porcine hair, human hair, chicken feather, mountain wool, etc.) and waste protein fiber material to make regenerated animal protein fiber. The process of producing regenerated animal protein fiber is divided into two steps: hydrolyzing protein and making protein fiber. The regenerated protein fiber has excellent ecological type, good degradability, wide source of raw materials, and protein fiber and cellulose. The advantages of fiber are all at the same time, and the price is low.
5. Bamboo fiber Bamboo fiber is made of natural bamboo (hair bamboo, tea bamboo, light bamboo, short-stem bamboo, etc.), which has the functions of deodorization, antibacterial and negative ions. Bamboo fiber uses acid-base chemical raw materials in the production process. The acid solution can be reused in cooking. The lye can have a high recovery rate, no pollution to the atmosphere and the surface, and the discharge water can meet the national environmental discharge requirements. A new type of green viscose fiber.
Sixth, other new ecological fiber 1, casein fiber (commonly known as milk fiber): At present, the only casein protein fiber in the world to achieve industrial production is "Chinon" of Toyobo Co., Ltd., but only 100kg of milk can extract 4kg of protein. The cost is high and it has not been widely promoted.
2, spider silk: the use of biotechnology to produce fibers with natural spider silk excellent performance is currently one of the international research applications of biotechnology, spider silk has a high strength, but at the same time but silky soft and shiny, with High functionality.
3, banana fiber: banana fiber has good gloss, high absorption, and environmentally friendly.
4, kapok fiber: kapok fiber is hollow fiber, very light, not only has shape stability, but also excellent moisture absorption, moisture release performance, but the strength is not very good, like banana fiber, are developed by Japanese companies and Eco-fibers manufactured and manufactured.
5. Tree-building fiber: Tree-building (green-skin tree) is a wild-type fast-growing plant growing in the northeastern and northwestern mountains of China. Its bast contains a lot of high-quality fiber. The mulberry fiber has excellent quality, white color, natural silk appearance, soft hand feeling, and silk and cotton. It has good performance stability and good corrosion resistance, but it is not resistant to strong acid.
6. Other synthetic fibers that may be degraded: Some synthetic fibers are biodegradable by themselves. In the natural environment after being discarded, they can be explained by the action of microorganisms, and will not cause long-term or permanent pollution to the environment. The Sensura TM fiber produced by Welloman and the fiber such as PLLA, PHB, and PBS developed are all decomposable polymer fibers.
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