Several regenerated fibers and their identification methods

Several regenerated fibers and their identification methods

Regenerated fiber has excellent hygroscopicity and wearing comfort. It is an ideal textile raw material with development potential in the textile and garment industry.
Overview of regenerated fiber:
1. Tencel fiber
Tencel fiber is a mixture of coniferous wood pulp, water and solvent amine oxide, heated until completely dissolved, and no derivatives will be produced during the dissolution process And chemical action, after impurity removal and direct spinning, its molecular structure is a simple carbohydrate. Tencel fiber can be completely decomposed in the soil and does not pollute the environment; in addition, the amine oxide solvent used in production is completely harmless to the human body, can be almost completely recycled, and can be used repeatedly. The cellulose molecules contained in the raw pulp during production It does not undergo chemical changes, has no by-products, and no waste is discharged out of the factory. It is an environmentally friendly or green fiber. This fiber fabric has good hygroscopicity, comfort, drape, stiffness, and good dyeability. In addition, it can be blended with cotton, wool, linen, nitrile, polyester, etc., and can be ring-spun, open-end spinning, or core-spun. Spun into various cotton and wool-type yarns, core-spun yarns, etc.
2. Modal fiber
Modal fiber is a brand new cellulose fiber. The raw material of Modal fiber comes from natural wood and can be naturally degraded after use. Because this type of fiber uses natural cellulose as raw material, it is biodegradable and does not cause serious environmental pollution problems like viscose during the fiber production process. It is a new environmentally friendly fiber in the 21st century. Modal fiber is half the price of Tencel fiber and is the second generation regenerated cellulose fiber. Modal fiber can be blended and interwoven with a variety of fibers to bring out the characteristics of each fiber to achieve better results. Modal fiber fabric has better hygroscopicity and breathability than pure cotton fabric. It has soft hand feel, good drape, comfortable wearing and bright color. It is a natural mercerized fabric.
3. Soybean protein fiber
Soybean protein fiber is made from soybean waste meal after oil extraction. It uses bioengineering technology to purify the globulin in soybean meal, and through the action of auxiliaries and biological enzymes, it can The purified globulin changes the spatial structure, and then adds high polymers such as hydroxyl and amino groups to prepare a protein spinning liquid of a certain concentration, and then spins it using a wet spinning process. Soybean meal is a by-product of the oil and fat workshop. It has very high resources in our country. It belongs to the comprehensive utilization of waste. The resources are inexhaustible. Soy protein fiber can be called the “green fiber” of the new century. Since the outer layer of soy protein fiber is basically protein, it has good affinity with human skin and contains a variety of amino acids necessary for the human body, which has good health care effects. In the soybean protein fiber spinning process, a certain amount of Chinese herbal medicine with bactericidal and anti-inflammatory effects is added to the protein side chain through chemical bonds. The effect is significant and long-lasting, which avoids the difficulty of developing functional products after finishing cotton products. Ongoing shortcomings. Soy protein fiber fabric feels soft and smooth, has good moisture absorption and breathability, has a silk-like luster, has better wrinkle resistance than silk, and has good dimensional stability.
4. Bamboo fiber
Bamboo fiber is a new type of regenerated cellulose fiber independently developed and industrialized in my country after soybean protein fiber. Bamboo fiber is divided into bamboo fiber and bamboo original fiber. Bamboo fiber is made from moso bamboo as raw material, functional additives are added to bamboo pulp, and processed by wet spinning. Bamboo raw fiber is a fiber produced by treating moso bamboo with natural biological agents. Bamboo pulp, used as a raw material for spinning, comes from quick-cut fresh bamboo and is very rich in resources. Its waste will not cause environmental pollution when buried and burned. It is an environmentally friendly fiber and meets the needs of green consumption. Bamboo fiber has properties similar to viscose fiber. Bamboo fiber fabric has good moisture absorption and air permeability, and its drape and dyeing properties are also relatively good. It has silk-like luster and feel, and has antibacterial, deodorant, and UV protection functions.
5. Viscose-based chitin fiber
Chitin is widely found in aquatic products such as shrimps and turtles, and in the shells of arthropods such as insects, as well as in the cell walls of fungi and algae. Viscose-based chitin fiber is a fiber made by mixing chitin, chitosan and cellulose through a conventional wet spinning process. It is bioactive, biodegradable and biocompatible, and has excellent moisture absorption and moisturizing functions. Fabrics blended with chitin fiber and cotton have broad development prospects in the application and development of health-care clothing due to their deodorizing function.
The Tencel fiber, Modal fiber, soybean protein fiber, bamboo fiber and viscose-based chitin fiber and viscose fiber, cotton, silk, wool and polyester fiber were used microscopic method, dissolving method, burning method and coloring method respectively. .

Source: “China Textile Network”

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