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In the context of the world's energy shortage and advocacy of low-carbon environmental protection, the importance of man-made fibers with the same chemical composition of natural cellulose and proteins is becoming increasingly prominent. Little PET bottles, pieces of old clothes, made of textiles after recycling and recycling, may have impacted and changed the whole earth and society as a whole, perhaps more than you think. Let's introduce recycled fiber for everyone.
Regenerated Cellulose Fiber
The regenerated cellulose using natural cellulose as a raw material is called a regenerated cellulose fiber because its chemical composition is the same as that of natural cellulose and its physical structure has been changed.
Viscose fiber is made from natural cotton linters and wood, and it has the following outstanding advantages.
(1) The hand feels soft and shiny, and the viscose fiber is as soft as the cotton fiber, and the silk fiber is smooth.
(2) Hygroscopicity and air permeability are good. The basic chemical composition of viscose fiber is the same as that of cotton fiber. Therefore, some of its properties are similar to those of cotton fiber. The difference is that its hygroscopicity and breathability are better than cotton fiber. It can be said that It is the best one of all chemical fibers for moisture absorption and air permeability.
(3) The dyeing performance is good. Because the viscose fiber has strong hygroscopicity, the viscose fiber is more easily colored than the cotton fiber. The color is pure and beautiful, and the chromatography is the most complete.
The biggest disadvantage of viscose fiber is its poor wet fastness and poor elasticity. The fabric is easy to wrinkle and is not easy to recover; acid and alkali resistance are not as good as cotton fiber.
Regenerated protein fiber
Refers to the use of natural proteins such as casein, soy, peanut, hair, silk fibroin, sericin, most of the composition is still the fiber of the protein.
The main applications are soy protein fiber, milk protein fiber and so on. This type of fiber has the following advantages:
(1) Soft to the touch, with silky soft luster, good moisture absorption and moisture conductivity.
(2) Since the fiber contains protein, it has good affinity with the skin and has certain antibacterial properties.
Poor fiber heat resistance, poor color brightness, and high price are the disadvantages of this type of fiber.
The regenerated protein fiber is suitable for knitting inner and outer garment products, and has shown great development prospects in the field of high-grade knitted underwear.
Rich fiber
Commonly known as tiger kapok, strong rayon. It is a denatured viscose fiber.
Compared with common viscose fibers (ie, rayon, artificial wool, and rayon), Prosperity Fiber has the following main features:
(1) The strength is high, that is, the rich and strong fiber fabric is stronger than the viscose fiber fabric.
(2) The shrinkage rate is small, and the shrinkage rate of rich and strong fibers is one time smaller than viscose fiber.
(3) The elasticity is good. The clothes made of rich and strong fibers are relatively flat and have better resistance to crease than viscose fibers.
(4) Alkali resistance is good, because rich alkali fiber has better alkali resistance than viscose fiber, so the selection of soap and other detergents in rich fabrics is not as stringent as viscose.
Due to the reduction of arable land and the depletion of petroleum resources, the production of natural fibers and synthetic fibers will be increasingly constrained; people are paying attention to the value of regenerated cellulose fibers while paying attention to the environmental performance of textile consumption. Know and discover. The application of regenerated cellulose fiber has now obtained an unprecedented opportunity for development.
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