Do You Know about Viscose Fiber?

Viscose Fiber

Viscose fiber belongs to regenerated cellulose fiber, which is made from natural cellulose (pulp) as the basic raw material and spun by cellulose xanthate solution.

1. Viscose fiber has good alkali resistance. But it is not acid resistant. Its resistance to alkali and acid both are worse than cotton fiber.
2. The degree of polymerization of viscose fiber macromolecule is 250~300. The degree of crystallinity is lower than that of cotton, which is about 30%. It is looser. The breaking strength is lower than that of cotton, as 16~27cN/tex. It elongation at break is larger than that of cotton, as 16~22%. Its elastic recovery force and dimensional stability are poor. The fabric can be stretched easily. The wear resistance is poor.
3. The structure of viscose fiber is loose. Its moisture absorption ability is better than that of cotton.
4. The dyeing performance of viscose fiber is good.
5. The heat resistance and heat stability of viscose fiber are good.
6. The light resistance of viscose fiber is close to that of cotton.

Classification of Viscose Fiber

1.Ordinary fiber
Ordinary viscose fiber can be divided into cotton type (artificial cotton), wool type (artificial wool), mid-length viscose staple fiber, crepe-like staple and filament type (artificial silk).
For ordinary viscose fiber, the regularity and uniformity of the structure are poor and the physical and mechanical properties are poor. The dry strength and wet strength are low. The extensibility is big.
 
2.High wet modulus viscose fiber
High wet modulus viscose fiber has higher strength and wet modulus. In wet condition, the strength is 22cN/tex and elongation is lower than 15%.
 
3.Strong viscose fiber
Strong viscose fiber has higher strength and fatigue resistance. Its structure has good regularity and uniformity. Its mechanical property is good and breaking strength is high. The elongation at break is high and the modulus is low.
 
4.Modified viscose fiber
There are grafted fiber, flame retardant fiber, hollow fiber, conductive fiber, etc.

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