The advantages and disadvantages of sticky cotton fabri […]
The advantages and disadvantages of sticky cotton fabric
The price of viscose cloth fabrics, the advantages and disadvantages of viscose cloth fabrics, there are more and more fabrics on the market, what is the price of viscose cloth in the market? When it comes to viscose cloth, it will mention rayon and rich fiber cloth. , Their price is the price of viscose cloth.
If we want to understand the price of viscose cloth, we must know that the so-called rayon is viscose fiber, which is a major variety of rayon fiber. The natural cellulose is alkalized to form alkali cellulose, and then interacts with carbon disulfide to generate cellulose xanthogen acid. The viscous solution obtained by dissolving in dilute alkali solution is called viscose. Silk and a series of post-processing steps are used to form viscose fiber.
The basic composition of viscose fiber is cellulose. The cross-section of ordinary viscose fiber has a zigzag-shaped skin-core structure, and the longitudinal direction is straight and grooved. The rich fiber has no skin-core structure, and the cross-section is round. If we want to understand the price of viscose cloth, we must know that viscose fiber has good moisture absorption. Under normal atmospheric conditions, the moisture regain rate is about 13%. After absorbing moisture, it expands significantly, and the diameter increases up to 50%, so the fabric feels hard after being put into water, and the shrinkage rate is large. The breaking strength of ordinary viscose fiber is smaller than that of cotton, about 1.6~2.7cN/dtex; the elongation at break is greater than that of cotton, which is 16%~22%; the wet strength decreases more, about 50% of the dry strength, and the wet elongation The length increases by about 50%. Its modulus is lower than that of cotton, it is easy to deform under a small load, and its elastic recovery performance is poor, so the fabric is easy to stretch and its dimensional stability is poor. The strength of the rich fiber, especially the wet strength, is higher than that of ordinary viscose, the elongation at break is smaller, and the dimensional stability is good.
Ordinary viscose has poor abrasion resistance, while rich fiber has improved. If we want to understand the price of viscose cloth, we must know that the chemical composition of viscose fiber is similar to cotton, so it is more alkali-resistant but not acid-resistant, but it is inferior to cotton. Rich fiber has good alkali and acid resistance. Similarly, the dyeability of viscose fiber is similar to cotton, the dyeing chromatogram is complete, and the dyeing performance is good. In addition, the thermal properties of viscose fiber are similar to cotton, and the density is close to that of cotton, which is 1.50~1.52g/cm3. The hydroxyl groups of cellulose macromolecules are prone to a variety of chemical reactions. Therefore, the viscose fiber can be modified by grafting and other methods to improve the performance of the viscose fiber and produce various special-purpose fibers.
Ordinary viscose fiber has good hygroscopicity, is easy to dye, is not easy to be static, and has good spinnability. Short fibers can be spun purely or blended with other textile fibers. The fabric is soft, smooth, breathable, comfortable to wear, bright in color and good in color fastness after dyeing. It is suitable for making underwear, outerwear and various decorative articles. The filament fabric is light and thin, and it can also be used as a clothing material to weave quilts and decorative fabrics. The disadvantages of this type of viscose fiber are poor fastness, low wet modulus, high shrinkage rate and easy deformation, poor elasticity and wear resistance.