Special type cellulose viscose

Abstract

The invention provides a special-type viscose fiber with high alpha-cellulose content, which includes viscose staple fiber and viscose filament yarn. The invention is characterized in containing the raw materials by the weight percentages: bamboo pulp 85-95%and cotton pulp 5-15%. The preparation method has the following steps: bamboo material and cotton material preparing, cropping, washing, boiling, desanding, concentrating, multistage bleaching, acid treating, desanding, concentrating, pulping and mixing, dipping, pressing, crushing, maturing, yellowing, rubbing, post-dissolving, mixing, surge tank filtrating, debubbling, filtrating, spinning, drafting, bunching, severing, refining, drying, and packing. Various kinds of requirements of downstream customers, from textiles to nonwoven sanitary accessories, can be satisfied; and the functional characteristic can be used for producing the raw materials, such as acetate, sponges, films, cigarettes and so on.

Description

technical field [0001] The invention relates to the field of synthetic fibers, in particular to a special viscose fiber. Background technique [0002] Viscose fiber has the characteristics similar to natural fibers, and is an irreplaceable variety of other fibers. As a textile raw material, it has a wide market prospect because of its good moisture absorption, breathability, dyeing, and antistatic properties. Using natural cellulose such as cotton linters and wood as raw materials, it is made through a series of chemical treatments, but the viscose fiber produced is not functional, and it is difficult to meet the characteristics of indoor textiles, non-woven sanitary products and other industrial applications. However, the amount of first fiber is low, the content of semi-fiber is high, and the reaction performance of bamboo cellulose varies greatly, which makes the maturity of viscose fluctuate greatly after the yellowing process, and the distribution of xanthate groups is ...

AI Technical Summary

Problems solved by technology

[0002] Viscose fiber has the characteristics similar to natural fibers, and is an irreplaceable variety of other fibers. As a textile raw material, it has a wide market prospect because of its good moisture absorption, breathability, dyeing, and antistatic properties. Using natural cellulose such as cotton linters and wood as raw materials, it is made through a series of chemical treatments, but the viscose fiber produced is not functional, and it is difficult to meet the characteristics of indoor textiles, non-woven sanitary products and other industrial applications. However, the amount of first fiber is low, the content of semi-fiber is high, and the reaction performance of bamboo cellulose varies greatly, which makes the maturity of viscose fluctuate greatly after the yellowing process, and the distribution of xanthate groups is uneven, and the viscose is turbid. , the structural viscosity is large, which seriously affects the quality of the finished fiber, and the investment is huge, the air pollution is serious, and it cannot meet the requirements of the enterprise.