Preparation process of high-toughness tencel fibers for clothes

Abstract

A preparation process of high tenacity tencel fibers for clothing. The preparation process of the present invention uses logs as raw materials for fiber preparation, and obtains broken wood after extrusion and crushing, soaks in dilute alkali solution, and obtains alkali cellulose solution after filtration; Aging, yellowing, aging and other processes to obtain cellulose xanthate solution, use acidic solution to precipitate cellulose, and prepare pure wood cellulose pulp; use negative pressure suction to reduce the boiling point and water content of the cellulose solution to the optimum Spinnability. Using high-pressure spinning technology, the solvent in the thin stream of spinning solution is quickly volatilized by hot air flow, and solidified into primary fibers. Citric acid is used as a crosslinking agent to improve fiber toughness. A kind of preparation method of bamboo fiber for high tear-resistant clothing provided by the present invention, its operation is simple, does not use organic solvent, green environmental protection, citric acid carries out post-finishing to primary fiber, can form network connection structure on fiber surface, makes The fiber toughness has been significantly improved and the wrinkle resistance has been significantly increased.

Description

technical field [0001] The invention relates to a kind of fiber, especially a kind of preparation technology of high tenacity tencel fiber for clothing. Background technique [0002] Tencel is a solvent-based cellulose fiber, which has good environmental protection characteristics. The raw material comes from wood, which can be continuously and naturally regenerated. The wood is made into wood pulp, which is dissolved in ammonium oxide solvent and spun directly. It is completely completed under physical action, the ammonium oxide solvent is recycled, and the recovery rate is over 99%. It is non-toxic, non-polluting, and the Tencel product can be biochemically degraded after use, and will not pollute the environment. Therefore, it is called "21st Century Green Fiber" and has obtained the international green environmental protection certificate. [0003] Tencel fiber has excellent performance, not only has high dry and wet strength, the dry-wet strength ratio reaches 85%, but...

AI Technical Summary

Problems solved by technology

[0004] However, there is an obvious shortcoming in the Tencel fiber currently on the market. At present, there are few finishing processes for Tencel fiber. Generally, after wet spinning is used, the fiber is not further processed, so the fiber strength is limited. After a long time of use, it is easy to break the thread, so the toughness of the tencel fiber is limited, which also leads to the low durability of the clothes

In addition, a large amount of organic solvents are used in the traditional tencel preparation process, which not only pollutes the environment, but also easily causes organic solvent residues