Method for the production of long apocynum xibum wet-spun yarn

By forming a stable quaternary ammonium salt-aromatic ether composite antibacterial layer on the surface of Apocynum venetum fibers, the problem of easy loss of antibacterial components in long Apocynum venetum wet spinning is solved, achieving efficient and long-lasting antibacterial effect and excellent yarn performance.

CN122406533APending Publication Date: 2026-07-17SHANDONG SHENGHE TEXTILE CONSTR GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANDONG SHENGHE TEXTILE CONSTR GRP CO LTD
Filing Date
2026-04-23
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In the current process of preparing long Apocynum venetum wet spinning yarn, antibacterial components are easily lost, and it is difficult to simultaneously ensure the antibacterial durability, yarn strength, and wet spinning spinnability of the yarn.

Method used

A specific structure of quaternary ammonium salt-aromatic ether composite antibacterial layer is used to pretreat Apocynum venetum fiber. Combined with optimized wet spinning process parameters, antibacterial components are synthesized through free radical copolymerization and form stable chemical bonds on the fiber surface, ensuring a strong bond between the antibacterial components and the fiber.

Benefits of technology

It achieves long-lasting antibacterial properties in the yarn, with an initial antibacterial rate of over 99%, and maintains an antibacterial rate of 96% after 20 washes. In addition, the yarn has excellent breaking strength and uniformity, and low fuzziness.

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Abstract

The application discloses a preparation method of long apocynum venetum wet-spun yarn. First, a base copolymer is prepared by free radical copolymerization of 2-hydroxyethyl methacrylate, 2-(dimethylamino) ethyl methacrylate and glycidyl methacrylate, and then reacted with 1-bromododecane to obtain an antibacterial component containing a quaternary ammonium salt antibacterial structural unit, a hydroxyl compatible structural unit and an epoxy anchoring structural unit; then the antibacterial finishing liquid is prepared, apocynum venetum fibers are impregnated, liquid rolled, dried, opened, carded and drawn, then wetted, wet-spun, dried and set, and wound to obtain long apocynum venetum wet-spun yarn. The application can improve the inherent stability of the antibacterial component in the wet spinning process, and has antibacterial durability, spinnability and yarn quality.
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