Cationic antibacterial flame-retardant fiber and preparation method thereof

Through the two-component composite spinning process, cationic antibacterial flame retardant fibers with a leather core structure were prepared, which solved the problem of the weakening of the antibacterial properties of existing antibacterial polyester materials over time, and achieved the long-term antibacterial and flame retardant properties of the fiber, taking into account the strength and application breadth of the fiber.

CN119685972APending Publication Date: 2025-03-25QUANZHOU FENGSHENG NEW MATERIALS TECHNOLOGY CO LTD
0 Cites 2 Cited by

Patent Information

Application Number
CN202411837917.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2025-03-25

AI Technical Summary

Technical Problem

During the use of existing antibacterial polyester materials, the antibacterial agent is gradually released, resulting in the gradual weakening of the antibacterial performance over time, and the failure to achieve a lasting antibacterial effect. In addition, the addition of flame retardant usually affects the strength of the fiber, making it difficult to take into account both antibacterial, flame retardant and fiber properties.

Method used

Two-component composite spinning process is used to prepare cationic antibacterial flame retardant fibers with a leather core structure. By preparing high-temperature polymerizable cationic antibacterial agents, and esterified and polycondensed with raw materials such as refined terephthalic acid and ethylene glycol, antibacterial polyester and flame retardant polyester are formed, which serve as the leather and core layers of the fiber respectively.

Benefits of technology

The long-term antibacterial properties of the fiber are achieved. The addition of antibacterial agents does not affect the material properties. The fibers have both antibacterial and flame retardant properties, have good strength, and are suitable for a wide range of applications.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention discloses a cationic antibacterial flame-retardant fiber and a preparation method thereof, the cationic antibacterial flame-retardant fiber is formed by composite spinning of a bi-component modified material, the cross section of the fiber is of a skin-core structure, and both a skin layer material and a core layer material adopt an in-situ copolymerization method. The skin layer material is the prepared high-temperature-resistant polymerizable cationic antibacterial agent, and copolymerization modified polyester with good spinnability and high antibacterial activity is obtained after copolymerization reaction. And the core layer is common phosphorus flame-retardant polyester. The cationic antibacterial flame-retardant fiber is prepared through bi-component composite spinning. The fiber strength of the cationic antibacterial flame-retardant polyester fiber prepared by the method is greater than or equal to 2.8 cN / dtex, the limit oxygen index LOI is greater than or equal to 29%, and the antibacterial rate meets the AAA level standard. The preparation method is simple, convenient in raw material source and easy for industrial production.
Need to check novelty before this filing date? Find Prior Art