Process for manufacturing flame-retardant yarn with basalt core using polyimide / viscose / aramid / pre-oxidized fiber

CN122169263APending Publication Date: 2026-06-09JIHUA 3542 TEXTILE CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
JIHUA 3542 TEXTILE CO LTD
Filing Date
2024-12-09
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing flame-retardant fiber materials have shortcomings in terms of high temperature resistance, cost, and processing difficulty, making it difficult to produce fire-fighting fabrics with excellent performance and reasonable prices.

Method used

The flame-retardant yarn manufacturing process adopts polyimide/viscose/aramid/pre-oxidized yarn and basalt core-spun process. By mixing polyimide fiber, aramid fiber, viscose fiber and pre-oxidized yarn in a certain proportion and core-spun with basalt filament, flame-retardant yarn is made. By utilizing the functional characteristics of each fiber, fireproof and flame-retardant fire-fighting fabric is made.

Benefits of technology

The prepared flame-retardant yarn has high temperature resistance, moisture absorption and breathability, high strength and low cost, and is suitable for fire protection fabrics, providing excellent flame-retardant properties.

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Abstract

The application relates to a polyimide / viscose / aramid / pre-oxygen filament and basalt core-spun process for manufacturing flame-retardant yarn, relates to the technical field of textile production, and comprises the following steps: mixing polyimide and aramid to form a mixed strip one, mixing viscose and pre-oxygen filament to form a mixed strip two, combining the mixed strip one and the mixed strip two into a mature strip on a drawing frame, making the mature strip into a roving, making the roving and basalt filaments into core-spun flame-retardant yarn on a spinning frame, and then performing doubling and double-twist to form double-twisted yarn; wherein the proportion of polyimide is 38%-42%, the proportion of viscose is 28%-32%, the proportion of aramid is 18%-22%, and the proportion of pre-oxygen filament is 8%-12%; the yarn is core-spun double-twisted yarn, and the yarn number is 14.8tex. The yarn has the characteristics of high high-temperature resistance, high moisture absorption and air permeability, high strength and low cost, the fireproof fabric made of the yarn has excellent fireproof and flame-retardant performances, and the yarn adds a novel flame-retardant textile product to the textile field.
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