Preparation method of ultraviolet-proof and washable flame-retardant polyester interwoven fabric

By combining phosphorus-based copolymer flame retardants and UV absorbers in flame-retardant polyester fabrics through chemical bonding technology, the problems of flame retardancy and UV protection durability have been solved, achieving high efficiency in water washing resistance and high temperature stability, and improving the comfort of wearing the fabric.

CN120905944APending Publication Date: 2025-11-07BOLUO FU YANG TEXTILE CO LTD
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Patent Information

Application Number
CN202511056518.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-30
Publication Date
2025-11-07

AI Technical Summary

Technical Problem

Existing flame-retardant polyester fabrics suffer from severe degradation of flame-retardant properties after washing, reduced UV protection, and poor stability of functional components during processing, which affects fiber strength.

Method used

A phosphorus-based copolymer flame retardant containing carboxyl functional groups was melt-blended with polyester chips to prepare a flame retardant masterbatch, which was then combined with a benzotriazole ultraviolet absorber and a titanium dioxide-coated zinc oxide composite powder finishing liquid. Chemical bonding was formed through low-temperature plasma treatment and segmented baking, thereby optimizing the fiber structure and processing technology.

Benefits of technology

It improves the fabric's washability and UV protection, widens the processing temperature window, and maintains the fiber's strength and comfort.

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Abstract

The invention relates to the technical field of textile materials, in particular to a preparation method of ultraviolet-proof and washable flame-retardant polyester interwoven fabric, which comprises the following steps: S1, preparing flame-retardant master batch; s2, mixing the flame-retardant master batch with the unmodified polyester chips, and performing melt spinning to obtain flame-retardant polyester staple fibers; s3, preparing a water-based ultraviolet protection finishing liquid; s4, gray fabric of a double-layer structure is prepared and formed; s5, performing low-temperature plasma treatment on the gray fabric; s6, the gray fabric subjected to plasma treatment is soaked in water-based ultraviolet protection finishing liquid; s7, the gray fabric obtained after padding is subjected to segmented baking; and S8, washing and drying the gray fabric baked in the S7 to obtain a polyester interwoven fabric finished product. According to the preparation method disclosed by the invention, a flame-retardant-ultraviolet synergistic interaction mechanism is constructed through molecular modification and structure synergistic regulation, so that the functional durability is improved, the wearing comfort and the integrity of mechanical properties of a matrix are considered, and efficient preparation of the multifunctional protective fabric is realized.
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Citation Information

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