Printing preparation method of meta-position pure aramid fiber fabric

By slurping the anti-ultraviolet finishing agent and flame retardant crosslinking agent on the meta-aramid fabric, and printing with dispersed dyes and cationic dyes, and steaming and fixing the color with a long ring vaporizer, the problem of poor dyeing and printing effects of the prior art intermediate aramid fabric is solved, and higher color fastness and production efficiency are achieved.

CN119640600AInactive Publication Date: 2025-03-18SHAANXI ZHONGBANG TEXTILE NEW MATERIALS TECHNOLOGY RESEARCH INSTITUTE CO LTD
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Patent Information

Application Number
CN202411562585.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-05
Publication Date
2025-03-18
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The prior art is difficult to effectively dye and print meta-aramid fabrics, resulting in low color fastness after sun exposure, slow production speed, and mainly cationic dyes, and no application of dispersed dyes is involved.

Method used

The multi-thrust and one-rolling process are used to plunge the UV finishing agent and flame retardant crosslinking agent on the hot melt base machine. The printing is performed using a circular screen printing machine and two color pastes (dispersed dyes and cationic dyes), and saturated steam and fixed colors through long-ring evaporation or bottomless evaporator, and finally cleaned with a soap washing machine.

Benefits of technology

It improves the anti-sun-dense ability of meta-pure aramid fabrics, enhances printing color fastness, and achieves deeper color yield and fullness. It is suitable for the continuous industrial production of meta-pure aramid fabrics.

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Abstract

The invention discloses a printing preparation method of a meta-position pure aramid fiber fabric. The printing preparation method comprises the following specific steps: (1) lightly scouring the meta-position pure aramid fiber fabric on a scouring machine, washing with water and drying; (2) padding the meta-position pure aramid fiber fabric subjected to light refining treatment by using a hot melting bottoming machine and adopting a multi-dipping and one-rolling process, and adding an anti-ultraviolet finishing agent and a flame-retardant cross-linking agent into dipping treatment liquid, so as to further improve the anti-solarization capability of the aramid fiber fabric; (3) printing each color spot of the meta-position pure aramid fiber fabric by using a rotary screen printing machine and two color pastes; the two dye pastes are disperse dye printing paste and cationic dye printing paste; (4) performing saturated steaming color fixation by using a long-ring steamer or a long-ring bottomless steamer; and (5) washing the color-fixed meta-position pure aramid fiber fabric by using a soaping machine, wherein the washing comprises cold washing, hot washing, soaping and drying. Before printing, the fabric is padded with an anti-ultraviolet finishing agent, and the color fastness to sunlight after printing is improved to a certain extent.
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