A method for preparing a plant dyeable polyester cosmetic brush bristle fiber

By introducing sulfonated graphene modification and gradient etching process into polyester fibers, the dyeing problem of plant dyes on synthetic fibers has been solved, achieving high-efficiency dyeing under normal pressure and improved powder-grabbing performance, which is suitable for the green production of high-end cosmetic brushes.

CN122406408APending Publication Date: 2026-07-17HENAN ZHENGYI IND CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HENAN ZHENGYI IND CO LTD
Filing Date
2026-05-27
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies make it difficult to achieve efficient atmospheric pressure dyeing of plant dyes on synthetic fibers. Furthermore, traditional synthetic fiber dyeing processes suffer from insufficient environmental friendliness, inadequate biomimicry, difficulty in synergizing dyeing and function, and limitations in the application of plant dyes.

Method used

By introducing sulfonated graphene into polyester fibers and combining it with gradient etching, a biomimetic rough surface is constructed to provide binding sites for plant dyes, thereby achieving a synergistic improvement in high-efficiency dyeing under normal pressure and powder-grabbing performance.

Benefits of technology

It achieves efficient dyeing of plant dyes under normal pressure, improves the powder-grabbing performance and soft touch of the fiber, meets the requirements of green and sustainable development, and is suitable for the large-scale production of high-end cosmetic brushes.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明公开了一种可植物染料染色的聚酯化妆刷刷毛纤维的制备方法,以聚酯为基材,磺酸化石墨烯作为功能添加剂,通过熔融共混纺丝结合梯度刻蚀工艺制得改性聚酯刷毛。磺酸化石墨烯在聚酯体系中引入磺酸基(–SO3H)等极性基团,并降低聚酯局部结晶度,提高纤维对植物染料的亲和性;同时,梯度刻蚀在纤维表面构建微纳粗糙结构并进一步暴露羟基、羧基等活性基团,增强染液润湿、扩散及染料结合能力,从而实现聚酯纤维在常温常压条件下对植物染料的有效染色。本发明制备的聚酯刷毛兼具合成纤维的加工稳定性和天然动物毛的使用性能,采用绿色天然植物染料替代传统合成染料,工艺简便,具有环保、可常压染色、抓粉力强、安全无毒等优势,符合美妆行业绿色可持续发展要求,适用于高端化妆刷的规模化生产,市场前景广阔,推广价值显著。
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