亚麻纱线的漆酶催化多巴胺聚合染色  

Dyeing of flax yarns via laccase-catalyzed polymerization of dopamine

作　　者：李宇 亢福行 艾显超 杨允浩 LI Yu;KANG Fuhang;AI Xianchao;YANG Yunhao(College of Light Industry and Textile,Qiqihar University,Qiqihar 161006,China;Engineering Research Center of Hemp and Product in Cold Region,Ministry of Education,Qiqihar University,Qiqihar 161006,China)

机构地区：[1]齐齐哈尔大学轻工与纺织学院,黑龙江齐齐哈尔161006 [2]齐齐哈尔大学寒区麻及制品教育部工程研究中心,黑龙江齐齐哈尔161006

出　　处：《印染》2025年第1期21-25,共5页China Dyeing and Finishing

基　　金：2023齐齐哈尔大学大学生创新创业训练计划项目(x202310232069)。

摘　　要：为开发一种温和环保的亚麻纱线染色方法,以漆酶为催化氧化剂制备聚多巴胺黑色素,并采用一浴法对亚麻纱线进行染色,探讨了多巴胺在漆酶催化氧化作用下的聚合进程和产物结构,以及聚多巴胺染色亚麻纱线的机理。结果表明,漆酶催化多巴胺聚合形成聚多巴胺黑色素的过程中,伴有中间产物橙色多巴胺色素,使染色亚麻纱线呈现出黑棕色的外观。聚多巴胺黑色素一方面通过氢键吸附于亚麻纱线表面,另一方面以多巴胺单体为偶联剂与亚麻纱线的木质素侧基共价接枝,在亚麻纱线表面形成一层致密均匀的薄膜涂层,染色纱线耐皂洗色牢度可达到3级。In order to develop a mild and eco-friendly dyeing method for flax yarns,polydopamine is prepared using laccase as a catalyzer,and the flax yarn is dyed in one bath.The polymerization process and product structure of polydopamine under the catalytic oxidation of laccase are discussed,as well as mechanism of-linking to flax yarn.The results show that black polydopamine is formed by laccase-catalyzed with the orange by-product,which results in the dyed flax yarn showing a blackish-brown appearance.-pigments are not only adsorbed on flax yarns through hydrogen bonds,but also grafted on flax yarns via dopamine monomer as a coupling agent,resulting in a dense and uniform coating on the surface of flax yarn.The color fastnesses to soaping of dyed yarns reaches Grade 3.

关 键 词：亚麻纱线 多巴胺 漆酶 催化氧化 生物染色 

分 类 号：TS193.2[轻工技术与工程—纺织化学与染整工程]