Effects of Treating with Laccase on Properties of Dyed Cotton Fabric  

作　　者：王平 范雪荣 崔莉 王强 

机构地区：[1]Key Laboratory of Eco-textiles,Ministry of Education,Jiangnan University

出　　处：《Journal of Donghua University(English Edition)》2008年第5期517-521,共5页东华大学学报（英文版）

基　　金：Supported by the National High Technology Research and Development Program of China ( No.2007AA02Z218);Open Project Program of Key Laboratory of Eco-Textiles,Jiangnan University,Ministry of Education(No.KLET0625);Youth Fund ofJiangnan University (No.2006LQN002)

摘　　要：A laccase （Denilite IIS） was used to treat different cotton fabrics dyed with 0.2 g · L^-1 of vat dyes or reactive dyes. The results indicated that the laccase could remove the loosely adhering, unfixed or hydrolyzed dyes from the dyed fabric efficiently, which led to obvious improvements of color fastness. Furthermore, the wavelength of maximum absorbance of the residual solution of dyeing laccase-treated was different from that of the detergent-treated, which implied the laccase could accelerate structural changes of the adhering or hydrolyzed dyes from fabric in treating, resulting in obvious color changes of the residual solution. In addition, excessive laccase also could decolorize a few fixed reactive dyes from the dyed fabric, with a decrease of color strength and less further improvements of color fastness.A laccase (Denilite ⅡS) was used to treat different cotton fabrics dyed with 0.2 g·L-1 of vat dyes or reactive dyes. The results indicated that the laccase could remove the loosely adhering, unfixed or hydrolyzed dyes from the dyed fabric efficiently, which led to obvious improvements of color fastness. Furthermore, the wavelength of maximum absorbance of the residual solution of dyeing laccase-treated was different from that of the detergent-treated, which implied the laccase could accelerate structural changes of the adhering or hydrolyzed dyes from fabric in treating, resulting in obvious color changes of the residual solution. In addition, excessive laccase also could decolorize a few fixed reactive dyes from the dyed fabric, with a decrease of color strength and less further improvements of color fastness.

关 键 词：LACCASE cotton fabric vat dyes reactive dyes color fastness color strength 

分 类 号：TS19[轻工技术与工程—纺织化学与染整工程]