黑枸杞色素的提取及其对柞绢绸的染色  

Extraction of dyes from black lycium barbarum and its dyeing on tussah silk

作　　者：杜春霖 贾艳梅 DU Chunlin;JIA Yanmei(College of Chemical Engineering and Machinery,Eastern Liaoning University,Dandong 118003,China)

机构地区：[1]辽东学院化工与机械学院,辽宁丹东118003

出　　处：《印染》2022年第7期29-32,共4页China Dyeing and Finishing

基　　金：辽宁省教育厅科学技术项目(No.LNSJYT202001);辽宁省普通本科高等学校校际合作重大科研项目(LNSJYT2020067);中央财政支持地方高校改革发展专项资金(No.ldxy2020003);2021年丹东市科技指导计划项目。

摘　　要：从黑枸杞中提取天然色素,研究pH及金属盐对色素稳定性的影响,并探讨了黑枸杞色素在柞绢绸上的染色效果。黑枸杞色素优化的提取条件为:在70℃提取100min,物料(黑枸杞)与溶剂(去离子水)之比为1g∶20mL。黑枸杞色素在不同的pH条件下呈现不同的色泽。FeSO_(4)对黑枸杞色素具有显著的增深作用,同时会引起色调的变化。采用FeSO_(4)预媒染剂,在pH=3.0条件下进行柞绢绸黑枸杞色素染色,织物的耐皂洗和耐摩擦色牢度可达到3级。Natural lycium barbarum pigment is extracted from black lycium barbarum.The effects of pH and met⁃al salts on the stability of pigments are studied and characterized by UV-vis spectroscopy.The dyeing effect of lycium barbarum pigment on tussah silk is discussed.The results show that the optimized extraction condi⁃tions of lycium barbarum pigment are as follows:extract at 70℃for 100 min,and the ratio of material(lycium barbarum)to solvent(deionized water)is 1 g∶20 mL.Lycium barbarum pigment shows different colors under different pH conditions.Ferrous sulfate has a significant hyperchromic effect on lycium barbarum pigment,and causes changes in hue.Lycium barbarum pigment is suitable for dyeing tussah silk at pH=3.0.Ferrous sulfate is suitable for premordant dyeing,and the color fastnesses to soaping and rubbing of the dyeings can reach Grade 3.

关 键 词：植物染料 黑枸杞色素 染色 柞绢绸 

分 类 号：TS193.62[轻工技术与工程—纺织化学与染整工程]