紫草色素的稳定性及在羊毛上的染色性能  

Stability of shikonin and its performance of dyeing on wool fabrics

作　　者：余志成[1] 杨斌[1] 周秋宝[1] 

机构地区：[1]浙江工程学院,浙江杭州310012

出　　处：《毛纺科技》2003年第2期14-16,共3页Wool Textile Journal

基　　金：浙江省教委资助项目

摘　　要：用无水乙醇提取紫草色素 ,并对其稳定性以及在羊毛上的染色性能进行了研究分析。实验结果表明 :紫草色素具有良好的热稳定性及耐弱酸稳定性 ;较高的染色温度、弱酸性条件有利于紫草色素在羊毛纤维上获得较高的得色率 ;媒染剂的加入使织物呈现不同的颜色特征值 ,具有氧化性或还原性的媒染剂如Cr6+、Sn2 +、Fe2 +会破坏紫草色素的结构 。In this paper the shikonin is extracted with ethanol. It's stability and performance of dyeing on the wool fabrics are studied and analyzed.The results of the experiment indicate that shikonin has fairly good heat stability and weak acid resistant.The K/S value on the wool fabrics depends on the higher temperature and weak acid conditions.Wool fabrics will get different color characterization value with different metalion.Some metalion such as Cr 6+ ,Sn 2+ ,Fe 2+ will damage the structure of the shikonin and lead to changing of the color on the wool fabrics.

关 键 词：紫草色素 稳定性 羊毛纤维 染色性能 织物 

分 类 号：TS193.62[轻工技术与工程—纺织化学与染整工程]