纺织学报 ›› 2008, Vol. 29 ›› Issue (8): 67-70.

• 染整与化学品 • 上一篇    下一篇

紫胶色素的稳定性

王祥荣;侯学妮;丁雷;程万里   

  1. 苏州大学材料工程学院 江苏苏州215021
  • 收稿日期:2007-09-15 修回日期:2008-03-28 出版日期:2008-08-15 发布日期:2008-08-15

Stability of lac pigment

WANG Xiangrong;HOU Xueni;DING Lei;CHENG Wanli   

  1. School of Material Engineering;Soochow University;Suzhou;Jiangsu 215021;China
  • Received:2007-09-15 Revised:2008-03-28 Online:2008-08-15 Published:2008-08-15

摘要: 为给紫胶色素在纺织品染色应用中提供理论参考,采用可见分光光度法研究天然染料紫胶色素在不同温度、pH值、金属离子、氧化剂、还原剂条件下的稳定性。结果表明:紫胶色素颜色随着溶液pH值的改变而变化;在酸性条件下温度对色素的影响较小;氧化剂、还原剂以及碱性条件对稳定性影响较大;Ca2+、Cu2+、Al3+、Fe3+、Fe2+、Zn2+、Sn2+等金属离子可与紫胶色素形成配合物,色素的颜色会发生改变,红外光谱证明紫胶亚铁离子配合物的形成。

Abstract: School of Material Engineering;Soochow University;Suzhou;Jiangsu 215021The stability of lac pigment under different conditions such as temperature,pH value,metal ions,oxidants and reducing agents was investigated by spectrophotometric methods for the purpose of providing a theoretical basis for its utilization in dyeing of textiles.The results showed that the lac pigment color changed with the pH value of solution;and temperature had little influence on it in acidic condition;oxidant,reducing agent,and alkali were disadvantageous to its stability;Ca2+、Cu2+、Al3+、 Fe3+、Fe2+、Zn2+、Sn2+could complex with lac pigment,alter the color of pigment solution;lac-Fe2+complex was confirmed by infrared absorption spectrum.;China

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