植物染料分子状态与其上染关系

纺织学报 ›› 2013, Vol. 34 ›› Issue (9): 84-0.

植物染料分子状态与其上染关系

刘祥霞杜文琴吴翠

五邑大学纺织服装学院

收稿日期:2012-09-05 修回日期:2013-05-14 出版日期:2013-09-15 发布日期:2013-09-12
基金资助:
广东省自然科学基金资助项目

Vegetable dyes: molecular status vs dyeing ability

Received:2012-09-05 Revised:2013-05-14 Online:2013-09-15 Published:2013-09-12

摘要/Abstract

摘要： 针对植物染料上染率低的问题，选择姜黄、茜草和大黄作为研究对象，采用膜分离技术分离植物染料的各种成分，研究植物染料在溶液中的分子状态以及其对真丝的上染率,染色深度和染色牢度的关系。结果表明：色素的分子状态与其上染率有密切的关系，分子量大于10000的色素与杂质的结合体上染率只有10%左右；当分子量小于5000时，上染率可达到30%以上；当分子量小于1000时，上染率提高到50%以上。生物酶可破坏色素和杂质的结合，用淀粉酶与果胶酶复合处理色素提取液，分子量在5000以下的色素溶出率可提高30%以上。

关键词: 植物染料, 膜分离, 酶处理, 上染率

Abstract: Aiming at the low dye uptake of plant pigment, multiple compositions of tunmeric, rhubarb and gamene were selected to be separated by membrane technology. The relation of molecular status of plant pigment and its dye uptake, colour depth and fastness on silk were studied. The result shows that there is close relationship between molecular status of plant pigment and dye uptake. The rate of dye uptake is only around 10% when the molecular weight of combination of pigment and impurity is more than 10000, while the rate of dye uptake can be up to 30% and 50% when the molecular weight of conbination of pigment and impurity is less than 5000 and 3000. Enzymes can break the combination of plant pigment and impurity. the dissolution rate of plant pigment of which the molecular weight of conbination of pigment and impurity is less than 5000 can increase up to 30% when the combination of amylase and pectinase is applied to treat the extracting solution of plant pigment.

Key words: vegetable dye, membrane separation, enzymatic treatment, dye uptake

刘祥霞杜文琴吴翠. 植物染料分子状态与其上染关系[J]. 纺织学报, 2013, 34(9): 84-0.

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