茜素硝化对涤纶织物染色性能的影响

纺织学报 ›› 2012, Vol. 33 ›› Issue (10): 103-106.

茜素硝化对涤纶织物染色性能的影响

戚益¹,安冬¹,徐倩倩¹,钟毅^1,2,杜鹃^1,2,罗艳^1,2

1. 东华大学化学化工与生物工程学院
2. 东华大学生态纺织教育部重点实验室

收稿日期:2011-09-16 修回日期:2012-05-21 出版日期:2012-10-15 发布日期:2012-10-17
通讯作者: 罗艳 E-mail:luoyan@dhu.edu.cn

Influence of nitrated alizarin on dyeing properties of polyester fabrics

Received:2011-09-16 Revised:2012-05-21 Online:2012-10-15 Published:2012-10-17
Contact: Yan LUO E-mail:luoyan@dhu.edu.cn

摘要/Abstract

摘要： 以典型蒽醌结构的生物质茜素为母体，采用不同改性方法制取3-硝基茜素，通过FT-IR、HPLC-MS及1H NMR等分析测试手段对改性结构进行表征；将改性后的茜素用于超细涤纶织物染色，测定被染织物的匀染性、耐皂洗色牢度与耐摩擦色牢度，并与未改性茜素的染色样品相关性能进行对比。结果表明：茜素在40 ℃与冰乙酸、浓硝酸反应8 h制得的3-硝基茜素纯度可高达97%；未改性茜素上染涤纶时需借助分散剂和渗透剂等助剂才可提高其染色性能，而改性茜素无需助剂即可使毛沾、湿摩、匀染性各提高半级，既降低了染色成本，又减少了染色废水的污染程度。

关键词: 茜素, 3-硝茎茜素, 匀染性, 色牢度, 无助剂染色

Abstract: The suitable nitration approach for biomass alizarin was selected based on different reaction conditions. And the structure of modified alizarin was characterized by FT-IR, HPLC-MS and 1H NMR. The nitrated alizarin was then used to dye superfine polyester fabrics. The levelness, color fastness of the dyed samples with traditional alizarin and 3-nitroalizarin were investigated respectively. The results show that the modified alizarin, i.e. 3-nitroalizarin, can be got by reacting with concentrated nitric acid in glacial acetic acid at 40 ℃ for 8 h. The average purity of products is 97%. Compared with the color fastnesses of dyed samples with traditional alizarin, the better grade of those of dyed samples can be obtained by dyeing with modified alizarin under auxiliary-free condition. The soaping fastnesses, wet rubbing fastnesses and levelness are also raised by half grade with modified alizarin. It indicated that the significant reduction in both dyeing cost and wastewater pollution can be achieved if using modified alizarin.

Key words: alizarin, 3-nitroalizarin, levelness, color fastness, auxiliary-free dyeing

中图分类号:

TS 190.2

戚益安冬徐倩倩钟毅杜鹃罗艳. 茜素硝化对涤纶织物染色性能的影响[J]. 纺织学报, 2012, 33(10): 103-106.

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