Effect of PEG-400 on dyeing properties of cotton fabric in non-aqueous medium system

IF 2 4区工程技术 Q3 CHEMISTRY, APPLIED

Coloration Technology Pub Date : 2024-11-25 DOI:10.1111/cote.12801

Hui Chen, Hongjuan Zhang, Zhengkai Wang, Jing Guo, Qun Yang, Liujun Pei, Shuaitong Liang, Kaili Jin, Jiping Wang

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引用次数: 0

Abstract

Traditional reactive dyeing has the technical problems of high water consumption and high pollution. In this article, the effect of polyethylene glycol 400 (PEG-400) on the dyeing properties of cotton fabrics with high concentration reactive dyes in non-aqueous medium was studied. Initially, the effects of PEG-400 on colour strength (K/S) and colour fastness of dyed fabric with reactive dye are systematically discussed. In addition, the effect of PEG-400 on the hydrolysis properties of reactive dyes was analysed by high-performance liquid chromatography (HPLC). At the same time, the molecular interaction force between the dye and PEG-400 was analysed by ultraviolet-visible (UV-visible) spectroscopy. The results showed that when PEG-400 concentration was 3.0 g/L, K/S value of dyed fabric (5.0%, on weight of fabric, owf) was increased by 33.5%, and is much higher than dyed fabrics without PEG-400. HPLC and UV-visible analysis showed that the addition of PEG-400 effectively reduced the hydrolysis rate of dye II containing two vinyl sulfone reactive groups, which was converted from C.I. Reactive Black 5 containing contains diethylsulfone sulphate group. Its hydrolysis rate was reduced by 20.9%. PEG-400 also decreased the aggregation degree of high concentration reactive dye, and increased the solubility of reactive dye. This method has certain universality. Therefore, using PEG-400 as an additive is an effective way to improve the dye uptake of reactive dyes in non-aqueous medium dyeing system and realise cleaner production.

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PEG-400对非水介质体系棉织物染色性能的影响

传统活性染色存在高耗水量、高污染的技术问题。本文研究了聚乙二醇400 （PEG-400）对高浓度活性染料在非水介质中对棉织物染色性能的影响。首先系统地讨论了PEG-400对活性染料染色织物的色强（K/S）和色牢度的影响。此外，采用高效液相色谱法分析了PEG-400对活性染料水解性能的影响。同时，用紫外-可见光谱分析了染料与PEG-400的分子相互作用力。结果表明，当PEG-400浓度为3.0 g/L时，染色织物的K/S值（占织物重量的5.0%）提高了33.5%，远高于未添加PEG-400的染色织物。HPLC和uv -可见分析表明，PEG-400的加入有效降低了含有两个乙烯基砜反应基团的染料II的水解率，该染料II是由含有硫酸二乙基砜基团的C.I.反应黑5转化而来。水解率降低20.9%。PEG-400还降低了高浓度活性染料的聚集度，提高了活性染料的溶解度。该方法具有一定的通用性。因此，使用PEG-400作为添加剂是提高活性染料在非水介质染色体系中的吸收率，实现清洁生产的有效途径。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Coloration Technology 工程技术-材料科学：纺织

CiteScore

3.60

自引率

11.10%

发文量

审稿时长

4 months

期刊介绍： The primary mission of Coloration Technology is to promote innovation and fundamental understanding in the science and technology of coloured materials by providing a medium for communication of peer-reviewed research papers of the highest quality. It is internationally recognised as a vehicle for the publication of theoretical and technological papers on the subjects allied to all aspects of coloration. Regular sections in the journal include reviews, original research and reports, feature articles, short communications and book reviews.