Investigations on the migration properties of acid dyes in the dyeing of polyamide microfibre

IF 2.6 4区工程技术 Q3 CHEMISTRY, APPLIED

Coloration Technology Pub Date : 2025-06-24 DOI:10.1111/cote.70005

Xun Xu, Ren‐Cheng Tang

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引用次数: 3

Abstract

Abstract Retarding the uptake rate of dyes and enhancing the migration ability of dyes are two basic measures to be taken to improve the dyeing levelness of polyamide microfibre. In this work, the migration properties of acid dyes during the dyeing of polyamide microfibre were discussed. The effects of the category and molecular mass of dyes, and the conditions of dyeing (pH, temperature, dye concentration, and auxiliaries) on dye migration were evaluated, and the ability of dye migration on polyamide microfibre, wool, and silk was compared. Acid dyes had lower migration ability on polyamide microfibre than on wool and silk. The migration ability of different varieties of dyes displayed great differences, and decreased in the following order: acid levelling dyes > acid half‐milling/milling dyes > 1:2 metal complex dyes. The migration percentage of acid dyes increased with increasing pH, temperature and dye concentration. Various types of surfactants displayed different degrees of ability in enhancing the migration of acid half‐milling/milling dyes. Fatty amine polyoxyethylene ether (weakly cationic) had the strongest promoting effect on the migration of dyes, followed by sodium alcohol ether sulphate (anionic) and fatty alcohol polyoxyethylene ether (nonionic), while amphoteric surfactants displayed a minor promoting effect. Notably, in the migration test, the migration percentage of dyes was significantly linearly correlated with the extent of dye desorption from fibres.

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酸性染料在聚酰胺微纤维染色中的迁移性能研究

摘要延缓染料的吸收速度和增强染料的迁移能力是提高聚酰胺微纤维染色水平的两项基本措施。本文讨论了酸性染料在聚酰胺微纤维染色过程中的迁移特性。考察了染料的种类、分子质量、染色条件（pH、温度、染料浓度、助剂）对染料迁移的影响，比较了染料在聚酰胺微纤维、羊毛和真丝上的迁移能力。酸性染料对聚酰胺微纤维的迁移能力低于对羊毛和丝绸的迁移能力。不同品种染料的迁移能力差异较大，其迁移能力依次为：酸匀染染料>；酸半磨/磨染染料>； 1:2金属络合染料。酸性染料的迁移率随pH、温度和染料浓度的增加而增加。不同类型的表面活性剂对酸性半磨/磨染料的迁移有不同程度的促进作用。脂胺聚氧乙烯醚（弱阳离子）对染料迁移的促进作用最强，其次是醇醚硫酸钠（阴离子）和脂肪醇聚氧乙烯醚（非离子），两性表面活性剂对染料迁移的促进作用较小。值得注意的是，在迁移测试中，染料的迁移百分比与染料从纤维中脱附的程度显着线性相关。

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.

文献相关原料

原料信息

原料厂家

Fatty alcohol polyoxyethylene ether (AEO-25)
9064-14-6

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