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Published in: Cellulose 18/2023

13-11-2023 | Original Research

Effect of swelling on dyeing of cotton fabric in supercritical CO2 with ionic liquid domain reverse micelles

Authors: Yingchong Ma, Huanda Zheng, Tao Cai, Fuer Zheng, Xuechao Xu, Laijiu Zheng

Published in: Cellulose | Issue 18/2023

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Abstract

In this paper, the swelling effect of ionic liquid reverse micelle system on cotton fabric in supercritical CO2, and the influence of swelling on the dyeing of cotton fabric were studied. The results indicate that the ionic liquid reverse micelle system can cause swelling of cotton fabric. In the process of alkali free dyeing, swelling has a significant effect on the dyeing properties of cotton. With the extension of reaction time, both the crystallinity and XRD diffraction intensity of cotton fabric decreased, and the dyeing depth (K/S value) of cotton fabric increased. The temperature and molar ratio of ionic liquid to surfactant have a significant impact on the swelling of cotton fabrics. At higher temperature (90 °C), the crystallinity index of cellulose in cotton fabric significantly decreases, which affected the K/S values of dyed cotton fabric. Adding a certain amount of DMSO can promote the swelling of cotton fiber, greatly reduce crystallinity, and improve the dyeing performance of cotton fabric.

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Literature
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go back to reference Shen HX, Wang WQ, Gao HC (1994) Formation of reversed micelles and W/O microemulsions in extraction systems. Uranium Mining and Metallurgy 13(3):165–171 Shen HX, Wang WQ, Gao HC (1994) Formation of reversed micelles and W/O microemulsions in extraction systems. Uranium Mining and Metallurgy 13(3):165–171
Metadata
Title
Effect of swelling on dyeing of cotton fabric in supercritical CO2 with ionic liquid domain reverse micelles
Authors
Yingchong Ma
Huanda Zheng
Tao Cai
Fuer Zheng
Xuechao Xu
Laijiu Zheng
Publication date
13-11-2023
Publisher
Springer Netherlands
Published in
Cellulose / Issue 18/2023
Print ISSN: 0969-0239
Electronic ISSN: 1572-882X
DOI
https://doi.org/10.1007/s10570-023-05565-2

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