MATEC Web Conf.
Volume 108, 20172017 International Conference on Mechanical, Aeronautical and Automotive Engineering (ICMAA 2017)
|Number of page(s)||4|
|Section||Textile Industry and Technology|
|Published online||31 May 2017|
Electrolyte influence on sorption behaviours of Direct Blue 71 dye on ramie fibre
1 School of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430073, China
2 Hubei Provincial Engineering Laboratory for Clean Production and High Value Utilization of Bio-based Textile Materials, Wuhan Textile University, Wuhan 430073, China
3 Zhejiang Institute of Modern Textile Industry, Shaoxing 312000, China
4 Research institute of flexible materials, School of Textiles & Design, Heriot-Watt University, Galashiels TD1 3HF, UK
5 Engineering Research Centre for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan Textile University, Wuhan 430073, China
Ramie loose fibre was dyed using Direct Blue 71 dye at 70, 80, 90 and 100°C without and with NaCl electrolyte in order to investigate the distinction of dye sorption behaviours. The results show that the dye exhaustion increases with addition of NaCl and shortens the equilibrium dyeing time. The dye adsorption process of dyeing without and with NaCl followed pseudo second-order kinetics, but the rate constant of sorption is larger for the latter compared to the former.
© The Authors, published by EDP Sciences, 2017
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