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Novel Green Dyeing Process of Soybean Protein/Poly(vinyl alcohol) Blend Fibre

Research and development

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Nr DOI: 10.5604/12303666.1161757

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Abstract:

A water-soluble chitosan derivative N-[(2-hydroxy-3-trimethylammonium)propyl] chitosan chloride (HTCC) was prepared and used for the modification of soybean protein/poly (vinyl alcohol) blend fiber (SPF). The dying properties of modified SPF with Cibacron FN series reactive dyes were discussed in relation to a salt-free and alkaline/acidic denaturalization dyeing bath (green dyeing process). Results showed that dye exhaustion in the green dyeing process was obviously higher than that in the conventional dyeing process, despite the addition of a large amount salt in the latter case. However, the washing fastness of SPF treated with HTCC in the green dyeing process was inferior to that of untreated SPF in the conventional dyeing process. COD (chemical oxygen demand) values of the green dyeing process effluent were found to be decreased compared with conventional dyeing effluent, which indicated that the green dyeing process could decrease the amount of toxicity of dyeing effluent remarkably.

Tags:

water-soluble chitosan derivative, soybean protein/poly (vinyl alcohol) blend fiber, reactive dyes, salt-free dyeing, denaturalization bath.

Citation:

Lv J, Zhou Q, Gao D, Liu G, Wang C. Novel Green Dyeing Process of Soybean Protein/Poly(vinyl alcohol) Blend Fibre. FIBRES & TEXTILES in Eastern Europe 2015; 23, 5(113): 55-59. DOI: 10.5604/12303666.1161757

Published in issue no 5 (113) / 2015, pages 55–59.

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