Abstract

The paper investigates into the dyeing process of cellulose-based fibres with reactive dyes using quaternary ammonium salt as an intensifier. The paper considers the wide usage of сellulose fibres in the textile industry and highlights the trend towards obtaining cellulose fibres from flax, Ramie, hemp. The weak points of reactive dyes application have been analysed and the methods of their elimination have been suggested. Based on the results of their previous studies, the authors claim that quaternary ammonium salts allow reducing the proportion of hydrolysed form of dye. The novelty of this work is in studying the intensifying effect of quaternary ammonium salts in the process of dyeing not only cotton, but also flax, viscose, Ramie, hemp fibres.

The study of reactive dyes sorption by microcrystalline cellulose in the presence of ammonium salts allowed to determine the most effective intensifier for dyeing cellulose fibres. The concentration of the reactive dye on cellulose with benzyldimethylhexadecylammonium chloride increases by 60-70%. This results in the increase of colour strength values of cellulose fibres by 5-6 times. All the examined samples showed high resistance to washing and perspiration. The obtained results are of practical significance and can be used in textile materials processing.

Keywords:Sorption; Benzyldimethylhexadecylammonium chloride; Colour parameters; Fastness properties; Textile industry; Spectrometry