INVESTIGATIONS ON THE DYEING ABILITY OF SOME REACTIVE TRIAZINE AZO DYES CONTAINING TETRAMETHYLPIPERIDINE FRAGMENT
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2017-01-01
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Abstract
Three monofunctional reactive triazine dyes, containing tetramethylpiperidine fragment and an identical chromophore, but different reactive group (chlorotriazine or allylamine/allyloxy), were used for dyeing cotton and wool with the application of different methods of dyeing: exhaust, pad-batch and printing. The degree of exhaustion and fixation, as well as the fastness properties of the dyed samples in respect to washing, acidic and alkaline perspiration, dry and wet rubbing and light fastness were assessed. The influence of the dye bath temperature on the percentage of exhaustion and color intensity was determined. It was found that the monochlorotriazine reactive dye may be used for dyeing cellulosic textile materials, while the most suitable were the methods of exhaust at 80°C, pad-dry, pad-dry-steam, cold pad-batch and printing. The dyes containing an allylic group were found applicable to wool dyeing with the application of the method of exhaust at 80°C. The investigated dyed samples showеd good light fastness properties.