Coloration process

Details Coloration process Coloration process

1980-06-05

1981-11-17

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Multiple chemically diverse fibers or fibers with different...

8532, 8549, 8585, 8688, 8917, 8918, D06P 382

Patent

active

043009026

ABSTRACT:
Process for the coloration of cellulose textile materials which comprises applying a dyestuff containing one or more s-triazinyl groups bearing a quaternary nitrogen substituent, or the precursors of such a dyestuff, in the absence of an acid-binding agent and heating the treated textile material to 150.degree. C. or higher to fix the dyestuff to the cellulose.
Improved coloration is often achieved by applying urea or dicyandiamide with the dyestuff.
The process is particularly valuable for the coloration of cellulose in polyester/cellulose unions when a disperse dye may be applied simultaneously with less problems than encountered with conventional alkali fixed reactive dyes.

REFERENCES:
patent: 3791787 (1974-02-01), Yamada et al.
patent: 4264321 (1981-04-01), von der Eltz
Venkataraman's "The Chemistry of Synthetic Dyes" vol. VI (Academic Press, 1972) pp. 147-151.
Beech, W. F., "Fibre-Reactive Dyes" (Logos Press, London, 1970), pp. 132-135.

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