Process for dyeing natural or synthetic polyamide fibre material

Details Process for dyeing natural or synthetic polyamide fibre material Process for dyeing natural or synthetic polyamide fibre material

1997-03-03

1998-08-11

Powers, Fiona T.

Bleaching and dyeing; fluid treatment and chemical modification

Overall dimensional modification or stabilization, e.g.,...

Modification of molecular structure of substrate by chemical...

8566, 811559, 8924, 8917, 534803, 534776, 544208, 544209, 544189, D06P 324, D06P 1642

Patent

active

057922225

ABSTRACT:
Process for dyeing natural or synthetic polyamide fiber materials, which comprises dyeing these fiber materials with at least one anionic acid dye of the formula ##STR1## and treating the fiber material mentioned, during or after the dyeing process, with a colorless fixing agent which contains sulfo or sulfato groups and contains at least two fiber-reactive groups, where

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