Ciba Specialty Chemicals Corporation

Ciba-geigy Corporation

Francine Casi

Jean-Marie Adam

Jean-Pierre Bacher

Rudolf Hurter

Peter Sutter

A process for dyeing or printing natural or synthetic polyamide fiber material by the trichromatic technique, which comprises using at least one blue-dyeing dye of formula ##STR1## together with at least one red-dyeing dye of formula ##STR2## together with at least one yellow- or orange-dyeing dye of formula ##STR3##

Process for trichromatic dyeing or printing

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

Process for dyeing natural or synthetic polyamide fiber materials

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

Process for dyeing natural or synthetic polyamide fibre materials

The invention relates to dye mixtures consisting of

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Eschentzwiller, France

Francine Casi