Process for trichromatic dyeing or printing

Details Process for trichromatic dyeing or printing Process for trichromatic dyeing or printing

C - Chemistry, Metallurgy

09

B

C09B 31/22 (2006.01) C09B 67/22 (2006.01) D06P 1/06 (2006.01) D06P 3/04 (2006.01) D06P 3/06 (2006.01) D06P 3/10 (2006.01) D06P 3/14 (2006.01) D06P 3/24 (2006.01)

Patent

CA 2205672

A process for dyeing or printing natural or synthetic polyamide fibre material by the trichromatic technique, which comprises using at least one blue-dyeing dye of formula (1) or Image Image (2) together with at least one red-dyeing dye of formula (3) and Image (3) and together with at least one yellow- or orange-dyeing dye of formula (4) or Image Image (5), the substituents having the meanings claimed in the claims. The process of this invention is suitable for dyeing natural or synthetic polyamide fibre materials from an aqueous liquor or for printing with printing pastes.

Un procédé pour colorer, par teinture ou impression, une matière de fibres textiles de polyamide naturelles ou synthétiques par la technique de trichromie, qui comprend l'utilisation d'au moins un colorant bleu de formule (1) ou Image Image (2) combiné à au moins un colorant rouge de formule (3) et Image (3) et à au moins un colorant jaune ou orangé de formule (4) ou Image Image (5), les substituants ayant les significations indiquées dans les revendications. Le procédé de la présente invention convient pour colorer des fibres textiles de polyamide naturelles ou synthétiques par teinture, à partir de solutions aqueuses, ou par impression, avec des pâtes d'impression.

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