Anthraquinone dyes, process for their preparation and the use thereof
AssigneeCiba-Geigy Corporation
InventorsUrs Lehmann, Marcel Frick
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Abstract
Anthraquinone dyes of formula ##STR1## wherein R.sub.2 and R.sub.2 are each independently of the other hydrogen or C.sub.1 -C.sub.4 alkyl, X is a C.sub.2 -C.sub.22 alkylene radical which is interrupted by 1, 2 or 3 members selected from the group consisting of --NH--, --N(CH.sub.3)-- or --O-- and which is unsubstituted or substituted by hydroxyl, sulfo or sulfato; or a C.sub.1 -C.sub.4 alkylene-phenylene-C.sub.1 -C.sub.4 alkylene radical which is unsubstituted or substituted in the phenylene ring by C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.2 -C.sub.4 alkanoylamino, sulfo, halogen or carboxy, and Y is a radical of formula ##STR2##
Claims7
An anthraquinone dye of formula ##STR15## wherein R.sub.1 and R.sub.2 are each independently of the other hydrogen or C.sub.1 -C.sub.4 alkyl,
- X is a C.sub.2 -C.sub.22 alkylene radical which is interrupted by 1, 2 or 3 members selected from the group consisting of --NH--, --N(CH.sub.3)-- or --O-- and which is unsubstituted or substituted by hydroxyl, sulfo or sulfato;
- or
- a C.sub.1 -C.sub.4 alkylene-phenylene-C.sub.1 -C.sub.4 alkylene radical which is unsubstituted or substituted in the phenylene ring by C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.2 -C.sub.4 alkanoylamino, sulfo, halogen or carboxy, and
- Y is a radical of formula ##STR16##
Dependencies are inferred from the claim text.