| abstract |
A dye composition comprising at least one turquoise blue monoazo dye of the following formula (I):n wherein each of R 1 and R 2 which are independent of each other, is a C 1 -Cs alkyl group, an allyl group or a C 1 -C 4 alkoxy C 2 -C 3 alkyl group, R 3 is a C 1 -C 5 alkyl group, a C 1 -C 4 alkoxy C 2 -C 3 alkyl group or a phenyl group, R 4 is a hydrogen atom, a halogen atom or a methyl group, and Z is an oxygen atom or a sulfur atom, and at least one yellow monoazo dye or at least one blue anthraquinone dye or at least one blue monoazo dye. |