Patent ID: 6165231
Filing Date: 2000-12-26
Classification: C09B,Y10S

Abstract:
A dye mixture comprising one or more dyes of the general formula (1) and one or more dyes of the general formula (2) in a molar ratio of the dyes (1) and (2) of 70:30 to 30:70 where:M is hydrogen, an alkali metal or the equivalent of an alkaline earth metal;R.sup.1 is hydrogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, sulfo or carboxy;R.sup.2 is hydrogen, alkyl of 1 to 4 carbon atoms or alkoxy of 1 to 4 carbon atoms;G is a radical of benzene or naphthalene;R.sup.3 when G is a radical of benzene is hydrogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, halogen, sulfo or carboxy, and is hydrogen, methyl, sulfo or carboxy when G is a radical of naphthalene;R.sup.4 when G is a radical of benzene is hydrogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms or sulfo and is hydrogen or sulfo when G is a radical of naphthalene;R.sup.A is hydrogen or sulfo;D is a radical of benzene or naphthalene;R.sup.5 when D is a radical of benzene is hydrogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, halogen, sulfo or carboxy and is hydrogen, methyl, sulfo or carboxy, when D is a radical of naphthalene;R.sup.6 when D is a radical of benzene is hydrogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms or sulfo and is hydrogen or sulfo when D is a radical of naphthalene;R.sup.B is hydrogen or sulfo;R.sup.7 is hydrogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, sulfo or carboxy;R.sup.8 is hydrogen, alkyl of 1 to 4 carbon atoms or alkoxy of 1 to 4 carbon atoms;R is hydrogen or alkyl of 1 to 4 carbon atoms;Y.sup.1 is vinyl or is ethyl which is substituted in the .beta.-position by an alkali-eliminable substituent;Y.sup.2 has any of the meanings of Y.sup.1.