Patent ID: 6090163
Filing Date: 2000-07-18
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 dye or dyes (1) and the dye or dyes (2) of 90:10 to 10:90 ##STR10## where: M is hydrogen, an alkali metal or the equivalent of an alkaline earth metal;R.sup.1 is hydrogen or sulfo;R.sup.2 is hydrogen or sulfo;R.sup.3 is hydrogen or sulfo;X.sup.1 is chlorine, fluorine, hydroxy, alkoxy of 1 to 4 carbon atoms, phenyl, which may be substituted, or is optionally substituted N-morpholino or N-pyrimidino or is a group of the formula --NM-CN where M is as defined above or is an amino group of the below-defined formula --NR.sup.4 R.sup.5 ;X.sup.2 is chlorine, fluorine, hydroxy, alkoxy of 1 to 4 carbon atoms, phenyl, which may be substituted, or is optionally substituted N-morpholino or N-pyrimidino or is a group of the formula --NM-CN where M is as defined above or is an amino group of the below-defined formula --NR.sup.4 R.sup.5 ;Y.sup.1 is vinyl or is ethyl which is substituted in the .beta.-position by an alkaline-eliminable substituent;Y.sup.2 has one of the meanings of Y.sup.1 ;Y.sup.3 has one of the meanings of Y.sup.1 ;R.sup.4 is hydrogen, alkyl of 1 to 4 carbon atoms, phenyl, monosulfophenyl, disulfophenyl, naphthyl, monosulfonaphthyl or disulfonaphthyl;R.sup.5 is hydrogen, alkyl of 1 to 6 carbon atoms, which may be substituted by 1 or 2 substituents from the group consisting of sulfo, carboxy, hydroxy, alkoxy of 1 to 4 carbon atoms and amino, or is alkyl of 2 to 6 carbon atoms which may be interrupted by a group --O-- or --NH-- and is substituted by a group of the formula --SO.sub.2 --Y.sup.4 where Y.sup.4 has a meaning of Y.sup.1, or is phenyl which may be substituted by 1 or 2 substituents selected from the group consisting of sulfo, carboxy, hydroxy, alkoxy of 1 to 4 carbon atoms, alkyl of 1 to 4 carbon atoms and acetylamino, or is naphthyl, monosulfonaphthyl or disulfonaphthyl, orR.sup.4 and R.sup.5 are together an alkylene of 4 to 6 carbon atoms and combine with the nitrogen atom to form the radical of an aliphatic heterocycle, which alkylene may be interrupted by 1 or 2 hetero groups selected from the group consisting of the formulae --O--, --NH--, --N(CH.sub.3)-- and --NH--CO--;the groups Y.sup.1 --SO.sub.2 --, --SO.sub.2 --Y.sup.2 and Y.sup.3 --SO.sub.2 -- are attached to the benzene nucleus meta or para to the azo group.