Patent ID: 6358287
Filing Date: 2002-03-19
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) where:R1 is hydrogen or chlorine; R2 is hydrogen or chlorine; Z1 is OM or vinyl or is ethyl that is substituted in the &bgr;-position by an alkali-eliminable substituent; Z2 is OM, hydroxyethyl, vinyl or is ethyl that is substituted in the &bgr;-position by an alkali-eliminable substituent; Z3 is vinyl or is ethyl that is substituted in the &bgr;-position by an alkali-eliminable substituent; Z4 is hydroxyethyl, vinyl or is ethyl that is substituted in the &bgr;-position by an alkali-eliminable substituent; Y is a straight-chain or branched alkylene radical of 2 to 6 carbon atoms which may be interrupted by 1 or 2 hetero groups from the group consisting of â€”NHâ€”, â€”Oâ€” and â€”SO2â€”; X is W or â€”NR*COâ€”Vâ€”COOM; when Z1 and Z2=OM then X then X has the meaning of formula (1a) â€ƒwhere Hal is chlorine or fluorine; r is 1 or 2; RAis hydrogen, alkyl of 1 to 4 carbon atoms, hyroxyethyl or sulfoethyl; RB is hydrogen, methoxy, ethoxy, methyl or ethyl; W is sulfato, sulfo or carboxyl; R* is hydrogen or an alkyl group of 1 to 4 carbon atoms; V is a direct bond or a straightâ€”chain or branded alkylene group of 1 to 8 carbon atoms; R3 is hydrogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, sulfo, carboxyl; R4 is hydrogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, sulfo, carboxyl; B is a direct bond or alkyl of 1 to 3 carbon atoms; M is hydrogen, an alkali metal, or the equivalent of of an alkaline earth metal.