Patent TW-546352-B (TW)
Title: Dye mixtures of fiber-reactive azo dyes and process for dyeing hydroxy and/or carboxamido-containing material
Inventor: PEDEMONTE RONALD
IPC: D06P1/38
Filed: 2000-12-05
Granted: 2003-08-11
Abstract: The present invention comprises a dye mixture comprising one or more, such as one, two or three, disazo dyes conforming to the general formula (1), one or more, such as one, two or three, monoazo dyes conforming to the general formula (2), in which R1, R2, R3, R4, Y1, Y2, B, K and M are defined as given in claim 1, a method for its preparation and a process for dyeing hydroxy- and/or carboxamido containing fiber material in which a inventive dye is applied to the material. A dye mixture comprising one or more monoazo dyestuffs corresponding to the general formula (1) and one or more monoazo dyestuffs corresponding to the general formula (2) in a mixing ratio of 80:20% by weight to 20:80% by weight: in which R1 is hydrogen, sulfo, C1-C4 alkyl or alkoxy or halogen R2 has one of the meanings of R1; R3 is C1-C4-alkyl, phenyl, carboxy or C1-C4-carboxyalkyl, R4 has one of the meanings of R3; Y1 is vinyl or is ethyl which is substituted in the beta-position by a substituent which is eliminated by the action of an alkali, forming the vinyl group, Y2 has one of the meanings of Y1; B is a radical of the formulae (3) or (4) or (5); M is hydrogen or an alkali metal, such as lithium, sodium and potassium; in which, R5 has one of the meanings of R1; R6 has one of the meanings of R1; Y3 has one of the meanings of Y1; Y4 has one of the meanings of Y1; m is a number 0, 1, or 2; i is a number 0 or 1; n is a number 0 or 1; whereby, n is 0 only when coupled to the coupling formulae (10) or (11) with the proviso that if n is 0 then D in formula (11) is a structure of the formula (3); M is hydrogen or an alkali metal, such as lithium, sodium and potassium; K is a coupling component represented by formulae (6), (7), (8), (9), (10) or (11); in which R7 has one of the meanings of R1; R8 has one of the meanings of R1; R9 has one of the meanings of R1; R10 is amino, C1-C4 alkyl which is unsubstituted or substituted by carboxy, or is phenyl which is unsubstituted or substituted by carboxy or sulfo; R11 is C1-C6 alkyl which is unsubstituted or substituted by carboxy, or is phenyl which is unsubstituted or substituted by carboxy or sulfo; D is the radical (3), (4), or (5); G is amino or hydroxy; X is hydroxy, chloro, fluoro, morpholino, nicotinamido, 3-carboxypyridino, or a radical of the formulae L; r, s, t, w is the number 0 or 1; p is the number 1 or 2; and L has one of the meanings of formulae (12), (13), or (14); M is hydrogen or an alkali metal, such as lithium, sodium and potassium; in which R12 is hydrogen, C1-C4 alkyl or alkoxy, halogen or sulfo; R13 is hydrogen or C1-C4 alkyl or alkoxy; halogen or sulfo; R14 is hydrogen, C1-C6 alkyl, or phenyl which is unsubstituted or substituted by C1-C4 alkyl or alkoxy, or sulfo; R15 is hydrogen or sulfo; R16 is hydrogen, C1-C6 alkyl, or phenyl which is unsubstituted or substituted, by C1-C4 alkyl or alkoxy, or sulfo; R17 is hydrogen, C1-C6 alkyl, or phenyl which is unsubstituted or which substituted by C1-C4 alkyl or alkoxy, or sulfo; Y5 has one of the meanings of Y1; Y6 has one of the meanings of Y1; n' is the number 0 or 1; q represents C1-C5-alkylene groups, which may be interrupted by a nitrogen, oxygen, or sulfur atom; and Z is a radical of the formulae (12) or (14).