Abstract:
A process for the manufacture of vat dyes of the formula ##STR1## wherein each of A.sub.1 and A.sub.2 independently is a vattable radical, which comprises reacting compounds of the formula ##STR2## wherein X is halogen and A.sub.1 and A.sub.2 are as defined for formula (1), in a basic medium with hydrazine compounds.
Abstract:
A process for the production of 1-anthraquinonyl hydrazines of the formula ##STR1## wherein X is hydrogen or --NH--NH.sub.2, which comprises reacting 1-nitroanthraquinones of the formula ##STR2## wherein Z is hydrogen or nitro, in aprotic dipolar solvents, with hydrazine or hydrazine hydrate, at normal or slightly elevated temperature, to give 1-anthraquinonyl hydrazines of the formula (1).
Abstract:
Dye mixtures, comprising least one yellow dye of the formula (1), at least one yellow dye of the formula (2), at least one red dye of the formula (3), at least one blue dye of the formula (4), wherein the radicals have the definitions given in the claims, are suitable especially for the trichromatic dyeing or printing of cellulosic fibre materials and yield dyeings or prints having good reproducibility and good all-round fastness properties.
Abstract:
Reactive dyes of the formula (1) in which Q1 is hydrogen, halogen or a radical of the formula R1, R2 and R3 independently of one another are hydrogen or C1-C4alkyl which is unsubstituted or substituted by hydroxyl, sulfo, carboxyl or sulfato, and R1 in formula (1) and R1 in formula (2a) have identical or different meanings and R2 in formula (1) and R2 in formula (2a) have identical or different meanings, (R4)0-1 and (R5)0-1 independently of one another are 0 or 1 identical or different substituents from the group consisting of C1-C4alkyl, C1-C4alkoxy, halogen and sulfo, A is hydrogen or C1-C4alkyl which is unsubstituted or substituted by hydroxyl, sulfo, carboxyl or sulfato, phenyl which is unsubstituted or substituted by C1-C4alkyl, C1-C4alkoxy, C2-C4alkanoylamino, hydroxyl, carboxyl, carbamoyl, sulfo or halogen, phenyl-C1-C2alkylene which is unsubstituted or substituted in the phenyl ring by C1-C4alkyl, C1-C4alkoxy, C2-C4alkanoylamino, hydroxyl, carboxyl, sulfo, carbamoyl or halogen, or C5-C7cycloalkyl which is unsubstituted or substituted by C1-C4alkyl, B is a C2-C12alkylene radical which can be interrupted by 1, 2 or 3 members from the group consisting of —NH—, —N(CH3)— or —O— and is unsubstituted or substituted by hydroxyl, sulfo, sulfato, cyano or carboxyl, a C5-C7cycloalkylene radical or C1-C2alkylene-C5-C7cycloalkylene radical which are unsubstituted or substituted in the cycloalkylring by C1-C4alkyl, C1-C2alkylenephenylene radical or phenylene radical which are unsubstituted or substituted in the phenyl ring by C1-C4alkyl, C1-C4alkoxy, C2-C4alkanoylamino, sulfo, halogen or carboxyl, V1 and V2 independently of one another are halogen, T is a radical of the formula —CO—(CH2)mSO2—Y (3a), —CO—CH(Hal)—CH2—Hal (3b) or —CO—C(Hal)=CH2 (3c), Hal is halogen, X is hydroxyl or Y, Y is vinyl or a radical —CH2—CH2—U and U is a group which can be split off under alkaline conditions, and m is the number 2, 3 or 4. are suitable for dyeing widely varying fibre materials, in particular cellulosic fibre materials, and produce dyeings with good allround properties.
Abstract:
Dye mixtures comprising at least one dye of formula together with at least one dye of formula wherein the radicals indicated in the formulae are defined in accordance with the claims, are suitable for dyeing or printing cellulosic fibre materials with good build-up behaviour and yield dyeings of a deep shade having good fastness properties.
Abstract:
Dye mixtures comprising at least one dye of formula together with at least one dye of formula wherein the radicals indicated in the formulae are defined in accordance with the claims, are suitable for dyeing or printing cellulosic fibre materials with good build-up behaviour and yield dyeings of a deep shade having good fastness properties.
Abstract:
Reactive dyes containing at least one structural unit of formula (I), wherein Y is vinyl or a radical —CH2—CH2—U and U is a group removable under alkaline conditions, are suitable for dyeing cellulosic or amide-group-containing fiber materials.
Abstract:
The present invention relates to an azo dye of formula I, II or III: (formula I, II or III); wherein R1 and R2 are each independently of the other one or more divalent groups selected from alkylene, arylene, aralkylene and cycloalkylene, which may be interrupted by —O—, —S—, —NH—, —NR8—, —COO—, —CONH— or —CONR9—, wherein R8 and R9 are alkyl or aryl, X is —O— or —NH—, R3 is —CN or —CONH2, R4 is methyl or trifluoromethyl and R5, R6, R7 and R8 are each independently of the others hydrogen, halogen or —CN, to a process for the preparation thereof and to the use thereof in a method of producing mass-colored plastics or polymeric color particles.
Abstract:
The present invention relates to pyrifone azo dyes of formula (1), wherein A is the radical of a diazo component of the benzene, naphthalene, diphenyl, azobenzene, thiophene, benzothiazole, benzoisothiazole, thiadiazole, indazole, benzotriazole, pyrazole, anthraquinone, naphttholic acid imide, chromone, phthalimide or diphenylene oxide series, R1 is hydrogen, unsubstituted or hydroxyl- or phenyl-substituted C1-C6alkyl, it being possible for the alkyl chain to be interrupted from C3 upwards by one or more oxygen atoms, or has the meanings of R2, R2 is a radical of formulae (2), (3), (4), (5), (6), or (7), wherein B is a bridging member, R4 is alkyl or aryl, R5 and R6 are each independently of the other alkyl, aryl or heteroaryl and A is as defined for formula (1), or R1 and R2 toghether with the nitrogen atom in NR1R2 form a heterocyclic ring, Y is cyano, —CONH2 or CH2SO3H, and n is an integer from 2 to 6, to a process for their preparation and to their use in the production coloured plastics or polymeric color particles.
Abstract:
Compounds of the formula in which the variables are as defined in the claims, which are suitable as fiber-reactive dyes for dyeing widely varying fiber materials, are described.