Abstract: This invention relates to monoazo, disazo and trisazo colorants of the formula (I) where M represents two hydrogen atoms or one metal ion selected from the group consisting of Cu, Co, Ni, Mn, Zn and Al; A is the radical of a substituted naphthyl or pyrazolyl radical.

Abstract: A lightfast colorant and a lightfast ink composition include a lightfast colorant that is derived by covalently binding a benzophenone derivative and a conventional colorant and that imparts effective lightfastness and long-term storage stability to an ink composition that is prepared with the same.

Abstract: Disclosed are compositions comprising one or more compounds characterized by the formula: ##STR1## wherein Ar is an aromatic moiety having at least one substituent which is an acid group or salt thereof; X is a hydrocarbyl, carboxylic acid ester, sulfonic acid ester, carboxylic acid amide or sulfonic acid amide group; each Y is independently a hydrocarbyl, halogen, hydrocarbyloxy, carboxylic acid ester, sulfonic acid ester, carboxylic acid amide, imidazolone, sulfonic acid amide or nitro group; and a is 1, 2 or 3. Also disclosed is a process for preparing azo dyes which comprises coupling (i) at least one diazonium component of one or more aromatic amines containing at least one sulfonic acid group or carboxylic acid group, or salts thereof; with (ii) at least one coupling component represented by the formula: ##STR2## wherein X, Y and a are as defined above. The dye compositions prepared by this process and the azo pigments derived from such dyes are also disclosed.

Abstract: A process for the preparation of the sulphone of the formula ##STR1## consists in reductive cleavage of azo/azoxy dyestuffs of the formula ##STR2## where D is a radical of a diazo component from the benzene or naphthalene series.The invention also relates to the azo/azoxy dyestuffs mentioned.

Abstract: The present invention relates to azo dyes of the formula ##STR1## wherein X is an aryloxy radical or an unsubstituted or substituted C.sub.1 -C.sub.12 alkyl radical, a cycloalkyl radical or an aryl radical or a group of the formula ##STR2## wherein R.sub.1 is hydrogen, unsubstituted or substituted lower alkyl, cycloalkyl or aryl, and R.sub.2 is hydrogen or unsubstituted or substituted lower alkyl, or wherein R.sub.1 and R.sub.2, together with the nitrogen atom to which they are attached, form a 5- or 6-membered heterocyclic ring which may contain a further hetero-atom, Y is halogen, low molecular alkyl or low molecular alkoxy, and K is the radical of a coupling component of the benzene or naphthalene series or of the heterocyclic series.These dyes yield dyeings of good light- and wetfastness on polyamide material.

Abstract: Monoazo dyes of the formula ##STR1## wherein R.sub.1 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, halogen, C.sub.2 -C.sub.4 alkanoylamino or is an unsubstituted or substituted arylsulfonyl, aryloxy or arylcarbonyl radical; R.sub.2 is hydrogen, halogen, an unsubstituted or substituted alkyl, aryloxy or aryloxysulfonyl radical or a radical of the formula ##STR2## R.sub.3 is an unsubstituted or substituted alkyl or aryl radical; R.sub.4 is hydrogen or alkyl; and R.sub.5 and R.sub.6 are each independently hydrogen or an unsubstituted or substituted alkyl, cycloalkyl or aryl radical, with the proviso that R.sub.1 may not be hydrogen or halogen if R.sub.2 is an unsubstituted or substituted aryloxysulfonyl radical, a radical of the formula ##STR3## or the trifluoromethyl group, and the sulfo group is attached to the benzene ring of the indole radical, produce dyeings of good light- and wetfastness properties on polyamide material.

Abstract: Monoazo dyes of the formula ##STR1## wherein R.sub.1 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, halogen, C.sub.2 -C.sub.4 alkanoylamino or is an unsubstituted or substituted arylsulfonyl, aryloxy or arylcarbonyl radical; R.sub.2 is hydrogen, halogen, an unsubstituted or substituted alkyl, aryloxy or aryloxysulfonyl radical or a radical of the formula ##STR2## R.sub.3 is an unsubstituted or substituted alkyl or aryl radical; R.sub.4 is hydrogen or alkyl; and R.sub.5 and R.sub.6 are each independently hydrogen or an unsubstituted or substituted alkyl, cycloalkyl or aryl radical, with the proviso that R.sub.1 may not be hydrogen or halogen if R.sub.2 is an unsubstituted or substituted aryloxysulfonyl radical, a radical of the formula ##STR3## or the trifluoromethyl group, and the sulfo group is attached to the benzene ring of the indole radical, produce dyeings of good light- and wetfastness properties on polyamide material.

Abstract: The present invention relates to monoazo dyes which dye polyamide material with good light- and wet-fastness and which have the formula ##STR1## in which K is the radical of an amino- or alkoxy-benzene, amino- or alkoxy-naphthalene, naphthol, aminonaphthol, pyrazolone, aminopyrazole, indole, naphthimidazole, diphenylamine, tetrahydroquinoline or acetoacetamide and can be further substituted, R is hydrogen, halogen, C.sub.1-6 -alkyl, trifluoromethyl, carboxyl or a --SO.sub.2 --C.sub.1-6 --alkyl, --SO.sub.2 --R.sub.1, ##STR2## --CO--R.sub.4 group, in which R.sub.1 is a substituted or unsubstituted phenyl- or naphthyl-C.sub.1-4 -alkyl radical, R.sub.2 and R.sub.3 independently of one another are hydrogen or a substituted or unsubstituted C.sub.1-6 -alkyl or C.sub.5-7 -cycloalkyl radical and R.sub.4 is a substituted or unsubstituted phenyl radical, and X is hydrogen, C.sub.1-4 -alkyl, C.sub.1-4 -alkoxy or halogen, and in which R in formula (1) may not be hydrogen or chlorine if the radical --N.dbd.

Abstract: The monoazo dyes of the formula ##STR1## in which K is the radical of a coupling component of the aminobenzene, alkoxybenzene, hydroxybenzene, pyrazolone, aminopyrazole, pyrimmidine, indole, diphenylamine or acetoacetamide series, R is a substituted or unsubstituted C.sub.1-12 alkyl, cycloalkyl, aralkyl or aryl radical, X is a --CO-- or --SO.sub.2 -- group, a --COO-- group, R being attached to the oxygen atoms, or an --SO.sub.2 NH-- or ##STR2## group, R being attached to the nitrogen atom and Y being hydrogen or C.sub.1-4 alkyl, and Z is hydrogen or C.sub.1-4 alkyl, produce dyeings having good fastness to light and wet processing on polyamide material.

Abstract: Novel monoazo compounds of the formula I ##STR1## and mixtures of these compounds with one another are described. The substituents X, R, R.sub.1, R.sub.2 and R.sub.3 are defined as follows: R is a phenyl or naphthyl radical which is unsubstituted or substituted by C.sub.1 -C.sub.4 -alkyl, or is a cycloalkyl radical which is unsubstituted or substituted by C.sub.1 -C.sub.4 -alkyl, or is a C.sub.1 -C.sub.8 -alkyl radical which is unsubstituted or substituted by cyano, halogen, phenyl or sulfophenyl, or is a propenyl radical which is unsubstituted or substituted by halogen, X is hydrogen or halogen, R.sub.1 is hydrogen or a C.sub.1 -C.sub.4 -alkyl radical, R.sub.2 is C.sub.1 -C.sub.8 -alkyl radical, a C.sub.1 -C.sub.4 -sulfatoalkyl radical, a C.sub.1 -C.sub.4 -sulfoalkyl radical or a cycloalkyl radical and R.sub.3 is a C.sub.1 -C.sub.4 -alkyl radical, or is a cycloalkyl radical which is unsubstituted or substituted by C.sub.1 -C.sub.

Abstract: Compounds useful for dyeing nylon, wool, and leather, having the formula: ##STR1## wherein X.sup.1 is chlorine, bromine, methyl or trifluoromethyl, Y.sup.3 is chlorine or bromine, and K.sup.1 is a radical of the formula ##STR2## where R.sup.3 is C.sub.2 to C.sub.4 hydroxyalkyl, methoxyethyl or methoxypropyl.

Abstract: Monoazo dyes of the formula ##STR1## in which K is the radical of a coupling component of the benzene or naphthalene series or of the heterocyclic series, and R is a ##STR2## --CO--R.sub.2 or --SO.sub.2 --O--R.sub.2 group in which R.sub.1 is hydrogen or C.sub.1-4 -alkyl and R.sub.2 is a substituted or unsubstituted monosulfo-C.sub.1-12 -alkyl radical, a substituted or unsubstituted monosulfophenyl, disulfophenyl, monosulfonaphthyl or disulfonaphthyl radical, and X and Y, independently of each other, are hydrogen, C.sub.1-4 -alkyl, C.sub.1-4 -alkoxy, halogen, C.sub.2-6 -alkanoylamino, C.sub.1-5 -alkylsulfonylamino or a substituted or unsubstituted phenyl or phenoxy radical, produce dyeings on polyamide material which have good light and wet fastness properties.

Abstract: Monoazo dyes of the formula ##STR1## in which K is a radical of the formula ##STR2## or of the formula ##STR3## in which R.sub.1 and R.sub.2 independently of one another is (sic) hydrogen, C.sub.1-4 -alkyl, which can be substituted by halogen, cyano, hydroxyl, carboxyl, sulfo, sulfato, C.sub.1-4 -alkoxy, C.sub.1-4 -alkoxycarbonyl, C.sub.1-4 -alkanoyloxy, phenyl, sulfophenyl and naphthyl, or cyclohexyl, or C.sub.1-4 -alkenyl, which can be substituted by halogen, or phenyl or naphthyl, or in which R.sub.1 and R.sub.2, together with the nitrogen atom connecting them and where relevant with the inclusion of a further hetero-atom, form a heterocyclic 5-membered or 6-membered ring, R.sub.3 is hydrogen, C.sub.1-4 -alkyl, C.sub.1-4 -alkoxy, which can be substituted by hydroxyl and C.sub.1-4 -alkoxy, or C.sub.1-4 -alkanoylamino, or benzoylamino, which can be substituted in the benzene nucleus by methyl, ethyl, methoxy, ethoxy, chlorine, carboxyl and sulfo, or ureido, C.sub.

Abstract: Disclosed are new acid azo dyes prepared from 2-amino-cinnamoylthiophene compounds. These dyes give bright red to blue shades, for example, on polyester, cellulose acetate, wool and particularly polyamide fibers and exhibit improvements in one or more of such properties as bathochromic shift, fastness to light, sublimation, chlorine, heat, ozone, gas, perspiration, crock, and wash, build, pH stability, bloom resistance, depth of shade, leveling, strike rate, migration, and the like. The dyes have the general formula ##STR1## wherein: R.sup.14 is H or alkyl; R is a substituent selected, for example, from alkyl, substituted alkyl, hydroxy, alkoxy, halogen, nitro, alkoxycarbonyl, alkanoyloxy, alkanoyl, cyano, alkylamino, and dialkylamino; C.sup.1 represents an aniline, tetrahydroquinoline or benzomorpholine coupling component which may be extensively substituted; each of R.sup.12 and R.sup.13 is selected from H, alkyl, alkoxy, acyl, halogen, and the like; and at least one of the water solubilizing groups, --SO.

Abstract: A dispersing agent comprising the salt of a tertiary amine containing at least one poly(lower alkyleneoxy) chain and an aromatic acid having at least two benzene rings and a dispersion of an organic pigment, an organic dyestuff or carbon black in a polar organic solvent containing said dispersing agent is disclosed.