Abstract: Concentrated dye compositions (P) which are solutions of y % by weight of at least one anionic dye (A) in a solution of x % by weight of benzyl alcohol (B) in water, and z % by weight of at least one formulation additive (F), in which x is a number in the range from 0.5 to 4, y is a number in the range from 5 to 35 and z is a number in the range from 0 to 2, and are essentially free from alcohols other than (B) and from solvents or solubilizers other than water and (B) are distinguished by their surprisingly good stability and can be used for any desired dyeing methods for which the respective dyes (A) themselves can be employed, be it for the dyeing of fibre material or be it, in particular, for the coloring of non-fibrous substrates.

Abstract: Asymmetrical 1:2 chromium complex dyes of formula (I), wherein X signifies —SO3M, —SO2NR1R2 or chlorine, Y signifies hydrogen, —SO3M or chlorine, R1 signifies hydrogen, C1-6alkyl, C2-3-hydroxyalkyl or a radical of formulae (a) or (b), R2 signifies hydrogen, C1-6alkyl or C2-3-hydroxyalkyl, or R1 and R2 together with the nitrogen atom to which they are attached, form a 5- or 6-membered saturated heterocycle, R3 signifies hydrogen, C1-2-alkyl, chlorine, —COOM or —SO3M, R4 signifies hydrogen, C1-2-alkyl, C1-2-alkoxy chlorine or —SO3M, n signifies from 0 to 3, M signifies in each case hydrogen or a nonhromophoric cation, and M+signifies hydrogen or a nonchromophoric cation, are useful for dyeing artificially produced oxide layers on aluminium or aluminium alloys, on which they produce grey dyeings in high color yield and hue reproducibility

Abstract: Water-soluble dyes of the formula in which R1 is hydrogen, hydroxyl, C1-4-alkyl, C1-4-alkoxy, halogen or SO3M, R2 is hydrogen, C1-4-alkyl or C3-6-cycloalkyl, B is the radical of a carbocyclic, heterocyclic or methylene-active non-cyclic coupling component having at least two optionally fused carbocyclic rings, and M is hydrogen or a non-chromophoric cation, the ring A has no further substituents or is substituted with from one to four of the following substituents: C1-4-alkyl, C1-4-alkoxy, halogen, —NO2, —COOM and, —SO3M, and the group —N═N—B is bonded to position 3 or 4 of the ring A, with the proviso that the molecule contains at least two —SO3M groups, are suitable for dyeing or colouring non-fibrous substrates, in particular anodized aluminium or water-soluble plastic compositions.

Abstract: 1:2 chromium complex dyes of the formula in which R signifies C1-9-alkyl or a radical of the formula R1 signifies C1-4-alkyl, —COOM, —COOR5 or —CONH2, R2 signifies hydrogen or —SO3M, R3 signifies hydrogen, methyl or methoxy, R4 signifies hydrogen, methyl, methoxy or chloro, n signifies from 0 to 3, M signifies hydrogen or a non-chromophoric cation and Kat+ signifies hydrogen or a non-chromophoric cation are suitable for dyeing artificially produced oxide layers on aluminium or aluminium alloys and so give highly lightfast dyeings in orange shades.

Abstract: 1:2 chromium complex dyes of the formula: in which R signifies C1-9-alkyl or a radical of the formula: R1 signifies C1-4-alkyl, R2 signifies hydrogen or —SO3M, R3 signifies hydrogen, methyl or methoxy, R4 signifies hydrogen, methyl, methoxy or chloro, n signifies from 0 to 3, M signifies hydrogen or a non-chromophoric cation and Kat+signifies hydrogen or a non-chromophoric cation, are suitable for dyeing artificially produced oxide layers on aluminium or aluminium alloys and so give rise to highly lightfast dyeings in yellow shades.

Abstract: Complexes of the formula ##STR1## which are in free acid or salt form, and mixtures thereof, wherein each ofR.sub.1 and R.sub.3 is independently hydrogen, C.sub.1-4 alkyl or C.sub.1-4 alkyl monosubstituted by hydroxy, amino, sulfo or carboxy,each ofR.sub.2 and R.sub.4 is independently hydrogen; C.sub.1-4 alkyl; C.sub.1-4 alkyl monosubstituted by hydroxy, amino, sulfo or carboxy; --COR.sub.5 ; --COOR.sub.6 or --CONHR.sub.7,M is chromium or cobalt, andM.sub.K.sup..sym. is hydrogen or a non-chromophoric cation, useful for dyeing or printing, materials such as natural and synthetic polyamides and particularly artificially produced oxide layers on aluminum and aluminum alloys.

Abstract: Compounds of the formula ##STR1## wherein R.sub.1 is nitro or cyano;R.sub.2 is cyano or halo;R.sub.3 is C.sub.1-4 alkyl;R.sub.4 is methyl or ethyl;R.sub.5 is C.sub.1-8 alkyl; andR.sub.6 is --CH.sub.2 CHOHCH.sub.2 O(CH.sub.2 CH.sub.2 O).sub.a R.sub.7, --CH.sub.2 CHOHC.sub.6 H.sub.5, --CH(C.sub.6 H.sub.5)CH.sub.2 OH; --(CH.sub.2).sub.n O--CO--NHR.sub.3, --CH.sub.2 CH(R.sub.4)--O--CO--NHR.sub.3 ; --(CH.sub.2).sub.n --O--CO--R.sub.3, --CH.sub.2 CH(R.sub.4)--O--CO--R.sub.3 or C.sub.2-4 hydroxyalkyl, with the provisos that R.sub.6 may be any of the last three groups only when R.sub.1 and R.sub.2 are both cyano and that R.sub.6 may be C.sub.2-4 hydroxyalkyl also when R.sub.5 is C.sub.1-2 alkyl,whereinR.sub.7 is phenyl; phenyl substituted by 1 or 2 substituents independently selected from hydroxy, chloro, bromo, methyl and C.sub.1-4 alkoxy; benzyl; benzyl substituted by 1 or 2 substituents independently selected from hydroxy, chloro, bromo, methyl and C.sub.

Abstract: Compounds of the formula ##STR1## in which D is a diazo component radical,K is unsubstituted or substituted 1,4-phenylene or 1,4-naphthylene,R.sub.1 is, in the case where K is unsubstituted or substituted 1,4-phenylene, hydrogen, (C.sub.1-4)alkyl, C.sub.2-4 alkenyl, ##STR2## or (C.sub.2-4)alkyl or (C.sub.2-4)alkenyl monosubstituted by chlorine, bromine, hydroxy, cyano, (C.sub.1-4)alkoxy, phenoxy, phenyl, formyloxy, alkyl(C.sub.1-4)carbonyloxy, benzoyloxy, alkoxy(C.sub.1-4)carbonyl, alkoxy(C.sub.1-4 alkoxy)carbonyloxy, mono(C.sub.1,4 -alkyl)aminocarbonyloxy or dialkyl(C.sub.1-4)aminocarbonyloxy, or in the case where K is unsubstituted or substituted 1,4-naphthylene, R.sub.1 is hydrogen, C.sub.1-4 alkyl or (C.sub.2-4)alkenyl,R.sub.2 is (C.sub.1-4)alkylene or C.sub.2-4 alkylene-O-C.sub.2-4 alkylene, and where R.sub.1 is ##STR3## the R.sub.

Abstract: Compounds of the formula ##STR1## wherein D is a diazo component radical,K is the radical of a coupling component of the 1,4-phenylene or 1,4-naphthylene series,R.sub.1 is hydrogen; alkyl; or alkenyl; and when K is a coupling component radical of the 1,4-phenylene series, R.sub.1 is also alkenyl monosubstituted by halogen; or alkyl which is substituted by a halogen, hydroxy, alkoxy, acyloxy, phenyl, phenoxy, cyano, alkenyloxy, alkynyloxy or alkoxyalkynyloxy group and is optionally further substituted by a hydroxy group,R.sub.2 is hydrogen, acyl, alkyl or alkyl monosubstituted by halogen, alkoxy, phenyl, phenoxy, benzyloxy, hydroxy or acyloxy and ##STR2## with the proviso that when R.sub.4 is ##STR3## K is a coupling component radical of the 1,4-naphthylene series, R.sub.5 is hydrogen, or ##STR4## each of R.sub.3 and R.sub.3 ' is independently hydrogen or alkyl, or R.sub.3 and R.sub.3 ' together with the carbon atom to which they are bound form a cyclohexane ring, with the proviso that when R.sub.3 and R.sub.

Abstract: Compounds of the formula, ##STR1## in which D is a diazo component radical of the benzene, pyrazole, thiophene, thiazole, isothiazole or thiadiazole series,K is 1,4-phenylene, substituted 1,4-phenylene or 1,4-naphthylene,R.sub.1, in the case where K is 1,4-naphthylene, is hydrogen or (C.sub.1-4)-alkyl or, in the case where K is 1,4-phenylene or substituted 1,4-phenylene, R.sub.1 is hydrogen, (C.sub.1-4)alkyl, (C.sub.1-4)alkyl monosubstituted by chlorine, bromine, vinylsulphonyl, hydroxy, cyano, (C.sub.1-2)alkoxy, phenyl, acetyl, phenoxy, formyloxy, alkyl(C.sub.1-3)carbonyloxy, benzoyloxy, alkoxy(C.sub.1-2)carbonyl, alkoxy(C.sub.1-2)carbonyloxy, (C.sub.1-2)alkylaminocarbonyl, di(C.sub.1-2)alkylaminocarbonyl or --CO--O--C(U.sub.1 U.sub.2)--C.tbd.C--U.sub.3 ; (C.sub.3-4)alkyl substituted by hydroxy and one further substituent selected from the group consisting of chlorine, (C.sub.1-4) alkoxy, hydroxy, phenoxy and benzyloxy; (C.sub.2-4)alkenyl; chloro(C.sub.3-4)alkenyl or bromo(C.sub.3-4)alkenyl,R.sub.