Abstract: The present invention relates to a method of colouring keratin-containing fibres comprising applying at least one diazonium compound of formula Ia or Ib, wherein R1 to R5 are each independently of the others C1-C12alkyl, C5-C14aryl, C5-C8cycloalkyl, C6-C20aralkyl, C1-C12alkoxy or C1-C12alkylthio unsubstituted or substituted by one or more halogen atoms, nitro, cyano or alkoxy groups; or hydrogen, halogen, hydroxy, nitro, COOH, SO3H, CN, SCN, C1-C4alkylsulfonyl, phenylsulfonyl, benzylsulfonyl, di-C1-C4alkylaminosulfonyl, C1-C4alkylcarbonylamino, C1-C4alkoxysulfonyl or dihydroxy-C1-C4alkylaminosulfonyl and X? is o?, COO? or SO3?, and at least one coupling component, preferably a a water-soluble to the material to be coloured and causing them to react at a pH in the range of 8 to 12.

Abstract: The present invention relates to novel pigments of formula (1), wherein R1 is hydrogen or C1-C12alkyl, R2 is hydrogen, —CN, —COO-aryl, —COO-heteroaryl, —CONH-aryl or —CONH-heteroaryl, and R3 is the radical of a heteroaromatic compound of formula or R2 and R3 together form a radical of formula wherein R4, R5, R6 and R7 are defined herein and to a process for the preparation of those pigments, and to their use in the production of coloured plastics or polymeric colour particles.

Abstract: The present invention relates to compositions comprising at least one oxonol dye and at least one metal complex of formula (I-1) or (I-2), to recording media comprising the compositions and to use of the compositions in the production of optical recording media, colour filters and printing inks, wherein the substituents are as defined in the description. Use of the metal complexes of formula (I) results, surprisingly, in a comparatively weak tendency of the oxonol dyes to aggregate in the solid state so that the absorption curve remains advantageously narrow even in the solid state, as a result of which recording media having high reflectivity as well as high sensitivity and good playback characteristics in the desired spectral range are made available.

Abstract: The present invention relates to a method of colouring keratin-containing fibres, especially human hair, in which method a compound of formula (I), wherein R is hydroxy or NHR1, R1 being hydrogen or C1-C4alkyl, and B is an aromatic or heterocyclic ring, is diazotised, and the resulting diazonium salt is applied at a pH of from 2 to 5 to the material being coloured and then, by means of increasing the pH to from 7 to 12, is fixed on the material in the form of an oligomeric or polymeric colorant.

Abstract: The cationic dyes of formula (1) specified in claim 1 are suitable especially for colouring keratin-containing fibres, more especially for colouring hair.

Abstract: The present invention relates to a method of mass-colouring synthetic materials, which comprises using at least one pigment dye of formula (1) wherein R and R1 together form a phenyl or heteroaryl radical and R2 is hydrogen, or R1 and R2 together form a phenyl or heteroaryl radical and R is hydrogen, and the rings A and B may each independently of the other be substituted by C1-C4?alkyl, C1-C4alkoxy, halogen, —COOR3, —CONHR4 and/or by —SR5, wherein R3, R4 and R5 are each independently of the others hydrogen, C1-C4alkyl, C6-C12aryl or heteroaryl, to synthetic materials coloured with such pigment dyes, and to novel pigment dyes of formula (3), wherein R6 is hydrogen or bromine.

Abstract: A method of colouring porous material, especially human hair, is described, which method comprises applying to the material being coloured, in any desired order successively, or simultaneously, a) a capped diazonium compound and b) a water-soluble coupling component under conditions such that, initially, coupling does not take place, and then causing the capped diazonium compound present on the material to react with the coupling component.

Abstract: This invention relates to dyes of formula wherein R1 is hydrogen, halogen, C1-C8alkyl, —NH—CO—C1-C4alkyl or phenyl, R2 is hydrogen, halogen, C1-C8alkyl, C1-C8alkoxy, —NH—CO—C1-C4alkyl or phenyl, R3 is hydrogen, C1-C8alkyl or phenyl, R4 is hydrogen, halogen or C1-C8alkyl, and X is —CO—, — COO—or —SO2—, and n is the number 1 or 2, to their preparation and to their use for dyeing or printing natural and synthetic materials, in particular synthetic polyamide fibre materials.

Abstract: The present invention relates to a method for the trichromatic dyeing or printing of natural or synthetic polyamide fiber material, which method comprises using at least one blue-dyeing dye of formula wherein X, W, A, B, Q1, Q2 and z are as defined in claim 1 for formula (1), together with at least one red-dyeing dye of formula wherein R, R′, R5, R6, R7, R8 and X1 are as defined in claim 1 for formula (2), and together with at least one yellow- or orange-dyeing dye of formula or of formula wherein R, R′, X2, X3, R9, R10, R11, R12, R13, R14, R15 and R16 are as defined in claim 1 for formulae (3) and (4), and to new acid dyes.

Abstract: The present Application relates to pigment colourants of formula wherein R1 is C1-C6alkyl, C1-C6alkoxy, phenoxy or halogen, R2 is hydrogen, C1-C6alkyl, C1-C6alkoxy, phenoxy, halogen, acylamino, —CH2NHacyl or the radical and R3 is C1-C6alkyl, C1-C6alkoxy, phenoxy or halogen, the ring A may be further substituted by —SO3−M+, wherein M+ is a cation, and the rings B and C may be unsubstituted or further mono- or poly-substituted by halogen, hydroxy, —SH, amino, C1-C6alkylamino, C1-C6alkyl, C1-C6alkoxy, phenoxy, acylamino, C1-C6thioalkyl or by thiophenyl, and the ring B may be substituted in the 5- or 8-position by a radical of formula wherein R1, R2 and R3 are as defined above, to a process for their preparation, and to their use in the mass-coloring of synthetic materials.

Abstract: The present Application relates to pigment colorants of formula 1

Abstract: A method of improving the stability to ozone exposure of dyes on natural or synthetic polyamide fiber materials comprises treating the fiber material, before, during or after dyeing, with a liquor comprising a homopolymer or copolymer having structural repeating units of formula (1) in which R1 is unsubstituted or substituted C1-C4alkyl. The resulting dyeings and prints feature improved ozone fastness with no effect on hue, colour yield and other fastness properties such as light fastness, for instance.

Abstract: Concentrated aqueous dye solutions, which comprise 5 to 50% by weight of at least one dye of formula (1) ##STR1## wherein X and Y are each independently of the other hydrogen or C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy, and Z is C.sub.2 -C.sub.6 alkanoylamino or C.sub.2 -C.sub.4 hydroxyalkylsulfamoyl,M.sup.+ is the ammonium cation ##STR2## of an amine of formula ##STR3## wherein R.sub.1 and R.sub.2 are each independently of the other hydrogen, C.sub.1 -C.sub.6 alkyl, or hydroxy- or amino-substituted C.sub.2 -C.sub.6 alkyl which may be interrupted by an oxygen atom, and R.sub.3 is hydroxy- or amino-substituted C.sub.2 -C.sub.6 alkyl which may be interrupted by an oxygen atom, with the proviso that R.sub.1, R.sub.2 and R.sub.3 are not a radical of formula --CH.sub.2 --CH(OH)--CH.sub.

Abstract: The invention relates to dye mixtures comprising at least one dye of formula (1) ##STR1## wherein R.sub.1 is hydrogen, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy and R.sub.2 is hydrogen or C.sub.1 -C.sub.4 alkyl, together with at least one dye of formula (2) ##STR2## wherein R.sub.3 is hydrogen, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy, R.sub.4 is hydrogen or C.sub.1 -C.sub.4 alkyl and R.sub.5 is C.sub.2 -C.sub.6 alkyl uninterrupted or interrupted by oxygen, with the proviso that R.sub.1 is not methyl when R.sub.2, R.sub.3 and R.sub.4 are hydrogen and R.sub.5 is ethyl.The dye mixtures are suitable for dyeing or printing natural or synthetic polyamide fibre materials, especially in combination with other dyes and especially from short liquors. The dye mixture is distinguished by generally good properties, especially good uptake and good solubility.

Abstract: Dye mixtures, which comprise at least one dye of formula ##STR1## and at least one dye of formulae (2) and (3) ##STR2## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 R.sub.5, R.sub.6 R.sub.7, X.sub.1, X.sub.2, A.sub.1, A.sub.2, A.sub.3 and A.sub.4 are as defined in claim 1.The dye mixtures according to this invention are particularly suitable for dyeing or printing natural or synthetic polyamide fiber material.

Abstract: A process for dyeing or printing natural or synthetic polyamide fiber material by the trichromatic technique, which comprises using at least one blue-dyeing dye of formula ##STR1## together with at least one red-dyeing dye of formula ##STR2## together with at least one yellow- or orange-dyeing dye of formula ##STR3##

Abstract: Process for dyeing natural or synthetic polyamide fibre materials, which comprises dyeing these fibre materials with at least one anionic acid dye of the formula ##STR1## and treating the fibre material mentioned, during or after the dyeing process, with a colourless fixing agent which contains sulfo or sulfato groups and contains at least two fibre-reactive groups, whereR.sub.1 and R.sub.2 independently of one another are hydrogen or substituted or unsubstituted C.sub.1 -C.sub.4 alkyl,X.sub.1 is substituted or unsubstituted C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.7 cycloalkyl, phenyl or naphthyl,or the radical of the formula --N(R.sub.2)--X.sub.1 is a ring, which may contain further heteroatoms,Y.sub.1 is a radical of the formula ##STR2## in which B.sub.1 is a colourless organic bridge member,R.sub.3 is hydrogen or substituted or unsubstituted C.sub.1 -C.sub.4 alkyl andR.sub.4 is hydrogen or substituted or unsubstituted C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.7 cycloalkyl, phenyl or naphthyl, andA.sub.

Abstract: Anionic acid dyes of the formula ##STR1## in which R.sub.1 and R.sub.2 independently of one another are hydrogen or substituted or unsubstituted C.sub.1 -C.sub.4 alkyl,X.sub.1 is C.sub.1 -C.sub.8 alkyl, substituted or unsubstituted C.sub.5 -C.sub.7 cycloalkyl, phenyl or naphthyl which are unsubstituted or substituted by C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.2 -C.sub.4 alkanoylamino, amino, hydroxyl, ureido, halogen, carboxyl or sulfo,or the radical of the formula --N(R.sub.2)--X.sub.1 is a ring, which may contain further heteroatoms,Y.sub.1 is a radical of the formula ##STR2## in which B.sub.1 is a colourless organic bridge member,R.sub.3 is hydrogen or C.sub.1 -C.sub.4 alkyl and R.sub.4 is hydrogen or substituted or unsubstituted C.sub.1 -C.sub.4 alkyl,W.sub.1 is hydrogen or a radical of the formula --CO--R, in whichR is substituted or unsubstituted C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.7 cycloalkyl, phenyl or naphthyl and A.sub.1 is as defined in claim 1.

Abstract: Process for dyeing natural or synthetic polyamide fiber materials, which comprises dyeing these fiber materials with at least one anionic acid dye of the formula ##STR1## and treating the fiber material mentioned, during or after the dyeing process, with a colorless fixing agent which contains sulfo or sulfato groups and contains at least two fiber-reactive groups, whereR.sub.1 and R.sub.2 independently of one another are hydrogen or substituted or unsubstituted C.sub.1 -C.sub.4 alkyl,X.sub.1 is substituted or unsubstituted C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.7 cycloalkyl, phenyl or naphthyl, or the radical of the formula --N(R.sub.2)--X.sub.1 is a ring, which may contain further heteroatoms,Y.sub.1 is a radical of the formula ##STR2## in which B.sub.1 is a colorless organic bridge member,R.sub.3 is hydrogen or substituted or unsubstituted C.sub.1 -C.sub.4 alkyl andR.sub.4 is hydrogen or substituted or unsubstituted C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.7 cycloalkyl, phenyl or naphthyl, andA.sub.

Abstract: Dye mixtures which comprise at least one dye of the formula ##STR1## and at least one dye of the formula ##STR2## in which Y.sub.1 is a radical of the formula ##STR3## and R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8, X.sub.1, X.sub.2, X.sub.3, L, W.sub.1, B.sub.1, A.sub.1, and A.sub.3 are as defined in claim 1.The dye mixtures according to the invention are particularly suitable for dyeing or printing natural or synthetic polyamide fibre materials.