Basf Aktiengesellschaft

Klaus Grychtol

Hans Baumann

Hans-Juergen Degen

Franz Feichtmayr

Manfred Eisert

Ernst Schefczik

Rainer Dyllick-Brenzinger

Udo Mayer

Karin H Beck

Andreas Oberlinner

Dietrich Lach

Hellmut Kast

Horst Bruder

Manfred Daubitz

Electrostatic toners containing a metal complex dye as charge stabilizer

Natural and synthetic polyamides are dyed with the betaines of 1:1 chromium complexes of sulfo-containing azo or azomethine dyes from an aqueous liquor.

Dyeing of natural or synthetic polyamides

A chromium complex dye of the formula ##STR1## and salts thereof are used for dyeing polyamides or leather.

Chromium complex dye for polyamides or leather

Basic colorants

Compounds of the formula I ##STR1## where K.sup..sym. is a cation, R is methyl or is phenyl which is unsubstituted or substituted by chlorine, bromine, methyl, methoxy or ethoxy, R.sup.1 is hydrogen, chlorine, bromine or nitro, R.sup.2 is hydrogen, chlorine, bromine, nitro, sulfamyl or hydroxysulfonyl, X and Y are each --O-- or --COO--, Z is --O-- or --NH--, D is a radical of a diazo component of the aniline or naphthylamine series and K is a radical of a coupling component, are very useful for dyeing natural and synthetic polyamide textile fibers and leather.

Asymmetric 1:2 chrome complex dye of a phenylazosulphonaphtholamine and

A compound of the formula: ##STR1## wherein R.sup.1 and R.sup.2 independently of one another are unsubstituted or hydroxy substituted, C.sub.1 -C.sub.4 alkoxy substituted, cyano substituted, C.sub.1 -C.sub.4 alkoxycarbonyl substituted, di-C.sub.1 -C.sub.4 alkylamino substituted, (CH.sub.3)(C.sub.6 H.sub.5 CH.sub.2)NC.sub.2 H.sub.4 substituted, chlorine substituted or bromine substituted C.sub.1 -C.sub.4 -alkyl, cyclohexyl, benzyl, phenylethyl or phenyl, R.sup.1 and R.sup.2 together with the nitrogen are morpholino, pyrrolidino, piperidino or N-methylpiperazino;

Compounds which in the form of the free acids correspond to the formula ##STR1## where A is a radical of a diazo component or of an amine,

Azo dye 2:1-chromium complexes

An unsymmetrical 1:2 chromium complex of a monoazo dyestuff and a disazo dyestuff which is non-fiber reactive and is free of sulfonamido and amino groups and which, in the form of the free acid has the formula: ##STR1## wherein A' is the radical of a 1-hydroxy-2-aminobenzene which is monosubstituted or disubstituted by chlorine, nitro, or sulfo, B' is a naphth-2-ol, resorcinol, p-(C.sub.1 -C.sub.6 -alkyl)-phenol, 1-phenol-3-methylpyrazol-5-one or acetoacetanilide radical, and the phenol group in the last two mentioned compounds can be substituted by C.sub.1 -C.sub.4 -alkyl C.sub.1 -C.sub.4 -alkoxy, chlorine or sulfo, K' is an unsubstituted or sulfo-substituted naphth-1-ol or naphth-2-ol radical, phenol which is substituted in the p-positioned by C.sub.1 -C.sub.6 -alkyl, an unsubstituted or sulfo-substituted 2-naphthylanime, and 1-phenol-3-methylpyrazol-5-one or an acetoactanilide radical, and the phenol group in the last two mentioned compounds can be substituted by C.sub.1 -C.sub.4 -alkoxy, chlorine or sulfo, and D' is the radical of a 1-hydroxy-2-aminobenzene or 1-amino-2-hydroxynaphthalene which is further substituted by nitro, sulfo or a mixture thereof. These dyes do not contain any fiber-reactive groups and are useful for dyeing various natural or synthetic nylon materials. In particular, the present dyes are useful for dying wool and leather. These dyes have good color strength, are high-hiding and have good fastness to washing and perspiration.

Unsymmetrical 1:2 chromium complex of a monoazo dyestuff and a disazo

Compounds of the general formula I ##STR1## where E is --CH.dbd. or --N.dbd., K is the radical of an amine or of a coupling component of the benzene, naphthalene, pyrazole, pyridine, pyrimidine, quinoline or isoquinoline series, or the radical of a 1,3-dicarbonyl compound which can be coupled, X is --O-- or --COO--, Y is --O--, --COO-- or --NH--, Z.sup.1 and Z.sup.2 independently of one another are unsubstituted or substituted alkyl or cycloalkyl, and one of them may furthermore be unsubstituted or substituted aryl, or Z.sup.1 and Z.sup.2 together with the nitrogen atom are a heterocyclic radical, and Z is unsubstituted or substituted C.sub.2 - or C.sub.3 -alkylene, from 1 to 4 sulfonic acid groups can be present and the rings A and B can be further substituted or can carry a fused benzene ring. The compounds of the present invention are suitable for dyeing or printing natural or synthetic N-containing materials, i.e., wool, leather or polyamide or polyurethane fibers, as wells as for coloring inks. The colored salts with amine bases are insoluble in water, but soluble in organic solvent. These colored salts can be used for dyeing organic liquids, resins or surface coatings, wood stains, paste for ball point pens, for coloring anodized aluminum, or for spin-dyeing, i.e., cellulose ester fibers for polyamide fibers.

Azo compound and an azomethine compound and having a tertiary N-dative

Mixtures of two or more cobalt 1:2 complexes of azo dyes of the formula I ##STR1## where R is ##STR2## where R.sup.1 is hydrogen, C.sub.1 -C.sub.18 -alkyl, or hydroxyalkyl or alkoxyalkyl which may be interrupted by oxygen, and X and Y are hydrogen, fluorine, chlorine, bromine, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy. The mixtures according to the invention are particularly useful for dyeing leather.

Complex dye mixture containing at least two cobalt 1:2 complexes of azo

1:2 Chromium complexes of arylazo-azamethines of the general formula ##STR1## where A is a naphthalene or benzene radical which may be monosubstituted or polysubstituted by alkyl, alkoxy or halogen.

1:2 Chromium complex dyes containing sulfonic acid groups

Polymeric dyes of the general formula I ##STR1## where A is the radical of a methylene-active compound, which may or may not be quaternized,

Polymeric dyes derived from bis-reactive methylene compounds and

Compounds of the general formula I ##STR1## where the radicals A, A.sup.1 and B are identical or different and

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Bad Durkheim, Germany

Klaus Grychtol