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Horst Tappe

Kurt Roth

Ulrich Buhler

Werner H Russ

Joachim Ribka

Albert Bode

Dieter Oehme

Uwe Kosubek

Hans-Jurgen Weyer

Manfred Hahnke

Klaus Kuhlein

Reinhard Kuhn

Klaus Hofmann

Holger M Buch

Rudolf Lowenfeld

Horst Kindler

Maria Kallay

Ludwig Schlafer

Christian Schumacher

Hubert Kruse

Margareta Boos

Rolf Muller

Herbert Wille

Theo Stahl

J Org Dannheim

Ulrich Bte,uml/u/ Hler

Claus Schuster

Margareta Boss

Sien L Ong

Winfried Seidel

Hans Mayer

Eberhardt Hebestreit

Heinz Hanel

Wolfgang Bodenstedt

Hans-J Weyer

Water-soluble azo compounds, preparation thereof and use thereof as dyes There are described monoazo compounds conforming to the formula (1) ##STR1## which are used as dyes having fiber-reactive properties for preparing strong, red, fast dyeings and prints on hydroxy- and/or carboxamido-containing material, in particular fiber material, such as wool and synthetic polyamide fibers and in particular cellulose fibers, such as cotton. In the formula (1): M is hydrogen or an alkali metal; R.sup.1 is hydrogen or sulfo; R.sup.2 is hydrogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, sulfo, hydroxy, halogen or carboxy; R.sup.3 is hydrogen, halogen, alkyl of 1 to 4 carbon atoms or alkoxy of 1 to 4 carbon atoms; Y is vinyl or is ethyl which contains in the .beta.-position a substituent which is eliminable with alkali to form a vinyl group; p is 1 or 2; the one --SO.sub.3 M group is attached to the naphthalene ring para or meta to the amino group.

Water-soluble phenyl azo aminoaphtol azo compounds containing a

Triphendioxazine compounds corresponding to the formula ##STR1## which are suitable as fiber-reactive dyestuffs for dyeing and printing material, in particular fiber material, containing hydroxy and/or carboxamide groups, such as wool and synthetic polyamide fibers, and especially cellulose fibers, such as cotton, are described. In formula (1), M is hydrogen or an alkali metal and Z is a radical of the formula (2) ##STR2## in which R is hydrogen, sulfo, alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms, nitro or cyano, W is alkylene having 3 to 6 carbon atoms and the group --SO.sub.2 --Y is a fiber-reactive group of the vinyl sulfone series.

Triphendioxazine compounds, processes for their preparation and their

Disazo dyestuffs containing sulfo groups and having fiber-reactive properties, which are capable of dyeing materials containing hydroxyl groups and/or carboxamide groups, in particular fiber materials, such as synthetic polyamide fibers, wool and in particular cellulose fiber materials, in deep fast shades. They contain a group corresponding to the formula ##STR1## in which R.sup..alpha. is hydrogen or alkyl having 1 to 4 carbon atoms, which can be substituted by carboxyl, sulfo, cyano, hydroxyl or chlorine;

Disazo dyestuffs having a triazine moiety and a fiberreactive group of

Water-soluble dyes having fiber-reactive properties and conforming to the general formula (1) ##STR1## where F is the radical of a metal-free or heavy metal complex monoazo or disazo dye which contains at least one sulfo group,

Water-soluble fiber-reactive monoazo and disazo dyestuffs having a

Water-soluble monoazo compounds according to the general formula (1) below having valuable fiber-reactive dyestuff properties which dye carboxamido- and/or hydroxy-containing materials, in particular cellulose fibers, in fast yellow to orange hues. ##STR1## in which the symbols denote: M is hydrogen or an alkali metal,

Water soluble naphthylazopyrazolone dyestuffs having fiber-reactive

Monoazo compounds conforming to the general formula (1) shown and defined hereinafter have very good fiber-reactive dye properties and dye hydroxy- and/or carboxamido-containing material, in particular fiber material, such as wool and in particular cellulose fibers, in strong fast shades. ##STR1## where the symbols have the following meanings: D is a benzene or naphthalene ring or a heterocyclic radical,

Monoazo compounds containing a fiber-reactive group and an

The invention relates to new 2,4-diaminophenyl tetrahydrofurfuryl ethers of the general formula VIII and to their salts with inorganic or organic acids ##STR1## in which R.sub.1, R.sub.2, R.sub.3 and R.sub.4, independently of one another, each represent a hydrogen atom, a (C.sub.1 -C.sub.4)alkyl group, hydroxy(C.sub.2 -C.sub.4)alkyl group, dihydroxy(C.sub.3 -C.sub.4)alkyl group, halogeno(C.sub.2 -C.sub.4)alkyl group, amino(C.sub.2 -C.sub.4)alkyl group or an amino(C.sub.2 -C.sub.4)alkyl group which is substituted once or twice by methyl, ethyl or hydroxyethyl radicals on the nitrogen, the carbon chain having a straight or branched arrangement, and it being a proviso that at least one of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 represents a hydrogen atom, to processes for their preparation, and to aqueous tinting compositions for keratin fibres such as fur and human hair, containing at least one coupler and at least one developing component together with customary additives and auxiliaries, the coupler corresponding to the general formula VIII or to the acid salts of these compounds.

2,4-Diaminophenyl tetrahydrofurfuryl ethers, processes for their

Monoazo dyestuff of the formula ##STR1## wherein R.sup.1 is 4 alkyl having 1 to 3 carbon atoms, and

2-cyano-4,6-dinitrophenyl mono-azo dyes for polyester and cellulose

Synthetic fiber materials are effectively colored by dyeing or printing with a dyestuff mixture containing at least two separate dyestuffs (I) and (II) in a weight ratio of (I):(II) of from (20 to 99):(80 to 1) wherein: (I) is at least one dyestuff of the formula ##STR1## and (II) is at least one dyestuff of the formula ##STR2## in which X and Y are the same or different and each is independently chloro and bromo:

Mixtures of blue mono-azo disperse dyestuffs and their use for dyeing

Dyestuff mixtures which contain dyestuffs (A) of the formula ##STR1## and dyestuff (B) of the formula ##STR2## in an (A):(B) weight ratio of (80 to 60):(20 to 40) useful for dyeing and printing hydrophobic fiber materials.

Dyestuff mixtures, process for their preparation and process for dyeing

Azo dyestuff of the formula ##STR1## wherein X is secondary amino or tertiary amino moiety, useful for dyeing and printing hydrophobic fiber materials to produce a deep orange color having excellent fastness properties and also useful for coloring organic solvents, mineral oil products, waxes, plastics and surface coatings.

Water-insoluble naphthol monoazo dyestuff

Monoazo dyestuffs, free of carboxylic acid moieties or sulphonic acid moieties, of the formula ##STR1## wherein A and A' independently of one another are linear or branched alkylene having 2 to 6 carbon atoms;

Water-insoluble monoazo dyestuffs, their preparation and their use

Azo dyestuff free from groups imparting solubility in water are used in the process for the production of white or variously colored designs on a colored substrate on textile material wherein the dyestuff is dischargeable to white and is of the formula

Azo dyestuff dischargeable to white

An improved process for the preparation of azo dyestuffs of the formula ##STR1## comprising diazotizing a 2-halo-4-nitroaniline at 10.degree. to 35.degree. C. in 70 to 100 percent by weight strength acetic acid by means of nitrosylsulphuric acid, adjusting the acetic acid content of the resulting diazo solution to 60 to 85% by the addition of water, and at a temperature from 15.degree. to 45.degree. C. adding an appropriate carbazole to the diazo solution as a solid or in the form of a suspension in 60 to 100 percent strength by weight acetic acid and coupling the carbazole to the diazotized amine to produce said azo dyestuff and isolating the dyestuff.

Preparation of anilino azo carbazole dyestuffs prepared by diazotization

Water-insoluble azo dyestuffs, their manufacture and use, which have the formula ##STR1## wherein D is a substituted phenyl or heterocyclic moiety which are free from ionic substituents and R.sup.1 is methyl or ethyl.

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Horst Tappe