Abstract: Chromium complex dyes of the formula ##STR1## wherein represents a halogen atom, a C.sub.1 -C.sub.5 -alkyl group, a C.sub.1 -C.sub.2 -alkoxy group, a nitro group, a C.sub.2 -C.sub.3 -alkanoylamino or C.sub.2 -C.sub.3 -alkoxycarbonylamino group,Me.sym. represents a cation, andAr represents the radical of an aromatic or heterocyclic diazo component which carries one to three SO.sub.3 H and/or COOH groups, preferably one to three SO.sub.3 H groups or one SO.sub.3 H and one COOH group, and is optionally further substituted by halogen, C.sub.1 -C.sub.5 -alkyl, C.sub.1 -C.sub.2 -alkoxy or nitro. These dyes are suitable for dyeing and printing nitrogen-containing material such as wool, silk, synthetic polyamide and especially leather.

Abstract: Red monoazo dyestuffs from diazotized 1-aminobenzene-2-sulphonic acid-N-methyl-N-cyclohexylamide or 1-amino-4-, -5- or -6-methyl-benzene-2-sulphonic acid-N-methyl-N-cyclohexylamide and 2-amino-8-hydroxynaphthalene-6-sulphonic acid are disclosed which are particularly distinguished by their good migration and levelling properties and excellent fastness to light. Said dyestuffs are moreover suitable for obtaining very even combination dyeings together with known blue or yellow acid dyestuffs. These dyestuffs are particularly suited for the dyeing of carpeting, upholstery fabrics and drapery materials.

Abstract: The invention relates to chromium complex dyes which, in the form of the free acid, have the formula ##STR1## wherein X is a direct bond or a bridge member, each of Z and Z' independently is a nitrogen atom or a --CH-group, p is 1 or 2, each of Y and Y' independently is an oxygen atom or a group of the formula --NR--, wherein R is hydrogen or low molecular alkyl, with the proviso that if Z or Z' is a --CH-group, Y or Y' must be an oxygen atom, R.sub.1 is hydrogen or a substituent, B is a benzene or naphthalene radical, A is the radical of an o-hydroxyaldehyde if Z' is the --CH-group or, if Z' is a nitrogen atom, A is the radical of a coupling component which couples in the ortho-position to Y', D is the radical of an o-hydroxyaldehyde if Z is the --CH-group or, if Z is a nitrogen atom, D is the radical of a coupling component which couples in the ortho-position to Y, and n is an integer from 1 to 10.

Abstract: Bis-1:2 chromium complex dyes consisting of 2-chromium atoms, 2 molecules of a metallizable azo or azomethine compound and a bisazomethine of the formula ##STR1## wherein X is a direct bond or a bridge member, R.sub.1 is hydrogen or a substituent, and A is a benzene or naphthalene radical or a substituted or unsubstituted aliphatic or cycloaliphatic radical.

Abstract: 1:2 Chromium complex dyes of the formula ##STR1## wherein A represents the radical of a phenol substituted by alkyl and/or acylamino or of a 2-naphthol optionally substituted by acylamino, one V represents hydrogen and the other hydrogen or nitro, X is aryl, an aliphatic or araliphatic radical or an optionally substituted amino group and wherein the benzene ring a can be substituted by halogen, cyano, nitro, acylamino, low molecular alkyl, low molecular alkoxy, sulphonamide and sulphone groups, and the benzene ring b can carry a further fused benzene ring or can be substituted by halogen, nitro, low molecular alkyl or alkoxy and arylazo groups, and wherein K.sup.+ represents a cation.

Abstract: 1:2 Chromium complex dyes which contain one molecule of an azo or azomethine compound of the formula ##STR1## and one molecule of the azomethine compound of the formula ##STR2## COMPLEXED TO A CHROMIUM ATOM, IN WHICH FORMULAE A represents the radical of a diazo component of the benzene or naphthalene series, which carries the complex-forming group XH in ortho-position to the azo group,B represents the radical of a coupling component which couples in ortho-position to HX' or the radical of an aromatic o-hydroxyaldehyde,Z represents a nitrogen atom or the -CH group,X represents an oxygen atom or a -CO-O group,X' represents an oxygen atom, a NH group, a low molecular N-alkyl, N-aralkyl or N-aryl group, andR represents a substituted or unsubstituted aliphatic or cycloaliphatic radical,And the benzene ring a can carry a further fused benzene ring or can be substituted by halogen, nitro, alkyl and alkoxy, in particular by low molecular alkyl and alkoxy, and these compounds contain together 0 to 5 water-solubilizing

Abstract: The present invention provides heavy metal complexes of azo dyes of the formula ##STR1## wherein each of A and A' represents a coupling component of the phenylenediamine, naphthol, naphthylamine, pyrazolone, aminopyrazole, acylacetamide, pyridone, 2,4,6-triaminopyridine or barbituric acid series, which is bound in ortho-position to a hydroxy, amino or enolisable keto group to the azo group, while A and A' carry at least one sulpho group and contain no other ionogenic substituents.

Abstract: Asymmetrical 1:2-chromium complex dyestuffs having excellent fastness to light, rubbing, washing, alkali, milling sea water, decatizing and perspiration and having the formula ##STR1## WHEREIN A.sub.1 represents o-phenylene unsubstituted or substituted by halogen, nitro, lower alkyl, lower alkylsulphonyl, phenylsulphonyl, --SO.sub.3.sup.- M.sup.+ or ##STR2## wherein R.sub.1 represents hydrogen, lower alkyl and R.sub.2 represents hydrogen, lower alkyl or phenyl, or by a cellulosic fiber-reactive group, or o-naphthylene unsubstituted or substituted by --SO.sub.3.sup.- M.sup.+,A.sub.2 represents unsubstituted o-phenylene or o-naphthylene unsubstituted or substituted by hydroxyl or --SO.sub.3.sup.- M.sup.+, andA.sub.3 represents o-phenylene unsubstituted or substituted by halogen, nitro, lower alkyl, lower alkoxy, lower alkylsulphonyl, phenylsulphonyl, --SO.sub.3.sup.- M.sup.+ --or ##STR3## wherein R.sub.3 and R.sub.

Abstract: A process is described for the manufacture of chromium complexes of metallizable dyes in the form of solid dyestuff powders of low salt to salt-free content, or of concentrated solutions of low salt or salt-free content in which a metallizable dye, or a mixture of metallizable dyes, in an organic solvent which is immiscible or sparingly miscible with water, or reacted with a chromium compound, in the course of which any water which is liberated is removed by azeotropic distillation, and the resulting chromium complex, provided it is a 1:1 complex, is then optionally reacted in the presence of a base with a further mol of a metallizable dye, or of a colorless, complexforming compound, then isolated from undissolved constituents, and the resulting dye solution of low salt or salt-free content is optionally concentrated or evaporated to dryness, whereby it is possible the manufacture of 1:1 or 1:2 chromium complexes without the handicap of effluent pollution, and to isolate the dyes without using salt.

Abstract: Chromium complex dyes of the formula ##STR1## wherein Z is a nitro group or a chlorine atom, each of R and R.sub.1 is a phenyl radical which is optionally substituted by halogen, low molecular alkoxy, low molecular alkyl or nitro, one of the symbols X.sub.1, X.sub.2 and X.sub.3 is hydrogen and each of the others is hydrogen, a halogen atom, a nitro, methyl or methoxy group and Me.sup.+ is a cation. The dyes are suitable for dyeing and printing natural and synthetic polyamides to produce dyeings which are level and have good fastness to light, washing, fulling, decatizing and carbonizing.

Abstract: Chromium complex dyes which, in the form of their free acid, have the formula ##STR1## wherein one X represents the sulphonic acid group and the other X represents the nitro group, Y is a sulfone or sulfonamide group and Z is an acyl group. The dyes are suitable for dyeing natural and synthetic polyamides to produce dyeings which are level and have good fastness to light, perspiration, fulling, decatizing and carbonizing.

Abstract: Water-soluble disazo dyestuffs of the formula ##STR1## WHEREIN A represents phenyl, naphthyl or phenyl or naphthyl substituted by lower alkyl or sulphamoyl,B represents phenyl, lower alkyl-phenyl, naphthyl, phenol, lower alkylphenol, naphthol, benzoylaminonaphthol, N-methyl-N'-m-chloro-phenyl barbituric acid, or di-(phenylamino) malonic acid,Q represents 1,3- or 1,4-phenylene or 1,3- or 1,4-phenylene substituted by lower alkyl, chloro or bromo,R represents lower alkyl or COO.sup.- M.sup.+,X represents hydroxy or amino,Y represents a fiber reactive grouping capable of covalent bonding with cellulose and polyamide fibers group directly linked to a ring carbon atom of A or B,m represents a positive integer of at most 3, andn represents a positive integer of at most 5,And wherein which when m is 3, one Y is linked to A and the other to B are described. These dyestuffs are useful as dyes for cellulose and polyamide fibers.

Abstract: 1:2 Chromium complex dyes of an azo compound of the formula ##STR1## and an azomethine compound of the formula ##STR2## COMPLEXED TO A CHROMIUM ATOM, WHEREIN A is an ortho-phenylene or -- naphthylene diazo component radical; B is an ortho-phenylene or -- naphthylene coupling component radical; X is --O-- or --CO--O--; X' is --O--, --NH--, --N(lower alkyl)--, --N(aralkyl)-- or --N(aryl)--; R is an aliphatic radical; the benzene ring "a" is unsubstituted or substituted by a fused benzene ring, halo, nitro alkyl or alkoxy; the molecule containing 0-5 water solubilizing groups and optionally a group of the formula --N=N--Ar--N=N--Ar' and/or -N=N--Ar" wherein Ar, Ar' and Ar" represent an aromatic or carbocyclic radical.

Abstract: Chromium complex dyes of the formula ##STR1## WHEREIN Z represents a phenyl radical, an alkyl radical of 4 to 12 carbon atoms, a cycloalkyl radical of 5 to 9 carbon atoms or an aralkyl radical of 7 to 12 carbon atoms,S.sub.1 represents hydrogen, halogen, alkyl of 1 to 5 carbon atoms, alkoxy of 1 to 2 carbon atoms, nitro, alkanoylamino of 2 to 3 carbon atoms or alkoxycarbonylamino of 2 to 3 carbon atoms,S.sub.2 represents hydrogen, alkyl of 1 to 5 carbon atoms, alkanoylamino or alkoxycarbonylamino, each of 2 to 3 carbon atoms,Me.sup.+ represents a cation, andAr represents the radical of an aromatic or a heterocyclic diazo component which contains 1 to 3 SO.sub.3 H groups and is optionally further substituted by carboxy, halogen, alkyl of 1 to 5 carbon atoms, alkoxy of 1 to 2 carbon atoms or nitro.

Abstract: Betainic complex azo dyestuff-cobalt compound consisting essentially of, per molecule:A cobalt atom;One molecule of a colorless tridentate organic ligand which is coordinatively bound to said cobalt atom by way of three nitrogen atoms which is free from ionogenic groups which do not partake in complex formation, each of said nitrogen atoms participating in the formation of a 5- to 6- membered ring of which said cobalt atom is a member; andOne radical of a mono- or dis- azo dyestuff capable of forming a bicyclic metal complex with cobalt and containing one sulphonic acid group, whereby a complex dyestuff-cobalt compound is formed which has the character of an inert salt (betaine), are disclosed. These compounds are useful for the dyeing and/or pigmenting of polymeric and copolymeric organic material, e.g., lacquers, synthetic plastics or spinning masses, as well as for the dyeing of polyamide fibers from weekly acid bath.

Abstract: Chromium complex dyes which, in the form of their free acid, have the formula ##STR1## wherein one X represents the sulphonic acid group and the other X represents the nitro group, Y is a sulfone or sulfonamide group and Z is an acyl group. The dyes are suitable for dyeing natural and synthetic polyamides to produce dyeings which are level and have good fastness to light, perspiration, fulling, decatizing and carbonizing.

Abstract: 1:2 Chromium complex dyes of the formula ##SPC1##Wherein A represents the radical of a diazo component, B represents the radical of a coupling component, --X-- is --O--, --NH--, ##EQU1## --Y-- is --O-- or --COO--, R.sub.1 is hydrogen or alkyl and R.sub.2 is a radical of the benzene or naphthalene class which is substituted by a carboxy or a sulpho group, K.sup.+ represents a cation, and wherein the benzene ring b can carry a further fused benzene ring or can be substituted by halogen, nitro, low molecular alkyl or alkoxy as well as arylazo groups, and the radicals A and B are devoid of --SO.sub.3 H and --COOH groups. These dyes are useful for dyeing and printing natural and synthetic polyamides to produce level dyeings of good fastness, especially fastness to pulling, water and perspiration.

Abstract: Chromium complex dyes of the formula ##SPC1##Wherein one of the symbols X.sub.1, X.sub.2 and X.sub.3 is hydrogen and each of the others is hydrogen, a halogen atom, a nitro group, a methyl or a methoxy group, R is a phenyl radical which is optionally substituted by halogen, low molecular alkoxy, alkyl or nitro and Me.sup.+ is a cation are disclosed; said dyes being useful in dyeing synthetic and natural polyamides to produce dyeings which are level and have good fastness to light, washing, fulling, decatizing and carbonizing.