Abstract: Reactive dyes useful for dyeing natural and synthetic fibers of the formula ##STR1## in which D.sub.1 is a benzene or naphthalene radical, which can be substituted, D.sub.2 is a benzene radical, which can be substituted, R.sub.1 is hydrogen or C.sub.1-4 -alkyl, the bridge member --N(R.sub.1)-- is bonded to a ring carbon atom of D.sub.2, R.sub.2 is hydrogen or C.sub.1-4 -alkyl, which can be substituted, and R.sub.3 is hydrogen or substituted or unsubstituted alkyl, cycloalkyl, aralkyl or aryl.

Abstract: Fibre-reactive dyes of the formula ##STR1## wherein X is an alkyl or alkoxy group of 1 to 4 carbon atoms, a carboxy group or a halogen atom, each of R.sub.1 and R.sub.2 is independently a hydrogen atom or an alkyl group of 1 to 4 carbon atoms and D is the radical of an organic dye which contains sulpho groups, and the benzene ring A can contain further substituents apart from X and SO.sub.3 H.

Abstract: A fibre-reactive azo dyestuff of the formula ##STR1## in which X is alkyl or alkoxy with 1 to 4 carbon atoms, carboxyl or halogen, n is 1, 2 or 3, m is 0 or 1, p is 0 or 1 and q is 0 or 1 and the benzene or naphthalene rings A, B and B' can contain further substituents in addition to SO.sub.3 H groups. The dyestuffs of the invention are suitable inter alia, for dyeing and printing silk, leather, wool, high molecular weight polyamide fibres and high molecular weight polyurethanes, but especially cellulose-containing materials having a fibrous structure.

Abstract: Azo dyes of the formula ##STR1## wherein D is a disulfonaphthyl-(2) residue, K is a naphtalene or benzene residue, R is hydrogen, and X is hydrogen, are especially suitable for dyeing of cellulosic materials of fibrous structure, they have a good exhaustion capacity and excellent dye fixation.

Abstract: Dyes of formula ##STR1## wherein D is the radical of a formazane dye of formula ##STR2## X is a group which is capable of complex formation, Z is a --NH.sub.2 group, a substituted or unsubstituted aliphatic or aromatic amino group, n is 1 or 2 and m is an integer from 2 to 5, and the benzene rings A, B and C can contain further substituents in addition to the --SO.sub.

Abstract: Fibre-reactive dyes of the formula ##STR1## wherein D is the radical of a benzene or naphthalene azo dye which contains sulpho groups, each of R.sub.1, R.sub.2 and R.sub.3 is a hydrogen atom, B is an arylene group and A is an amino group.

Abstract: Azo dyestuff sulfonic acid salts of the formula: ##STR1## wherein A represents a carbocyclic or heterocyclic aromatic radical, B represents an aliphatic, cycloaliphatic or araliphatic amine, X represents a hydrogen atom or a substituted or unsubstituted alkyl group, a cycloalkyl, aralkyl or aryl group, Y represents a hydrogen or halogen atom, a nitro, cyano, acyl, sulfonic acid, arylsulfonyl, alkoxycarbonyl group or a substituted or unsubstituted alkyl, sulfamoyl or carbamoyl group, Z represents a substituted or unsubstituted alkyl group or an aryl radical, m and n are 1 or 2; said dyestuffs salts having good solubility in organic solvents and functioning to color solutions of film forming polymers in yellow to orange shades.

Abstract: Dyestuffs of the formula ##STR1## wherein R.sub.1 is hydrogen or a low-molecular alkyl group, R.sub.2 is hydrogen, a low-molecular alkyl group, an aryl radical or the radical of an organic dyestuff containing sulpho groups, and R.sub.1 and R.sub.2 together with the nitrogen atom can form a ring, X.sub.1 and X.sub.2 are hydrogen, a sulpho group or the --N.dbd.N--K radical, wherein K is the radical of a coupling component and, if one X is the --N.dbd.N--K radical, the other X is a sulpho group, and the benzene ring A can contain further substituents.

Abstract: A process for improving the color yield and the wetfastness properties of dyeings produced on cellulose fibre material with anionic dyes, which process comprises treating the cellulose material before, during or after dyeing, with a cationic fibre-reactive compound of the formula ##STR1## wherein B represents a mono- or polynuclear heterocyclic radical,Hal represents a reactive halogen atom,X represents halogen, lower alkoxy, lower alkylthio, phenoxy, phenylthio, --NH.sub.2, ##STR2## or the group of the formula ##STR3## each of W.sub.1 and W.sub.2 independently represents the direct bond, ##STR4## Z represents hydrogen, lower alkyl or hydroxy-lower alkyl, each of Q.sub.1 and Q.sub.2 independently represents an aliphatic or cycloaliphatic radical,each of R.sub.1, R.sub.2, V.sub.1, V.sub.2, Y.sub.1 and Y.sub.2 independently represents lower alkyl, or lower alkyl or benzyl each of which is substituted by halogen, hydroxy or cyano, oreach of the pair of substituents R.sub.1 and R.sub.2 and Y.sub.1 and Y.sub.

Abstract: The invention provides a process for the production of 2,4-difluoro-6-amino-s-triazine, which comprises reacting cyanuric fluoride in aqueous solution with ammonia or an ammonium salt, at a temperature between -5.degree. C. and +10.degree. C. and a pH value between 7.25 and 9.

Abstract: A process for the monoacylation of water-soluble organic amino compounds with 2,4,6-trifluoro-s-triazine, which comprises introducing all reactants simultaneously and continuously in the amounts necessary for the required throughput into the reaction space and removing the resultant reaction products continuously therefrom.

Abstract: A process for improving the color yield and the wetfastness properties of dyeings produced on cellulose fibre material with anionic dyes, which process comprises treating the cellulose material before, during or after dyeing, with a cationic fibre-reactive compound of the formula ##STR1## wherein B represents a mono- or polynuclear heterocyclic radical,Hal represents a reactive halogen atom,X represents halogen, lower alkoxy, lower alkylthio, phenoxy, phenylthio, ##STR2## or the group of the formula ##STR3## each of W.sub.1 and W.sub.2 independently represents the direct bond, ##STR4## Z represents hydrogen, lower alkyl or hydroxy-lower alkyl, each of Q.sub.1 and Q.sub.2 independently represents an aliphatic or cycloaliphatic radical,each ofR.sub.1, R.sub.2, V.sub.1, V.sub.2, Y.sub.1 and Y.sub.2 independently represents lower alkyl, or lower alkyl or benzyl each of which is substituted by halogen, hydroxy or cyano, or each of the pair of substituents R.sub.1 and R.sub.2 and Y.sub.1 and Y.sub.

Abstract: A process for improving the color yield and the wet-fastness properties of dyeings produced on cellulose fibrous material with anionic dyes which process comprises treating the cellulose material before, during or after dyeing, with a fluorine-containing cationic compound of the formula ##STR1## WHEREIN B represents a triazine or pyrimidine radical,W represents a reactive fluorine atom,Z represents halogen, lower alkyl, phenyl, lower alkoxy, lower alkylthio, phenoxy, phenylthio, --NH.sub.2, or the group of the formula ##STR2## EACH OF Ar.sub.1 and Ar.sub.2 independently represents an aromatic radical,Each ofR.sub.1 and R.sub.2 independently represents hydrogen, lower alkyl or hydroxy-lower alkyl,Each ofX, x.sub.1, x.sub.2, y.sub.1, y.sub.2, v.sub.1 and V.sub.2 independently represents lower alkyl, benzyl, or lower alkyl which is substituted by halogen, hydroxyl or cyano, and X also represents phenyl or methylphenyl, orEach of the pair of substituentsX.sub.1 and X.sub.2 and Y.sub.1 and Y.sub.

Abstract: Azo compounds of the formula ##STR1## wherein R is hydrogen, an alkyl or aryl radical and D is the radical of a diazo component are valuable dyestuffs for coloring textile materials.

Abstract: A process for producing solutions of salts of lower aliphatic carboxylic acids of cationic dyestuffs which consists essentially of converting the halide, especially the chloride, of a cationic dyestuff into the salt of a lower aliphatic carboxylic acid by reacting the halide with the corresponding carboxylic acid in the presence of an epoxide compound having a maximum of 12 carbon atoms.

Abstract: Azo compounds of the formula ##STR1## wherein R represents a hydrogen atom, an alkyl or aryl radical, R' represents a hydrogen or halogen atom, a cyano, carboxylic amide, alkylsulphonyl, arylsulphonyl, nitro, nitroso, amino, or acylamino group, and D represents the radical of a diazo component, are valuable dyestuffs for the dyeing of textile materials.

Abstract: Azo dyes of the formula ##STR1## wherein each of D.sub.1 and D.sub.2 is a radical of a diazo component which contains at least one heterocyclic fiber-reactive radical and D.sub.1 and D.sub.2 together contain at least two water-solubilizing groups, and Y is the radical of an at least bifunctional acyl compound.

Abstract: Azo dyestuffs which contain an acid substituent which confers solubility in water of the formula ##STR1## wherein D is the radical of a sulfo substituted benzene or naphthalene diazo component;R' is alkyl of 1 to 4 carbon atoms;Z is a fiber reactive group; andN is an integer of 1 to 4 are disclosed and are useful in dyeing nitrogen containing fibers such as polyamides, polyurethanes, silk, leather and wool as well as cellulose materials, in particular cotton.

Abstract: Tetrareactive disazo dyestuffs of the formula ##STR1## wherein D represents a benzene radical containing at least one sulpho group; K represents a radical of 1-amino(or aminobenzoylamino)-8-naphthol-3,6-disulphonic acid, of 1-amino(or aminobenzoylamino)-8-naphthol-4,6-disulphonic acid, of 2-amino(or aminobenzoylamino)-5-naphthol-7-sulphonic acid, of 2-amino(or aminobenzoylamino)-8-naphthol-6-sulphonic acid, of 2-amino(or aminobenzoylamino)-5-naphthol-1,7-disulphonic acid, or of 2-amino(or aminobenzoylamino)-8-naphthol-3,6-disulphonic acid; B represents an aliphatic or aromatic radical; R.sub.1, R.sub.2 and R.sub.

Abstract: An azo dyestuff of the formula ##STR1## in which D is benzene or naphthalene, optionally substituted by sulfonic acid, carboxy, hydroxy, halogen, nitro, amino, lower alkylamino, lower alkyl, lower alkoxy, lower alkylsulfonyl, trifluoromethyl, cyano, cyclohexyloxycarbonyl, sulfonic acid-N-lower alkylamide, sulfonic acid N-lower alkoxy-loweralkylamide, lower acylamino, phenylazo, sulfophenylazo, sulfonaphthylazo, .beta.-sulfatoethylsulfonyl, .beta.