Ciba-geigy Corporation

Ciba-geigy Ag

Gert Hegar

Herbert Seiler

Henri Riat

Ulrich Horn

Pierre Perrin

Gerald Siegrist

Karl Seitz

Gerhard Back

Visvanathan Ramanathan

Paul Lienhard

Hans U Schutz

Hans-Joerg Angliker

Sandor Gati

Angelo Della Casa

Rene De Montmollin

Fritz Oesterlein

Walter Lang

Fritz Altorfer

Ester Hegar-Zimmerman

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.

Amino-fluoro-S-triazine disazo dyes of the H-acid series

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.

Azo dye of the pyridone series containing a fluoro-s-triazinyl

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.

Fibre-reactive azo dyes containing a monofluororotriazine group

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.

Fiber-reactive fluoro-triazine containing dyestuff

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.3 H groups and the radicals of formula ##STR3##

Heavy metal-containing formazane dyes containing a fiber-reactive

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.

Fibre-reactive dyes, containing both chloro and fluoro triazine radicals

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.

Amine salts of azo dyestuffs of the pyridone series

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.

Reactive dyestuffs, their manufacture and use

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,

Process for improving the color yield and fastness properties of dyeings

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.

Production of 2,4-difluoro-6-amino-s-triazine

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.

Process for monoacylating water-soluble organic amino compounds

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,

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.

Azo compounds having a 3-sulphomethyl-pyrazolone-(5) coupler component

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.

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Schonenbuch, Switzerland

Gert Hegar