Sandoz Gmbh

Clariant Finance (bvi) Limited

Helmut A Moser

Roland Wald

Paul Doswald

Emil J Moriconi

Horst Schmid

Manfred Greve

Reinhard Pedrazzi

Gunther Auerbach

Markus Gisler

Werner Koch

Hans R Von Tobel

Tibor Robinson

Jacky Dore

Georg Schoefberger

August Schweizer

Alfred Frei

Kurt Brenneisen

Markus Doerr

Jurgen Geiwiz

Markus Dorr

Basic azo compounds of formula I are suitable for coloring or printing especially of paper and leather.

Basic azo compounds, their production and use

The invention relates to cationically bridged tetrakisazo compounds, corresponding to formula I, ##STR1## wherein the individual symbols are defined as in claim 1, as well as residues and liquid preparations thereof. The compounds and their preparations are used for dyeing and printing hydroxy-group-containing or nitrogen-containing organic substrates by a known method. Preferred substrates are textile materials which consist of or contain cellulose, especially cotton, or also bast fibres, leather and preferably paper or paper pulp products, especially wood-containing paper.

Cationically bridged tetrakisazo dyestuffs with variable couplers, their

Dyes containing 5-cyano-2,4 or 4,6-dichloropyrimidyl fiber-reactive

Metal-free compounds of the formula ##STR1## and 1:1 and 1:2 metal complexes thereof and acid addition salts of such metal-free compounds and 1:1 and 1:2 metal complexes, wherein

The use of metal-free sulfo group free basic disazo compounds containing

Metal-free compounds of the formula ##STR1## a 1:1 or 1:2 metal complex of a metallizable compound of said formula or a salt of a metal-free compound of said formula or of a 1:1 or 1:2 metal complex thereof each cation of which is independently a non-chromophoric cation, or a mixture, thereof, wherein

Dyes having one or two 2,4- or 4,6-dichloro-5-cyanopyrimidyl groups

Compounds of the formulae ##STR1## salts thereof, and mixtures of such compounds or salts,

Phthalocyanine azo dyes containing 5-cyano-dichloropyrimidyl group

Compounds of the formula ##STR1## and mixtures thereof, wherein

Dyes containing two phthalocyanine groups linked by a radical containing

Compounds of the formula ##STR1## wherein each A is independently linear or branched C.sub.2-6 alkylene or linear or branched C.sub.3-6 alkylene substituted by hydroxy,

Azo compounds containing two 6-hydroxypyrid-2-one coupling component

Compounds of the formula ##STR1## and acid addition salts thereof wherein

Dyes containing 6-hydroxypyrid-2-one groups the 1-positions of which

(i) Metal-free compounds of the formula ##STR1## These compounds are useful as dyes for paper and textiles.

Metal-free sulfo group-free basis disazo and trisazo compounds

Disazo and trisazo compounds free of sulfo groups which contain 6-hydroxy-4-methyl-3-N-pyridiniumpyridone-2 coupling component radicals, the preferred compounds being of the formula ##STR1## wherein R is a tetrazo component radical,

Biscationic disazo and trisazo compounds having optionally further

Compounds of the formula ##STR1## 1:1 and 1:2 metal complexes thereof, salts of such compounds and metal complexes and mixture thereof, wherein

Metal-free disazo and polyazo compounds having at least one

Compounds of the formula ##STR1## and water-soluble salts thereof each cation of which is independently a non-chromophoric cation, wherein

Sulfo group-containing metal phlhalocyanine azo compound having a

Compounds of the formula ##STR1## and salts thereof, useful for dyeing and printing hydroxy group - or nitrogen-containing organic substrates, for example, leather and fibrous materials containing or consisting of natural or synthetic polyamides or natural or regenerated cellulose; preferably textile material containing or consisting of cotton which is preferably dyed using the exhaust dyeing method.

Monoazo compounds having a

Metal-free compounds of the formula ##STR1## 1:1 and 1:2 metal complexes thereof, and acid addition salts of metal-free compounds of said formula and 1:1 and 1:2 metal complexes thereof, wherein

Growing community of inventors

Oberwil, Switzerland

Helmut A Moser