Bayer Aktiengesellschaft

Frank-Michael Stohr

Karl-Josef Herd

Hermann Henk

Manfred Hoppe

Peter Wild

Joachim Wolff

Horst Nickel

Karl-Heinz Schundehutte

Horst Jager

Dietrich Hildebrand

Joachim Grutze

Max Schwarz

Klaus Kunde

Josef-Walter Stawitz

Karin Hassenruck

Rolf Brockmann

Martin Michna

Wolfgang Mullers

Hans-Georg Frosch

Karl-Heinz Schundehutte, Deceased

Wolfgang Harms

Karl H Schundehutte

Stefan Ehrenberg

Manfred Groll

Ulrich Beck

Karl J Herd

Thomas Eizenhofer

Wilfried Hansmann

Karl K Schundehutte

Azo reactive dyestuffs have the following formula

Polyfunctional azo reactive dyestuffs

Compounds of the formula (I) ##STR1## have been found which are suitable for dyeing and printing hydroxyl- and/or amido-containing substrates, in particular for printing paper by the ink-jet method.

Tetrazo dyestuffs

Process for preparing 2,4,6-trichloropyrimidine, characterized in that, in a first reaction step, barbituric acid is reacted, optionally in the presence of a catalyst, with phosphorus oxychloride and subsequently, in a second reaction step, with phosphorus pentachloride or with reactants forming the latter, in particular phosphorus trichloride and chlorine.

Process for preparing 2,4,6-trichloropyrimidine

Dyestuffs of the formula (I) ##STR1## wherein R.sup.1 and R.sup.4 independently of one another represent an acyl radical,

Direct disazo dyestuffs

New azo dyestuffs of the formula (I) ##STR1## wherein n in each case independently of one another represents 0 or 1,

Azo dyestuffs for dyeing and printing cellulose-containing fiber

Reactive dyestuffs of the formula ##STR1## in which the substituents have the meanings given in the description are highly suitable for the dyeing and printing of cellulose materials and nitrogen-containing materials. They produce dyeings and prints having good wet and light fastness properties.

Reactive dyestuffs

An improved reactive dyestuff mixture comprises at least one monochlorotriazine dyestuff 1 and at least one monofluorotriazine dyestuff 2 and/or fluorochloropyrimidine dyestuff 3, and if appropriate additional dyestuffs having the formulae given in the description.

Reactive dyestuff mixture having improved properties in combination

The yield and purity of the condensate obtained in the reaction of cyanuric fluoride with an aqueous amine solution is improved by introducing the reactants into a reactor (1) at a differential rate which results in intensive mixing and substantially completing the reaction in the reactor (1) with no back-mixing, the reactor (1) preferably being a tube (1) into which one nozzle (2) opens axially and one or more nozzle(s) (4) open(s) concentrically thereto.

Process for the continuous reaction of cyanuric fluoride with amines and

A reactive dyestuff mixture showing improved compatibility contains at least one vinylsulphonyltriazine dyestuff 1, at least one monofluorotriazine dyestuff 2 or fluorochloropyrimidine dyestuff 3 together with, if desired, additional dyestuffs.

Reactive dyestuff mixture

Improved reactive dyestuff mixtures comprise a reactive dyestuff of the formula (I) ##STR1## and a chlorotriazine dyestuff of the formula ##STR2## wherein the substituents have the meaning given in the description.

Reactive dyestuff mixtures

New reactive dyestuffs which, in the form of the free acid, correspond to the following formula ##STR1## wherein the substituents have the meaning given in the description, are suitable for dyeing and printing materials containing hydroxyl groups or amide groups, in particular cellulose materials.

2,4-diamino-6-fluorotriazine diazo reactive dyestuffs

Solid dyestuff preparations of reactive phthalocyanine dyestuffs of the formula ##STR1## in which the substituents have the meaning given in the description, have improved solubility in water if they contain 5 to 15% by weight of an acid-binding agent.

Solid dyestuff preparations having improved water solubility

Dyestuff of the formula ##STR1## wherein FB=the radical of a dyestuff

Polyfunctional fibre-reactive dyestuffs

Reactive dyestuffs of the formula ##STR1## in which ##STR2## and Z=a heterocyclic reactive group and the remaining groups have the meaning indicated in the description, are outstandingly suitable for dyeing and printing materials containing hydroxyl groups or amide groups.

The reactive dyes of the formula ##STR1## in which the substituents and indices have the meaning given in the description, are outstandingly suitable for dyeing or printing naturally occurring or synthetic materials containing hydroxyl or amide groups.

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Odenthal, Germany

Frank-Michael Stohr