Bayer Aktiengesellschaft

Bayeraktiengesellschaft

Joachim Grutze

Joachim Wolff

Dietrich Hildebrand

Max Schwarz

Frank-Michael Stohr

Frank M Stohr

Manfred Hoppe

Josef-Walter Stawitz

Ulrich Beck

Martin Riegels

Reinhard Preuss

Hellmuth Pantke

Johannes Haas

Rolf Schulz

Karl Vogel

Friedhelm Buse

Manfred Hobohm

Improved dyeings or prints on cellulose, regenerated cellulose and/or mixtures of cellulose with natural or synthetic fiber materials using one or more reactive and/or direct dyes are obtained in the presence of a lithium compound.

Lithium-containing assistants for dyeing and printing of cellulosic

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

Improved reactive dyestuff red mixtures comprise in each case at least one component of the formula 1 ##STR1## and one component of the formula 2 ##STR2## wherein the substituents have the meaning given in the description.

Reactive dyestuff red mixture

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

A phthalocyanine reactive dyestuff mixture having an improved dyeing levelness and combination properties comprises at least one phthalocyanine vinylsulphonyl reactive dyestuff 1, at least one phthalocyanine fluorochloropyrimidinyl reactive dyestuff 2 and/or a phthalocyanine monochlorotriazinyl reactive dyestuff 3.

Phthalocyanine reactive dyestuff mixture

New dyestuff mixtures contain in each case at least one fluoropyrimidine dyestuff of the general formula (I) ##STR1## and a vinylsulfonyl dyestuff of the formula (II) ##STR2## in which the substituents have the meaning given in the description.

An improved aqueous dyestuff preparation which is suitable for the dyeing or printing of substrates contains a water-soluble lithium compound and an alkali, in particular sodium hydroxide.

Aqueous dyestuff preparation: lithium bicarbonate and reactive dye

The light fastness of polyamide dyeings can be improved by treating polyamide fibre materials, before, during or after dyeing, with copper complexes of the reaction products of salicylaldehydes with amines (for example cyclohexylamine), or with copper complexes of o-hydroxybenzophenones.

Growing community of inventors

Odenthal, Germany

Joachim Grutze