Ciba-geigy Corporation

Ciba-geigy Ag

Arnulf Ruediger Lapple

Raymond Defago

Stefan Koller

Carl Becker

Bernard Hugelin

Alex Nicopoulos

Paul Erzinger

Marielise Pacher

Paul Schaffluetzel

A novel liquid preparation containing a mixture of dyes according to claim 1, an aliphatic carboxylic acid, and optionally water and organic solvents. This novel preparation is storage-stable and temperature-stable and can be used in particular for dyeing polyacrylonitrile materials in black shades, the dyeings obtained having a neutral shade, negligible change of shade in artificial light and very good fastness to light.

Liquid preparation of cationic dye mixture containing aliphatic

A preparation containing a mixture of dyes for dyeing polyacrylonitrile materials in navy blue to black shades, the dyeings obtained being distinguished in particular by a very good fastness to light.

Solid dye mixtures for dyeing polyacrylonitrile navy blue to black

In a dry heat process for dyeing and printing of organic material which can be dyed with cationic dyestuffs, the improvement wherein at least one transferable salt of a cationic dyestuff with an acid having a pK.sub.s value greater than 3 is used for dyeing and printing.

Dry heat process for dyeing and printing organic material which can be

Object of the present invention are novel printing inks with organic solvents for sublimation transfer printing which contain a high concentration of very finely dispersed, transferable cationic dyes, and specifically;

Novel printing inks for sublimation transfer printing

A process for dyeing and printing blends of wool and polyacrylic fibers which comprises the use of dyes of the formula ##STR1## wherein A is the radical of a monofunctional or polyfunctional tertiary amine, X is an anion and F is the radical of a dye of the disperse class.

Growing community of inventors

Arlesheim, Switzerland

Arnulf Ruediger Lapple