Ciba-geigy Corporation

Marielise Pacher

Stefan Koller

Hans-Ulrich Berendt

Arnulf Ruediger Lapple

Karl Emmenegger

Dyed fibrous materials made of or containing cellulose which were not bleached before dyeing are aftertreated in a combined bleaching and washing bath which can, optionally, contain as stabilizers derivatives of phosphonic or phosphorous acid, optionally as a combination with polyhydroxy compounds. The resulting materials have bright and brilliant shades. This aftertreatment makes it possible to by-pass the otherwise customary, time-consuming and expensive drying of the materials between a bleach before dyeing and the dyeing itself.

Process for aftertreating dyed fibrous material made of or containing

A process for dyeing and printing blends of wool and polyester fibres 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. The process yields tone-in-tone dyeings.

Process for dyeing blended fabrics

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.

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Munchenstein, Switzerland

Marielise Pacher