Ciba-Geigy Corporation

Wolfgang Sutterlin

Raymond Defago

Andres Schaub

Rainer Begrich

Paul Schafflutzel

Hanspeter Hermann

Rolf Bitterli

A process for dyeing or printing cellulosic fibre material with reactive dyes, which comprises dyeing or printing said material with at least one reactive dye that contains a chlorotriazinyl radical, and washing off the dyeing or print so obtained with an aqueous solution to which at least 0.01 gram per liter of an alkaline earth metal salt has been added. Dyeings and prints of good fastness properties are obtained.

Process for dyeing or printing cellulosic fiber materials

There is disclosed a process for printing cellulosic textile material with reactive dyes which contain at least one monohalotriazine radical, which process comprises printing said material, without the addition of urea, in a single step and wetting the dried printed goods with water for the fixation step. The novel process gives level and deep prints of excellent appearance without the use of urea.

Process for printing cellulosic textile material with reactive dyes:

There is disclosed a process for aftertreating cellulose and cellulosic materials printed with reactive dyes by treating said printed material with an aqueous liquor that contains at least one cationic assistant, at least one amphoteric and/or at least one cationic fluorescent whitening agent. The prints so obtained have very good washfastness, especially very good wetfastness, and the required degree of whiteness.

Process for aftertreating cellulosic materials printed with reactive dyes

The invention relates to a process for dyeing or printing textile fibre materials in stable shades with reactive dyes which produce grey or black dyeings or prints, which process comprises dyeing or printing textile fibre materials with a mixture of heavy metal-containing, water-soluble reactive dyes which produce grey or black dyeings or prints, each component of which mixture, under identical dyeing, printing and fixation conditions, produces dyeings or prints with a tinge different from the tinge of the dyeings or prints produced by the other component, and carrying out subsequent fixation.

Process for dyeing or printing textile fibre materials in stable black

The invention relates to a structurally viscous thickener which contains a copolymer of acrylic acid and acrylamide, a polyacrylic acid and optionally a solvent, emulsifiers, a neutralizing agent and a deaerator as additional components. The thickener may be in the form of a water-in-oil emulsion and is particularly suitable for use in printing pastes for dyeing and printing fibre material, especially textile fabrics.

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Lorrach-Haagen, Germany

Wolfgang Sutterlin