Process for dyeing or printing cellulosic fibre materials and novel reactive dyes
AssigneeCiba Specialty Chemicals Corporation
InventorsEdmond Ruhlmann, Athanassios Tzikas, Herbert Klier
Life of this patent
Estimating the term…
Abstract
A process for dyeing or printing cellulosic fiber materials, which comprises using at least one reactive dye of formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each independently of one another hydrogen, halogen, sulfo, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy, R.sub.5 and R.sub.6 are each independently of the other hydrogen, halogen, C.sub.1 -C.sub.4 alkyl, C.sub.2 -C.sub.4 alkanoylamino, ureido, or C.sub.1 -C.sub.4 alkoxy which is unsubstituted or substituted in the alkyl moiety by hydroxyl, sulfato or C.sub.1 -C.sub.4 alkoxy, Z.sub.1 and Z.sub.2 are each independently of the other vinyl or the radical --CH.sub.2 --CH.sub.2 --U, and U is a leaving group.
Claims6
A process for dyeing or printing cellulosic fibre materials, which comprises dyeing with at least one reactive dye of the formula ##STR23## wherein R.sub.1 is hydrogen or sulfo,
- R.sub.5 is --O--CH.sub.2 CH.sub.2 --OH or --O--CH.sub.2 CH.sub.2 --OSO.sub.3 H,
- R.sub.6 is C.sub.1 -C.sub.4 alkyl,
- Z.sub.1 and Z.sub.2 are each independently of the other vinyl or the radical --CH.sub.2 --CH.sub.2 --U, and
- U is a radical --OSO.sub.3 H.
Dependencies are inferred from the claim text.