Process for dyeing and printing cellulose fibres
AssigneeBayer Aktiengesellschaft
InventorsRutger Neeff, Robert Kuth, Werner Kuhnel, Wilhelm Gohrbandt
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Abstract
In order to dye and print cellulose fibres, which have been swollen with water-miscible swelling agents, or fibre mixtures containing such cellulose fibres, the fibres are treated with a dyestuff of the general formula ##STR1## wherein A denotes an optionally substituted anthraquinone radical, which can contain a further fused ring, X denotes oxygen or sulphur, Z denotes a mononuclear or binuclear aryl radical and n denotes 1 or 2, and the dyestuff is fixed by means of a heat treatment.
Claims1
Process for dyeing and printing cellulose fibres, or fibre mixtures containing cellulose fibres, which have been swollen with water-miscible swelling agents capable of maintaining the fibres in swollen condition after removal of water and boiling above 150.degree. C., characterized in that the fibres are treated with a dyestuff of the general formula ##STR25## wherein R.sub.5 is hydrogen, a hydroxyl or cyclohexyl group or a phenylamino or benzoylamino group, which can be substituted in the phenyl ring by halogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy,
- and the dyestuff is fixed by means of a heat treatment.
Dependencies are inferred from the claim text.