Process for the dyeing of cellulose-containing fibre...

Details Process for the dyeing of cellulose-containing fibre... Process for the dyeing of cellulose-containing fibre...

D - Textiles, Paper

06

P

D06P 3/66 (2006.01) C09B 67/22 (2006.01)

Patent

CA 2129750

A process for the dyeing of cellulose-containing fibre materials with reactive dyes, which comprises carrying out dyeing in the presence of the salt of a mineral acid in an amount of 0 to 20 g per litre of dyebath and using at least one of the reactive dyes of formulae (I) and (II) in which the substituents are as defined in 'claim 1. This produces dyeings having good fastness properties in a high coloristic yield. Moreover, the addition of fairly large amounts of salts of a mineral acid, which is a common practice in dyeing, can be omitted.

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