公开(公告)号：EP0629249B1

公开(公告)日：1997-01-08

申请号：EP93905272.6

申请日：1993-02-24

申请人： Ciba SC Holding AG

发明人： LANDRE, Jean-François ,  TZIKAS, Athanassios ,  LUTTRINGER, Jean, Pierre

IPC分类号： D06P3/66 ,  C09B62/04 ,  C09B62/008 ,  C09B62/44

CPC分类号： D06P3/663 ,  C09B67/0041 ,  C09B67/0046 ,  Y10S8/918

摘要： 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.