公开(公告)号：FR2711664A1

公开(公告)日：1995-05-05

申请号：FR9412614

申请日：1994-10-21

Applicant: BASF AG

Inventor： MATTHIAS NIEDENBRUECK ,  MICHAEL PATSCH MANFREDSCHMITT

IPC: C09B3/80 ,  C07C49/697 ,  C09B3/30 ,  D06P1/24 ,  D06P3/60 ,  C09B3/22

Abstract: Vat dyes obtainable by a) halogenation of dibenzanthrone with bromine in the presence of chlorosulfonic acid and of a halogenation catalyst to a bromine content from 26 to 32% by weight and a chlorine content from 1 to 5% by weight, and b) condensation of the isolated halogenation product with 1-aminoanthraquinone in a molar ratio from 1:2 to 1:2.5 in the presence of an inert solvent, the concentration of halogenated dibenzanthrone and 1-aminoanthraquinone together being at least 200 g/l of solvent are useful for dyeing or printing cellulose-containing textile material.