FLUORANTHENE VAT DYES AND PROCESS FOR THEIR PREPARATION

摘要

1. A vat dye based on a condensed reaction product of monobromofluoranthene which contains not more than 7% of dibromofluoranthene with 1-amino-4-benzoylaminoanthraquinone, obtainable by carrying out the condensation of the reaction product to give the carbazole compound at from 50 to 70 degrees C in 83-88% strength sulfuric acid and, after the conversion to the carbazole compound, effecting further bromination to a bromine content of from 20 to 23% by weight.