Disazo dyes having a benzthiazolyl substituted phenol or naphthol coupling component

摘要

Disazo dyes containing a benzthiazolyl group and corresponding to the general formula: <IMAGE> in which A and G are optionally substituted phenyl or naphthyl, D is derived from an optionally substituted salicylaldehyde or o-hydroxy-naphthaldehyde and E is derived from an optionally substituted o-aminothiophenol are provided. Metal modified polypropylene dyed with the disazo dye has excellent fastness properties.