Polymeric material mass-dyed with certain metalized bis-azomethine dyestuffs

摘要

Disclosed is a mass-dyed polymeric material, e.g. polyester, comprising, as dyestuff, a compound or mixture of compounds of formula I <IMAGE> I herein the nuclei A, B and D may bear one or more substituents and Me is Ni or Cu. The mass-dyed polymeric material is preferably prepared by incorporating the compounds of formula I in form of a master-batch.