MELTED POLYESTER DYEING METHOD BY ANTHRAQUINONE DERIVATIVES AND POLYESTER MATERIAL DYED BY SAID PROCESS

摘要

Use of anthraquinone derivatives of the formula IMAGE wherein X is -NH- or -S-, one Y is -NHCOR, R being an alkyl, aryl or heterocyclic residue, the other Y are hydrogen, Z is halogen, and n is 0, 1, 2 or 3, whereby Z may be 1 to 3 halogen bound to aryl and/or anthraquinone nucleus and/or the residue R, for dyeing polyesters in the melt.