THERMAL TRANSFER PRINTING

摘要

A thermal transfer printing sheet suitable for use in a thermal transfer printing process, comprising a substrate having a coating comprising a binder and an anthraquinone of the Formula I: or a mixture of an anthraquinone dye of the Formula I and a disazo dye of Formula II: A - N = N - B - N = N - E II wherein: Z is hydrogen or an optionally substituted aliphatic or an optionally substituted aryl radical; A is the residue of a diazotisable phenylamino or naphthylamine, A-NH2, carrying no more than one unsaturated electron-withdrawing group; B is an optionally substituted thiophen-2,5-ylene or thiazol-2,5-xylene; and E is the residue of an aromatic coupling component E-X wherein X is an atom or group displaceable by a diazotised aromatic amine.