THERMAL TRANSFER PRINTING

摘要

A thermal transfer printing sheet comprising a substrate having a coating comprising a mixture of dyes of 20-50% of Formula I and of 80-50% of Formula II. <CHEM> wherein: R<1> is C1-12-alkyl; X is halogen; and R<2> is aryl or C1-4-alkyl unsubstituted or substituted by C1-4-alkoxy, C1-4-alkoxy-C1-4-alkoxy or aryl.