| abstract |
Useful thermal transfer dyes are thiazole dyes having the formula ##STR1## where R 1 and R 2 are each, independently of the other, hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted phenyl or cyclohexyl or together with the linking nitrogen atom a heterocyclic radical, n R 3 is hydrogen, halogen, alkyl, substituted or unsubstituted phenyl, benzyl, cyclohexyl, hydroxyl, furyl or thienyl, and n A is a cyclohexadienone radical which may be substituted and/or benzofused. |