| abstract |
A heat-sensitive sublimation transfer cyan dye represented by general formula (I), wherein R1? is a hydrogen atom, an alkyl group, an alkoxy group, an alkylcarbonylamino group, a formylamino group or a halogen atom and R2? and R3? are each an alkyl group, an alkenyl group, an alkoxyalkyl group, an aralkyl group, an aryl group, a halogenoalkyl group or a cyanoalkyl group, provided that they may be combined to each other to form a ring, and X is any one of groups (a), (b) and (c), and a heat-sensitive sublimation transfer sheet comprising at least one of said dyes. |