Dye-donor element for use in thermal dye sublimation transfer

摘要

Dye-donor element for use according to thermal dye sublimation transfer, said dye-donor element comprising a support provided with a dye layer containing a dye dispersed in a polymeric binder, characterized in that said dye corresponds to the following formula (I) (I) wherein R1, R2 and R3 independently represent hydrogen, halogen, nitro, an alkyl group, a cycloalkyl group, an aryl group, an alkoxy group, an aryloxy group, a alkylthio group, a arylthio group, an acylamino group, a sulfamoyl group, a carbamoyl group, which groups may be substituted, or R2 and R3 together can form a saturated or aromatic or heterocyclic ring fused-on the cyclohexadiene ring, which ring may be substituted; B represents wherein R4-R11 are defined in the specification; K represents wherein: R12 and R13 (independently) represent hydrogen, an alkyl group, an aryl group, a heterocyclic group, which groups may be substituted, or R12 and R13 together represent the necessary atoms to close a heterocyclic ring, which ring may be substituted, or R12 and/or R13 together with R14 and/or R17 represent the necessary atoms to close a ring fused-on the benzene ring, which ring may be substituted; R14, R15, R16 and R17 are defined in the specification.