DYE AND INK COMPOSITION THERMAL TRANSFER RECORDING AND TRANSFER SHEET

摘要

PURPOSE:To obtain a thermal transfer ink compsn. or sheet having a high sublimation speed and image stability after transfer by using a sublimable dye represented by a specific general formula as a thermal transfer recording dye. CONSTITUTION:An ink compsn. for thermal transfer recording containing a thermal transfer recording dye represented by formula I (wherein R1 is H, a 1-8C alkyl group or a cycloalkyl group, R2 is H, a halogen atom or an alkoxy group and R3 is a 3-5C branched alkyl group, an O-substituted oxycarbonyl group or an N-substituted aminocarbonyl group wherein an N-substituent may form a ring), a binder resin and an org. solvent and/or water is prepared. This ink compsn. is applied to one surface of a base sheet and dried to laminate a thermal transfer recording dye supporting layer to obtain a transfer sheet. The dye represented by the formula I is easily adapted to gradation recording and suitable for full color recording.