| 摘要 |
PURPOSE:To enhance recording density on a printing sheet and to improve the light exposure properties of a recording image by providing a colorant layer containing cyan dye represented by a specific formula on one side face of a base film to form a heat transfer sheet. CONSTITUTION:Dye represented by a formula I (where R<1>, R<2> are halogen atom, alkyl group, R<3> is H, alkyl group, etc., R<4>, R<5> are alkyl group, aralkyl group, alkenyl group, aryl group, halogenoalkyl group, alkoxyalkyl group, etc., a formula II represents a formula III, etc.), binder, various additives, as required are dissolved or dispersed in solvent by a ball mill, etc., to prepare ink. One side face of a base film made of condenser sheet, polyimide resin, etc., is coated with the ink, dried to form a colorant layer, and a heat transfer sheet is manufactured. |
