| 摘要 |
PURPOSE: To obtain a dye-donar for thermal dye transfer comprising a near- infrared absorbing dye requiring no acceptor sheet containing a special substance for dissolving the near-infrared absorbing dye by employing a specified near- infrared absorbing dye having one side dispersed into a polymer binder. CONSTITUTION: A dye-donar for thermal dye transfer has a support provided, on one side thereof, with a near-infrared absorbing dye dispersed into a polymer binder and, on the other side thereof, with a slip layer containing a lubricant. The dye has a structure shown by formula 1, where R<1> -R<4> represents independently a substituted or not substituted alkyl group of 1-10C; a substituted or not substituted aryl group of 6-10C; or a substituted or not substituted heterocycle, or R<1> and R<2> may be bonded to a carbon atom to form a carbon cycle or a heterocycle of 5 or 6 atoms; or R<3> and R<4> may be bonded to a carbon atom to form a carbon cycle or a heterocycle of 5 or 6 atoms. |
