| 摘要 |
PURPOSE: To improve a transfer concentration (transfer efficiency) by forming an infrared absorbing substance of a dye-donor element for a laser-induced dye thermal transfer of a quinoid dye derived from an anthraquinone or naphthoquinone having a specific structure, and existing it in a dye layer, thereby making a dye transfer uniform. CONSTITUTION: The dye-donor element for a laser-induced thermal dye transfer comprises a support having thereon a dye layer which also contains an infrared- absorbing material which is different from the dye, and wherein the infrared- absorbing material is a quinoid dye derived from an anthraquinone or naphthoquinone having a structure represented by a formula. The dye is executed in a concentration of 0.05 to 0.5 g/m<2> in the dye layer. The dye in the donor element is preferably dispersed in a polymer binder. In the formula, Z is atoms necessary to complete a 5- to 7-membered subsituted or unsubstituted carbocyclic or heterocyclic ring, each R independently is a hydrogen, a substituted or unsubstituted alkyl or alkoxy group having from 1 to bout 6 carbon atoms, or an aryl or hetaryl group having from about 5 to about 10 atoms (m) is 4, and (n) is 2. |
