| 摘要 |
PROBLEM TO BE SOLVED: To provide a cyanogen coloring matter donor for transferring heat- sensitive coloring matter containing a coloring matter mixture for improving the accuracy of color proofing. SOLUTION: A cyanogen coloring matter donor element for transferring heat-sensitive coloring matter in formed of a substrate with a coloring element layer in which a cyanogen coloring matter mixture is dispersed in a polymer binder, and the cyanogen coloring matter is represented by a formula I and another kind of cyanogen coloring matter is represented by a formula II. In the formulas, R<1> and R<2> represent respectively and independently hydrogen, 1-6C alkyl, substituted or not substituted, and 5-7C cycloalkyl, substituted or not substituted, or allyl, substituted or not substituted. R<8> and R<9> represent hydrogen respectively and independently, 1-8C alkyl and 5-8C cycloalkyl or 2-9C alkenyl, substituted or not substituted. |
