摘要 |
PURPOSE: To improve donor storage stability by using compounds denoted by specific general formulas for cyan, magenta and yellow dyes in a dye mixture. CONSTITUTION: A mixture of at least each one kind of cyan, magenta, and yellow dyes dispersed in a polymeric binder is carried on a support, and is made to be a desired black dye donor element for thermal dye transfer. The cyan, yellow and magenta dyes are denoted by formulas I, II and III, respectively, where R<1> and R<2> are each hydrogen or the like, R<3> is acyloxy or the like, (m) is an integer of 0 to 4, R<4> and R<5> are each hydrogen or the like, R<6> is hetaryl group or the like, R<8> is the same group as R<1> , R<9> and R<10> are each acyloxy or the like, R<11> is the same group as R<1> , G is aryl group or the like, X is S or the like, Y is an atom necessary for completing a five- or six- membered ring, R<15> is aryl group or the like, Q is alkoxy or the like, R<16> is one of the groups of R<15> or the like, J is halogen or the like, R<17> is aryl group or the like, and R<20> is cyano or the like. |