| 摘要 |
PURPOSE:To enhance the preservability of a developed color image and thermal response, in the material wherein a specific compd. is added to a recording layer, by supporting a fluorane compd. represented by a predetermined formula and a phenol derivative on a support. CONSTITUTION:A carbonyl compd. having a hydrogen atom at its a-position and an imino compd. represented by formula I [wherein X is an aromatic compd. residue or heterocyclic compd. residue capable of forming a conjugated system along with C=NH, Y is O, NH or OR2 (wherein R2 is a 1-4C alkyl group), R<1> and R<2> are a halogen atom or an alkyl group and the sum of p and q is an integer of 0-6] are added to a recording layer. Further, a fluorane compd. represented by formula II (wherein <3>R and R<4> are independently a 1-6C alkyl group or the like, R<5> is a hydrogen atom or a 1-4C alkyl group and R and R are a hydrogen atom, a halogen atom or a 1-4C alkyl group) and a phenol derivative are supported on the support. |
