| 摘要 |
PROBLEM TO BE SOLVED: To eliminate a decrease in a density of a recorded part without completely color developing a skin even the part is brought into contact with a high temperature heater having 120 deg.C or higher by incorporating a specific diphenylsulfone derivative as an electron acceptive compound and incorporating a specific salicylamide derivative as an additive. SOLUTION: The heat-sensitive recording material comprises a diphenylsulfone derivative represented by formula I (R1 and R2 are each an alkyl group, alkenyl group, aralkyl group, an alkoxy group, or a benzyloxy group, m is an integer of 1 to 3, n is an integer of 0 to 2, and x, y are each an integer of 0 to 2.) as an electron acceptive compound and a salicylamide derivative represented by formula II (R3 is a hydrogen atom, an alkyl group, alkenyl group, aralkyl group, aryl group, halogenated alkyl group, alkoxyaryl group or the like) as an additive. |
