| 摘要 |
PROBLEM TO BE SOLVED: To provide a very useful heat sensitive recording material, which is remarkably excellent in color developing sensitivity and, at the same time, has high storage stabilities of a ground part and of an image part, especially, heat resistance and moisture resistance by a method wherein a specific developer is combined with a sensitizer. SOLUTION: This heat sensitive recording material includes at least one kind of a compound represented by general formula (1) as the sensitizer and, at the same time, at least one kind of a compound represented by general formula (2) as the developer (wherein, R1 to R3 are each may be one and the same or different from one another and a hydrogen atom, a halogen atom, a 1-6C alkyl group, an alkoxyl group, a nitro group or an aryl group; R1 and R2 may well form an aromatic ring; R4 is a hydrogen atom or a methyl group). |
