| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat-sensitive recording body in which whiteness of a heat-sensitive paper is high and color development of a white paper part in environmental resistance tests is suppressed and long-term storing stability of a color developed image such as oil resistance and plasticizer resistance is excellent and sensitivity is high. SOLUTION: In the heat-sensitive recording body with a sheet-like base and a heat-sensitive color developing layer formed on at least one face of the base and containing a colorless or light-colored dye precursor and a color developer reacting with this dye precursor under heating and developing its color, the heat-sensitive recording body is characterized by incorporating at least one compound selected from compounds expressed by formula (1) as the color developer. |
