| abstract |
A thermally sensitive recording medium comprising a substantial layer containing a pigment and a binder as a main component, a colorless to pale basic colorless dye, and a thermal recording layer containing, as a main component, a colorant which reacts and develops with the basic colorless dye. The undercoat contains a repair agent, and as a pigment, the oil absorption (based on JIS K 5101 method) contains a pigment of 80 ㏄ / 100 g to 120 ㏄ / 100 g, and further has a solid concentration of 25 to 45%, Since the water quality (AA dehydration amount) is 350 g / m 2 or less, a thermally sensitive recording medium having good image quality is provided. |