| abstract |
The present invention relates to a heat-sensitive recording sheet which comprises a support, an undercoat layer provided on said support and a heat-sensitive color forming layer provided on said undercoat layer, said heat-sensitive color fomring layer containing a colorless or palely colored dye precursor, a developer which reacts with said dye precursor upon application of heat to cause said dye precursor to form color, N-methylolbehenic acid amide, and at least one sensitivity enhancing agent. This heat-sensitive recording sheet is excellent in heat responsiveness, high in sensitivity and superior in mechanical matching properties. |