| abstract |
(57) [Summary] [Object] An object of the present invention is to provide a heat-sensitive recording material having excellent adhesion and water resistance. A heat-sensitive recording material comprising a support and a heat-sensitive recording layer having a color former and a color-forming agent, which are colored by coming into contact with each other by heat, and an undercoat layer provided between the support and the heat-sensitive recording layer. , A thermosensitive recording medium comprising a thermosensitive recording layer, or at least one protective layer provided on the thermosensitive recording layer, containing a polymer emulsion containing an oxazolyl group. |