abstract |
(57) [Abstract] [Problem] With excellent light fastness, high coloring sensitivity, An object of the present invention is to provide a heat-sensitive recording material having good image quality and good appearance of blank paper, and preventing generation of scum and sticking. SOLUTION: In a thermosensitive recording medium in which an undercoat layer, a thermosensitive coloring layer and a protective layer are sequentially laminated on a support, an opening obtained by cutting a part of hollow polymer particles in a plane in the undercoat layer. A heat-sensitive recording material comprising a hollow polymer particle having the following, an ultraviolet absorber in the undercoat layer and / or the heat-sensitive coloring layer, and a fluorescent dye in the protective layer. |