| 摘要 |
PURPOSE:To provide a thermal transfer recording medium capable of performing transfer in a low energy level and imparting sharp printing even to rough paper and smooth paper, by forming two adjacent layers from an aqueous disperse composition and setting the thickness of the dry film of the layer near to a support to a specific range. CONSTITUTION:Among two laminated layers having different compositions, a heat- meltable substance is contained in the layer (heat-meltable layer 2) near to a support, and a thermoplastic polymer in the upper layer (thermoplastic layer 3) thereof. As the heat-meltable substance, a substance solid or semisolid at ambient temp. is designated and waxes, higher fatting acid, higher fatty acid ester, a rosin derivative, a synthetic resin, synthetic rubber, etc. having a melting or softening point of 25-120 deg.C are used. The thickness of the heat-meltable layer 2 is 0.5-35mum, pref., 1.7-2.7mum. As the thermoplastic polymer, an acrylic resin is pref. The surface of the constitution layer of a thermal transfer recording medium thus formed is superposed to a recording sheet such as plain paper and energy is applied to both of them in accordance with to image information by a thermal head, a thermal pen or a thermal recording apparatus using laser to transfer a colorant etc. to the recording sheet along with the thermoplastic substance. |
