| 摘要 |
PURPOSE:To provide multiple thermal recording material and a lower sheet material for the material in which a plurality of excellent recording images can be simultaneously obtained. CONSTITUTION:A multiple thermal recording material comprises a heat sensitive recording layer containing a combination of substantially two or more colorless or pale color developing components to be color-developed in contact at the time of heating on a surface of a support, an upper sheet thermal recording material having a heat-fusible transfer layer containing electron donative dye precursor as a main ingredient on a rear surface, a lower sheet material having an acceptor layer containing a developer and a sensitizer as main ingredients on a surface of the other support in such a manner that the upper sheet material and the lower sheet material are so laminated that the transfer layer and the acceptor layer are brought into close contact with one another. As the developer to be contained in the acceptor layer salicylic acid derivative metal salt is used, and as the sensitizer heat fusible material having a melting point of 30-110 deg.C is used. |
