| 摘要 |
<p>An information recording/displaying card to which embossing is easily applied, and which is excellent in card machinability of bonding a reversible thermosensitive recording medium to a thick base and in erasure characteristic. An information recording/displaying card is characterized in that it includes at least a core sheet and an over sheet, the core sheet and the over sheet are bonded, the over sheet has a reversible thermosensitive recording layer on a support containing at least an amorphous polyester resin, the reversible thermosensitive recording layer contains an electron-donating coloring compound and an electron-accepting compound and can be brought into a relatively colored state and a discolored state depending on the difference in at least either the heating temperature or the cooling rate after heating, the over sheet functions as an image display unit and satisfies the conditions (A), (B), and (C) below, and the over sheet can be embossed. (A) [erasure upper limit temperature - 30°C] > [temperature of storage elasticity E’(1.0E+08)] (B) Surface waviness WCM is 10 µm or less (C) 1.0E+02Pa≤[storage elasticity E’of thermosensitive reversible over sheet at 180°C] ≤5.0E+07Pa</p> |
