| 摘要 |
PURPOSE:To allow repetitive use for a long term and obviate a thermal head or an erasing unit by incorporating normally colorless or pale electron donative dye precursor and reversible developer for reversibly changing a color tone in the precursor under heating conditions as main ingredients in a reversible thermal recording layer. CONSTITUTION:A support 1, a heat generating resistor layer 2, a conductive layer 3, a reversible thermal recording layer 4 and a protective layer 5 are provided as a structure of an excitation reversible thermal recording material. The layer 4 contains normally colorless or pale electron donative dye precursor, and reversible developer for reversibly changing a color tone in the precursor under heating conditions as main ingredients. The developer reversibly change a color tone which can be held under heating conditions in the presence of the dye precursor. A using amount of the developer to the precursor is preferably 10-3,000wt.%. |
