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    • 7. 发明授权
    • Thermoreversible recording material, thermoreversible recording medium
and recording method
    • 热可逆记录材料,热可逆记录介质和记录方法
    • US5310611A
    • 1994-05-10
    • US953785
    • 1992-09-30
    • Yutaka OkabeYoichi NishiokaYukihisa Okada
    • Yutaka OkabeYoichi NishiokaYukihisa Okada
    • B41M5/36B41M5/26
    • B41M5/363Y10S430/146
    • A thermoreversible recording material having its transparency changed in accordance with its thermal history, in particular the rate of cooling and the temperature to which it has been heated, comprises a matrix material and an organic compound of low molecular weight, wherein the matrix material comprises polyvinyl acetal, and the organic compound of low molecular weight comprises a saturated carboxylic acid or derivative thereof. The matrix material may further contains a material selected from a group consisting of epoxy resin, phenol resin, epoxy compound, aldehyde compound and isocyanate compound. A thermoreversible recording medium comprising the above thermoreversible recording material may be selectively heated by a thermal head or the like to record visual information. The visual information may be erased by heating the medium and cooling it slowly.
    • 具有根据其热历史,特别是冷却速度和其加热温度的透明度变化的热可逆记录材料包括基质材料和低分子量的有机化合物,其中基质材料包括聚乙烯 缩醛,低分子量的有机化合物包括饱和羧酸或其衍生物。 基质材料还可以含有选自环氧树脂,酚醛树脂,环氧化合物,醛化合物和异氰酸酯化合物的材料。 包含上述热可逆记录材料的热可逆记录介质可以通过热敏头等选择性加热,以记录视觉信息。 可以通过加热介质并缓慢冷却来消除视觉信息。