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    • 10. 发明授权
    • Two-color thermosensitive recording material
    • 双色热敏记录材料
    • US4599630A
    • 1986-07-08
    • US669838
    • 1984-11-09
    • Kazumi OhtakiHiroshi Sakamoto
    • Kazumi OhtakiHiroshi Sakamoto
    • B41M5/30B41M5/323B41M5/333B41M5/34B41M5/40B41M5/42B41M5/18B41M5/22
    • B41M5/34B41M5/323B41M5/3333B41M5/3335B41M5/423
    • A two-color thermosensitive recording material using leuco dyes is disclosed, which is capable of forming two different colors when heated at different temperatures, black or blackish color at a low temperature and another color at a high temperature, comprising a support material, a high-temperature color-forming material overlaying the support material, a decolorization layer overlaying the high-temperature color-forming layer, and a low-temperature color-forming layer overlaying the decolorization layer, and when necessary, an intermediate layer interposed between the decolorization layer and the low-temperature color-forming layer, the decolorization layer containing an aliphatic amine or a morpholine derivative of the formula of ##STR1## which are fully defined in the specification, and the low-temperature color-forming layer containing as a color developer a thiourea derivatives of the formula, ##STR2## which is fully defined in the specification.
    • 公开了一种使用无色染料的双色热敏记录材料,其能够在不同温度下加热时形成两种不同的颜色,在低温下为黑色或黑色,另一种颜色为高温,其包含支撑材料,高 覆盖支撑材料的高温成色材料,覆盖高温成色层的脱色层和覆盖该脱色层的低温成色层,以及必要时介于该脱色层之间的中间层 和低温成色层,含有本说明书中完全限定的式“IMAGE”的脂族胺或吗啉衍生物的脱色层和含有彩色显影剂的低温着色层 在该说明书中完全定义的下式的硫脲衍生物