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    • 8. 发明授权
    • Reversible thermosensitive coloring composition and reversible
thermosensitive recording medium using the same
    • 可逆热敏着色组合物和使用其的可逆热敏记录介质
    • US6001159A
    • 1999-12-14
    • US114527
    • 1998-07-13
    • Hiromi FuruyaMasafumi ToriiKyoji TsutsuiMasaru Shimada
    • Hiromi FuruyaMasafumi ToriiKyoji TsutsuiMasaru Shimada
    • B41M5/30B41M5/333C09D11/00
    • B41M5/305B41M5/3335B41M5/3336
    • A reversible thermosensitive coloring composition contains an electron-donating coloring compound and an electron-accepting compound, and is capable of reversibly assuming a color-developed state or a decolorized state depending upon the the temperature of the reversible thermosensitive coloring composition when heated, and/or the cooling rate of the reversible thermosensitive coloring composition when cooled after the heating thereof, with the electron-accepting compound being a compound of formula (I):A--R--X (I)wherein A represents a color-developing moiety; R represents an aliphatic hydrocarbon group comprising as the main chain thereof a straight chain hydrocarbon group having 8 or more carbon atoms, and may comprise a bivalent hetero-atom containing group and/or a bivalent aromatic group; and X represents a hetero-atom containing associative group. There is also provided a reversible thermosensitive recording medium comprising a support, and a thermosensitive recording layer formed thereon comprising the aforementioned reversible thermosensitive coloring composition.
    • 可逆热敏着色组合物含有给电子着色化合物和电子接受性化合物,并且能够根据可逆热敏着色组合物的加热温度和/或可逆热敏着色组合物的温度,可逆地假设显色状态或脱色状态,和/ 或可逆热敏着色组合物在加热之后冷却时的冷却速率,其中电子接受性化合物为式(I)化合物:ARX(I)其中A表示显色部分; R表示含有8个以上碳原子的直链烃基作为主链的脂肪族烃基,可以含有2价含杂原子的基团和/或2价芳香族基团。 X表示含杂原子的缔合基团。 还提供了一种可逆热敏记录介质,其包括载体和形成在其上的热敏记录层,其包含上述可逆热敏着色组合物。