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    • 6. 发明授权
    • Multi-color thermosensitive recording material
    • 多色热敏记录材料
    • US4665410A
    • 1987-05-12
    • US853625
    • 1986-04-18
    • Kiyotaka IiyamaNorihiko Inaba
    • Kiyotaka IiyamaNorihiko Inaba
    • B41M5/128B41M5/30B41M5/323B41M5/333B41M5/34B41M5/40B41M5/42B41M5/18
    • B41M5/128B41M5/34B41M5/323B41M5/3335B41M5/423
    • A multi-color thermosensitive recording material comprising a support material, three or more thermosensitive coloring layer successively overlaid thereon and decolorizing intermediate layers interposed between the thermosensitive coloring layers, with at least the thermosensitive coloring layers except the thermosensitive coloring layer adjacent to the support material each comprising a basic leuco dye and a color developer capable of inducing color formation in the leuco dye upon application of thermal energy at a predetermined temperature, and each decolorizing intermediate layer containing a decolorizing agent which is capable of decolorizing the color developed in the thermosensitive coloring layer adjacent to the decolorizing intermediate layer when heated to a higher temperature than the predetermined coloring temperature for the thermosensitive coloring layer, which decolorizing agent for use in at least one of the decolorizing layers is (i) a N,N'-disubstituted aromatic diamide compound, (ii) a piperazine compound having at least two amido groups or (iii) a combination of the two compounds.
    • 一种多色热敏记录材料,包括一个支撑材料,三个或更多个热敏着色层,其上连续地覆盖在其上并且介于热敏着色层之间的脱色中间层,至少有热敏着色层,除热敏着色层之外与支撑材料相邻 包括基本的无色染料和能够在预定温度下施加热能时在无色染料中引起颜色形成的彩色显影剂,并且每个脱色中间层含有能够使热敏着色层中显影的颜色脱色的脱色剂 邻近脱色中间层,当加热到比热敏着色层的预定着色温度高的温度时,用于至少一个脱色层的脱色剂为(i)N,N'-二取代芳族二酰胺 e化合物,(ii)具有至少两个酰胺基的哌嗪化合物或(iii)两种化合物的组合。