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    • 24. 发明授权
    • Thermosensitive recording materials
    • 热敏记录材料
    • US5622909A
    • 1997-04-22
    • US441435
    • 1995-05-15
    • Hiromi FuruyaYasutomo MoriKeishi TaniguchiTakeshi Yuyama
    • Hiromi FuruyaYasutomo MoriKeishi TaniguchiTakeshi Yuyama
    • B41M5/333B41M5/155
    • B41M5/3335
    • A thermosensitive recording material of this invention has a support, on which a thermosensitive color developing layer mainly composed of a leuco dye and a color developer which is contacted with the leuco dye while heating to develop a color and a protective layer mainly composed of polyvinyl alcohol together with either aziridine compound or dimethylolurea are successively provided, the color developer being at least one of phthalic acid derivatives represented by the following general formula (I): ##STR1## wherein R.sub.1, X, Y and 1 are as defined in above. The thermosensitive recording material of this invention is excellent in sensitivity and density of the color development and has the high storage stability of the recorded images. Accordingly, the thermosensitive recording material of this invention is very useful.The selected inorganic filler may be incorporated in the thermosensitive color developing layer and/or the protective layer.
    • 本发明的热敏记录材料具有支撑体,在其上加热主要由无色染料组成的热敏彩色显影层和与无色染料接触以显色的显色剂和主要由聚乙烯醇组成的保护层 与氮丙啶化合物或二羟甲基脲一起提供,彩色显影剂是由以下通式(I)表示的邻苯二甲酸衍生物中的至少一种:其中R 1,X,Y和1如 以上。 本发明的热敏记录材料的显色灵敏度和密度优异,并且具有高记录图像的储存稳定性。 因此,本发明的热敏记录材料是非常有用的。 所选择的无机填料可以并入热敏彩色显影层和/或保护层中。