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    • 7. 发明授权
    • Thermosensitive image transfer medium
    • 热敏图像转印介质
    • US4609928A
    • 1986-09-02
    • US561011
    • 1983-12-13
    • Keishi KuboNobuhiro TakigawaEiichi Kawamura
    • Keishi KuboNobuhiro TakigawaEiichi Kawamura
    • B41M5/333B41M5/00B41M5/392B41M5/52B41M5/22
    • B41M5/392B41M5/5227
    • A thermosensitive image transfer medium consisting of (i) an image transfer sheet having an image transfer layer consisting essentially of a leuco dye, and (ii) an acceptor sheet having an acceptor layer consisting essentially of a color developer which induces color formation in the leuco dye, the color developer being a mixture of a bisphenol derivative of the following formula and a p-hydroxybenzoic acid ester with a melting point of 100.degree. C. or less, and, of the image transfer layer and said acceptor layer, at least one layer containing a porous filler having an oil absorption of 50 ml/100 g or more as measured in accordance with the Japanese Industrial Standard K 5101, ##STR1## wherein X.sup.1 and X.sup.2 each represent a lower alkyl group or halogen, R.sup.1 and R.sup.2 each represent hydrogen or an alkyl group having 1 to 6 carbon atoms, and m and n each represent an integer of 0 through 4.
    • 一种热敏图像转印介质,由以下组成:(i)具有基本上由无色染料组成的图像转印层的图像转印片,和(ii)具有基本上由彩色显影剂组成的受体层的受主片,所述受体层在无色物质中诱导着色形成 染料,着色显影剂是下式的双酚衍生物和熔点为100℃以下的对羟基苯甲酸酯的混合物,以及图像转移层和所述受体层的至少一种 含有根据日本工业标准K 5101(IMAGE)测定的吸油量为50ml / 100g以上的多孔填料的层,其中X1和X2各自表示低级烷基或卤素,R1和R2各自表示 氢或碳原子数1〜6的烷基,m和n分别表示0〜4的整数。