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    INFORMATION RECORDING/DISPLAYING CARD, IMAGE PROCESSING METHOD USING SAME, AND IMAGE PROCESSOR
    2.
    发明公开
    INFORMATION RECORDING/DISPLAYING CARD, IMAGE PROCESSING METHOD USING SAME, AND IMAGE PROCESSOR 有权
    信息记录/显示卡，使用该卡的图像处理方法和图像处理器

    公开(公告)号：EP1502764A1

    公开(公告)日：2005-02-02

    申请号：EP03719169.9

    申请日：2003-04-23

    申请人： Ricoh Company, Ltd. ,  MITSUBISHI PLASTICS INC.

    发明人： KUBOYAMA, Hiroki ,  TATEWAKI, Tadafumi ,  MIYAMOTO, Shuuji ,  HOTTA, Yoshihiko ,  HIGASHI, Hiroshi c/o Mitsubishi Plastics, Inc. ,  TAKEMOTO, Shinya c/o Mitsubishi Plastics, Inc. ,  TERAI, Tomohiko c/o Mitsubishi Plastics, Inc. ,  KAJIYASHIKI, Makoto c/o Mitsubishi Plastics, Inc.

    IPC分类号： B41M5/40 ,  B32B7/02 ,  B32B27/36 ,  B42D15/10 ,  G06K19/00

    CPC分类号： B32B27/08 ,  B32B27/36 ,  B32B27/365 ,  B32B2425/00 ,  B41M5/305 ,  B41M5/3335 ,  B41M5/3336 ,  B41M5/3375 ,  B41M5/41 ,  B41M5/42 ,  G06K19/077

    摘要： To provide an information recording-displaying card that is easy to emboss and is so excellent in card's machinability (by bonding to a thick base material of a reversible thermosensitive recording medium) and in eraseability:
    An information recording-displaying card, comprising: a core sheet; and an over sheet bonded to the core sheet, wherein the over sheet comprises: a support which comprises an amorphous polyester resin, and a reversible thermosensitive recording layer disposed on the support, wherein the reversible thermosensitive recording layer comprises: an electron-donating coloring compound, and an electron-accepting compound, wherein the reversible thermosensitive recording layer is capable of relatively forming a coloring state and a decolorizing state, with a difference in at least one of the following: a heating temperature, and a cooling rate after a heating, and wherein the over sheet is embossable in an upper portion thereof, functions as an image displaying section, and meets the following condition (A), condition (B) and condition (C): condition (A) (the over sheet's upper limit temperature for erasing - 30°C) > (the over sheet's temperature of a storage elasticity E' (1.0 E + 08) Pa), condition (B) 10 µm or less of a surface waviness WCM, and condition (C) 1.0 E + 02 Pa ≤ (the storage elasticity E' of the reversible thermosensitive over sheet at 180°C) ≤ 5.0 E + 07 Pa.

    摘要翻译： 提供一种信息记录显示卡，该信息记录显示卡容易压花，并且在可加工性方面如此优异（通过结合到可逆热敏记录介质的厚基材上）和可擦性：一种信息记录显示卡，包括：芯体 片; 以及结合到所述芯片上的覆盖片，其中所述覆盖片包括：载体，其包含非晶聚酯树脂和设置在所述载体上的可逆热敏记录层，其中所述可逆热敏记录层包含：供电子着色化合物 和电子接受性化合物，其中所述可逆热敏记录层能够相对形成着色状态和脱色状态，其中加热温度和加热后的冷却速率中的至少一个存在差异， （A），条件（B）和条件（C）：条件（A）（顶片的上限温度 （表面擦痕温度-30℃）>（储存弹性E'（1.0E + 08）Pa）的表面温度，表面波纹度WCM10μm以下的条件（B） （C）1.0E +02Pa≤（在180℃下可逆热敏片材的储存弹性E'）≤5.0E+ 07Pa。

    REVERSIBLE THERMAL RECORDING MEDIUM
    4.
    发明公开
    REVERSIBLE THERMAL RECORDING MEDIUM 有权
    UMKEHRBARES THERMISCHES AUFZEICHNUNGSMEDIUM

    公开(公告)号：EP1609616A1

    公开(公告)日：2005-12-28

    申请号：EP03758884.5

    申请日：2003-10-24

    申请人： Ricoh Company, Ltd.

    发明人： HAYAKAWA, Kunio ,  KAWAHARA, Shinya ,  TATEWAKI, Tadafumi ,  YAMAMOTO, Shin ,  SHIMBO, Hitoshi ,  TSUTSUI, Kyohji ,  FURUYA, Hiromi ,  SHIBUYA, Takeshi ,  HOTTA, Yoshihiko

    IPC分类号： B41M5/30 ,  B41J2/32

    CPC分类号： B41M5/305

    摘要： The present invention is a selective invention concerned with an improved reversible thermosensitive recording medium in which erasure failure at low temperature and low humidity and the color development failure at high temperature and high humidity due to the repetitive erasure and printing in an environment of actual use have been improved; stable quality can be provided; and high speed erasure can also be realized. An object of the present invention is to provide a reversible thermosensitive recording medium in which humidity does not affect color optical density and erasing optical density; high contrast is excellent; the occurrence of dents to the recording medium and the density change due to the repetitive use are less; durability is excellent; wherein it is also possible to perform erasure by a thermal head; and high speed erasure is excellent.
    A reversible thermosensitive recording medium of the invention comprises: a reversible thermosensitive recording layer which comprises a reversible thermosensitive composition on a support, wherein the reversible thermosensitive composition comprises a an electron-donating coloring compound and an electron-accepting compound and is capable of forming a relatively coloring state depending on the difference of heating temperatures and/or the difference of cooling rates after heating, and wherein the electron-accepting compound is a phenol compound expressed by the general formula (1) below, and when the reversible thermosensitive recording medium is printed in an environment of 35°C ± 2°C and at relative humidity from 70% to 90%, a color optical density is 0.80 or more and an erasing optical density is 0.15 or less;
       where, in the formula (1), 'n' represents an integer of 1 to 3 and 'X' represents a divalent group containing either N atoms or O atoms, 'R 1 ' represents an aliphatic hydrocarbon group having 2 or more carbon atoms, which may have a substituents, and 'R 2 ' represents an aliphatic hydrocarbon group having 1 to 14 carbon atoms.

    摘要翻译： 本发明是涉及改进的可逆热敏记录介质的选择性发明，其中在实际使用环境中由于重复擦除和打印而导致的在低温和低湿度下的擦除故障和高温高湿下的显色失败具有 得到改善 可以提供稳定的质量; 也可以实现高速擦除。 本发明的目的是提供一种可逆热敏记录介质，其中湿度不影响颜色光密度和擦除光密度; 高对比度优秀; 记录介质的凹痕的发生和由于重复使用引起的密度变化较小; 耐用性好; 其中也可以通过热头执行擦除; 高速擦除性能优异。 本发明的可逆热敏记录介质包括：可逆热敏记录层，其在载体上包含可逆热敏组合物，其中可逆热敏组合物包含给电子着色化合物和电子接受性化合物，并且是 能够根据加热温度的差异和/或加热后的冷却速度差来形成相对着色状态，其中，电子接受性化合物是由下述通式（1）表示的酚化合物，当可逆的 热敏记录介质在35℃±2℃，相对湿度70〜90％的环境下印刷，彩色光密度为0.80以上，擦除光密度为0.15以下。 其中，在式（1）中，“n”表示1〜3的整数，“X”表示含有N原子或O原子的二价基团，“R1”表示具有2个以上的脂肪族烃基 碳原子，其可以具有取代基，“R 2”表示具有1至14个碳原子的脂族烃基。