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    COATING SOLUTION FOR HEAT-SENSITIVE COLOR-DEVELOPING LAYER, AND HEAT-SENSITIVE RECORDING MATERIAL
    2.
    发明公开
    COATING SOLUTION FOR HEAT-SENSITIVE COLOR-DEVELOPING LAYER, AND HEAT-SENSITIVE RECORDING MATERIAL 有权
    涂布液的热敏显色层和热敏记录材料

    公开(公告)号：EP2415614A1

    公开(公告)日：2012-02-08

    申请号：EP10758897.2

    申请日：2010-04-02

    申请人： Nippon Paper Industries Co., Ltd. ,  API Corporation

    发明人： AOSAKI, Yoshimune ,  KANEKO, Mai ,  OHSE, Katsuto ,  SATO, Yukiko

    IPC分类号： B41M5/337

    CPC分类号： B41M5/3336 ,  B41M5/323 ,  B41M5/3335 ,  B41M5/42 ,  B41M5/44 ,  B41M2205/04 ,  B41M2205/40

    摘要： Provided are a coating solution for a thermosensitive color developing layer of excellent storability wherein color development during its storage or during producing a thermal recording material is suppressed, and a thermal recording material with excellent print portion (image portion) storability and suppressed staining in the background color (white background).
    A coating solution for a thermosensitive color developing layer, which comprises a colorless or pale-colored electron-donating leuco dye, a hindered phenol compound and, as an electron-accepting developer, a diphenylsulfone derivative represented by the following formula (1):

    wherein the aforementioned hindered phenol compound has an average particle size (D50) of not more than 0.5 µm, and the coating solution has a color tone a* of not less than -4.0 as measured according to JIS Z 8729 and a whiteness W of not less than 62 as measured according to JIS Z 8715.

    摘要翻译： 提供了用于其在储存过程中或生产热敏记录材料期间具有优异的可存储性worin显色的热敏显色层的涂覆溶液被抑制，并且具有优良的打印部分（图像部分）保存性和抑制染色的背景的热敏记录材料 颜色（白色背景）。 diphenylsulfones用于热敏显色层，其包含无色或浅色的供电子无色染料，受阻酚化合物和作为电子接受显影剂的涂布溶液，通过下述式（1）表示的衍生物：worin 上述受阻酚化合物具有不大于0.5微米的平均粒径（D50），和涂层溶液的色调的不小于-4.0的a *为测量雅丁到JIS Z 8729和白度W的不低于 超过62所测量到gemäßJIS Z第八千七百一十五