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    THERMOSENSITIVE RECORDING MEDIUM
    2.
    发明申请
    THERMOSENSITIVE RECORDING MEDIUM 有权

    公开(公告)号：US20230027721A1

    公开(公告)日：2023-01-26

    申请号：US17784584

    申请日：2020-12-08

    申请人： Nippon Paper Industries Co., Ltd.

    发明人： Kenji Hirai ,  Yoshimi Midorikawa ,  Yuka Murata ,  Kentaro Kawasaki

    IPC分类号： B41M5/44 ,  B41M5/333 ,  C08F265/06 ,  C08F2/24 ,  C08F2/44

    摘要： Provided is a thermosensitive recording medium having a sufficient water resistance to moisture and humidity, such as for outdoor use in rainy weather and the like, and also having a superior color developing sensitivity, print image quality when printing at high speed, ink fixability and solvent resistance and the like. As the protective layer comprises a specific silane-modified acrylic resin which is an aqueous emulsion of core-shell type p articles, in a thermosensitive recording medium having a thermosensitive recording layer on a substrate and a protective layer on the thermosensitive recording layer, the thermosensitive re cording medium has a sufficient water resistance and also has a superior color developing sensitivity, print image quality when printing at high speed, ink fixability and solvent resistance and the like.

    THERMOSENSITIVE RECORDING MEDIUM
    4.
    发明公开
    THERMOSENSITIVE RECORDING MEDIUM 审中-公开

    公开(公告)号：US20230144275A1

    公开(公告)日：2023-05-11

    申请号：US17802599

    申请日：2021-02-08

    申请人： Nippon Paper Industries Co., Ltd.

    发明人： Kenji Hirai ,  Kentaro Kawasaki ,  Yuka Murata ,  Yoshimi Midorikawa

    IPC分类号： B41M5/333

    CPC分类号： B41M5/3336 ,  B41M2205/04

    摘要： Provided is a thermosensitive recording medium being excellent in oil resistance among various performances required for the thermosensitive recording medium, and being further excellent in heat resistance, plasticizer resistance, and printing (recording) run-ability.
    That is a thermosensitive recording medium having a thermosensitive recording layer comprising a colorless or pale colored electron donating leuco dye and an electron accepting color developing agent on a substrate, wherein the thermosensitive recording layer contains at least two kinds of urea compounds. The two kinds of urea compounds comprise the first urea compound being represented by the following general formula 1, and the second urea compound being represented by the following general formula 2.




    wherein R1 represents a substituted or unsubstituted alkyl group, aralkyl group or aryl group, and R2 represents a hydrogen atom or an alkyl group,




    wherein R4 to R8 represent a hydrogen atom, a halogen atom, a nitro group, an amino group, an alkyl group, an alkoxy group, an aryloxy group, and the like, and m represents an integer of 0 to 2.

    THERMOSENSITIVE RECORDING MEDIUM
    5.
    发明申请
    THERMOSENSITIVE RECORDING MEDIUM 有权

    公开(公告)号：US20220410610A1

    公开(公告)日：2022-12-29

    申请号：US17776334

    申请日：2020-11-11

    申请人： Nippon Paper Industries Co., Ltd.

    发明人： Kentaro Kawasaki ,  Yuka Murata ,  Kenji Hirai ,  Yoshimi Midorikawa

    IPC分类号： B41M5/42 ,  B41M5/323 ,  B41M5/333 ,  C09B7/00 ,  C09B67/20 ,  C09K9/02

    摘要： Provided is a thermosensitive recording medium having excellent oil resistance among various performances required for the thermosensitive recording medium. The thermosensitive recording medium has a thermosensitive recording layer comprising a colorless or pale colored electron donating leuco dye and an electron accepting color developing agent on a substrate, wherein the thermosensitive recording layer contains N-[2-(3-phenylureido)phenyl] benzenesulfonamide and an urea-based compound represented by the general formula 1 as the electron accepting color developing agents, wherein R1 represents a substituted or unsubstituted alkyl group, aralkyl group or aryl group, and R2 represents a hydrogen atom or an alkyl group.