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8 条记录 (耗时 0.019 秒)

    INK AND PROCESSING LIQUID SET, IMAGE FORMING METHOD, AND IMAGE FORMING DEVICE
    1.
    发明公开
    INK AND PROCESSING LIQUID SET, IMAGE FORMING METHOD, AND IMAGE FORMING DEVICE 审中-公开

    公开(公告)号：EP3540021A1

    公开(公告)日：2019-09-18

    申请号：EP19161732.3

    申请日：2019-03-08

    申请人： Ricoh Company, Ltd.

    发明人： TAMAI, Takashi ,  JANG, Dongsik ,  HANAZAWA, Atsufumi ,  TAKAHASHI, Satoshi ,  YANAGAWA, Yoshiki ,  MAEKAWA, Tsutomu ,  WATARAI, Yukitaka

    IPC分类号： C09D11/54

    摘要： An ink and processing liquid set contains a processing liquid to be applied to a recording medium, the processing liquid comprising a multivalent metal salt and an ink to be applied to an area of the recording medium where the processing liquid has been applied, the ink comprising a urethane resin, a styrene-acrylic resin, and a pigment, wherein the following relations are satisfied: 0.5 ≤ B/C ≤ 0.7, where B represents a static surface tension of the ink and C represents a static surface tension of the processing liquid; and 0.5 ≤ E/D ≤ 0.9, and 35 (mN/m) ≤ E ≤ 55 (mN/m), where D represents a dynamic surface tension at 15 ms of the processing liquid and E represents a dynamic surface tension at 1500 ms of the processing liquid.

    INKJET RECORDING METHOD AND INKJET RECORDING DEVICE
    7.
    发明公开
    INKJET RECORDING METHOD AND INKJET RECORDING DEVICE 审中-公开
    TINTENSTRAHLAUFZEICHNUNGSVERFAHREN UND TINTENSTRAHLAUFZEICHNUNGSVORRICHTUNG

    公开(公告)号：EP3041682A1

    公开(公告)日：2016-07-13

    申请号：EP14841666.2

    申请日：2014-08-29

    申请人： Ricoh Company, Ltd.

    发明人： MASUDA, Kiminori ,  KOJIMA, Mariko ,  BANNAI, Akiko ,  TAMAI, Takashi ,  KITAOKA, Naoko ,  KOHDA, Tomohiko

    IPC分类号： B41J2/015 ,  B41J2/01

    CPC分类号： B41J2/04598 ,  B41J2/04581 ,  B41J2/04586 ,  B41J2/04588 ,  B41J2/04595 ,  B41J2/14274 ,  C09D11/40

    摘要： An inkjet recording method performed by inkjet recording device including nozzle plate with nozzle to eject droplets of ink; recording head including liquid chamber with which the nozzle is in communication, and pressure-generating unit configured to generate pressure in the liquid chamber; and signal-generating unit configured to generate signal applied to the pressure-generating unit, and allowing the droplets of ink to eject by pressure generated by the pressure-generating unit according to the signal, wherein the ink has static surface tension of 18.0mN/m to 27.0mN/m at 25°C, the ink has receding contact angle on the nozzle plate of 50° or more, the signal has two-step pull pulse for pulling the ink into the nozzle in two-step manner within one printing unit cycle, and the method includes pulling the ink located in proximity to nozzle outlet into the nozzle of the two-step pull pulse, to form meniscus at predetermined position.

    摘要翻译： 喷墨记录方法由喷墨记录装置执行，喷墨记录装置包括具有喷嘴的喷嘴板以喷射油墨; 记录头，包括与喷嘴连通的液体室;以及压力产生单元，被配置为在液体室中产生压力; 以及信号发生单元，其被配置为产生施加到所述压力发生单元的信号，并且根据所述信号使得由所述压力产生单元产生的压力喷射墨滴，其中所述墨水具有18.0mN / 在25℃下m至27.0mN / m，油墨在喷嘴板上的后退接触角为50°以上，该信号具有两步拉动脉冲，用于将墨水以两步方式拉入喷嘴内 打印单元循环，并且该方法包括将位于喷嘴出口附近的墨水拉到两步拉脉冲的喷嘴中，以在预定位置形成弯液面。