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    OPTIMIZED INTERNALLY-FED HIGH-SPEED ROTARY PRINTING DEVICE
    2.
    发明申请
    OPTIMIZED INTERNALLY-FED HIGH-SPEED ROTARY PRINTING DEVICE 有权
    优化的内部高速旋转打印设备

    公开(公告)号：US20150090138A1

    公开(公告)日：2015-04-02

    申请号：US14038933

    申请日：2013-09-27

    申请人： The Procter & Gamble Company

    发明人： Haibin CHEN ,  Thomas Timothy BYRNE ,  Mark Stephen CONROY

    IPC分类号： B41F9/00 ,  B41F9/06

    CPC分类号： B41F9/003 ,  B41F9/061 ,  B41F13/11 ,  B41F31/22 ,  B41F31/26 ,  B41J2/315

    摘要： A rotary device for high-speed printing or coating of a web substrate is disclosed. The printing system provides a gravure roll rotatable about an axis at a surface velocity, ν, and a fluid channel having a pressure drop throughout the fluid channel due to friction, Pf, disposed therein. The fluid channel is disposed generally parallel to the axis at a distance, Rin, relative to the axis. The fluid channel provides fluid communication of a fluid having a fluid vapor pressure, Pv, and a fluid density, ρ, from a first position external to the gravure roll to a web substrate contacting surface of the gravure roll. The web substrate contacting surface is located at a distance, Rout, relative to the axis. Rin is determined from the relationship: R in R out > 1 - 2  ( P out - P v + P f ) ρ   v 2 where Pout=static pressure of the fluid channel at the web substrate contacting surface.

    摘要翻译： 公开了一种用于高速印刷或卷材的涂布的旋转装置。 该打印系统提供一个可以表面速度和ngr的轴线旋转的凹版辊，以及由于其中设置的摩擦Pf而在整个流体通道内具有压降的流体通道。 流体通道大致平行于轴线相对于轴线以一定距离Rin设置。 流体通道提供具有从凹版辊外部的第一位置到凹版辊的网状物基底接触表面的流体蒸气压力Pv和流体密度的流体的流体连通。 幅材基板接触表面相对于轴线位于距离Rout。 Rin由以下关系确定：R in R out> 1 - 2（P out -Pv + P f）＆rgr; 其中Pout =在幅材衬底接触表面处的流体通道的静态压力。