Short dwell coater apparatus with backing blanket disposed between blade
and guide roll
    2.
    发明授权
    Short dwell coater apparatus with backing blanket disposed between blade and guide roll 失效
    具有布置在叶片和导向辊之间的背衬毯的短驻留涂布机

    公开(公告)号:US4961968A

    公开(公告)日:1990-10-09

    申请号:US329618

    申请日:1989-03-28

    CPC分类号: D21H23/36 B05C3/125

    摘要: A coater apparatus is disclosed for applying a primary flow of coating material to a moving web of paper. The apparatus includes a frame and a first and a second guide roll rotatably supported by the frame. The first and second guide rolls rotate respectively around first and second rotational axes. The second axis of rotation is disposed spaced and parallel relative to the first axis. A backing blanket extends around and is guided by the guide rolls. The blanket defines an endless loop around the guide rolls such that the web of paper is supported by the blanket during movement of the web from the first guide roll to the second guide roll. The blanket is disposed between the web and the guide rolls. A short dwell coater is disposed adjacent to the web and between the guide rolls for applying the primary flow of coating material to the web. While the web supported by the blanket is moving between the guide rolls, the web is moving in a plane disposed tangentially relative to the guide rolls such that secondary flows within the coater are inhibited.

    摘要翻译: 公开了一种涂布机装置,用于将主要的涂料材料流施加到移动的纸幅上。 该装置包括框架和由框架可旋转地支撑的第一和第二引导辊。 第一和第二引导辊分别围绕第一和第二旋转轴线旋转。 第二旋转轴线相对于第一轴线间隔开并平行设置。 背衬毯周围延伸并由引导辊引导。 毯子围绕引导辊限定无限循环,使得在幅材从第一引导辊移动到第二引导辊的过程中,纸幅被毯子支撑。 橡皮布布置在卷筒纸和导辊之间。 短暂的涂布机布置在纸幅附近和引导辊之间,用于将涂料的主流施加到纸幅上。 当由橡皮布支撑的纤维网在引导辊之间移动时,幅材在相对于引导辊切向设置的平面中移动,使得涂布机内的二次流被抑制。