Process and an apparatus for stabilizing free-falling liquid curtains
    1.
    发明授权
    Process and an apparatus for stabilizing free-falling liquid curtains 失效
    用于稳定自由落下的液幕的方法和装置

    公开(公告)号:US4479987A

    公开(公告)日:1984-10-30

    申请号:US563817

    申请日:1983-12-21

    摘要: The stabilization of free-falling liquid curtains (4) in the coating of objects or webs (5) using curtain coaters is considerably improved by the use of curtain holders (9) from which an additional auxiliary liquid (11) issues towards and combines with the curtain (4), for laterally guiding the free-falling curtain (4) formed at the coating edge (3) of the coater. Triangular liquid bridges (14) are thus formed between the curtain (4) and the curtain holders (9) from the coating edge (3) to the point where the curtain (4) impinges on the layer support (5). The curtain holders (9) consist of tubular hollow bodies with a delivery spout (10) and a distributing passage (12) for the liquid (11) and an exit slot (13) or of a porous tubular material without any exit slot (FIG. 3).

    摘要翻译: 使用帘式保持器(9)可以显着改善使用窗帘式涂布机在物体或纸幅(5)涂层中自由落下的液体帘幕(4)的稳定性,附加辅助液体(11)从该窗保持件 帘幕(4),用于横向地引导形成在涂布机的涂布边缘(3)处的自由下落的窗帘(4)。 因此,在窗帘(4)和窗帘保持件(9)之间从涂覆边缘(3)到帘幕(4)撞击在层支撑件(5)上的点处形成三角形液体桥(14)。 帘式保持器(9)由具有输送口(10)和用于液体(11)的分配通道(12)和没有任何出口槽的出口槽(13)或多孔管状材料的管状中空体构成(图 3)。

    Process for the multiple coating of moving objects or webs
    2.
    发明授权
    Process for the multiple coating of moving objects or webs 失效
    移动物体或腹板多重涂层的工艺

    公开(公告)号:US4569863A

    公开(公告)日:1986-02-11

    申请号:US540530

    申请日:1983-10-11

    摘要: A process for the multiple coating of objects or webs which are continuously moving past a coating point, using coating apparatus according to the curtain coating process. This process is carried out such that any number of comparatively high viscosity layers is embedded between an accelerating layer which is positioned below the layers and has a viscosity range of from 1 to 20 mPas and a layer thickness of from 2 to 30 .mu.m, and a spreading layer which is positioned above the comparatively high viscosity layers and has a viscosity range of from 1 to 10 mPas and a layer thickness of from 5 to 20 .mu.m. By the curtain coating process, coating rates of 400 m/min and more may be achieved with a good coating quality.

    摘要翻译: 通过使用根据帘式涂布方法的涂布装置,连续地移动经过涂覆点的物体或网状物的多次涂覆的方法。 进行该处理,使得在位于层之下的加速层之间嵌入任何数量的较高粘度的层,并且具有1至20mPas的粘度范围和2至30μm的层厚度,以及 位于较高粘度层上方的扩散层,其粘度范围为1〜10mPa·s,层厚为5〜20μm。 通过帘式涂布方法,可以以良好的涂层质量实现400m / min以上的涂布速度。