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    • 38. 发明授权
    • Apparatus for continuously applying a uniform coating to a material web
    • 用于连续地将均匀涂层施加到材料网的装置
    • US4887547A
    • 1989-12-19
    • US183322
    • 1988-04-06
    • Herbert SommerHans Ruckert
    • Herbert SommerHans Ruckert
    • B05C1/08B05C3/02B05C11/04
    • D21H23/40B05C1/0804B05C1/083B05C11/04D21H25/10D21H5/0015D21H5/0065
    • The invention relates to a method and an apparatus for continuously applying a uniform coating to a material web (5), in particular a paper or cardboard web, travelling over a back roller (6), to which the coating material is applied at low pressure by means of a coating roller (2) and with guidance by a guide plate (8) into the coating gap (7) formed by the back roller and the coating roller, whereupon the coating material is metered by a metering member (15) and in the region of a layer close to the material web is partly drained in order to form a barrier layer and final metering takes place in a final metering device (23) by means of a final metering member (24) with low contact pressure. Due to a three-stage method of this type and the apparatus suitable therefore, even at comparatively high material web speeds, constant good coating qualities can even be achieved with extremely low coating weights.
    • 本发明涉及一种连续地将均匀涂层施加到材料纤维网(5),特别是纸或纸板幅材上的方法和装置,该纸幅或纸板幅材在背辊(6)上行进,涂覆材料以低压 通过涂布辊(2)并由引导板(8)引导到由后辊和涂布辊形成的涂布间隙(7)中,由涂布材料由计量部件(15)计量,并且 在靠近材料幅材的层的区域中,为了形成阻挡层而被部分排出,并且通过具有低接触压力的最终计量构件(24)在最终计量装置(23)中进行最终计量。 由于这种类型的三级方法和适用的装置,即使在相对较高的材料幅材速度下,甚至可以以极低的涂层重量实现恒定的良好涂层质量。