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公开(公告)号：US4135477A
公开(公告)日：1979-01-23
申请号：US772335
申请日：1977-02-25
申请人： Kenneth A. Ridley
发明人： Kenneth A. Ridley
CPC分类号： B05C5/008 , G03C1/74 , B05C9/06 , G03C2001/7433 , G03C2001/747 , G03C2001/7474 , Y10S118/04
摘要： An apparatus for curtain coating is provided wherein a falling curtain of coating liquid is formed by causing coating liquid to flow as a layer down an inclined surface of a slide hopper, the inclined surface terminating in a lip and the coating liquid beginning its fall after flowing over the lip on to a travelling web positioned beneath the slide hopper and being coated thereon as a layer. The slide hopper is provided with two vertical edge guiding plates extending parallel to the direction of web motion and being of such width to allow the curtain edge to follow its natural inflected path. Preferably the edge guiding plates are composed of an easily wettable material, particularly polymethymethacrylate.
摘要翻译： 提供了一种帘式涂布装置，其中通过使涂布液以滑动料斗的倾斜表面向下流动形成涂布液的下落帘幕，倾斜表面终止于唇部，并且涂布液在流动后开始下降 在唇缘上方到位于滑动料斗下方并且作为层被涂覆的行进网。 滑动料斗设置有两个垂直的边缘引导板，平行于腹板运动方向延伸并且具有这样的宽度，以允许帘边缘遵循其自然弯曲的路径。 优选地，边缘引导板由容易润湿的材料，特别是聚甲基丙烯酸甲酯组成。
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公开(公告)号：US4922851A
公开(公告)日：1990-05-08
申请号：US360635
申请日：1989-06-02
CPC分类号： G03C1/74 , B05C5/008 , B05C9/06 , G03C2001/7433 , G03C2001/7474 , Y10S118/04
摘要： A curtain-type coating liquid application device having a slide hopper and an application start plate used to prevent an increase in the thickness of the initially applied portion of the liquid on a web to thereby make the initial coating portion flat and smooth. Liquid freely falling in the form of a thin curtain from the slide hopper is caused to collide against the web continuously moving around a backup roller so that the liquid is applied to the web. The application start plate is curved or bent and is turnable about a fulcrum located under the backup roller. The application start plate also has an upper end extending at an oblique angle to the direction of width of the curtain, or it may be provided with a curtain receiving part at the upper end of the plate.
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公开(公告)号：US5236744A
公开(公告)日：1993-08-17
申请号：US605297
申请日：1990-10-30
CPC分类号： B05C5/008 , G03C1/74 , G03C2001/7433 , G03C2001/7474 , G03C2001/7492 , Y10S118/04
摘要： A slide-hopper-type coating method in which the viscosity of the coating solution forming a free-falling curtain and the angle .alpha. which the front edge of the lip of the slide hopper forms with respect to the horizontal are selected with respect to the flow rate of the curtain in such a way that the line of contact between the curtain and the web is concave with respect to the direction in which the web travels. In addition, the angle .beta. which the extension of the curtain in the direction of its fall forms with respect to the direction of travel of the web at the point where the curtain is deposited on the web is preferably adjusted so that it is an obtuse angle not larger than 140.degree.. By satisfying these conditions, the coating method of the present invention is capable of extending the upper limit of coating speeds without causing "sagging" in the range of high flow quantities of coating solution per unit length of curtain coat width.
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公开(公告)号：US4647482A
公开(公告)日：1987-03-03
申请号：US777763
申请日：1985-09-19
CPC分类号： G03C1/74 , B05C5/008 , B05C9/00 , B05D1/305 , G03C2001/7414 , G03C2001/7433 , G03C2001/7474 , Y10S118/04
摘要： Method and apparatus for curtain coating a flexible web by coating the curtain at a width wider than the width of the web. The margins of the web are preserved from being coated by conveying the web in the coating zone over a web supporting roller than does not support the web margins, and by deflecting the unsupported web margins downwardly by means of curtain interceptors that remain in contact with the web under the elastic recovery forces in the web material.
摘要翻译： 通过以比网的宽度更宽的宽度涂布帘幕来幕帘涂布柔性网的方法和装置。 通过在幅材支撑辊上将幅材输送到不支撑幅材边缘的幅材支撑辊上，并且通过与屏幕保持接触的窗帘拦截器向下偏转未支撑的幅材边缘而保持幅材的边缘不被涂覆 在纤维网材料下的弹性恢复力下。
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