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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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公开(公告)号:US5181963A
公开(公告)日:1993-01-26
申请号:US644230
申请日:1991-01-22
CPC分类号: G03C1/74 , B05C5/008 , D21H23/48 , G03C2001/7433 , G03C2001/7485 , Y10S118/04
摘要: Curtain coater for coating a layer of liquid photograph coating composition on a continuous web, which comprises a coating hopper (10), a roller (18) for supporting the web while moving past the coating hopper to receive a layer (16) of coating composition produced by the hopper and, arranged closely to and slightly upstream of the coating locus of the curtain on the web, an elongated brush arrangement (24) extending across the web, the bristles of which are flexible and in resilient contact with the web surface. The brush arrangement functions to reduce the effect of air carried along by the moving web on the liquid curtain in conjunction with an upstream air shield in the form of an arcuately curved plate coaxial with the supporting roller and spaced closely from the web surface.
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