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    • 9. 发明授权
    • Curtain coating method and apparatus
    • 窗帘涂布方法及装置
    • US4830887A
    • 1989-05-16
    • US185207
    • 1988-04-22
    • Thomas C. Reiter
    • Thomas C. Reiter
    • B05C5/00B05C9/06B05D1/30G03C1/74
    • G03C1/74B05C5/008B05D1/305B05C9/06G03C2001/7433G03C2001/7455G03C2001/747Y10S118/04
    • Method and apparatus for applying one or a plurality of superimposed layers of a photographic coating composition by the curtain coating method onto a moving support. The spacing between the edge guides, used to maintain the width of a curtain throughout its free fall from the coating hopper to the impingement line on the support, is arranged to coat less than the width of the support so as to provide an uncoated margin on the support. The curtain fluids are extracted from the edge region of the falling curtain by connecting a suction device to the edge guides near the point of impingement of the falling curtain, thus substantially reducing the thickness of the curtain at its edge region and thereby reducing the thickness of the coated edges.
    • 通过帘式涂布方法将一个或多个照相涂料组合物叠加层施加到移动载体上的方法和装置。 边缘引导件之间的间距用于将窗帘的宽度保持在从涂覆料斗自由落下到支撑件上的冲击线上,布置成小于支撑件的宽度以便提供未涂覆的边缘 支撑。 通过将抽吸装置连接到落下的帷幕撞击点附近的边缘导向器,帘幕流体从帷幕的边缘区域被抽出,从而大大减小了窗帘边缘区域的厚度,从而减小了帘幕的厚度 涂层边缘。
    • 10. 发明授权
    • Method of making photographic elements
    • 制作摄影元素的方法
    • US3632374A
    • 1972-01-04
    • US3632374D
    • 1968-06-03
    • EASTMAN KODAK CO
    • GREILLER JACK FRANCIS
    • B05C5/00B05C9/06B05D1/26B41M5/382G03C1/74B44D1/02
    • B05C5/008B05C5/005B05C9/06G03C1/74G03C2001/7433G03C2001/7462G03C2001/7466G03C2001/747G03C2001/7477G03C2001/7481G03C2001/7492Y10S430/136
    • In the manufacture of photographic elements, such as photographic film or paper, the support is coated by forming a free-falling vertical curtain of liquid photographic coating composition in such manner that the curtain is stable and has a uniform flow rate across its width and directing the support so that the free-falling curtain impinges thereon, while maintaining a controlled relation between the flow rate and the speed at which the support is moved, to form a thin layer of the coating composition on the face of the support. Apparatus which is particularly advantageous for carrying out this method includes means for advancing the support at the desired speed and a hopper for the coating composition which is provided with a downwardly inclined slide surface down which the coating composition flows by gravity, the slide surface terminating in a lip spaced vertically above the moving support from which the coating composition flows as a free-falling curtain.
    • 在照相材料如照相胶片或纸的制造中,通过形成一种自由落下的液体照相涂料组合物的垂直帘幕来涂覆载体,使得帘幕是稳定的并且在其宽度上具有均匀的流速并且引导 支撑件使得自由落下的窗帘在其上冲击,同时保持流速和支撑件移动速度之间的受控关系,以在支撑体的表面上形成薄层的涂料组合物。 对于实施该方法特别有利的装置包括用于以所需速度推进支撑件的装置和用于涂料组合物的料斗,该涂料组合物设置有向下倾斜的滑动表面,涂覆组合物通过重力流动,滑动表面终止于 在移动支撑件上方垂直地间隔开的唇缘,涂层组合物从该边缘作为自由落下的窗帘流动。