发明名称 Process and device for coating both sides of a film web
摘要 Two support film webs which are to be coated are brought together from two supply rolls and in the process a material interlayer is injected before joining together. The support film webs which are joined together to form a double web are adhesively bonded along the film longitudinal edges or welded by the effect of heat and passed, as double web, through a coating solution which is disposed in the lower part of a coating and drying device. After the passage through the coating solution bath, the double web is diverted perpendicularly upwards and passes through metering and smoothing rolls. This is followed by a drying zone consisting of plate heaters. After emergence from the coating and drying device, the double web, which is coated on both sides, is cut open along the film longitudinal edges, so that a separation of the two carrier film webs, each of which is coated on one side, can be carried out. <IMAGE>
申请公布号 DE3729450(A1) 申请公布日期 1989.03.16
申请号 DE19873729450 申请日期 1987.09.03
申请人 HOECHST AG 发明人 KOEHLER,OTTO
分类号 B05C9/04;B05D1/36;G03F7/16;H05K1/00;H05K3/00 主分类号 B05C9/04
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