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US 4,837,045 AGranted
Coating method
AssigneeFuji Photo Film Co., Ltd.
InventorKenji Nakajima
Life of this patent
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Abstract
A coating method in which the web is first undercoated with a gelatin layer containing a surface active agent. There the web is advanced over a drum held at a high DC potential and a coating composition is extruded on the gelatin layer.
Claims5
A coating method, comprising the steps of:
- undercoating a web with a layer of gelatin containing a surface active agent;
- continuously advancing said web;
- coating a material to said layer of gelatin undercoated on said web;
- and
- applying an electrostatic field on said moving web during said coating step.
2 more elements
Dependencies are inferred from the claim text.