| 摘要 |
In a fountain coating applicator, an end dam sealing mechanism is provided for at least one end of a coating application chamber defined in part by a doctor blade and a backing surface such as a roll on which web to be coated travels continously. The sealing mechanism is adapted for engaging sealingly with a chamber surface area, the doctor blade and the backing surface roll. The sealing mechanism has a channel for draining coating material that may migrate from the application chamber between the sealing mechanism and the backing surface roll. Static seal is provided for the contiguous end of a pressure drop chamber and a slit orifice, which communicate with the wating application chamber.
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