| 摘要 |
A short dwell coater apparatus (10) is disclosed for the application of coating material (C) to a web (W) which is supported by a backing member (12). The apparatus (10) includes a housing (14) which is di sposed closely adjacent to the backing member (12) such that the web (W) moves between the housing (14) and the backing member (12). The housing (14) defines an application zone (16) which is connected to a pressurized source (P) of the coating material (C). The application zone (16) has an open face (18) towards the web (W). A blade (20) is adjustably secured to the housing (14) and extends from the housing (14) towards the web (W). The blade (20) defines a downstream extremity (22) of the application z one (16). A movable flow divider (24) supported by the housing (14) extends into the application zone (16). The divider (24) has an upstream and a downstream end (26, 28), with the downstream end (28) being movably disposed in the vicinity of the blade (20) for reducing the size of a flow vortex (V) generated within the application zone (16) due to movement of the web (W) past t he open face (18).
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