Coating processes – With post-treatment of coating or coating material – Solid treating member or material contacts coating
Patent
1991-11-14
1993-03-09
Wityshyn, Michael G.
Coating processes
With post-treatment of coating or coating material
Solid treating member or material contacts coating
118410, 118413, 118419, B05C 318, B05C 1104, B05D 312
Patent
active
051925915
ABSTRACT:
A short dwell coater apparatus is disclosed for the application of coating material to a web which is supported by a backing member. The apparatus includes a housing which is disposed closely adjacent to the backing member such that the web moves between the housing and the backing member. The housing defines an application zone which is connected to a pressurized source of the coating material. The application zone has an open face towards the web. A blade is adjustably secured to the housing and extends from the housing towards the web. The blade defines a downstream extremity of the application zone. A movable flow divider supported by the housing extends into the application zone. The divider has an upstream and a downstream end, with the downstream end being movably disposed in the vicinity of the blade for reducing the size of a flow vortex generated within the application zone due to movement of the web past the open face.
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"The Flow Characteristics In a Short Dwell Coater" by D. E. Eklund & P. C. Norrdahl; Coating Conference; 1986; pp. 99-102.
"Relationship Between Flow Instability In Short Dwell . . . " by N. G. Triantafillopoulos & C. K. Aidun; Coating Conference 1990; pp. 309-324.
Archer David J.
Beloit Technologies Inc.
Campbell Raymond W.
Veneman Dirk J.
Wityshyn Michael G.
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