Coating apparatus – Immersion or work-confined pool type – Work-confined pool
Patent
1996-03-08
1998-02-24
Edwards, Laura
Coating apparatus
Immersion or work-confined pool type
Work-confined pool
118411, 118413, 118419, 427356, B05C 302
Patent
active
057208166
ABSTRACT:
An applicator head is positioned beneath a backing roll over which a substrate can be drawn. The applicator head has a housing which contains a pond of coating material between an up machine overflow lip and a down machine extraction plate or premetering plate. Coating material at a relatively low velocity flows into the pond adjacent to the overflow lip. The premetering plate extends radially from the coating inlet to a position proximate to and converging with the backing roll, where it premeters the amount of coating applied to the substrate. The premetering plate preferably has a plurality of holes through which coating and air are drawn. A metering element is spaced downstream of the premetering plate, and a low pressure area is constructed therebetween. Air and coating are drawn from the low pressure area through a valve, and the pressure thereby controlled.
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"BA 1500.TM. Coater: Versatile, high speed blade applicator produces quality coated papers," a brochure by Rader Companies, a division of Beloit Corporation. (No Date).
"New Coating Technologies Combine High Speeds With Higher Quality," an article published in Pulp & Paper, by Andy Harrison, pp. 60-64. May 1994.
"Optiblade.TM.-- a new method for high-speed LWC coating," article by Jukka Linnonmaa and Martti Tyrvainen, 3 pages, PaperNews, published by Valmet Corporation, Helsinki, Finland.
Becker Rex A.
Burns James R.
Li Alfred C.
Beloit Technologies Inc.
Campbell Raymond W.
Colaianni Michael P.
Edwards Laura
Mathews Gerald A.
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