Non-Newtonian Liquid Blade Coating Process

[+] Author and Article Information
S. S. Hwang

Xerox Corporation, Rochester, N.Y. 14644

J. Fluids Eng 104(4), 469-474 (Dec 01, 1982) (6 pages) doi:10.1115/1.3241886 History: Received April 25, 1980; Online October 26, 2009


A blade coating process for non-Newtonian liquids is presented using different air pressure applied at the inlet and the exit of the coating gap. The system consists of a coating blade to form a gap and a vacuum box to create different air pressures to permit coating a thin liquid film on an advancing plastic web. The solution consists of matching the boundary conditions of each subregion of the coating process. The calculated liquid film thickness as a function of the coating gap and applied air pressure difference agrees closely with experimental data obtained on a laboratory coating device.

Copyright © 1982 by ASME
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