Curtain coating method and apparatus

Details Curtain coating method and apparatus Curtain coating method and apparatus

1992-12-18

1994-10-25

Simmons, David A.

Coating apparatus

Projection or spray type

Endless conveyer for work

118300, 118325, 118DIG4, B05B 1302, B05C 500

Patent

active

053585690

ABSTRACT:
The present invention is a method and apparatus for use on a curtain coating apparatus. In a curtain coater, edge guides (12) guide the free falling curtain from the hopper lip to the substrate to be coated. Lubricating liquid (15) is introduced near the hopper lip from the top of the edge guide (12). The present invention is a method and apparatus for introducing lubricating liquid (15) as close to the hopper lip as possible while avoiding any turbulence in the flow of the lubricating liquid (15).

REFERENCES:
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patent: 4267795 (1981-05-01), Reba
patent: 4479987 (1984-10-01), Koepke et al.
patent: 4510882 (1985-04-01), Prato
patent: 4830887 (1989-05-01), Reiter
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H. Schlichting, Boundary Layer Theory, pp. 185-187, (1987).
M. G. Antoniades, R. Godwin, S. P. Lin, Journal of Colloid and Interface Science, vol. 77, No. 2, pp. 583-585, (Oct. 1980).
D. J. Triton, Physical Fluid Dynamics, p. 12, (1982).
Perry's Chemical Engineers' Handbook Sixth Edition, pp. 5-35, (1984).

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