Method for improving the uniformity of a liquid curtain in a cur

Details Method for improving the uniformity of a liquid curtain in a cur Method for improving the uniformity of a liquid curtain in a cur

1996-12-04

1998-06-02

Bareford, Katherine A.

Coating processes

Pretreatment, per se, or post-treatment, per se

427420, 118DIG4, B05D 130

Patent

active

057596336

ABSTRACT:
The invention concerns a method for improving the uniformity of a liquid curtain which includes the specification of, prior to the coating of the composition under the coating conditions, forming a curtain with flow rate and viscosity conditions (1, 2) which are such that the rear face of the lip is wet over a height greater than the height over which the composition would naturally wet the rear face under the coating conditions. Then, maintaining these flow rate and viscosity conditions over a given period of time.

REFERENCES:
patent: 3632374 (1972-01-01), Greiller
patent: 3867901 (1975-02-01), Greiller
patent: 4109611 (1978-08-01), Fahrni et al.
patent: 4510882 (1985-04-01), Prato
patent: 4877639 (1989-10-01), Willemsens et al.
patent: 5338359 (1994-08-01), Conroy et al.
patent: 5462598 (1995-10-01), Servant et al.

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