Method and apparatus for curtain coating providing a lateral liq

Details Method and apparatus for curtain coating providing a lateral liq Method and apparatus for curtain coating providing a lateral liq

1998-10-02

2000-04-11

Bareford, Katherine A.

Coating processes

Falling curtain of coating material utilized

118324, 118DIG4, B05D 130, B05C 500

Patent

active

060485825

ABSTRACT:
In the method for curtain coating a moving support with any kind of coating solution, lateral flow is supplied to the guided curtain on both sides transversely to the length of the curtain and in parallel to the front wall of the lateral guides. The supply of the liquid film on the lateral guide is effected in such a manner that its surface velocity is equal to the falling velocity of the curtain at any point along the lateral guide. The device implementing the method features a porous plate which is arranged between the liquid supply and the curtain side. This ensures a constant coating without any disturbances due to marginal influences.

REFERENCES:
patent: 3632374 (1972-01-01), Greiller
patent: 4479987 (1984-10-01), Koepke et al.
patent: 4974533 (1990-12-01), Ishizuka et al.
patent: 5395660 (1995-03-01), Ruschak et al.
P. Grassman, Physikalische Grundlagen der Verfahrenstechnik, 1970, Sauerlander AG, Aarau, (No Month Date).

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