Coating method

Details Coating method Coating method

1989-08-07

1991-01-15

Pianalto, Bernard

Coating processes

Roller applicator utilized

427128, 4274342, B05D 128

Patent

active

049852841

ABSTRACT:
A coating method and apparatus employing an extrusion-type coating head in which the probability of damaging the surface of the layer being formed on a support is remarkably decreased. Coating solution, such as a magnetic solution for forming a magnetic recording tape or the like, is supplied by a pump through a pipe line and thence a filtering element to the extrusion-type coating head, which applies the coating solution onto a support being run directly or through a coating roll. The filtering element, which is disposed at or near the coating solution supplying inlet of the extrusion-type coating head, has openings whose diameter is smaller than a coating clearance between a doctor edge of the extrusion-type coating head and the support or coating roll.

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