Patent ID: 7338559
Filing Date: 2008-03-04
Classification: B05C,D21H,Y10S

Abstract:
1. Apparatus for applying coating liquid onto a surface of a web moving in a given direction, comprising: a coating liquid applicator having a passage; means for flowing coating liquid through said applicator passage; a concave curved surface in communication with said applicator passage for flow of coating liquid from said passage onto said concave curved surface, said concave curved surface curving toward the web surface and having a terminal portion spaced from and extending toward the web surface in the direction of movement of and at an acute angle to the web surface, the coating liquid flowing from said passage and along said concave curved surface in a sheet of coating liquid to subject the sheet of coating liquid to centrifugal force to concentrate coating liquid toward one surface of the coating liquid sheet that is toward said concave curved surface and to redirect the coating liquid sheet for flow from said terminal portion toward the web surface in the direction of movement of and at the acute angle relative to the web surface to cause the one surface of the coating liquid sheet that was toward said concave curved surface to impinge against the web surface; and including means disposed downstream from said applicator for doctoring coating liquid on the web surface.