Patent ID: 6242051
Filing Date: 2001-06-05
Classification: B05D

Abstract:
A method for coating a liquid composition to a coated or uncoated first surface of a web having first and second surfaces, the web being conveyed along a path through an apparatus for coating, and the composition being applied to the first surface at a coating point in the conveyance path, comprising the steps of:a) neutralizing electrostatic charges on the first and second surfaces of the web before a coating point;b) conveying the web after the neutralizing step over at least one conveyance roller having a relieved surface;c) delivering the electrostatically neutralized web to the coating point in the apparatus for coating;d) generating a uniform electrostatic field at the coating point by establishing a voltage differential between a backing roller and a coating hopper of from about 0.1 kV to not more than about 1 kV; ande) coating the web at the coating point yielding a uniform electrostatic assist.