Patent ID: 7247206
Filing Date: 2007-07-24
Classification: B05C,B63B,B64C,D21H,Y02T,Y10S

Abstract:
1. A device for applying at least one of liquid and pasty application medium to at least one side of a moving substrate, comprising: an applicator unit arranged at a distance from the substrate, said applicator unit discharging the application medium onto the substrate as a free application medium jet, said applicator unit being kept at a first predetermined electric potential, the substrate proximate to said applicator unit being kept at a second predetermined electric potential thereby producing an electric field, which exerts a force on said application medium jet as it moves from said applicator unit to the substrate, said force assisting in the movement of said application medium jet, wherein the substrate is one of a surface of a material web and a surface of a transfer roll; wherein said applicator unit is a curtain applicator unit, said application medium jet being an application medium curtain that discharges the application medium onto the substrate, said application medium curtain moves from said curtain applicator unit to the substrate substantially under the force of gravity; a first electrode arrangement for attenuating an air boundary layer carried along by said substrate; a suction box; and a trailing scraper, said first electrode arrangement being positioned between said suction box and said trailing scraper, said first electrode arrangement, said suction box, and said trailing scraper being positioned on an upstream side of said applicator unit.