Patent ID: 6410100
Filing Date: 2002-06-25
Classification: B05B,B05C,D21H

Abstract:
A method of directly or indirectly applying a liquid or pasty application medium to one or both sides of a continuous surface of a traveling fiber material web, said fiber material web being one of a paper web and a cardboard web, said fiber material web being adjacent a backing roll during said applying, whereinsaid application medium comprises a coating medium and is applied to said surface in a plurality of single application regions by means of a plurality of single application nozzles spaced apart from one another side by side and/or in succession in the direction of width of said surface and distanced from said surface, said application medium emerging from each of said nozzles as a spray in a form of a fanshape, each of said nozzles being one of a nozzle jet, a spray jet and a free jet, said nozzles conjunctively jetting a continuous curtain over the entire width of said continuous surface, said continuous surface entraining an air boundary layer, said air boundary layer being removed ahead of said single application nozzles relative to a direction of travel of said fiber material web, wherein adjacent single application regions respectively intersect in their respective edge regions at least in part, causing a layer of application medium to be produced over substantially the entire width of said surface to be coated.