Patent ID: 6428853
Filing Date: 2002-08-06
Classification: B05C,D21H

Abstract:
Application apparatus for coating a travelling web, comprising:a support roll; a predosage roll, the support roll and the predosage roll defining a nip through which a web travels, the support toll and the predosage roll both moving in a direction of movement of the web at the nip, the predosage roll being disposed beneath a bottom surface of the web; an application device disposed at a distance from the predosage roll for transferring a coating material onto the bottom surface of the web upstream of the nip; and a doctoring device for evening of the material applied onto the web downstream of the nip, wherein the application device is arranged to transfer the material directly onto the travelling web in excess of a desired amount before the web enters the nip, the predosage roll being exposed at a lower part thereof to permit removal of excess material on the predosage roll by gravity, and the application device and the support roll define a space through which the web travels, the space being disposed upstream of the nip.