Patent ID: 8561575

Claim:
A dulling assembly comprised of a corrugated bundle, the dulling assembly comprising: a base surface; a plurality of planar paperboard sheets arranged in generally parallel, spaced-apart relationship, each planar paperboard sheet being oriented to extend generally perpendicularly away from the base surface such that a lengthwise edge is exposed; a plurality of fluted paperboard sheets, each fluted paperboard sheet being positioned between and adhered to two adjacent ones of the plurality of planar paperboard sheets and being oriented to extend generally perpendicularly away from the base surface such that a lengthwise edge is exposed, the exposed lengthwise edges of each of the plurality of planar paperboard sheets and the plurality of fluted paperboard sheets together defining a bundle top surface oriented generally perpendicularly to the planar paperboard sheets and the fluted paperboard sheets and spaced apart from the base surface; a separate outer abrasive film placed over and adhered to the bundle top surface.