Patent ID: 7712700
Filing Date: 2010-05-11
Classification: B65H,Y10T

Abstract:
1. A core for a wound roll of pressure-sensitive adhesive tape, the core comprising: paperboard material wound about an axis and adhered together to form a tubular body having a cylindrical radially inner surface and a cylindrical radially outer surface and having opposite ends; a polymer film layer wrapped about the outer surface of the tubular body and adhered thereto so as to form a tape-receiving surface upon which adhesive tape is to be wound, the polymer film layer having opposite edges one of which is an overlapping edge and the other of which is an overlapped edge, the overlapping edge overlapping the overlapped edge and being adhered thereto so as to form an overlap joint between the opposite edges of the polymer film ply, the overlapping edge having a length between the opposite ends of the tubular body; and a recessed region formed in the outer surface of the tubular body, the recessed region being recessed radially inwardly relative to the cylindrical outer surface, and at least a portion of the length of the overlapping edge extending into and terminating in the recessed region such that the overlapping edge is not contacted by the adhesive tape wound about the core.