Pad forming method

Abstract

A method for forming pads of pressure sensitive adhesive coated sheets with similar discontinuities (e.g., printed indicia or openings) on the sheets substantially aligned. A strip of pressure sensitive adhesive coated material is helically wound around the periphery of a roller to form a roll comprising a multiplicity of overlying layers of the strip by rotating the roller about its axis to pull the strip along a predetermined path onto the roller. Discontinuities are formed on the strip along the predetermined path at locations that are progressively increasingly spaced apart to compensate for the increasing circumference of the roll and which result in at least one set of discontinuities being located along the periphery of the roller in substantial alignment radially outwardly of the roller; and pads containing such aligned discontinuities are then cut from the roll.

Dependencies are inferred from the claim text.