B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
281/8
B32B 3/10 (2006.01) B31D 5/00 (2006.01)
Patent
CA 1314574
42073 CAN 2A . Pad Forming Method Abstract A method for forming pads (11) of pressure sensitive adhesive coated sheets with similar discontinuities (e.g., printed indicia (10) or openings (13)) on the sheets substantially aligned. A strip (16) of pressure sensitive adhesive coated material is helically wound around the periphery of a roller (18) to form a roll (20) comprising a multiplicity of overlying layers of the strip (16) by rotating the roller (18) about its axis to pull the strip (16) along a predetermined path (22) onto the roller (18). Discontinuities are formed on the strip (16) along the predetermined path (22) at locations that are progressively increasingly spaced apart to compensate for the increasing circumference of the roll (20) and which result in at least one set of discontinuities being located along the periphery of the roller (18) in substantial alignment radially outwardly of the roller (18); and pads (14) containing such aligned discontinuities are then cut from the roll (20).
556811
David John R.
Pohl Daniel P.
Minnesota Mining And Manufacturing Company
Smart & Biggar
LandOfFree
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