B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
B65H 18/28 (2006.01) A47K 10/16 (2006.01) B26F 1/44 (2006.01) B26F 3/00 (2006.01)
Patent
CA 2162745
Improved detaching of perforated roll products of paper or nonwovens is achieved by selectively reducing strength of the sheet along the perforation line at the edges of the sheet. This is achieved by lowering the bonded length (the sum total of the distance between perforations) at the edges of the sheet relative to that within the central portion of the sheets. Greater bonded lengths in the middle of the sheet enable the sheet to pass through converting operations with minimal breaks, while having lower bonded lengths at the outer edges allows the user more easily to start a tear in the sheet at the perforation and to reduce the number of "ears" left on the roll as a result of detaching.
Borden Ladner Gervais Llp
Kimberly-Clark Corporation
Kimberly-Clark Worldwide Inc.
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