Perforated rolled paper or nonwoven products with variable bonde

Details Perforated rolled paper or nonwoven products with variable bonde Perforated rolled paper or nonwoven products with variable bonde

1994-12-14

1996-10-08

Krynski, William A.

Stock material or miscellaneous articles

Sheet, web, or layer weakened to permit separation through...

428 44, 428174, 428192, 428212, 206820, 383207, B65D 6528, G09F 300

Patent

active

055629644

ABSTRACT:
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 to more easily start a tear in the sheet at the perf line and reduce the number of "ears" left on the roll as a result of detaching.

REFERENCES:
patent: 3822588 (1971-07-01), Knight et al.
patent: 4214024 (1980-07-01), Jacobson
patent: 4238541 (1980-12-01), Burton
patent: 4457964 (1984-07-01), Kaminstein
patent: 4535950 (1985-08-01), Lisnyansky
patent: 4817883 (1989-04-01), Hoffmann et al.
patent: 4982845 (1991-01-01), Prascak et al.
patent: 5334126 (1994-08-01), Moll
patent: 5341824 (1994-08-01), Fletcher et al.
patent: 5372494 (1994-12-01), Vaughan

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