Stock material or miscellaneous articles – Structurally defined web or sheet – Including aperture
Patent
1996-07-08
1998-09-29
Watkins, William
Stock material or miscellaneous articles
Structurally defined web or sheet
Including aperture
428132, 428137, 604378, 604383, B32B 324, A61F 1346
Patent
active
058143890
ABSTRACT:
There is described a three-dimensional membrane generally of a thin plastic film which has apertures therein created by simultaneously perforating the film and pushing the material from the holes to one side of the apertures and piling it up to create an overall membrane thickness which is at least 10 times the original thickness of the film. It has particular application as a topsheet for sanitary napkins and the like.
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"Formed Films --The Hole Story" by William Ouellette presented at the IMPACT '86 Conference in Bal Harbour, Florida --Mar. 16-18, 1986.
"A New Coverstock for Disposable Products" by R. E. Cornelissen at the Edana's 1985 Milan Nonwovens Symposium at Milan, Italy.
"Apertured Film --The `Other` Nonwoven" by Francis J. Bouda presented at the INDEX '96 Congress in Geneva, Switzerland --Feb. 13-16, 1996.
Bouda Francis J.
Pantex, S.r.l.
Watkins William
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