Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
April 17, 2012
Patent Application Number
12366825
Date Filed
February 6, 2009
Patent Citations Received
Patent Primary Examiner
Patent abstract
A method for making apertures in a precursor web using a forming apparatus is provided where the web comprises a film having molecular orientation and the forming apparatus comprises an arrangement of teeth. The orientation of the arrangement of teeth and the molecular orientation of the film are predetermined and modified to provide a relative angle between the orientation of the teeth and the molecular orientation of the film. Apertures formed in the precursor web material have a length and width exhibiting a minimal aspect ratio.
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