Perforated films having channels with cutout portions capable of

Details Perforated films having channels with cutout portions capable of Perforated films having channels with cutout portions capable of

1995-10-19

1997-07-15

Watkins, William

Stock material or miscellaneous articles

Structurally defined web or sheet

Including aperture

428137, 428131, 428134, 428195, 428913, 604383, 604378, B32B 310, A61F 1352

Patent

active

056481420

ABSTRACT:
A polymeric film for use in absorbent structures comprises a planar surface having a frontside, a backside and a plurality of apertures. Walls extend from the perimeter of the apertures and outwardly from the backside. The walls and the backside form a capillary system on the backside. The walls form channels which connect the frontside of the film to the capillary system on the backside. The walls have at least one cut out portion extending the length of the walls. A fluid contacting the frontside of the film will spontaneously invert to the capillary system on the backside of the film through the cut out portions of the walls.

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