Topsheet systems for absorbent articles exhibiting improved hydrophilicity gradients
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United States of America Patent
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Sep 18, 2001
Grant Date -
N/A
app pub date -
Oct 30, 1998
filing date -
Oct 30, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apertured polymeric film web having a first surface, a second surface generally parallel to and spaced apart from said first surface, and a plurality of fluid passageways extending between the first surface and the second surface to place the first surface and the second surface in fluid communication with one another. The web is formed of a polymeric film comprising at least one bulk modified layer, the bulk modified layer comprising a substantially homogeneous, stabilized dispersion comprising a comparatively low surface energy material in a polymeric material. The comparatively low surface energy material, referred to herein as a hydrophobic additive, imparts hydrophobicity to the web's first surface, thereby promoting enhanced effectiveness in transporting fluid away from the first surface of the web, particularly when used in combination with a hydrophilic adhesive applied to the web's second surface in a topsheet system of the present invention.
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