Absorbent structure having three-dimensional topography on upper and lower surfaces
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United States of America Patent
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Jul 3, 2012
Grant Date -
Dec 16, 2004
app pub date -
Jun 13, 2003
filing date -
Jun 13, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An absorbent structure having a longitudinal axis, a lateral axis, a z-direction axis normal to the longitudinal and lateral axes, longitudinally opposite ends and laterally opposite side edges. An upper surface of the absorbent structure has a three-dimensional topography relative to the longitudinal and lateral axes and defines a plurality of peaks and valleys of the upper surface relative to the z-direction. A lower surface of the absorbent structure has a three-dimensional topography relative to the longitudinal and lateral axes and defines a plurality of the peaks and valleys of the lower surface relative to the z-direction. The absorbent structure has a projected area as determined by a Topography Analysis Method, and the upper surface of the absorbent structure has a vertical area as determined by the Topography Analysis Method of at least about 0.1 cm2 per 1.0 cm2 projected area of the absorbent structure.
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