Back to results
US 5,487,736 AGranted
Multi-topography substrate having selectively disposed osmotic absorbent, incorporation thereof in a disposable absorbent article and process of manufacture therefor
AssigneeThe Procter & Gamble Company
InventorDean Van Phan
Life of this patent
Estimating the term…
Abstract
An absorbent structure having both osmotic and capillary absorbing capabilities. The substrate has a topography comprising two different elevations. The osmotic absorbent structure may include superabsorbents and is preferentially applied to the high elevation regions of the substrate. This arrangement provides for better acquisition of liquids without gel blocking. The absorbent structure is suitable for use in the cores of disposable absorbent articles.
Claims19
An absorbent structure comprising:
- a fibrous capillary substrate having two elevations, a first elevation defining a first pattern and a second elevation defining a second pattern, each said elevation comprising one or more regions, said regions having two different densities, a relatively high density and a relatively low density, whereby said fibers of said substrate are deflected in said regions having said low density;
- and
- an immobilized osmotic absorbent cured in situ from a liquid precursor and disposed on one or more of said regions corresponding to one of said elevations of said capillary substrate.
A through-air-dried absorbent structure comprising:
- a fibrous capillary substrate having an essentially continuous network and discrete regions distributed therein, said essentially continuous network defining a first elevation and a plurality of said discrete regions defining a second elevation, said regions having two different densities, a relatively high density and a relatively low density, whereby said fibers of said substrate are deflected in said regions having said low density;
- and
- an immobilized osmotic absorbent cured in situ from a liquid precursor and disposed on one or more of said discrete regions.
Dependencies are inferred from the claim text.