Disposable diaper having density and basis weight profiled absorbent core
AssigneeThe Procter & Gamble Company
InventorsMargaret H. Hasse, Mark J. Steinhardt
Life of this patent
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Abstract
A disposable diaper wherein a central portion of its absorbent core has a higher density and higher basis weight per unit area than longitudinally spaced end portions of the absorbent core. Such absorbent cores may comprise a mixture of hydrophilic fibers and discrete particles of a highly absorbent material such as, for example, hydrogel material.
Claims19
A disposable diaper comprising a liquid pervious topsheet, a liquid impervious backsheet, and an absorbent core disposed intermediate said topsheet and said backsheet, said absorbent core comprising two longitudinally spaced end portions and a central portion disposed intermediate said end portions, said central portion having a greater average density and a greater average basis weight than said end portions, the ratio of the average density of said central portion to the average density of said end portions is about equal to or greater than 2:1.
A disposable diaper comprising a liquid pervious topsheet, a liquid impervious backsheet, and an absorbent core disposed intermediate said topsheet and said backsheet, said absorbent core comprising two longitudinally spaced end portions and a central portion disposed intermediate said end portions, said central portion having a greater average density and a greater average basis weight than said end portions, and said absorbent core comprises a mixture of hydrophilic fibers and discrete particles of a highly absorbent particulate material having a fiber-to-particulate weight ratio of from about 70:30 to about 98:2.
Dependencies are inferred from the claim text.