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AssigneeMinnesota Mining and Manufacturing Company
InventorsRaymond P. Johnston, Leigh E. Wood, Allen L. Noreen
Estimating the term…
Absorbent article comprising an optional liquid permeable topsheet, an optional, sometimes liquid impermeable, backsheet, an absorbent core disposed between the topsheet and backsheet, if any, and at least one liquid management member which comprises a film having at least one microstructure-bearing hydrophilic surface that promotes rapid directional spreading of liquids, the liquid management member and core being in contact. Also, liquid management members which comprise a film having at least one microstructure-bearing hydrophilic surface that promotes directional spreading of liquids. The surface has a plurality of V-shaped grooves having an angular width of Alpha, Alpha being between about 10.degree. and about 120.degree.. The hydrophilic surface has a contact angle with water of Theta, Theta being equal to or less than (90.degree.-Alpha/2).
An absorbent article comprising a liquid permeable topsheet, a backsheet, and an absorbent core disposed between said topsheet and said backsheet, wherein said article comprises at least one liquid management member which comprises a film of impermeable material having at least one microstructure-bearing hydrophilic surface with a plurality of channels therein that promotes direction spreading of liquids, each of said channels having at least one notch extending parallel to the longitudinal axis of the channel having a radius of curvature of about 25 microns or less, said hydrophilic surface and said absorbent core being in contact.
An absorbent article comprising a liquid permeable topsheet, a backsheet, and an absorbent core disposed between said topsheet and said backsheet, wherein said article comprises at least one liquid management member which comprises a film of impermeable material having at least one microstructure-bearing-hydrophalic surface with a plurality of V-shaped grooves therein that promotes direction spreading of liquids, said hydrophilic surface and said absorbent core being in contact.
An absorbent article comprising an absorbent mass and at least one liquid management member which comprises a film of impermeable material having at least one microstructure-bearing hydrophilic surface with a plurality of channels therein that promotes direction spreading of liquids each of, said channels having at least one notch extending parallel to the longitudinal axis of the channel having a radius of curvature of about 25 microns or less, said hydrophilic surface and said absorbent core being in contact.
An absorbent article comprising a liquid permeable topsheet, a backsheet, and an absorbent core disposed between said topsheet and said backsheet, wherein said article comprises at least on a liquid management member which comprises a sheet having at least one microstructure-bearing hydrophilic surface with a plurality of channels therein that promotes direction spreading of liquids, said hydrophic surface and said absorbent core being in contact said hydrophilic surface disposed on the interior surface of said backsheet.
Dependencies are inferred from the claim text.