Core for absorbent articles and method of making the same
OwnerDonald Sheldon, Frank Glauginventors
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Abstract
An absorbent core is provided for use in an absorbent article. The core includes a plurality of substantially continuous and coextensive filaments. At least some of the filaments have disposed on a surface thereof a layer comprising a superabsorbent material formed in place on the surface from a liquid superabsorbent polymer.
Claims43
An absorbent core for use in an absorbent article, the core comprising a plurality of substantially continuous and coextensive filaments, at least some of the filaments having disposed on a surface thereof a layer comprising a superabsorbent material formed in place on the surface from a liquid superabsorbent polymer.
A method of making an absorbent core for use in an absorbent article, the method comprising:
- a) expanding a tow comprising a plurality of substantially continuous and coextensive filaments, each filament having a surface;
- and
- b) forming, from a liquid superabsorbent polymer, a layer comprising a superabsorbent material on the surface of at least some of the filaments.
A system for making an absorbent core for use in an absorbent article, the system comprising:
- a) means for applying a liquid superabsorbent polymer to a tow comprising a plurality of substantially continuous and coextensive filaments, thereby forming a treated expanded tow comprising a liquid superabsorbent polymer coating on the surface of at least some of the filaments;
- and
- b) means for forming, from the liquid superabsorbent polymer coating, a layer comprising a superabsorbent material on said surface of said at least some of the filaments.
Dependencies are inferred from the claim text.