Absorbent article
AssigneeJohnson & Johnson
InventorRobert T. Elias
Life of this patent
Estimating the term…
Abstract
An absorbent article, such as a disposable diaper, is disclosed which includes a moisture permeable facing layer, a backing layer, and an absorbent layer disposed between said facing and backing layers and including at least one pocket containing a uniform admixture of discrete superabsorbent particles and discrete introfying particles.
Claims22
An absorbent article comprising a moisture-permeable first outer layer, an absorbent layer adjacent said outer layer, said absorbent layer including at least one discrete pocket therein, at least a portion of said pocket being moisture permeable, said pocket containing therewithin a substantially dry uniform admixture of discrete particulate water-insoluble hydrocolloid material and discrete water-insoluble introfying paticles, each of said introfying particles being physically separate from and not chemically or otherwise bound or joined to any of the hydrocolloid particles and which introfying particles maintain the particles of hydrocolloid material in spaced relationship relative to one another, and introfying particles having sufficient structural integrity to substantially retain their size and shape when subjected to compressive forces exerted by said hydrocolloid particles as they swell and expand when wetted and a second outer layer at the side of said absorbent layer opposite from said first outer layer.
A disposable diaper comprising a moisture-permeable facing layer, a moisture-impermeable backing layer, and an absorbent panel sandwiched between said facing and backing layers, said absorbent panel being a cellulosic fibrous batt of loosely compacted fibers and including a plurality of discrete pockets therein, at least a portion of each of said pockets being moisture permeable, and each of said pockets containing therewithin a substantially dry uniform admixture of discrete particles of water-insoluble hydrocolloid material and discrete water-insoluble introfying particles, each of said introfying particles being physically separate from and not chemically or otherwise bound or joined to any of said hydrocolloid particles, said particles of hydrocolloid material being retained in spaced relationship relative to one another by said discrete water-insoluble introfying particles disposed within each pocket, said introfying particles having sufficient structural integrity to substantially retain their size and shape when subjected to compressive forces exerted by said hydrocolloid particles as they well and expand when wetted.
An absorbent article comprising a moisture permeable facing layer, a backing layer, and an absorbent panel sandwiched between said facing and backing layers, said absorbent panel including at least one discrete pocket therein, at least a portion of said pocket being moisture permeable, and said pocket containing therewithin a plurality of substantially dry discrete particles of water-insoluble hydrocolloid material, said particles of hydrocolloid material being retained in spaced relationship relative to one another by discrete water-insoluble introfying particles disposed within said pocket, each of said introfying particles being physically separate from and not chemically or otherwise bound or joined to any of said hydrocolloid particles, said hydrocolloid particles and said introfying particles being present in said pocket in a uniform admixture which has a bulk volume from about 4 to 60 times as great as the bulk volume of said hydrocolloid particles therein.
An absorbent article comprising a moisture permeable facing layer, a backing layer, and an absorbent panel sandwiched between said facing and backing layers, said absorbent panel including at least one discrete pocket therein, at least a portion of said pocket being moisture permeable, and said pocket containing therewithin a plurality of substantially dry discrete particles of hydrocolloid material, said particles of hydrocolloid material being retained in spaced relationship relative to one another by discrete introfying particles disposed within said pocket, each of said introfying particles being physically separate from and not chemically or otherwise bound or joined to any of said hydrocolloid particles, said introfying particles having sufficient structural integrity to substantially retain their size and shape when subjected to compressive forces exerted by said hydrocolloid particles as they swell and expand when wetted, said hydrocolloid particles and said introfying particles being present in said pocket in a uniform admixture which has a bulk volume from about 4 to about 60 times as great as the bulk volume of the hydrocolloid particles therein.
Dependencies are inferred from the claim text.