Integrated absorbent structures with density and liquid affinity gradients
AssigneeMcNeil-PPC, Inc.
InventorChing-Yun M. Yang
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Abstract
There is provided by this invention a least three integrated regions, each region having wherein the density and fluid affinity of the composite continuously increases from top to bottom thereby facilitating effective fluid transport and efficient utilization of storage capacity. An additional layer of SA and tissue may be provided to the absorbent product to provide an absorbent structure with dry feel and low stain. Methods of forming integrated, multi-layered absorbent composites and structures comprising at least three regions wherein each region has distinct density and fluid affinity gradients and wherein the density and fluid affinity of the composite continuously increases from top to bottom, are also provided herein.
Claims4
An absorbent composite comprising at least three integrated layers, including a top layer, a bottom layer, and a middle layer between the top layer and the bottom layer, each layer having density and fluid affinity gradients that are different from the other layers, wherein said density and fluid affinity continuously increase from top to bottom of said composite.
Dependencies are inferred from the claim text.