Absorbent Article Containing a Wetlaid Unitary Stratified Composite
Patent #: 6,521,812
Inventor(s): Peter A. Graef; Colin Elston; Daniel T. Bunker; Fred B. Howard; Jeffrey D. Mathews; Shahrokh A. Naieni and Charles E. Miller
Company: Weyerhaeuser Company
An absorbent article, comprising a liquid-pervious topsheet, a wetlaid absorbent composite, with a first and second stratum and a transition zone intermediate and coextensive with the first and second stratum has been patented. The first stratum comprises hydrophobic fibers and a binder; the second stratum comprising a binder and fibers selected from the group consisting of hydrophilic fibers, hydrophobic fibers, and mixtures thereof; and the transition zone comprising fibers from the first stratum and the second stratum commingled substantially uniformly across the composite's width and along the composite's length; (c) a storage stratum comprising an absorbent fibrous material; (d) an intermediate stratum interposed between the absorbent composite and the storage stratum; and (e) a liquid impervious backsheet.
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