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Disposable diaper with three dimensional gathers

  • US 6,120,486 A
  • Filed: 06/04/1997
  • Issued: 09/19/2000
  • Est. Priority Date: 10/05/1995
  • Status: Expired due to Term
First Claim
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1. A disposable diaper comprising a liquid permeable topsheet, a liquid impermeable backsheet, and a liquid retentive absorbent member interposed between the topsheet and the backsheet, said absorbent member including first and second substantially planar sides, said topsheet being positioned on said first substantially planar side, and having a pair of inner sheets which include continuous extensions of the backsheet and are provided at opposite longitudinal side portions of the disposable diaper on its topsheet side and on said first substantially planar side of said absorbent member such that longitudinal inner side edges of the inner sheets are positioned inwardly with respect to the longitudinal side edges of the absorbent member;

  • first elastically expansible members provided within first folded portions of said backsheet which are located between portions of the backsheet positioned on said second side of said absorbent member and each of the inner sheets to form leg gathers, and second elastically expansible members provided within second folded portions of said backsheet which include the inner side edges of each of the inner sheets, said second folded portions and said second expansible members form frill portion gathers;

    the topsheet and the inner sheets being attached together with respect to a region located within the longitudinal side edges of the absorbent member on said first substantially planar side of said absorbent member and the inner side edges of the inner sheets such that the frill portion gathers define free edges spaced from said topsheet, and approximate center portions of the frill portion gathers along the longitudinal direction thereof and inner portions located inwardly from the approximate centers of the leg gathers along the longitudinal direction thereof are connected together such that the frill portions and leg gathers are spaced from said topsheet, whereby said frill portions provide three-dimensional gathers which substantially reduce leakage of bodily secretions from the diaper.

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