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Sanitary napkin

  • US 6,371,948 B1
  • Filed: 04/30/1999
  • Issued: 04/16/2002
  • Est. Priority Date: 05/01/1998
  • Status: Expired due to Fees
First Claim
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1. A sanitary napkin having a longitudinal direction and a transverse direction being orthogonal to said longitudinal direction, said sanitary napkin comprising:

  • a liquid-pervious topsheet;

    a back side member which includes a liquid-impervious sheet;

    a liquid-absorbent core disposed between said liquid-pervious topsheet and said back side member; and

    a shape-retaining panel in contact with a lower surface of the liquid-absorbent core, said liquid-absorbent core produces an inverted V-shaped cross-section at a middle region of said longitudinal direction, said liquid-pervious topsheet contacting an upper surface of said liquid-absorbent core, said shape-retaining panel has a rigidity which is higher than a rigidity of said liquid-absorbent core, and produces an inverted V-shaped cross-section which is substantially identical to that of the liquid-absorbent core, said back side member extending outward horizontally beyond transversely opposite side edges of said inverted V-shaped cross-section produced by said liquid-absorbent core, said topsheet being bonded to an upper surface of said back side member in regions thereof which extend outward beyond said opposite side edges of said liquid-absorbent core, so as to form a triangular space between sail liquid-absorbent core and said back side member, said back side member extending outward beyond opposite side edges of said regions at which said topsheet is bonded to the upper surface of said back side member.

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