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SANITARY NAPKIN HAVING UPPER AND LOWER ABSORBENT CORES

  • US 20020013562A1
  • Filed: 09/03/1999
  • Published: 01/31/2002
  • Est. Priority Date: 09/08/1998
  • Status: Active Grant
First Claim
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1. A sanitary napkin including a liquid-pervious topsheet, a liquid-impervious backsheet and a liquid-absorbent core disposed between the topsheet and the backsheet, said sanitary napkin being contoured by a pair of opposite side edges extending longitudinally of said napkin and a pair of opposite ends extending between said pair of opposite side edges, wherein:

  • said topsheet is dimensioned to have a width larger than that of said backsheet and said topsheet is folded back inwardly of said napkin along a pair of folding lines extending longitudinally of said napkin and the folded portions are further folded outwardly of said napkin so as to form a pair of pleats and extend from the pleats to the respective side edges of said napkin along which said topsheet is bonded to said backsheet;

    said absorbent core includes a lower absorbent core and an upper absorbent core, said lower absorbent core is placed on an inner surface of said backsheet and extends between said opposite side edges and between said opposite ends of said napkin;

    said upper absorbent core is dimensioned to be shorter than said lower absorbent core and separably placed upon an inner surface of said lower absorbent core;

    said upper absorbent core is bonded to an inner surface of said topsheet so that said upper absorbent core is spaced from the opposite ends of said napkin and said pleats lie between the transversely opposite side edges of said lower absorbent core and the transversely opposite side edges of said upper absorbent core; and

    at least portions of said topsheet are provided along said opposite side edges of said upper absorbent core with elasticity being effective longitudinally of said napkin.

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