Sanitary napkin having shaping means

• US 5,722,967 A
• Filed: 12/02/1996
• Issued: 03/03/1998
• Est. Priority Date: 09/21/1992
• Status: Expired due to Term

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Coles, Peter
• Primary Examiner(s): Weiss, John G.
• Assistant Examiner(s): O YONG, KI
• Application Number:
  US08/759,292
• Time in Patent Office: 456 Days
• Field of Search: 604/367, 604/368, 604/369, 604/374, 604/378, 604/379, 604/380, 604/387, 604/385, 604/400
• US Class Current: 604/385.04
• CPC Class Codes: A61F 13/47218 with a raised crotch region, e.g. hump
• CPC Class Codes: A61F 13/47263 with activating means, e.g. elastic, heat or chemical activatable means
• CPC Class Codes: A61F 13/535 inhomogeneous in the plane of the pad, e.g. core absorbent layers being of different sizes A61F13/5323, A61F13/537 take precedence
• CPC Class Codes: A61F 13/536 having discontinuous areas of compression
• CPC Class Codes: A61F 13/539 characterised by the connection of the absorbent layers with each other or with the outer layers
• CPC Class Codes: A61F 2013/455 having a "W" shape

Abstract

In a sanitary napkin, longitudinal score lines applied to the core and longitudinal glue lines located adjacent to the score lines, cause controlled deformation of the sanitary napkin'"'"'s absorbent core upon lateral compression and provide increased resiliency for the sanitary napkin to return to its undeformed state when the compressive forces are removed.

Claims

1. A sanitary napkin for placement in a wearer'"'"'s undergarment, comprising;

a liquid pervious topsheet;

a liquid impervious backsheet joined to said topsheet, said backsheet having a garment facing surface facing away from said topsheet; and

an absorbent core positioned between said topsheet and said backsheet, said absorbent core having a longitudinal centerline, a garment facing surface adjacent to said backsheet, a body facing surface being adjacent to said topsheet, and two axes of flexibility, one axis of flexibility extending on each side of the said longitudinal centerline and being substantially parallel thereto, said axes of flexibility defining a central part of said absorbent core wherein the stiffness of said absorbent core is reduced along the axes of flexibility, said garment facing surface of said core being joined to said backsheet along two strips of adhesive, said adhesive strips being spatially opposed and positioned on each side of said longitudinal centerline outwardly from said central part of said absorbent core,

a pair of adhesive strips for adhesively attaching said garment facing surface of said backsheet to a wearer'"'"'s garment, said adhesive strips being spatially opposed and extending along and substantially outboard of said axes of flexibility.