Patent ID: 6200299
Filing Date: 2001-03-13
Classification: A61F

Abstract:
A disposable diaper comprising:(a) an absorbent part formed by sandwiching an absorbent core between a topsheet and a backsheet, and having a first longitudinal edge and a second longitudinal edge;(b) a pair of ear parts projecting laterally in opposite directions from said longitudinal edges, each said ear part havingi) a side edge being generally parallel to said longitudinal edge,ii) an upper edge being generally perpendicular to said longitudinal edge,iii) a lower edge being nonparallel to said upper edge,iv) a stress relaxing structure extending laterally from said longitudinal edge, said stress relaxing structure being stretchable under a tensile force applied to said ear part and being capable of intercepting the transmission of said tensile force to said absorbent part,v) a first boundary line extending from said side edge to said upper edge, tangentially to said stress relaxing structure,vi) a waist lapping portion fastening component force distributing area being bounded by said first boundary line, said upper edge, and said side edge,vii) a first side edge section extending along said side edge and forming said waist fastening component force distributing area,viii) a second boundary line extending from said side edge to a point of intersection of said lower edge and said longitudinal edge, tangentially to said stress relaxing structure,ix) a leg lapping portion fastening component force distributing area being bounded by said second boundary line, said lower edge, and said side edge,x) a second edge section extending along said side edge and forming said leg fastening component force distributing area; andxi) a peripheral portion including said waist and said leg lapping portion fastening component force distributing areas, said waist and said leg lapping portion fastening component force distributing areas surrounding said stress relaxing structure, said peripheral portion being virtually unstretchable under said tensile force, and(c) a pair of fasteners, each said fastener being attached to said side edge of one of said ear part and overlapping at least part of said first side edge section and said second side edge section.