Patent ID: 6913599
Filing Date: 2005-07-05
Classification: A61F

Abstract:
1. A disposable undergarment having longitudinally opposite end regions and transversely opposite side regions and comprising: a liquid-impervious base sheet defining a non-skin-facing side; a liquid-absorbent panel placed upon said base sheet; a liquid-previous topsheet placed upon said liquid-absorbent panel and defining a skin-facing side opposed to said non-skin-facing side; and an elastically stretchable and substantially liquid-impervious skin-facing sheet attached to said skin-facing side of said liquid-pervious topsheet so as to cover said liquid-absorbent panel, said skin-facing sheet having: longitudinally opposite end regions of said liquid-pervious topsheet and said skin-facing sheet being substantially coextensive in a transverse direction, a longitudinal central portion of the skin-facing sheet having a width that is smaller than a width of an underlying central portion of the liquid-pervious topsheet so that transverse opposite outer terminal side edges of the liquid-pervious topsheet and of said skin-facing sheet at the longitudinal central portion are not coextensive with one another in the transverse direction and the transverse opposite outer terminal side edges of the skin-facing sheet at the longitudinal central portion are spaced apart upward and inward from the transverse opposite outer terminal side edges of the liquid-pervious topsheet at the longitudinal central portion as said undergarment is curved in a longitudinal direction thereof with the skin-facing side of said liquid-pervious sheet inside, a basis weight of said skin-facing sheet being higher in said transversely opposite side regions defining the leg-holes than a basis weight of a remaining region of said skin-facing sheet and a tensile stress of said skin-facing sheet is higher than a tensile stress of said transversely opposite side regions defining the leg-holes than in the remaining region.