Patent ID: 6458114
Filing Date: 2002-10-01
Classification: A61F

Abstract:
A disposable diaper having an absorbent body, comprising:a liquid-pervious topsheet; a liquid-impervious backsheet; a liquid-absorbent core disposed between the liquid-pervious topsheet and the liquid-impervious backsheet; and a first liquid resistance barrier wall annularly extending above a top surface of said topsheet, the absorbent body having transversely opposite side edge portions and longitudinally opposed end portions, said first liquid-resistant barrier wall being joined along a lower peripheral edge thereof to the remainder of said absorbent body so as to define a first opening substantially in a central zone of said first liquid-resistant barrier wall, and an upper peripheral edge of said first liquid-resistant barrier wall being elastically stretchable along said first opening, said first liquid-resistant barrier wall lying in one of a front half section of said absorbent body extending from the vicinity of a center line bisecting a longitudinal dimension of said absorbent body toward a front one of said end portions of said absorbent body or of a rear half section of the absorbent body extending from the vicinity of said center line toward a rear one of said end portions of said absorbent body; said disposable diaper further comprising a second liquid-resistant barrier wall annularly extending around said first liquid-resistant barrier wall and lying in said front and rear half sections of said absorbent body, said second liquid-resistant barrier wall having a lower peripheral edge portion joined to a peripheral edge of said absorbent body so as to define a second opening substantially in a central zone of said second liquid-resistant barrier wall and an upper peripheral edge portion thereof with elastic strechability along said second opening.