Patent ID: 8900211

Claim:
A disposable wearing article comprising a front waist region, a rear waist region and a crotch region, each having an inner surface facing a wearer's skin and an outer surface facing a wearer's garment, wherein the front and rear waist regions are elastically contractible in a waist circumferential direction and the inner surfaces of the front and rear waist regions are at least partially formed of elastically contractible elastic sheets, wherein: the elastic sheets are formed of a mixture of elastically stretchable elastic fibers and inelastically stretchable inelastic fibers; ridges and grooves being convex and concave with respect to the wearer's skin are formed of the elastic fibers and the inelastic fibers; the ridges and the grooves extend in a vertical direction of the wearing article and arranged alternately in a waist circumferential direction; and the elastic sheets have a thickness in the ridges repetitively reduced and restored as the elastic sheets repeat elastic stretch and contraction in the waist circumferential direction.