Patent ID: 7758558

Claim:
A pants-type disposable wearing article, comprising: a longitudinal direction, a waist-surrounding direction orthogonal to said longitudinal direction, a chassis defining a front waist region, a rear waist region, a crotch region extending in said longitudinal direction between said front and rear waist regions, an elasticized waist-hole, and a pair of elasticized leg-holes, an absorbent structure extending on an inner surface of said chassis between said front and rear waist regions, and a plurality of auxiliary elastic members secured to said chassis in a stretched state and extending in said waist surrounding direction so as to cross said absorbent structure in at least one of said front and rear waist regions, each of said auxiliary elastic members having, in said waist surrounding direction, opposite end portions and a middle portion located between said opposite end portions, said opposite end portions being secured to said chassis in vicinities of transversely opposite side edges of the one of said front and rear waist regions while said middle portion being free of direct securement to said chassis in the one of said front and rear waist regions, wherein said chassis comprises an outer sheet and an inner sheet directly joined together at a plurality of joining sites; said plurality of auxiliary elastic members are interposed between said outer and inner sheets; said plurality of joining sites are distributed at least in an area of said absorbent structure in the one of front and rear waist regions, are spaced one from another by given space in said longitudinal direction and are located between the middle portions of said auxiliary elastic members; each of said auxiliary elastic members is entirely free of direct attachment to said chassis except at the opposite end portions of said auxiliary elastic member; and the joining sites are each in the form of a dot and comprise first joining sites arranged in the longitudinal direction in a middle zone of the absorbent structure, second joining sites arranged in the longitudinal direction on both sides of the first joining sites, and third joining sites arranged in the longitudinal direction on both sides of the second joining sites and in the vicinity of the transversely opposite side edges of the absorbent structure.