Patent ID: 7156830

Claim:
A disposable diaper comprising a fluid-permeable topsheet, a fluid-impermeable backsheet and a fluid-retentive central absorbent core interposed between said topsheet and said backsheet, said disposable diaper being formed in a substantially vertically elongated configuration and having a stomach side, a back side and a crotch region positioned between said stomach side and said back side, lateral second absorbent cores disposed at an outside region at opposite side edges of said central absorbent core at said crotch region along a longitudinal direction of said diaper, outer edges of the second absorbent cores being covered with a water-repellant sheet, elastic members disposed below said lateral second absorbent cores along the longitudinal direction of said diaper, a basis weight of an absorbent core disposed at an intermediate region between said central absorbent core and each of said lateral second absorbent cores is smaller than a basis weight of any of said absorbent cores located at the region where said central absorbent core is disposed and at the region where each of said lateral second absorbent cores is disposed, and a pair of axes of flexibility are formed on opposite side portions of said central absorbent core along a longitudinal direction, said axes of flexibility being formed at said central absorbent core at least in said crotch region.