Patent ID: 8840599

Claim:
A disposable diaper comprising: an outer part having a crotch portion and ventral and back side portions extending to front and back sides of the crotch portion, respectively, the outer part comprising an inner sheet and an outer sheet, and at least a portion of the inner sheet being fixed to the outer sheet, wherein the inner sheet is fixed to the outer sheet in the ventral and back side portions forming first and second fixed sections, wherein the inner sheet between the first and second fixed sections is an unfixed section; an inner part provided on an inner surface of the outer part, the inner part having an absorbent body at the crotch portion, and an elongated elastic member fixed in a stretched state between the inner and outer sheets on both sides in a width direction so as to extend from the ventral side portion through the crotch portion to the back side portion, wherein the elongated elastic member is continuously provided from the first fixed section to the second fixed section, and wherein the unfixed section is between the first and second fixed sections, wherein the inner sheet comprises an unfixed section between the first and second fixed sections, and in the unfixed section, the elongated elastic member is not fixed to the inner or outer sheet, and wherein, in the fixed sections in which the inner and outer sheets are fixed, the elongated elastic member is fixed to the inner and outer sheets.