PROBLEM TO BE SOLVED: To provide a disposable diaper capable of covering properly the body of a wearer, by deforming an absorbent core along the crotch of the body.SOLUTION: A disposable diaper (10) has an inseam elastic part (41) expanding and contracting in a cross direction (L) in an area overlapped with an absorbent core (31) in an inseam area (S3), and a center high rigidity part (71) having higher rigidity than a peripheral area in the inseam area, and extending to the furthermore front side with respect to the inseam elastic part. The inseam elastic part is extended to the furthermore rear side with respect to the high rigidity part on both sides rather than the center in the width direction of the center high rigidity part. The absorbent core has a first area (R41) where the inseam elastic part is arranged on the furthermore rear side with respect to the center high rigidity part, a second area (R42) where the high rigidity part is overlapped with the inseam elastic part in the thickness direction or in the width direction, and a third area (R43) where the high rigidity part is arranged on the furthermore front side with respect to the inseam elastic part.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2020,JPO&INPIT【課題】身体の股間に沿うように吸収コアを変形させ、着用者の身体を適切に覆うことができる使い捨ておむつを提供する。【解決手段】使い捨ておむつ(10)は、股下域(S3)の吸収コア(31)と重なる領域において前後方向(L)に伸縮する股下伸縮部(41)と、股下域において周囲の領域よりも剛性が高く、股下伸縮部よりも前側に延出した中央高剛性部(71)と、を有する。股下伸縮部は、中央高剛性部の幅方向の中心よりも両側において高剛性部よりも後側に延出している。吸収コアは、中央高剛性部よりも後側において股下伸縮部が配置された第１領域(R41)と、高剛性部と股下伸縮部が厚さ方向又は幅方向において重なった第２領域(R42)と、股下伸縮部よりも前側において高剛性部が配置された第３領域(R43)と、を有する。【選択図】図２
