| 摘要 |
[Problem] To prevent rupture of an elastic film when a pull-up disposable diaper is put on. [Solution] The problem is solved by providing a stretchable area (80) that can elastically stretch in the widthwise direction on at least either widthwise side of an outer body (20). In the stretchable area (80), an elastic film (30) is laminated between a first sheet layer (20A) comprising a nonwoven fabric and a second sheet layer (20B) comprising a nonwoven fabric, and, with the elastic film (30) extended in the stretching direction, the first sheet layer (20A) and the second sheet layer (20B) are joined via passage holes (31) formed in the elastic film (30) at numerous joining sections (40) set apart in both the stretching direction and the direction orthogonal thereto. The shape of the passage holes (31) in the natural-length state is an inclined configuration that is long in one direction and has an incline angle θ of 25-35 degrees. The incline angle θ is one of the angles of intersections between the lengthwise direction of the passage holes (31) and the widthwise direction of the diaper, and is the angle of intersection located toward the center in the widthwise direction. |
