PROBLEM TO BE SOLVED: To provide an underpants type disposable diaper allowing adjustment of a leg peripheral dimension.SOLUTION: This underpants type disposable diaper includes inner/outer junction parts 71, 72 respectively joining an overlap portion between an interior body 200 and a belly side exterior sheet 12F and an overlap portion between the interior body 200 and a back side exterior sheet 12B. The belly side and back side inner/outer junction parts 71, 72 are set as non-detachment junction parts 71 wherein end parts of a waist side does not detached, and portions of a crotch side are set as an attachment/detachment junction parts 72 attachable/detachable by attachment/detachment means 73.COPYRIGHT: (C)2013,JPO&INPIT【課題】脚周り寸法を調節可能なパンツタイプ使い捨ておむつを提供する。【解決手段】上記課題は、内装体200と腹側の外装シート12Fとの重なり部分、及び内装体200と背側の外装シート12Bとの重なり部分をそれぞれ接合する内外接合部71,72を有し、腹側及び背側の内外接合部71,72は、ウエスト側の端部が剥離しない非剥離接合部71とされるとともに、この剥離しない接合部よりも股間側の部分が着脱手段73により着脱可能な着脱接合部72とされている、ことを特徴とするパンツタイプ使い捨ておむつにより解決される。【選択図】図10
