PROBLEM TO BE SOLVED: To provide a disposable pants-type diaper in which a girth part is folded along a waist opening edge, and the folding of the girth part can be maintained easily.SOLUTION: A disposable pants-type diaper 1 is formed to a pant configuration that has a waist opening edge 2 and a pair of leg opening edges 3, wherein a girth part 6 between the waist opening edge 2 and the leg opening edges 3 is folded like a bellows shape according to the waist opening edge 2 so that the waist opening edge 2 may become outside most to form a folding part 7, an elastic member 10 is disposed in the most outside strip that is in the most outside of the folding part 7 according to the waist opening edge 2, and the elastic member is not disposed in an strip that is inside than the most outside strip of the folding part 7, or an elastic member 11 is disposed so that stretch stress may become smaller than that of the most outside strip.COPYRIGHT: (C)2014,JPO&INPIT【課題】胴周り部がウェスト開口縁に沿って折り畳まれた使い捨てパンツ型おむつであって、胴周り部の折り畳みが維持されやすい使い捨てパンツ型おむつを提供する。【解決手段】ウェスト開口縁2と一対の脚開口縁3を有するパンツ形状に形成された使い捨てパンツ型おむつ1であって、ウェスト開口縁2と脚開口縁3の間の胴周り部6は、ウェスト開口縁2が最も外側になるようにウェスト開口縁2に沿って蛇腹状に畳まれて折り畳み部7を形成し、折り畳み部7の最も外側にある最外帯状部分にウェスト開口縁2に沿って弾性部材10が設けられ、折り畳み部7の最外帯状部分よりも内側にある帯状部分は、弾性部材が設けられない、または、最外帯状部分よりも伸長応力が小さくなるように弾性部材11が設けられている。【選択図】図2
