The present invention filth is hardly spilled on the periphery, the manufacturing process is not Kakekara the trouble to simple mounting, and it is possible to easily remove the slack in the waist of time of mounting, to provide a disposable diaper to reduce the foreign body discomfort when worn . The invention relates to a band portion to the upper edge, the thermoplastic resin sheet in which the absorbent sheet is lined on the inner surface, and a half fold in the absorbent sheet on the inside, and as one of the sheets the ventral and dorsal to the other When set to the side becomes a band tightening the waist by connecting the left and right side edges detachably to each other in the ventral band portion and the back side band portion, the concave of the left and right sides of the thermoplastic resin sheet central portion side edge portion becomes a clearance. The plurality of transverse wrinkles column opposite Yokoshiwa column wrinkles surface exposed on the surface of the total width over a length of heat-shrinkable thermoplastic resin films of which is formed on the left and right side edges of the thermoplastic resin sheet central portion is molten to wear and, by heating shrinkage treatment, so as to form a concave filth reservoir. .BACKGROUND【課題】汚物が周縁にこぼれにくく、製造工程が簡単で装着に手間が掛からず、かつ装着時の胴周りの弛みを簡単に除去でき、装着時の異物不快感を軽減する使い捨ておむつを提供する。【解決手段】上縁にバンド部を有し、内面に吸収シートが内張りされた熱可塑性樹脂シートを、吸収シートを内側にして半折して、一方のシートを腹側部とし、他方を背側部としたとき、腹側部バンド部及び背側部バンド部の左右側縁をそれぞれ互いに着脱自在に連結することによって胴周りを緊縮するバンドとなり、熱可塑性樹脂シート中央部の左右両側の凹状側縁部が隙間となる。熱可塑性樹脂シート中央部の左右両側縁に形成された複数の横皺列の反対側の表面に露出した皺面に横皺列の総幅以上の長さの熱収縮性熱可塑性樹脂フィルムを融着し、加熱収縮処理することにより、凹状汚物溜まり部を形成する。【選択図】図1
