PROBLEM TO BE SOLVED: To provide a disposable diaper further reducing stimulation to skins around a leg-encirculating parts of a wearer while surely preventing the leakage of excretory substances.SOLUTION: A disposable diaper 10 has sheet-like leg-encircling extendable parts 100 which are arranged in side end parts of side flaps 70 in a product width direction W, which extend in a product longitudinal direction L, and at least parts of which are extendable along at least the product longitudinal direction. End fringes of the leg-encircling extendable parts 100 in a product width direction W is formed in a meandering-shape in the product longitudinal direction L, the distance between the end fringes of the leg-encircling extendable parts 100 in the product width direction W and a center line CL changes from a front abdomen encircling part 20 to a rear abdomen encircling part 30, and the convex parts 130 formed by the changing quantity of the distance changing from increase to decrease are arranged in a crotch part 25.COPYRIGHT: (C)2014,JPO&INPIT【課題】排泄物の漏れを確実に防止しつつ、着用者の脚回り部周辺の肌への刺激をさらに低減した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、サイドフラップ70の製品幅方向Wにおける側端部に設けられ、製品長手方向Lに延在するとともに、少なくとも製品長手方向Lに沿って一部が伸縮可能なシート状の脚回り伸縮部100を備える。脚回り伸縮部100の製品幅方向Wにおける端縁は、製品長手方向Lにおいて蛇行状であり、脚回り伸縮部100の製品幅方向Wにおける端縁と、中心線CLとの距離は、前胴回り部20から後胴回り部30に向かうに連れて変化し、当該距離の変化量が増加から減少に転じることによって形成される凸部130は、股下部25に設けられる。【選択図】図1
