PROBLEM TO BE SOLVED: To provide an absorbent article that is attached to underwear or disposable diaper in order to absorb urine and is used, in which the leakproof action of leakproof wall parts is exhibited reliably.SOLUTION: A body part 1s of an absorbent article 1 comprises an absorbent core 11 and a liquid permeable surface sheet 21, and leakproof wall parts 40 are provided at each end in the width direction of the body part, respectively. A height regulation structure is provided for regulating a height in a vertical direction of a middle position of a skin side face of the body part at the lapse of three minutes after completion of third dropping treatment becomes lower than a height in the vertical direction of the leakproof wall part in a cross section along the width direction including the middle position, when three times of dropping treatment for dropping simulated urine of 60 g at a dropping rate of 20 g/sec are performed at five minute intervals in the middle position in both directions of a width direction and a longitudinal direction of the body part, in such a state that the absorbent article under the unloaded condition where no external force acts thereon is left at rest on a horizontal plane while the skin side is directed upward.COPYRIGHT: (C)2015,JPO&INPIT【課題】尿を吸収すべく下着又は使い捨ておむつに取り付けられて使用される吸収性物品において、防漏壁部の防漏作用を確実に発揮させる。【解決手段】吸収性コア11と、液透過性の表面シート21と、を有する吸収性物品1の本体部1sにおいて、本体部の幅方向の各端部の位置にそれぞれ防漏壁部40が設けられる。外力が作用しない無負荷状態の吸収性物品を、肌側面が上方を向くようにしつつ水平面上に静置した状態において、本体部の幅方向及び長手方向の両方向における中央位置に、60gの模擬尿を、20g/secの滴下速度で滴下する3回の滴下処理を、5分の時間間隔をあけるようにしながら行った場合に、3回目の滴下処理が完了してから3分経過時における本体部の肌側面の中央位置の上下方向の高さが、中央位置を含む幅方向に沿った断面での防漏壁部の上下方向の高さよりも低くなるように規定する高さ規定構造を有する。【選択図】図7
