PROBLEM TO BE SOLVED: To provide a disposable diaper having excellent external appearance when being worn and configured to adjust sizes of a waist opening and leg openings of a disposable diaper according to a body shape of a wearer.SOLUTION: An inner wrapper is formed of a liquid-permeable top sheet, a liquid-impermeable backside sheet, and an absorber between the top sheet and the backside sheet. An outer wrapper is formed of a front body sheet located at a front body of a wearer, and a back body sheet located at the back body of the wearer, where the front body sheet and the back body sheet are formed of a nonwoven fabric. The front body sheet and the back body sheet are fixed by side seal parts formed at both width-directional sides. Upper engagement parts that are composed of a plurality of upper engagement pins spaced prescribed interval apart in the vertical direction and vertically extend at prescribed intervals apart in the width direction, and lower engagement parts that are composed of a plurality of lower engagement pins and vertically extend at prescribed intervals apart in the width direction, are formed at outer surfaces of the side seal parts of the front body sheet. Upper folding lines of the upper engagement parts are formed outward in the width direction in a descending slope, and lower folding lines of the lower engagement parts are formed outward in the width direction in an ascending slope.SELECTED DRAWING: Figure 7COPYRIGHT: (C)2018,JPO&INPIT【課題】装着時における外観性に優れ、装着者の体形に合わせて使い捨ておむつのウエスト開口と脚開口のサイズを調整できる使い捨ておむつを提供する。【解決手段】内装体を、液透過性の表面シートと、液不透過性の裏面シートと、表面シートと裏面シートの間の吸収体で形成し、外装体を装着者の前身頃に位置する前身頃シートと、装着者の後身頃に位置する後身頃シートで形成し、前身頃シートと後身頃シートを不織布で形成し、前身頃シートと後身頃シートを幅方向の両側部に形成されたサイドシール部で固定し、前身頃シートのサイドシール部の外側面に、上下方向に所定の間隔を隔ててり離間した複数の上側係合ピンからなる幅方向に所定の間隔を有して上下方向に延在する上側係合部と複数の下側係合ピンからなる幅方向に所定の間隔を有して上下方向に延在する上側係合部を形成し、上側係合部の上側折曲げ線を幅方向外側に向けて下り傾斜に形成し、下側係合部の下側折曲げ線を幅方向外側に向けて上り傾斜に形成したことにより解決される。【選択図】図7
