PROBLEM TO BE SOLVED: To provide a disposable diaper having excellent external appearance when being worn by forming engagement parts at outer surfaces of side seal parts of a front body sheet of an outer wrapper of a disposable diaper.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 width-directional both sides, and engagement parts composed of a plurality of engagement pins and vertically extending at prescribed intervals apart in the width direction are formed at outer surfaces of the side seal parts of the front body sheet.SELECTED DRAWING: Figure 7COPYRIGHT: (C)2018,JPO&INPIT【課題】使い捨ておむつの外装体の前身頃シートのサイドシール部の外面に係合部を形成して、装着時において外観性が高い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複数の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係合部を形成したことにより解決される。【選択図】図7
