Underpants-type disposable diaper

An underpants-type disposable diaper comprising:

• a front side outer member configuring at least a lower torso portion of a front body and a back side outer member configuring at least a lower torso portion of a back body, the front side outer member and the back side outer member being separated from each other and spaced apart in a front-back direction in a middle in the front-back direction;
• an inner member including a liquid pervious top sheet located on a front surface side, a liquid impervious sheet formed of a resin film located on a back surface side, and an absorbent body interposed therebetween, extending in the front-back direction from the front side outer member to the back side outer member and being joined to each of the front side outer member and the back side outer member, a waist opening and a pair of left and right leg openings being formed by joining both side portions of the front side outer member and both side portions of the back side outer member, respectively;
• and
• a display sheet formed of a resin film and being provided between at least one of the front side outer member and the back side outer member and the inner member;
• wherein a perforated nonwoven fabric provided with a plurality of holes having intervals and penetrating a front and a back is interposed at least from a crotch side edge of the at least one of the front side outer member and the back side outer member overlapping the display sheet, toward a side of the waist opening, to a region between the display sheet and the liquid impervious sheet;
• wherein an internal surface and an external surface of the perforated nonwoven fabric are bonded to facing surfaces, respectively, through a hot melt adhesive;
• wherein an area around each hole in the perforated nonwoven fabric is warped toward the liquid impervious sheet to form a warped portion;
• wherein at least a tip portion of the warped portion in the perforated nonwoven fabric has a bonded portion stuck to a facing surface on the side of the liquid impervious sheet through the hot melt adhesive;
• and
• wherein a portion other than the bonded portion in the perforated nonwoven fabric is not bonded to the facing surface on the side of the liquid impervious sheet.