Abstract: A crotch member of a disposable under garment is joined to central portions of a symmetrical ventral member and a symmetrical dorsal member. A crotch side edge of the ventral member includes a recessed line symmetrically recessed toward a waist side edge between a center line and left and right end portions of the ventral member. The recessed line includes bottom portions each closest to the waist side edge located at a position closer to the left and right end portions than the center line. A crotch side edge of the dorsal member include a protruding line symmetrically protruding away from a waist side edge between a centerline and left and right end portions of the dorsal member. The protruding line includes top portions farthest away from the waist side edge located at a position closer to the centerline than the left and right end portions.

Abstract: An absorbent pad includes an absorber, a hook member and a hook member fixing region. The hook member has a front-back length between 20 and 50 mm and a width between 10 and 20 mm. The hook member includes a collection of hook pieces that are detachably hooked on a wearing article. The hook member fixing region has a front-back length between 20 and 50 mm and a width between 30 and 70 mm. A plurality of the hook members are fixed in parallel with an interval on the hook member fixing region of less than 50 mm in width. The hook member fixing regions are located on a surface of the absorbent pad facing a wearing article at locations of a front end and a back end of the absorber and at a center of the absorbent pad in a left-right direction.

Abstract: An absorbent article that includes a stretchable region made of an elastic sheet. The elastic sheet includes a first non-stretchable sheet, an elastic film and a second non-stretchable sheet. The first non-stretchable sheet, the elastic film and the second non-stretchable sheet are laminated in this order. The elastic sheet includes joining-opening sections formed by joining the first non-stretchable sheet and the second non-stretchable sheet. The elastic film includes an opening at each of the joining-opening sections. The opening is formed while the elastic film is stretched in a stretchable direction. Each of the joining-opening sections includes the opening and a joint. The joining-opening sections include an adjacent joining-opening section that includes at least two joining-opening sections that are arranged adjacently in a direction inclined with respect to the stretchable direction.

Abstract: A crotch member of a disposable under garment is joined to central portions of a symmetrical ventral member and a symmetrical dorsal member. A crotch side edge of the ventral member includes a recessed line symmetrically recessed toward a waist side edge between a center line and left and right end portions of the ventral member. The recessed line includes bottom portions each closest to the waist side edge located at a position closer to the left and right end portions than the center line. A crotch side edge of the dorsal member include a protruding line symmetrically protruding away from a waist side edge between a centerline and left and right end portions of the dorsal member. The protruding line includes top portions farthest away from the waist side edge located at a position closer to the centerline than the left and right end portions.

Abstract: A crotch member for a disposable undergarment includes: a ventral bonded portion; a dorsal bonded portion; at least one pair of crotch side edge elastic members, that extend and are bonded along to left and right side edges of the crotch member with a strip shape, and are separated from the ventral bonded portion and the dorsal bonded portion; and at least one pair of ventral connection elastic members, that are bonded to the crotch member at a position closer to the center than the crotch side edge elastic members, that overlap with the ventral bonded portion at a ventral end portion, that do not overlap with the dorsal bonded portion at a dorsal end portion, and have higher tensile force than the crotch side edge elastic members.

Abstract: A disposable undergarment includes a ventral member and a dorsal member that are bonded to each other at both bonded portions, a crotch member that is bonded to and bridges between both center portions of the ventral member and the dorsal member, a waist opening, left and right leg openings, and a first elastic member that extends upward toward an upper edge from lower portions of the bonded portions of the ventral member to a center in a waist-around direction. The disposable undergarment has a shape widening from the waist opening toward the left and the right leg opening on a lower side. The upper edge of the ventral member has a center portion disposed lower than an upper edge of the dorsal member.

Abstract: An outer packaging sheet in a paper diaper is provided with: hip elastic bands including a plurality of hip elastic members arranged from one joint end portion individually at a front and at a back to the other joint end portion; curved elastic bands including a plurality of curved elastic members extending from one of the joint end portions individually at the front and at the back to the side of a crotch portion and arranged over the other joint end portion while bypassing that crotch portion; and an absorbent body arranged in the crotch portion. The curved elastic bands are formed to cover such areas of the outer packaging sheet substantially as are enclosed by the edge portions of the outer packaging sheet, the absorbent body and the hip elastic bands.

Abstract: To prevent a paper diaper reliably from slipping down at a body liquid absorbing time, and to bring the paper diaper into close contact along the line of a body thereby to improve the wearing comfortableness. An armoring sheet includes: waist portion elastic members, and so on; hip surrounding elastic member groups, and so on arranged at the front F and the back B; and a plurality of curved elastic member groups extending, at each of the front F and the back B, from one side jointing edge to the crotch side, reaching the other side jointing edge while passing over the crotch side, and arranged at a spacing without intersecting with each other. The curved elastic member groups have their starting/trailing ends connected at a predetermined spacing substantially over the range from the upper portion to the lower portion of the side portion jointing edge.

Abstract: To prevent a paper diaper reliably from slipping down at a body liquid absorbing time, and to bring the paper diaper into close contact along the line of a body thereby to improve the wearing comfortableness. An armoring sheet includes: waist portion elastic members, and so on; hip surrounding elastic member groups, and so on arranged at the front F and the back B; and a plurality of curved elastic member groups extending, at each of the front F and the back B, from one side jointing edge to the crotch side, reaching the other side jointing edge while bypassing the crotch side, and arranged at a spacing without intersecting with each other. The curved elastic member groups have their starting/trailing ends connected at a predetermined spacing substantially over the range from the upper portion to the lower portion of the side portion jointing edge.

Abstract: An outer packaging sheet in a paper diaper is provided with: hip elastic bands including a plurality of hip elastic members arranged from one joint end portion individually at a front and at a back to the other joint end portion; curved elastic bands including a plurality of curved elastic members extending from one of the joint end portions individually at the front and at the back to the side of a crotch portion and arranged over the other joint end portion while bypassing that crotch portion; and an absorbent body arranged in the crotch portion. The curved elastic bands are formed to cover such areas of the outer packaging sheet substantially as are enclosed by the edge portions of the outer packaging sheet, the absorbent body and the hip elastic bands.