Koyo Corporation

Munetada Matsumiya

Satoshi Katayama

Takehisa Mitsugi

Kazuya Ise

Atsuko Shirai

Takamasa Takagi

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.

Disposable undergarment and method for manufacturing disposable undergarment

A disposable pant type undergarment includes a ventral member, a dorsal member and a crotch member that bridges the ventral member and the dorsal member. A crotch edge of the ventral member and the dorsal member each includes right and left edge lines, right and left tilted lines and a central line. The edge lines are approximately parallel in a waist-around direction. Nearer the central line, a distance between a waist opening of the undergarment and the tilted lines of the ventral member is shorter, and a distance between the waist opening and the tilted lines of the dorsal member is longer. Tilted portions of a leg-surrounding elastic body extend in a leaving direction from the crotch edge of the ventral member and extend into an area overlapped with the ventral member and the crotch member.

Growing community of inventors

Kanagawa, Japan

Munetada Matsumiya