US 12,447,071 B2
Attachable-type disposable wearing article
Hiroki Matsuoka, Ehime (JP)
Assigned to Daio Paper Corporation, Ehime (JP)
Appl. No. 17/909,865
Filed by DAIO PAPER CORPORATION, Ehime (JP)
PCT Filed Mar. 9, 2021, PCT No. PCT/JP2021/009197
§ 371(c)(1), (2) Date Sep. 7, 2022,
PCT Pub. No. WO2021/193001, PCT Pub. Date Sep. 30, 2021.
Claims priority of application No. 2020-054786 (JP), filed on Mar. 25, 2020.
Prior Publication US 2024/0197546 A1, Jun. 20, 2024
Int. Cl. A61F 13/494 (2006.01); A61F 13/49 (2006.01)
CPC A61F 13/49466 (2013.01) [A61F 13/49011 (2013.01); A61F 2013/4948 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An attachable-type disposable wearing article comprising:
a crotch section containing a middle of front-back direction;
a ventral section extending forward from the middle in the front-back direction;
a dorsal section extending backward from the middle in the front-back direction;
an absorber body contained in a region including the crotch section;
an attaching part provided in each of opposed lateral portions of the dorsal section, and to be detachably attached to an exterior face of the ventral section; and
an end flap extending backward of a back edge of the absorber body,
wherein the end flap includes a plurality of elongate waist elastic members each extending in a width direction and arranged at intervals in the front-back direction, a first sheet layer adjacent to a top side of the waist elastic members, and a second sheet layer adjacent to an underside of the waist elastic members,
wherein a region containing the waist elastic members has a waist stretchable region which is stretchable in the width direction and contracts in the width direction together with the waist elastic members,
wherein joined zones of the first sheet layer and the second sheet layer provided continuously or intermittently from forward of the waist stretchable region to backward thereof and unjoined zones of the first sheet layer and the second sheet layer provided continuously from forward of the waist stretchable region to backward thereof are arranged alternately and repeatedly in the width direction,
wherein fixing portions in which the waist elastic members are fixed, at least in opposed end portions, to the first sheet layer and to the second sheet layer, are provided,
wherein, when the waist stretchable region is in the contracted state, the first sheet layer and the second sheet layer in the unjoined zones bulge in opposite directions to form, on a top face of the waist stretchable region, ridges extending continuously from forward of the waist stretchable region to backward thereof and repeated in the width direction, and
wherein at least one of the unjoined zones has opposed lateral edges with oblique portions extending at an inclination angle θ of 5 to 45 degrees with respect to the front-back direction.