公开(公告)号：US20240252367A1

公开(公告)日：2024-08-01

申请号：US18560529

申请日：2022-03-01

Applicant: DAIO PAPER CORPORATION

Inventor： Aya OSHIMA

IPC: A61F13/493 ,  A61F13/56 ,  A61F13/84

CPC classification number: A61F13/493 ,  A61F13/5638 ,  A61F13/84 ,  A61F2013/8497

Abstract: A disposable diaper includes a diaper body having a top sheet, a back sheet, and an absorber disposed therebetween, the disposable diaper extending from a backside portion to an abdominal side portion; a side flap provided in each of side portions of the backside portion, the side flap extending outward beyond the absorber in a width direction; and a fastening tape that is provided in the side flap to be fastened to the abdominal side portion when the diaper body is used. The fastening tape includes a fixed portion fixed to the side flap, and a protruding piece extending outward from the fixed portion in the width direction. The fixed portion includes a notch in a lower region that is closer to a leg side of a wearer than the protruding piece. The notch is recessed from an outer edge in the width direction toward an inner side.

公开(公告)号：US20190060140A1

公开(公告)日：2019-02-28

申请号：US16080065

申请日：2017-02-24

Applicant: DAIO PAPER CORPORATION

Inventor： Aya OSHIMA ,  Aya TAKAHASHI

IPC: A61F13/53 ,  A61F13/15 ,  A61F13/494 ,  A61F13/49

Abstract: Technical problemA disposable diaper having excellent performances in both the absorbable capacity and the absorption rate, is provided.Solution to problemThe above problem is solved by a pad type disposable diaper 200, in which a top sheet 22 is formed of a thermoplastic nonwoven fabric, and absorbent bodies 23A and 23B are formed of a lower layer absorbent body 23B and an upper layer absorbent body 23A provided on a front surface of the lower layer absorbent body 23B, wherein a slit 40 having a predetermined width is provided in the upper layer absorbent body 23A at least at a crotch portion C2 so as to extend in a front-back direction, and the slit 40 having the predetermined width is not provided in the lower layer absorbent body 23B, the top sheet 22 includes a depressed portion 30 that is depressed into the slit 40, and multiple low permeation portions 80 are provided with intervals at least in the depressed portion 30, the low permeation portions 80 being portions in which fibers are welded to each other in a state of being compressed in a thickness direction.

公开(公告)号：US20190046367A1

公开(公告)日：2019-02-14

申请号：US16076830

申请日：2017-02-09

Applicant: DAIO PAPER CORPORATION

Inventor： Aya OSHIMA ,  Aya TAKAHASHI

IPC: A61F13/533 ,  A61F13/511

Abstract: An absorbent of a disposable diaper is formed of a lower layer absorbent and an upper layer absorbent, wherein a pair of left and right slits is extended in a front-rear direction region including a crotch portion, wherein the left slit and the right slit are spaced apart in a width direction, wherein a top sheet includes a depressed portion that falls into the slits, and wherein, in at least a region located between the slits in the top sheet, a large number of convex portions is arranged in a zigzag manner while being spaced apart by an interval, and the interval between the adjacent convex portions in the width direction is shorter than each of sizes in the width direction of the convex portions located at the front side and at a rear side of a part of the interval.

公开(公告)号：US20180344540A1

公开(公告)日：2018-12-06

申请号：US15757759

申请日：2016-09-05

Applicant: DAIO PAPER CORPORATION

Inventor： Aya OSHIMA

IPC: A61F13/533

CPC classification number: A61F13/532 ,  A61F13/533

Abstract: In an absorbent article (200), a pair of slits (40) each extending in a front and rear direction with a predetermined width is formed in an absorbent body (23) at a front and rear direction region at least at a crotch portion (C2) such that to section a first portion (11) at middle, and a second portion (12) and a third portion (12) at both sides of the first portion in a width direction, respectively, projection portions (23P) projected toward both sides in the width direction at middle in the front and rear direction of the first portion (11) are included in the absorbent body, and cavity portions (23D) in which the projection portions (23P) fit outwardly in the width direction are formed at a front and rear direction position corresponding to the projection portions (23P) in the second portion (12) and the third portion (12), respectively.