公开(公告)号：US20240189159A1

公开(公告)日：2024-06-13

申请号：US18585408

申请日：2024-02-23

Applicant: UNICHARM CORPORATION

Inventor： Toshifumi Ohtsubo ,  Hirotomo Mukai ,  Takahito Nagai ,  Chieri Akino ,  Satoshi Mizuno

IPC: A61F13/49 ,  A61F13/15

CPC classification number: A61F13/49009 ,  A61F13/15747

Abstract: A stretchable sheet includes a first sheet, a second sheet joined to the first sheet by welded portions, and an elastic member that is disposed between the first sheet and the second sheet and stretches and contracts in a continuous direction in which the elastic member extends. The welded portions are disposed on both sides of the elastic member in an intersecting direction intersecting with the continuous direction. Welded portion pairs are disposed in which the elastic member is sandwiched and restrict a position of the elastic member in the intersecting direction with respect to the first sheet and the second sheet. The elastic member has a damaged portion where a part of a surface of the elastic member is damaged. The welded portion pairs include a first welded portion pair and a second welded portion pair.

公开(公告)号：US12186171B2

公开(公告)日：2025-01-07

申请号：US18585408

申请日：2024-02-23

Applicant: UNICHARM CORPORATION

Inventor： Toshifumi Ohtsubo ,  Hirotomo Mukai ,  Takahito Nagai ,  Chieri Akino ,  Satoshi Mizuno

IPC: A61F13/15 ,  A61F13/49

Abstract: A stretchable sheet includes a first sheet, a second sheet joined to the first sheet by welded portions, and an elastic member that is disposed between the first sheet and the second sheet and stretches and contracts in a continuous direction in which the elastic member extends. The welded portions are disposed on both sides of the elastic member in an intersecting direction intersecting with the continuous direction. Welded portion pairs are disposed in which the elastic member is sandwiched and restrict a position of the elastic member in the intersecting direction with respect to the first sheet and the second sheet. The elastic member has a damaged portion where a part of a surface of the elastic member is damaged. The welded portion pairs include a first welded portion pair and a second welded portion pair.