公开(公告)号：US11793681B2

公开(公告)日：2023-10-24

申请号：US16768134

申请日：2018-11-22

Applicant: ZUIKO CORPORATION

Inventor： Kouji Utani ,  Daisuke Furukawa

IPC: A61F13/15 ,  D04H1/44

CPC classification number: A61F13/15642 ,  A61F13/15764 ,  D04H1/44 ,  A61F13/15658 ,  D10B2509/026

Abstract: An apparatus for manufacturing an absorbent core includes: a dispenser for dispensing a fiber; a fiber-stacking drum for stacking the dispensed fiber on the outer circumferential surface while sucking the fiber toward an inside; and a fixed frame for rotatably supporting the fiber-stacking drum. The fiber-stacking drum includes: a rotation shaft; a wheel attached to the distal end of the rotation shaft; and a fiber-stacking ring provided on an outer circumference portion of the wheel for stacking the fiber A suction chamber is fixed to the fixed frame The suction chamber is arranged on an inner side of the fiber-stacking ring and produces a suction force toward an inner circumference of the fiber-stacking ring. The fiber-stacking drum is supported by the fixed frame so as to be slidable in an axial direction of the rotation shaft; and the wheel is removably attached to the distal end of the rotation shaft via a fastener.

公开(公告)号：US11035061B2

公开(公告)日：2021-06-15

申请号：US16486251

申请日：2018-02-26

Applicant: ZUIKO CORPORATION

Inventor： Daisuke Furukawa

IPC: B32B3/00 ,  D04H1/54

Abstract: A shaped sheet including a plurality of rows of protruding portions formed on a non-woven fabric sheet and extending in a first direction and a plurality of rows of protruding portions formed on the non-woven fabric sheet and extending in a second direction that crosses the first direction, wherein: the shaped sheet is more stretchable in the first direction than in the second direction; the shaped sheet is formed from a single layer of the non-woven fabric sheet; and a fusion-bonded portion that extends discontinuously or continuously in the first direction and that has a smaller thickness than the protruding portions due to its fusion-bonded structure is provided along a part or whole of a periphery of the protruding portions on the shaped sheet.

公开(公告)号：US12097100B2

公开(公告)日：2024-09-24

申请号：US17619390

申请日：2020-07-02

Applicant: ZUIKO CORPORATION

Inventor： Takahiro Shimada ,  Daisuke Furukawa

IPC: A61F13/15 ,  B05B13/02

CPC classification number: A61F13/15764 ,  A61F13/15658 ,  B05B13/0207

Abstract: An absorbent body in which a larger amount of a granular absorbent substance penetrates into the inside of a fiber sheet is produced. A fiber sheet having napped one main surface is supplied to a conveying device and conveyed while the other main surface of the fiber sheet is being sucked through a conveyance surface. A granular absorbent substance is sprayed onto the napped one main surface of the fiber sheet to cause the substance to penetrate into the inside of the fiber sheet in a suction section. A pressure difference increasing device is provided that faces the one main surface of the fiber sheet sprayed with the absorbent substance and being conveyed in the suction section, and that suppresses air from flowing through the fiber sheet inward from the conveyance surface to increase the pressure difference between the conveyance surface side and the opposite side of the fiber sheet.

公开(公告)号：US11672707B2

公开(公告)日：2023-06-13

申请号：US17789233

申请日：2020-12-11

Applicant: ZUIKO CORPORATION

Inventor： Takahiro Shimada ,  Daisuke Furukawa

IPC: A61F13/15

CPC classification number: A61F13/15699 ,  A61F13/15593 ,  A61F13/15739 ,  A61F13/15764 ,  A61F13/15804

Abstract: The method of the present invention includes the steps of: arranging a plurality of non-continuous sheets of a predetermined length intermittently and successively in the conveyance direction on the continuous sheet so that the continuous elastic members are sandwiched between the non-continuous sheets and the continuous sheet; in an overlapping area where the non-continuous sheets overlap with the continuous sheet, attaching the continuous sheet and the non-continuous sheets to each other by welding the sheets to each other in a predetermined pattern, thus producing a continuous laminate; and in a non-overlapping area where the non-continuous sheets do not overlap with the continuous sheet, heating the continuous sheet in the same pattern as said pattern.