Invention Grant
- Patent Title: Disposable wearing article and method of bonding perforated nonwoven fabric
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Application No.: US16333702Application Date: 2017-05-11
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Publication No.: US11617690B2Publication Date: 2023-04-04
- Inventor: Yuichi Yamashita
- Applicant: Daio Paper Corporation
- Applicant Address: JP Ehime
- Assignee: Daio Paper Corporation
- Current Assignee: Daio Paper Corporation
- Current Assignee Address: JP Ehime
- Agency: Andrus Intellectual Property Law
- Priority: JPJP2016-193525 20160930
- International Application: PCT/JP2017/017813 WO 20170511
- International Announcement: WO2018/061289 WO 20180405
- Main IPC: A61F13/15
- IPC: A61F13/15 ; A61F13/512 ; A61F13/49 ; A61F13/539 ; A61F13/511 ; A61F13/496 ; A61F13/551 ; A61F13/56 ; A61F13/51 ; A61F13/53 ; A61F13/514

Abstract:
To certainly fix the peripheral portion of a hole to a support sheet without losing flexibility. The above problem is solved by providing a cover nonwoven fabric in which a plurality of holes penetrating front and back surfaces at intervals, and a liquid impervious sheet in which the cover nonwoven fabric is bonded via a hot melt adhesive, in the cover nonwoven fabric, the peripheral portions of the holes are warped portion warped toward the liquid impervious sheet side, at least a tip portion of the warped portion of the cover nonwoven fabric has an adhesive portion bonded to the liquid impervious sheet via the hot melt adhesive, and a portion of the cover nonwoven fabric other than the adhesive portion is not adhered to the liquid impervious sheet.
Public/Granted literature
- US20190269563A1 Disposable Wearing Article and Method of Bonding Perforated Nonwoven Fabric Public/Granted day:2019-09-05
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