Title:
SHAPED SHEET MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2020/085460
Kind Code:
A1
Abstract:
Provided is a shaped sheet manufacturing method with which it is possible to reliably shape a first sheet even if the tension of the first sheet is reduced at the time of manufacturing a shaped sheet in which the first sheet and a second sheet are bonded to each other and with which it is possible to shape both the first sheet and the second sheet without making the device configuration complex. In a first step, a first sheet (2) is conveyed along an outer peripheral surface (12s) of a first roll (12) having a plurality of recessed parts. In a second step, a second sheet (4) is overlapped with the first sheet (2) and conveyed together with the first sheet (2) so that the first and second sheets (2, 4) are held between the recessed parts of the first roll (12) and projection parts (14a) of a second roll (14). In a third step, the first and second sheets (2, 4) having passed between the first roll (12) and the second roll (14) are bonded to each other. In the second step, the tension (T1) of the first sheet (2) is made smaller than the tension (T2) of the second sheet (4).
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Inventors:
YAMATO SHIGEAKI (JP)
Application Number:
PCT/JP2019/041790
Publication Date:
April 30, 2020
Filing Date:
October 24, 2019
Export Citation:
Assignee:
ZUIKO CORP (JP)
International Classes:
A61F13/15; B29C59/04; B29L7/00; B29L9/00
Domestic Patent References:
| WO2016199543A1 | 2016-12-15 | |||
| WO2014084066A1 | 2014-06-05 | |||
| WO2016199543A1 | 2016-12-15 |
Foreign References:
| JPH06255006A | 1994-09-13 | |||
| JP2016087423A | 2016-05-23 | |||
| JP2009126107A | 2009-06-11 | |||
| JP4090420B2 | 2008-05-28 |
Other References:
See also references of EP 3871870A4
Attorney, Agent or Firm:
YAMAMOTO Toshinori (JP)
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