Title:
BAG-MANUFACTURING METHOD AND BAG-MANUFACTURING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/235188
Kind Code:
A1
Abstract:
The present invention improves the efficiency of manufacturing bags that have end-surface parts. A body material is guided, divided along a fragile line, and folded at the divided edge. Due to guiding and temporary sealing of the body material, a side gusset material is cut open along the fragile line, and an open surface is formed. An end surface material is then supplied to the body material, and is overlapped on the folded portion of the body material and the open surface of the side gusset material.
Inventors:
OHNISHI YUJI (JP)
NAGASAWA TOSHIKI (JP)
NAGASAWA TOSHIKI (JP)
Application Number:
PCT/JP2020/010795
Publication Date:
November 26, 2020
Filing Date:
March 12, 2020
Export Citation:
Assignee:
TOTANI CORP (JP)
International Classes:
B31B70/18; B31B70/64
Domestic Patent References:
| WO2009131214A1 | 2009-10-29 | |||
| WO2018012542A1 | 2018-01-18 |
Foreign References:
| JP2015189089A | 2015-11-02 | |||
| JPH0365527A | 1991-03-20 | |||
| JP3655627B2 | 2005-06-02 | |||
| JP6381169B2 | 2018-09-05 |
Other References:
See also references of EP 3974168A4
Attorney, Agent or Firm:
MINORI PATENT PROFESSION CORPORATION (JP)
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