Title:
SYSTEM FOR PRODUCING FILM ROLL AND METHOD FOR PRODUCING FILM ROLL
Document Type and Number:
WIPO Patent Application WO/2021/145201
Kind Code:
A1
Abstract:
This system 1 for producing a film roll R is provided with a knurling machine 6 and a winding machine 7. The knurling machine 6 forms knurls K1, K2 on the ends of a film F in the width direction TD. The winding machine 7 winds the film F having the knurls K1, K2 formed therein and produces a film roll R. The knurls K1, K2 have a wavy shape that extends in a flow direction MD while undulating in the width direction TD. The winding machine 7 winds the film F so that the positions of the knurls K1, K2 match in the width direction TD with respect to the film roll R.
Inventors:
HADA NORIAKI (JP)
SHINAGAWA MASASHI (JP)
ITONAGA KAREN (JP)
SHINAGAWA MASASHI (JP)
ITONAGA KAREN (JP)
Application Number:
PCT/JP2020/048877
Publication Date:
July 22, 2021
Filing Date:
December 25, 2020
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
B26D3/00; B23K26/00; B26D3/10; B26D7/32; B29C59/16; B65H18/08; B65H23/038
Domestic Patent References:
| WO2015166971A1 | 2015-11-05 |
Foreign References:
| JP2012192546A | 2012-10-11 |
Attorney, Agent or Firm:
OKAMOTO, Hiroyuki et al. (JP)
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