Title:
FILM ROLL AND METHOD FOR MANUFACTURING FILM ROLL
Document Type and Number:
WIPO Patent Application WO/2023/248896
Kind Code:
A1
Abstract:
A film roll comprising a long film wound into a roll, the long film having a film body and a knurling portion that is disposed at the end of the film body in the width direction. The knurling portion has a plurality of protrusion units arranged along the length direction of the film body and composed of a plurality of protrusions. In the plan view of the long film, the plurality of protrusions constituting the protrusion units are arranged in sequence from the inside to the outside in the width direction of the film body from the downstream side to the upstream side in the feeding direction of the long film. The inclination angle α of the straight line connecting the innermost protrusion and the outermost protrusion with respect to the width direction of the film body is greater than 0° and less than or equal to 0.5°.
Inventors:
KAZAMA KENICHI
KANEKO YUKI
NANJO TAKASHI
KANEKO YUKI
NANJO TAKASHI
Application Number:
PCT/JP2023/022092
Publication Date:
December 28, 2023
Filing Date:
June 14, 2023
Export Citation:
Assignee:
KONICA MINOLTA INC (JP)
International Classes:
G02B5/30; B29C59/16; B65H18/28
Domestic Patent References:
| WO2011098376A1 | 2011-08-18 |
Foreign References:
| JP2014019077A | 2014-02-03 | |||
| JPS6374850A | 1988-04-05 | |||
| JP2017056648A | 2017-03-23 | |||
| JP2013136773A | 2013-07-11 | |||
| JP2008001893A | 2008-01-10 |
Attorney, Agent or Firm:
WASHIDA & ASSOCIATES (JP)
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