Title:
PROCESS FOR PRODUCING LAMINATED OPTICAL FILM
Document Type and Number:
WIPO Patent Application WO/2017/069106
Kind Code:
A1
Abstract:
Provided is a process for producing a laminated optical film with which it is possible to effectively prevent an adhesive agent from leaking from the edges of a film. A process for producing a laminated optical film having at least two sheets of laminated film that includes a first surface film and a second surface film, wherein the process for producing a laminated optical film includes: an attaching step for passing a film laminate between a pair of rollers and applying pressure to the film laminate, the film laminate having the first surface film that constitutes part of one surface, the second surface film that constitutes part of another surface, and an adhesive agent layer provided between the first surface film and the second surface film; and a suction step for suctioning excess adhesive agent that moves in the direction of both widthwise ends of the film laminate due to the pressure.
Inventors:
FURUYA TSUTOMU (JP)
HAYAKAWA NOBORU (JP)
SHIRAKAWA KEIICHI (JP)
HAYAKAWA NOBORU (JP)
SHIRAKAWA KEIICHI (JP)
Application Number:
PCT/JP2016/080793
Publication Date:
April 27, 2017
Filing Date:
October 18, 2016
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO (JP)
International Classes:
B32B37/20; B32B37/12; G02B5/30
Domestic Patent References:
| WO2013114583A1 | 2013-08-08 |
Foreign References:
| JP2006088651A | 2006-04-06 | |||
| JPH11179871A | 1999-07-06 | |||
| JP2005128490A | 2005-05-19 | |||
| JPH1110797A | 1999-01-19 | |||
| JP2002365432A | 2002-12-18 |
Attorney, Agent or Firm:
NAKAYAMA, Tohru et al. (JP)
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