Title:
PRODUCTION METHOD FOR OPTICAL LAMINATE FILM ROLL, OPTICAL LAMINATE FILM ROLL
Document Type and Number:
WIPO Patent Application WO/2020/110819
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a production method for making an optical laminate film roll that achieves excellent optical laminate film feed. This production method for an optical laminate film roll has: a first application step for applying a binder composition that contains a binder and a photoalignment polymer onto a knurled oblong support body and forming a first coating film; a binder layer formation step for forming a binder layer after the first application step; a second application step for applying a polymerizable liquid crystal composition that contains a polymerizable liquid crystal compound directly onto the binder layer and forming a second coating film that is narrower than the binder layer; an optically anisotropic layer formation step for forming an optically anisotropic layer that is narrower than the binder layer after the second application step and making an optical laminate film; and a winding step for winding the optical laminate film into a roll after the optically anisotropic layer formation step and making an optical laminate film roll.
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Inventors:
ATSUMI KUNIHIRO (JP)
NISHIKAWA HIDEYUKI (JP)
NISHIKAWA HIDEYUKI (JP)
Application Number:
PCT/JP2019/045173
Publication Date:
June 04, 2020
Filing Date:
November 19, 2019
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
G02B5/30; B32B7/023; B32B27/30; G02F1/13; G02F1/13363; G02F1/1337
Domestic Patent References:
| WO2018216812A1 | 2018-11-29 |
Foreign References:
| JP2014215360A | 2014-11-17 | |||
| JP2015200725A | 2015-11-12 | |||
| JP2010139823A | 2010-06-24 | |||
| JP2018124528A | 2018-08-09 |
Attorney, Agent or Firm:
ITOH Hideaki et al. (JP)
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