Title:
METHOD FOR MANUFACTURING OPTICAL FILM
Document Type and Number:
WIPO Patent Application WO/2019/188594
Kind Code:
A1
Abstract:
This method for manufacturing an optical film comprises: a step for forming a coating film on a surface having a knurling portion of a continuous film support; a step for winding a surface reverse to the surface having the knurling portion of the continuous film support on which the coating film is formed around a temperature regulating roll while bringing the reverse surface into contact therewith, and irradiating the coating film on the temperature regulating roll with an active energy ray; and a step for bringing the surface having the knurling portion of the continuous film support into contact with a roll member, wherein the conveyance speed U of the continuous film support, the viscosity μ of air at the surface temperature of the temperature regulating roll, the radius R of the temperature regulating roll, the height hk of the knurling portion, tension T applied to a continuous film, and a distance L from a point of separation from the temperature regulating roll to a point of contact with the roll member of the continuous film support satisfy relational expression (1).
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Inventors:
YAMAMOTO TAKASHI (JP)
NAGANO SATOSHI (JP)
NAGANO SATOSHI (JP)
Application Number:
PCT/JP2019/011491
Publication Date:
October 03, 2019
Filing Date:
March 19, 2019
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
G02B5/30; C08J7/046
Foreign References:
| JP2015068949A | 2015-04-13 | |||
| JP2013186456A | 2013-09-19 | |||
| JP2011125821A | 2011-06-30 | |||
| JP2012218196A | 2012-11-12 | |||
| JP2017111394A | 2017-06-22 | |||
| JP2004154636A | 2004-06-03 |
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
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