Title:
OPTICAL FILM MANUFACTURING METHOD, POLARIZING PLATE, AND IMAGE DISPLAY DEVICE.
Document Type and Number:
WIPO Patent Application WO/2012/091145
Kind Code:
A1
Abstract:
Provided is an optical film manufacturing method which includes: a coating process wherein a coating layer (12) is formed by coating a coating liquid containing an active energy ray-curable resin on a substrate film (11) which is being continuously conveyed; a first curing process wherein active energy rays are irradiated, from the coating layer (12) side, on a fore-region (A) of the coating layer (12); and a second curing process wherein, with the surface of a mold pushed against the surface of the coating layer (12), active energy rays are irradiated on the coating layer (12), from the substrate film (11) side. In the first curing process, it is preferable to also irradiate active energy rays onto a rear region (B) of the coating layer (12). Thus, the present invention provides a method which enables the continual efficient manufacture of an optical film, whilst being able to prevent the generation of resin remains on the mold, and without generating flaws such as defects.
Inventors:
KANZAKI SHO (JP)
Application Number:
PCT/JP2011/080553
Publication Date:
July 05, 2012
Filing Date:
December 22, 2011
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO (JP)
KANZAKI SHO (JP)
KANZAKI SHO (JP)
International Classes:
B29C39/22; G02B1/10; B29C39/18; B29C59/04; B32B7/02; B32B27/18; G02B1/111; G02B1/14; G02B5/02; G02B5/30; G02F1/1335; B29L7/00; B29L11/00
Domestic Patent References:
| WO2010071055A1 | 2010-06-24 |
Foreign References:
| JP2009251379A | 2009-10-29 | |||
| JP2009262513A | 2009-11-12 | |||
| JP2008282013A | 2008-11-20 |
Attorney, Agent or Firm:
NAKAYAMA, Tohru et al. (JP)
Nakayama δΊ¨ (JP)
Nakayama δΊ¨ (JP)
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Claims: