Title:
SOLUTION FILM-FORMING METHOD
Document Type and Number:
WIPO Patent Application WO/2018/061804
Kind Code:
A1
Abstract:
Provided is a solution film-forming method for producing optical films, the smoothness of which has been further improved. A solution film-forming apparatus produces films from dope. A cast film is formed by continuously casting dope in which a polymer is dissolved in a solvent on a moving belt, and said flow cast film is dried. A film is formed by peeling the cast film from a casting support. A mesh is provided so as to face the casting surface of the belt on which the dope is cast. The mesh is provided so as to be separated from the casting surface. The diameter of the mesh through holes is 7 mm at most.
More Like This:
Inventors:
IKEDA HITOSHI (JP)
YOSHIDA SHUNICHI (JP)
YOSHIDA SHUNICHI (JP)
Application Number:
PCT/JP2017/033322
Publication Date:
April 05, 2018
Filing Date:
September 14, 2017
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
B29C41/34; B29C41/24; B29L7/00
Foreign References:
| JP2008532793A | 2008-08-21 | |||
| JP2005047141A | 2005-02-24 | |||
| JP2006297922A | 2006-11-02 | |||
| JP2016165811A | 2016-09-15 | |||
| JP2012030481A | 2012-02-16 |
Attorney, Agent or Firm:
KYORITSU INSTITUTE (JP)
Download PDF: