Title:
溶液製膜方法及び溶液製膜設備
Document Type and Number:
Japanese Patent JP5001045
Kind Code:
B2
Abstract:
A casting dope is cast onto a casting belt to form a casting film, and then the casting film is peeled as a wet film from the casting belt. The wet film is guided through a transfer area toward a tenter drying device. In the tenter drying device, a tenter performs sequentially the drying, the stretching and the relaxation of the wet film during transporting the wet film. On the wet film, a bowing phenomena occurs by the relaxation to generate a first disorientation of an optical axis, and therefore the orientation of slow axed becomes not uniform. The stretching provide a second disorientation of the optical axis so as to cancel the first disorientation. Thus in the obtained film, the nonuniformity of the orientation of the slow axes is reduced.
Inventors:
Washiya Public Figure
Tomoaki Nagahara
Tomoaki Nagahara
Application Number:
JP2007084429A
Publication Date:
August 15, 2012
Filing Date:
March 28, 2007
Export Citation:
Assignee:
FUJIFILM Corporation
International Classes:
G02B5/30; B29C41/24; B29C41/46; B29C55/02; B29K1/00; B29L7/00; B29L11/00
Domestic Patent References:
| JP2006027263A | ||||
| JP2005181747A | ||||
| JP2001353775A | ||||
| JP2005054100A |
Attorney, Agent or Firm:
Kazunori Kobayashi
Shigeru Iijima
Kobayashi Hideyoshi
Shigeru Iijima
Kobayashi Hideyoshi