Title:
MANUFACTURE FOR RESIN FILM
Document Type and Number:
Japanese Patent JPH0671676
Kind Code:
A
Abstract:
PURPOSE: To constitute a method so that a resin film can be manufactured stably even at an early stage of manufacturing resin film wherein a water film is arranged on a casting drum.
CONSTITUTION: Manufacture of a resin film includes 71 process manufacturing a series of a resin film F by supplying sheetlike molten resin 5a continuously to a casting drum 4, a process performing orientation treatment by leading the resin film F to a film orientation part 2 and a process arranging a water film to the casting drum 4 by a water film forming device 7 to interpose the water film between the casting drum 4 and resin film F. The process arranging the water film is started upon arrival of the resin film F to an orientation treatment part.
Inventors:
IKEGAMI TETSUO
OKASHIRO HIDETOSHI
HARA MASANOBU
ANZAI TOUCHI
OKASHIRO HIDETOSHI
HARA MASANOBU
ANZAI TOUCHI
Application Number:
JP22828892A
Publication Date:
March 15, 1994
Filing Date:
August 27, 1992
Export Citation:
Assignee:
TORAY INDUSTRIES
International Classes:
B29C41/26; B29C41/34; B29C41/46; B29L7/00; (IPC1-7): B29C41/26; B29C41/34; B29C41/46
Attorney, Agent or Firm:
Yukio Ono (2 outside)
Next Patent: COOLING AND SETTING DEVICE FOR THERMOSETTING RESIN