Invention Grant
- Patent Title: Production method and production device of film having fine irregular pattern on surface
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Application No.: US14539431Application Date: 2014-11-12
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Publication No.: US09840039B2Publication Date: 2017-12-12
- Inventor: Kiyoshi Minoura , Yuma Hirai , Fumiyasu Nomura
- Applicant: TORAY INDUSTRIES, INC.
- Applicant Address: JP Tokyo
- Assignee: Toray Industries, Inc.
- Current Assignee: Toray Industries, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Ratner Prestia
- Priority: JP2008-066058 20080314
- Main IPC: B29C31/08
- IPC: B29C31/08 ; B29C43/34 ; B29C59/04 ; B29C31/00 ; B29C43/02 ; B29C59/02 ; B29C43/36 ; B29K105/00 ; B29L11/00

Abstract:
A method for producing a film having a fine irregular pattern intermittently includes feeding a film to be processed intermittently from upstream side to the vicinity of the surface of a die having a fine irregular pattern, transferring the pattern to the surface of the film by pressing the film against the surface of a die, stripping the processed film on which a pattern is formed from the surface of a die, and then feeding a new film to be processed to the die, wherein the processed film is stripped from the surface of a die by gripping and moving the processed film to the upstream side, and then the processed film is fed by a length of intermittent feed to the surface of a die while preventing the processed film from creasing.
Public/Granted literature
- US20150072039A1 PRODUCTION METHOD AND PRODUCTION DEVICE OF FILM HAVING FINE IRREGULAR PATTERN ON SURFACE Public/Granted day:2015-03-12
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