JPS645825A - Method for heat-treating polyester film - Google Patents

Method for heat-treating polyester film

Info

Publication number
JPS645825A
JPS645825A JP16095687A JP16095687A JPS645825A JP S645825 A JPS645825 A JP S645825A JP 16095687 A JP16095687 A JP 16095687A JP 16095687 A JP16095687 A JP 16095687A JP S645825 A JPS645825 A JP S645825A
Authority
JP
Japan
Prior art keywords
film
taken
biaxially oriented
polyester film
oriented polyester
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP16095687A
Other languages
Japanese (ja)
Other versions
JPH059266B2 (en
Inventor
Masahiro Hosoi
Hisashi Hamano
Hideo Kato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Teijin Ltd
Original Assignee
Teijin Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Teijin Ltd filed Critical Teijin Ltd
Priority to JP16095687A priority Critical patent/JPS645825A/en
Publication of JPS645825A publication Critical patent/JPS645825A/en
Publication of JPH059266B2 publication Critical patent/JPH059266B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

PURPOSE:To improve the dimensional stability at comparatively low temperature by a method wherein biaxially oriented polyester film is taken up in a roll under the state that specified ratio of air layer is interposed between film layers and, after that, the resultant taken-up film is subjected to retention treatment at specified ambient temperature for not less than specified period of time. CONSTITUTION:The polyester concerned is made of acid component mainly consisting of aromatic dicarboxylic acid and glycol component mainly consisting of aliphatic glycol and is linear and has film-forming property. As the aromatic dicarboxylic acid, terephthalic acid is used. As the aliphatic glycol, ethylene glycol or the like is used. A biaxially oriented polyester film is obtained by stretching and thermosetting the polyester. The preferable film thickness is 30-80mum. The biaxially oriented polyester film is taken up in a roll under the state that 3-7% of air layer is interposed between film layers. The film taken up in the roll is subjected to retention treatment at an ambient temperature of 40-90 deg.C for 24hr or longer.
JP16095687A 1987-06-30 1987-06-30 Method for heat-treating polyester film Granted JPS645825A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16095687A JPS645825A (en) 1987-06-30 1987-06-30 Method for heat-treating polyester film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16095687A JPS645825A (en) 1987-06-30 1987-06-30 Method for heat-treating polyester film

Publications (2)

Publication Number Publication Date
JPS645825A true JPS645825A (en) 1989-01-10
JPH059266B2 JPH059266B2 (en) 1993-02-04

Family

ID=15725824

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16095687A Granted JPS645825A (en) 1987-06-30 1987-06-30 Method for heat-treating polyester film

Country Status (1)

Country Link
JP (1) JPS645825A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0655825A (en) * 1992-07-20 1994-03-01 Printing Bureau Ministry Of Finance Japan Wet paper printed matter, its manufacture and wet paper printing device
US5629141A (en) * 1994-11-22 1997-05-13 Fuji Photo Film Co., Ltd. Process for heat treatment of a photographic support
JP2003071889A (en) * 2001-09-05 2003-03-12 Sodick Co Ltd Ejector device for injection molding machine
JP2007248510A (en) * 2006-03-13 2007-09-27 Fujifilm Corp Light diffusing member

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5051174A (en) * 1973-08-29 1975-05-07
JPS54148068A (en) * 1978-05-12 1979-11-19 Teijin Ltd Method of modification of polyester vessel
JPS5898219A (en) * 1981-12-07 1983-06-11 Teijin Ltd Heattreatment of film

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5051174A (en) * 1973-08-29 1975-05-07
JPS54148068A (en) * 1978-05-12 1979-11-19 Teijin Ltd Method of modification of polyester vessel
JPS5898219A (en) * 1981-12-07 1983-06-11 Teijin Ltd Heattreatment of film

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0655825A (en) * 1992-07-20 1994-03-01 Printing Bureau Ministry Of Finance Japan Wet paper printed matter, its manufacture and wet paper printing device
US5629141A (en) * 1994-11-22 1997-05-13 Fuji Photo Film Co., Ltd. Process for heat treatment of a photographic support
JP2003071889A (en) * 2001-09-05 2003-03-12 Sodick Co Ltd Ejector device for injection molding machine
JP2007248510A (en) * 2006-03-13 2007-09-27 Fujifilm Corp Light diffusing member

Also Published As

Publication number Publication date
JPH059266B2 (en) 1993-02-04

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees