JPS6420236A - Production of polyester film - Google Patents

Production of polyester film

Info

Publication number
JPS6420236A
JPS6420236A JP17554187A JP17554187A JPS6420236A JP S6420236 A JPS6420236 A JP S6420236A JP 17554187 A JP17554187 A JP 17554187A JP 17554187 A JP17554187 A JP 17554187A JP S6420236 A JPS6420236 A JP S6420236A
Authority
JP
Japan
Prior art keywords
film
value
corona discharge
treatment
discharge treatment
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
JP17554187A
Other languages
Japanese (ja)
Other versions
JP2570304B2 (en
Inventor
Kenji Tsunashima
Seizo Aoki
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.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
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 Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP62175541A priority Critical patent/JP2570304B2/en
Publication of JPS6420236A publication Critical patent/JPS6420236A/en
Application granted granted Critical
Publication of JP2570304B2 publication Critical patent/JP2570304B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

PURPOSE:To obtain a film having no surface defect and excellent running performance, by stretching a polyester film containing a small amount of a polyalkylene glycol with rolls after subjecting this film to corona discharge treatment of a specified E value. CONSTITUTION:An unstretched polyester film containing 0.01-1.8wt.% polyalkylene glycol (e.g., polyethylene glycol) (e.g., polyethylene phthalate film) is subjected to corona discharge treatment of an E value of 10-60 and then stretched with rolls. Because a nonsticky hard thin film is formed on the film surface by the corona discharge treatment, the film loses its stickiness to a high-temperature roll during stretching, and problems such as the formation of defects on the film surface and adhesion of sticky matter to it can be eliminated. Said E value can be obtained from W/(D.V) (wherein W is the intensity of treatment, D is the width of treatment, m, and V is the speed of film, m/min).
JP62175541A 1987-07-13 1987-07-13 Method for producing polyester film Expired - Lifetime JP2570304B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62175541A JP2570304B2 (en) 1987-07-13 1987-07-13 Method for producing polyester film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62175541A JP2570304B2 (en) 1987-07-13 1987-07-13 Method for producing polyester film

Publications (2)

Publication Number Publication Date
JPS6420236A true JPS6420236A (en) 1989-01-24
JP2570304B2 JP2570304B2 (en) 1997-01-08

Family

ID=15997880

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62175541A Expired - Lifetime JP2570304B2 (en) 1987-07-13 1987-07-13 Method for producing polyester film

Country Status (1)

Country Link
JP (1) JP2570304B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0943416A2 (en) * 1998-03-10 1999-09-22 Mitsubishi Polyester Film LLC Process for producing oriented polymeric film with improved surface quality
JP2013028799A (en) * 2011-06-21 2013-02-07 Fujifilm Corp Method for improving adhesion between polyester film and aqueous dispersion and method for manufacturing polyester film
JP2019044157A (en) * 2017-08-30 2019-03-22 東レ株式会社 Thermoplastic resin film
JP2019108527A (en) * 2017-12-18 2019-07-04 東レ株式会社 Polyester film

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5418872A (en) * 1977-07-13 1979-02-13 Toray Ind Inc Polyester film
JPS5935920A (en) * 1982-08-23 1984-02-27 Diafoil Co Ltd Biaxially oriented polyester film and preparation thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5418872A (en) * 1977-07-13 1979-02-13 Toray Ind Inc Polyester film
JPS5935920A (en) * 1982-08-23 1984-02-27 Diafoil Co Ltd Biaxially oriented polyester film and preparation thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0943416A2 (en) * 1998-03-10 1999-09-22 Mitsubishi Polyester Film LLC Process for producing oriented polymeric film with improved surface quality
EP0943416A3 (en) * 1998-03-10 2000-01-12 Mitsubishi Polyester Film LLC Process for producing oriented polymeric film with improved surface quality
JP2013028799A (en) * 2011-06-21 2013-02-07 Fujifilm Corp Method for improving adhesion between polyester film and aqueous dispersion and method for manufacturing polyester film
JP2019044157A (en) * 2017-08-30 2019-03-22 東レ株式会社 Thermoplastic resin film
JP2019108527A (en) * 2017-12-18 2019-07-04 東レ株式会社 Polyester film

Also Published As

Publication number Publication date
JP2570304B2 (en) 1997-01-08

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