JPS5537318A - Production of polyester film and its products having high surface characteristic - Google Patents

Production of polyester film and its products having high surface characteristic

Info

Publication number
JPS5537318A
JPS5537318A JP10980678A JP10980678A JPS5537318A JP S5537318 A JPS5537318 A JP S5537318A JP 10980678 A JP10980678 A JP 10980678A JP 10980678 A JP10980678 A JP 10980678A JP S5537318 A JPS5537318 A JP S5537318A
Authority
JP
Japan
Prior art keywords
products
high surface
polyester film
slacks
production
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
JP10980678A
Other languages
Japanese (ja)
Other versions
JPS6045056B2 (en
Inventor
Satoshi Nagura
Yorifumi Kanou
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 JP53109806A priority Critical patent/JPS6045056B2/en
Publication of JPS5537318A publication Critical patent/JPS5537318A/en
Publication of JPS6045056B2 publication Critical patent/JPS6045056B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

PURPOSE: To eliminate slacks appeared at the edges due to moisture absorbing, by heating up the surface of a thick polyester film within a specific temperature range.
CONSTITUTION: When polyester films or their products with a thickness of 50μ or more are rolled or piled up for a long time and then they are spread out to sheets, slacks always appear at the both edges due to moisture absorbing. In this case if the surface of the film is heated at a proper temperature in a range of 50W130°C, thermal strain can be eliminated because difference of moisture rates at the edge and the center in the direction of the width is kept at 0.05% or less. As a result, a sheet having high surface characteristics which prevent dislocation during a secondary operation such as printing, coating, drilling, or cutting, is obtained.
COPYRIGHT: (C)1980,JPO&Japio
JP53109806A 1978-09-08 1978-09-08 Method for producing polyester film with excellent flatness and processed products thereof Expired JPS6045056B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53109806A JPS6045056B2 (en) 1978-09-08 1978-09-08 Method for producing polyester film with excellent flatness and processed products thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53109806A JPS6045056B2 (en) 1978-09-08 1978-09-08 Method for producing polyester film with excellent flatness and processed products thereof

Publications (2)

Publication Number Publication Date
JPS5537318A true JPS5537318A (en) 1980-03-15
JPS6045056B2 JPS6045056B2 (en) 1985-10-07

Family

ID=14519670

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53109806A Expired JPS6045056B2 (en) 1978-09-08 1978-09-08 Method for producing polyester film with excellent flatness and processed products thereof

Country Status (1)

Country Link
JP (1) JPS6045056B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59127233A (en) * 1983-01-12 1984-07-23 Fuji Photo Film Co Ltd Manufacture of magnetic recording medium
JPS60121529A (en) * 1983-12-05 1985-06-29 Konishiroku Photo Ind Co Ltd Production of magnetic recording medium
FR2690451A1 (en) * 1992-04-23 1993-10-29 Du Pont Dry ultrafine polyester film and applications thereof.
US5763073A (en) * 1992-04-23 1998-06-09 Bertrand; Rene Lucien Ultra-thin low moisture content polyester film and its applications

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3873664A (en) * 1973-08-29 1975-03-25 Celanese Corp Heat treatment of polyester rolls

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3873664A (en) * 1973-08-29 1975-03-25 Celanese Corp Heat treatment of polyester rolls

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59127233A (en) * 1983-01-12 1984-07-23 Fuji Photo Film Co Ltd Manufacture of magnetic recording medium
JPH0442728B2 (en) * 1983-01-12 1992-07-14 Fuji Photo Film Co Ltd
JPS60121529A (en) * 1983-12-05 1985-06-29 Konishiroku Photo Ind Co Ltd Production of magnetic recording medium
JPH0510731B2 (en) * 1983-12-05 1993-02-10 Konishiroku Photo Ind
FR2690451A1 (en) * 1992-04-23 1993-10-29 Du Pont Dry ultrafine polyester film and applications thereof.
US5763073A (en) * 1992-04-23 1998-06-09 Bertrand; Rene Lucien Ultra-thin low moisture content polyester film and its applications

Also Published As

Publication number Publication date
JPS6045056B2 (en) 1985-10-07

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