JPS6464833A - Manufacture of continuous low-shrinkage film - Google Patents

Manufacture of continuous low-shrinkage film

Info

Publication number
JPS6464833A
JPS6464833A JP22478387A JP22478387A JPS6464833A JP S6464833 A JPS6464833 A JP S6464833A JP 22478387 A JP22478387 A JP 22478387A JP 22478387 A JP22478387 A JP 22478387A JP S6464833 A JPS6464833 A JP S6464833A
Authority
JP
Japan
Prior art keywords
film
heat
treatment
range
contact
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
JP22478387A
Other languages
Japanese (ja)
Other versions
JPH07106603B2 (en
Inventor
Keiichi Uno
Akinori Nakajima
Masaaki Nakamura
Katsuhiro Tani
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.)
Toyobo Co Ltd
Original Assignee
Toyobo Co 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 Toyobo Co Ltd filed Critical Toyobo Co Ltd
Priority to JP22478387A priority Critical patent/JPH07106603B2/en
Publication of JPS6464833A publication Critical patent/JPS6464833A/en
Publication of JPH07106603B2 publication Critical patent/JPH07106603B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To obtain a heat resistant film, suitable for a base film, a cover film or the like for TAB or the like, and having a small heat shrinking coefficient, by a method wherein the film is not brought into contact with other solid materials and a tension, applied on the film, is specified and minimized within a necessary range, when the film is heat-treated while being run. CONSTITUTION:During heat treatment, a film is not brought into contact with other solid materials including the film itself. When the film comes into contact with other solid materials in the high temperature of a heat-treatment temperature, the slipping property of the film is not good, therefore, the film can not effect heat shrinkage and thermal expansion uniformly under a natural condition, and the flatness of the film is spoiled, whereby it becomes difficult to use the film for FPC, flat cable, TAN and the like. The heat-treatment temperature is within the range higher than 150 deg.C and lower than the melting point of the film - 20 deg.C. A tension Tg applied on the film at the heat-treatment temperature is in the range of 2.5dW<=T<=150dW and preferably in the range of 2.8 dW<=T<=60dW when the width of the film before the heat-treatment is shown by Wm and the thickness of the film before the heat-treatment is shown by (d)mum.
JP22478387A 1987-09-07 1987-09-07 Method for manufacturing long low-shrink film Expired - Fee Related JPH07106603B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22478387A JPH07106603B2 (en) 1987-09-07 1987-09-07 Method for manufacturing long low-shrink film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22478387A JPH07106603B2 (en) 1987-09-07 1987-09-07 Method for manufacturing long low-shrink film

Publications (2)

Publication Number Publication Date
JPS6464833A true JPS6464833A (en) 1989-03-10
JPH07106603B2 JPH07106603B2 (en) 1995-11-15

Family

ID=16819137

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22478387A Expired - Fee Related JPH07106603B2 (en) 1987-09-07 1987-09-07 Method for manufacturing long low-shrink film

Country Status (1)

Country Link
JP (1) JPH07106603B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03152805A (en) * 1989-11-09 1991-06-28 Teijin Ltd Insulated film for flyback transformer
US5123633A (en) * 1990-02-27 1992-06-23 Tokai Rubber Industries, Ltd. Fluid-filled elastic rotational coupling having two fluid chambers on each side of wing members
JPWO2019203243A1 (en) * 2018-04-20 2021-06-10 Ａｇｃ株式会社 Roll film, roll film manufacturing method, copper-clad laminate manufacturing method, and printed circuit board manufacturing method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03152805A (en) * 1989-11-09 1991-06-28 Teijin Ltd Insulated film for flyback transformer
US5123633A (en) * 1990-02-27 1992-06-23 Tokai Rubber Industries, Ltd. Fluid-filled elastic rotational coupling having two fluid chambers on each side of wing members
JPWO2019203243A1 (en) * 2018-04-20 2021-06-10 Ａｇｃ株式会社 Roll film, roll film manufacturing method, copper-clad laminate manufacturing method, and printed circuit board manufacturing method

Also Published As

Publication number Publication date
JPH07106603B2 (en) 1995-11-15

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Legal Events

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