JPS5642629A - Biaxially-stretched polyester film for photograph - Google Patents

Biaxially-stretched polyester film for photograph

Info

Publication number
JPS5642629A
JPS5642629A JP11907279A JP11907279A JPS5642629A JP S5642629 A JPS5642629 A JP S5642629A JP 11907279 A JP11907279 A JP 11907279A JP 11907279 A JP11907279 A JP 11907279A JP S5642629 A JPS5642629 A JP S5642629A
Authority
JP
Japan
Prior art keywords
film
biaxially
stretched
given value
average particle
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
JP11907279A
Other languages
Japanese (ja)
Other versions
JPS6124978B2 (en
Inventor
Seiji Sakamoto
Masaji Watanabe
Takuo Nakahara
Nobuo Shiroishi
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.)
Diafoil Co Ltd
Original Assignee
Diafoil 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 Diafoil Co Ltd filed Critical Diafoil Co Ltd
Priority to JP11907279A priority Critical patent/JPS5642629A/en
Publication of JPS5642629A publication Critical patent/JPS5642629A/en
Publication of JPS6124978B2 publication Critical patent/JPS6124978B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Compositions Of Macromolecular Compounds (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

PURPOSE: To obtain a film which is excellent in transparency and smoothness, by a method wherein a given minute amount of a porous amorphous silica, in which an average particle diameter is of a given value, is blended to a polyester component in which a film haze becomes a given value when molding biaxially-stretched film having a given value of the thickness.
CONSTITUTION: When it is biaxial-stretched into a film having the thickness of 100μ, and when manufacturing a polyester component providing a film whose film haze is below 1%, 1W40ppm of porous amorphous silica, whose average particle diameter is 0.2W2μ, is added to complete a polymerization, and filming takes place by the use of said polyester. The filming method is that, for example, the resin is fused for extrusion in a film state at about 270W295°C, and is then cooled for curing at 50W70°C to form an amorphous sheet. The resultant work is then gradually biaxially-stretched longitudinally and transversely, and is heat-treated at 160W 240°C.
COPYRIGHT: (C)1981,JPO&Japio
JP11907279A 1979-09-17 1979-09-17 Biaxially-stretched polyester film for photograph Granted JPS5642629A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11907279A JPS5642629A (en) 1979-09-17 1979-09-17 Biaxially-stretched polyester film for photograph

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11907279A JPS5642629A (en) 1979-09-17 1979-09-17 Biaxially-stretched polyester film for photograph

Publications (2)

Publication Number Publication Date
JPS5642629A true JPS5642629A (en) 1981-04-20
JPS6124978B2 JPS6124978B2 (en) 1986-06-13

Family

ID=14752182

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11907279A Granted JPS5642629A (en) 1979-09-17 1979-09-17 Biaxially-stretched polyester film for photograph

Country Status (1)

Country Link
JP (1) JPS5642629A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5691231A (en) * 1979-12-25 1981-07-24 Diafoil Co Ltd Polyester film for photosensitive recording body
JPS5975245A (en) * 1982-10-02 1984-04-27 ヘキスト・アクチエンゲゼルシヤフト Manufacture of photosensitive transfer material and photore-sist stencil
JPS61254328A (en) * 1985-05-08 1986-11-12 Teijin Ltd Biaxially oriented polyester film for magnetic recording

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH059823Y2 (en) * 1986-12-15 1993-03-10
JPH0195475A (en) * 1987-10-08 1989-04-13 Yazaki Corp Waterproof connector
JPH0289783U (en) * 1988-12-28 1990-07-17

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5192857A (en) * 1975-02-14 1976-08-14 NIJIKUENSHINHORIESUTERUFUIRUMU
JPS5286471A (en) * 1976-01-12 1977-07-18 Teijin Ltd Two dimensional orientated film

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5192857A (en) * 1975-02-14 1976-08-14 NIJIKUENSHINHORIESUTERUFUIRUMU
JPS5286471A (en) * 1976-01-12 1977-07-18 Teijin Ltd Two dimensional orientated film

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5691231A (en) * 1979-12-25 1981-07-24 Diafoil Co Ltd Polyester film for photosensitive recording body
JPH0368368B2 (en) * 1979-12-25 1991-10-28 Daiafoil
JPS5975245A (en) * 1982-10-02 1984-04-27 ヘキスト・アクチエンゲゼルシヤフト Manufacture of photosensitive transfer material and photore-sist stencil
JPS61254328A (en) * 1985-05-08 1986-11-12 Teijin Ltd Biaxially oriented polyester film for magnetic recording
JPH0425857B2 (en) * 1985-05-08 1992-05-01 Teijin Ltd

Also Published As

Publication number Publication date
JPS6124978B2 (en) 1986-06-13

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