JPH0413135B2 - - Google Patents
Info
- Publication number
- JPH0413135B2 JPH0413135B2 JP58003084A JP308483A JPH0413135B2 JP H0413135 B2 JPH0413135 B2 JP H0413135B2 JP 58003084 A JP58003084 A JP 58003084A JP 308483 A JP308483 A JP 308483A JP H0413135 B2 JPH0413135 B2 JP H0413135B2
- Authority
- JP
- Japan
- Prior art keywords
- film
- plane
- less
- stretching
- humidity
- 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.)
- Expired - Lifetime
Links
- 229920006267 polyester film Polymers 0.000 claims description 7
- 238000009998 heat setting Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 239000010408 film Substances 0.000 description 49
- 238000000034 method Methods 0.000 description 13
- 238000010438 heat treatment Methods 0.000 description 8
- 230000002427 irreversible effect Effects 0.000 description 7
- 230000008602 contraction Effects 0.000 description 5
- 229920000728 polyester Polymers 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 238000012805 post-processing Methods 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- -1 titanium dioxide Chemical class 0.000 description 2
- MMINFSMURORWKH-UHFFFAOYSA-N 3,6-dioxabicyclo[6.2.2]dodeca-1(10),8,11-triene-2,7-dione Chemical group O=C1OCCOC(=O)C2=CC=C1C=C2 MMINFSMURORWKH-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 229920001634 Copolyester Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
- G11B5/739—Magnetic recording media substrates
- G11B5/73923—Organic polymer substrates
- G11B5/73927—Polyester substrates, e.g. polyethylene terephthalate
Landscapes
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Magnetic Record Carriers (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58003084A JPS59139131A (ja) | 1983-01-12 | 1983-01-12 | 磁気デイスク用ポリエステルフイルム |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58003084A JPS59139131A (ja) | 1983-01-12 | 1983-01-12 | 磁気デイスク用ポリエステルフイルム |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59139131A JPS59139131A (ja) | 1984-08-09 |
JPH0413135B2 true JPH0413135B2 (US07943777-20110517-C00090.png) | 1992-03-06 |
Family
ID=11547471
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58003084A Granted JPS59139131A (ja) | 1983-01-12 | 1983-01-12 | 磁気デイスク用ポリエステルフイルム |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59139131A (US07943777-20110517-C00090.png) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0626015B2 (ja) * | 1985-10-09 | 1994-04-06 | 帝人株式会社 | 磁気記録フレキシブルデイスク |
JPS62124926A (ja) * | 1985-11-27 | 1987-06-06 | Teijin Ltd | ポリエステルフイルム |
JPS63288735A (ja) * | 1987-05-21 | 1988-11-25 | Teijin Ltd | ポリエステルフイルム |
JPH08132523A (ja) * | 1994-11-09 | 1996-05-28 | Toray Ind Inc | 低熱収縮性ポリエステルフィルム |
JPH08164558A (ja) * | 1994-12-15 | 1996-06-25 | Toray Ind Inc | ポリエステルフィルム |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5757629A (en) * | 1980-09-25 | 1982-04-06 | Teijin Ltd | Manufacture of polyester film |
JPS5757630A (en) * | 1980-09-25 | 1982-04-06 | Teijin Ltd | Manufacture of biaxially drawn polyester film |
JPS5759717A (en) * | 1980-09-29 | 1982-04-10 | Teijin Ltd | Preparation of biaxially oriented polyester film |
JPS58168526A (ja) * | 1982-03-31 | 1983-10-04 | Teijin Ltd | 近赤外線吸収性ポリエステルフイルム |
-
1983
- 1983-01-12 JP JP58003084A patent/JPS59139131A/ja active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5757629A (en) * | 1980-09-25 | 1982-04-06 | Teijin Ltd | Manufacture of polyester film |
JPS5757630A (en) * | 1980-09-25 | 1982-04-06 | Teijin Ltd | Manufacture of biaxially drawn polyester film |
JPS5759717A (en) * | 1980-09-29 | 1982-04-10 | Teijin Ltd | Preparation of biaxially oriented polyester film |
JPS58168526A (ja) * | 1982-03-31 | 1983-10-04 | Teijin Ltd | 近赤外線吸収性ポリエステルフイルム |
Also Published As
Publication number | Publication date |
---|---|
JPS59139131A (ja) | 1984-08-09 |