JPS58153231A - 磁気記録テ−プ - Google Patents
磁気記録テ−プInfo
- Publication number
- JPS58153231A JPS58153231A JP57033800A JP3380082A JPS58153231A JP S58153231 A JPS58153231 A JP S58153231A JP 57033800 A JP57033800 A JP 57033800A JP 3380082 A JP3380082 A JP 3380082A JP S58153231 A JPS58153231 A JP S58153231A
- Authority
- JP
- Japan
- Prior art keywords
- film
- magnetic recording
- magnetic
- longitudinal direction
- polyethylene terephthalate
- 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
Links
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 45
- 229920002799 BoPET Polymers 0.000 claims abstract description 5
- 229920000139 polyethylene terephthalate Polymers 0.000 abstract description 10
- 239000005020 polyethylene terephthalate Substances 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 7
- 238000004804 winding Methods 0.000 abstract description 7
- 230000001788 irregular Effects 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000007740 vapor deposition Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 16
- 230000005294 ferromagnetic effect Effects 0.000 description 8
- -1 polyethylene terephthalate Polymers 0.000 description 8
- 239000000696 magnetic material Substances 0.000 description 6
- AYTAKQFHWFYBMA-UHFFFAOYSA-N chromium dioxide Chemical compound O=[Cr]=O AYTAKQFHWFYBMA-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000004544 sputter deposition Methods 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 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
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 238000007733 ion plating Methods 0.000 description 2
- 229910001004 magnetic alloy Inorganic materials 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000001771 vacuum deposition Methods 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002356 single layer 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
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000037303 wrinkles Effects 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
- Laminated Bodies (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 |
|---|---|---|---|
| JP57033800A JPS58153231A (ja) | 1982-03-05 | 1982-03-05 | 磁気記録テ−プ |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57033800A JPS58153231A (ja) | 1982-03-05 | 1982-03-05 | 磁気記録テ−プ |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58153231A true JPS58153231A (ja) | 1983-09-12 |
| JPH024059B2 JPH024059B2 (enrdf_load_stackoverflow) | 1990-01-25 |
Family
ID=12396543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57033800A Granted JPS58153231A (ja) | 1982-03-05 | 1982-03-05 | 磁気記録テ−プ |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58153231A (enrdf_load_stackoverflow) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62219317A (ja) * | 1986-03-20 | 1987-09-26 | Sony Corp | 金属薄膜型磁気記録媒体 |
| KR20000067585A (ko) * | 1999-04-29 | 2000-11-25 | 장용균 | 이축배향 폴리에스테르 필름의 제조방법 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50139872A (enrdf_load_stackoverflow) * | 1974-04-26 | 1975-11-08 | ||
| JPS51115571A (en) * | 1975-04-04 | 1976-10-12 | Asahi Chemical Ind | Method of manufacturing polyester film |
| JPS548672A (en) * | 1977-06-21 | 1979-01-23 | Toray Ind Inc | Production of polyester film |
| JPS5522915A (en) * | 1978-08-07 | 1980-02-19 | Toray Ind Inc | Manufacture of polyester film |
| JPS5527211A (en) * | 1978-08-15 | 1980-02-27 | Toray Ind Inc | Producing process of polyester film |
-
1982
- 1982-03-05 JP JP57033800A patent/JPS58153231A/ja active Granted
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50139872A (enrdf_load_stackoverflow) * | 1974-04-26 | 1975-11-08 | ||
| JPS51115571A (en) * | 1975-04-04 | 1976-10-12 | Asahi Chemical Ind | Method of manufacturing polyester film |
| JPS548672A (en) * | 1977-06-21 | 1979-01-23 | Toray Ind Inc | Production of polyester film |
| JPS5522915A (en) * | 1978-08-07 | 1980-02-19 | Toray Ind Inc | Manufacture of polyester film |
| JPS5527211A (en) * | 1978-08-15 | 1980-02-27 | Toray Ind Inc | Producing process of polyester film |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62219317A (ja) * | 1986-03-20 | 1987-09-26 | Sony Corp | 金属薄膜型磁気記録媒体 |
| KR20000067585A (ko) * | 1999-04-29 | 2000-11-25 | 장용균 | 이축배향 폴리에스테르 필름의 제조방법 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH024059B2 (enrdf_load_stackoverflow) | 1990-01-25 |
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