JPH0479050B2 - - Google Patents
Info
- Publication number
- JPH0479050B2 JPH0479050B2 JP58007691A JP769183A JPH0479050B2 JP H0479050 B2 JPH0479050 B2 JP H0479050B2 JP 58007691 A JP58007691 A JP 58007691A JP 769183 A JP769183 A JP 769183A JP H0479050 B2 JPH0479050 B2 JP H0479050B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic recording
- hub
- tape
- hours
- shrinkage rate
- 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
- 230000005291 magnetic effect Effects 0.000 claims description 45
- 230000003746 surface roughness Effects 0.000 claims description 10
- 230000008602 contraction Effects 0.000 description 6
- 229920006267 polyester film Polymers 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- -1 C-90 Chemical compound 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 229920002554 vinyl polymer Polymers 0.000 description 3
- 239000003973 paint Substances 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004695 Polyether sulfone Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920006289 polycarbonate film Polymers 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 239000004711 α-olefin 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
- G11B5/73935—Polyester substrates, e.g. polyethylene terephthalate characterised by roughness or surface features, e.g. by added particles
-
- 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
-
- 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
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58007691A JPS59132421A (ja) | 1983-01-20 | 1983-01-20 | 磁気記録媒体 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58007691A JPS59132421A (ja) | 1983-01-20 | 1983-01-20 | 磁気記録媒体 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59132421A JPS59132421A (ja) | 1984-07-30 |
| JPH0479050B2 true JPH0479050B2 (de) | 1992-12-14 |
Family
ID=11672798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58007691A Granted JPS59132421A (ja) | 1983-01-20 | 1983-01-20 | 磁気記録媒体 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59132421A (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61104326A (ja) * | 1984-10-23 | 1986-05-22 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
| JPH0766520B2 (ja) * | 1985-01-08 | 1995-07-19 | 富士写真フイルム株式会社 | 磁気記録媒体 |
| JPH0547140A (ja) * | 1991-08-10 | 1993-02-26 | Hitachi Maxell Ltd | 磁気テ−プカ−トリツジ |
| JPH09120523A (ja) * | 1996-06-17 | 1997-05-06 | Fuji Photo Film Co Ltd | ビデオテープ |
| JP4190447B2 (ja) * | 2004-03-26 | 2008-12-03 | 富士フイルム株式会社 | リーダーテープおよびこれを用いた磁気テープカートリッジ |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5099506A (de) * | 1973-12-29 | 1975-08-07 | ||
| JPS5396072A (en) * | 1977-02-02 | 1978-08-22 | Teijin Ltd | Preparation of polyester film with excellent dimensional stability |
| JPS5434206A (en) * | 1977-08-23 | 1979-03-13 | Teijin Ltd | Polyester film |
| JPS54159203A (en) * | 1978-06-07 | 1979-12-15 | Fuji Photo Film Co Ltd | Audio magnetic recording tape |
| JPS57150130A (en) * | 1981-03-12 | 1982-09-16 | Fuji Photo Film Co Ltd | Magnetic recording medium |
-
1983
- 1983-01-20 JP JP58007691A patent/JPS59132421A/ja active Granted
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5099506A (de) * | 1973-12-29 | 1975-08-07 | ||
| JPS5396072A (en) * | 1977-02-02 | 1978-08-22 | Teijin Ltd | Preparation of polyester film with excellent dimensional stability |
| JPS5434206A (en) * | 1977-08-23 | 1979-03-13 | Teijin Ltd | Polyester film |
| JPS54159203A (en) * | 1978-06-07 | 1979-12-15 | Fuji Photo Film Co Ltd | Audio magnetic recording tape |
| JPS57150130A (en) * | 1981-03-12 | 1982-09-16 | Fuji Photo Film Co Ltd | Magnetic recording medium |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59132421A (ja) | 1984-07-30 |
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