JPH0479057B2 - - Google Patents
Info
- Publication number
- JPH0479057B2 JPH0479057B2 JP57129778A JP12977882A JPH0479057B2 JP H0479057 B2 JPH0479057 B2 JP H0479057B2 JP 57129778 A JP57129778 A JP 57129778A JP 12977882 A JP12977882 A JP 12977882A JP H0479057 B2 JPH0479057 B2 JP H0479057B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- carbon black
- sample
- magnetic layer
- parts
- 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 33
- 239000006229 carbon black Substances 0.000 claims description 19
- 239000011164 primary particle Substances 0.000 claims description 5
- 241000872198 Serjania polyphylla Species 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 235000019241 carbon black Nutrition 0.000 description 18
- 239000000696 magnetic material Substances 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- -1 etc. Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- 229910001566 austenite Inorganic materials 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 235000014113 dietary fatty acids Nutrition 0.000 description 3
- 239000000194 fatty acid Substances 0.000 description 3
- 229930195729 fatty acid Natural products 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 229910015189 FeOx Inorganic materials 0.000 description 2
- 239000000020 Nitrocellulose Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 229920001220 nitrocellulos Polymers 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920001228 polyisocyanate Polymers 0.000 description 2
- 239000005056 polyisocyanate Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane 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
- IIZPXYDJLKNOIY-JXPKJXOSSA-N 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCC\C=C/C\C=C/C\C=C/C\C=C/CCCCC IIZPXYDJLKNOIY-JXPKJXOSSA-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
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910020630 Co Ni Inorganic materials 0.000 description 1
- 229910002440 Co–Ni Inorganic materials 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- BCKXLBQYZLBQEK-KVVVOXFISA-M Sodium oleate Chemical compound [Na+].CCCCCCCC\C=C/CCCCCCCC([O-])=O BCKXLBQYZLBQEK-KVVVOXFISA-M 0.000 description 1
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 229920002433 Vinyl chloride-vinyl acetate copolymer Polymers 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- AYOHIQLKSOJJQH-UHFFFAOYSA-N dibutyltin Chemical compound CCCC[Sn]CCCC AYOHIQLKSOJJQH-UHFFFAOYSA-N 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000635 electron micrograph Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 150000002193 fatty amides Chemical class 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000002223 garnet Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 239000000787 lecithin Substances 0.000 description 1
- 229940067606 lecithin Drugs 0.000 description 1
- 235000010445 lecithin Nutrition 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229940057995 liquid paraffin Drugs 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- AJCDFVKYMIUXCR-UHFFFAOYSA-N oxobarium;oxo(oxoferriooxy)iron Chemical compound [Ba]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O AJCDFVKYMIUXCR-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000011112 polyethylene naphthalate Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229910000859 α-Fe Inorganic materials 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
- G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
- G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
- G11B5/708—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by addition of non-magnetic particles to the layer
Landscapes
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57129778A JPS5919234A (ja) | 1982-07-26 | 1982-07-26 | 磁気記録体 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57129778A JPS5919234A (ja) | 1982-07-26 | 1982-07-26 | 磁気記録体 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5919234A JPS5919234A (ja) | 1984-01-31 |
| JPH0479057B2 true JPH0479057B2 (fr) | 1992-12-14 |
Family
ID=15017981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57129778A Granted JPS5919234A (ja) | 1982-07-26 | 1982-07-26 | 磁気記録体 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5919234A (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS613318A (ja) * | 1984-06-15 | 1986-01-09 | Hitachi Maxell Ltd | 磁気記録媒体 |
| KR880009340A (ko) * | 1987-02-14 | 1988-09-14 | 나가이 아쯔시 | 자기기록 매체 및 그 제조방법 |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS48101908A (fr) * | 1972-04-07 | 1973-12-21 | ||
| JPS5023605A (fr) * | 1973-06-29 | 1975-03-13 | ||
| JPS5092101A (fr) * | 1973-12-14 | 1975-07-23 | ||
| JPS5228201A (en) * | 1975-08-28 | 1977-03-03 | Toshiba Corp | Tuner circuit |
| JPS5297709A (en) * | 1977-02-18 | 1977-08-16 | Hitachi Maxell | Magnetic recording material |
| JPS5297710A (en) * | 1977-02-18 | 1977-08-16 | Hitachi Maxell | Magnetic recording material |
| JPS5347806A (en) * | 1977-06-29 | 1978-04-28 | Hitachi Maxell | Magnetic recording material |
| JPS5651027A (en) * | 1979-10-02 | 1981-05-08 | Hitachi Maxell Ltd | Magnetic recording medium |
| JPS5651025A (en) * | 1979-10-02 | 1981-05-08 | Hitachi Maxell Ltd | Magnetic recording medium |
| JPS5680826A (en) * | 1979-11-30 | 1981-07-02 | Sony Corp | Magnetic recording medium |
| JPS5794928A (en) * | 1980-12-03 | 1982-06-12 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
| JPS58133626A (ja) * | 1982-02-04 | 1983-08-09 | Fuji Photo Film Co Ltd | 磁気記録体 |
-
1982
- 1982-07-26 JP JP57129778A patent/JPS5919234A/ja active Granted
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS48101908A (fr) * | 1972-04-07 | 1973-12-21 | ||
| JPS5023605A (fr) * | 1973-06-29 | 1975-03-13 | ||
| JPS5092101A (fr) * | 1973-12-14 | 1975-07-23 | ||
| JPS5228201A (en) * | 1975-08-28 | 1977-03-03 | Toshiba Corp | Tuner circuit |
| JPS5297709A (en) * | 1977-02-18 | 1977-08-16 | Hitachi Maxell | Magnetic recording material |
| JPS5297710A (en) * | 1977-02-18 | 1977-08-16 | Hitachi Maxell | Magnetic recording material |
| JPS5347806A (en) * | 1977-06-29 | 1978-04-28 | Hitachi Maxell | Magnetic recording material |
| JPS5651027A (en) * | 1979-10-02 | 1981-05-08 | Hitachi Maxell Ltd | Magnetic recording medium |
| JPS5651025A (en) * | 1979-10-02 | 1981-05-08 | Hitachi Maxell Ltd | Magnetic recording medium |
| JPS5680826A (en) * | 1979-11-30 | 1981-07-02 | Sony Corp | Magnetic recording medium |
| JPS5794928A (en) * | 1980-12-03 | 1982-06-12 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
| JPS58133626A (ja) * | 1982-02-04 | 1983-08-09 | Fuji Photo Film Co Ltd | 磁気記録体 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5919234A (ja) | 1984-01-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS59142742A (ja) | 磁気記録媒体 | |
| US4551386A (en) | Magnetic recording materials | |
| US7115331B2 (en) | Magnetic recording medium having narrow pulse width characteristics | |
| US4812358A (en) | Magnetic recording medium | |
| JPH0479057B2 (fr) | ||
| US4835049A (en) | Magnetic recording medium | |
| JPS6292128A (ja) | 磁気記録媒体 | |
| US20070224459A1 (en) | Magnetic recording medium including carbon nanotubes | |
| US20040191570A1 (en) | Magnetic recording media having increased high density broadband signal-to-noise ratio | |
| US5082728A (en) | Magnetic disc | |
| JPS62154225A (ja) | 磁気ディスク | |
| JPS60173720A (ja) | 磁気記録媒体 | |
| JPH0479056B2 (fr) | ||
| JP2632943B2 (ja) | 磁気記録媒体 | |
| JPH0479058B2 (fr) | ||
| JPH0479059B2 (fr) | ||
| JP2649941B2 (ja) | 磁気記録媒体 | |
| JPS621115A (ja) | 磁気記録媒体 | |
| US20040191573A1 (en) | Magnetic recording media exhibiting decreased tape dropout performance | |
| JPH06195687A (ja) | 磁気記録媒体 | |
| JP2649942B2 (ja) | 磁気記録媒体 | |
| JPH0746420B2 (ja) | 磁気記録媒体 | |
| JPH06162475A (ja) | 磁気記録媒体 | |
| US20040191574A1 (en) | Magnetic recording media having increased skirt signal-to-noise and carrier-to-noise ratios | |
| US20070020488A1 (en) | Magnetic recording medium having a single, thin, high-coercivity magnetic recording layer |