JPS6343811B2 - - Google Patents
Info
- Publication number
- JPS6343811B2 JPS6343811B2 JP13214580A JP13214580A JPS6343811B2 JP S6343811 B2 JPS6343811 B2 JP S6343811B2 JP 13214580 A JP13214580 A JP 13214580A JP 13214580 A JP13214580 A JP 13214580A JP S6343811 B2 JPS6343811 B2 JP S6343811B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- magnetic field
- coating
- recording
- coating film
- 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
Links
- 238000000576 coating method Methods 0.000 claims description 29
- 239000011248 coating agent Substances 0.000 claims description 28
- 239000010419 fine particle Substances 0.000 claims description 17
- 239000003973 paint Substances 0.000 claims description 13
- 230000005415 magnetization Effects 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000000758 substrate Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 description 13
- 229910000859 α-Fe Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000006249 magnetic particle Substances 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N Methyl ethyl ketone Natural products CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 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 2
- 239000002245 particle Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 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
- 229910020517 Co—Ti Inorganic materials 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 229920002433 Vinyl chloride-vinyl acetate copolymer Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 150000002500 ions Chemical group 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 229940067606 lecithin Drugs 0.000 description 1
- 235000010445 lecithin Nutrition 0.000 description 1
- 239000000787 lecithin Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009827 uniform distribution Methods 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
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
- G11B5/842—Coating a support with a liquid magnetic dispersion
- G11B5/845—Coating a support with a liquid magnetic dispersion in a magnetic field
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13214580A JPS5758247A (en) | 1980-09-22 | 1980-09-22 | Manufacture of vertical magnetic recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13214580A JPS5758247A (en) | 1980-09-22 | 1980-09-22 | Manufacture of vertical magnetic recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5758247A JPS5758247A (en) | 1982-04-07 |
| JPS6343811B2 true JPS6343811B2 (US06373033-20020416-M00071.png) | 1988-09-01 |
Family
ID=15074402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13214580A Granted JPS5758247A (en) | 1980-09-22 | 1980-09-22 | Manufacture of vertical magnetic recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5758247A (US06373033-20020416-M00071.png) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01167910U (US06373033-20020416-M00071.png) * | 1988-05-09 | 1989-11-27 |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5598005A (en) * | 1979-01-19 | 1980-07-25 | Hitachi Ltd | Method and device for installing body |
| JPS5968826A (ja) * | 1982-10-12 | 1984-04-18 | Toshiba Corp | 垂直磁気記録媒体の製造方法 |
| JPS60143429A (ja) * | 1983-12-29 | 1985-07-29 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
| JPS6163927A (ja) * | 1984-09-05 | 1986-04-02 | Fujitsu Ltd | 垂直磁化磁気デイスクの製造方法 |
| JPH01227221A (ja) * | 1988-03-08 | 1989-09-11 | Sony Corp | 磁気記録媒体の製造方法 |
| JP2843342B2 (ja) * | 1988-11-28 | 1999-01-06 | ソニー株式会社 | 磁気記録媒体の製造方法 |
| JPH0487027A (ja) * | 1990-07-31 | 1992-03-19 | Taiyo Yuden Co Ltd | 磁気記録媒体の製造法及び磁場配向処理装置 |
-
1980
- 1980-09-22 JP JP13214580A patent/JPS5758247A/ja active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01167910U (US06373033-20020416-M00071.png) * | 1988-05-09 | 1989-11-27 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5758247A (en) | 1982-04-07 |
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