JPH0243255B2 - - Google Patents
Info
- Publication number
- JPH0243255B2 JPH0243255B2 JP13213580A JP13213580A JPH0243255B2 JP H0243255 B2 JPH0243255 B2 JP H0243255B2 JP 13213580 A JP13213580 A JP 13213580A JP 13213580 A JP13213580 A JP 13213580A JP H0243255 B2 JPH0243255 B2 JP H0243255B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- magnetic field
- paint
- recording
- fine particles
- 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
- 238000000034 method Methods 0.000 claims description 25
- 239000003973 paint Substances 0.000 claims description 23
- 239000010419 fine particle Substances 0.000 claims description 20
- 239000000758 substrate Substances 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 229910000859 α-Fe Inorganic materials 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 4
- 230000005415 magnetization Effects 0.000 description 16
- 238000000576 coating method Methods 0.000 description 13
- 239000011248 coating agent Substances 0.000 description 10
- 230000003746 surface roughness Effects 0.000 description 10
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920006267 polyester film Polymers 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 238000003490 calendering Methods 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000006249 magnetic particle Substances 0.000 description 2
- 239000006247 magnetic powder Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- QMMJWQMCMRUYTG-UHFFFAOYSA-N 1,2,4,5-tetrachloro-3-(trifluoromethyl)benzene Chemical compound FC(F)(F)C1=C(Cl)C(Cl)=CC(Cl)=C1Cl QMMJWQMCMRUYTG-UHFFFAOYSA-N 0.000 description 1
- 229910020517 Co—Ti Inorganic materials 0.000 description 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 1
- 102000007156 Resistin Human genes 0.000 description 1
- 108010047909 Resistin Proteins 0.000 description 1
- 229920002433 Vinyl chloride-vinyl acetate copolymer Polymers 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 159000000009 barium salts Chemical class 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 150000001868 cobalt Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- AJCDFVKYMIUXCR-UHFFFAOYSA-N oxobarium;oxo(oxoferriooxy)iron Chemical class [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
- 239000000843 powder Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 150000003608 titanium Chemical class 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 |
|---|---|---|---|
| JP13213580A JPS5758243A (en) | 1980-09-22 | 1980-09-22 | Manufacture of vertical magnetic recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13213580A JPS5758243A (en) | 1980-09-22 | 1980-09-22 | Manufacture of vertical magnetic recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5758243A JPS5758243A (en) | 1982-04-07 |
| JPH0243255B2 true JPH0243255B2 (en, 2012) | 1990-09-27 |
Family
ID=15074186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13213580A Granted JPS5758243A (en) | 1980-09-22 | 1980-09-22 | Manufacture of vertical magnetic recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5758243A (en, 2012) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05329417A (ja) * | 1992-03-28 | 1993-12-14 | Sony Corp | 塗布装置及び塗布方法 |
-
1980
- 1980-09-22 JP JP13213580A patent/JPS5758243A/ja active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05329417A (ja) * | 1992-03-28 | 1993-12-14 | Sony Corp | 塗布装置及び塗布方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5758243A (en) | 1982-04-07 |
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