JPH0226289B2 - - Google Patents
Info
- Publication number
- JPH0226289B2 JPH0226289B2 JP3269684A JP3269684A JPH0226289B2 JP H0226289 B2 JPH0226289 B2 JP H0226289B2 JP 3269684 A JP3269684 A JP 3269684A JP 3269684 A JP3269684 A JP 3269684A JP H0226289 B2 JPH0226289 B2 JP H0226289B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- back coat
- coat layer
- layer
- calendering
- 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
- 238000003490 calendering Methods 0.000 claims description 16
- 239000011230 binding agent Substances 0.000 claims description 5
- 238000004381 surface treatment Methods 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000000049 pigment Substances 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 34
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 230000005347 demagnetization Effects 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000000020 Nitrocellulose Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive 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
- 229910001566 austenite Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- -1 etc. Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 229920001220 nitrocellulos Polymers 0.000 description 1
- 239000012860 organic pigment Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Landscapes
- Manufacturing Of Magnetic Record Carriers (AREA)
- Magnetic Record Carriers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3269684A JPS60179941A (ja) | 1984-02-24 | 1984-02-24 | 磁気記録媒体の製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3269684A JPS60179941A (ja) | 1984-02-24 | 1984-02-24 | 磁気記録媒体の製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60179941A JPS60179941A (ja) | 1985-09-13 |
| JPH0226289B2 true JPH0226289B2 (enrdf_load_stackoverflow) | 1990-06-08 |
Family
ID=12366012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3269684A Granted JPS60179941A (ja) | 1984-02-24 | 1984-02-24 | 磁気記録媒体の製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60179941A (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0992994A (ja) * | 1995-09-21 | 1997-04-04 | Asia Electron Inc | 冷却板 |
-
1984
- 1984-02-24 JP JP3269684A patent/JPS60179941A/ja active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0992994A (ja) * | 1995-09-21 | 1997-04-04 | Asia Electron Inc | 冷却板 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60179941A (ja) | 1985-09-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5489466A (en) | Magnetic recording medium comprising a lower nonmagnetic layer containing a surface coated inorganic powder and an upper magetic layer | |
| JPS59203229A (ja) | 磁気記録媒体 | |
| US4741954A (en) | Magnetic recording medium | |
| US5324582A (en) | Magnetic recording medium | |
| JPH0226289B2 (enrdf_load_stackoverflow) | ||
| JPH0226288B2 (enrdf_load_stackoverflow) | ||
| JPH048855B2 (enrdf_load_stackoverflow) | ||
| JPH0232688B2 (enrdf_load_stackoverflow) | ||
| US5175048A (en) | Magnetic recording medium | |
| JPS60179939A (ja) | 磁気記録媒体の製造方法 | |
| JPH0363121B2 (enrdf_load_stackoverflow) | ||
| JPS60151833A (ja) | 磁気記録媒体 | |
| JPS59203228A (ja) | 磁気記録媒体 | |
| US5591512A (en) | Magnetic recording medium having a magnetic layer comprising iron powder and an underlayer comprising non magnetic powders having specified particle size ratios | |
| KR930001887B1 (ko) | 자기기록 매체 | |
| JPS62185242A (ja) | 磁気記録媒体の製造方法 | |
| JPH01102728A (ja) | 磁気記録媒体 | |
| JPH0535483B2 (enrdf_load_stackoverflow) | ||
| JP2626245B2 (ja) | 磁気記録媒体 | |
| JPS5992435A (ja) | 磁気記録媒体 | |
| JPS61182630A (ja) | 磁気記録媒体の製造方法 | |
| JPH0746417B2 (ja) | 磁気記録媒体 | |
| JPS62209724A (ja) | 磁気記録媒体 | |
| JPS62241127A (ja) | 磁気記録媒体 | |
| JPS5992436A (ja) | 磁気記録媒体 |