JPS573226A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS573226A JPS573226A JP7822380A JP7822380A JPS573226A JP S573226 A JPS573226 A JP S573226A JP 7822380 A JP7822380 A JP 7822380A JP 7822380 A JP7822380 A JP 7822380A JP S573226 A JPS573226 A JP S573226A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- magnetic recording
- recording medium
- coupling agent
- coating material
- 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.)
- Pending
Links
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
- Lubricants (AREA)
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
Abstract
PURPOSE:To improve the durability, running characteristics, and environmental reliability, etc., of a magnetic recording medium by preventing a magnetic recording layer from breaking away, by using a magnetic coating material obtained by kneading a titanium coupling agent with magnetic powder, a binder, etc. CONSTITUTION:A 0.5-7wt% titanium coupling agent is blended with magnetic powder of needlelike magnetic iron oxide, etc., and a solvent is added and mixed to wet the magnetic powder with the coupling agent. To the wet magnetic powder, a binder, such as vinyl chloride-vinyl acetate and vinyl alcohol copolymer and a solvent are added and mixed by stirring to adjust a magnetic coating material. This magnetic coating material is applied over a base to form a magnetic recording layer. Thus, the wear resistance of a magnetic recording medium to a head recorder system is improved and its abrasion is reduced.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7822380A JPS573226A (en) | 1980-06-10 | 1980-06-10 | Magnetic recording medium |
GB8117509A GB2081277B (en) | 1980-06-10 | 1981-06-08 | Magnetic recording layers |
DE19813123012 DE3123012A1 (en) | 1980-06-10 | 1981-06-10 | Magnetic recording material |
US06/470,180 US4415630A (en) | 1980-06-10 | 1983-02-28 | Process of making magnetic recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7822380A JPS573226A (en) | 1980-06-10 | 1980-06-10 | Magnetic recording medium |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS573226A true JPS573226A (en) | 1982-01-08 |
Family
ID=13656042
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7822380A Pending JPS573226A (en) | 1980-06-10 | 1980-06-10 | Magnetic recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS573226A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57210433A (en) * | 1981-06-20 | 1982-12-24 | Hitachi Maxell Ltd | Magnetic recording medium |
JPS5984343A (en) * | 1982-11-08 | 1984-05-16 | Konishiroku Photo Ind Co Ltd | Magnetic recording medium |
-
1980
- 1980-06-10 JP JP7822380A patent/JPS573226A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57210433A (en) * | 1981-06-20 | 1982-12-24 | Hitachi Maxell Ltd | Magnetic recording medium |
JPH0454288B2 (en) * | 1981-06-20 | 1992-08-31 | Hitachi Maxell | |
JPS5984343A (en) * | 1982-11-08 | 1984-05-16 | Konishiroku Photo Ind Co Ltd | Magnetic recording medium |
JPH0481263B2 (en) * | 1982-11-08 | 1992-12-22 | Konishiroku Photo Ind |
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