JPS5517816A - Magnetic recording media - Google Patents
Magnetic recording mediaInfo
- Publication number
- JPS5517816A JPS5517816A JP8872878A JP8872878A JPS5517816A JP S5517816 A JPS5517816 A JP S5517816A JP 8872878 A JP8872878 A JP 8872878A JP 8872878 A JP8872878 A JP 8872878A JP S5517816 A JPS5517816 A JP S5517816A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- higher fatty
- lubricant
- coating material
- magnetic powder
- 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
Landscapes
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
Abstract
PURPOSE: To improve the wear proof of a magnetic layer and increase its durability by using the lubricant consisting of higher fatty acid ester and higher fatty alcohol together with the non-magnetic powder with Mohs' hardness of 6 and over.
CONSTITUTION: A magnetic layer is formed by the magnetic coating material made by mixing the non-magnetic power with Mohs' hardness of 6 and over and, desirably, average particle size of 0.5 to 2μ, such as α-iron oxide, together with magnetic powder, binder components, conductive submaterials, and solvents. The lubricant solution consisting of the higher fatty acid ester with desirable melting point of 10 to 40°C and the higher fatty alcohol with C12W20 in the weight ratio 99/1 to 80/20 is coated on the magnetic layer. Or, the lubricant may be added to the magnetic coating material. It is desirable that the quantity of addition of the non-magnetic powder to the magnetic powder is 1 to 3wt% and that of the lubricant to the total quantity of coating material is 0.1 to 20wt%.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8872878A JPS5517816A (en) | 1978-07-19 | 1978-07-19 | Magnetic recording media |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8872878A JPS5517816A (en) | 1978-07-19 | 1978-07-19 | Magnetic recording media |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5517816A true JPS5517816A (en) | 1980-02-07 |
Family
ID=13950969
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8872878A Pending JPS5517816A (en) | 1978-07-19 | 1978-07-19 | Magnetic recording media |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5517816A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57179945A (en) * | 1981-04-28 | 1982-11-05 | Fuji Photo Film Co Ltd | Magnetic recording medium |
JPS5975432A (en) * | 1982-10-22 | 1984-04-28 | Fuji Photo Film Co Ltd | Magnetic recording body |
US4584243A (en) * | 1982-11-01 | 1986-04-22 | Sumitomo Chemical Company, Limited | Abrasive, production thereof and use thereof in magnetic recording medium |
US4590127A (en) * | 1982-11-02 | 1986-05-20 | Sumitomo Chemical Company, Limited | Abrasive used in magnetic recording medium and production thereof |
-
1978
- 1978-07-19 JP JP8872878A patent/JPS5517816A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57179945A (en) * | 1981-04-28 | 1982-11-05 | Fuji Photo Film Co Ltd | Magnetic recording medium |
JPH0353687B2 (en) * | 1981-04-28 | 1991-08-15 | Fuji Photo Film Co Ltd | |
JPS5975432A (en) * | 1982-10-22 | 1984-04-28 | Fuji Photo Film Co Ltd | Magnetic recording body |
JPH0479059B2 (en) * | 1982-10-22 | 1992-12-14 | Fuji Photo Film Co Ltd | |
US4584243A (en) * | 1982-11-01 | 1986-04-22 | Sumitomo Chemical Company, Limited | Abrasive, production thereof and use thereof in magnetic recording medium |
US4590127A (en) * | 1982-11-02 | 1986-05-20 | Sumitomo Chemical Company, Limited | Abrasive used in magnetic recording medium and production thereof |
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