JPS5517811A - Magnetic recording media - Google Patents
Magnetic recording mediaInfo
- Publication number
- JPS5517811A JPS5517811A JP8872378A JP8872378A JPS5517811A JP S5517811 A JPS5517811 A JP S5517811A JP 8872378 A JP8872378 A JP 8872378A JP 8872378 A JP8872378 A JP 8872378A JP S5517811 A JPS5517811 A JP S5517811A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- powder
- paraffin
- coating material
- mohs
- 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.)
- Granted
Links
Landscapes
- Magnetic Record Carriers (AREA)
- Paints Or Removers (AREA)
Abstract
PURPOSE: To improve the wearproof of a magnetic layer and increase its durability by using fluid paraffin and solid paraffin together with non-magnetic material powder with Mohs' hardness of 6 and more.
CONSTITUTION: Non-magnetic material powder with Mohs' hardness of 6 and more and average particle size of 0.5 to 2μ, such as α-iron oxide, is mixed together with magnetic powder, binder, organic solvent, and other appropriate components. This magnetic coating material is coated on a substrate, so that a magnetic layer is formed. The solution of the mixture of fluid paraffin and solid paraffin with the rate of 1/9 to 6/4 is coated on the magnetic layer. Or the mixture 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 the total quantity of addition of paraffin to the magnetic coating material is 0.1 to 20wt%.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8872378A JPS5517811A (en) | 1978-07-19 | 1978-07-19 | Magnetic recording media |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8872378A JPS5517811A (en) | 1978-07-19 | 1978-07-19 | Magnetic recording media |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5517811A true JPS5517811A (en) | 1980-02-07 |
JPS627607B2 JPS627607B2 (en) | 1987-02-18 |
Family
ID=13950817
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8872378A Granted JPS5517811A (en) | 1978-07-19 | 1978-07-19 | Magnetic recording media |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5517811A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5866637A (en) * | 1996-07-23 | 1999-02-02 | Ncr Corporation | Magnetic thermal transfer ribbon with non-metallic magnets |
-
1978
- 1978-07-19 JP JP8872378A patent/JPS5517811A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5866637A (en) * | 1996-07-23 | 1999-02-02 | Ncr Corporation | Magnetic thermal transfer ribbon with non-metallic magnets |
Also Published As
Publication number | Publication date |
---|---|
JPS627607B2 (en) | 1987-02-18 |
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