JPS55160329A - Magnetic disk coating - Google Patents
Magnetic disk coatingInfo
- Publication number
- JPS55160329A JPS55160329A JP4069679A JP4069679A JPS55160329A JP S55160329 A JPS55160329 A JP S55160329A JP 4069679 A JP4069679 A JP 4069679A JP 4069679 A JP4069679 A JP 4069679A JP S55160329 A JPS55160329 A JP S55160329A
- Authority
- JP
- Japan
- Prior art keywords
- coating
- lubricant
- magnetic disk
- magnetic
- volume
- 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
- Magnetic Record Carriers (AREA)
- Paints Or Removers (AREA)
Abstract
PURPOSE: To improve the durability of a coating on a magnetic disk applied with a lubricant on its surface, by making it easy for the coating surface to fit the lubricant by specifying the range of the proportion by volume of a powder component in the magnetic coating.
CONSTITUTION: As for a magnetic disk applied with a lubricant on its surface, the proportion by volume of a powder component such as γFe2O3 and αFe2O3 in the magnetic coating is specified between 25W40% so as to improve the holding characteristics of the coating surface to the lubricant which does not get to fit the magnetic coating chemically. Namely, when the volume rate of the powder component is fixed at between 25W40%, it is made easier for a liquid substance for the lubricant to intrude along the boundary between the powder and resin, so that the durability of the coating will be improved.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4069679A JPS55160329A (en) | 1979-04-04 | 1979-04-04 | Magnetic disk coating |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4069679A JPS55160329A (en) | 1979-04-04 | 1979-04-04 | Magnetic disk coating |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55160329A true JPS55160329A (en) | 1980-12-13 |
Family
ID=12587712
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4069679A Pending JPS55160329A (en) | 1979-04-04 | 1979-04-04 | Magnetic disk coating |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55160329A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5990234A (en) * | 1982-11-15 | 1984-05-24 | Hitachi Ltd | Magnetic disk |
JPS6482328A (en) * | 1987-09-24 | 1989-03-28 | Hitachi Maxell | Magnetic disk |
-
1979
- 1979-04-04 JP JP4069679A patent/JPS55160329A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5990234A (en) * | 1982-11-15 | 1984-05-24 | Hitachi Ltd | Magnetic disk |
JPH056736B2 (en) * | 1982-11-15 | 1993-01-27 | Hitachi Ltd | |
JPS6482328A (en) * | 1987-09-24 | 1989-03-28 | Hitachi Maxell | Magnetic disk |
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