JPS5625235A - Manufacture of magnetic recording medium - Google Patents
Manufacture of magnetic recording mediumInfo
- Publication number
- JPS5625235A JPS5625235A JP10113379A JP10113379A JPS5625235A JP S5625235 A JPS5625235 A JP S5625235A JP 10113379 A JP10113379 A JP 10113379A JP 10113379 A JP10113379 A JP 10113379A JP S5625235 A JPS5625235 A JP S5625235A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- binder
- radiant rays
- layer
- compound
- 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
- Manufacturing Of Magnetic Record Carriers (AREA)
Abstract
PURPOSE: To improve resistance to wear by mirror-finishing a magnetic layer by flattening the surface of a magnetic compound layer formed on a base material after partially setting a binder by preliminarily irradiating the magnetic compound layer with radiant rays and then by irradiating the surface with radiant rays finally.
CONSTITUTION: A base material such as a film is coated with magnetic coating that contains magnetic powder and a binder obtained by blending thermoplastic resin with a compound generating crossing bonds through radiation irradiation, e.g. an acrylic compound with not less than two double bonds. A magnetic layer, after being formed by drying, is preliminarily irradiated with radiant rays such as electron beams under less than about 1Mrad to set the binder partially. Next, the surface of the magnetic compound layer is flattened by calendering, etc., and then irradiated finally with radiant rays under about 1W10Mrad to set the binder component sufficiently. Consequently, a tape with the magnetic layer of desired hardness and wear resistance can be obtained.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10113379A JPS5625235A (en) | 1979-08-08 | 1979-08-08 | Manufacture of magnetic recording medium |
DE3029819A DE3029819C2 (en) | 1979-08-06 | 1980-08-06 | MAGNETIC RECORDING MEDIUM |
NL8004483A NL8004483A (en) | 1979-08-06 | 1980-08-06 | MAGNETIC REGISTRATION MATERIAL. |
GB8025720A GB2055877B (en) | 1979-08-06 | 1980-08-06 | Magnetic recording media |
FR8017398A FR2463477B1 (en) | 1979-08-06 | 1980-08-06 | MAGNETIC RECORDING ELEMENT |
US06/442,845 US4443490A (en) | 1979-08-06 | 1982-11-18 | Magnetic recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10113379A JPS5625235A (en) | 1979-08-08 | 1979-08-08 | Manufacture of magnetic recording medium |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5625235A true JPS5625235A (en) | 1981-03-11 |
JPS6214887B2 JPS6214887B2 (en) | 1987-04-04 |
Family
ID=14292573
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10113379A Granted JPS5625235A (en) | 1979-08-06 | 1979-08-08 | Manufacture of magnetic recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5625235A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58122624A (en) * | 1982-01-14 | 1983-07-21 | Fujitsu Ltd | Manufacture of magnetic recording medium |
JPS61175928A (en) * | 1985-01-29 | 1986-08-07 | Fuji Photo Film Co Ltd | Production of magnetic recording medium |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5077433A (en) * | 1973-11-13 | 1975-06-24 | ||
JPS5481804A (en) * | 1977-12-13 | 1979-06-29 | Fujitsu Ltd | Production of magnetic disc |
-
1979
- 1979-08-08 JP JP10113379A patent/JPS5625235A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5077433A (en) * | 1973-11-13 | 1975-06-24 | ||
JPS5481804A (en) * | 1977-12-13 | 1979-06-29 | Fujitsu Ltd | Production of magnetic disc |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58122624A (en) * | 1982-01-14 | 1983-07-21 | Fujitsu Ltd | Manufacture of magnetic recording medium |
JPH0258688B2 (en) * | 1982-01-14 | 1990-12-10 | Fujitsu Ltd | |
JPS61175928A (en) * | 1985-01-29 | 1986-08-07 | Fuji Photo Film Co Ltd | Production of magnetic recording medium |
Also Published As
Publication number | Publication date |
---|---|
JPS6214887B2 (en) | 1987-04-04 |
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