JPS55142415A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS55142415A JPS55142415A JP5041779A JP5041779A JPS55142415A JP S55142415 A JPS55142415 A JP S55142415A JP 5041779 A JP5041779 A JP 5041779A JP 5041779 A JP5041779 A JP 5041779A JP S55142415 A JPS55142415 A JP S55142415A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- magnetic
- protecting layer
- magnetic recording
- nitril
- 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)
Abstract
PURPOSE: To improve the durability of magnetic recording media by providing the protecting layer consisting of cellulosic resin, nitril-butadiene rubber and polyisocyanate of low molecular weight, on the surface of magnetic layer.
CONSTITUTION: On the mold release layer 2 formed on the film 1 such as plyester, the protecting layer paint mixing a certain amount of cellulosic resin such as nitrocellulose, nitril-butadiene rubber and polyisocyanate of low molecular weight, is coated to form the protecting layer 3 with drying. The magnetic substance layer 4 is formed on the protecting layer 3 to constitute the copying magnetic sheet, it is laminated on the board 5 such as polyvinyl chloride so that the magnetic layer 4 is in contact with the board 5, and after pressing, the film 1 is peeled. Thus, suitable degree of elasticity is given to the protecting layer 3 and the magnetic recording media durable for a long time can be obtained.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5041779A JPS55142415A (en) | 1979-04-23 | 1979-04-23 | Magnetic recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5041779A JPS55142415A (en) | 1979-04-23 | 1979-04-23 | Magnetic recording medium |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55142415A true JPS55142415A (en) | 1980-11-07 |
Family
ID=12858278
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5041779A Pending JPS55142415A (en) | 1979-04-23 | 1979-04-23 | Magnetic recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55142415A (en) |
-
1979
- 1979-04-23 JP JP5041779A patent/JPS55142415A/en active Pending
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