JPS55142418A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS55142418A JPS55142418A JP5042079A JP5042079A JPS55142418A JP S55142418 A JPS55142418 A JP S55142418A JP 5042079 A JP5042079 A JP 5042079A JP 5042079 A JP5042079 A JP 5042079A JP S55142418 A JPS55142418 A JP S55142418A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- magnetic
- protecting layer
- magnetic recording
- polyester
- 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 the vinyl chloride-vinylpropionic acid copolymer, polyester resin 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 polyester, the protecting layer paint mixing a given amount of vinyl chloride-vinylpropionic acid copolymer, polyester resin such as branched polyester containing hydroxyl radical and plyisocyanate of low molecular weight is coated, and the protecting layer 3 is formed with drying. The magnetic layer 4 is formed on the protecting layer 4 to constitute the copying magnetic sheet, the magnetic substance layer 4 is laminated on the board 5 such as polyvinyl chloride so that it is contact with the board 5, and after pressing, the film 1 is peeled. Thus, the strength of the protecting layer 3 is increased, the elasticity is at suitable degree, 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 |
---|---|---|---|
JP5042079A JPS55142418A (en) | 1979-04-23 | 1979-04-23 | Magnetic recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5042079A JPS55142418A (en) | 1979-04-23 | 1979-04-23 | Magnetic recording medium |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55142418A true JPS55142418A (en) | 1980-11-07 |
Family
ID=12858365
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5042079A Pending JPS55142418A (en) | 1979-04-23 | 1979-04-23 | Magnetic recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55142418A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0713202U (en) * | 1993-08-06 | 1995-03-07 | 宮田自動機販売株式会社 | Footwear |
-
1979
- 1979-04-23 JP JP5042079A patent/JPS55142418A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0713202U (en) * | 1993-08-06 | 1995-03-07 | 宮田自動機販売株式会社 | Footwear |
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