JPS5597029A - Magnetic tape - Google Patents
Magnetic tapeInfo
- Publication number
- JPS5597029A JPS5597029A JP129579A JP129579A JPS5597029A JP S5597029 A JPS5597029 A JP S5597029A JP 129579 A JP129579 A JP 129579A JP 129579 A JP129579 A JP 129579A JP S5597029 A JPS5597029 A JP S5597029A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic tape
- coercive force
- featuring
- erasion
- ferromagnetic powder
- 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
Abstract
PURPOSE: To secure the erasion effect of the desired standard by coating the ferromagnetic powder featuring the coercive force of less than the specific level onto the rear surface of the magnetic tape featuring the high coercive force.
CONSTITUTION: The ferromagnetic powder featuring the coercive force of 250Oe or less is coated as back-coat 3 onto the rear surface of base component 1 of the magnetic tape featuring the coercive force of over 700Oe at its main magnetic layer 2. With such magnetic tape, the erasion standard of about +55dB or more can be obtained via the erasion current of about 150W200mA which is allowable in the practical use. The ferromagnetic powder used as back-coat 3 uses γ-Fe2O3, ferrite or the like.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP129579A JPS5597029A (en) | 1979-01-12 | 1979-01-12 | Magnetic tape |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP129579A JPS5597029A (en) | 1979-01-12 | 1979-01-12 | Magnetic tape |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5597029A true JPS5597029A (en) | 1980-07-23 |
Family
ID=11497466
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP129579A Pending JPS5597029A (en) | 1979-01-12 | 1979-01-12 | Magnetic tape |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5597029A (en) |
-
1979
- 1979-01-12 JP JP129579A patent/JPS5597029A/en active Pending
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