JPS5631A - Magnetic recording substance - Google Patents
Magnetic recording substanceInfo
- Publication number
- JPS5631A JPS5631A JP7243279A JP7243279A JPS5631A JP S5631 A JPS5631 A JP S5631A JP 7243279 A JP7243279 A JP 7243279A JP 7243279 A JP7243279 A JP 7243279A JP S5631 A JPS5631 A JP S5631A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- intermediate layer
- paint
- coating
- paper support
- 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
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
Abstract
PURPOSE: To obtain the magnetic recording substance excellent in the stability of output level and high in the reliability, consisting of magnetic layer by using aqueous magnetic paint including ferromagnetic powder via the intermediate layer including thermosetting resin on the paper support.
CONSTITUTION: On the paper support, the intermediate layer is formed by coating the intermediate layer liquid obtained by uniformly scattering particles, preferably 3W5μ or under, of thermosetting resin such as phenol resin and melamine resin into aqueous binder liquid, by about 50W90pts.wt. As the binder liquid, the liquid which is dissolved or dispersed such as starch, polyvinylalchohol in water is preferred and the amount of binder is about 40W10pts.wt. Further, the magnetic layer is formed by coating the aqueous paint containing the ferromagnetic powder such as γ-iron oxide power on the intermediate layer to obtain the objective magnetic recording substance. Thus, since no invasion of magnetic paint to the paper support is caused, the output level can be made stable and the object can be achieved by thinly coating the magnetic substance paint with economy.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7243279A JPS5631A (en) | 1979-06-11 | 1979-06-11 | Magnetic recording substance |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7243279A JPS5631A (en) | 1979-06-11 | 1979-06-11 | Magnetic recording substance |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5631A true JPS5631A (en) | 1981-01-06 |
Family
ID=13489123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7243279A Pending JPS5631A (en) | 1979-06-11 | 1979-06-11 | Magnetic recording substance |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5631A (en) |
-
1979
- 1979-06-11 JP JP7243279A patent/JPS5631A/en active Pending
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