JPS5665335A - Medium for magnetic sheet device or the like - Google Patents
Medium for magnetic sheet device or the likeInfo
- Publication number
- JPS5665335A JPS5665335A JP14044779A JP14044779A JPS5665335A JP S5665335 A JPS5665335 A JP S5665335A JP 14044779 A JP14044779 A JP 14044779A JP 14044779 A JP14044779 A JP 14044779A JP S5665335 A JPS5665335 A JP S5665335A
- Authority
- JP
- Japan
- Prior art keywords
- clay
- smoothness
- magnetic
- layer
- magnetic layer
- 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
- Magnetic Record Carriers (AREA)
Abstract
PURPOSE: To improve printing and magnetic characteristics by finishing a magnetic layer surface to a specific smoothness by clay-coating both sides of paper reinforced by a specific amount of fibers and then by forming a print surface on one side and a magnetic layer on the other after smoothing clay surfaces.
CONSTITUTION: With paper, a 0.2W20% filler for size stabilization, such as glass fiber and synthetic fiber, is mixed and both the surfaces of the obtained base are clay-coated and calendered to form a composite material 1. One surface of clay layer 1a is used as a print surface, and on the other surface 1a, magnetic coating layer 2 is formed. Next, magnetic layer 2 is finished by a heating pressure roller, etc., to a surface smoothness of 200W10,000sec (not a time and angle, but representation of smoothness) to obtain the total thickness of 50W700μ. Thus, the nerve of the sheet is obtained to realize clear print and excellent characteristics having neither noises nor dropouts.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14044779A JPS5665335A (en) | 1979-11-01 | 1979-11-01 | Medium for magnetic sheet device or the like |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14044779A JPS5665335A (en) | 1979-11-01 | 1979-11-01 | Medium for magnetic sheet device or the like |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5665335A true JPS5665335A (en) | 1981-06-03 |
JPH0315277B2 JPH0315277B2 (en) | 1991-02-28 |
Family
ID=15268832
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14044779A Granted JPS5665335A (en) | 1979-11-01 | 1979-11-01 | Medium for magnetic sheet device or the like |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5665335A (en) |
-
1979
- 1979-11-01 JP JP14044779A patent/JPS5665335A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPH0315277B2 (en) | 1991-02-28 |
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