JPS6453330A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS6453330A JPS6453330A JP21100387A JP21100387A JPS6453330A JP S6453330 A JPS6453330 A JP S6453330A JP 21100387 A JP21100387 A JP 21100387A JP 21100387 A JP21100387 A JP 21100387A JP S6453330 A JPS6453330 A JP S6453330A
- Authority
- JP
- Japan
- Prior art keywords
- base body
- young
- modulus
- thermal deterioration
- recording medium
- 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
- 230000005291 magnetic effect Effects 0.000 title abstract 2
- 230000006866 deterioration Effects 0.000 abstract 5
- 230000005294 ferromagnetic effect Effects 0.000 abstract 3
- 238000004519 manufacturing process Methods 0.000 abstract 2
- 238000007740 vapor deposition Methods 0.000 abstract 2
- 230000001419 dependent effect Effects 0.000 abstract 1
- 229920002457 flexible plastic Polymers 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
Landscapes
- Magnetic Record Carriers (AREA)
Abstract
PURPOSE:To obviate the generation of thermal deterioration at the time of forming a thin ferromagnetic metallic film by heating, more particularly vapor deposition during production by specifying the ratio of the Young's modulus of a base body at 90 deg.C and the Young's modulus of the base body at room temp. CONSTITUTION:The ratio of the Young's modulus E90 of the base body at 90 deg.C of a magnetic recording medium constituted by providing the thin ferromagnetic metallic film on the base body (for example, flexible plastic base body) and the Young's modulus ERT of the base body at room temp. satisfies the equation I. Whether the thermal deterioration is generated at the time of forming the thin ferromagnetic metallic film by the vapor deposition, etc., or not is largely dependent upon the ratio of the Young's modulus of the base body film particularly in the heated state and the Young's modulus at room temp. Namely, the trouble by the thermal deterioration is not generated if E90/ERT is 1.0>=E90/ERT>=0.6. The thermal deterioration is not generated at all if 1.0>=E90/RRT>=0.65. The thermal deterioration such as wrinkling and holing is thereby not generated at all in the stage when the recording medium receives heat in the production process. The recording medium is thus stably produced at a high yield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21100387A JPS6453330A (en) | 1987-08-25 | 1987-08-25 | Magnetic recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21100387A JPS6453330A (en) | 1987-08-25 | 1987-08-25 | Magnetic recording medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6453330A true JPS6453330A (en) | 1989-03-01 |
Family
ID=16598713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21100387A Pending JPS6453330A (en) | 1987-08-25 | 1987-08-25 | Magnetic recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6453330A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996000439A1 (en) * | 1994-06-23 | 1996-01-04 | Toray Industries, Inc. | Magnetic recording medium |
-
1987
- 1987-08-25 JP JP21100387A patent/JPS6453330A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996000439A1 (en) * | 1994-06-23 | 1996-01-04 | Toray Industries, Inc. | Magnetic recording medium |
| US5686166A (en) * | 1994-06-23 | 1997-11-11 | Toray Industries, Inc. | Magnetic recording medium having specified base film surface characteristics |
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