JPS6478425A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS6478425A JPS6478425A JP23568587A JP23568587A JPS6478425A JP S6478425 A JPS6478425 A JP S6478425A JP 23568587 A JP23568587 A JP 23568587A JP 23568587 A JP23568587 A JP 23568587A JP S6478425 A JPS6478425 A JP S6478425A
- Authority
- JP
- Japan
- Prior art keywords
- edge parts
- recording medium
- magnetic recording
- hardness
- heating treatment
- 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
- Compositions Of Macromolecular Compounds (AREA)
- Magnetic Record Carriers (AREA)
Abstract
PURPOSE:To sufficiently increase the mechanical strength of the both side edge parts of a magnetic tape or the like which is formed particularly thin and to effectively suppress the one-side elongation of a magnetic recording medium and the deformation in the edge parts thereof by forming the both side edge parts of the long-sized magnetic recording medium to the hardness higher than the hardness in the entire transverse part except the edge parts. CONSTITUTION:The both side edge parts 3 are formed to the hardness higher than the hardness in the entire transverse part except the edge parts 3. Hardening of the edge parts is executed by a method of slitting the raw film of the magnetic recording medium A formed with a magnetic layer 2 on a plastic substrate 1 by means of an ordinary cutting blade and taking up the cut film, then subjecting the film to a plasma heating treatment, IR heating treatment and laser heating treatment, etc., thereby selectively hardening the edge parts 3. The one-side elongation and the deformation in the edge parts of the magnetic recording medium which is increased in the mechanical strength in the edge parts and is formed particularly thin are effectively prevented at the time of traveling.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23568587A JPS6478425A (en) | 1987-09-19 | 1987-09-19 | Magnetic recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23568587A JPS6478425A (en) | 1987-09-19 | 1987-09-19 | Magnetic recording medium |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6478425A true JPS6478425A (en) | 1989-03-23 |
Family
ID=16989693
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23568587A Pending JPS6478425A (en) | 1987-09-19 | 1987-09-19 | Magnetic recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6478425A (en) |
-
1987
- 1987-09-19 JP JP23568587A patent/JPS6478425A/en active Pending
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