JPS647323A - Production of magnetic recording medium - Google Patents
Production of magnetic recording mediumInfo
- Publication number
- JPS647323A JPS647323A JP26426187A JP26426187A JPS647323A JP S647323 A JPS647323 A JP S647323A JP 26426187 A JP26426187 A JP 26426187A JP 26426187 A JP26426187 A JP 26426187A JP S647323 A JPS647323 A JP S647323A
- Authority
- JP
- Japan
- Prior art keywords
- base
- layer
- coated
- magnetic
- production
- 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
- Manufacturing Of Magnetic Record Carriers (AREA)
Abstract
PURPOSE:To improve a electromagnetic conversion characteristics and to decrease drop-outs by forming a magnetic layer on a base and forming a back coating layer on the opposite surface of the base, then coiling the base. CONSTITUTION:The film-like base 1 let off from a supply roll 10 is coated with a magnetic coating compd. 2 by a roll coater 11 and is then introduced into a dryer 12 where the base is dried by hot air 14 from nozzles 13. This film 1 with the magnetic layer is calendered by rolls 15 and thereafter the coating compd. 16 for the BC layer is coated on the base 1 by rolls 25. The coated base is introduced into a dryer 21 where the base is dried by hot air 23 from nozzles 22 to form the BC layer. The base 1 is then coiled by a roll 24. The base is thereafter slit to a prescribed width and a magnetic tape is thus obtd.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP26426187A JPS647323A (en) | 1987-02-06 | 1987-10-20 | Production of magnetic recording medium |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2565387 | 1987-02-06 | ||
JP26426187A JPS647323A (en) | 1987-02-06 | 1987-10-20 | Production of magnetic recording medium |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS647323A true JPS647323A (en) | 1989-01-11 |
Family
ID=26363296
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP26426187A Pending JPS647323A (en) | 1987-02-06 | 1987-10-20 | Production of magnetic recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS647323A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5856226A (en) * | 1981-09-28 | 1983-04-02 | Fuji Photo Film Co Ltd | Production of magnetic recording medium |
JPS60179939A (en) * | 1984-02-24 | 1985-09-13 | Matsushita Electric Ind Co Ltd | Production of magnetic recording medium |
-
1987
- 1987-10-20 JP JP26426187A patent/JPS647323A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5856226A (en) * | 1981-09-28 | 1983-04-02 | Fuji Photo Film Co Ltd | Production of magnetic recording medium |
JPS60179939A (en) * | 1984-02-24 | 1985-09-13 | Matsushita Electric Ind Co Ltd | Production of magnetic recording medium |
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