JPS5497403A - Production of magnetic recording media - Google Patents
Production of magnetic recording mediaInfo
- Publication number
- JPS5497403A JPS5497403A JP330778A JP330778A JPS5497403A JP S5497403 A JPS5497403 A JP S5497403A JP 330778 A JP330778 A JP 330778A JP 330778 A JP330778 A JP 330778A JP S5497403 A JPS5497403 A JP S5497403A
- Authority
- JP
- Japan
- Prior art keywords
- coated
- tape
- production
- magnetic recording
- recording media
- 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 prevent the occurrence of spacing between tape/head and prevent the decrease in video sensitivity and S/N by discretely providing lubricants on magnetic layer surface.
CONSTITUTION: A magnetic layer B is coated on a base C and after calender processing in succession or after the base is slit to tape or sheet form, the solution of a suitable lubricant A is discretely coated to a thickness 1μ or under, preferably 0.1μ or under. The measurement method thereof is converted by 100d/λ(dB). The degree of discreteness is such that the ratio S2/S1 of a surface area S2 on which the lubricant is coated with respect to the coating surface area S1 of the magnetic tape is made less than 0.8, preferably less than 0.5.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP330778A JPS5497403A (en) | 1978-01-18 | 1978-01-18 | Production of magnetic recording media |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP330778A JPS5497403A (en) | 1978-01-18 | 1978-01-18 | Production of magnetic recording media |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5497403A true JPS5497403A (en) | 1979-08-01 |
Family
ID=11553691
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP330778A Pending JPS5497403A (en) | 1978-01-18 | 1978-01-18 | Production of magnetic recording media |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5497403A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4367264A (en) * | 1980-08-30 | 1983-01-04 | Tdk Electronics Co., Ltd. | Magnetic recording medium |
US4396659A (en) * | 1979-01-16 | 1983-08-02 | Tdk Electronics Co., Ltd. | Magnetic recording medium |
JPS63241720A (en) * | 1987-03-30 | 1988-10-07 | Fuji Photo Film Co Ltd | Magnetic recording medium |
-
1978
- 1978-01-18 JP JP330778A patent/JPS5497403A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4396659A (en) * | 1979-01-16 | 1983-08-02 | Tdk Electronics Co., Ltd. | Magnetic recording medium |
US4367264A (en) * | 1980-08-30 | 1983-01-04 | Tdk Electronics Co., Ltd. | Magnetic recording medium |
JPS63241720A (en) * | 1987-03-30 | 1988-10-07 | Fuji Photo Film Co Ltd | Magnetic recording medium |
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