JPS6453342A - Production of magnetic recording medium - Google Patents
Production of magnetic recording mediumInfo
- Publication number
- JPS6453342A JPS6453342A JP21168887A JP21168887A JPS6453342A JP S6453342 A JPS6453342 A JP S6453342A JP 21168887 A JP21168887 A JP 21168887A JP 21168887 A JP21168887 A JP 21168887A JP S6453342 A JPS6453342 A JP S6453342A
- Authority
- JP
- Japan
- Prior art keywords
- coating layer
- web
- magnetic layer
- back coating
- 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.)
- Pending
Links
Landscapes
- Manufacturing Of Magnetic Record Carriers (AREA)
Abstract
PURPOSE:To eliminate the undesirable influence of a back coating layer and over coating layer on a magnetic layer and to prevent drop-out by forming the tin film type magnetic layer on a web, then taking up the web, applying and forming the back coating layer and over coating layer thereon, and coiling and cutting the web. CONSTITUTION:While fins 11 are held heated to a desired temp., a ferromagnetic material 9 set in a crucible 8 for an evaporation source is heated and evaporated by, for example, an electron beam generator 7 and the vapor flow thereof is partly shut off by a mask 10 and is diagonally deposited by evaporation on the substrate 2 moving along a cylindrical can 5. After the thin film type magnetic layer 32 is formed on the substrate in such a manner, the web is once taken up and the back coating layer 31 is applied and formed on the surface opposite to the magnetic layer 32 and the over coating layer is coated and formed on the magnetic layer 32 in the ensuing stage. The web is then coiled and cut. The generation of staining by the fillers, etc., of the back coating layer 31 is thereby prevented and the drop-out of the signal is prevented.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21168887A JPS6453342A (en) | 1987-08-25 | 1987-08-25 | Production of magnetic recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21168887A JPS6453342A (en) | 1987-08-25 | 1987-08-25 | Production of magnetic recording medium |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6453342A true JPS6453342A (en) | 1989-03-01 |
Family
ID=16609939
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21168887A Pending JPS6453342A (en) | 1987-08-25 | 1987-08-25 | Production of magnetic recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6453342A (en) |
-
1987
- 1987-08-25 JP JP21168887A patent/JPS6453342A/en active Pending
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