| 摘要 |
PURPOSE:To improve remarkably the traveling performance of a magnetic recording medium by exposing the surface of the thin magnetic metallic film on the nonmagnetic support to electric discharge and forming a lubricant layer on the exposed surface by vapor deposition. CONSTITUTION:The thin magnetic metallic film 2 of a ferromagnetic metallic material such as Co, Co-Ni or Co-Cr is formed on the nonmagnetic support 1 of polyethylene terephthalate, polyimide or the like by vapor deposition such as evaporation or sputtering, and the surface of the film 2 is exposed to electric discharge. A lubricant layer 3 of about 10-100Angstrom thickness is formed on the exposed surface of the film 2 by vapor deposition. Thus, a magnetic recording medium having a lubricating effect for a very long period is obtd. |
