| 摘要 |
PURPOSE:To improve recording and reproducing characteristics, corrosion resistance and durability by laminating a magnetic material layer on a substrate, then laminating an org. protective layer contg. the monomolecular film of a fatty acid having a hydrophilic part and hydrophobic part in the molecular part of the cumulative film thereof in said layer and further subjecting the resulted laminate to a heat treatment and/or vacuum treatment. CONSTITUTION:The ferromagnetic material layer 2 is laminated on the substrate 1 and the intermediate layer 3 to play the role of a subsurface treatment is provided thereon, then the org. protective layer contg. the monomolecular film of the fatty acid having the hydrophilic part and hydrophilic part in the molecule or the cumulative film thereof is laminated thereon. The resulted laminate is subjected to the heat treatment and/or vacuum treatment. The adhesiveness between the intermediate layer 3 and the protective layer 4 is improved and the protective layer 4 itself is stabilized by subjecting the thin magnetic film formed with such protective layer to the heat treatment and/or vacuum treatment. A thin film deposition type magnetic recording medium having the particularly excellent durability and runnability is thus obtd. without the substantial deterioration of the electromagnetic conversion characteristic.
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