| 摘要 |
PURPOSE:To improve the flatness and environmental stability of the titled medium by flattening the first film obtained by providing a ferromagnetic metallic thin film on a polymeric film and the second film obtained by furnishing a thin film on a polymeric film, and sticking both films on each other. CONSTITUTION:The first film obtained by providing a ferromagnetic metallic thin film 7 on a polymeric film 5 and the second film obtained by furnishing a thin film 8 on a polymeric film 6 are flattened, and both films are stuck on each other. The film of polypropylene, polycarbonate, polyether sulfone, or a combination of the resins as well as a polyethylene terephthalate film can be used as the polymeric film. Since a flat magnetic recording medium without any dimensional change and having high mechanical strength can be obtained in this way, recording and producing of short-wave record can be performed in wide environment with excellent S/N.
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