MANUFACTURE OF MAGNETIC RECORDING MEDIUM

PURPOSE: To provide a process for producing a magnetic recording medium of a metallic thin layer type which does not exhibit the defect of the loss of the residual induction to be induced at the time of reproduction while the deviation from the desirable magnetic direction of the magnetic recording medium produced by the conventional method brings about such loss and more particularly the magnetic recording medium of the metallic thin film type of which the projection of the desirable magnetic direction with respect to a tape surface is aligned to an average recording direction. CONSTITUTION: The magnetic recording medium substantially consisting of a polymer band-like substrate guided on a cylindrical drum and more particularly a roller-shaped cooling drum and the tightly adhesive thin layer of a ferromagnetic material is produced by forming the vapor jet of this ferromagnetic material from an evaporating device 6 to which this material is supplied in a reduced pressure chamber 1 and depositing the vapor jet by evaporation on this substrate. At this time, the vapor jet 7 is brought into collision against the substrate 2 at the angle different from 90 deg.. The revolving shaft of the cylindrical drum 4 for guiding the substrate is inclined with respect to the plane of the evaporating device 6.