发明名称 PRODUCTION OF MAGNETIC RECORDING MEDIUM
摘要 PURPOSE:To improve both magnetic characteristics and adhesion efficiency, by performing the after-vapor deposition within a small range of incident angles after carrying out the pre-vapor deposition to a substrate with a high incident angle so that >=50% deposited area is obtained to the total area. CONSTITUTION:A base material 4 is shifted through guide rolls 2a and 2c along the surface of a cylindrical rotary scan 10 the inside of which is cooled when necessary. Then a ferromagnetic material is eaporated by the vacuum vapor deposition, etc. through a vapor deposition source 9, and the current is deposited to an effective surface within a projection angle between the roll 2c of the traveling material 4 and a mask 6. The pre-vapor deposition section covers >=50% deposition effective area within a comparatively high incident angle range for a linear substrate traveling part between the position where the substrate 4 is first separated from the roll 2c and the position where the substrate 4 first touches the can 10. Then the after-vapor deposition is carried out along the surface of the can 10 and up to the position of the minimum incident angle that is prescribed by the mask 6.
申请公布号 JPS58211328(A) 申请公布日期 1983.12.08
申请号 JP19820095465 申请日期 1982.06.03
申请人 DAINIPPON INSATSU KK 发明人 WADA TAKASHI
分类号 H01F41/20;G11B5/85 主分类号 H01F41/20
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