发明名称 METHOD FOR MANUFACTURING MAGNETIC RECORDING MEDIUM
摘要 PROBLEM TO BE SOLVED: To manufacture a magnetic recording medium having an excellent- smoothness magnetic layer and showing high electromagnetic conversion characteristic suitable for high-density recording. SOLUTION: This method for manufacturing the magnetic recording medium comprises a coating step to apply a coating material 3, which is used for forming a pseudo lower layer and contains the solvent having 150 deg.C or higher boiling point, and a magnetic coating material 4, which is obtained by dispersing ferromagnetic powder in a binder, onto a nonmagnetic support 1 travelling to the prescribed direction in this order, the first smoothing step to push/smooth the surface of the applied coating material 4 so that the thickness of the coating material 4 is made to be t and the second smoothing step to vaporize the applied coating material 3 and push/smooth the surface of the applied coating material 4 in such a state that the support 1 is contacted with the coating material 4 so that the thickness of the coating material 4 layer is made to be t'. The compressibility shown by 100×(t-t')/t is made to be 50% or higher to 60% or lower.
申请公布号 JP2001291232(A) 申请公布日期 2001.10.19
申请号 JP20000106723 申请日期 2000.04.04
申请人 SONY CORP 发明人 HISAMICHI JUNICHIRO;YUKI TOSHIMI
分类号 B05D5/12;G11B5/84;G11B5/848;(IPC1-7):G11B5/848 主分类号 B05D5/12
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