| 摘要 |
PURPOSE:To obtain a magnetic recording medium possible for reproduction with a ring head, with high speed coating and higher density than conventional media, by applying a magnetic paint of electron ray curing performance on a nonmagnetic substance support and applying a vertical magnetic field with an orientation magnet provided above or below the coated film. CONSTITUTION:The electron ray curing paint including ferromagnetic fine powder is applied to the support 2 made of polyester or the like, and a vertical magnetic field is applied with magnets 3, 3 arranged opposingly above or below the coated film 1 while the support is made to run in the direction of running as shown in the arrow and drying is progressed by blowing hot air at about 100 deg.C from a fan 6, the magnetic powder is oriented vertically, electron rays are irradiated from an electron-ray irradiating device 5 immediately after the orientation to obtain the vertical recording medium by curing the paint quickly. A magnetic shield plate 4 can be provided between the magnets 3, 3 and the irradiating device 5. Thus, the recording density is four times as high as the conventional media and the reproduction is done by the ring head. |
