| 摘要 |
PURPOSE:To prevent the slipping-off of polishing particles from a polishing coated film, maintaining the high grinding faculty, by covering the surface of the polishing particle projecting from the surface of the polishing coated film by binder and increasing the contact area between the polishing particle and the binder. CONSTITUTION:When the tape sliding surface of a magnetic head is polished, a polishing tape is traveled at a constant speed, and a coated layer 2 is slided onto the magnetic head. At this time, the tape sliding surface of the magnetic head is polished smoothly by the hard polishing agent 4 dispersed in the coated layer 2. In order to increase the grinding faculty, the polishing particle 4 having the particle size larger than the thickness of the coated layer 2 is used as polishing agent. Therefore, though the upper part of the polishing particle 4 projects from the surface of the coated layer 2, this part is covered with a thin film 5 made of binding agent, and the contact area between the polishing particle and the binding agent is increased. Therefore, the polishing particle is firmly bonded with the coated layer 2, and hardly slipped off from the coated layer 2 even in the polishing of the magnetic head. |
