| 摘要 |
PURPOSE:To prevent fiber from fraying by reinforcing edge parts, by melt- sticking a plastic-made sheet forming an outside surface and nonwoven fabric forming an inside surface at opening parts. CONSTITUTION:Nonwoven fabric (interliner) 2 is superposed upon a plastic-made sheet 1 to form a jacket. The hole edge 9 for a disk rotary shaft, hole edge 9 for head or pad movement, outside-edge circumferential part 10, and outside-edge inside part 11 of the jacket are melt-stuck by being heated. Then, a disk 5 rotates while sandwiched between the interlinears 2 inside of the jacket. |
