abstract |
The invention relates to a method for polishing the ground surfaces of magnetic storage disks, consisting of a disk-shaped rigid support material with magnetic layers applied thereon on both sides, made of magnetic material finely divided in an organic polymer and conventional additives, by pressing felt rings or disks against the moving and on the Magnetic storage plate provided with an aqueous butyl acetate and optionally containing 1,4-butanediol emulsion. |