Magnetischer Aufzeichnungsträger und Verfahren zu seiner Herstellung.

摘要

A novel magnetic recording medium is disclosed which comprises a non-magnetic support having thereon at least three magnetic layers each layer of which containing a ferromagnetic powder dispersed in a binder, wherein the outermost magnetic layer arranged farthest from the support has a dry thickness of 1 mu m or less, and the at least three magnetic layers each exhibit coercive force Hc (Oe) satisfying the following relationships: $wherein\; H1\; represents\; Hc\; of\; the\; outermost\; magnetic\; layer;\; Hn\; represents\; Hc\; of\; the\; magnetic\; layer\; which\; is\; the\; n-th\; layer\; from\; the\; outermost\; magnetic\; layer\; and\; arranged\; between\; the\; outermost\; layer\; and\; the\; non-magnetic\; support;\; and\; Dn\; represents\; the\; distance\; (\; mu\; m)\; from\; the\; top\; surface\; of\; the\; outermost\; magnetic\; layer\; to\; the\; top\; surface\; of\; the\; n-th\; layer.\; A\; novel\; process\; for\; the\; preparation\; of\; the\; magnetic\; recording\; medium\; is\; also\; disclosed.$