Verfahren zur Verbesserung eines magnetischen Aufzeichnungsträgers und magnetischer Aufzeichnungsträger

摘要

A method of improving a magnetic recording medium in the physical and electromagnetic properties is disclosed. The method is comprised, in combination, of the steps of: making a support of one selected from the group consisting of polyehtylene naphthalate and polyehtylene terephthalate; providing on the support, a magnetic recording layer comprising a ferromagnetic metal powder, a carbon black, a lubricant, an abrasive and a binder; providing on the opposite side of the magnetic layer, a back coating layer comprising a carbon balck, non-magnetic particles and a binder; wherein the Young's modulus of said magnetic recording madium in a traveling direction is not less than 1100 kg/mm<2>; and the improved magnetic recording medium.