MAGNETISCHE AUFZEICHNUNGSTRAEGER UND VERFAHREN ZU IHRER HERSTELLUNG

摘要

In a magnetic recording medium comprising a substrate and a magnetic layer thereon, the magnetic layer is formed by coating a composition of a binder, preferably radiation-curable binder and a needle magnetic material, passing the coating through a magnetic field to forcedly re-orient the magnetic particles to form pores having an average pore area of 6x10-5 to 7x10-1 mu m2, and curing the coating, thereby minimizing output fluctuation and improving durability. Preferably lubricant is present in the pores.