MANUFACTURE OF MAGNETIC RECORDING MEDIUM

摘要

PURPOSE:To manufacture a recording medium having excellent running performance and wear-resistance by applying an electric field in the broadwise direction of a ferromagnetic metallic thin film in coating a lubricant solution on the ferromagnetic metallic thin film provided to a support. CONSTITUTION:A magnetic recording medium 1 made of a support having the ferromagnetic metallic thin film layer is carried in the direction of the arrow. The ferromagnetic metallic thin film layer on the recording medium 1 is carried while being in contact with an applicator roll 2. A metal-made touch roll 3 is brought into contact on the rear side of the magnetic recording medium 1, the roll 3 being in pairs with the applicator roll 2 and pressing the magnetic recording medium 1 onto the applicator roll 2. A power supply 4 is connected to the applicator roll 2 and the touch roll 3 so as to generate an electric field in the broadwise direction of the ferromagnetic metallic thin film of the magnetic recording medium. The said applicator roll 2 is immersed partly in the lubricant solution 5 in a case 8.