MAGNETIC RECORDING MEDIUM

摘要

PURPOSE:To enhance lubricity to maintain good wear resistance for a long period of time and to prevent damage on a medium surface by forming a protective lubricating film consisting of fluorocarbon on the surface and specifying the constitution ratio of the fluorocarbon compd. to CF2+CF3/CF>=1. CONSTITUTION:The fluorocarbon to be formed as a film on a magnetic film 4 of a magnetic recording medium deposited with a plating film 2, an underlying film 3 and the magnetic film 4 in this order on a substrate 1 is formed as the protective lubricating film 6 so as to have the compsn. ratio: CF2+CF3/CF>=1. The protective lubricating film 6 consisting of the fluorocarbon is preferably formed as thin as possible within the range where the strength of the film surface sufficient to protect the magnetic film 4 and the slipperiness at the time of sliding with a magnetic head are assured. The magnetic recording medium provided with the protective lubricating film having excellent protective and lubricating performances is thereby obtd.