SUBSTRATE FOR MAGNETIC RECORDING MEDIUM, METHOD FOR MANUFACTURING SUCH SUBSTRATE AND MAGNETIC RECORDING MEDIUM

摘要

Provided is a substrate for a magnetic recording medium, which has high chemical durability and improved adhesiveness with a magnetic layer. A coating layer (3) is formed on a region of 90% or more of the entire surface of a resin substrate (2). The coating layer (3) is formed on an upper surface (2a), a lower surface (2b), an inner circumference end surface (2c) and an outer circumference end surface (2d) of the substrate (2). Since the substrate (2) is coated with the coating layer (3), a gas is prevented from being discharged from the substrate (2) and the substrate (2) can be prevented from absorbing moisture. Furthermore, adhesiveness between the magnetic layer and the substrate can be improved by forming the magnetic layer on the coating layer (3).