| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic disk, wherein ruggedness of the surface of a lubricant layer is relaxed. SOLUTION: A method for manufacturing the magnetic disk includes: a step (A) for providing a magnetic disk substrate, having at least a non-magnetic substrate and a magnetic layer; a step (B) for applying a lubricant solution containing a perfluoropolyether, based compound on the surface on the magnetic layer side of the magnetic disk substrate to dispose the lubricant layer; and a step (C) for subjecting the magnetic disk substrate on which the lubricant layer is subjected to a high-temperature high-humidity treatment, in the conditions of≥50°C temperature and≥60% relative humidity so as to planarize the surface of the lubricant layer. COPYRIGHT: (C)2010,JPO&INPIT
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