METHOD OF TEXTURING SUBSTRATE FOR MAGNETIC RECORDING MEDIUM, MAGNETIC RECORDING MEDIUM MANUFACTURED BY USING THE METHOD, AND DEVICE OF TEXTURING SUBSTRATE FOR MAGNETIC RECORDING MEDIUM

摘要

PROBLEM TO BE SOLVED: To provide a texturing method having constant texturing accuracy in a recording surface without unevenness in a radial direction, to provide a recording medium manufactured by being textured by the texturing method, and to provide an abrasive slurry discharging device used for the texturing.

SOLUTION: In the method of texturing a substrate 1 by which the substrate 1 is textured while being rotated and discharging the abrasive slurry 6 to the substrate 1, a plurality of discharging nozzles 4 discharging the abrasive slurry 6 are disposed at a plurality of positions along the radial direction from the center of the substrate 1. The abrasive slurry 6 is discharged from the discharging nozzles 4 to the substrate 1 and texturing is performed by pressurizing the abrasive slurry 6 to the substrate 1. Thereby, the uneven amount of the abrasive slurry 6 in the radial direction of the substrate is hardly discharged and the discharged amount of the abrasive slurry 6 is made uniform in the radial direction.

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