MANUFACTURE OF OPTICAL RECORDING MEDIUM

摘要

PURPOSE:To manufacture an optical recording medium having a protective layer for sufficiently protecting a reflecting layer and maintaining its reflectivity by controlling the cure shrinkage of the protective layer containing an ultraviolet curing resin within a specific range. CONSTITUTION:An optical recording medium is formed by successively forming a recording layer 2, reflecting layer 3, and protective layer 4 on a substrate 1. The protective layer 4 for protecting the reflecting layer 3 contains an ultraviolet curing resin, and the cure shrinkage X of the layer 4 is controlled to 6%<=X<=10% by adjusting the irradiating amount with ultraviolet rays. The protective layer serves to sufficiently protect the reflecting layer 3 and maintain its reflectivity.