Patent ID: 6989069

Claim:
A method for manufacturing an optical information recording medium having a track pitch of 200 to 400 nm and a groove depth of 20 to 150 nm, and being capable of recording and reproducing using a light with a wavelength of 450 nm or less, the method at least comprising: a metal reflective layer forming step for forming a metal reflective layer on a substrate; a recording layer forming step for forming a recording layer containing an organic dye on said metal reflective layer; and a cover layer forming step for forming a cover layer on said recording layer; in this order, wherein said cover layer forming step includes a step of adhering, onto said recording layer, a cover layer composed of a cover film provided with a sticking adhesive layer so that said sticking adhesive layer comes into contact with a surface of said recording layer, and wherein said cover layer is prepared through; a step of continuously providing a sticking adhesive layer containing a cross-linking agent on a surface of a cover film wound in a roll; a step of winding said cover film provided with said sticking adhesive layer again into a roll; a step of storage until a cross-linking reaction of said sticking adhesive layer is substantially terminated; a step of punching said cover film provided with said sticking adhesive layer into a disc shape; and a step of storing said cover film provided with said sticking adhesive layer of a disc shape in a stack in a substantially horizontal state or vertical state, in succession.