| 摘要 |
<p>The present invention provides an optical information recording medium having, a substrate, and on one side of the substrate, in the following order, a recording layer, a first adhesive layer, a first transparent sheet, and a hard coating layer, and on the other side, in the following order, a second adhesive layer, a second transparent sheet, and a label layer, wherein a ratio of the humidity expansion coefficient of layer (b) to that of layer (b) for each of the following (1) to (3) is in a range of 0.8 to 1.2: (1) (a) first adhesive layer, and (b) second adhesive layer; (2) (a) first transparent sheet, and (b) second transparent sheet; and (3) (a) hard coating layer, and (b) label layer.</p> |
