| 摘要 |
PURPOSE:To provide an optical information recording medium excellent in preservation stability and inhibiting the lowering of its reflectance by the photo- deterioration of the recording layer contg. an org. coloring material due to acidic gases such as CO2 and CH3COOH generated by the thermal decomposition of an adhesive by irradiation with laser light at the time of recording or reproduction. CONSTITUTION:In this optical information recording medium with a recording layer 3 contg. at least an org. coloring material and an adhesive layer 5 or a protective layer laminated in a contact state, the adhesive layer 5 or the protective layer contains an acidic gas absorbent 4. |
