| 摘要 |
PURPOSE:To obtain optical recording elements having high reliability and high packing density by providing a layer A of leuco dye, a layer B of phenol compound which develops the color of the leuco body of the dye and a light-absorbing layer existing between the layers A and B, each layer being formed with either a monomolecular film or an accumulated film. CONSTITUTION:The titled optical recording element is composed of a layer-A 2 of a leuco body of dye, a layer-B 4 of phenol compound and a light-absorbing layer 3 of light-absorbing material which exists between the layer A and the layer B. These layers are laminates of either monomolecular film or its accumulated film. The layer-B 4 is supported on a substrate 1, and the substrate, layer B, light-absorbing layer and layer A are laminated in that order. For these reasons, compared to the conventional optical recording element, the titled element has higher packing density and higher signal/noise ratio, thus improving recording reliability. |
