| 摘要 |
PURPOSE:To obtain highly reliable and densely recordable optical recording elements by providing a layer A of pale leuco dye, a layer B of phenol compound which develops the color of said leuco dye and a light-absorbing layer existing between the layer A and the layer B, and making up both layer A and light- absorbing layer of either a monomolecular film or an accumulated film of the former respectively. CONSTITUTION:An optical recording element is composed of a layer-A 2 of leuco dye, a layer-B 4 of phenol compound and a light-absorbing material existing between the layer A and the layer B. The layer A and the light-absorbing layer 3 are laminates of either a monomolecular film or an accumulated film of the former. The layer B is a laminate of laminated films. 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. Consequently, the titled optical recording element has higher packing density and also higher signal/noise ratio than the conventional element, thus improving recording reliability. |
