Patent ID: 7101655

Claim:
A fluorescent single- or multi-layer optical disc for storing information, the disc comprising at least one information layer, said at least one information layer comprising: a transparent film substrate; a fluorescent composition covering the transparent film substrate and comprising a fluorescent dye, a film-forming polymer, a plasticizer, a surfactant and a light stabilizer; and a primer layer placed between the substrate and the fluorescent composition; wherein at least one of the substrate, the fluorescent composition and the primer layer comprises a material providing effective adhesion of the fluorescent composition to the substrate or the primer layer so as to prevent formation on an inter-layer boundary of non-fluorescent poly-molecular associates of fluorescent dyes causing quenching of fluorescence, and wherein the dye is present in an amount of 0.1 weight percent to 10 weight percent of the information layer and the plasticizer is present in an amount of 10 weight percent to 50 weight percent of the information layer.