| 摘要 |
<p>A recording material which has… a) a dimensionally stable, optically transparent substrate which is composed of plastics and has a structured surface,… b) an intermediate layer which is present thereon, is insoluble in organic solvents and acts as a diffusion barrier with respect to the latter and, on said intermediate layer,… c) an amorphous, thermally alterable recording layer which can be produced by application from a solution and drying and contains dyes, and the intermediate layer (b) of which… b1) is 5 to 95 nm thick and, based in each case on (b), consists of… b2) 88 to 99.5% by weight of oxides and/or hydrated oxides of one or more of the elements from the group consisting of titanium, zirconium, hafnium, thorium, vanadium, niobium, tantalum, tungsten, aluminium, gallium, indium, silicon, germanium and tin and of… b3) 0.5 to 12% by weight of hydrocarbon radicals, and… b4) can be produced by dissolving an alkoxide or several alkoxides of one or more of the above-mentioned elements in a polar liquid medium essentially containing C1- to C6-alkanols, applying this solution to the surface of the substrate (a) and heating the moist layer obtained in this manner in the presence of water at 50 to 120 DEG C for 5 minutes to 2 hours, and a process for the production of the recording material.</p> |
