| 摘要 |
A security document containing a photograph obtained by the silver complex or dye diffusion transfer process in an image receiving layer containing light interference pigments uniformly distributed in said image receiving layer, and/or in a layer overlaying or underlying said image receiving layer, said layer(s) being present on an opaque support, characterised in that said interference pigments are composed of silicate platelets coated with either: A) a first layer of highly refractive metal oxide, and B) a second black layer essentially consisting of metallic iron, molybdenum and/or wolfram, or coated with: A) a first layer of highly refractive metal oxide, and B) a second black layer essentially consisting of carbon or metal, and C) a third layer of highly refractive metal oxide. |
