| 摘要 |
The invention relates to an optically variable security attribute for documents, securities, banknotes, packagmgs, and goods. The aim of the invention is to provide an optically variable security attribute having concealed detectable attributes in order to increase the security against counterfeiting. To this end, the invention provides an optically variable security attribute comprising diffractive structures that consist of an electrically conductive polymer and of at least one supporting film (1), a protective layer (7), a lacquer coat (3), and a reflecting layer (4), and the electrically conductive polymer is a polyethylene dioxvthio polystyrene sulfonate (PEDT/PSS) arranged on different layers. |
