Abstract: The present invention relates to a paper of value having an embedded security element, preferably an optically variable element in the form of hologram, diffraction or interference structures applied to the paper surface, and to a method for producing such a paper of value. The paper of value is characterized by the fact that the optically variable element is embedded in the paper of value with the paper surface forming a plane that is even with the surface of the optically variable element.

Abstract: The invention relates to a security document, in particular a bank note, identity card or the like having a security element which is provided with characters, patterns, etc., visually readable at least in transmitted light and which is electrically conductive and bears additional substances for machine testing, and to a method for producing such a security element. The security element comprises a transparent film strip that bears negative writing readily capable of visual checking and is additionally provided with electrically conductive and magnetic substances.

Abstract: The invention relates to a security paper having a security thread embedded therein, running from edge to edge, that is printed with luminescent colors in such a way that they are invisible in normal lighting. The luminescent colors are provided along the security thread in successive overlapping portions which, when the colors are excited, have a length recognizable to the naked eye and show characteristic mixed fluorescences in the overlapping areas.