Security document with security features in the form of luminescing substances

摘要: Security paper with narrow band luminescing authenticity characteristics which can only be excited in substantially the same wavelength region it also emits. With these therefore signal is overlapped or covered by test of several orders magnitude stronger. The security papers cannot accordingly tested normal processes devices for determining luminescence. used take advantage decay behavior luminescence emission detection. added to material, printing ink used, further mottling fibres threads.