Method for the production control of identification features printed with a printing press on a printing material or article

摘要

The invention relates to a method for production control of printed with a printing machine on a substrate or article identification features, the identification features a visually detectable first identification element and a visually non-detectable second identification element, wherein the second identification element only by irradiation to a visually detectable spontaneous emission and fluorescence or phosphorescence is excited, wherein in the printing machine of the printed identification features in each case a sequence is detected with at least three images, wherein belonging to the respective sequence first image of the identification feature only the visually detectable first identification element maps, which to the respective sequence belonging second image of the identification feature, the first identification element together with the spontaneously emitting under irradiation second identification element a The third image of the identification feature belonging to the respective sequence images the first identification element together with the second identification element which fluoresces or phosphorescences after the irradiation has ended, wherein the at least three images belonging to the respective sequence are evaluated by a control unit to determine whether the relevant one Identification feature each having the first visually unrecognizable, only by irradiation spontaneously emitting and fluorescent after completion of this irradiation or phosphorescent second identification element.