Patent ID: 9540772
Date: 2017-01-10
CPC Classifications: B42D,D21H,G07D

Claim:
1. A value document comprising particulate agglomerates respectively containing at least two different homogeneous phases, wherein the first homogeneous phase is based on a luminescent substance emitting at a certain emission wavelength and the second homogeneous phase is based on a non-luminescent substance detectable by a spectroscopic method, and wherein upon an evaluation of measurement values that are obtainable by a location-specific measurement, carried out at different locations of the value document, of the luminescence intensity at the certain emission wavelength and the intensity of the measurement signal of the spectroscopic method, there is a statistical correlation between the luminescence intensity at the certain emission wavelength and the intensity of the measurement signal of the spectroscopic method; wherein, in addition to the particulate agglomerates, there is incorporated into or applied to the value document in uniform concentration a non-correlating correction component which luminesces at a certain emission wavelength or is detectable separately with a spectroscopic method, wherein the spectroscopic method is the same as that of the second homogeneous phase of the particulate agglomerate or another spectroscopic method.