Patent ID: 8283004
Filing Date: 2012-10-09
Classification: B41M,B42D

Abstract:
1. A fluorescent mark indicator comprising: a substrate, including: wherein each of the first, second, third, and fourth colorant combinations is formed from non-fluorescing printing materials; wherein the first and third colorant combinations are a same visual color under normal illumination and the second and fourth colorant combinations are a same visual color under normal illumination; wherein the first and second colorant combinations are a different visual color under normal illumination and the third and fourth colorant combinations are a different visual color under normal illumination; wherein the first and second patterns have a dissimilar radiated fluorescence under a UV light based on one of the first or second patterns suppressing a radiated fluorescing of the substrate and a remaining of the first and second patterns reflecting light fluorescing off of the substrate as an authenticating mark.