Color Research and Application, Vol.20, No.2, 124-130, 1995
LUMINESCENT PIGMENTS IN SECURITY APPLICATIONS
Papers and any print able surface that have value are subject to forgeries. Various methods of security printing are identified and utilizing luminescent pigments as security items are discussed. Problems with classical luminescent pigments because of toxicity and particle size are identified A new range of luminescent pigments that are either excited by UV ol IR are presented and their chemical and physical characteristics defined Also samples from actual security applications are given.