A security feature for an identification document and method for making it
provide layers of security, including, for example, tamper evidence,
optically variable effects, and personalized information that links the
security information to the document and its bearer. The feature is made
by printing a first material representing first information on a core
layer of the document. This first material at least partially covers the
core layer. One example is Xerographic printing of information about the
ID document applicant and the applicant's photo. The process then applies
a second material representing second information at least partially
overlapping the first material, and cures the second material. One
example is ink jet printing of personal information with a UV curable ink
in the form of a relief pattern on the core layer. Finally, the process
applies a laminate layer over the core layer. The laminate layer covers
the first and second materials. The first and second materials adhere
differently to the laminate and core layers such that removal of the
laminate layer from the core layer causes a separation of the first and
second materials. The relief pattern is made to give the document a
tactile feel as well as create optically variable effects.