Patent ID: 7819327

Claim:
An identification document comprising: a core including a front surface and a back surface; an over-laminate including a front surface and a back surface, the back surface being adjacently positioned with said core front surface; and two or more inks provided on at least one of front surface of the core or the back surface of the over-laminate, the two or more inks being characterized as including substantially the same degree of adhesion to both the front surface of the core and to the back surface of the over-laminate, the adhesion of the two or more inks to the front surface of the core and the adhesion of the two or more inks to the back surface of the over-laminate each being relatively stronger than a cohesive strength of the ink, and the two or more inks are provided on the front surface or the back surface in a plurality of patterns, the patterns including at least a plurality of intertwined or interlocking circles or mesh structures, wherein a first ink of the two or more inks comprises patterns in a first color and a second ink of the two or more inks comprises patterns in a second, different color; and wherein the two or more inks cohesively delaminate upon an intrusion attempt, resulting in portions of the plurality of intertwined or interlocking circles or mesh structures in the first and second colors adhering to the first surface of the core and portions of the plurality of intertwined or interlocking circles or mesh structures in the first and second colors adhering to the back surface of the over-laminate, such that tampering is evident.