Security device and novel anticounterfeit product employing same

摘要

A security device (10) comprises a paper substrate having opposing planar surfaces. The substrate has marks (12) printed on one surface, the marks being visible from the printed surface and from an opposing surface of the substrate. The paper substrate is a tissue paper substrate having a thickness ranging from about 15 to about 40 microns, a density ranging from about 0.3 to about 1.0 gram per cubic centimeter, and a basis weight ranging from about 5 to about 30 grams per square meter.