In a substrate having a graphic and a method for applying the graphic
thereto, a non-phosphorescent material is applied to the substrate to
define a non-phosphorescent region of the graphic and a phosphorescent
material is applied to the substrate to define a phosphorescent region of
the graphic. At least a portion of the non-phosphorescent region and at
least a portion of the phosphorescent region are in overlapping
relationship with each other so as to define an overlapping region of the
graphic. When the overlapping region is exposed to light sufficient to
cause phosphorescence of the phosphorescent region the at least a portion
of the phosphorescent region phosphoresces to render the overlapping
region visible in the absence of light. In another embodiment, the
graphic has a non-photoluminescent region in overlapping relationship
with a photoluminescent region.