Patent ID: 7384694

Claim:
A multi-layer coating applied to a substrate wherein the coating reflects colored light and comprises: (a) an upper layer comprising a resinous binder and colorants which emit fluorescent light when exposed to visible light; the colorants being selected from dyes and pigments that will not scatter light that mask fluorescent light; the colorants being present in the upper layer in amounts of 0.001 to 50 weight percent; and (b) a lower layer comprising a resinous binder and light-absorbing particles, wherein said coating composition exposed to a first light level exhibits a first colored appearance that is dominated by absorbance of light by both of said colorants and said light-absorbing particles and wherein the coating composition exposed to a second light level of higher intensity than the first light level exhibits a second colored appearance dominated by fluorescent light emitted by said colorants, wherein the lower layer has a color value L* less than 40.