Patent ID: 7625501

Claim:
A color-converting photoluminescent film, said film comprising a mixture of: (a) a clear UV curable resin and photo-initiator that does not substantially absorb blue light; and (b) a fluorescent pigment particle composition comprising at least one dye and a toluene sulfonamide melamine formaldehyde resin, wherein a molecular additive is provided in (a) and/or (b), and said molecular additive is selected from the group consisting of light stabilizers, ultraviolet absorbers (UVAs) and mixtures thereof, said light stabilizer is provided in an amount of about 0.1% to about 6% by weight by total weight of the pigment particles composition and said UVAs is provided in an amount of about 0.1% to about 5% by weight total of said pigment particle composition, and wherein said mixture is deposited onto a substrate to form a film and UV cured and wherein said light stabilizer is selected from the group consisting of hindered light amine stabilizer and nickel compounds.