| 摘要 |
A fluorescent ink comprises, as primary constituents, long-wave activated inorganic phosphor pigment and acrylic resin, with the ink being fluorescent under long-wave ultraviolet radiation. As preferred, the fluorescent ink further comprising visible-light activated pigment, and the acrylic resin is transparent to long-wave ultraviolet radiation. Also as preferred, the inorganic phosphor is rare-earth doped, and there are additives selected from among the group of flow agent, foam suppressants, and surfactants. As most preferred, the fluorescent ink comprises a mixture of long-wave activated, rare-earth doped, inorganic phosphor pigment, visible-light activated pigment, and acrylic resin at least partially transparent to long-wave radiation, with the proportion of visible-light activated pigment and the proportion of phosphor pigment relative to each other being established to provide fluorescence of the ink. The ink is screen-printable, the pigments having particle sizes less than 15 microns, and the phosphor pigment is selected from among the group comprising red, green and blue phosphor pigments, the proportions of the red, green and blue phosphor pigments relative to each other being established to provide desired color of fluorescence of the ink. Still further, the phosphor pigment is photostable, white body color pigment, inert to moisture, and selected from among the group comprising Y2O2S:Eu, Zn2GeO4:Mn, and BaMg2Al16O27:Eu. A fluorescent display device comprises a long-wave ultraviolet light source and a display panel, with the panel imprinted with the described fluorescent ink. |
