Fluorescent inks
Fluorescent print inks possess the same characteristics as standard sheetfed offset inks, but with additional luminescent properties. Under normal daylight, printed products exhibit a fluorescent effect.
These fluorescent properties are achieved through the use of special pigments, which, however, demonstrate significantly lower lightfastness levels than conventional pigments. In practice, this means that the fluorescent effect is only temporary in daylight, and printed products should not be exposed to direct sunlight.
Fluorescent printing inks have no lightfastness properties and are not resistant to alcohol and pyroxylin coating. If printed products made with fluorescent printing ink are to be postpress processed (foil lamination, dispersion, and UV coating), color tone changes may occur due to a lack of lightfastness properties. Therefore, test prints are necessary.
Fluorescent inks should be treated like conventional printing inks. No special image editing is required.
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