Iriodin is a pearly luster pigment consisting of mineral mica and
metal oxide layers. Iriodin coatings can create interesting
iridescent color effects, for example the color impression created
by pigment changes when viewed from a different angle. The thicker
the layer of pigment applied, the more pronounced the effect. A
chamber doctor blade system is required in the coating unit for
these special coatings.
The cosmetic packaging for eye shadow shown here in the
picture for example has been finished using two different Iriodin
effects. The image on the packaging is underlaid with a full-area
silver-white Iriodin pearly luster to give it a special sheen.
Iriodin with a gold gloss effect has been applied to the part of
the image above the eyelid.
These effects with Iriodin coatings were created on a
Speedmaster with Duo Application. An Iriodin pearly luster coating
is applied in the flexographic printing unit ahead of the offset
units, followed by conventional six-color overprinting. The coating
unit is then used for full-area application of a water-based primer
to the layers of ink. Finally a UV spot coating of Iriodin Solar
Gold is applied.
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