Durable Eco-Solvent Spot Color Inks
To meet the specific requirements of the traffic sign industry, Avery Dennison engineered special spot color inks that can deliver consistent and durable traffic signs, which can be warranted up to twelve years depending on the sheeting series.
What are Eco-Solvents inks?
Eco-solvents inks are inks that have considerably fewer solvents than traditional screen printing inks. An eco-solvent ink is composed of a carefully tuned balance of solvents, pigments, and binders, designed to be delivered through an inkjet printer. Because eco-solvent inks are designed for the exact process of inkjet printing and do not require the messy handling of screen printing, the amount of solvent necessary is greatly reduced.
How do Eco-Solvents work?
Most of the color and durability performance of inks are attributed to the pigments and binders. The solvent is mostly a carrier for these critical elements, and ensures proper viscosity. Additionally, the solvent primes the sheeting surface enabling the binders to take hold. The solvent then evaporates. Digital printing and eco-solvent inks drastically reduce or eliminate exposure to solvent fumes compared to traditional screen printing inks.
TrafficJet uses the same durable and high quality pigment technology as our overlay film and screen inks.
Weather Tested Durability
The real test of durability for a traffic sign is how well it can withstand natural weathering, including rain, humidity, and UV exposure. To simulate these conditions, the traffic industry uses outdoor accelerated weathering and artificial xenon weathering. TrafficJet inks have been rigorously and successfully weathered by testing laboratories around the world, making TrafficJet the most widely approved digital printing system for traffic sign fabrication.
TrafficJet Eco-Solvent Red Ink
Red ink has traditionally been the traffic color with the largest color shift or ΔE in long-term weathering. In a direct comparison, TrafficJet performs considerably better than screen printing when tested in accordance with ASTM requirements.
The graph below compares data on the red 4930 silkscreen ink, to the red TrafficJet eco-solvent spot ink, before and after independent weathering in a Xenon chamber by Calcoast Industrial Testing Laboratory per ASTM D 4956-13 Method I. The difference in ΔE, which measures shift in color, shows that the eco-solvent spot inks used in the TrafficJet™ Print System are up to 5 times more resistant to color shift when compared to the proven 4930 silkscreen ink series.
CMSpot6: Combining TrafficJet Spot Colors with CMYK Inks
The traffic sign industry continues to see greater demand for more sophisticated signage. With this demand comes a need for greater sign durability—particularly signs that include agency logos and other custom colored images that help create identity or guide visitors to tourist venues. See how Avery Dennison CMSpot6 inks meet this demand by clicking here.
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