High opacity in flexo whites
Mid-volume anilox roller engravings are widely used in both the flexible packaging and UV printing segments to maximize opacity in flexo whites. There are many other variables that contribute to their success like substrate treatment, drying capacity, and plate and tape combinations. But these engravings offer a very cost-effective solution when compared to other forms of printing formats.
In conducting many banded roller trials with numerous geometries and ink suppliers, it has been determined that the 30 degree channeled engraving pattern is most cost-effective with high opacity whites. The opacity readings that were obtained rival any other geometry available. Unlike the standard 60 degree honeycomb geometry, the 30 degree geometry is positioned so the flat is at the top of the cell. Similar to the orientation of a stop sign.