The Offset Pressman: How To Troubleshoot Hickeys On Your Press
With ink, there are numerous properties that can cause hickeys. Poor grind or dried ink skin in the fountain are just a couple. For us lately, it has been our high ink tack. We''ve been trying to reduce our dot gain by manipulating the viscosity of our ink. The resultant higher tack has caused us more hickeys as the ink draws fibers off the paper.