Dots Do It Right

On a corrugated press, these dots often needed to be over-impressed due to the irregular surface. Flute tops were printing darker, especially in quarter to mid-tones. This phenomenon is known in the corrugated world as “fluting,” and the elimination or visual reduction of this effect is considered by many to be the “Holy Grail” of corrugated printing. “The right dot structure can significantly help reduce the appearance of fluting, but to eliminate it entirely will take some effort from the corrugated manufacturers to produce a better quality board,” Skrzynski said.