Oh no… Streaks again!
Have you ever experienced any problems like streaks, gearmarks, banding, bouncing and the like?In this short video I try to explain some of the most common causes at the origin of these defects in flexographic printing.
Impression
10 things to avoid in flexography to prevent from troubles
Have you ever experienced any troubles when printing in flexo? Here is a list of things you should avoid when approaching flexography in order to prevent from troubles in production.
Where does print happen?
It is important to know in depth the technical characteristics of the printing press, and especially the configuration of the cylinders. Their diameters, combined with the gauge and the resilience of the plate, of the mounting tape and of the substrate, will determine whether the print will happen in the right position, without slurring, having …
Hollow dots, like donuts, perforate ink layers
Ink builds around small print elements like dots and small type creating hollow shapes like donuts. Inked dots perforate ink layers that were printed by previous printing groups. This happened on external print on plastic film, solvent based inks, flat-top plate, sequence YMCK. Combined action of excessive impression with high ink volume and low viscosity …