Flexographic Printing

Folding cartons have been printed flexo for many years.
In the past 20 years the industry has upgraded to newer CI presses.
The ability to print wide webs and vary the repeat have made the process attractive.
Improved quality of flexo, water-based inks and the lower cost of equipment have have led to adoption of these presses by converters.
Folding carton equipment differs because of substrate.
The heavy board stock used requires higher tension levels, larger idler rolls and more sophisticated splicing and control units.
Unwinds must handle 72" diameter rolls and automatically splice them.
Idlers must be of large diameter to avoid breaking or creasing the board.
The cutter-creaser involves intermittent motion.
Web control is critical since we must print a quality job in register and then relax the web and die-cut in resister.
Electric eyes register the cutter to the web.