lerated electrons is emitted towards the web in an evacuated chamber. When energised electrons hit ink or coating, curing takes place instantaneously, without the need for PIs.
Although the atmosphere contains 78% nitrogen, oxygen inhibits the curing process and results in the generation of ozone. For this reason, the EB process is conducted under an inert nitrogen blanket.
The instantaneous cure allows immediate post-press finishing processes as soon as the stock comes off the press, shortening time to market; and this fast response time and elimination of inventory problems are additional financial advantages of EB curing.
Because energy curable inks contain no diluents, and are 100% pure ink, evaporation plays no part in the curing process, resulting in clean, sharp dots. According to Comexi, meeting high quality standards within high line screens has never been easier.
Developing new markets
This capability opens the door to markets previously considered out of reach and allows cost-effective competition with gravure printing.
The systematic reduction of run lengths is a reality in most markets. Efficiency in flexo must mean reduced costs with machinery best suited to short runs, which means a press that offers reduced downtime and minimised maintenance. Another requirement is
for a high degree of automation, reducing job changeover times and increasing profit margins.
The eight-colour F4 FLEXOEfficiency press helps printers to face all of these challenges. For instance, it features a new doctor blade chamber design that dramatically reduces changeover times and increases accessibility, simplifying maintenance and changeovers.
It’s available in widths from 670mm to 870mm with a minimum repeat length of 240mm and a maximum of 600mm, creating cylinder savings for a direct impact on cost per square metre. Maximum speed is 300 m/min.
Advanced Packaging Technology
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