Fresh Ink

Sun Chemical's WetFlex Demonstrated at drupa


Sun Chemical partnered with Energy Sciences Inc (ESI), the world’s leading electron beam supplier, and Comexi Group, a global supplier of machines dedicated to the flexible packaging sector, to showcase the WetFlex flexographic printing technology at drupa – its first public demonstration.
Being shown on the Comexi stand, WetFlex delivers wet-on-wet flexographic printing. It is designed to meet the needs of the flexible packaging market for improved print quality, efficiency and low environmental impact. WetFlex uses the inks, a new generation of energy curable ink technology specially developed and patented by Sun Chemical, for the process.
At drupa, the inks were wet trapped using Comexi’s new iF2 Icube concept Central Impression (CI) cylinder press and cured instantly by exposure to ESI’s EZCure-DF EB in-line electron beam, which is installed in an innovative “short web path” press layout. Comexi showed the new optimized EVertical EB inking system, and the system on display also featured a state-of-the-art nitrogen delivery system from Air Liquide.
One customer already using the WetFlex process and in the process of retro-fitting a second press is Schulz Konstantin Druck GmbH.
“Since we started using the Wetflex process, we have opened up a number of new business opportunities,” said Jürgen Schulz, the owner of Schulz Konstantin Druck GmbH. “We are now able to offer high quality, VOC-free low migration printing for food packaging quickly and efficiently. The process also allows us to comply easily with the increasing number of environmental regulations as well as helping lower our carbon footprint. In our experience, printers can achieve many advantages from a relatively small investment.”