Inking system for sheetfed offset presses

CRON showcasing EZcolor

At drupa CRON is demonstrating the new EZcolor system which not only reduces waste and enhances quality but also brings down the point at which short-run offset becomes profitable

Inside the EZcolor enclosure, high performance, micro-pumped ink jets exactly meter ink directly onto the first forme roller. Control of the jets is via CIP3/CIP4 data working in conjunction with an Expert database which predicts the exact ink demand under specific printing conditions. The resulting control over ink volume, to a tolerance of +/-1%, keeps a balance of ink-feed and consumption, hence ensuring a higher color consistency on all printed jobs. Also guided by the Expert database, precise pre-inking on each press unit ensures that makeready is exceptionally fast and that color is accurate after just a few impressions. These advantages give offset users an enhanced capability to compete with digital print for low print runs.

EZcolor ensures greater accuracy for light coverage areas where minor ink variations can make dramatic visual differences to image quality as the volume of ink is exactly metred to match the density requirements for each zone of the printed signature. Full-digital ink control of EZcolor also avoids impacts from unstable conditions, such as ink viscosity, temperature, humidity, press running speed and anything that may affect ink transfer in open fountain systems.

EZcolor is extremely easy to use due to its creative design and intuitive operation. The heart of the system is an enclosed manifold which replaces the cumbersome ink duct on a conventional offset press. Being enclosed the EZcolor system eliminates ink contamination and the problems associated with open fountain systems of viscosity changes through solvent evaporation. There is also no need for an agitation system to keep the ink fluid.

Packaging South Asia is the cooperating media partner for drupa 2016 which is scheduled to be held from 31 May to 10 June at Dusseldorf, Germany.