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FLEXO Magazine : February 2012
19 tuesday,March20 Tuesday, March 20 8:00am - 10:00am FQC (Flexo Quality Consortium) Session Chairs: Paul Lodewyck, Flint Group & Jean Engelke, Eastman Kodak Company The Flexo Quality Consortium (FQC), acting as a select standing committee of the Foundation of FTA (FFTA), aims to provide the membership with a better understanding of the factors controlling the quality of the flexographic printing process. FQC projects investigate selected process variables in order to further develop reproducible process concepts that will allow for measureable advancements in flexographic printing technology. In this session, individual project teams will present their findings and answer questions. Selected reports from other sources that meet the FQC requirements for adding understanding based on quantified research will also be included. Topics will include Expanded Gamut, plate technology developments, and standards update. Introduction & Summary of Current FQC Project Status This introduction to the session will provide attendees a brief overview of the FQC and its current member activities including: the value of FQC to the membership; volunteer opportunities; an overview of our current initiatives; and a status report on all of the active FQC projects underway today. Jean Engelke, Eastman Kodak Company Ever Wonder What Would Happen If...: A Modern Day Study of Classic Plate Making Negligence! Deep relief. Too much detack. No back exposure. Over washed. Underexposed. What effect do these common reject-worthy flexo plate defects REALLY have on print? At the end of the day, how robust are today’s flexo plates? What plate processing “problems” can we say for certain will cause a problem on press - poor ink transfer, dirty print, early demise? Join us as we explore plates made using the latest technology (flat top dots, surface screening, high resolution, etc.) with known processing errors, and put them through the wringer - both in the lab and on press. What commonly (and uncommonly) measured physical plate properties are affected and to what degree? More importantly, how do they print and hold up on press over time and what correlations can we draw between plate room processes and press performance? Attendees will walk away with clearer direction regarding control in the plate room, better insight into the root cause of their printing problems, and more confidence in their decision to either remake a plate or focus on a different variable when fighting a problem on press. P.J. Fronczkiewicz, Flint Group SID vs. Accurate Color Match This presentation will address the association of standard ink density and accurate color match. Ink lay down on press, when delivered correctly, should be even and show no pinhole effect or reticulation, all too familiar in the flexo process. A common resolution may be to apply more ink. This can be done using various methods such as screening techniques or high resolution plates. However, too much ink may result in higher solid ink densities (SID). Will this higher ink density match the ISO Ink standards for flexo? Will it affect the final color value? This presentation examines the role of ink lay down, quality ink solids (SID) and matching industry standards as well as your customer’s targets. Details from tests made around different ink lay down levels and how they affect color and SID levels will be presented. Ian Hole, Esko