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FLEXO Magazine : February 2012
21 tuesday,March20 The Interaction Between Flexo Plate Mounting Tapes & New Photopolymer Plate Technologies and the Effect on Print Quality at High Press Speeds The demand for increased print quality in the flexographic printing industry has driven suppliers to make vast improvements to their products. Within the creation of new photopolymer print plate technologies and foam flexo plate mounting tapes, flexo’s print quality has been able to compete with other printing techniques that were previously the technology of choice in the high end printing market. As improvements in both photopolymer plates and foam plate mounting tapes continue, the characteristics of these two inputs greatly impact the resulting print quality. As newer and faster press speeds enter the market, expectations to maintain and improve print quality at faster press speeds creates a number of challenges, one of the most notable is the interaction between photopolymer plates and flexo plate mounting tapes. This presentation looks at different characteristics of flexo plate mounting tapes and photopolymer plates that contribute to resulting printed ink densities, and how their interaction affects the final print results in an ever improving and faster printing world. Jamie Eggleston, 3M Different Approaches to Reduce Press Bounce The goal of this work is to learn more about the main influences on press bounce on flexo presses and possible ways to minimize it. A detection device was utilized to quantify cylinder vibrations and to optimize the sleeve/tape/plate construction. The results from this designed experiment will help to optimize printing conditions in a production environment as well as for the development of new products. Bob Adler, Flint Group Printing Plates Achieving Acceptable White Opacity Values At High Press Speeds – What Are The Optimum Parameters? The objective of this study is to gain an understanding of the optimum plate durometer, cushion tapes, surface screening parameters and ink conditions using high speeds to optimize white opacity values. The many variations of plates, cushion tapes, inks, screening technology and ways to deal with press bounce makes it difficult to understand the optimal conditions to avoid white opacity concerns. Knowing these ideal conditions can assist printers in maximizing press speeds and achieving high print quality standards. However, understanding these conditions can be both time-consuming and costly. This presentation provides the results of carefully run experiments, ran at high speeds, using solvent based inks on a wide web press. Rich Emmerling, Flint Group Printing Plates