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FLEXO Magazine : June 2013
cling more aggressively to increasingly deeper cells because of the added cell wall surface. So at some point, even more depth provides no more volume transference. In addition, because the walls between cells are not as thick, the life of the ceramic roller is shortened. Also, a roller with deeper cells must be cleaned often and thoroughly, so that ink does not dry inside the cells, thus reducing their volume. (Figure 5). HIGH DEFINITION SOLUTIONS Extensive research and testing has recently shown that the shape of the cell can also affect how much of the cell’s ink capacity can be picked up by the plate. Hexagonal or honeycomb-like cell patterns have historically proven to be the most efficient shape on an anilox roller because they nest well and leave a relatively small land area. However, be- cause more high definition images are being created on digital plates, higher ink volumes are needed on rollers in the highest lpi ranges, in order to maintain density and clarity. New laser technology enables anilox roller engravers to create hybrid roller cells shaped like extended hexagons. (Figure 6). This reduces the amount of land area and creates more volume in each cell. It also allows a Mount-o -Matic Direct Drive For mounting flexo plates onto sleeves SLeeve- Mounter Pre-PreSS eQuiPMent FROM MODEST SYSTEMS TO THE MOST ADVANCED HIGH-TECH SOLUTIONS FOR ANY bUDGET Mount-o-Matic MK ii For mounting flexo plates on cylinders as well as on sleeves www.flexologic.nl innovation is the key to our success. Head office AV Flexologic B.V. P.O. Box 252, NL-2400 AG Alphen aan den Rijn The Netherlands • Tel. +31 (0)172 434221 Mail: email@example.com FaMM Fully Automatic Mounting Machine 44 FLEXO June 2013 www.flexography.org Figure 4 Figure 5