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FLEXO Magazine : October 2012
liquid versus sheet with the parameters outlined above. Here are some specifics with respect to liquid photopolymer printing plates: • Components used in the washout process consist of a water-based detergent, defoamer and developer • Manufacturing throughput ranges from 1.5 to two hours • Any unexposed resin can be reclaimed and used again, if mixed properly with virgin resin. This equates to a minimal waste factor in material • "Back-masking" technique can be easily used to remove non-image area resin, saving money and sheet weight. This process is required when creating I-Plates, or in-posi- tion plates • Liquid photopolymer I-Plates are created with "natural" flat top dots, especially with a capped plate (very low fluting!) • Mounting can be eliminated with vari- ous digital workflows available today • Digital workflows allow images to be ganged in imposition style, as opposed to requiring the full 5280 glass for one job • "Ink jet" film output devices can be used if a full digital workflow is not feasible for trade shops or converters • Platerooms do not require stringent mandates in terms of air exchange that is normally associated with sol- vents used to process sheet plates • Manufacturing steps involved with liquid plates are the most environ- mentally friendly and sustainable process available today • Small Format (22-in. x 28-in.) to large format (52-in. x 80-in.) pro- cessing systems are available. LIQUID PLATE APPLICATIONS: 1. Corrugated & Multiwall Bag 2. Line screens up to 100 lpi 3. Print applications requiring plates that caliper between 0.107-in. - 0.255-in. thick Sheet photopolymer plates are quite versatile and many different variet- ies have been manufactured to meet specific market needs. There are sheet plates that are specifically compatible with water, solvent, or UV inks, and there is most likely a plate that will print well on paper, poly, film and foil. Sheet photopolymer plates have been the industry standard for high- quality flexo printing in the narrow and wide-web markets, as well as some cor- rugated markets. Liquid photopolymer plates have set the industry standard in the corrugated and multi-wall bag arenas due to their flexibility. nyloflex NExT exposure system for sheet photopolymer plates. www.flexography.org OCTOBER 2012 FLEXO 47 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 www.flexologic.nl Innovation is the key to our success. FAMM Fully Automatic Mounting Machine 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: firstname.lastname@example.org PHOTOPOLYMER PLATEMAKING EQUIPMENT