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FLEXO Magazine : July 2012
Plants & Processes Engineering Electronic Art for Print scientific Details speed Designs to Press By larry Moore Anyone who reads FLEXO is likely proficient enough in prepress to know what is required to receive a customer file and send it through to plate and press. 9 SIMPLE RULES • Image resolution should be 2-2.5 times the screen value • Anilox selection should be 5-6 times the line screen • Accepting only CMYK images from the designer limits the color that you will be able to print without the use of additional retouching tools to enhance the chroma of the images • PDF files created for the commercial print world are not always well suited for packaging • Make sure that artwork is color corrected before it goes to proof and print • Fit as many pieces on the plate and substrate as possible • Highlights and shadows dictate dot shape • Stay away from screens that have chaining effects. They will produce high amounts of dot gain • Having an accurate proof before going to print sets the correct expectations and optimizes print production, avoiding costly errors and waste several tools help engineer electronic art for print. With dynamic content management, critical text (and barcodes) is separated from the base art as tagged elements. Before a job is printed, a shared database or XMl data is polled for updates. Photos: esko. While some automated systems may not be perfect, in general, automated trapping has been proven over and over to be more accurate and consistent than manual methods. 50 FLEXO july 2012 www.flexography.org