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FLEXO Magazine : October 2009
42 FLEXO OCTOBER 2009 www.flexography.org FIGURE 5. Thinner plates result in less distortion and cupping. FIGURE 6. Energy and carbon footprint charts based on an Eco-Efficiency Analysis. Change to sleeves / cylinders with new OD Grind larger diameter sleeves / cylinders down to target OD Re-cover current sleeves to new target OD Change tape thickness (not always a recommended option) For 10 pitch and Stork metric repeat sizes, the same op- tions as above apply. One must get new sleeves / cylinders or recover or grind down as necessary to reach the target OD. While the conversion of presses to .030in. plates would require capital investment in many cases, such transitions can be managed in partnership with suppliers to minimize cost. And when considering the benefits of faster, consistent, reliable platemaking, high-quality print, reduced costs, and better eco-efficiency, it may finally be time for flexography to go thin. FIGURE 4. The weight reduction results is major postage savings for those that ship plates or have them shipped to their facilities. TECHNOLOGIES & TECHNIQUES
Sustainable Fall 2009