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FLEXO Magazine : June 2011
Technologies & Techniques Table 1. Wide web flexo doctor blade applications. Anilox Line Screen Recommended Blade Recommended Thickness Recommended Tip Sizes Notes < 500 Radius edge . 008-in. Radius edge Good for line and block solids with line screens of 500 or lower. 600-1,000 Bevel edge . 008 -in. 15-degree bevel Very common for flexible packaging. Fits the widest application range. Great for quick, trouble-free start-ups. 1,000+ and Process Printing Standard Lamella . 008 -in. 125-mic. lamella Small contact point provides the cleanest possible wipe, making it ideal for process printing. Table 2. Doctor blade tip specifications for clean ink wipe. Anilox Line Screen Blade Tip Thickness 400 ls 600 ls 800 ls 1,000 ls 1,200 ls 75 mic. X 95 mic. X 125 mic. X 150 mic. X X 200 mic. X X 250 mic. X Figure 2. The result of back doctoring. www.flexography.org June 2011 FLeXO 55
Sustainable Spring 2011