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FLEXO Magazine : June 2013
There are hundreds of variables that will affect the lifecycle of the anilox roller. When you lay all these variables out, it is easy to see why we all wrestle with the premature wear and the replacement of anilox rollers in the flexo process. From handling and care around the pressroom to constant contact of doctor blades and the heat created by the fric- tion of those blades. Following proce- dures and setting standards into place is the only way to optimize profitability of the production process. The cleaner the environment is kept, the easier it is to manage and detect when any of these variables go out control. n About the Author: Bill Poulson has been with Harper Corporation of America for 14 years. He is the Northeast techni- cal graphics advisor for the Harper Graphic Solutions Division. He works directly with all narrow and wide web coaters and printers in flexo and gravure. Bill can be contacted via www. harperimage.com for any troubleshoot- ing issues, as well as any printing and coating recommendations. Back doctoring is noticed when you get ink in the form of stalactites dripping off the bottom clamp of the chamber. Stalactites can cause light polish lines to appear on the anilox roller. The picture shows some ink build up, excessive enough to make contact with the anilox surface. This has to be eliminated. www.flexography.org June 2013 FLEXO 61 © 2013 HARPER