December 2009 PFFC

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Small Flexing, Big Benefits

Spreading and antiwrinkle rollers are great tools for web handlers. Like any good tool, having it in your toolbox is great, but what makes it valuable is understanding how it works and when to use it. Over the past three columns, I have been laying out the knowledge a web handler needs to understand spreading rollers. Last month I described the primary mechanism of bowed and expanding-surface rollers. This month let's take on their similarly misunderstood cousin, the flexible spiral roller. All spiral rollers, whether rigid or flexible, are con artists. Their turning roller's barber pole optical illusion ...

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