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Home February 08, 2010

Surface Prep
Carton/Box
- Folding / Gluing
- Sheeting
Coat/Laminate
Controls
Web Handling
Slit
- Knives
Print
- Inks
- Prepress
- Digital
- Flexography
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- RFID
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Strand Tracking Problems on Your Slitter/Rewinder

Published Wednesday, May 01, 2002

A slitter/rewinder has two goals: Divide the web into strands (slitting); and create uniform individual rolls (winding). This plan has three potential pitfalls: bad slitting, bad winding, and bad strand tracking. Strand tracking is the forgotten pitfall. In this column I will present the most common sources of slit-to-wind tracking problems. Slitting knife axial runout Sometimes things aren't straight out of the starting blocks. This isn't really a tracking problem, but the result is the same: wound rolls with shifted layers. To check for this, use a dial indicator to determine if the slitting knives shift laterally ...

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