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Dave’s Favorite Defects: Gage bands

By Dr. David R. Roisum  
Gage (caliper, density, thickness) bands in a wound roll teach us two things. First is that, for most profile-related defects, you should wind as loose as possible. Second is that winding loose may not be enough, in which case you need to diagnose and reduce the root-cause mechanics of streaky web profile.

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