This is exactly the kind of thread that finally had me join, the need to learn.
Thanks all for the info.
I was curious about the reasons for 'chipping' and thought my 2 cents could leave some insight. I work with sheet steel, and when a die cutter is not sharp or excessive clearance has developed, the steel will look the same way as the picture with the white cover, but we call it burrs or burring. This can also develop from the steel, or in this case the finished surface of the paper not allowing a clean break, most likely from weak wolven fibres or layering.
Anyway my 2 cents, thanks and look forward to contributing on the boards.
Bill