Back in the 1980’s the performance of press felts was mainly judged by looking at the sheet; nobody really knew what was happening inside the felt once it was running. With the introduction of nip dewatering the felt designers needed more information.
A thick, bulky press felt is not a good thing. At least, not when you are running with nip dewatering. In this blog post I tell more about the relation between nip dewatering and Feltest.
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