Reel Density Optimization System Reduces Paper Loss on Reel Spools

摘要

Several centimeters of paper left on a parent reel spool is a common sight in many paper mills.These"left-on-spool"losses,which cannot be wound because of tension control problems and crepe wrinkles during the initial phases of reel building,may add up to several percent of lost production.But the Stora Enso mill in Kvarnsveden,Sweden,encountered a more acute problem when three of its newsprint machines started production of value-added grades containing fillers.In many cases,whole sets could not be wound because of density control problems in the first set near the spool.