Hydrogen peroxide bleaching of mechanical pulp fines

  title={Hydrogen peroxide bleaching of mechanical pulp fines},
  author={M. Haugan and {\O}yvind Weiby Gregersen},
  journal={Nordic Pulp \& Paper Research Journal},
  pages={105 - 110}
Large amounts of fines from the different layers in the fiber wall have been produced by successive refining and screening. A pulp fraction rich in flake-like fines, primarily from the middle lamella, were screened out of the pulp after the first refining. A pulp fraction rich in fibrillar-like fines, primarily from the secondary wall, were screened out of the pulp after the third refining. The two types of fines were characterized both physically and chemically, and bleached with hydrogen… 

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  • 1999