Journal of Korea Technical Association of The Pulp and Paper Industry (펄프종이기술)

Korea Technical Association of the Pulp and Paper Industry (한국펄프종이공학회)
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Pilot Study on the Manufacture of Kraft Paper from OCC

  • Cho, Byoung-Uk (Chemical Biotechnology Research Center, Korea Research Institute of Chemical Technology(KRICT)) ;
  • Ryu, Jeong-Yong (Chemical Biotechnology Research Center, Korea Research Institute of Chemical Technology(KRICT)) ;
  • Song, Bong-Keun (Chemical Biotechnology Research Center, Korea Research Institute of Chemical Technology(KRICT))
  • Published : 2008.12.31
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Abstract

In order to determine the most appropriate recycling line to treat old corrugated container (OCC) to substitute unbleached kraft pulp (UKP) for the manufacture of kraft paper, three recycling lines were evaluated in pilot scale tests. The recycling line consisting of kneading, flotation, washing, dispersion and screening steps was able to produce pulp with acceptable appearance. Kneading was shown to be more efficient treatment to reduce specks than dispersion. In addition, 0.2 mm slot screen was very effective to remove specks. Severe damages on fiber morphology such as shortening of fiber and formation of fines were not observed during mechanical treatments such as kneading and dispersion. Most of strength properties of the kraft paper produced with the recycled pulp were found to be slightly increased after treated in the recycling lines.

Keywords

References

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