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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Wet Pressing Properties of OCC Stock depending on the Fines Contents

미세분 함량에 따른 골판지원지의 압착탈수 특성

  • Jung, Woong-Ki (Dept. of Biobased Materials, College of Agriculture and Life Science, Chungnam Natl. Univ.) ;
  • Sung, Yong Joo (Dept. of Biobased Materials, College of Agriculture and Life Science, Chungnam Natl. Univ.)
  • 정웅기 (충남대학교 농업생명과학대학 환경소재공학과) ;
  • 성용주 (충남대학교 농업생명과학대학 환경소재공학과)
  • Received : 2012.12.01
  • Accepted : 2012.12.14
  • Published : 2012.12.30
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Abstract

The effects of fines contents in OCC stock on the wet pressing process were evaluated in this study. The fines were collected from the beaten OCC stock by using 200 mesh. The dryness of handsheet samples after the couch and after the 1st wet press were greatly affected by the fine contents of the OCC stock. The higher contents of fines resulted in the lower value in dryness but the higher value of density followed by the higher strength properties. The addition of the retention aids and the drainage aids on the OCC stocks showed the wet pressing efficiency were greatly affected by the fine contents rather than the addition of polymer additives. The increase in the fine retention by the polymer additives offset the improvement in the wet pressing efficiency originated from the polymer additives.

Keywords

References

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