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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High Consistency Pulping Treatment of Fractionated OCC Pulp for Improving Strength

강도 개선을 위한 분급된 OCC펄프의 고농도 펄핑 처리 기술

  • Hur Young Dae ;
  • Lee Sang Gil (Program in Environmental Materials Science, College of Agriculture and Life Science, Seoul National University) ;
  • Lee Hak Lae (Program in Environmental Materials Science, College of Agriculture and Life Science, Seoul National University) ;
  • Youn Hye Jung (Program in Environmental Materials Science, College of Agriculture and Life Science, Seoul National University)
  • 허용대 (계성제지(주)연구소) ;
  • 이상길 (서울대학교 농업생명과학대학 산림과학부) ;
  • 이학래 (서울대학교 농업생명과학대학 산림과학부) ;
  • 윤혜정 (서울대학교 농업생명과학대학 산림과학부)
  • Published : 2005.12.01
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Abstract

The mechanical strength is the prime requisite for linerboard and corrugating mediums. Repeatedly recycled OCC fibers show less suitable property for papermaking mostly due to hornification and reduced fiber length. To overcome these problems many researches including fractionation, enzymatic treatment, and chemical or mechanical treatments of fibers have been carried out. In this study, the effect of mechanical treatment by high consistency pulping on the characteristics of recycled fibers as well as mechanical properties of sheets were investigated. Results on the strength properties of handsheets made of recycled fibers that were treated to same freeness level by beating and high consistency pulping, respectively, showed that beating treatment was more efficient in improving strength. Drainage and recycling potential of the fibers treated by high consistency pulping, however, were expected to be superior to beating because fines content and fiber length didn't change significantly.

Keywords

References

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