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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Utilization of Wood Flour for Drying Energy Saving of Old Corrugated Container

골판지 원지의 건조효율 증대를 위한 목분의 이용

  • Seo, Yung Bum (Department of Biobased Materials, College of Agriculture and Life Science, Chungnam National University) ;
  • Jung, Jae Gwon (Department of Biobased Materials, College of Agriculture and Life Science, Chungnam National University) ;
  • Lee, Young Ho (Department of Biobased Materials, College of Agriculture and Life Science, Chungnam National University) ;
  • Sung, Yong Ju (Department of Biobased Materials, College of Agriculture and Life Science, Chungnam National University)
  • 서영범 (충남대학교 농업생명과학대학 환경소재공학과) ;
  • 정재권 (충남대학교 농업생명과학대학 환경소재공학과) ;
  • 이영호 (충남대학교 농업생명과학대학 환경소재공학과) ;
  • 성용주 (충남대학교 농업생명과학대학 환경소재공학과)
  • Received : 2014.11.04
  • Accepted : 2014.12.03
  • Published : 2014.12.30
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Abstract

The increase of wet web solid content in wet pressing will save drying energy greatly. We applied wood flours as spacers to increase the old corrugated container (OCC) solid contents in wet pressing. The mixed furnish of OCC and wood flours of 3-5% (wt/wt) increased bulk and drainage rate, and by increasing wet pressing pressure, its solid content started to be higher than 100% OCC furnish at more than 50% solid content level. Addition of cationic starch and drainage aid to the mixed furnish increased solid content further up to around 2%. Cationic starch addition compensated or exceeded the loss of tensile and compressive strength caused by the addition of wood flour, but drainage aid did not. Cationic starch also improved the stretch of the OCC, which could mitigate cracking at folding in boxboard.

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References

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