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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Studies on Seasonal Variation of Linerboard Strength (I) - Effect of Pulping Temperature of OCC on Strength-

계절에 따른 골판지 원지의 강도변화에 대한 연구 (1) - OCC의 해리온도가 강도에 미치는 영향 -

  • Lee, Kwang Seob (Dept. of Paper Science & Engineering, College of Forest and Environmental Science, Kangwon National University) ;
  • Pak, Yell Rim (Dept. of Paper Science & Engineering, College of Forest and Environmental Science, Kangwon National University) ;
  • O, Jun (Dept. of Paper Science & Engineering, College of Forest and Environmental Science, Kangwon National University) ;
  • Jo, Woo Sang (Dept. of Paper Science & Engineering, College of Forest and Environmental Science, Kangwon National University) ;
  • Jo, Ik Jeong (Dept. of Paper Science & Engineering, College of Forest and Environmental Science, Kangwon National University) ;
  • Ryu, Jeong Yong (Dept. of Paper Science & Engineering, College of Forest and Environmental Science, Kangwon National University)
  • 이광섭 (강원대학교 산림환경과학대학 제지공학과) ;
  • 박열림 (강원대학교 산림환경과학대학 제지공학과) ;
  • 오준 (강원대학교 산림환경과학대학 제지공학과) ;
  • 조상우 (강원대학교 산림환경과학대학 제지공학과) ;
  • 조정익 (강원대학교 산림환경과학대학 제지공학과) ;
  • 류정용 (강원대학교 산림환경과학대학 제지공학과)
  • Received : 2016.06.08
  • Accepted : 2016.06.22
  • Published : 2016.06.30
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Abstract

Linerboards have been produced by recycling recovered paper such as old corrugated containers(OCC). Usually linerboards produced during summer season show weak strength compared with those of produced during winter. In order to cope with the weak strength of linerboards produced during summer, and to confirm uniform quality, it is important to understand the seasonal effect on strength properties. Effect of pulping temperature of the OCC for linearboard production was investigated by controlling pulping temperatures at $18^{\circ}C$ and $51^{\circ}C$. Low pulping temperature ($18^{\circ}C$) caused more generation of fines in stock. Consequently retention and drainage of linerboard defibrated at high pulping temperature ($51^{\circ}C$) were better than those of $18^{\circ}C$. Strength properties of handsheet at low pulping temperature were higher than those of high pulping temperature and it could be confirmed that low pulping temperature during winter is one reason of seasonal variation of recycled linerboard strength. It is considered that surface modification of OCC fibers by harsh pulping action during winter caused increase of paper strength.

Keywords

References

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