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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Strength Property Improvement of OCC-based Paper by Chemical and Mechanical Treatments (II)

골판지 고지의 물리화학적 처리에 의한 강도향상(제2보)

  • Lee, Jong-Hoon (Dept. of Forest Product, College of Agriculture, Chungnam National University) ;
  • Seo, Yung B. (Dept. of Forest Product, College of Agriculture, Chungnam National University) ;
  • Jeon, Yang (Dept. of Forest Product, College of Agriculture, Chungnam National University) ;
  • Lee, Hak-Lae (Dept. of Forest Product, College of Agriculture and Life Sciences, Seoul National University) ;
  • Shin, Jong-Ho (Pulp and Paper Research Center, Korea Research Institute of Chemical Technology)
  • 이종훈 (충남대학교 농과대학 임산공학과) ;
  • 서영범 (충남대학교 농과대학 임산공학과) ;
  • 전양 (충남대학교 농과대학 임산공학과) ;
  • 이학래 (서울대학교 농업생명과학대학 임산공학과) ;
  • 신종호 (한국화학연구소 펄프제지연구센터)
  • Published : 2000.06.01
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Abstract

In the previous experiment, it was found that OCC pre-treatment with Hobart mixer at 20-25％ consistency for 3 hrs or more followed by the application of the equal refining time, caused the increase of tensile strength, burst strength, compressive strength and tear resistance, compared to the no pre-treated. Four completely different fibers, which were Hw-BKP, Sw-BKP, White ledger, and OCC were selected for this experiment to investigate the effect of mechanical pre-treatment process on different fibers. From the experiment, it was found that the mechanical pre-treatment did not decrease fiber length at all, but decreased freeness, com-pared to the no pre-treated, when the same refining time was applied. WRVs of the pre-treated fibers were higher than the no pre-treated at the same freeness level. It was speculated that the mechanical pre-treatment induced only hydrophilic nature of fibers without damaging fiber length by delaminating fiber walls. The fiber surface area and the physical strength differences of handsheets will be discussed in the next publication.

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References

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