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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The Influence of Pulp Fines on Paper Structural Characteristics

종이의 구조 특성에 미치는 미세섬유의 영향

  • Lee, Jin-Ho (School of Forest Resources and Rural Engineering, College of Agriculture, Life & Environment Sciences, Chungbuk National University) ;
  • Park, Jong-Moon (School of Forest Resources and Rural Engineering, College of Agriculture, Life & Environment Sciences, Chungbuk National University)
  • 이진호 (충북대학교 농업생명환경대학 산림과학.지역건설공학부) ;
  • 박종문 (충북대학교 농업생명환경대학 산림과학.지역건설공학부)
  • Published : 2006.12.30
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Abstract

Paper has fibers and fines network structure and it is strongly affected by interface bond-ing between fibers. Paper structural properties can be determined depending on the inter-fiber bonding. Fines play an important role in Campbell and consolidation effect through wet pressing and drying operations. The fines are essential for the formation of bonds between fibers and for the improvement of strength properties of papers. Since the fines are components of the pulp, there are always two factors to be considered: the quality and quantity of the fines. The quality of fines might be a potential variable to give a more accurate picture of the papermaking potential of the pulp. The object of this study is to investigate the effect of different types of pulp fines on the properties of paper and to access the potential of fines for controlling the bulk of paper. Refined Sw-BKP, Hw-BKP and BCTMP fines were used to investigate the fines effect. Wet-web strength, breaking length, scattering coefficient, and hydrodynamic specific volume, and drying shrinkage were measured. According to the results, chemical and morphological compositions of fines do not strongly affect to wet-web forming by their similar Campbell effect, but strongly affect to drying operation which forms hydrogen bonding among fiber-fines-fiber matrixes. Paper bulk should be controlled by the extent of hydrogen bonding between fibers during drying operation.

Keywords

References

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