Journal of Korea Technical Association of The Pulp and Paper Industry (펄프종이기술)

Korea Technical Association of the Pulp and Paper Industry (한국펄프종이공학회)
권호 표지
DOI QR코드

DOI QR Code

Effects of Kneading Treatment on the Properties of Various Pulp Fibers

Kneading 처리가 다양한 펄프 섬유들의 특성에 미치는 영향

  • Kim, Ah-Ram (Dept. of Paper Science & Engineering, College of Forest and Environmental Science, Kangwon National University) ;
  • Choi, Kyoung-Hwa (Changgang Institute of Paper Science and Technology, Kangwon National University) ;
  • Cho, Byoung-Uk (Dept. of Paper Science & Engineering, College of Forest and Environmental Science, Kangwon National University)
  • 김아람 (강원대학교 산림환경과학대학 제지공학과) ;
  • 최경화 (강원대학교 창강제지기술연구소) ;
  • 조병욱 (강원대학교 산림환경과학대학 제지공학과)
  • Received : 2015.06.12
  • Accepted : 2015.06.19
  • Published : 2015.06.30
Download PDF
⟨ Previous Next ⟩

Abstract

In this study, effects of kneading treatment on the properties of hardwood bleached kraft pulp (HwBKP), softwood bleached kraft pulp (SwBKP) and hardwood bleached chemi-thermo-mechanical pulp (HwBCTMP) were elucidated with a laboratory two-shaft kneader. Kneading treatment was performed at 30% (w/w) of pulp concentration and the number of passes through the kneader was adjusted from 0 to 10 passes. Then, changes in properties of pulp fibers were evaluated. It was found that fiber characteristics were influenced by kneading treatment. Fiber length was decreased with kneading while other morphological properties such as fiber width, curl and kink became increased as the number of passes through the kneader increased from 0 to 5 passes. The magnitude of changes in the morphological properties of softwood chemical pulp was the largest, followed by hardwood chemical pulp. The morphological properties of HwBCTMP were little influenced by kneading treatment. Swelling of fiber measured by WRV was increased with kneading except of HwBCTMP.

Keywords

References

  1. Ono, H., Watanabe, M, Nonomura, F., and Nanri, Y., High-bulk, wood containing printing paper, US patent, US007404876B2 (2008).
  2. Nam, K., Chung, S. and Won, J. M., Effects of raw materials for papermaking and physical treatment on the pore structure and paper properties, Journal of Korea TAPPI 39(4):7-13 (2007).
  3. Nam, K., Chung, S. and Won, J. M., Effect of raw materials of the papermaking and physical treatment on the pore structure and properties of the paper, Proceedings of 2003 Fall Conference of the Korea TAPPI, 127-134 (2013).
  4. Sousa, G. D. A., Abreu, C. T., Amaral, J. L. and Bras, C., Office paper bulk optimization in a paper machine using multivariate techniques, O PAPEL, 72(8):50-55 (2011).
  5. Gwak, H. J., Lee, J. Y., Kim, C. H., Back K. K., Shin, J. H., Lee, H. J., Kim, S. H., Shim, S. Y. and Kang, H. Y., Improvement of paper bulk and properties using modified precipitated calcium carbonate (PCC), Proceedings of 2009 Fall Conference of Korea TAPPI, 313 (2009).
  6. Ikeda, Y., Ishibashi, Y., Tadokoro, T., and Takahashi, H., Paper bulking promoter, US patent, US 006576085B2 (2003).
  7. Sung, Y. J. and Keller, D. S., Evaluation of the changes in local paper structure and paper properties depending on the forming elements types, Journal of Korea TAPPI, 41(1):17-23 (2009).
  8. Eber, R. J. and Janda B. W., Multiple layer fibrous web products of enhanced bulk and method of manufacturing same, US patent, US005102501A (1992).
  9. Takashi O., Challenge to the development of bulky paper in NPI(Nippon Paper Industries Co. Ltd), Japan TAPPI Journal, 61(1), 50-53 (2007). https://doi.org/10.2524/jtappij.61.50
  10. Park, C. S., Lee, J. H., Kil, J. H. and Park, J. M., Change of dimensional stability and dip elongation of handsheets depending on wet pressing, Journal of Korea TAPPI 43(4):31-39 (2011).
  11. Lim, J. H., Chae, J. H., Park, C. S. and Park, J. M., Effects of refining and kneading of kraft pulp fibers on elongation and fracture toughness of paper, Journal of Korea TAPPI, 42(4):39-44 (2010).
  12. Chae, H. J., Park, J. M., Park, C. S. and Lim, J. H., Optimization of refining condition for fiber property throughout sub-kneading, Proceedings of 2010 Spring Conference of Korea TAPPI, pp. 304-310 (2010).
  13. Lee, J. H., Park, J. M., Changes of HwBKP, SwBKP, OCC handsheets' drying hehavior and physical properties by refining, kneading and wet pressing, Journal of Korea TAPPI, 43(5):17-26 (2011).
  14. Yiannos. P. N., Swellability of pulps determined by isopropanol retention, Tappi J. 48(9):494-496 (1965).
  15. Allender, B. M. and Waterhouse, J. F., Morphological Factors in the Refining of Eucalypt and Pinus radiata Fibers, Research Report by The Institute of Paper Chemistry (1986).
  16. Lehto, J. H., Characterisation of mechanical and chemical pulp fibres, 58th Appita annual conference and exhibition, Carlton, Australia (2004).
  17. Botkova M., Suty, S., Jablonsky, M., Kucerkova, L., and Vrska, M., Monitoring of Kraft pulps swelling in water, Cellulose Chem. Technol., 47 (1-2):95-102 (2013).
  18. Brancato, A. A., Effect of progressive recycling on cellulose fiber surface properties, Thesis for the Degree Doctor of Philosophy in the School of Chemical and Biomolecular Engineering, Georgia Institute of Technology (2008).
  19. Young, J. H., Pulp and Paper Chemistry and Chemical Technology, Casey, J. P.(ed.), Vol. 2, Wiley-Interscience Publication, New York, p. 850 (1981).
  20. Scott, W. E., Principles of Wet End Chemistry, TAPPI Press, Atlanta, USA, pp.33-43 (1996).
  21. Jaycock, M. J. and Pearson, J. L., Colloidal aspects of paper formation. Part 1: factors affecting the electrokinetic properties of cellulose fibers, Svensk Papperstidning, 78(5):167-171(1975).
  22. Jacquelin, G. and Bourlas, H., Measurement of the zeta potential of papermaking fibers: effects of preliminary treatments, Techniques et. Recherches Papertieres, 3:49-58(1964).
  23. Cho, B.-U., Ryu, J.-Y., and Song, B.-K., Improvement of ink and heavy metal removal from old corrugated container stock by alkali kneading, J. Ind. Eng. Chem. 18:697-701 (2012). https://doi.org/10.1016/j.jiec.2011.11.135

Cited by

  1. The Dual Effect of Ionic Liquid Pretreatment on the Eucalyptus Kraft Pulp during Oxygen Delignification Process vol.13, pp.10, 2015, https://doi.org/10.3390/polym13101600