Effects of Kneading Treatment on the Properties of Various Pulp Fibers

Ah-Ram Kim; Kyoung-Hwa Choi; Byoung-Uk Cho

doi:10.7584/ktappi.2015.47.3.047

All Issue

2015 Vol.47, Issue 3 Preview Page Next Page

Effects of Kneading Treatment on the Properties of Various Pulp Fibers Kneading 처리가 다양한 펄프 섬유들의 특성에 미치는 영향

30 June 2015. pp. 47-54

PDF XML

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

Kneading

fiber properties

WRV

zeta potential, curl

kink

References

Literature Cited

H. Ono, M. Watanabe, F. Nonomura and Y. Nanri, High-bulk, wood containing printing paper (2008)

K. Nam, S. Chung and J. M. Won, Journal of Korea TAPPI, Effects of raw materials for papermaking and physical treatment on the pore structure and paper properties, 39(4); 7-13 (2007)

K. Nam, S. Chung and J. M. Won, Effect of raw materials of the papermaking and physical treatment on the pore structure and properties of the paperProceedings of 2003 Fall Conference of the Korea TAPPI; 127-134 (2013)

G. D. A. Sousa, C. T. Abreu, J. L. Amaral and C. Bras, O PAPEL, Office paper bulk optimization in a paper machine using multivariate techniques, 72(8); 50-55 (2011)

H. J. Gwak, J. Y. Lee, C. H. Kim, K. K. Back, J. H. Shin, H. J. Lee, S. H. Kim, S. Y. Shim and H. Y. Kang, Improvement of paper bulk and properties using modified precipitated calcium carbonate (PCC)Proceedings of 2009 Fall Conference of Korea TAPPI; 313 (2009)

Y. Ikeda, Y. Ishibashi, T. Tadokoro and H. Takahashi, Paper bulking promoter (2003)

Y. J. Sung and D. S. Keller, Journal of Korea TAPPI, Evaluation of the changes in local paper structure and paper properties depending on the forming elements types, 41(1); 17-23 (2009)

R. J. Eber and B. W. Janda, Multiple layer fibrous web products of enhanced bulk and method of manufacturing same (1992)

O. Takashi, Japan TAPPI Journal, Challenge to the development of bulky paper in NPI(Nippon Paper Industries Co. Ltd), 6(1); 50-53 (2007)

C. S. Park, J. H. Lee, J. H. Kil and J. M. Park, Journal of Korea TAPPI, Change of dimensional stability and dip elongation of handsheets depending on wet pressing, 43(4); 31-39 (2011)

J. H. Lim, J. H. Chae, C. S. Park and J. M. Park, Journal of Korea TAPPI, Effects of refining and kneading of kraft pulp fibers on elongation and fracture toughness of paper, 42(4); 39-44 (2010)

H. J. Chae, J. M. Park, C. S. Park and J. H. Lim, Optimization of refining condition for fiber property throughout sub-kneadingProceedings of 2010 Spring Conference of Korea TAPPI; 304-310 (2010)

J. H. Lee and J. M. Park, Journal of Korea TAPPI, Changes of HwBKP, SwBKP, OCC handsheets’ drying hehavior and physical properties by refining, kneading and wet pressing, 43(5); 17-26 (2011)

P. N. Yiannos., Tappi J, Swellability of pulps determined by isopropanol retention, 48(9); 494-496 (1965)

B. M. Allender and J. F. Waterhouse, Research Report by The Institute of Paper Chemistry, Morphological Factors in the Refining of Eucalypt and Pinus radiata Fibers (1986)

J. H. Lehto, Characterisation of mechanical and chemical pulp fibres58th Appita annual conference and exhibition, Carlton, Australia (2004)

M. Botková, S. Šutý, M. Jablonský, L. Kucerkova and M. Vrška, Cellulose Chem. Technol, Monitoring of Kraft pulps swelling in water, 47(1-2); 95-102 (2013)

A. A. Brancato, Effect of progressive recycling on cellulose fiber surface properties, Georgia Institute of Technology. (2008)

J. H. Young and (ed.) J. P. Casey, Pulp and Paper Chemistry and Chemical Technology, 2; 850, New York. Wiley-Interscience Publication. (1981)

W. E. Scott, Principles of Wet End Chemistry; 33-43, Atlanta, USA. TAPPI Press. (1996)

M. J. Jaycock and J. L. Pearson, Svensk Papperstidning, Colloidal aspects of paper formation. Part 1: factors affecting the electrokinetic properties of cellulose fibers, 78(5); 167-171 (1975)

G. Jacquelin and H. Bourlas, Recherches Papertieres, Measurement of the zeta potential of papermaking fibers: effects of preliminary treatments, Techniques et, 3; 49-58 (1964)

B.-U. Cho, J.-Y. Ryu and B.-K. Song, J. Ind. Eng. Chem, Improvement of ink and heavy metal removal from old corrugated container stock by alkali kneading, 18; 697-701 (2012)10.1016/j.jiec.2011.11.135

Information

Publisher :Korea Technical Association of The Pulp and Paper Industry
Publisher(Ko) :한국펄프종이공학회
Journal Title :Journal of Korea TAPPI
Journal Title(Ko) :펄프종이기술
Volume : 47
No :3
Pages :47-54
Received Date : 2015-06-12
Revised Date : 2015-06-18
Accepted Date : 2015-06-19
DOI :https://doi.org/10.7584/ktappi.2015.47.3.047

Journal of Korea TAPPI ISSN:0253-3200(Print) 펄프종이기술

All Issue

Literature Cited