Application of WCT (Wet Compaction Test) to Mixed Fiber Furnishes

Wet compaction test를 이용한 혼합지료의 적용

  • Seo Yung B. (Dept. of Forest Products, College of Life Science, & Agriculture, Chungnam National University) ;
  • Lee Chun Han (Dept. of Forest Products, College of Life Science, & Agriculture, Chungnam National University)
  • 서영범 (충남대학교 농업생명과학대학 임산공학과) ;
  • 이춘한 (충남대학교 농업생명과학대학 임산공학과)
  • Published : 2005.12.01

Abstract

WCT (Wet compaction test) is a new fiber evaluation method developed recently by Seo and its test results can be used as a predictor for pulp quality and its paper property Bleached chemical pulps (SwBKP, HwBKP), recycled pulp (OCC), and mechanical pulp (BCTMP) were used for the furnishes to be tested by WCT We compared the WCT results to conventional fiber evaluation tests such as WRV (Water Retention Value), free ness, and fiber length in this study, and found that WCT always gave better regression coefficients in relation to pulp quality (drainage), and paper properties (density, tensile, tear, and burst strength). WCT may be used on-line in papermachine.

Keywords

References

  1. Robertson, A. A., Pulp and Paper Mag. Can. 65(3):T161 (1964)
  2. Page, D. H., Sargent, J. W., and Nelson, R., In 'Transaction of the Cambridge Symposium,' 1965 (F. Bolam, Ed), p. 313 Tech. Section of the British Paper and Boardrnakers' Assoc., London, 1966
  3. Page D.H., El Hosseiny, F., Winkler, K. and Lancaster, A.P.S., Mechanical Properties of Single Wood Fibers Part V Elastic Modulus, Tappi J., 60(4):114-117 (1977)
  4. Hartler, N. and Nyren, J., Transverse Compressibility of Pulp Fibers. II. Influence of cooking method, Yield, Beating and Drying, Tappi J., 60(4): 114-117 (1977)
  5. Paavilainen, L., Conformability-Flexibility and Collapsibility- of Sulphate, Pulp paper Can., 83(2), T37-T41 (1982)
  6. Steadman, R. and Luner, P., 'The effect of wet fiber flexibility on sheet apparent density' in Papermaking Raw Materials Trans. Eighth Fundamental Research Symposium, Vol 1, p. 311-337, 1985
  7. Jones, R. L., 'An investigation of the effect of fiber structural properties on the compression response of fibrous beds.' Doctor's Dissertation. Appleton, Wis., The Institute of Paper Chemistry, 1962; Tappi 46, No. 1:20 (1963)
  8. Seborg, C. O., Simmonds, F. A. and Baird, P. K., Paper Trade J. 109(8):35-42 (1939)
  9. Seborg, C. O., Simmonds, F. A., Paper Trade J. 113(7):49-50 (1941)
  10. Seborg, C. O., Simmonds, F. A., Paper Trade J. 125(15):63-67 (1947)
  11. Dadswll, H. E. and Watson, A. J., Symposium on Formation and Structure of Paper, Oxford, End., Sept. 25-29 (1961)
  12. Stone, J. E., Scallan, A. M., and Abrahamson, B., Influence of beating on cell wall swelling and inter fibrillation. Svensk Papperstidn. 19(10):687-694 (1968)
  13. Stone, J. E and Scallan, A. M., The effect of commonent removal upon the porous structure of the cell wall of wood. IISwelling in water and the fiber saturation point. Tappi J. 50(10):496-501 (1967)
  14. Wahlstrom, P. B., The effect of water in the fiber wall in wet pressing. 44th Appita Annual General Conference, New Zealand, pp.A21.1-A21.24 (1990)
  15. 제지 과학, 이학래 외 6명 (1996)
  16. 서영범, '섬유특성과 지료조성 공정에 의한 종이 특성의 변화-섬유의특성' 한국펄프제지공학회, 제1회 제지기술자 교육(2001), pp 5-145
  17. Seo, Y.B., Choi, C.H., Seo S.W., Lee, H.L., Shin, J.H., Tappi J., 1(1): 8 (2002)
  18. Seo, Y.B., Shin, Y.C., Jeon, Y., Tappi J., 83(11):1 (2000)
  19. Lee, J.H., Seo, Y.B., and Jeon Y., J. of Korea TAPPI, 32(1): 10 (2000)
  20. Lee, J.H., Seo, Y.B., Jeon, Y., Lee, H.L., and Shin, J.H., J. of Korea TAPPl, 32(2): 1 (2000)
  21. Lee, J.H., Seo, Y.B., Jeon Y., Lee, H.L., and Shin, J.H., J. of Korea TAPPI, 32(2):8 (2000)
  22. Seo Y.B, Jeon. Y, Shin Y.C., Effect of mechanical impact treatment on fiber morphology and handsheet properties, Appita Journal. 55(11):8 (2002)