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

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

Mechanical Impact Treatment on Pulp fibers and Their Handsheet Properties

  • Yung B. Seo (Department of Forest Products, College of Agriculture, Chungnam National University) ;
  • Kim, Dukki (Department of Forest Products, College of Agriculture, Chungnam National University) ;
  • Lee, Jong-Hoon (Department of Forest Products, College of Agriculture, Chungnam National University) ;
  • Yang Jeon (Department of Forest Products, College of Agriculture, Chungnam National University)
  • Published : 2002.12.01
Download PDF
⟨ Previous Next ⟩

Abstract

Alternative way of shaping fibers suitable for papermaking was introduced. Impact refining, which was done simply by hitting wet fibers with a metal weight vertically, was intended to keep the fibers from shortening and to cause mostly internal fibrillation. Virgin chemical pulp, its recycled one and OCC were used in the experiment. It was noticed from the experiment that impact refining on virgin chemical pulp kept the fiber length and increased bonding properties greatly. However, in the recycled fibers from the chemical pulp, fiber length and bonding properties were decreased. In OCC, which seems to contain fractions of semi-chemical pulp and mechanical pulp (GP), and which is recycled pulp from corrugated boxes, fiber length and bonding properties were decreased disastrously. We believe recycled cellulosic fibers (recycled chemical pulp and OCC in this case), which went through hornification, were less resistant to the mechanical impact than virgin chemical pulp. For virgin chemical pulp, impact refining allowed no significant fiber length shortening, high WRV, and high mechanical strength.

Keywords

References

  1. Materials Interactions Relevant to the Pulp, Paper, and Wood products Fiber quality factors in papermaking - Ⅰ. The importance of fiber length and strengh Seth, R. S.;D. F. Caulfield(ed.)(et al.)
  2. TAPPI J. v.72 no.4 The effect of pulp fiber properties on the tearing work of paper Karenlampi, P. P.
  3. Papermaking Raw Materials v.1 Mechanical treatment of pulp fibers for paper property development Hartman, R. R.
  4. Fundamentals of Papermaking v.1 The effect of refining on wet fiber flexibility and relationship to sheet properties Abitz, P.;Luner, P.;C. F. Baker(ed.);Punton(ed.)
  5. Ph. D. thesis, Victoria University of Manchester Steadman, R. K.
  6. Svensk Papperstid v.88 no.3 Mechanism of Strength Development of dried pulps by beating Page, D. H.
  7. Papermaking Raw Materials v.1 Curl, crimps, kinks and microcompressions in pulp fibers Page, D. H.;Seth, R. S.;Jordan, B. D.;Barbe, M. C.;V. Punton(ed.)
  8. Pulp and Paper Mag. Canada v.67 no.Dec. The mechanical modification of papemaking fibers Tasman, J.E.
  9. Papermaker Conference Proceedings v.Book 1 Good practice for refining the type of fiber found in modern paper furnishes Baker, C. F.