Limitation of Fiber Fractionation-Refining Process to Improve Paper Strength Using Recycled OCC Pulp
The linerboard is produced by several plies derived from various pulps. When it is manufactured from pulp of virgin fibers and from pulp containing recycled fibers, it is usually called kraftliner and testliner, respectively. The medium is a single ply product with a fluted (wavy) structure and is sandwiched between two linerboards to form the corrugated board for boxes. The corrugated container has a long history of recycling for many years. The major problem of recycling old corrugated container (OCC) is the decrease of recycled pulp strength. The fractionation of recycled pulp has a potential to upgrade the supplying fibers to enable the production of higher paper grades providing better formulation. One proposed process is to fractionate the recycled OCC pulp into long and short fibers. And the long fibers are refined and recombined with short fibers to be a new stock. However, the results obtained are different among authors as follows [1, 2, 3, 4].
KeywordsEnergy Saving Short Fiber Secondary Fiber Paper Strength Virgin Fiber
Unable to display preview. Download preview PDF.
- Musselmann, W. “Fractionation of fibrous stock, secondary fiber recycling”, Atlanta, USA, TAPPI Press (1993).Google Scholar
- Nazhad, M. M. and Awadel-Karim, S. “Limitations of fractionation on upgrading OCC pulp”, International Paper Physics Conference Proa, San Diego, USA, (1999) 191.Google Scholar
- Sloane, C. M. and Weinberg, G. R. “Product Development & Process Options for Secondary Fiber Liners”, 55th Appita Annual Conference, Hobart, Australia (2001) 501.Google Scholar
- Kaminski, D. F. “Best practices in fiber fractionation among United States recycled OCC mills”, Recycling Symposium, Chicago, USA, TAPPI Press (1997) 483.Google Scholar
- Abubakr, S., Scott, G and Klungness, J. “Fiber fractionation as a method of improving handsheet properties after repeated recycling”. Recycling Symposium, Boston, USA, TAPPI Press (1994) 309.Google Scholar