Recycled fibre
- Legislation
- Sources and quality of paper for recycling
- Recyclability of paper and board products – Deinkability
- Recycling versus recyclability
- Technical aspects of recycling
- Relevance of recyclability
- Repulpability and deinkability
- Deinkability test methods
- EPRC deinkability assessment
- Deinkability of different printed products
- Removability of adhesive applications
- EPRC assessment on removability of adhesive applications in graphic paper products
- Unit operations and equipment in recycled fibre processing
- Design of processes
- Design principles for stock preparation processes
- Process design for graphical grades, news print
- Process design for tissue
- Process design for board and packaging grades
- Reject and Sludge handling for graphical and tissue applications
- Reject and Sludge handling for board and packaging applications
- Water management
- Additives
- Deinking
- Bleaching of deinked pulp
- Process water treatment
- Sticky control – detackification
- Enzymatic solution for recycled fibres
- Papermaking potential of recycled fibre
- Differences between virgin and recycled fibre
- Repeated (manifold) recycling experiments
- Multiple papermaking with recycled fibres
- Modelling of fibre age distribution
- Special request of recycled fibre furnish in papermaking
- Effects of recycled fibre in papermaking
- Challenges of increased recycled fibre utilisation
Fixation and other stickies control options The term “fixation” generally implies the binding of small particles to pulp fibres. Part of these small particles with a size between about 1 and 50 µm are also stickies. The main aim of fixation is the reduction of anionic trash in the white water circuit to prevent uncontrolled
Authors & references
Authors:
Roland Pelzer, James G. Tausche, Dr Jianhu Ma; Manuel Fuzy, Joerg Polste
Based on: Papermaking Science and Technology, book 7, Recycled fibre and deinking, Höke U. and Schabel S. (Book editor). Chapter 7 Additives. Jyväskylä, 2000, Fapet Oy. More references can also be found in this chapter.
References:
- Esser, A., Blum, R., Kuhn, J. and Leduc, M. 2004. New Developments in the field of trash reduction with polyvinylamides. In: Wochenblatt für Papierfabrikation No. 10 .
- Baumann, P., Esser, A., Rübenacker, M. and Kuhn, J. 2002. Optimized use of fixatives for production increase. In: PTS Symposium Chemical Technology in Paper Making, Munich.
- Wortley, B.H. 1987. The role of alum in acid, neutral and alkaline papermaking. In: TAPPI Advanced Topics Wet End Chemistry Seminar Notes, TAPPI Press, Atlanta, p. 55.
- Laufmann, M. and Hummel, W. 1991. Neutral wood containing paper production. In: Wochenblatt für Papierfabrikation 119(8):269.
- Neimo, L. 1993. Coagulation of anionic fines and colloids originating in LWC broke. In: Nordic Pulp Paper Res., J. 8 (1):170.
- Rebarber, E.S. 1995. How to avoid white pitch and its many pitfalls In: TAPPI Journal 78(5):252.
- Faber, W. 2007. Aluminiumnitratsulfate — Experience with an innovative Additive for stickies and trash elimination. In: PTS Stickies-Seminar, Conference Book, Dresden.
- Kröhl, T., Lorencak, A., Gierulki, H. Eipel, H. and Horn, D., 1994. A new laser- optical method for counting colloidally dispersed pitch. In: Nordic Pulp Paper Res. J., 9(2):125.
- Hentzschel, P. 1991. Lab study about simulation and oppression of polymer aggregates (white pitch) when using coated broke. In: Wochenblatt für Papierfabrikation, 119 (15):569.
- Von Seyerl, J. and Beck, F. 1993. Reuse of coating colours and coated broke – Observation concerning trash abolition In: Wochenblatt für Papierfabrikation, 121 (9):344.
- Allen, L.H. and Filion, D. 1995. A laboratory white pitch deposition test for screening additives. In: TAPPI Papermakers Conference, Chicago, p. 539.
- Mönch, D., Stange, A., Linhart, F. 1996. Advanced product concepts for trash removal and efficiency increase in paper production. In: Wochenblatt für Papierfabrikation, 124 (20):889.
- Gercke, M., Kannegießer, D., Scholz, R. and Arnold, J. 1997. Optimal application of process chemicals — new possibilities for process optimisation. In: Wochenblatt für Papierfabrikation 125(9):452.
- Gill, R.I.S. 1996. Chemical control of deposits — scopes and limitations. In: Paper Technology, 37(6):23.
- McKinney, R.W.J. and Currie, P.C.G.1986. Sticky pacification — new additive shows considerable promise. In: TAPPI Papermakers Conference Proceedings, TAPPI Press, Atlanta, p.161.
- Wade, D.E. 1990. Sticky pacification with synthetic pulps. In: Recycling Paper: From Fibre to Finished Product (M.J. Coleman, Ed), Vol. 2, TAPPI Press, Atlanta, p.536.
- Hamann, A. 2003. Research of depositing behaviour of tacky contaminants during paper production from recovered paper. In: Dissertation, TU Darmstadt, Institute of Macromolecular Chemistry.
- Sykes, M., Klungness, J., Gleisner, R., and Abubakr, S. 1998. Stickie removal using neutral enzymatic repulping and pressure screening. TAPPI Proceedings Recycling Symposium, New Or-leans, LA. TAPPI, Atlanta, GA.
- Seifert, P. 2005. Enzymes — A new effective solution of advanced stickies elimination. In: PTS Stickies Seminar, Dresden.
- Hoekstra, P.M. and May, O.W. 1987. Developments in the control of stickies. In: TAPPI Pulping Conference Proceedings, TAPPI Press, Atlanta, p. 573.
- Elsby, L.E. 1986. Experiences from Tissue and Board production using stickies additives. In: TAPPI 1986 Pulping Conference Proceedings, TAPPI Press, Atlanta, p. 445
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This page has been updated 16.11.2021