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
Sheet characteristics Probably the most often quoted studies in the literature when discussing the influence of repeated drying and re-slushing on sheet properties are the experiments of Howard and Bichard.1 In that work, broke-like recycling without calendering was applied to various pulps. Pulp fines were recovered between cycles, and sheets were dried at room temperature.
Authors & references
Author:
Hans Putz
References:
- Howard, R.C. and Bichard, W., The Basic Effects of Recycling on Pulp Properties. J. Pulp Paper Sci. 18(1992) No. 4, p. J151–J159
- Alanko, K., Paulapuro, H., Stenius, P., Recyclability of thermomechanical pulp fibres. Paperi ja Puu – Paper and Timber, 77(1995) No. 5, p. 315–328
- Korpela, A., Kuitujen kierrätettävyys, Internal Report, KCL, Espoo, Finland, 1994
- Bouchard, J. and Douek, M., The effects of recycling on the chemical properties of pulps. CPPA 2nd Research Forum on Recycling, St. Adele, 1993
- Klofta, J. and Miller, M.L., Effects of deinking on the recycle potential of papermaking fibers. CPPA 2nd Research Forum on Recycling, St. Adele, 1993
- Chatterjee, A., Kortschot, M., Roy, D.N. and Whiting, P., Tear and fracture behavior of recycled paper. Tappi J. 76(1993) No. 7, p. 109–115
- Law, K. N., Valade, J. L. and Li, Z., Recycling behavior of thermomechanical pulp: effects of refining energy. Tappi J. 79(1996) No. 10, p. 181–186
- Erikson, I., Lunabba, P. and Petterson, A., Recycling potential of printed thermomechanical fibres for newsprint. CPPA 3rd Research Forum on Recycling, Vancouver, BC, 1995
- Bayer, R., Einfluß des mehrfachen Recyclings auf ausgewählte Eigenschaften von TMP und CTMP. Allg. Papierrundschau 120(1996) No. 27, p. 739–746
- Law, K.N., Valade, J.L. and Quan, J., Effects of recycling on papermaking properties of mechanical and high-yield pulps. Part I: Hardwood pulps. Tappi J. 79(1996) No. 3, p. 167–174
- Liebe, H., Einfluß des Papierherstellungsprozesses auf das Festigkeitspotential von ECF- und TCF-Zellstoff. M.Sc. Thesis, Technische Universität Darmstadt, Darmstadt, Germany, 1995
- 53 Horn, R. A., What are the effects of recycling on fiber and paper properties? Paper Trade J. 159(1975) No. 7/8, p. 78–82
- Göttsching, L. and Stürmer, L., Pysikalische Eigenschaften von Sekundärfaserstoffen unter dem Einfluß ihrer Vorgeschichte. Teil II: Einfluß des mehrfachen Recycling. Wochenbl. Papierfabr. 126(1978) No. 23/24, p. 909–918
- Nazhad M. M., Recycled Fiber Quality – A Review. J. Ind. Eng. Chem. 11(2005) No. 3, p. 314–329
- Dulemba, M., Qi, D. and Aravamuthan, R., The Effect of Repeated Drying and Wetting on Single Fiber Flexibility. Progr. Paper Recycl. 9(1999) No. 1, p. 38–45
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This page has been updated 16.11.2021