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
FAS bleaching (FAS) Formamidine sulphinic acid (FAS) is a low-odour crystalline reducing agent used in the bleaching of wood-containing pulp since the 1980s. A patent granted in 1983 1 proposes bleaching of mechanical pulp and recycled fibre pulp in a single-stage and two-stage process using FAS together with other bleaching chemicals. Since then, FAS has
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:
- Süss, H.-U. and Kruger, H., German Pat. DE 3,309,956 C1 (March 19, 1983).
- Kronis, J.D., Adding some colour to your wastepaper furnish, TAPPI 1992 Pulping Conference Proceedings, TAPPI PRESS, Atlanta, Vol. 1, p. 223.
- Daneault, C. and Leduc, C., Cellulose Chemistry Technology 28(2):205 (1994).
- Faul, A.M. and Eisenschmid, K., Wochenbl. Papierfabr. 119(1):1 (1991).
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This page has been updated 15.11.2021