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
Removal of dissolved and colloidal material As stated before, an increasing content of organic and inorganic dissolved and colloidal (DC) substances can have a negative influence on paper machine runnability and paper quality when fresh water use decreases. When trying to retain an increase of DC substances in the paper web, the substances fixed or
Authors & references
Author:
Hans Putz
References:
- Roring, A. and Wackenberg, E., Characterization of deinking white water: influence on flotation and bleaching efficiency: Water’s components affect both flotation and bleaching. Pulp Paper Can. 98(1997) No. 5, p. 17–21
- Eisenschmid, K. and Eckhart, H., Reinigung von Kreislaufwässern – Voraussetzung für den Einsatz deinkter AP-Stoffe in höherwertigen graphischen Papieren. Teil 1: Einsatz von Altpapier. Wochenbl. Papierfabr. 124(1996) No. 7, p. 265–271
- Stetter, A. and Eisenschmid, K., Maßnahmen zur Entlastung des AP-Kreislaufes. Wochenbl. Papierfabr. 125(1997) No. 5, p. 186–191
- Upton, B.H., Krishnagopalan, G. and Abubakr, S., Deinking flexographic newsprint: using ultrafiltration to close the water loop. Tappi J. 80(1997) No. 2, p. 155–169
- Diedrich, K., Hamm, U. and Knelissen, H.J., Biologische Kreislaufwasserbehandlung in einer Papierfabrik mit geschlossenem Wasserkreislauf. Das Papier 51(1997) No. 6A, p. V153–159
- Habets, L.H.A., Hooimeijer, A. and Knelissen, H.J., In-line biological process water treatment for zero discharge operation at recycled fibre board mills. Pulp Paper Canada 98(1997) No. 12, p. T504–T507
Videos
Exercises
This page has been updated 16.11.2021