Other characteristics Sheet properties that depend on bonding ability such as modulus of elasticity and Scott bond (delamination resistance) have responded very logically in recycling experiments. They have increased with increasing sheet bonding and vice versa. The stiffness of sheets has declined consistently with all pulp types. According to paper physics, the resistance to bending
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Other characteristics
After reading this article you will..
- understand how some other characteristics of various pulp types may change during manifold recycling experiments.
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
Authors & references
Author:
Hans Putz
References:
- Göttsching, L. and Stürmer, L., Physikalische Eigenschaften von Sekundärfaserstoffen unter dem Einfluß ihrer Vorgeschichte. Teil III: Einflüsse der Papierherstellung (Zustand der Primärfaserstoffe, Hilfsstoffe, Blattbildung, Trocknung). Wochenbl. Papierfabrikat. 107(1979) No. 3, p. 69–76
- Hoppe, J. and Baumgarten, H.-L., Die Zukunft des Papiers im elektronischen Zeitalter – Papier auf dem Weg ins 3. Jahrtausend (Teil 1). Wochenbl. Papierfabr. 125(1997) No.18, p. 860–71
- Erikson, I., Lunabba, P. and Petterson, A., Recycling potential of printed thermomechanical fibres for newsprint. CPPA 3rd Research Forum on Recycling, Vancouver, BC, 1995
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This page has been updated 16.11.2021
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