Process design for board grades Most of the board grades are still virgin fibre based. These products have to combine high bending stiffness and ply bond with excellent optical appearance and printability. Folding Box Board (FBB) is typically used as packaging for high-value products like perfume or medicine. The main task of the packaging is
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Process design for board grades
After reading this article you will..
- be able to discuss why has pulping in board and packaging stock preparations has a much higher importance compared to graphical grades.
- know which process step typically produces the highest fibre loss in board and packaging stock preparations.
- know the positive and negative impacts of recirculation.
Content
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
Authors:
Falk Albrecht, Sebastian Schuster, Fanny Bader, Eckhard Gutsmuths
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This page has been updated 17.11.2021
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