1 / 26

Wood-fibre for future products from pulp

Wood-fibre for future products from pulp. Paul Kibblewhite. Wood-fibre for papermaking The next 10 – 20 years. Fibre property interrelationships. Wall area  Coarseness Number  1/(wall area x length) Width/thickness = Fibre collapse (in dried sheet)

yin
Download Presentation

Wood-fibre for future products from pulp

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Wood-fibre for future products from pulp Paul Kibblewhite

  2. Wood-fibre for papermakingThe next 10 – 20 years

  3. Fibre property interrelationships Wall area  Coarseness Number  1/(wall area x length) Width/thickness = Fibre collapse (in dried sheet) Perimeter/wall thickness  1/(Wood density)  Collapse

  4. Softwood versus Hardwood fibres

  5. Furnish mix components • Softwood fibres for reinforcement, runnability and robustness • Hardwood fibres for bulk, surface & optical properties, and formation

  6. Eucalypt fibre selection for papermaking • Plantation-grown species, hybrids and clones • Short crop rotations at 5+ years • Chip density about 550 kg/m³ • High kraft pulp yield • Target fibre coarseness, length and collapse resistance • Target sheet bulk and tensile strength

  7. Globulus a premium eucalypt fibre-type

  8. Where to in short-term? • Conventional breeding and propagation technologies • Short crop rotations • High forest productivity and disease resistance • Emphasis on low cost, rapid propagation procedures, and screening tools • Genetic modification of lower priority

  9. Softwood fibre-types

  10. Softwood pulp uniformity by fibre-type

  11. Northern is the premium softwood fibre-type • Low coarseness • long and slender • High number • Low MFA • High hemicelluloses • Low refining energy • Long crop rotations

  12. Northern fibre-type from radiata pineHow Do? • Wood/chip segregation • Pulp fractionation • Conventional breeding, hybridisation and cloning • Genetic modification

  13. Market kraft categories through wood/chip segregation

  14. “Rods and Ribbons”Pulp fractionation by fibre collapse

  15. Breeding for fibre quality Select for Low Fibre Coarseness while retaining or increasing Density and Length

  16. CoarsenessWood-fibre number

  17. Radiata pine fibre improvements in the short-term Wood/chip segregation • Further advances limited Pulp fractionation by fibre collapse • Yet to be achieved Genetic modification, and breeding for low coarseness • Pulp mill is a residue user • “Change” required for pulpwood regimes and fibre quality improvement

  18. Pulp-fibre for papermaking 50 years on!Who Knows? Today’s commodities • Tissue, sanitary and packaging products, possibly OK • Junk-mail, newsprint, communication and hard-copy, probably limited? Today’s specialty cement reinforcement pulp?

  19. Wood-fibre for future bio-products from pulp:A 50-year horizon

  20. Softwood and Eucalypt-type pulp-fibre 50 years on • Short rotation pulpwood regimes (5 – 10 years) • Highly uniform fibre property populations • Earlywood- and latewood-type pulps • Wide range of chemical and physical fibre-property combinations

  21. Many possible fibre property combinations1. Separate EW & LW fibre populations

  22. 2. Low or high coarseness rod-like fibre populations

  23. 3. Four plus fibre-property combinations for future products from pulp

  24. Fibre property combinations Designer fibres through Purpose-grown, short-rotation crops for Sustainable designer products

  25. Fibre-property-combination research Genetic modification A critical success requirement • Assay procedures to screen genotypes at the plantlet stage (3 months?)

  26. Back to Reality! Who pays? • Fibre-property-combination research and development • Product identification processes • Fibre property combination selection and supply • Product development Constraints • Costs • Sustainability, and product- and market-driven • Green-house effect

More Related