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Wood-fibre for future products from pulp Paul Kibblewhite.

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Presentation on theme: "Wood-fibre for future products from pulp Paul Kibblewhite."— Presentation transcript:

1 Wood-fibre for future products from pulp Paul Kibblewhite

2 Wood-fibre for papermaking The next 10 – 20 years

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

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 pine How 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 combinations 1. 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

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