Metsä Fibre, Botnia Nordic+ pulps

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Pulps with softer tissue and stronger performance. Tuomo Niemi's, Fibre Technology Manager at Metsä Fibre, presentation at Tissue World 2013.

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Metsä Fibre, Botnia Nordic+ pulps

  1. 1. Metsä Fibre19/3/2013 T. NiemiBotnia Nordic+Softer tissue,stronger performance
  2. 2. Metsä FibreTissue softwood pulp The recent development of tissue furnishhas been driven by a need to reduce theproportion of softwood pulp in order toimprove the softness of tissue products. The best softwood pulps show a combinationof high initial tensile strength and fast tensiledevelopment. Fast tensile strength development also helpsto reduce energy consumption both in refiningand drying. A low refining requirement facilitatesimproved paper softness and reducesdusting due to a lower level of fines.19/3/2013 T. Niemi
  3. 3. Metsä FibrePolysulfide as a solution – Botnia Nordic+ pulps Metsä Fibre will implement an advanced polysulfide pulping process at JoutsenoMill in 2013, thereby introducing an entirely new softwood pulp with improvedproperties to the market. The increased pulping yield will realise clear benefits for tissue making, due to thehigh content of hemicellulose (galactoglucomannan) in cell walls. The altered hemicellulose profile enhances the flexibility of fibre, thereby improvingtensile strength before and after creping. This enables furnish optimisation in tissuepaper manufacturing. The new process maximises yields when producing bleached softwood pulps.Part of the mill’s production will target the tissue market.19/3/2013 T. Niemi
  4. 4. Metsä FibrePolysulphide Pulping PS-cooking is an established method that waspatented back in the 1940s. The first millapplications began in the 1960s. PS-cooking liquor will be made at Joutseno Millby a commercial Moxy-process involvingcatalytic oxidation of white liquor. The Joutseno PS pulping process wasdeveloped at Metsä Fibre through intensiveand innovative research work. The new pulping process satisfiessustainability criteria with respect to bothenvironmental and resource efficiencyconsiderations.19/3/2013 T. Niemi
  5. 5. Metsä FibreImproved performance of Botnia Nordic+ pulps Polysulfide modification increases the hemicellulose content of pulps. This improvesthe performance of pulp in paper and board manufacturing processes. The current Botnia Nordic Pine and Strong grades have been compared to theestimated quality of Botnia Nordic Pine+ and Strong+ grades made using thepolysulfide process on a laboratory scale. Both qualities were simulated under the following constant parameters:Botnia Nordic Pine+ Botnia Nordic Strong+• Brightness: 89.0% 88.0%• Fibre length: 2.15mm 2.35mm• Raw material: Roundwood SW Saw mill chips SW19/3/2013 T. Niemi
  6. 6. Metsä FibreChanges in pulp characteristics19/3/2013 T. Niemi
  7. 7. Metsä FibreCase example – Furnish optimisation forsoftnessFurnish ratio Bulk TensileindexSoftnesspotential30% / 70%Botnia Nordic Pine / Cenibra Euca1.66 43.2 ref.15% / 85%Botnia Nordic Pine+ /Cenibra Euca1.66 43.2 ++19/3/2013 T. NiemiRefining SW 50 kWh/tonneHW 30 kWh/tonneSW/HW Pulp price ∆€ 60 => Saving potential: EUR 9/paper tonne!!
  8. 8. Metsä FibreSustainability – Less is more The new process enables pulp manufacturing using lesswood per tonne of pulp Wood consumption is also lower in HW pulp productionthan in SW When the HW content of the total furnish is increased from30/70 SW/HW to 15/85 SW/HW :‒ Overall wood consumption for one tonne of paper is reduced‒ This means consuming some 20,000m3less wood annuallyon a 60,000 tonne/a tissue machine The Metsä Fibre mill in Joutseno is CO2-neutral thanksto an internal bark gasification plant. The overall energyself-sufficiency of the facility is 170%19/3/2013 T. Niemi
  9. 9. Metsä FibreConclusions New Botnia Nordic+ pulps will have a high initial tensilestrength and fast tensile development in refining This allows furnish changes leading to significant costsavings and improved softness potential. Use of raw material in the total furnish will be more efficient,contributing to sustainability throughout the value chain Together with CO2-free pulp production and energy self-sufficiency, Botnia Nordic+ will make the Metsä Fibre millin Joutseno one of the world’s most advanced pulpmanufacturing facilities Botnia Nordic+ pulps will arrive on the European pulpmarket in mid 201319/3/2013 T. Niemi
  10. 10. Metsä Fibre19/3/2013 T. NiemiFIBRES OFSUCCESSWe are the proud winners of Excellence Finland 2012 and theQuality Innovation of the Year Competition in the largecompanies category, organised by Laatukeskus ExcellenceFinland. In addition, Laatukeskus Excellence Finland grantedMetsä Fibre the European five-star Recognised for Excellenceaward. Metsä Fibre won the Excellence Finland quality awardwith the highest ever total score.www.metsafibre.com

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