FIBERCARE® REFINING CASE STUDYRefining Quality Improvement & Refining Energy Reduction with FiberCare® on NCR Paper Production at Mill 4 Case Study 4Trial Situation Mill targets: Increase refining quality of hardwood • Increase refined fiber quality • Improve paper formation • Reduce refining energy Mill problem: Lower pulp quality of hardwoodTrial Situation Paper grade: 40g/m2 NCR base paper Machine speed: 380m/min Furnish: 80% bleached hardwood kraft pulp / 20% bleached softwood kraft pulp Enzyme treated pulp: Bleached hardwood kraft pulp Pulp and white water situation: •Pre-refiner Pulp : T = 44 °C, pH = 6 •Post-refiner Pulp: T = 45 °C, pH = 6 •White water: T = 36 °C, pH = 6Trial Situation Enzyme: FiberCare R Adding point: Pulper Enzyme dosage: 100g/t Enzyme treatment time: a

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