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Andritz’s long-term experience with Sack Kraft Refining has led to several significant process enhancements. Higher Tensile Energy Absorption (TEA) at higher Air Permeability are two key quality targets for sack paper producers. Andritz technology achieves these targets through higher refining consistency, which is ensured by the Andritz Twin Wire Press. A unique shredder following the Twin Wire Press ensures uniform feeding of the refiner and a constant refiner load. This helps achieve the pulp strength targets at a higher freeness level.
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