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KAPPA ANALYSIS WORLD PULPPAPER 71 Papermakers in an integrated kraft containerboard mill know very well they have to adapt their papermaking operations to compensate for incoming variations in Kappa number. Usually with manual Kappa testing they adjust refining levels and machine speeds to react to changes in drainage and drying rates to avoid web breaks and to maintain strength tests. However with some inherent human variability in testing plus potential time delays of over two hours machine tenders are BTGs online Kappa analyser at Green Bay Packagings Arkansas Kraft Division permits Kappa number and pulp yield increases plus improved runnability on the containerboard machines. By Mark Williamson Journalist Engineer Single point Kappa measurement gives double-sided savings ...machine tenders are always playing catch-up reacting to old tests runnability can suffer always playing catch-up and reacting to old tests with some extra testing variability that is built in. Machine runnability can suffer. Green Bay Packagings integrated kraft pulp and containerboard mill in Morrilton Arkansas has found a solution to this dilemma by investing in a BTG Single Point Kappa Analyser SPK-5500. This analyser serves a unique function since both pulp mill and paper mill operators value it and rely upon it to stabilise their operations and quality. It is difficult to think of another measurement that has that this double impact. As a result pulp mill operators have become better at controlling Kappa and have stabilised and increased its level and the pulp yield. Moreover the papermakers have adapted the operation of their machines based on real-time information. The result is a good ROI on both sides of the mill. The fibre line with five batch digesters feeds two Green Bay Packaging Arkansas Kraft Division