Preserving Paper Machine Efficiency When Moving Towards New Paper Grades, 19PaperCon
As the market for paper and paperboard grades becomes more competitive, many mills are looking into market diversification and production of new grades with growth potential, while for many others cost reduction and lightweighting remains the key priority. Most of the mills are restricted to use their actual paper machine with minimal capital investment on equipment and rebuilds, thus paper machine efficiency becomes more critical. Reducing web breaks on paper machine and improving quality remain key priorities for these mills. A lot of work has been done on improving paper machine efficiency, but most of the research work focused on the defects and average paper strength properties. FPInnovations has been focusing on characterizing process variability and web uniformity and developed in-depth knowledge and unique diagnostic tools that have been used over the years to address paper machine efficiency and end-users runnability issues. This paper will first focus on describing what affects PM efficiency and product quality variability when mills move towards lighter grades or new grades. Troubleshooting techniques and some of the tools developed to understand the fundamental mechanisms behind PM efficiency issues will be discussed. Few field studies will be also presented to demonstrate how efficient troubleshooting on paper machine can provide optimal and low-cost solutions for improving paper machine efficiency.
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Preserving Paper Machine Efficiency When Moving Towards New Paper Grades, 19PaperCon
