Water Quality Management and Stable Operation for Papermaking Wet End by Kurita S.sensing^® Technology

Abstract

Recent environment around paper industry has been changing, especially in regard to increasing paper recycle rate. It causes in fluctuation of furnish quality, that influence on machine running stability and paper product quality. In such a complicated situation, we focus on “water” used a lot in paper-making process to improve productivity. We report our new technology, “S.sensing^® system” to achieve it by stabilizing water quality. S.sensing^® system has three functions : monitoring, analysis and control. First, we monitor water qualities and accumulate machine running & paper quality information from customer. Second, we analyze the correlation among them. Third, we control water quality and achieve improvement on machine running stability and paper product quality.

In this report, we introduce the case study that defect on paper reduced by analysis correlation between water quality & defect causes then controlling water, and we linked the upstream side and the wastewater treatment process by our newly developed “S.sensing^® system”.