How Management of Mill Process Water Impacts Colloidal Stability, 2012 PaperCon Conference

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Good colloidal stability in the mill process water can be related to good paper machine runnability. While it may be commonly observed that colloidal stability is important the means used to measure colloidal stability and how water management impacts colloidal stability and behavior is not so common. Using results from measurement of colloidal organics over time in the mill process water this review will show how this measurement can be related to runnability issues due to deposits and colloidal stability. Examples from paper machines using virgin and recycle fiber to produce newsprint, tissue and “printing and writing” grades of paper are given to help illustrate why it is important to understand colloidal stability and to show just what it means to have colloidal stability in your mill process water circuits.