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pH and Consistency Control for Paper Machine Stock

Visit https://goo.gl/nk6Q9e to view the full video and purchase access to our other Paper courses. The main goal of a paper or board machine stock system is to consistently supply the desired mixture of fibers, fillers, chemicals, and water to the paper or board making process. As part of this goal, it is important to control two stock variables - pH and consistency. If either of these variables is outside its desired range, the sheet produced will not meet product specifications. Having good control of stock pH and consistency helps to produce the same quality sheet, day in and day out.