Supercharged Cationic Polymer Reduces Cost in Competitive Market

GoalReduce program cost while addressing latex deposition problem.

<h6>Customer Challenge</h6> <p>A Midwest producer of coated freesheet was interested in reducing its costs and addressing latex deposition coming from its coated broke system.&nbsp; The latex deposits, which occurred primarily in the dryer section, led to sheet holes and defects as well as downtime due to sheet breaks and cleaning.&nbsp; The incumbent program was working but was very costly to the mill.</p> <h6>Recommended Solution</h6> <p>Solenis recommended PerForm PC8933, a supercharged cationic polymer, to act as a coated broke fixative.&nbsp; PC8933 is a high charge, low molecular weight, FDA approved emulsion that requires no make down equipment prior to feed.&nbsp; The recommended feed point was post coated broke screen prior to the tickler refiners at a dosage of 3 lbs/ton.</p> <h6>Results Achieved</h6> <p>Coated broke turbidities were significantly reduced with a 15% lower dosage and at a 35% lower cost compared to the incumbent program. Machine runnability was strong during the first four weeks of the trial with a 50% decrease in machine breaks.&nbsp; Defects, holes and contamination were decreased or maintained, depending on the grade.&nbsp; There was no noticeable change in charge in the system but retention ran slightly higher with the new broke treatment. The mill has permanently converted to the PerForm PC8933 program.</p> <p><img style="max-width: 100%; width: auto; height: auto;" src="/link/8ca55d5e1e304df3829282f768001d6f.aspx" alt="" width="2268" height="1283" /></p>