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Coldwater Starts up PCA Dryer Passivation System at U.S. Recycled Mill

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David Withers, president, announced this week that Coldwater, Atlanta, Ga., USA, has sold and completed the startup of another PCA Dryer Passivation System at a recycled mill in the Southwest U.S. 

The innovative PCA Dryer Passivation System has been installed on a 4.5 meter (176 in.) wide recycled paperboard machine that was experiencing significant build-up in the first section of dryers, especially on the dryer fabric and felt return rolls, which resulted in unscheduled downtime for cleaning. 

Coldwater’s PCA Dryer Passivation System was installed on an existing doctor blade holder (but can be mounted separately if needed) and includes a Kevlar application wick that applies a continuous and uniform metering of Coldwater’s PolyClean passivation agent to both the dryer cylinders and dryer fabrics. 
 
 

The PolyClean passivation agent prevents stickies from forming on the dryer surface and is transferred to additional dryers downstream, keeping those dryers clean as well. The PolyClean passivation agent is VOC-free and complies with the FDA for paper and paperboard in contact with aqueous and fatty foods. Plus, this system can be used on dryer felt rolls for dryer felt passivation. The PolyClean dosing unit can easily attach to the additive tote, requires minimal space, and includes a flow measurement monitoring unit, a dosing pump and a filter unit. 

After installation of the PCA System, the mill’s first dryer section now runs clean with no dust build-up and no build-up on the felt rolls or the dryer fabric. This has resulted in reduced picking and increased uptime with no required batch cleaning. 

Coldwater is a global leader and innovator in paper machine consumables and engineered products that optimize paper machine performance and reliability. Product lines include dryer and felt passivation, machine clothing cleaning systems, suction roll sealing components, doctor blades, Lantier doctoring equipment, Wilbanks ceramics, premium UHMW drainage elements, edge control systems, headbox parts and services, and combinations of the above in complete consumables optimization management programs.

Coldwater also has manufacturing facilities in Appleton, Wis., and Karlstad, Sweden, and sales offices in Spain and Thailand. More information is available online, or contact Doug Wall, VP of sales and marketing, 318-355-6930.

 

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