Atlanta, Georgia, USA 27 September 2016 -- Coldwater announced that it has sold and completed the start-up of another PCA Dryer Passivation System at a board mill in the Southwest U.S.

The innovative PCA Dryer Passivation System has been installed on a 4.5 meter (176 inch) wide wall board 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 sheet breaks, uneven moisture profiles and 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 improved sheet profile, reduced picking and increased uptime with no required batch cleaning.