While there are a number of common chemical methods used to control pitch and stickies deposition, none to date have been able to simultaneously address two or more of the parameters that influence deposition.  However, with the recent introduction of Ashland’s DeTac® pitch and stickies control technology, this has changed.

Product Overview

DeTac® pitch and stickies control technology comprises a family of patented organic contaminant control products for stock treatment.  Designed for use in tissue, packaging, and printing and writing grades, the technology combines the benefits of a detackifier and a stabilizer to simultaneously address multiple deposition parameters, thereby significantly reducing or eliminating the potential for pitch and stickies deposition.  In fact, results recorded from practical applications of the technology confirm that it is considerably more effective at controlling deposition than any other commercially available technology.

Mode of Action

DeTac® products are formulated with a natural polymer that utilizes a unique hydrophobic and hydrophilic design to detackify colloidal material.  The polymer adsorbs onto the colloidal material, enhancing stability and modifying the contaminant surface to reduce adhesion.  This not only prevents deposition but also significantly improves sheet quality and machine runnability.

Features

The major features of DeTac® pitch and stickies control technology are as follows:

< 0.035% VOCs per EPA Method 24
No APEs/NPEs or SARA 313 components
No components listed on California’s Proposition 65
FDA approved for dry, aqueous and fatty food contact applications per
CFR 176.170
Complies with BfR XXXVI Recommendation
Shelf life > 120 days
Effective at all papermaking temperatures, pHs, and conductivity levels

Benefits

The following benefits were recorded from practical applications of DeTac® pitch and stickies control technology.  Not all benefits are realized for all applications.

Eliminated/reduced deposition
Fewer breaks, holes, and sheet defects
Improved machine efficiency
Decreased downtime for cleaning
Decreased usage of VOC containing cleaning chemicals
Improved converting performance
No interference with wet end additives
No negative effect on process variables