When working on a project that involves printing, coating, or laminating, engineers must be mindful of issues caused by poor adhesion and wettability. Any issue will be costly to both project itself and your company’s budget. The proper surface treatment of plastic film or foils will improve productivity and result in fewer rejects.

There are several surface treatment solutions available, but corona and plasma solutions are among the most commonly used today. By applying a high energy and high voltage discharge to a substrate, ink and adhesives will bond to surfaces more effectively. Corona treating improves the receptivity of challenging surfaces by breaking bonds at the molecular level; these broken bonds combine with free radicals—which are more receptive to inks and adhesives—resulting in enhanced adhesion.

RT Partners with Pillar Technologies

Pillar_TechnologiesCustomers of RT Engineering now have access to surface treatment technologies thanks to our partnership with Pillar Technologies. As the Northeastern U.S. representative for Pillar, RT offers diverse surface treatment systems designed to address specific challenges related to adhesion.

The VESRATreat Corona Treatment System provides support for many concerns related to high-speed web presses. The proprietary roll coverings deliver uniform distribution to a substrate, helping to eliminate issues such as backside treatment and heat seal delamination. Additionally, its discharge configuration is more stable and has higher energy levels than traditional systems.

Plasma surface treatment using the Protean Atmospheric Plasma Surface Modification System is effective for preparing difficult to treat materials. For applications where excessive static build up and surface contamination are prevalent, the Protean Atmospheric Plasma Surface Modification System is a better alternative. This solution’s combination of system dieletrics and gas chemistries remove static charge by exposing the material surface to a neutral charge; its low-voltage micro-discharge volatizes and vaporizes contaminants without affecting a substrate’s surface.

Companies continually look for methods to increase adhesion to polymer film using mineral additives such as polyethylene. Other inorganic additives, such as calcium carbonate, also aid in adhesion. However, using high concentrations of the additive can cause problems for traditional corona systems. The Dual Dielectric Corona Treatment System with its proprietary roll coverings minimizing the release of calcium carbonate during the treatment while expanding the treatment area.

RT Engineering is committed to strengthening our presence in the industrial surface treatment marketplace; with the help of Pillar Technologies, we can offer affordable, high-efficiency solutions to our entire customer base. As Pillar’s Northeastern U.S. representative, RT is more than capable of answering any questions related to extruded polymer film, coating, lamination, paper, metalized foil and textiles.