High Definition Corona for Converting

Which of the two corona discharges pictured (FIGURE 1) do you think produces better adhesion results? If you selected the smoother, higher density and more uniform corona you are correct. Enercon refers to this type of corona as High Definition Corona. And our unique treater design ensures your application of optimal treatment.

Ceramic Electrode Design

Ceramic electrodes are less sensitive to high operating temperatures than their metal counterparts. However not all ceramic electrodes are created equal. Enercon's "H" system relies on specially constructed ceramic electrodes featuring an extremely high dielectric constant with superior capability for high power densities. A unique cooling system acts as a temperature stabilizer which maximizes the electrodes operating capabilities. This cooling system also doubles as an ozone removal system. By applying 50% more power per square inch to each electrode higher treatment levels are achieved (See Figure 2). This can sometimes means that fewer electrodes are required to generate the same treatment level.

High Definition Corona

Standard Corona

FIGURE 1: Smooth and consistent high definition treatment translates into superior adhesion.

Figure 2: Comparative results show the effectiveness of high definition surface treatment
Pretreated BOPP Pretreated BOPP	Watt Density
Pretreated BOPP Pretreated BOPP	2	4	6
Conductive Ceramic Dynes	40	42	44
"H" System Dynes	44	48	52
Untreated BOPP	Watt Density
Untreated BOPP	2	4	6
Conductive Ceramic Dynes	36	37	37
"H" System Dynes	39	40	42

High performance corona treater ground roll

Heat buildup on the roll during the corona treating process is very destructive. As power levels increase so does the buildup of heat. Factors effecting the roll’s ability to dissipate heat is size of the roll and the material that covers the roll. A larger roll diameter mitigates the effect of heat by allowing a longer period of cooling between cyclic positioning under the electrode. Universal Roll Treater with Nip Point

An alternate solution is to use a ceramic coating. However, not all ceramic coatings are created equal. Unlike conductive ceramic roll systems, Enercon's "H" system features a proprietary ceramic blend formulation optimized for corona treating. It is extremely effective at withstanding the heat. This enables high treatment levels from a small machine footprint.

Additional application benefits include the system’s ability to handle challenging thin films. The High Definition Corona system virtually eliminates film wrinkling, puckering, pin holing and backside treatment. Adding to the system’s universal versatility is its ability to treat both conductive and nonconductive films without any system changeover requirements.

Converter’s best corona treater choice

Enercon's "H" system is a converter's number one choice because it delivers high performance treatment results on conductive and non-conductive materials, minimizes the chances of roll covering burnout and provides the industry's best insurance against pin holing, backside treatment and film wrinkling. Once you try Enercon's high definition treatment you won't settle for anything less.