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CORONA TREATMENT APPLICATIONS
Corona Treatment for Every Converting Process
From flexible film extrusion to narrow web label printing, corona treatment is the critical step that ensures inks, coatings, adhesives, and laminates bond reliably to polymer substrates. QC Electronics builds treaters matched to your exact application.
Find Your Application → Talk to an EngineerPrinting · Coating · Laminating · Blown Film · Cast Film · Labels · R&D · Medical · specialty
INDUSTRIES WE SERVE
Find Your Application
Every QC corona treater is custom-configured for your specific process. Select your application to see recommended equipment and how corona treatment solves adhesion challenges in your industry.
MOST COMMON
Printing & Labeling
Flexographic, rotogravure, and digital printers use inline corona treatment to achieve reliable ink adhesion on PE, PP, PET, and other film substrates. Eliminates print defects caused by low surface energy.
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Coating & Laminating
Extrusion coaters and laminators rely on corona treatment to create strong bonds between polymer coatings, adhesives, and multi-layer film structures at high line speeds.
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Blown & Cast Film Extrusion
Film manufacturers integrate corona treaters directly at the extrusion line to deliver pretreated PE, PP, and specialty films — ensuring downstream converting processes start with adequate surface energy.
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Narrow Web
Tag and label presses demand precision corona treatment in compact spaces. QC narrow web treaters integrate seamlessly into any press configuration for consistent ink adhesion on flexible substrates.
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Research & Development
Lab-scale corona treaters that replicate production watt densities for substrate testing and process validation. Determine optimal treatment parameters before committing to full-line equipment.
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Specialty & Custom
Ultra-thin substrates and unique material requirements. Custom-engineered corona treatment solutions for applications that don’t fit a standard configuration.
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SUBSTRATES WE TREAT
Corona Treatment Works on Nearly Any Material
If your process bonds to a polymer surface, corona treatment can improve adhesion. Here are the most common substrate categories we treat.
01
Flexible Films
PE, PP, PET, nylon, BOPP, and specialty films for packaging, labeling, and industrial applications.
02
Rigid Plastics
Sheets and corrugated plastics requiring surface treatment before printing, coating, or bonding.
03
Paper & Paperboard
Coated and uncoated papers and specialty paper substrates for enhanced ink and coating adhesion.
04
Foils & Metals
Aluminum foil, metallized films, and thin-gauge metal substrates for packaging and industrial converting.
05
Nonwovens & Textiles
Spunbond, meltblown, and woven fabrics for medical, hygiene, filtration, and industrial applications.
06
Rubber & Elastomers
Rubber sheets, silicone, and elastomeric materials requiring surface modification for bonding or printing.
HOW IT WORKS
What Does Corona Treatment Do?
Corona treatment increases the surface energy of low-energy substrates so that inks, coatings, adhesives, and laminates bond properly. Here’s the process in three steps.
01
High-Voltage Discharge
The corona treater generates a high-voltage electrical discharge between an electrode and a grounded roll, creating a corona field across the web surface.
02
Surface Modification
The corona discharge breaks molecular bonds on the substrate surface and introduces polar functional groups—raising the surface energy measured in mN/m or dynes/cm.
03
Reliable Adhesion
With adequate surface energy, inks, coatings, adhesives, and laminates wet out evenly and bond permanently—eliminating adhesion failures downstream.
MATCHED TO YOUR PROCESS
Recommended Equipment by Application
Not sure which treater fits your process? Here’s what we typically recommend for each application type.
Converting & Printing
Flexographic printing, laminating, and coating applications. Any converting applications that run metallized substrates.
Recommended:
Film Extrusion
Blown film, cast film, and extrusion coating lines. PE, PP, PET, and specialty films requiring inline treatment.
Recommended:
Lab, Sheet & Specialty
R&D testing, sheet-format materials, ultra-thin substrates, medical packaging, and custom applications.
Recommended:
Not sure which system fits? Our engineers will match you to the right treater based on your substrate, line speed, and application.