corona discharge field of bare roll corona treater
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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 Engineer
Printing  ·  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.

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:

→ Advantage Bare Roll

Film Extrusion

Blown film, cast film, and extrusion coating lines. PE, PP, PET, and specialty films requiring inline treatment.

Recommended:

→ TNT Covered Roll

Lab, Sheet & Specialty

R&D testing, sheet-format materials, ultra-thin substrates, medical packaging, and custom applications.

Recommended:

→ DocuDyne Lab
→ Advantage Sheetfed
→ Vacuum Table

Not sure which system fits? Our engineers will match you to the right treater based on your substrate, line speed, and application.

Talk to an Engineer →