Wide Web Corona Treater

Corona treatment is an electrical surface modification process that enhances material adhesion. It operates by applying high-frequency, high-voltage energy to generate corona discharge, producing low-temperature plasma at the material surface. This plasma induces free radical reactions, leading to polymer crosslinking, surface oxidation, and polarization. Simultaneously, ion bombardment creates micro-scale roughness and improves wettability toward polar solvents. These combined effects significantly increase the surface energy and adhesion properties of the material.

Wide web corona machine: SM-X002

• Adjustable electrode gap (1–3 mm) for optimal performance and system protection
• High-voltage connections are separated from the ozone exhaust outlet to prevent corrosion of terminals
• German-imported ceramic electrodes ensure uniform discharge
• Easy maintenance with removable electrode cassette
• Can be integrated into production lines and synchronized via signal interface

Suitable for flexographic printing presses, laminators, rotary presses, rewinders, coating machines, extrusion coating lines, slitting machines, and extruders.

High-power corona treaters are also applicable in the new energy battery industry, supporting processes such as carbon coating.

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