PET Film Corona/Anti-Static Treated

Plastic films have become ubiquitous in countless industries due to their versatility, durability, and cost-effectiveness. However, their inherent low surface energy and hydrophobia can hinder their performance in printing, laminating, and coating applications. Corona treatment is a widely adopted surface modification technique that addresses these limitations by dramatically improving the surface properties of plastic films such as BOPP films, BOPET films, CPP films, etc.

Corona treatment is a non-chemical process that involves exposing a plastic film to a high-frequency, high-voltage electrical discharge. This discharge ionizes the air, creating a plasma bombing the film’s surface. The energetic particles from the plasma interact with the polymer molecules, causing oxidation, cross-linking, and the formation of polar groups. These changes result in a significant increase in surface energy and hydrophilicity.

product details

Benefits of Corona Treatment

Improved Wettability: The treated surface becomes more hydrophilic, allowing liquids to spread evenly and improve adhesion.

Increased Adhesion: The enhanced surface energy and roughness created by corona treatment promote stronger mechanical and chemical bonding with other materials.

Key Parameters and Factors

Voltage: Higher voltages generate more energetic plasma and produce more significant surface modifications.

Current: The current level influences the treatment intensity.

Treatment time: The duration of exposure affects the depth of the modified layer.

Electrode gap: The distance between the electrodes impacts the uniformity of the plasma discharge.

Film material and thickness: Different polymers and film thicknesses require varying treatment conditions.

Environmental factors: Temperature and humidity can affect the plasma discharge and treatment outcome.

Applications of Corona Treatment

1. Printing:Corona treatment is essential for achieving high-quality printing on plastic films. It improves ink adhesion, reduces dot gain, and enhances color reproduction.

2. Laminating:Corona treatment is crucial for creating strong bonds between plastic films and other materials during lamination processes. It ensures the durability and integrity of laminated products.

3. Coating:By increasing the surface energy, corona treatment facilitates the application of various coatings, such as anti-static, barrier, and adhesive coatings.

Package And Storage

Package:

25kg/carton drum or as your requirements.

Remark: Chemical composition and size can be optimized by the customers' requirements 固体1x01

Storage:

Keep container closed. Store in a dry place. Do not store at elevated temperatures. Keep from freezing. Do not reuse empty container.

Safety Protection

Precautions for safe handling

Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.