Corona Roller plays a key role in modern industrial production. It is mainly used to increase the surface energy of plastics, metals and other materials to enhance their adhesion properties. The application of corona rollers is extremely wide and crucial in different industrial fields.

This article will discuss in detail the basic principles and specific applications of corona rollers in various industries, and analyze why these industries need to use corona rollers.

What is the basic principle of corona roller?

A corona roller is a device that generates corona discharge through high-voltage electrodes to increase the surface energy of materials. When the material passes through the corona roller, the high-voltage electric field forms a corona discharge on the surface of the material, causing an oxidation reaction on the surface of the material and increasing the polarity and energy of the surface. This process can effectively improve the surface properties of the material, making it easier to combine with other materials or coatings.

The main functions of corona roller:

1. Improve surface energy: Corona treatment can significantly increase the surface energy of materials and enhance their adhesion.

2. Improve coating adhesion: The material surface after corona treatment is easier for coating and adhesive to adhere.

3. Increase surface activity: Corona treatment increases the surface activity of the material and improves the effect of subsequent processing.

4. Wide applicability: Corona rollers are suitable for a variety of materials, including plastics, metals, paper, and textiles.

Which industries need to use Corona Roller?

Industries that need to use corona rollers: packaging industry, printing industry, electronics industry, automotive industry, medical industry, construction industry, etc.

1. Packaging industry:

The packaging industry is one of the most widely used fields for corona rollers. Whether it is plastic film, metal foil or paper material, corona treatment can significantly increase its surface energy and improve printing and bonding effects.

● Plastic film: When producing plastic packaging films, corona rollers are used to improve the adhesion properties of the film surface, making it easier to combine with inks, coatings and adhesives, thereby improving the printing quality and sealing performance of the packaging.

● Metal foil: When producing aluminum foil and other metal packaging materials, corona treatment can improve the adhesion of the metal surface, enhance its bonding with coatings and adhesives, and ensure the reliability and durability of packaging materials.

● Paper materials: When producing paper packaging materials, corona treatment can improve the adhesion properties of the paper surface, improve its printing effect and coating quality.

2. Printing industry:

The printing industry has extremely high requirements on the adhesion properties of material surfaces. The application of corona roller can significantly improve the surface energy of printing materials and improve the adhesion effect of ink and coating.

● Plastic printing: During the printing process of plastic films, labels and packaging bags, corona treatment can improve the adhesion of ink and ensure the clarity and durability of printed patterns.

● Paper printing: In the production process of paper printed matter, corona treatment can improve the adhesion effect of ink and improve the quality and stability of printed matter.

● Metal printing: During the printing process of metal labels and signs, corona treatment can enhance the bonding force between the ink and the metal surface, ensuring the durability and aesthetics of the printed pattern.

3. Electronics industry:

In the manufacturing process of electronic products, many components and materials require corona treatment to improve their surface adhesion properties and processing effects.

● Flexible circuit board: Flexible circuit board (FPC) usually uses plastic substrate. Corona treatment can improve the adhesion performance of the substrate surface and ensure the firm combination of the conductive film and the protective layer.

● Display screens: In the production process of liquid crystal displays (LCDs) and organic light-emitting diode displays (OLEDs), corona treatment can improve the adhesion effect on the surface of the substrate and ensure the firm bonding of each layer of materials.

● Electronic tags: In the production process of RFID tags and other electronic tags, corona treatment can improve the adhesion performance of the substrate surface and ensure reliable bonding of electronic components and antennas.

4. Automobile industry:

The automotive industry has extremely high performance requirements for materials, and many components require corona treatment to improve their surface adhesion and durability.

● Automotive interiors: When producing automotive interior parts such as dashboards, seats and door panels, corona treatment can improve the adhesion properties of plastics and textile materials, ensuring a strong bonding of coatings, adhesives and facing materials .

● Automobile exterior decoration: When producing automobile exterior decoration parts (such as body panels, bumpers and lights), corona treatment can improve the adhesion effect on the material surface, improve the binding force of coatings and adhesives, and enhance the exterior decoration. The durability and aesthetics of the piece.

● Automotive electronics: When producing automotive electronic components (such as sensors, displays and control modules), corona treatment can improve the adhesion properties of the substrate surface and ensure a strong bond between the electronic components and the protective layer.

5. Medical industry:

The medical industry has extremely high requirements on the adhesion properties and surface quality of materials, and many medical devices and packaging materials require corona treatment.

● Medical devices: When producing medical devices (such as catheters, syringes, and surgical tools), corona treatment can improve the adhesion properties of plastic and metal materials, ensure the strong bonding of coatings and adhesives, and enhance the durability and safety of the devices sex.

● Pharmaceutical packaging: When producing pharmaceutical packaging materials (such as medicine bottles, medicine boxes and medicine bags), corona treatment can improve the adhesion properties of packaging materials, ensure the clarity and stability of printed patterns and labels, and enhance the sealing performance of packaging and anti-counterfeiting.

6. Construction industry:

In the construction industry, many building materials and decorative materials require corona treatment to improve their surface adhesion properties and processing effects.

● Architectural membrane materials: When producing architectural membrane materials (such as waterproof membranes, thermal insulation films and decorative films), corona treatment can improve the adhesion properties of the membrane surface, ensure the firm combination of coatings and adhesives, and enhance the membrane materials. of durability and functionality.

● Architectural coatings: When producing architectural coatings (such as wall coatings, floor coatings and roof coatings), corona treatment can improve the adhesion of the coating and improve the durability and aesthetics of the coating.

● Decorative materials: When producing building decoration materials (such as plastic sheets, metal sheets and composite materials), corona treatment can improve the adhesion properties of the material surface, ensure the firm combination of coatings and adhesives, and enhance the service life of decorative materials. and aesthetics.

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