What is corona surface treatment and what can it do for you?

Corona Treatment and Surface Modification

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Corona Treatment and Surface Modification

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What is CoronaTreatment?

Corona is a visible electrical discharge which occurs when a high voltage, high frequency electrical potential is applied to a small diameter electrode in relatively close proximity to an electrical ground. The resulting electrical discharge is known as a "Corona Discharge". This corona discharge will cause partial ionization of the surrounding atmosphere and can be used for surface modification.

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How does Corona Treatment work?

To obtain good adhesion to materials that have a low surface energy i.e. low or non-polar materials like PP, PE, HDPE etc. we create a high voltage, high frequency electrical discharge or corona discharge in close proximity to the part to be treated. This high energy corona discharge is attracted to the material severing the molecular bonds on the surface. These severed bonds are now free to attach to free radicals and other particles that exist in the highly active corona discharge environment. The resulting formation of additional polar groups on the material surface have a strong chemical attraction to inks, paint, coatings, adhesives etc. leading to significantly enhanced surface energy and therefore adhesion.

What Corona Treatment can do for you.

Dyne Technology supplies Corona Treatment solutions to improve the surface energy of plastic and rubber parts prior to the application of paints, printing inks, adhesives, coatings, sealants etc. Corona surface modification equipment is widely used throughout a diverse range of industries and onto an ever increasing list of substrates. Our growing list of customers includes many in the following industries: medical, automotive component, electronics, electrical cable, extrusion, ophthalmic lenses, pipes, tubes and many more. Through our many years of experience and continuous product development we have become one of the leading suppliers of Corona Surface Modification equipment.

Components processed:
• Conductive & non-conductive narrow webs
• Electrical cables
• Pipes & Tubes
• Medical devices
• Automotive components.
• Board & Foam
• 3D parts
• Extruded profiles
• Domestic appliances
And many more..

Modification prior to:
• Bonding/Gluing
• Coating
• Laminating
• Labeling
• Painting
• Flocking
• Printing
• Sealing
• Over moulding
• Gasketing
And many more...

Industries served
• Automotive
• Manufacturing
• Injection moulding
• Extrusion
• Electrical
• Medical device manufacture
• Research establishments
• Universities
• R&D Departments / Test labs
• And many more....

Materials processed
• PP
• PEEK
• PA
• TPE
• PC
• PE, HDPE
• Composites
• Acrylics
• Films
• And many more...

Whatever your equipment needs are in the field of Corona Treatment, Dyne Technology is here to help you find the most appropriate surface modification technology and equipment to solve your problem.

Our technical support team will be delighted to conduct a no obligation, free of charge process evaluation on your products. Simply send us a sample of your parts and we will evaluate the available surface treatment technologies and return treated parts to you for evaluation.

Please contact us to find out how Dyne Technology can help you or to request a quote.

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Latest News

10
Feb

Plasma Treatment and Corona Treatment Questions Answered
Dyne Technology has been busy updating the Frequently Asked Questions section on the website in an effort to give customers answers to their queries. Here you will find responses to questions such as What is Plasmatreatment? What materials can ...
Read more on this article

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The low surface energy of many polymer-based substrates often leads to poor adhesion of inks, glues and coatings. To obtain optimum adhesion, it is often necessary to increase the surface energy of the substrate to just above that of the material to be applied. Corona Treatment Equipment, Plasma Treatment Equipment and Flame Treatment Equipment all give good treatment levels and result in good wetting of the material over the surface of the substrate and so improves surface energy.

CORONA TREATMENT EQUIPMENT
Dyne Technology supplies Corona Treating equipment solutions to help our customers improve the surface energy of their plastic & rubber components to ensure good bonding of printing inks, paints, adhesives etc. Corona Treating Equipment (including corona pens) is widely used throughout a diverse range of industries and onto an ever increasing range of substrates. Our growing list of customers using corona treatment includes many in the following industries: medical, electronics, automotive component, cable, ophthalmic, pipe, printing, packaging, domestic appliance, cosmetics packaging, food and beverage packaging, and many more. Through our many years of experience and continuous product development we have become one of the leading suppliers of Corona Treatment equipment.

Corona treating systems can be easily integrated into existing production lines or installed as stand alone corona treatment machines.

We offer 5 corona treatment solutions:
1. Rotating Electrode; This universal corona treatment system operates with special rotating corona electrode elements resulting in complete and uniform corona treatment of the parts. It offers a cost-effective method for optimising the adhesion properties of printing inks and coatings onto 3D parts made from low surface energy polymers such as polypropylene and polyethylene.

2. Fixed Electrode; This versatile system operates using a wide range of electrode systems ranging from simple "wire" electrodes, high performance "ball" electrodes or highly durable ceramic electrode elements resulting in complete and uniform corona treatment. Fixed electrode corona treatment systems can incorporate air jets to support the feed of parts through the corona treating station.

3. Spot Treater; This corona treatment unit creates a high voltage, low frequency corona discharge to treat the surface of 3-dimensional moulded or extruded plastic parts, profiles, webs, containers, etc. An airflow presses the corona discharge towards the substrate to be treated and a counter electrode is not necessary.

4. Narrow Web Treater; This system is designed for the corona treating of conductive and non-conductive narrow webs, labels etc. This type of corona treating system can be supplied to treat either one or both sides of the web and will accommodate widths from 100-500mm, running at production speeds of up to 150m/min.

5. Wide Web Treater; This corona treatment system is designed for the flexible packaging and printing industries and offers increased surface energy on webs manufactured from a variety of materials including; paper, plastic, metalised film and foil. The compact design of the corona discharge unit enables the equipment to be easily installed into new or existing extrusion, printing, coating and laminating lines.

What ever your equipment needs are in the field of Corona Treatment, Dyne Technology is here to help you find the most appropriate surface modification technology and equipment to solve your problem. We will be happy to conduct corona treatment trials on your parts to establish the level of surface energy that can be achieved using the corona treatment process. If you have a specific technical question on corona treatment equipment you may find the answer on our FAQ page if not then please contact us.

PLASMA TREATMENT EQUIPMENT
Dyne Technology supplies both vacuum plasma and atmospheric plasma treating solutions to help our customers improve the surface energy of their plastic & rubber components to ensure good bonding of printing inks, paints, adhesives etc. and for the surface cleaning of plastic, rubber and metal parts. Plasma Treating equipment is widely used throughout a diverse range of industries and onto an ever increasing range of substrates. Our growing list of customers includes many in the following industries: medical, electronics, automotive component, cable, ophthalmic, pipe and many more. Through our many years of experience and continuous product development we have become one of the leading suppliers of Plasma Treatment equipment.

What ever your equipment needs are in the field of Plasma Treatment, Dyne Technology is here to help you find the most appropriate surface modification technology and equipment to solve your problem. If you have a specific technical question you may find the answer on our FAQ page if not then please contact us.

FLAME TREATMENT EQUIPMENT
Dyne Technology supplies Flame Treating solutions to help our customers improve the surface energy of their plastic & rubber components usually to ensure good bonding of paints, adhesives etc. Our advanced flame treatment solutions are applied in the automotive component supply industries often using robots to manipulate the flame treatment burner over the part. A wide range of parts can be processed using flame treatment.

What ever your equipment needs are in the field of Flame Treatment, Dyne Technology is here to help you find the most appropriate surface modification technology and equipment to solve your problem. If you have a specific technical question you may find the answer on our FAQ page if not then please contact us.

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