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Corona Treatment Resources

Explore our Corona Treatment Case Studies…

Steris-healthcare corona treatmentAlbert Browne, part of the STERIS Healthcare Corporation who provide sterile processing equipment to the medical industry contacted Dyne Technology when looking to improve the adhesion quality of their printing ink on the sterile indicators that are widely used in hospitals throughout the UK & Ireland. Find out more about how Corona Treatment benefited STERIS Healthcare Corporation or download the PDF version of our case study.

ARM-Buildings

ARM Buildings Limited, one of the largest suppliers of pig buildings within the UK, have been operating within the industry for thirty-five years. Their long history of product development has undoubtedly helped to cement their outstanding reputation for being a high quality service provider for both the engineering and building industries.

ARM Buildings contacted Dyne Technology when seeking a solution to gaining strong adhesion to the internal polypropylene panel cladding used to build the high quality pig buildings. With over 40 years industry experience, UK based Dyne Technology were confident that by working closely with the ARM Buildings team, a solution could be found that would both solve the problems of adhesion and optimise their manufacturing process. Read more to find out how Corona Treatment solved the problems of adhesion for ARM Buildings or download the PDF version of our case study.

Corona Treatment in action…

The problem of bonding to plastics is becoming more prevalent throughout UK manufacturing and engineering due to the increasing use of polyolefins within manufacturing. Polyolefins, such as PP, ABS and PC, alongside composite blends with added glass have a low surface energy. The low polarity of these materials means that achieving adhesion is at best, difficult and often near impossible.

Without surface activation, printing inks will not stick and adhesives will not bond. As a result of this, it is unsurprising that Corona Treatment is the surface activation method of choice throughout many industries.

What is Corona Treatment?

Corona Treatment is used 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.

Corona Discharge occurs when a high voltage and high frequency electrical potential is applied to a small diameter electrode in relatively close proximity to an electrical ground which produces a visible electrical discharge.

How does Corona Treatment solve the problems of adhesion?

In order to obtain good adhesion to materials with low or no polarity, for example, the most common plastics on earth, polyethylene and polypropylene, Corona Treatment creates a high voltage, high frequency corona discharge in close proximity to the component that requires treating.

The high energy corona discharge is attracted to the material severing the molecular bonds on the surface. As a result, these severed bonds are now free to attach to free radicals and other particles that occur within the corona discharge environment, which is highly active due to the partial ionisation of the surrounding atmosphere.

As a result, additional polar groups form on the materials surface and have a strong chemical affinity to the coatings, paints, adhesives and sealants that were once repelled. Find out more about Corona Treatment…