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By Carl Collen 2022-08-09T14:42:00+01:00

Tray sealing specialist Proseal has developed a special training course to help customers further improve the quality of their film sealing.

The company’s Heat Sealing Masterclass is designed to show food retailers and their suppliers the various steps required to meet an ideal standard of sealing for their particular applications, and delivers expert advice on best practice and material usage.

The class provides participants with a set of practical solutions to solve and prevent the most common sealing issues. As part of this, Proseal has created a clear set of definitions for what constitutes a good seal, based around what the company defines as The Three Pillars of Heating Sealing – Materials, Design and Maintenance.

“Sealing quality is at the heart of everything we do,” explained Daryl Henshaw, key accounts manager at Proseal. “However, as much as we can engineer equipment and technologies to produce quality seals every time, without proper understanding within the industry of ‘what good looks like,’ gaps in knowledge and sometimes a lack of understanding can often impact sealing quality and can lead to costly and reputationally damaging scenarios for our customers and the retailers they supply.”

The Proseal Masterclass takes an in-depth look at “what makes a good seal” including but not limited to: the basics of compatible tray sealing materials, dealing with contaminants, heat sealing principles, correct tool handling, maintenance, storage, and how the design of the packaging impacts the functionally of the machine.

Proseal noted that the course promoted, shared and assisted with the setting up of CCP and SOP’s and went a long way to trying to instil the importance of a “check twice, cut once” culture.

A key part of Proseal’s ability to measure seal quality is the company’s ProTest seal testing system, which plays a central role in the masterclass.

ProTest is an automated lid-peeling device that enables food manufacturers and processors to determine the ideal seal strength for individual products.

It measures and reports the resistance offered by the film as it separates from the tray, and then provides the user with the relevant data to determine if the seal strength is correct and make adjustments as necessary. 

Proseal said that for many of its customers the classes had led to significant reductions in complaints to retailer for things like “off complaints, open seals and broken packs”.

“Sealing technology continues to advance rapidly and, as a leader in the field, we are happy to share our best practice knowledge with food retailers and their suppliers, free of charge,” said Henshaw. “It’s great to see the impact our masterclasses have on reducing problems and further improving sealing standards in the food industry.”

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