A unique seal quality testing system from Proseal enables food manufacturers and processors to determine the ideal seal and peel strength for individual products.
The new ProTest solution allows users to create the best seal each time, combining effective protection of the contents with the right level of „peelability“ that ensures maximum consumer convenience. The compact and easy-to-use ProTest unit is an automated lid-peeling device that measures and reports the resistance offered by the film as it separates from the tray during the moment of lid peeling. This provides the user with the relevant data to determine if the seal strength is the most user-friendly while remaining suitable for the product’s life-cycle. ProTest is capable of retaining, displaying and outputting test data, allowing the user to export the information. Up to five test results can be compared at any one time. The unit is flexible enough to handle the vast majority of trays currently used in the market with diagonal diameters from 25 mm up to 380 mm in any shape. In order for companies to fully understand the results generated by the ProTest unit, Proseal has established a set of „Peelability Metrics“ that explains the four different stages involved in removing a film from the tray – the initial separation of the film, the peeling along the straight edges, the traveling of the film over the corners, and the final draw of the film as it is completely separated from the tray. ProTest is able to take into account the different levels of ‘weight draw’ required by the consumer at each stage, in order to assess the most appropriate seal strength required to effectively satisfy these different requirements.