Lid-peeling device helps ensure effective sealing and peeling

23 April 2019

Proseal has launched a seal quality testing system that determines the ideal seal and peel strength for individual products.

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The automated ProTest lid-peeling device measures and reports the resistance offered by the film as it separates from the tray during the moment of lid peeling. This provides the relevant data to determine whether the seal strength is the most user-friendly while remaining suitable for the product’s life-cycle.

ProTest can retain, display and output test data, allowing information to be exported and up to five test results can be compared at any one time. The unit is said to be flexible enough to handle the majority of trays currently used in the market, with diagonal diameters from 25mm up to 380mm in any shape.

Proseal has also 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.

The ProTest unit requires just 1200mm x 400mm of bench space and a 3 pin 230v power supply.