MATERIALS | STRETCH & SHRINK FILM


Right: Erema says its DualFil process can recycle


supermarket stretch film very efficiently


metallocene grades – while those with PCR can retain 80% of original dart properties, he said. Some benefits of the films include: lower hot shrink force, to prevent blow holes; higher cold shrink force, for better holding; and the ability to tailor optics and aesthetics.


Cast master Lorenzo Paggi, areas sales manager at Colines, said that automation can help to boost production quality on cast film lines. He cited the company’s Mastermind – a virtual


production assistant that automates many key tasks such as material selection and adjusting machine settings. “There is a reduced need for ‘superhero’ style


operators – meaning that less skilled operators can run the equipment,” he told delegates. Some advantages of Mastermind, he said, were


automating the core OD changeover and making thickness changes (without stopping the line), spare parts management and warehouse analytics. In one example, a core OD changeover was needed on a 2018 Allrollex line. This required 1-2 operators and took 20-25 minutes – during which


IMAGE: EREMA


time the machine was stopped. Using Mastermind, it took one operator almost no time to carry out the change – with the line still running at full speed. Paggi pointed to a number of advantages:


greater safety -- as they operator does not need to physically access the winder; increased uptime; no need for skilled operators – and freeing up one staff member for other tasks; and higher flexibility, allowing for a real multi-product machine.


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salcc@jwell.cn


sales@jwell.cn


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