Innovia Films has introduced its latest high-speed BOPP film, Propafilm REF, as a response to demand for packaging films that perform on a variety of machines at the highest possible speeds.
The co-extruded material complements the company’s range of high-speed materials, with the product presenting a wide sealing range when compared to standard coextruded films. At typical laboratory conditions, scientists have been able to confirm a more than 30 deg C lower heat seal threshold (the minimum temperature required to achieve acceptable seal strength of 200g/25mm) compared to basic films.
In addition to the wide seal range, this film also provides an enhanced hot tack performance over standard films. This means that the seals, when pulled still hot, resist opening on a larger range of temperatures. Combined, these two properties enable Propafilm REF to be suited to horizontal-form-fill wrapping applications.
Innovia has been able to validate its laboratory findings with packaging machinery trials. SPS Italiana Pack systems was one of the partners chosen to confirm the film’s performance: “We ran Propafilm REF on our Modulo machine and we can confirm that speeds of 80m/min were achieved, a substantial 30m/min improvement. At these speeds, the film was still passing our stringent micro-hole acceptance level (200mbar/20sec pillow bag configuration),” explained Roberto Spatolisano, project manager from SPS.
More information from Innovia Films Ltd, Lowther R&D Centre, Wigton, Cumbria CA7 9XX, UK. Tel: 44 16973 42281. Email: [email protected] Web: innoviafilms.com.