Swedish company WeLoc – Weland M. AB taps DuPont Delrin acetal resin for use in a new range of food-industry bag closures for its suitability for ‘snap-closure’ action, its durability at -50°C and this particular grade’s ability to be seen by metal detectors. These features, combined with the good creep resistance, strength, stiffness, toughness, low wear and low friction, offer WeLoc and other food industry suppliers an engineering polymer capable of replacing metal components in a huge array of applications. Metal or X-ray detection is required in the food industry to protect against foreign material cross-contaminating food. This is one of two new food-compliant Delrin resins developed specifically for food processing equipment components; material handling equipment, such as conveyor chains and hoppers; food-manipulation tools, such as cutters, shovels, scrapers; and forms and moulds. Particles as small as 3mm, the size of three sugar grains, can typically be detected using standard inspection systems. This helps ensure contaminated food does not reach the consumer.
www.weloc.com
www.dupont.com
Medium-viscosity Acetal copolymer, suitable for the snap-closure, is pre-coloured in the right shade of blue for the food industry. (photo: DuPont)
