MOSCOW (MRC) -- Closures manufacturer Bericap has eliminated silicon from its valves and introduced BericapValve, which is a thermoplastic elastomer (TPE) that can be recycled in the HDPE and PP recycling stream, said Plasticsinpackaging.
Traditional ketchup, mayonnaise and other sauce bottles are often equipped with hinge-caps, and about 40 per cent of these closures have an additional valve to allow for precise and convenient dosing. However, the silicon usually used in the valve contaminates the PET and/or the HDPE/PP recycling stream.
The central packaging register in Germany, established in 2018 for monitoring the packaging stream, the recycling of packaging as well as evaluation of the sustainability of packaging, considers silicon a non-desired contaminant in the recycling stream. In addition, France has established an eco-tax on silicon.
But recycling is a prerequisite within a closed-loop economy for plastics packaging, and the recycling of PET bottles as well as HDPE and PP, which are often used for closures, is very efficient and thus attractive for producers. Returned and collected bottles are ground to pieces, the PET on the one side and the HDPE and PP on the other side are separated in a water bath. The PET sinks and can be reused for the manufacturing of bottles. The HDPE and PP as valuable raw materials remain floating on the water and can be re-used for high value applications.
"With the development of our silicon-free valves, one of the most important products within the ketchup, mayonnaises and spreadables segment, we increase the efficiency within the recycling process and make an important contribution to environmental protection", said Alexander Knipp, Bericap’s business segment leader for ketchup, mayonnaises and spreadables.
As MRC informed earlier, Bericap North America Inc. is investing USD29 million in an expansion that will double the size of its Cowpens plant.
Bericap, a subsidiary of Bericap GmbH & Co. of Budenheim, Germany, opened the 90,000-square-foot South Carolina plant in 2007. The plant does secondary operations like printing and assembly. Bericap North America is based in Burlington, Ontario and has a plant in Ontario, Calif. Bericap is a manufacturer of plastic closures with 21 factories in 19 countries across the world. The company offers a wide range of products for beverages, food, motor oil and agricultural industries.
MRC