Nampak Plastics have created the world’s lightest ever four-pint high density polyethylene (HDPE) bottle.
Weighing in at just 32g, the bottle – which is currently undergoing trials with a number of Nampak’s customers – represents a 20% material saving on the standard four-pint version found in most supermarkets today (which weighs 40g).
The breakthrough is the latest incarnation of Nampak’s multi-award-winning Infini bottle, which claimed a coveted World Star prize earlier this year and the Best Dairy Packaging Innovation at the Global Dairy Congress in 2012.
The Infini bottle, which is stocked in a number of major retailers including Marks & Spencer, Morrisons and Sainsbury’s, is already the lightest bottle on the market, but further innovation from Nampak’s design and engineering team meant that new achievements were possible. This is due to Infini’s unique design characteristics and its ability to be light-weighted easily.
Estimates from Nampak also reveal that a move towards the 32g bottle could herald significant environmental improvements for the wider milk sector.
If the company was to move its entire annual output of two billion bottles to the new lighter Infini, 15,000 tonnes of resin would be saved each year. But more importantly, if the lighter Infini was to become the bottle of choice, it would reduce the overall amount of resin used in UK milk packaging by 30,000 tonnes – a 25% saving.
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