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packaging | Update

EcoForm takes a two step path to thin wall

UK-based technology

development company GR8 Engineering has developed a prototype production system that aims to apply the principles of two-stage injection stretch blow

moulding - such as used for PET bottles – to the thin wall container market.

The process, which is

claimed to offer energy savings of around 30% over conventional production methods, uses two proprietary processing techniques. Flat thin PET preforms are injection moulded using the company’s VDM injection compression process; these are then blow moulded in a newly developed EcoForm machine, which uses direct conductive reheat technology.

The Ecoform process uses a

combination of stretch blow moulding and thermoforming, which GR8 director Peter Clarke says achieves optimal material distribution and high biaxial orientation. Two global food producers

are said to be evaluating the fi rst prototype Ecoform container – a PET ‘cauldron’ with a stretch ratio of 10:1

which has survived 5m drop tests at freezer temperatures. The Ecoform process can also produce tubs and the company has an ice cream container design combin- ing a PET tub with a PP lid. The EcoForm process makes it possible to

eliminate the lid overhang, improving freezer space utilisation by 15%.

“Ecoform is about bringing

tub, bottle and jar manufactur- ing in-house using a clean process and a supply of dense- ly-packed preforms,” says Clarke.

GR8 estimates a single lane

EcoForm system would provide an annual output rate of 10m containers. For more information


IPL squares up to save energy

US-based IPL has intro- duced two new lines of square clear PP injection moulded food containers designed to cut energy consumption and maximise transport packing density. The Film Seal Square

and Tamper Evident Square product lines feature thinner walls that help reduce material usage by 15% compared to previous designs. The products are clarifi ed with Millken’s NX8000 additive, which also allows lower melt tempera- tures and shorter cycle times to be used. Both product lines are

suitable for three surface and fi ve surface IML. 

SuperCube paint pack gives Kittfort a lift

Family-owned Czech paint producer Kittfort has stepped up its profi le with the introduction of a new range of interior paints packed in injection moulded rectangular containers from RPC Superfos. The company has selected the Superfos SuperCube container to package its new Colorline range of paints. It is using two sizes – 3.6 and 5.6 litres – both decorated with photographic quality IML labels. “The shape of the pail is new to us and our customers,” says

Kittfort CEO Daniel Doksanský. “As SuperCube is rectangular, it gives us a better platform for decoration and brand display than on the round pails. When our pails stand on shelf closely and neatly side-by-side they look brilliant; bright, gorgeous and vibrant.” The Superfos Supercube containers are injection moulded in PP

Czech paint fi rm Kittfort is using RPC Superfos SuperCube packs 20 INJECTION WORLD | January/February 2014

and feature an easy-to-open peel-off lid and plastic handle. Kittfort is using moulded-in metallic effect lids for coloured paints in its range, with its white range fi nshed with a white lid. 

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