A newly developed transparent bioplastic is being marketed as an alternative to aluminium for aerosols and to heat-set PET for hot-fill applications, by its producers Velox GmbH and SK Chemicals.
Ecozen HF is a bio-copolyester developed in partnership by raw material manufacturer Velox and South Korean firm SK Chemicals, and offers heat and pressure resistance combined with transparency. First customers have started to trial the grades.
Possessing similar processing requirements to PET, Ecozen HF can be used in the same injection-stretch blow moulding (ISBM) process, but the grades are said to also be suitable where PET can sometimes fail, such as in high temperature and high pressure applications.
“PET is sometimes used to produce aerosol bottles. These bottles can often fail due to high residual stress and the low temperature resistance of PET, especially in the summer months when possible leakage is the result,” said Velox’s general manager Francois Minec. “Ecozen HF offers an alternative here.”
As a glass replacement for food packaging, it can help reduce weight and transportation costs but can also be used to produce hot-fill containers without the need for an expensive PET heat-setting process or the need for crystallising the bottle or jar neck, claims Velox.
Similarly, as an aluminium substitute in the cosmetics packaging industry, Ecozen HF is said to combine high pressure-resistance with design flexibility and transparency. It is also totally miscible with PET in the recycling stream.
More information from SK Chemicals, 310, Pangyo-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 13494, Korea. Tel: 82 2 2008 2008. Web: skchemicals.com
Velox GmbH, Brandstwiete 1, 20457 Hamburg, Germany. Tel: 49 40 369 688 946. Web: velox.com