Materials | technology PLASTICISERS
Toxicology tests show
PETV safety An independent study on the toxicological properties of Perstorp’s Pevalen non- phthalate PVC plasticiser shows that it has no toxic properties and that it should be approved for food contact applications, says the company. Perstorp developed
Pevalen (PETV or pentae- rythritol tetravalerate) for use as a plasticiser in close-to-consumer applications in flexible PVC. It is widely used for products such as coated fabrics, but approval for use in products that may come into contact with food – such as conveyor belts in food preparation – is ongoing due to more strict testing requirements. The recent test, carried out by the Research Toxicology Centre (RTC) in Pomezia, Italy, is a key requirement for approval by the US Food and Drug Administration (FDA). The tests showed that Pevalen is non-toxic, even at the highest dosage that is required by standard protocols. “This is the latest and
most detailed study showing that Pevalen is non-tox- ic,” said Carina Fogelberg, product stewardship and regulatory affairs specialist at Perstorp. “We are obviously very happy with the results, and shall now move ahead to obtain full food contact approvals.” ❙
www.perstorp.com
www.filmandsheet.com BIOPLASTICS
Bio-based compounds boost home-compostable packaging
FKuR of Germany has developed a new range of Bio-Flex blends for making low gauge films that will biode- grade in garden compost at low, variable temperatures. All home-compostable
Bio-Flex compounds are regarded as having high moisture resistance. This is a huge advantage when compared with many other commercially available starch-based plastics of this type, says the company. These biodegrade rapidly but should only be filled with dry contents. The range of possible
applications for FKuR’s new compounds includes multi- purpose bags, as well as bags for fruit and vegetable packing and mulching films. The current range com-
LABELLING Teaming up on RFID tyre labels
Avery Dennison and Ferm RFID Solutions have created what they say is the first universal tyre tread label, with worldwide RFID functionality. The label allows entire pallets of
tyres to be read in a single pass. “Metallised materials are sometimes used on tyres because they resist staining – but they badly affect RFID readability,” said Hans Eichenwald, senior product manager at Avery Dennison Materials Group Europe.
“Our white tyre labels look good
and retain their high visual impact, because they have built-in protection against swelling and staining once the label is on the tyre.”
Eichenwald added that both
polypropylene and polyester tyre labels perform well under challeng- ing conditions.
“Our hotmelt adhesive technology
with bleed-free roll edges gives very good processability for label printers, and is less expensive compared with solvent-based adhesive technology,” he said. The new tread label technology
allows up to 150 tyres to be read simultaneously, at a distance of up to 7m, with more dependable performance, lower error rates and reduced tyre wastage, says Avery Dennison. ❙
www.averydennison.com
March 2017 | FILM & SHEET EXTRUSION 53
The white tyre labels have
worldwide RFID functionality
Bio-Flex FX 1821 (10% bio-based), FX 1823 (30% bio-based) and FX 1824 (40% bio-based) grades are all opaque, and all have good tear resistance and toughness. Tests have shown that
bags can be downgauged to 8 microns with these new grades. Since January 2017, in the
prises translucent and opaque grades. Bio-Flex FX 1803 (30% bio-based), F1804 and F1814 (both 40% bio-based) grades are translucent. They are suitable for packaging goods with printed IR codes as well as for visually attractive packaging for all types of printed materials.
French retail sector, plastic bags have been banned for packaging many food products – though bags made from home-compostable bioplastic with at least 30% renewable raw materials (60% from 2025) are excluded. Belgium-based Vinçotte
has issued OK Compost HOME certificates for the grades. ❙
www.fkur.com
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