MATERIALS | MEDICAL
Above: Solvay has developed a high-barrier PVDC coating for pharma- ceutical blister film
product management at Flexcon. “They use our best thermal transfer printable topcoats. In addition, they are backed with a 30% post- consumer waste liner.”
PVDC coating Solvay has introduced Diofan Ultra736, a high- barrier PVDC coating for pharma blister films. The coating allows an ultra-high water vapour barrier that allows carbon footprint reduction, it says. As an aqueous dispersion, it is fluorine-free, meets regulatory requirements for direct pharmaceutical contact and supports the design of sustainable films with thinner coating designs. The coating was engineered to maximise the
water vapour barrier without sacrificing its oxygen barrier, chemical resistance or transparency. It has good thermoformability, enabling smaller pack sizes with higher pill density compared with other coating solutions, says Solvay. “This new coating can help packaging film manufacturers achieve superior barrier properties with thinner structures, leading to a significant carbon footprint reduction of the blister film,” said Federico Baruffi, global marketing manager for packaging at Solvay Specialty Polymers.
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Recyclable blisters At the recent Pharmapack show in Paris, Suedpack Medica showcased a number of innovations, including its PharmaGuard blister packaging concept. “With its excellent transparency, stable thermoforming and shrinkage behaviour and broad sealing range, it is recognised as a recyclable blister packaging solution with outstanding potential,” said Jürgen Bodenmüller, business development director at Suedpack Medica. To help move away from vinyl-based thermoforming films to PP-based blister films, the company has expanded the portfolio with a variant that has a broader process window for thermoforming and sealing – showing advantages over PP films that are usually used, it says. For companies with a large number of different blister machines, this is a significant benefit, it added. The company also highlighted its pouches –
which are useful for packaging products such as stoppers, filters or connectors, as well as for simple media packaging and as transfer packaging to transport products between clean rooms or to the point of use. In addition, it focused on its coextruded flexible and rigid films – which are used as base and lidding films for sterilisable thermoformed packaging.
PET project At the same event, TekniPlex Healthcare showed what it says is the world’s first pharma-grade PET blister film with recycled content. Developed with Alpek Polyester, the film is suitable for a range of primary packaging applications – with 30% of its PET polymerised from PCR-origin through chemical recycling.
When combined with TekniPlex’s polyester
lidding, Teknilid Push, the film plus lidding blister system is fully recyclable in the polyester recycling
IMAGE: SOLVAY
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