Plastic-free blister pack

Plastic-free blister pack

Ski wax from Swix in an easily opened, plastic-free pack. The pack could just as well hold a deodorant or skin cream from a manufacturer that wants to move from a fossil-based packaging material to a renewable, non-fossil-based one. © Iggesund.

One of the world’s most widely used forms of packaging – the blister pack – can now be made totally in paperboard. Two major benefits are reduced environmental impact and less consumer rage and self-injury. Blister packs are made to hang on a hook in the retail store and often consist of a paperboard backing plus a moulded transparent plastic front section to display the product to the consumer.

The Norwegian converter Moltzaus’s ingeniously designed Cefapac improves both the pack’s environmental performance and its open-ability, and has already won awards.

“Our development work had two starting points – environmental impact and ease of opening,” explains Eirik Faukland, the packaging veteran in charge of R&D at Moltzau. “To get around the well-known problem of the extreme difficulty of opening plastic blister packs, the basic concept was to replace the plastic with paperboard. What’s unique with the Cefapac method is that we chose to replace all the traditional creases with perforations, which gives the desired open-ability.”

However, when perforations replace creases, the risk is that they cannot protect the pack’s contents well enough. The choice of the paperboard used is therefore crucial.

“Invercote’s superior tear strength is a prerequisite for a good-quality pack,” Faukland says. “Both the strength and how it performs in the various stages of converting and filling are crucial.” He says another benefit is that in the packs Moltzau has produced so far, the perforations have allowed the customer to increase the speed of the filling lines compared with those using creased packaging blanks.

The world-leading manufacturer of ski wax, Swix, is currently packing some of its waxes in Cefapacs and plans to expand the trial. Other products in Cefapacs already on the market are dressings for wounds and non-prescription medicines. In the autumn of 2015, Cefapac was honoured with a Scandinavian packaging award, Scanstar, and in 2017 will receive the WorldStar award from the World Packaging Organisation.

As the pack’s designer, Eirik Faukland has also been warmly praised by representatives of the Swedish and Norwegian Rheumatism Associations, which represent rheumatism sufferers. The associations actively encourage the packaging industry to develop more easily opened forms of packaging.

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