Norwegian converter develops paperboard-only blister pack

Samples of a paperboard-only blister pack.
Samples of a paperboard-only blister pack.

One of the world’s most widely used forms of packaging – the blister pack – can now be made with 100% paperboard, totally eliminating traditional see-through plastic. Two major benefits are reduced environmental impact and less consumer “rage” and “self-injury.” Blister packs are made to hang on a holder in a retail store and often consist of a paperboard backing plus a molded transparent plastic front section to display the product inside to the consumer. The Norwegian converter Moltzaus’s ingeniously designed Cefapac improves both the pack’s environmental performance and its openability, and has already won several awards! “Our development work had two starting points – environmental impact and ease of opening,” explained 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 solution, is that we chose to replace all the traditional creases with perforations, which gives the desired openability.”

However, when perforations replace creases, the risk is that they cannot protect the pack’s contents well enough. So the choice of which paperboard to use was therefore crucial. “Invercote’s superior tear strength is a prerequisite for a good-quality pack,” Faukland added. “Both the strength and how it performs in the various stages of converting and filling are crucial.” He further emphasized that 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. As the pack’s designer, Faukland has also been praised by representatives of the Swedish and Norwegian Rheumatism Associations, which represent rheumatism sufferers. The associations both actively encourage the packaging industry to develop more easily opened forms of packaging.

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 include 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 Organization.

 

 

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Tony Curcio is the editor of Graphic Arts Magazine.