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Naturally better Multi-Packs

The calls for environmentally friendly packaging are growing louder each day and with its current project the KHS Group is addressing precisely this issue: together with Martens Brewery in Belgium, the turnkey supplier has made the portfolio for German food store chain Aldi more sustainable. 

Karlskrone beer is now to be sold as a film free KHS Nature MultiPack of six – in redesigned 0.5-litre PET bottles made entirely of recyclate. FreshSafe PET, the patented KHS Plasmax coating process, also provides optimum product protection and a long shelf life. With this hat trick, KHS is implementing its strategy of reducing packaging waste and promoting a closed recycling loop on the market. 

As part of its sustainability strategy, one of the goals Aldi has set itself is to use 30% less packaging material for its own brands by 2025 – by doing away with shrink film, for example. Moreover, recyclable packaging is to be introduced in this segment by 2022. The KHS Group and Martens Brewery have played a major role in the first step in the switch to a sustainable portfolio. The two companies have been working closely together on the development and establishment of disruptive technologies for decades. ‘We enjoy a long, strategic partnership based on mutual trust. Our current project is sending out an important message,’ said brewery boss Jan Martens. ‘The development of this ecofriendly packaging shows that with the commitment of all those involved sustainable systems can be successfully established on the market,’ added Edgar-George Petsche, head of Market Zone Europe/CIS at KHS.

Martens fills its beverages on a number of KHS machines – into cans, glass bottles and – as in this case – PET. The two companies’ many years of partnership has facilitated the quick market launch of the new style of packaging. The brewery invested in an InnoPET Blomax stretch blow molder and an InnoPET Plasmax that coats the insides of the bottles with a wafer thin film of chemically pure glass. The existing line has now been extended by an Innopack Nature MultiPack machine.

The new system joins beverage bottles together, not with shrink film, but with dots of adhesive to form a stable yet easy to separate pack. This enables up to 90% in packaging to be saved. Compared to the pack variant currently on the market comprised of film and weighing in at 7.5 grams, the novel set up uses just 1.5 grams of adhesive. A convenient carrying handle, which helps to keep the pack stable, and individual alignment of the respective containers also communicate effective marketing messages. The beverage producer saves up to 67% in energy during production compared to shrink wrapping the containers in film as the material does not have to be heated. 

Furthermore, according to Edgar-George Petsche, CO2 emissions are slashed by up to 70% with regard to the overall ecobalance. ‘The entire production process is significant here – from the manufacture of the film through sales to disposal,’ he said. With the new pack, Martens also does without trays. This saves raw materials such as paper and cardboard without impacting the pack’s stability. Should bottlers and retailers require, however, trays can be easily incorporated into the process. 

At the moment up to 40,000 PET bottles an hour can be processed by Martens as Nature MultiPacks. The modular machine design allows bottles to also continue to be wrapped in film. In addition to using Nature MultiPack and FreshSafe PET, Martens has also gone for a fully recyclable bottle made of 100% rPET, even though virgin PET is less expensive. 

Martens Brewery -

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