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PACKAGING TRENDS

and constantly rising recycling rates for steel and aluminium, today it is possible to produce around three times more cans than it was 30 years ago from the same amount of primary material. RESEARCH SURROUNDING THE BEVERAGE CAN

Digital printing can now also be used to design the rounded outer surface of beverage can with the advantage: individual design for each and every beverage can in brilliant photo quality with a resolution of 600 dpi.

Falls City Brewing Company from Louisville in Kentucky was the first to use this technology.

the two developments led to material savings of 10% (at the time the can only weighed 38 g).

NECK IN AND APPLY END Parallel to the more environmentally friendly design of the opening mechanism, the true environmental revolution surrounding the beverage can was, however, the continual light-weighting of both can and end. Since 1971 the diameter of the cylindrical can was reduced from 66 to 62 mm in the top section using a new type of necking process. As a result the can end diameter also decreased leading to significant savings in the amount of material used. The two-piece tin-plate can which had been developed in England in the meantime was presented on time for the Interbrau in Munich in 1971. Overall

LIGHTWEIGHTS WITH GOOD ECO-BALANCE On its 75th anniversary, a 330 mL tinplate can weighs around 21 g, an aluminium can just 10 g. The 0.097 mm thick can walls are even thinner than a human hair. Just as important for the ecobalance of cans: the can is the most recycled packaging in the world. In Germany the recycling quota is now as high as 90%. As it is possible to recycle cans infinitely without quality deterioration, the use of recycled material today saves up to 95% of the energy which would be required to produce virgin material. Due to continual light-weighting

56 - Italian Food & Beverage Technology - LX (2010) march

Even in its 75th year, the beverage can has by no means lost its fascination as an object for research and development. The beverage can maker Ball Packaging Europe has its own research and development centre where some 70 experts are constantly working to enhance the can. For instance, the world’s first resealable can with the Ball Resealable End which was launched in 2008 was one of the most important inventions of the innovation

specialists from Ball. Cans are already on the market which, thanks to thermochromic ink coating, indicate to consumers when the contents have reached the optimal drinking temperature of 5 to 6 degrees in the refrigerator. In future cans will exude appetising aromas, if required. Digital printing techniques are also being researched in order to provide cans with individual and pin-sharp designs. And even the “communicating” can may not be just dreams of the future at some point in time: The can will then with the aid of loadable items and mobile phones be able to identify the consumer passing the supermarket shelf. The text “Good day John Q. Public - please buy me!” will then appear on the can wall. www.ball-europe.com

The beverage can looses more and more weight: standard 330 mL.

ITALIAN BEVERAGE TECHNOLOGY 60/2010  

Rivista esclusivamente in inglese, sviluppata a supporto di tutte quelle aziende italiane che vogliono puntare sull’export di macchine, prod...

ITALIAN BEVERAGE TECHNOLOGY 60/2010  

Rivista esclusivamente in inglese, sviluppata a supporto di tutte quelle aziende italiane che vogliono puntare sull’export di macchine, prod...