EvoLite – a packaging concept for non-returnable bottles.
Forming stable packs without any film-wrapping.
The challenge in terms of sustainability:
Packs of PET bottles are often sold wrapped in film, with a handle provided, so that the consumer gets a compact and easily handled pack. This raises the question of whether there are any options for designing these packs without any film-wrapping.
The starting situation:
For securing and marketing the packs, film material made of plastic is used, whose sole purpose is to keep the pack stable and to facilitate palletising and transport. The film is shrink-fitted to the pack's contours in a hot-air tunnel, which consumes a large amount of energy. The film is disposed of by the consumer.
The sustainable technology:
The pack formation is now secured only with a strapping band configuration, while a handle enables it to be carried conveniently. Thus with the EvoLite packer film is no longer required – while pack stability is fully retained. The shrink tunnel previously ubiquitous is no longer necessary either.
The packer consists of a grouping module and a strapping module, which fits a PET strapping band from above around the group of containers, and applies a handle made of PP.
The sustainable strenghts:
The technology enables the volume of waste to be significantly reduced, since film is no longer required. LDPE , which is produced from fossil raw material, need no longer be used for securing the pack, with concomitant gains in resource-economy. The strapping itself is made of recycled materials. Since a shrink tunnel is no longer required, less energy is consumed. And because the packs are so compactly dimensioned, the pallets' capacity can be increased by up to 20 %. The EvoLite strapping machine meets the enviro criteria in regard to media/energy-efficiency, plus eco-compatibility. In the assessment procedure for the enviro seal, the following features emerged as particularly significant:
- efficient motors, specifically matched to the machine's movements and acceleration functions
- reduced power consumption thanks to optimally customised motor dimensioning
- standby circuits for minimising the heat losses at the splicers
- reduced compressed-air consumption, thanks to optimal pipe routing and use of the best possible cross-sectional areas
- maximised elimination of lubricants by using lifetime-lubricated bearings and a special brush design for lubricating conveyor chains
Brief profile of the company:
Name: Krones AG
Year established: 1951
Solutions: processing lines plus filling and packaging technology, IT solutions, logistical systems for the food and beverage industries
Internationality: production facilities in Neutraubling, Flensburg, Freising, Nittenau, Rosenheim, plus sales and service facilities in 68 countries worldwide