Multivac offers more sustainable packaging and labelling for fruit & veg
There is a new trend in the packaging of fruit and vegetables: Single-origin recyclable packs made of paperboard or cardboard are gradually replacing the typical plastic trays, which usually have an additional pillow pack, or are wrapped in stretch film or netting. Multivac‘s full wrap labelling offers a sustainable and high-quality solution for plastic-free packaging concepts. It requires just one wraparound label to securely seal the packs and also provide the product presentation at the same time.
Packaging concepts with board trays, which meet the current require-ments in terms of recyclability, are generally however cost-intensive and less efficient. This is because a cardboard sleeve usually has to be applied manually to the pack, or alternatively only low cycle rates can be achieved, if the application of the banderole is automated in an intermittent packaging process. If complex folding cartons are used, these often have to be closed manually and frequently provided with an addi-tional label.
With its L 310 full wrap conveyor belt labeller, Multivac can now offer an efficient solution for the attractive presentation of fresh fruit and vegetables in trays, which are stable and straight-walled without any product protrusion, or alternatively in trays with side flaps, if there is some degree of product protrusion.
The cardboard trays are automatically labelled and sealed on the run with self-adhesive labels made of paper, and the trays are either fed in manually or transferred directly from an upstream module. This provides significant cost savings and higher cycle rates, when compared with time-consuming, manual packaging solutions. The cycle output of the L 310 is up to 90 packs per minute. Labels with a width of up to 500mm and a weight of up to 170 g/m² can be run – and if required, an ad-ditional label can also be applied to the bottom of the pack during the same process.
The labeller can be equipped with a zero downtime function for even more efficiency and process reliability, as well as with label/print monitoring at even the highest throughput. A wide selection of printing tech-nology is also available for printing all the production-related data.
“Since the full wrap labels are stabilised by the backing material, virtu-ally all shapes are possible. The range of shapes extends from curves and cut-outs right up to specially tailored shapes to match the product or pack,” explains Michael Reffke, product manager at Multivac Marking & Inspection. “The labels can also be used as a carrier handle – and it is possible to integrate perforations into the full wrap labels, if the ma-terials have a weight of 130 g/m² or more.”
Standard self-adhesive labels made of paper or renewable materials are used to ensure that the pack is completely plastic-free and recyclable. But labels made of PP or PET can also be used for full wrap labelling. When compared with cardboard sleeves, full wrap labelling enables very light label material to be used, and this in turn has a positive effect on the CO2 balance along the entire process chain. “If full wrap labels are used instead of cardboard sleeves, the weight of the banderole can even be halved,” says Reffke.