In the food industry, vacuum skin packs not only guarantee perfect hygiene and maximum shelf life but are also popular because of the appetizing manner in which they display the products. The new MULTIVAC (multivac.com) R 575 MF PRO thermoforming packaging machine can now produce skin packs of the highest quality for products with heights of up to 90 mm.

The appetizing appearance of food is as important in the purchasing decision of customers as the confidence in perfect hygiene and maximum shelf life. This is why many manufacturers rely on vacuum skin packs. They enclose the entire product in a manner that is airtight, wrap around it like a second skin without applying tension and vividly display it. It is in respect of not only packaged meat and fish products that this type of packaging makes the quality visible to the customer at a glance.

Additional upper web forming station optimizes the packaging procedure

The MULTIVAC R 575 MF PRO thermoforming packaging machine has been optimized for packaging high products. Unlike standard thermoforming packaging machines for the production of skin packaging, an upper web forming station has also been integrated into this model. It forms the upper web before it is conveyed to the sealing die. The thermoformed film is heated again, in the dome of the sealing die, before it is placed around the goods to be packaged. This intermediate step, additionally, increases the process reliability of the skin packaging procedure.

Highest pack quality

This innovative process ensures that the upper web in the sealing die already has the shape of the product to be packaged. The additional heating makes the film malleable enough to fit, snugly and smoothly, around the packaged goods. As the malleability of the film also ensures the optimal sealing of the upper and lower web, it provides maximum packaging reliability. This optimized procedure is particularly suited for products that are very high, as the upper web in the sealing die has to cover a longer path during their packaging. On contact with the packaged goods the temperature usually decreases and, consequently, the plasticity of the film, which endangers the quality of the packaging.

Thermoforming packaging instead of packaging in trays

 The thermoforming packaging technology of the R 575 MF PRO is also superior to the tray packaging, usually used for high packaged goods, from an economic perspective: film from a roll significantly reduces the cost of the packaging material and reduces the effort involved in handling and storage. Due to its higher cycle output, the thermoforming packaging procedure in the production of vacuum skin packaging is substantially more efficient than the tray packaging procedure. In thermoforming packaging, the pack design can also be easily adapted to the individual requirements of the customer.