Vacuum packing

Vacuum or modified atmosphere packaging for big bags and other bulk packaging.

Paktainer has implemented a technology enabling the hot-stamping of special valves onto our liners. Among various types of valves, we offer a solution allowing for vacuum or modified atmosphere packaging (aiming at a reduction of the level of oxygen and its replacement with nitrogen or at an increase in the level of carbon dioxide in packaging).

Specifically designed valves enable the quick creation of a vacuum in a package of up to 2000 litres.

Advantages of vacuum and MAP packaging

The most important advantage of vacuum or MAP packaging is the prolongation of the shelf life of the packaged product. Reduction of the level of oxygen in the packaging inhibits decomposition of fatty acids as well as product ageing. The product retains freshness and aroma, and in the case of microbe-sensitive products it kills insects and inhibits fungal growth. Vacuum packing and the fact that the liners possess high barrier parameters enable the maintenance of proper humidity of the packaged product. Moreover, the vacuum allows for packaging volume reduction.

Liner types

Depending on the packaged product and our goals, multi-layer barrier films based on EVOH and ALU based laminates are used. The dimensions of the liners are adjusted to the external packaging, primarily big bags, octabins and industrial grade cardboard boxes. Moreover, we can create large hoods as packaging integrating smaller ones, e.g. 25 kg bags.

What does the big bag vacuum packaging process look like and what can it be used for?

When the dimensions and type of liner have been determined, the packaging is ready for use by the customer. After the liner has been filled, its upper portion should be welded. Then, the liner valve is connected to a special machine, which can be quickly programmed - the vacuum level to be formed or in the case of MAP – the level of oxygen or other gas to be obtained can be selected. The valve is equipped with a filter, further enabling its use for powders. The main products, for which this technology is used are nuts, pistachios, coffee, seeds, rice or tea.

For additional information, please contact our sales department.

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