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Artikel Neue Verpackung: Tas Evotek bringt nachhaltige Lösung auf Papierbasis auf den Markt
British Crisp Co. revolutionises crisp packaging with world’s first fully recyclable paper packet
The British Crisp Co. launches “first” fully-recyclable paper crisp packet
New Sustainable Packaging Paperbased Material
Denys Pryhodii, CEO TAS EVOTEK, Nataliya Kulyk, NUFT
Packaging performs many functions, but the main one is the reliable protection of the packaged product, since spoiled products create no less environmental burden than the packaging itself. At the same time, the packaging must meet the requirements of the Circular Economy, so it should be reused, recycled or composted.
There is increasing demand for barrier fibre-based packaging which is recyclable and eliminates single use plastic such as polyethylene as well as problematic fluorochemicals and paraffin-based waxes. Regarding paper-plastic laminates and new alternative barriers the guidelines recommend that packaging designers:
- Optimise the adhesion between the laminate sides and the board to facilitate separation
- Ensure that the paper fraction of the packaging breaks down into single fibres when pulped within a specified timeframe
- Give preference to polymers and other sealing agents that can be dealt with efficiently by the papermill process and effluent treatment systems and do not compromise the finished product, the production process or the environment whilst being recycled.
The new packaging material EVOPAK produced by the Ukrainian company TAS EVOTEK corresponds to modern trends and requests.
EVOPAK has already implemented the material for certain food products such as confectionery products, groceries, snacks and other dry bulk products. The application field may be increased.
The new cellulose fiber-based packaging material with a fully water-soluble and bio degradable PVOH coating is produced by coextrusion lamination.
Coxtrusion lamination machine Sumitomo Modern, Ltd. models Tandem Co-Extrusion Coating Line Type MLA provides coating of 15-50 microns with optimised adhesion between the laminate sides.
Such technology is more environmentally friendly than adhesive lamination, because no adhesive is used, which can cause the formation of a large number of sticky particles and contamination of equipment during recycling. Table 1 shows the test results of materials manufactured using adhesive lamination and coextrusion coating, which demonstrate the advantages of coextrusion lamination technology for further recycling of the material. The assessment of the level of recyclability of cellulose-based materials and products is carried out according to the standard ‘UNI 11743:2019’ (Paper and cardboard – Determination of the recyclability parameters of mainly cellulosic materials and products), and the results assessed in accordance with the Aticelca EVALUATION SYSTEM 501:2019 (Assessment of the level of recyclability of materials and products predominantly cellulosic on the basis of the UNI 11743: 2019 standard).
The new material differs from analogs on the market in that it can be completely recycled like ordinary paper, and also biodegrades in case of getting into the environment for one reason or another and does not pollute the environment like ordinary plastics. Another advantage is the possibility of using paper types made from recycled pulp to make new material for both secondary packaging and primary packaging.
Re-pulpable: The coated paper disintegrates with complete dispersion of fibers when re-pulped at 40 °C and above (coating is almost non-detectable when re-pulped at 20 °C) and meets criteria outlined in Laboratory Disintegration of chemical pulps.
Evaluation repulpability assessments using Test Method MC 501:2017 by Standard: UNI 11743.
Polymer Coating’s Average Solubility of Time vs Temperature
EVOPAK demonstrates excellent functionality such as good barrier values, physical mechanical properties, heat- sealability or cold seal application.
