Technology

Suberin, a natural plant-cell-wall substance that guards birch bark against moisture, oils, and environmental stress, yields a barrier coating with moisture/grease resistance, hydrophobic properties, adhesion, and durability, usable solo or combined.

Addressing wet pet food can issues like broken pull rings, sharp edges, and trapped food, the pack uses a PP cup, top lidding film, and bottom seal film.

Described by Stahl as cost-effective and recyclable, the range replaces hot foil stamping and cold foil, simplifying production while achieving a mirror-like finish minus separate foiling.

Supporting complex closure formats such as tethered designs, the system maintains tight tolerances and process stability in high-speed environments.

After switching from gas-fired drying to induction and UV, closures are now made with 100% renewable energy, yielding an 81% CO₂ reduction per closure in 2025 vs 2011.

Safe and convenient for children and elderly users alike, the package opens in three easy steps, no sharp edges, by folding the sides up, lifting the tab, and tearing along the dotted line.

Label detaches from PET flakes in processing, prevents contamination, maintains purity, addressing adhesive/incompatible-label challenge.

Designed to stay put through normal use, ice included, but release under hot water and agitation, Wausau’s wash-away technology supports circular packaging, since reuse is among the most energy-efficient recycling routes.

Now extended to 50ml and 100ml, the packaging uses a cylindrical, rounded-base container from Bormioli Luigi’s ecoLine range, a long-standing Coverpla partner.