Greiner Packaging (Kremsmünster, Austria) is the latest plastic packaging manufacturer to jump into the booming coffee capsule arena by producing its very own coffee capsules. Over the past few months, Greiner has collaborated with an internationally known player in the coffee industry to ensure top quality with its multi-barrier technology (MBT) which provides longer-lasting protection for the coffee aroma.
The end result is a capsule that not only raises the bar in barrier protection, but in sustainability as well. The production process begins with extrusion of the foil from which the capsules are thermoformed. A hole is punched in the center of each capsule through which the coffee drips through. The same goes for the edge at the bottom of the capsule where a filter is inserted. Only a precise production process allows smooth processing of the capsules. A fully automated camera system (Vision Control) monitors the entire production process. The packaging is also fully automated and touchless.
For quality purposes, the capsules are measured and examined using computer tomography to ensure perfect measurement. The accurate production and control processes monitor and make certain that rejects are reduced to a minimum. Those that are rejected are ground up and sent back into the production process.
"Together with our client and our client's experience, we have been able to define a new level of quality for coffee capsules. That has allowed us to set new market standards," says Kenneth Boldog, Sales Director for K Europe, a division of Grenier Packaging.
The capsules consist of polypropylene plastic incorporating a barrier layer of EVOH. The MBT yields a higher oxygen barrier in the packaging. This protects the coffee from external forces, which increases shelf life and aroma protection.
Greiner Packaging employs around 3,400 employees at 31 locations in 17 countries worldwide. The company achieved annual sales of €507 million in 2014 (including joint ventures).