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Digital watermark

Validation of second prototype machine takes HolyGrail 2.0 one step closer to industrial scale

0:40 min Digitization
Brussels, Belgium

The Digital Watermarks Initiative HolyGrail 2.0, driven by AIM – European Brands Association and powered by the Alliance to End Plastic Waste, has achieved a new significant milestone with the successful semi-indutrial validation of its second prototype detection unit combining digital watermarks and NIR detection.

Developed by the machine vendor Tomra and the digital watermarks technology supplier Digimarc, the detection unit demonstrated high results across all tested categories of plastic/fibre-based packaging material of 99% detection, 96% ejection and 93% purity rates, on average. The industrial scaled tests are planned to start in 2022.

Timeline and detailed results

The semi-industrial tests of the Tomra/Digimarc prototype started in March 2022 at the Tomra Headquarters in Germany. The purpose was to evaluate the technology by replicating real-world industrial conditions. Success criteria included detection efficiency, ejection efficiency, purity, prototype stability and routine function, ease of programming the sorting operation, and counting capabilities of the prototype.

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