BBCNEWS BBC News December 27, 2021 10:28:00
Air jets accurately separate the items. that's important if we want to reuse it. the digital watermark is embossed... american firm digimarc has developed the watermark technology. today's technology is able to identify the type of plastic, but not necessarily whether it came from a food application or non—food application. with watermarks, you can precisely identify what it was. dozens of firms are taking parts — including big consumer brands like nestle, unilever and pepsico. it's sorting very, very accurately. the question now is, will that yield the kind of recycling results at scale t...