“Problematic label constructions are central roadblocks to achieving circularity for PET. Currently many label constructions, such as PETG shrink sleeves, are deeply ingrained in packaging supply chains and are impossible to replace. Developing solutions which sync with existing manufacturing and supply chains but also deliver needed recyclability by eliminating contamination threat posed by labels is key to achieving circularity for PET.
Magnomer is a materials startup introducing the use of magnetizable Magmark coatings as a tool to design recyclable packaging. Magmark coatings have been shown to be viable commercially to aid removal of undesirable labels — a major contaminant in PET bottle recycling. Magmark SS, magnetizable coatings designed for shrink sleeve labels, is the only technology available today that is commercially proven to eliminate problematic shrink sleeve in PET bottle recycling. Bottles are granulated into flakes during recycling. Magmark SS allows for removal of more than 98% of label flake away from PET bottle flake by use of existing magnetic separation equipment such as magnetic pulleys or drum magnets. Magnomer’s commercial scale testing led to an Innovation Recognition by the Association of Plastic Recyclers in 2023, allowing Magmark SS to be regarded as a ‘preferred design’ feature for PET bottles.”