https://www.recycle-plant.com/pet-bottle-label-remover.html

Instead of removing plastic bottle labels by labor, the PET bottle de-labeling
machine can separate the PVC label and bottle body, greatly improve work efficiency
and replace manual production. It is the prelude to work before crushing of PET
bottle recycling production line. Then finally, the machine can reduce the PVC
content of PET net flakes for plastic recycling.