In Norway I know the ketchup bottles (which is made from PET) changed the labels to be also made from PET, so it could be recycled with automated recycling mach

In Norway I know the ketchup bottles (which is made from PET) changed the labels to be also made from PET, so it could be recycled with automated recycling machines. So I think something like that is what we want. The whole bottle should be recycled as one material. If you also avoid black colour it should be possible to recycle the plastic with automated sorting machines.