Method for sorting used plastic containers and the like

摘要: A method for sorting a plurality of diverse objects into groups, each such object being made predominately from at least polyethylene terephthalate and polystyrene two polyvinyl chloride, polypropylene, the groups consisting like type polymer identified to be polypropylene. The includes three steps. first step is irradiate sorted with near-infrared radiation. second measure diffuse reflectance irradiated in region identify as used make them. third direct their respective according measurement identification step.