A number of British companies have recently jointly developed a new type that can be detected by near infrared technology Plastic Additives Coloring agent, used against black plastic For recycling. This new technique is compatible with existing mechanical regeneration, the software only minor adjustment.
In the past, black plastic rubbish automated mechanical black belt will be mistaken for transparent objects, and therefore can not be sorted out from the black plastic mixed plastic waste. This new black colorant can be detected by the NIR spectra and the sorted Black Plastic Packaging Garbage, and can be. Such colorants suitable for classification according to the type of the polymer amorphous and crystalline PET, polypropylene, high density polyethylene, Polystyrene with pvc material.