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In Europe we consume 50 million tonnes of plastic a year. The use of plastic has increased fiftyfold in fifty years and the growth continues. Collecting and recycling plastic is thus essential to avoid the pollution of the land and sea. However, generally, post-consumer plastics have very low recycling rates, at present only 7% of plastic used in Europe comes from recycled polymers.
Polyethylene terephthalate (PET) is one of the most recycled materials; in 2017 more than 57% of PET bottles were recycled in Europe, used in both packaging and fibre applications. Especially transparent PET bottles have high collecting and recycling rates over Europe. However, the plastics have very different value depending on their colour. If the plastic is even very lightly coloured, the plastic will lose a large percentage of its value.
Decolouring plastic is complicated and currently no efficient and economically viable system exists.
FT Innovations, a SME with the core-expertise in extraction, sees potential in developing a sustainable decolouration process with a new extraction technology, which offers significant potential in replacing hazardous, relatively expensive and environmentally damaging organic solvents that are currently used on decolouration. Avans has relevant expertise in both (biobased) plastic colourants and the extraction techniques as demonstrated in previous projects, and therefore FT innovations approached Avans with the request to assist in the feasibility study. The consortium is further strengthen by CCT Oss with their strong industrial know-how of colourants and their use in plastics and Plastic Company with their core activity on recycling of PET and other plastic materials.