Abstract: A process for the extraction of one or more colour pigments from waste plastic in which a waste plastic feedstock is mixed with a solvent in a reactor having a shearing mechanism and the solvent is separated out and recycled in the process. The shearing mechanism provides high shear, high contact mixing so as to move the pigment to the surface of the plastic for contact with the solvent to give efficient colour pigment removal. Embodiments of reactors with shearing mechanisms are described. Environmentally friendly solvents are also described. The process gives highly sought after natural recyclate at a commercial scale.