COLOR MASTERBATCH FOR PRODUCING A COLORED PLASTIC ARTICLE AND METHOD FOR DECOLORING THE COLORED PLASTIC ARTICLE

The present invention is directed to a color masterbatch for producing colored plastic articles, wherein the color masterbatch comprises:- at least one carrier,- at least one coloring agent, and- at least one water-soluble or water-swellable component;wherein the at least one carrier is an organic polymer having a molecular weight Mw ≥ 1000 g/mol and wherein the organic polymer is insoluble in water,wherein an amount of the water-soluble or water-swellable component in the color masterbatch is ≥ 1 wt% to ≤ 50 wt%, preferably ≥ 2 wt% to ≤ 25 wt%, more preferably ≥ 4 wt% to ≤ 20 wt%, even more preferably ≥ 5 wt% to ≤ 15 wt%, based on the total weight of the color masterbatch,wherein the coloring agent is a lake pigment, andwherein a weight ratio of the coloring agent to the water-soluble or water-swellable component in the color masterbatch is 1:2 to 1:200, preferably 1:5 to 1:50.