Ключевые слова: agent, background, black, chemical, chemistry, color, colorant, coloring, dye, extrusion, factory, grain, granulate, granules, hdpe, heap, industrial, industry, isolated, lab, laboratory, ldpe, material, molding, pattern, pellets, pet, petrochemical, pigment, plastic, plastic pellets, polyethylene, polymer, polymeric, polymeric dye, polypropylene, polystyrene, pp, production, ps, pvc, raw, regranulate, resin, science, technology, thermoplastic, tinted, white,