Ключевые слова: background, blue, chemical, chemistry, color, colorant, coloring, dark, dye, dyed, element, extrusion, factory, flask, grain, grained, granulate, granule, granules, heap, industrial, industry, injection, isolated, lab, laboratory, material, molding, particle, pellets, pet, petrochemical, plastic, polyethylene, polymer, polymeric, polypropylene, polystyrene, production, purple, raw, recycling, regranulate, research, resin, science, technology, thermoplastic, violet, white,