polymeric dye. colorant for plastics. pigment in the granules.

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 production purple raw recycling regranulate research resin science technology thermoplastic violet white yethylene ymer ymeric ypropylene ystyrene