yellow plastic granulate pellets

additive analysis background batch chemical color colorful coloring compound compounding create creativity design dye dyed dyeing element experiment experimental factory fiber fibre filled for glass glassfiber glassfibre gradient grain grained granulate granules heap impact industry injection inking laboratory material modified molding particle pattern pellets petrochemical pigmentation plastic plastics polymer process processing production purple raw recycling research resin science scientific scientist synthetics texture violet with yellow