The fibers that make up the blades of synthetic turf grass are usually made from Nylon, Polyethylene or Polypropylene. Blending of special ingredients made from colored pellets give the turf its traditional green color. Added chemicals in the mixture protects the fiber from the ultraviolet rays from the sun. These pellets are melted, blended and can be manufactured in different ways. They can be produced in thin sheets that are cut into strips or extruded through molds to produce fibers with a round, diamond, “W” cross-section. The final extruded results consist of blades that feel and act like natural grass. This completed mixture creates a dye lot.
A dye lot is a record taken during the dyeing of yarn to identify yarn that received its coloration in the same vat at the same time. Yarn manufacturers assign each lot a unique identification number and stamp it on the label before shipping. When installing multiple sections of synthetic turf, all sections MUST BE OF THE SAME DYE LOT, or you will have non-matching color variations.
Prior to ordering multiple rolls for one installation, it is advantageous to let your supplier know that you will need every connecting roll that is ordered to be made with the same dye lot. Even though manufacturers come very close with every extrusion, it is merely impossible for separate runs to be an exact match.