The agricultural film includes: mulch film, plastic film and agricultural film. The main component is polyethylene, which is used to cover farmland, raise the ground temperature, maintain soil moisture, promote seed germination and rapid growth of seedlings, and inhibit weed growth.  The raw material of the agricultural film is usually PE polyethylene, which is a thermoplastic resin obtained by polymerization of ethylene. Industrially, copolymers of ethylene and a small amount of α-olefin are also included. Polyethylene is odorless, non-toxic, waxy, has excellent low temperature resistance, good chemical stability, and is resistant to most acids and alkalis. It is insoluble in common solvents at room temperature, has low water absorption and excellent electrical insulation properties. The requirements of agricultural film are: moisturizing, warming, non-toxic, non-polluting, and strong aging resistance.

The role of black masterbatch in the agricultural film is as follows:
1. Fast and efficient coloring of agricultural film. 2. Enhance the anti-aging performance of agricultural film. 3. Improve the smoothness of the surface of the agricultural film to prevent peeling and cracking.