When the packing belt is produced, some ingredients are added to make the packing belt more stable and durable. such as plastic packaging with the use of additives are more common, the main additives are heat and light stabilizers, lubricants, and many other types. In addition to these additives, there are a number of special additives, such as foaming agents, anti-caking and anti-smoke agents, antimicrobial agents, clarification and nucleating agents. In the process of packaging and belt processing, these additives can not only improve the performance of the packaging belt, improve its use value, prolong the service life of plastic products, but also improve processing efficiency.