Exploration of PE film production process

2024-09-19 09:09:32

PE film, with its excellent flexibility, transparency, and barrier properties, has been widely used in various fields such as packaging, agriculture, and construction. As a manufacturer of PE film, we are well aware of the importance of production process for product quality. Now, let's step into the world of PE film production technology together.

At the beginning of the production of PE film, the selection of raw materials is crucial. We carefully select high-quality polyethylene particles as the production basis, which have undergone rigorous screening and testing to ensure they are free of impurities and have stable chemical properties. In addition, we will also design formulas for raw materials based on customer needs and product application areas, adding appropriate amounts of plasticizers, antioxidants, UV blockers, and other additives to improve the comprehensive performance of PE films.

After the raw materials are ready, enter the extrusion molding stage. We feed the formulated polyethylene particles into an extruder, where they are melted and extruded into a continuous film under high temperature and pressure. The temperature and screw speed of the extruder are key factors affecting the thickness and uniformity of the film. Therefore, we adopt advanced temperature control system and precise screw speed control to ensure that the thickness of each layer of film meets the standards.

The extruded film needs to undergo stretching treatment to improve its strength and toughness. During the stretching process, the film is uniformly stretched to a predetermined multiple and kept at high temperature for a period of time to fully orient and align the molecular chains. The stretched film not only has higher strength, but also better transparency and better barrier properties.

After the stretching process is completed, the film enters the winding stage. We use professional winding equipment to smoothly roll the film onto the core shaft, ensuring that there are no wrinkles or looseness during the winding process. After the winding is completed, we will conduct strict appearance and performance tests on each roll of PE film to ensure that its quality meets customer requirements.

Finally, after testing and packaging, the PE film can be sold at the factory. We use environmentally friendly packaging materials to properly package the PE film, preventing contamination and damage during transportation and storage. At the same time, we will also provide customized packaging services according to customer requirements to meet the needs of different customers.

In summary, the production process of PE film is a complex and delicate process that requires strict control over every step. As a PE film manufacturer, we will continue to adhere to the principle of quality first, continuously optimize production processes, and provide customers with higher quality and reliable PE film products.