The production process of PE stretch film involves many links, and the quality control of each link directly affects the performance of the final product. This article will introduce the production process and quality control measures of PE stretch film in detail to help users better understand the manufacturing process of this product.
Production technology
1. Raw material preparation: Use high-quality polyethylene resin as raw material to ensure that the purity and performance of raw materials meet the requirements.
2. Melt extrusion: the polyethylene resin is heated to a molten state, and it is extruded into a film by the extruder. This process requires precise control of temperature and pressure to ensure uniformity and stability of the film.
3. Cooling and shaping: the molten film is quickly cooled by the cooling roller to form a stable film structure. The cooling rate and temperature have important effects on the properties of the film.
4. Tensile treatment: Through longitudinal and transverse stretching, the film can obtain higher tensile strength and resilience. Drawing ratios and speeds need to be precisely controlled during the drawing process.
5. Cut and pack: cut the stretched film into the required width and length for packaging and storage.
Quality control
1. Raw material inspection: strictly inspect the performance indicators of each batch of raw materials to ensure that the quality of raw materials meets the standard.
2. Online monitoring: In the production process, the thickness, width and surface quality of the film are monitored in real time through the online monitoring system, and quality problems are discovered and solved in time.
3. Finished product testing: Strict testing of each batch of finished products, including tensile strength, resilience, transparency and other indicators to ensure product performance standards.
4. Environmental control: the temperature, humidity and cleanliness of the production environment have a great impact on product quality. The environmental control system ensures stable environmental conditions in the production process.
Application case
A large logistics company recently adopted Liantu's PE wrap film to ensure high performance and reliability of packaging materials through strict production process and quality control. According to the company, after using Liantu's PE wrap film, the damage rate of goods during transportation is significantly reduced and customer satisfaction is significantly improved.
The production process and quality control of PE wrap film are the key to ensure product performance. Liantu company through strict production management and quality testing, to provide customers with high quality PE wrap film. Choose Liantu products to make your logistics packaging safer and more reliable.














