Multi-layer Co-extruded Barrier Film Manufacturers

How to avoid problems such as bubble bursting, strain hardening, frost line instability and bubble flutter in the multi-layer co-extrusion process of multi-layer co-extruded barrier film?

Changxi Packaging Technology (Yixing) Co., Ltd. strictly implements the screening and audit procedures for raw material suppliers to ensure that all raw materials come from reputable and stable suppliers. For multi-layer co-extruded barrier films, the performance of raw materials directly affects the quality and processing performance of the final product. The company not only requires raw materials to have excellent physical and chemical stability, but also pays special attention to their melt fluidity, thermal stability and barrier properties, which are crucial to avoid problems such as bubble bursting and strain hardening.
Incoming material testing and comparison are also indispensable. Changxi Packaging uses advanced testing equipment to conduct strict performance tests on each batch of raw materials, including key indicators such as melt index, density, tensile strength, and elongation at break, to ensure that each batch of raw materials can meet the established production standards. Through incoming material comparison, the differences between raw material batches can be discovered and corrected in time to ensure the continuity and stability of the production process.
In the multi-layer co-extrusion process, precise process design and strict process control are the key to avoiding various defects. Changxi Packaging uses advanced computer-aided design (CAD) and simulation software to optimize the design of multi-layer co-extrusion dies to ensure uniform distribution and good adhesion of each layer of material during the extrusion process, thereby reducing the risk of bubble rupture. Through precise control of key parameters such as extrusion temperature, screw speed, and traction speed, stable extrusion of molten materials is achieved to avoid strain hardening.
Frost line instability is often related to the mismatch between extrusion temperature and cooling rate. Changxi Packaging ensures the stability of the frost line position by precisely controlling the temperature and wind speed of the cooling system, effectively preventing uneven film thickness and performance degradation caused by temperature fluctuations. The company also uses an advanced online monitoring system to monitor the frost line position and various performance indicators of the film material in real time. Once an abnormality is found, the process parameters are adjusted immediately to ensure the continuity of the production process and the consistency of product quality.
Bubble flutter is an important factor affecting the surface quality and barrier performance of multi-layer co-extruded barrier films. Changxi Packaging reduces the occurrence of bubble flutter by optimizing the design and operating parameters of the extruder, such as increasing the stability of the extruder and reducing the fluctuation of extrusion pressure. The flow channel of the extrusion die is precisely processed and polished to reduce the flow resistance of the material in the die and improve the stability of the extrusion process. The company has also introduced advanced vibration control technology to further reduce the risk of bubble vibration by real-time monitoring and adjusting the vibration state of the extruder.
Changxi Packaging Technology (Yixing) Co., Ltd. has sufficient production capacity, which not only ensures the timely delivery of orders, but also provides flexible space for continuous optimization of production processes and response to market changes. The company ensures the stable supply and price control of raw materials through the refined management of the raw material supply chain, laying a solid foundation for continuous production. The perfect ERP system realizes the information management of the entire chain from raw material procurement to production, sales, and warehousing, improving production efficiency and market response speed.
Changxi Packaging always adheres to the concept of seamless service and has an after-sales service team composed of technical backbones. They not only have rich experience in the production of multi-layer coextruded barrier films and problem-solving capabilities, but also can provide all-weather tracking services and respond to customer needs in a timely manner. By regularly visiting customers and collecting feedback, the company can promptly discover and solve problems encountered by customers during use and form a close cooperative relationship with customers. The company has established a complete customer file system to record customers' usage and changes in demand, providing customers with more personalized and thoughtful services.