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New die technology improves film processing efficiency

  One of the most important components in the production of blown film is the blown film head. With film cooling and metering control, it can ensure high productivity of extruder and high quality of film. Recently, the improvement of film cooling is an important direction for many companies to improve their technology. This new method can significantly improve the performance of the production line, and because of its improved bubble control, the mechanical properties of the film are also optimized. W & H recently launched its single station opticool air ring system, which is said to have better cooling performance than the dual air ring system. In order to achieve extremely fast cooling rate, W & H's aquarex can also be used. The special water-cooling technology is adopted for the film bubble of this down blowing wet three-layer film blowing production line. With this method, high transparency can be obtained, which can meet the needs of medical and other industrial applications.

  As a whole, multilayer film has established its own position in the field of consumer goods packaging, especially in the field of food packaging. Seven layer thin films have gradually become the standard, while seven layer and nine layer composite films are still relatively few. More layers of thin film, there is a new technology is gradually accepted by the market. It can produce thin films with almost no layer limit. Cloeren launched 27 layers of nano layer damping blocks to the market, and EDI exhibited layer doubling flat film system at the last NPE. It transforms a sandwich structure of traditional structure into a structure of each layer or several layers including multiple microlayers. Especially, it can improve the resistance of the film to moisture and impact. The application range of this new technology ranges from industrial use to barrier packaging.

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