5 Layer Co-Extrusion Pro Blown Film Machine

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  5-layer Non-Barrier Film (Laminated Film) Blowing Machine

  5-layer Non-Barrier Film (Laminated Film) Blowing Machine produces films with excellent flexibility, tensile strength, and heat-sealing properties. Flexibility makes the film easy to process and shape, adapting to various packaging formats; tensile strength ensures the film resists breakage during packaging and transportation; and excellent heat-sealing properties provide a reliable seal, preventing leakage.
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  5-layer Barrier Film Blowing Machine

  The film's most prominent feature is its excellent barrier properties, effectively blocking the permeation of oxygen, moisture, and odors, significantly extending the shelf life of packaged products. Furthermore, thanks to its multi-material composite structure, it possesses high mechanical strength, abrasion resistance, and excellent chemical stability, protecting product quality in diverse environments.
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  Non-barrier blown film machine design

  The die design of non-barrier film blown film machines focuses on achieving uniform distribution and lamination of PE materials across the various layers. The flow channel structure is relatively simple, with the primary focus on ensuring stable fusion of PE materials with varying properties during extrusion, resulting in a composite film structure with excellent overall performance.
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  Barrier blown film machine design

  Barrier films are co-extruded from multiple materials with varying properties, requiring a more complex and precise die design. Differences in the rheological properties of the melts of different materials must be considered, such as the varying processing temperatures and melt viscosities of EVOH, PA, and PE. The die flow channel must precisely control the flow rate and pressure of each layer to prevent uneven pressure from causing unstable interlayer interfaces and defects such as delamination and inclusions. Furthermore, the thickness of the high-barrier material layer must be uniform to achieve stable barrier performance.

Above parameters only for reference, could be customized according to customer needs, detailed data pls check actual object