Blowing film machine multi-layer co extrusion
Apr 15, 2023
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To fulfill the specific functional requirements of plastic film packaging materials during the manufacturing process, a solution has been developed involving the simultaneous extrusion of various characteristic materials. These materials, which possess properties like breathability, waterproofing, insulation, and toughness, are combined through blowing and co-extrusion methods to create multi-functional plastic films. The introduction of multi-layer co-extrusion blowing machines enables the harnessing of the individual advantages of different materials while overcoming the limitations of single material or single-layer film blowing machines. This innovation revolutionizes the production of plastic films by optimizing their functionality and performance.
One can take advantage of the co extrusion film blowing machine to produce a film that combines the high hardness of PP material and the high brightness of PE material. The machine allows for the perfect blending of these two characteristics, resulting in a film with exceptional qualities. By utilizing this technology, manufacturers can create films that possess both the durability of PP and the visual appeal of PE. This innovative process enables the production of films that meet the diverse needs of various industries.
The types of multilayer coextrusion film blowing machines are categorized into the following: two-layer coextrusion film blowing machines, three-layer coextrusion film blowing machines, five-layer coextrusion film blowing machines, and seven-layer coextrusion film blowing machines. These machines fall under the same product category as mentioned before. To clarify, the machines are classified based on the number of layers involved in the coextrusion film blowing process.
Three layer co extrusion
We have introduced a state-of-the-art three-layer co extrusion blowing thin production line that incorporates advanced technologies to enhance its performance. The extrusion unit has been upgraded to be more efficient and energy-saving, resulting in higher productivity and lower energy consumption. Our IBC film bubble internal cooling system ensures the optimal cooling of the film, while the ± 360 ° horizontal upward traction rotation system allows for smooth and precise film production.
To ensure the quality of the film, we have integrated a photoelectric automatic deviation correction device, which effectively eliminates film ruffles and winding heads. Additionally, our fully automatic winding and film tension control system guarantees consistent and precise winding. The entire production process is seamlessly controlled by a computer screen automatic control system, providing convenience and ease of operation.
The film produced by our production line boasts exceptional qualities. It exhibits high transparency, excellent puncture resistance, and remarkable toughness. Its outstanding low-temperature hot cutting performance makes it suitable for a variety of packaging applications. Moreover, the film demonstrates exceptional composite fastness and anti-curling properties, ensuring the integrity and appearance of packaged goods.
The barrier properties of this film are exceptional, making it ideal for light and heavy packaging purposes. It effectively preserves the freshness and quality of various items, including fresh fruits, meat products, pickled vegetables, fresh milk, liquid drinks, and medical supplies. The film is resistant to moisture, frost, oxygen, and oil, providing an optimal protective barrier for the packaged products.
In conclusion, our three-layer co extrusion blowing thin production line offers superior performance, energy efficiency, and ease of operation. The film produced by this line surpasses industry standards, possessing remarkable qualities that ensure product integrity, protection, and shelf appeal. Its versatility and suitability for various packaging applications make it an excellent choice for a wide range of industries.
Five layer co extrusion
The primary application of the five-layer co-extrusion blown film unit is for resins that have gas barrier properties. These resins can include HDPE, MHDPE, LDPE, LLDPE, MLLDPE, PA, EVOH, and others. The resultant film is mainly employed as packaging material for various purposes such as heavy packaging, high-end food bags, vacuum packaging bags, and liquid packaging bags. This film enables the preservation of fragrance, protection against spoilage, prevention of corrosion, air-tightness, and increased shelf life.

