What materials are produced by the three-layer co extrusion blown film machine?

The three-layer co extrusion blown film machine is an efficient and multifunctional plastic film production equipment. It heats and melts different plastic particles through three extruders, and forms three layers of thin films through extrusion heads. It has the characteristics of high strength, high transparency, and durability, suitable for the needs of different industries. It has a wide range of applications in the packaging industry, and can be used to produce plastic bags, plastic packaging films, agricultural films, etc. The emergence of three-layer co extrusion blow molding machines has brought greater development opportunities and challenges to the packaging industry, which is worthy of further research and application.

There are many precautions and technical points in the production process of the three-layer co extrusion blown film machine. Choosing the appropriate plastic particles and formula is very important. Different plastic materials have different characteristics and properties, and the choice of plastic particles to use should be based on the needs of the product. Secondly, it is necessary to control the extrusion and cooling process parameters well. The extrusion temperature, extrusion speed, and cooling temperature all affect the performance and quality of the film, and need to be adjusted and controlled according to the actual situation. In addition, operators should be proficient in the use and maintenance techniques of the equipment, regularly clean and maintain the equipment to ensure its normal operation and production efficiency.

What materials are produced by the three-layer co extrusion blown film machine?

A common material produced by the three-layer co extrusion blown film machine is polyethylene (PE) film. Polyethylene is a widely used thermoplastic material with good physical and chemical properties, making it widely used in the manufacturing of films in packaging and agriculture. By using a three-layer co extrusion blown film machine, three-layer composite polyethylene film can be produced, which has tear resistance, compression resistance, and good chemical resistance. It can be used for various packaging purposes, such as food packaging, commodity packaging, etc.

Secondly, the three-layer co extrusion blown film machine can also produce polypropylene (PP) films. Polypropylene is another commonly used thermoplastic material, characterized by high strength, rigidity, and wear resistance. By using a three-layer co extrusion blown film machine, polypropylene and other materials such as polyethylene or nylon can be composite together to increase the performance and application range of the film. Polypropylene film is widely used in fields such as packaging, building materials, textiles, and daily necessities.

In addition, the three-layer co extrusion blown film machine can also produce nylon (PA) film. Nylon is a high-strength and durable synthetic fiber with good wear resistance and corrosion resistance. Through co extrusion technology, nylon can be combined with other materials such as polypropylene or polyethylene to produce composite films. Nylon film has excellent physical and chemical properties, which can be used for packaging food, drugs, and cosmetics, as well as for manufacturing protective films, composite films, and agricultural covering films.

The working principle of a three-layer co extrusion blown film machine is to simultaneously heat and melt three different plastic particles through different extruders, and extrude them out of the extrusion head to form a three-layer film. The first layer of material particles are added to the screw of the extruder through the feeding system, and then heated and gradually melted by the rotation of the screw. Once melted, it will enter the extrusion head through the push of the screw.