What different thicknesses of films can the three-layer co extrusion blown film machine produce?

The three-layer co extrusion blown film machine, as a plastic processing equipment, has a wide range of application fields and numerous advantages. However, for users, selecting the appropriate equipment and performing proper operation and maintenance is crucial. With the continuous development and innovation of technology, it is believed that the performance and application fields of the three-layer co extrusion blown film machine will continue to expand.

The mold head is a key component for controlling the thickness and width of the film. The design of the mold head is very important, as it needs to be adjusted according to production needs and product requirements. There are multiple discharge ports inside the mold head, through which three different plastics are extruded, and the flow rate and pressure of each plastic raw material can be controlled to ensure the consistency of the blown film quality.

What different thicknesses of films can the three-layer co extrusion blown film machine produce?

Ultra thin film: The three-layer co extrusion blown film machine can produce very thin films, usually with a thickness of less than 10 microns. This type of film has high transparency and is suitable for packaging food, cling film and other fields.

Thin film: The thickness of the thin film is generally between 10 microns and 100 microns. Thin films have good flexibility and transparency, and can be used for food packaging, agricultural films, building films, etc.

Medium thin film: The thickness of medium thin film is generally between 100 microns and 500 microns. The medium film is relatively thick and can provide good tear resistance and physical strength, suitable for plastic films, handbags, shopping bags, etc.

Thick film: The thickness of thick film is generally above 500 microns. Thick film has high toughness and physical strength, is resistant to high temperature and corrosion, and is suitable for fields such as sewage treatment, liquid storage tanks, waterproof films, etc.

The three-layer co extrusion blown film machine installs three extruder heads on a production line, each corresponding to different extrusion packaging. Through their independent feeding systems, plastic particles are heated and melted, and evenly extruded through distribution devices. After extruding multiple layers of molten film, the film tube is blown, expanded, cooled, and pulled and rolled by auxiliary devices through the air mechanism generated by synchronous three-layer film production, enabling the film to be formed.

The tension control system is a device used to control the tension of thin films. In the production process, tension control is very important as it can affect the tensile performance and flatness of the film. The tension control system usually consists of a tension sensor and a tension adjustment device. The tension sensor can detect the tension of the film in real time and feedback the detected signal to the tension adjustment device, which controls the tension of the film through the adjustment device.