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

The three-layer co extrusion blown film machine is an advanced plastic film production equipment that achieves the organic combination of multiple materials through three-layer co extrusion technology, producing plastic films with various properties and functions. It has broad application prospects in packaging, agriculture, and construction industries, and can meet the needs of different fields for plastic films. With the continuous progress of technology and the increasing market demand, it is believed that the three-layer co extrusion blown film machine will be more widely used and developed.

A three-layer co extrusion blown film machine is a device that uses co extrusion technology to extrude multiple different resins together and form a three-layer film. It consists of three independent extruders, each with its own screw and storage device, which can extrude different resins separately. This design allows for independent control of membrane materials in different layers to achieve better processing results.

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

The three-layer co extrusion blown film machine can produce thinner films, such as films smaller than 0.1mm, such as 0.01mm, 0.02mm, etc. This type of film is generally used for packaging items such as food, medicine, cosmetics, etc. that require preservation, moisture resistance, and oxidation resistance. They can effectively extend the shelf life of food and other items, and have good transparency and brightness, showcasing the appearance and quality of products.

Secondly, the three-layer co extrusion blown film machine can also produce some medium thickness films, such as films ranging from 0.1mm to 0.5mm. This type of film is generally used to make various packaging bags, shopping bags, garbage bags, etc. These bags usually need to have a certain level of toughness and load-bearing capacity, able to withstand certain tensile and compressive forces. In addition, medium thickness films can also be used to make agricultural films, building films, plastic films, etc., to cover farmland, construction sites, or other places that require protection.

The three-layer co extrusion blown film machine can also produce thicker films, such as films larger than 0.5mm. This kind of film is generally used to make some special products, such as industrial foam board, thermal insulation materials, etc. These products typically require a large thickness and strength to withstand significant forces and temperature changes, protecting the coating from damage.

The three-layer co extrusion blown film machine usually consists of an extruder, co extrusion head, cooling and stretching system, traction system, winding system, and other parts. The overall structure of the equipment is compact, with a small footprint. The heating system of the three-layer co extrusion blown film machine is precisely controlled, and the heating temperature and extrusion speed can be adjusted as needed to ensure uniform resin melting and stable film quality.

In the process of three-layer co extrusion blown film machine, special attention needs to be paid to some key technologies. Firstly, the performance and control of the extruder. The extrusion capacity and temperature control of an extruder are crucial for the extrusion and plastic deformation of thin films. Next is the design of the mold head and the cooling method. The design of the die head should be reasonable to ensure the uniformity of film extrusion and the accuracy of thickness control; The cooling method should be sufficient to ensure rapid cooling of the film and avoid deformation or fracture of the plastic film due to overheating. Next is the control and adjustment of the stretching roller.