What production needs can the three-layer co extrusion blown film machine meet for different specifications of products?

The three-layer co extrusion blown film machine is an efficient, flexible, and easy to operate plastic product production equipment. It has excellent performance and a wide range of applications, providing reliable production solutions for the plastic products industry. With the continuous progress of technology and the expansion of market demand, it is believed that the three-layer co extrusion blown film machine will receive more development and application in the future.

A three-layer co extrusion blown film machine generally consists of three extrusion units, a die head, cooling rollers, and a winding device. Each extrusion unit has its own screw and heating system, which can control the temperature and extrusion speed separately. The screw continuously rotates to feed plastic particles into the extruder barrel and melts the particles through a heating system. The molten plastic is extruded into the narrow extrusion outlet inside the mold head through the action of high pressure and high temperature in the extruder. The internal flow channels of the mold separate three different materials of plastic flow channels, which are extruded through the extrusion port and cooled by cooling rollers to form three layers of thin film. The film is gently rolled to form a roll like product.

What production needs can the three-layer co extrusion blown film machine meet for different specifications of products?

The three-layer co extrusion blown film machine can produce films of different thicknesses. By adjusting the extrusion speed of the extruder and the size of the die opening, the thickness of the film can be controlled. Generally speaking, a three-layer co extrusion blown film machine can produce film thicknesses ranging from 0.01mm to 0.2mm. According to the requirements of different products, films that meet the requirements can be produced.

Secondly, the three-layer co extrusion blown film machine can produce films of different widths. By adjusting the extrusion amount of the extruder and the design of the die head, the width of the film can be controlled. Generally speaking, a three-layer co extrusion blown film machine can produce film widths ranging from 500mm to 3000mm. According to the requirements of different products, films of different widths can be produced.

In addition, the three-layer co extrusion blown film machine can produce films of different materials. It can simultaneously extrude different types of plastic materials and fuse them together through co extrusion to form multi-layer composite films. Common plastic materials include polyethylene (PE), polypropylene (PP), polyvinyl alcohol (PEVA), polyvinyl chloride (PVC), etc. By adjusting the temperature and extrusion pressure of the extruder, the distribution ratio of different materials can be controlled to meet the material requirements of different products.

The three-layer co extrusion blown film machine can produce composite films with excellent performance. This type of film is usually composed of plastic layers of different materials, each with different characteristics. For example, the outer layer can use materials with high wear resistance and weather resistance, the middle layer can use materials with high strength and toughness, and the inner layer can use materials that are resistant to temperature and corrosion. By selecting a reasonable combination of materials, composite films with various characteristics such as durability, transparency, impact resistance, and barrier properties can be produced.

The three-layer co extrusion blown film machine has multiple advantages. Due to the use of three-layer co extrusion technology, the blown film has good isolation performance, which can to some extent isolate oxygen, water vapor, and odors.