With the development of technology and the production of various plastics, the technology of blow molding machines is also rapidly developing through continuous research and transformation, and the presence of blow molding machines can be seen in various industries. Therefore, a variety of film blowing machines were born, such as double-layer co extrusion film blowing machines, three-layer co extrusion film blowing machines, multi-layer co extrusion film blowing machines, PE film blowing machines, PP film blowing machines, and other film blowing machine series, which are widely applicable to various industries and fields. Now, let's understand the purpose of developing a multi-layer co extrusion blown film machine.
In order to meet the special functional needs of plastic film packaging materials in the production process, multiple characteristic materials (such as breathability, waterproofing, insulation, toughness, etc.) are blown and co extruded together to form multifunctional plastic films, and multi-layer co extrusion blown film machines have been developed. The purpose of multi-layer co extrusion blown film machines is to leverage the advantages of multiple materials and avoid some of the drawbacks of single material or single-layer blown film machines.