07-11/2023
Extruders: The machine typically incorporates three extruders, one for each layer. Each extruder is responsible for melting and extruding a specific plastic material. These materials can be chosen based on the desired properties of each layer, such as strength, flexibility, or barrier performance.
Cabezal de matriz: El cabezal de matriz es un componente crucial que da forma a los materiales plásticos fundidos en una estructura tubular. Tiene canales separados para cada capa, lo que permite la extrusión simultánea de tres materiales diferentes. El diseño del cabezal del troquel determina el perfil y el ancho del grosor de la película.
Co-extrusion: The molten plastic materials from the three extruders are fed into the die head, where they merge together to form a three-layered structure. The materials flow through their respective channels and combine to create a seamless tubular film.