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What is an Extrusion Lamination Machine?
What is an Extrusion Lamination Machine?
The extrusion lamination machine is a film converting equipment that combines two films with molten resin.extrusion lamination machine It uses a variety of different kinds of resins that are extruded through computers-controlled dies to create multi-function layers. These can then be bonded to other films, making multi-layer flexible packaging. The system could also be used in combination with adhesive lamination to provide hybrid adhesive/extrusion-based structures.
The most common type of extrusion lamination is called an extrusion coating or a sandwich laminate. It is a process in which the molten resin acts as a glue that sandwiches a secondary substrate material on both sides. The substrate materials can be woven polypropylene, paper, aluminium foils, or cellulose. This type of extrusion lamination can be achieved using either co-extrusion or single-layer extrusion. In the case of co-extrusion, more than one extruder is used and the individual melts from each extruder are combined together in a single manifold die to form an extended multi-layer extrusion.
During the coating process, a molten resin is extruded through the manifold to coat a web of a chosen substrate. This molten resin is then cooled to form a plastic layer that bonds to the auxiliary material. This enables the production of high-quality flexible packaging products, such as food and beverage packaging. The main advantage of extrusion lamination is that it can achieve the same quality as a cast film process, but with lower energy costs and fewer materials.
In addition, the extrusion lamination machine is capable of producing a very thin layer of molten resin that can be used as a bonding agent to other materials. The process is very popular with manufacturers of breathable film for hygiene applications and construction materials, among others. It is particularly suited for use with polypropylene because the material has good tensile strength and can withstand high levels of stress without failing.
UFlex extrusion lamination machines are designed to be highly efficient and versatile for many applications. They are ideal for a range of end-uses, including liquid packaging, photographic film, flexible bags, mill and industrial wraps, and transport packaging. The machinery is also suitable for printing and coating applications.
The machine is equipped with high quality Japanese made extruder, single or co-extruder and T-die. It performs precisely and stably on coating gauge control as the various resin go through the feed block and join into the T-die after being melted. The side screw has corrosion resistance treatment to ensure it is fine to work with acid copolymer resin, like EVA, EMAA and Surlyn.
The machine features non-stop turret technology on unwind and rewind units with automatic splicing system to increase productivity. Its advanced PLC system and HMI provides users with an easy-to-use interface. Its automatic lubrication and exhaust system reduces residuals and wastes.
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