What Is Extrusion Lamination Process

What is the difference.

What is extrusion lamination process.

Extrusion and lamination coating. For example film on film and film on foil laminations would go through the process of dry bonding. Extrusion lamination is a similar process to extrusion coating where the resin is extruded between two substrates and acts as a bonding agent. This consists of a large roll a pressure roll and a counter pressure roll cooled by water.

Lamination and extrusion are common manufacturing processes used to create a variety of building products including bathroom partitions and lockers. When plastic films are involved either as a substrate or as an element in the finished structure the laminating adhesive is often a low density polyethylene applied by extrusion and the process is known as extrusion laminating. A variety of lamination methods are used. In extrusion lamination the molten polymer is.

Extrusion laminating is a similar process except that the extruded hot molten resin acts as the bonding medium to a second web of material. In the extrusion coating of polyethylene a molten web of extruded polymer is applied as a thin coating onto a substrate which is passing continuously through a nip roll assembly see figure 2. Extrusion coating is one of the processes used to produce a large range of thin multilayer structures. The added value of extrusion lamination.

Another lamination process uses a lamination press after materials are combined in a thicker structure than film. The extrusion lamination process can be repeated until the final flexible packaging structure is complete or it can be combined with adhesive lamination to create the final flexible packaging lamination. Inside an extrusion coating and laminating line the substrates and melt are nipped at a bonding station. Both processes allow us to create custom packaging films to meet specific performance criteria.

As an example azdel a glass reinforced thermoplastic composite made with continuous glass mat is produced using an extrusion lamination operation film continuous random orientation glass mat and molten resin are combined in a lamination process using a sandvik double belted. Dry bond lamination is the laminating process used to laminate two substrates both of which are non porous or impervious to filtration. These processes although significantly different can produce materials that look very similar to the untrained eye. There are numerous advantages of using the extrusion coating process including less expensive raw materials and improved structural.