What Is Extrusion Lamination

There are numerous advantages of using the extrusion coating process including less expensive raw materials and improved structural.

What is extrusion lamination.

This consists of a large roll a pressure roll and a counter pressure roll cooled by water. Extrusion and lamination coating. Lamination and extrusion are common manufacturing processes used to create a variety of building products including bathroom partitions and lockers. Inside an extrusion coating and laminating line the substrates and melt are nipped at a bonding station.

Extrusion lamination brings two films together using a layer of molten resin extruded through computer controlled extruder dies with advanced gauge controls nuclear gauge monitoring and automatic profile control. The purpose of this. The two films and the molten resin form a multilayer flexible packaging lamination. 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.

Another lamination process uses a lamination press after materials are combined in a thicker structure than film. Extrusion coating is one of the processes used to produce a large range of thin multilayer structures. For extrusion coating only one substrate is used and the extrudate coats the surface and is quenched on a chill roll much like a cast film process. These processes although significantly different can produce materials that look very similar to the untrained eye.

Laminating is an industrial product protection and enhancement process that is integral to numerous different types of parts components and materials involved in industrial manufacturing and production as well as other kinds of industries. Extrusion lamination is a similar process to extrusion coating where the resin is extruded between two substrates and acts as a bonding agent. The difference between extrusion coating and extrusion lamination is the presence of the second or auxiliary web that sandwiches the melt on the second side. Offering multiple extrusion coating laminating lines with varying width capabilities proampac produces a variety of products and substrates for flexible packaging applications.

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. Co extrusion edit co extrusion is again a similar process but with two or more extruders coupled to a single die head in which the individually extruded melts are brought together and finally. Extrusion laminating is a similar process except that the extruded hot molten resin acts as the bonding medium to a second web of material.