A method of bonding two or more layers of the same or different materials into a single unit through heating and pressurization, with or without the use of a binder. Also known as the lamination process, it refers to a forming process in which multiple layers of the same or different materials are bonded into a single unit under heat and pressure. It is commonly used in plastics processing and is also applied in rubber processing. In plastics processing, for thermoplastics, it is commonly used to produce artificial leather products or composite films; for thermosetting plastics, it is an important method for manufacturing reinforced plastics and related products.
Reinforcing materials such as fabrics, glass cloth, and specialty fibers, which have been impregnated with thermosetting resins, are layered and then heated and pressed to produce various laminated products, such as laminated boards. In rubber processing, stacked rubber compounds and fabrics can be laminated into rubber tapes. Laminating can be classified into two types based on processing pressure: the high-pressure method (high-pressure lamination) and the low-pressure method (low-pressure lamination).