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Laminated PVC is a popular choice for many industries and products including packaging, graphics, transportation accessories and the medical industry. The material can be cut and molded to any shape and is extremely flexible. It also has excellent dimensional stability, making it suitable for use in high-quality packaging applications.
The lamination process is usually a form then bond process where sheets are joined together to produce a 3D geometry using adhesive or thermal bonding techniques, such as Computer-Aided Manufacturing of Laminated Engineering Materials (CAM-LEM) or Ultrasonic Additive Manufacturing (UAM). It can be made from a variety of build material, depending on the method used to create the layers, and can be formed with any of several forming processes, such as CNC milling, laser cutting, and aqua blasting.
Typical materials used in this process include paper, plastics, and metal composites. This technique can be adapted for both rigid and flexible materials.
The main component of a composite laminate is the PVC film that works as the glueline connecting the veneers and preventing them from interfering with one another. It is a crucial component in the assembling procedure of wood-plastic composites, which must be designed to promote heat transfer during hot pressing and ensure that the PVC films melt completely before they penetrate into the veneer. In addition, a pretreatment of the PVC films should be performed to improve their adhesion to the wood veneer and avoid local overheating.
