MULTILAYER SHEET EXTRUSION
A high volume plastics manufacturing process
Multi-layer sheet extrusion is a high volume plastics manufacturing process that involves mono or multi-layer co-extrusion of up to 13 layers of plastic. Co-extrusion is the application of one or more layers on top of a base material with the objective of adding properties such as UV-absorption, texture, energy reflection, oxygen and gas barrier, etc.
Multi-layer sheet extrusion involves thermoforming whereby plastic sheet is heated until soft, and formed via a mould into a new shape. Common materials include PET, high-density polyethylene, polystyrene and ABS (Acrylonitrile Butadiene Styrene).
Sheet is differentiated from film by its thickness - with sheets over 0.25mm thick being considered a sheet. Thinner plastic sheets are generally thermoformed into plastic trays, clam shells, bowls or cups.
Visy also offers industry leading, contamination free ‘form fill seal’ packaging solutions, including horizontal form fill seal (HFFS) or vertical form fill seal (VFFS) processes.
For more information about Visy multi-layer sheet extrusion services, enquire today.