BOPP stands for Biaxially Oriented Polypropylene. This is a variant of polypropylene. Polypropylene is a thermoplastic polymer, also known as polypropylene. It is an ideal printable surface and can be used to make labels and stickers, textiles, and a variety of plastic parts and materials. BOPP is flat polypropylene. BOPP aims for a system that stretches in two directions. That's where the "biaxial" part of BOPP comes in. The three most common BOPP film manufacturing processes are the continuous tenter frame process, the simultaneous tenter frame orientation, and the double bubble process. This white paper from China Bopp film manufacturer, one of the oldest BOPP film manufacturers, details these processes.
