Oriented polystyrene film (OPS film) is widely used in the packaging field. There are many production companies in my country.

there are many types of heat shrinkable films, including polyester film (pet), multi-layer coextruded polyolefin heat shrinkable film (pof), oriented polystyrene film (ops), polyvinyl chloride film (pvc), etc. oriented polystyrene film, also known as ops film and oriented polystyrene heat shrink film, refers to a film obtained by directional stretching using general-purpose polystyrene (gpps) as…