Cast stretch film is a type of plastic packaging film produced using the cast extrusion process. Primarily made from linear low-density polyethylene (LLDPE), it is manufactured by uniformly extruding molten plastic, followed by cooling, setting, stretching, and winding. Thanks to the casting process, the film features uniform thickness, a smooth surface, and stable performance.
Cast stretch film is primarily used for wrapping and securing goods; it utilizes the film's inherent stretchability and recovery force to tightly bundle products, preventing them from scattering, shifting, or colliding during transport and storage. Additionally, the film possesses self-adhesive properties, allowing layers to bond without the need for glue, thereby enhancing packaging efficiency.
Compared to other types of stretch film, cast stretch film offers advantages such as high transparency, excellent stretchability, and strong tear resistance. It allows for a clear view of the packaged goods, facilitating warehouse management and logistics identification. Its stable processing characteristics also make it suitable for use with automated packaging equipment, meeting the demands of high-volume packaging operations.