Compared with other conventional polyolefin heat shrink films, this film has the characteristics of being particularly suitable for use in high-speed pillow packaging. It has excellent heat sealing performance and good static sealing performance. It performs exceptionally well in packaging products such as instant noodles and milk tea. The packaging effect is snug and the packaging speed exceeds 250 packages per minute. It is widely used in areas such as dairy product collective packaging and noodle packaging. Generally speaking, this film is mostly used in a single sheet form, but there is no strict distinction. It depends on the specific actual usage.