缠绕包装膜（Wrappingfilm），又叫自粘膜（Selfadhesivefilm）、弹性膜（Elasticfilm），还叫拉伸膜（Stretchedfilm）。它是一种本身具有良好粘弹性的薄膜，包装时采用缠绕拉伸的方法，使之紧贴于包装件上得到包装的薄膜。它同包装件表面紧紧的贴合，利用其本身具有的弹性和 Wrapping film, also known as self-adhesive film (Selfadhesivefilm), elastic film (Elasticfilm), also called stretch film (Stretchedfilm). It is a kind of film with good viscoelasticity itself. When wrapping, it adopts the method of wrapping and stretching to make it close to the package to obtain the film. It closely with the surface of the package, using its own flexibility and