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  Explanation of tensile film properties Tensile film  is also called stretch film and heat shrink film. It was originally produced with PVC as the base material and DOA as the plasticizer to play a self-adhesive role. Due to environmental protection issues, high cost (relatively large proportion of PE, less unit packaging area), poor stretchability and other reasons, when China began to produce PE stretch film in 1994-1995, it was gradually eliminated. PE stretch film first uses EVA as the self-adhesive material, but its cost is high, and it has a taste, and then develops to use PIB, VLDPE as the self-adhesive material, and the base material is mainly LLDPE, including C4, C6, C8 and metallocene PE ( MPE). Stretch film series: manual stretch film, machine stretch film. Product introduction: Stretch film is also called elastic film, self-adhesive film, packaging stretch film, boxing film, and packing film. When in use, the film itself can be stretched and wrapped with self-visc...

  Stretch wrapping film  is a winding method in which an elastic film is stretched around a wrapper, wrapped tightly, and sealed at its top end at room temperature. Assembling the stretch film for pallet winding can save energy, reduce winding costs, reduce transportation losses and improve logistics efficiency. So, what is the classification of stretch film? Classification of stretch film: 1. Manual stretch film, which is a kind of stretch film that is manually wound. Generally, the stretch film has relatively low quality requirements, and the winding weight is about 4KG, which is convenient for operation. 2. Machine resistance stretch film. This kind of stretch film is a mechanical stretch film, which drives the film roll under the movement of the goods. It has certain requirements for the extension of tensile strength. Generally, the elongation rate is about 300%. The volume and weight are generally 15KG. 3. Machine pre-stretched stretch film, this stretch film is wound by ...

  How to detect the quality of   stretch wrapping film , stretch wrapping film is widely used in the sales and transportation of various products, stretch wrapping film is also called stretch film, toughness and retraction force are two major standards for measuring the quality of stretch film If the quality is not good, the protection effect will not be achieved after the packaging is completed. So how should the quality of stretch film be tested? 1. A micrometer can be used to detect stretched film. It is difficult to accurately grasp by visual inspection alone. Since the diameter of a hair is about 7 filaments, the sensitivity of hand feel is difficult to reach. Some people use a scale to weigh the weight of each roll. In fact, the thickness of the bottom paper of the maintenance film and the glue are different, so it is difficult to accurately grasp the thickness of the 9-filament film because a layer of glue is applied to the reverse side, so it should reach 11-filament i...