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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...

  Zhanhuixin is a professional   stretch film manufacturer . The surface tension of the stretch film depends on the free energy of the plastic film, and the surface energy of the stretch film depends on the molecular structure of the film itself. There are many factors influencing the surface tension, so what are the factors that affect the surface tension of the stretch film? 1. Non-polar polymer, its surface free energy is small, the surface wet tension is low, generally 30 dyne/cm effect. Theoretically, if the surface tension of the object is lower than 33 dyne/cm, ordinary inks or adhesives cannot adhere firmly, so the surface must be treated. 2. The transfer of the aluminized layer will occur when aluminizing, and the transfer of the glue layer will occur when applying glue. The main measure to prevent corona on the reverse side of the film is to adjust the pressure of the rubber pressing roller before the corona treatment roller. The pressure at both ends must be the sam...

  The viscosity of PE stretch film is closely related to the shelf life. The viscosity is the viscosity of the  stretch wrapping film . The viscosity depends on the firmness of the goods. The stretch wrapping film packaging must be actively developed to improve its quality and efficiency. At present, most of the packaging machines in food and medical packaging consumer equipment are relatively backward products. In addition to increasing the speed, it is also necessary to improve the versatility of the pillow packaging machine so that it can be matched with the metering device to integrate bag making and filling. Filling, printing, and counting are integrated, and it can also consciously correct, consciously alarm to maintain the effect, and reduce loss. Stretch wrapping film is a packaging method that uses mechanical stretching devices or manual stretching of the film to force the deformation stress to wrap the goods at room temperature for transportation and storage. Since i...

  PVC stretch film  is used as packaging film wrapping, without stretching force. It is mainly used in industrial applications such as wire packaging. It used to be a material containing toxic substances. Now it has adjusted its processing technology to meet environmental protection requirements. PE stretch film, also known as stretch film, has the function of stretching and shrinking. It is made of environmentally friendly base material and has high transparency. It is generally used for moisture-proof, bulk cargo collection and fixation. Stretch film, also called stretch film, heat shrinkable film, is the first domestic PVC stretch film to be produced with PVC as the base material and DOA as the plasticizer and self-adhesive. Due to environmental issues, high cost (relative to PE's high proportion, less unit packaging area), poor tensile properties, etc., when the PE stretch film was going to be eliminated in 1994-1995. The PE stretch film first uses EVA as the self-adhesive...

  Stretch wrapping film  is a kind of transparent, elastic, high-strength, non-toxic and odorless polyethylene plastic film, which meets the international environmental and health quality standards. It has the advantages of toughness, puncture resistance, transparency and self-adhesiveness. No matter it is used for stable packaging of goods or cargo pallets, it can be waterproof, moisture-proof, wear-resistant, reduce labor costs, improve efficiency, and achieve the purpose of protecting goods and saving costs. The stretch wrapping film is strong, has high durability and penetration strength, good self-adhesiveness, transparent, does not increase the volume of the goods after packaging, is shock-resistant, waterproof and moisture-proof, and has strong protection. It is a very popular packaging in the world. form. Stretch film is widely used for wrapping food, tobacco, medicine and other products. There are various types and functions of stretch film. PE stretch film is one of ...