zhanhuixinpacking

  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...