Factors affecting the heat seal strength of heat shrinkable film

PE heat shrink film manufacturers remind us that shrink film brings great convenience to our production and life, especially in the packaging industry. What are the factors that can affect its heat seal strength? The heat sealing temperature directly affects the heat sealing strength of plastic composite packaging products, and it is also one of the most important reasons. The heat sealing time of the automatic packaging machine or the old bag making machine is determined by the machine speed. Under the premise of constant pressure, the longer the time, the greater the intensity. Time is also one of the factors affecting intensity. In the process of heat sealing, the heat sealing pressure is required to be moderate and uniform. If the heat sealing pressure is insufficient or uneven, air bubbles will be generated, resulting in poor heat sealing. The influencing factors of the heat-seal strength of the heat-shrinkable film are generally the above. Therefore, we must pay attention to meeting these requirements when we produce, so that the products produced are qualified. Next: The difference between new material and recycled material for shrink film Previous: What are the advantages of stretch stretch film