Why Film Tension Is Important in a Shrink Film Wrapping Machine
Film tension is one of the most critical yet often overlooked factors in packaging performance. It directly affects package appearance, seal quality, and operational efficiency. In the middle of evaluating packaging performance and consistency, a shrink film wrapping machine relies heavily on proper film tension control to deliver reliable, professional results. When tension is balanced correctly, the machine produces secure, visually appealing packages while reducing waste and downtime. Understanding Film Tension Basics What Film Tension Means Film tension refers to the amount of pull applied to the shrink film as it moves through the machine. This tension must remain consistent from film unwinding through sealing and shrinking. Too much tension can stretch or tear the film, while too little can cause wrinkles or loose wraps. Why Consistency Matters Consistent tension ensures the film lays flat around the product before heat is applied. Uneven tension often leads to poor seals,...