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How does LDPE Shrink Film work during the heat-shrinking process to create a secure covering around products?
LDPE Shrink Film is designed to contract when exposed to controlled heat, allowing it to fit closely around the products being packaged. During the packaging process, the film is first placed around an individual product or a group of items. The wrapped product then passes through a heat-shrink tunnel or receives heat from suitable equipment. As the temperature reaches the film's specified shrink range, the material contracts and forms a tighter covering around the product. After cooling, the film retains its new shape and provides a neat, close-fitting package. The quality of the final result depends on factors such as film thickness, shrink characteristics, temperature, heating time, airflow, and packaging machine settings. Proper adjustment of these parameters helps achieve consistent wrapping, secure product grouping, and an attractive packaging finish.
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