What is Heat Seal Packaging?

Heat sealing is a packaging process that joins compatible thermoplastic layers using controlled heat and pressure. It is commonly used for pouches, bags, films, sachets, and flexible packaging. The quality of the seal depends on temperature, pressure, dwell time, material structure, and equipment settings. Proper sealing helps prevent leakage and contamination. Heat-sealed packaging is widely used in food, pharmaceutical, chemical, and consumer product applications.