There are several sealing techniques used in packaging to ensure the integrity, safety, and freshness of various products. Following is the list of some of the different sealing techniques:
1. Heat Sealing: Heat sealing is one of the most widely used sealing methods. To heat seal a package, heat is applied to a thermoplastic material, such as polyethylene or polypropylene, to create a bond between two surfaces. Heat sealing can be achieved through equipment like heat sealers, impulse sealers, or continuous band sealers.