PP (polypropylene) is a thermoplastic resin characterized by its chemical resistance, low density, and non-toxic, odorless nature; it is widely used in food and medical packaging applications.
PP plastic ampoules are produced via an injection molding process, in which PP granules are melted at high temperatures, injected into a mold, and subsequently cooled and demolded once solidified.
This process allows for precise control over the ampoule's wall thickness (with a tolerance of ≤0.2 mm), thereby ensuring excellent sealing integrity. Furthermore, the surface supports screen printing, enabling the application of information such as brand logos and usage instructions. The base of the ampoule is typically fitted with a bottom plug to prevent liquid leakage during transit.
