Canning and Fish Packaging Technology

Unit 10 - Manufacture of plastic packages

10.1.Manufacture of plastic packages
Plastics used in packaging are mainly thermoplastics which soften, when heated in contrast to thermo set plastics that do not soften. Conversion of plastics into packaging usually relies on this thermoplastic property. Heat makes the plastic to become soft and in this high viscosity form, the soft plastic is made into the desired shape, which may be summarized as below.