• Polyethylene

  Polyethylene is a polymer consisting of long chains of the monomer ethylene. The ethene molecule (known almost universally by its common name ethylene) C₂H₄ is CH₂=CH₂, Two CH₂ groups connected by a double bond. Polyethylene is created through polymerization of ethene. It can be produced through radical polymerization, anionic addition polymerization, ion coordination polymerization or cationic addition polymerization. This is because ethene does not have any substituent groups that influence the stability of the propagation head of the polymer. Each of these methods results in a different type of polyethylene.

• Polypropylene (PP)

  Polypropylene is a thermoplastic polymer, made by the chemical industry and used in a wide variety of applications, including packaging.

• Polyester

  Polyester is a category of polymers which contain the ester functional group in their main chain. Polyesters may be produced in numerous forms such as fibers, sheets and three-dimensional shapes. Polyesters as thermoplastics may change shape after the application of heat. Polyester fibers have high tenacity and low water absorption and minimal shrinkage in comparison with other industrial fibers.

•   Polyvinylidene chloride

  Polyvinylidene chloride is a polymer derived from vinylidene chloride. Polyvinylidene chloride is applied as a water-based coating to other plastic films such as biaxially-oriented polypropylene (BOPP) and polyester (PET). This coating increases the barrier properties of the film, reducing the permeability of the film to oxygen and flavors and thus extending the shelf life of the food inside the package.

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