Packaging Films

In the production of various packaging materials that are converted into pouches, different types of paper with varying grammages and aluminum foil with different thicknesses are used. However, the most diverse layer in the combination of packaging materials are polymer films, which are listed below in terms of frequency and application:

  • Polyethylene Film (PE): This film is the most widely used in the packaging industry due to its sealability and compatibility with food and pharmaceutical products. It is available in both transparent and colored versions. This film is used as a laminated layer for sealing and contact in packaging structures, as well as a single layer in various product packaging. It is commonly found in the inner layer of pouches for products like milk, juice, and shopping bags.

  • Polypropylene Films (PP): These films are either BOPP (Biaxially Oriented Polypropylene) with finishes such as clear, metallized, and pearlescent, or CPP (Cast Polypropylene), which is usually transparent. Examples of products packaged with these films include legumes, cookies, and biscuits. These films are widely used in the printing and packaging industry due to their excellent printability.

  • Polyester Film (PET): Known commercially as Polyethylene Terephthalate (PET), this film is highly valued for its clarity, high heat resistance, tensile strength, and low permeability. It is one of the most commonly used films in pouch manufacturing due to these properties. When used in combination with aluminum foil, PET offers advantages such as increased shelf life, stability, and load-bearing capacity.

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