The sealing must ensure airtightness and tightness in the presence of contaminants. The design of the film must take into account the sealing temperature and hot tack properties which measures the heat-sealing strength between the films. However, they are designed considering the product to be packaged, the packaging machine, the transport and handling phases of the packaging. The sealing layers are available as follow: low density polyethylene, metallocene hexene polyethylene (C6), obtainic polyethylene (C8), C8 plastomers, EVA copolymer.
The peelability function is achieved in two different ways: (1) peelability of the layers due to incompatibility (easy peel) where the added additive creates a hermetic seal but easy to open with different forces according to the customer's requests (generally from 3 -6 N / 15mm); (2) peelability due to breaking of the layers (burst peel) where the opening force is unique and characterized by a high value at the beginning which then decreases after opening. All peelables are designed based on the welding surface. They are available for: polypropylene (PP), polystyrene (PS), expanded polystyrene, polyethylene terephthalate (PET).
The laminates used for this type of application need to have a high resistance to perforation and high seal strength to avoid contamination. It is crucial to have a high property of resistance to shocks that must be absorbed by the internal polyethylene film in contact with the contents inside.
Bag in box
For this type of application, we supply films of polyethylene and EVA with properties suitable to be used in the panel assembly process.
backsheet
Polyethylene film suitable of being laminated with aluminium providing a protective and wrapping function.
electronics
Medium density films suitable for bottle label printing. Available thicknesses up to 150 m and bands up to 2040 mm. A key feature is the high planarity of ours film that allows our customers a high productivity rate during processing.
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