Biaxially oriented polyethylene terephthalate (BOPET) films Fatra Tenolan® are extruded films with subsequent biaxial orientation. Films are designed for further processing in the packaging technology, electro-technical industry, for decoration purposes, as separation foils, etc. They are supplied in rolls or cut to size. Films are designed for direct contact with food and meals and they must comply with hygienic regulations in force.
PET (polyethylene-terephthalate) is a hard and clear polymer material with extremely good mechanical features. It shows excellent tear resistance; it can resist to high pressure volumes without braking, which is used in the production of packages for beverages – PET bottles.
PET material is suitable also for the production of extruded foils. Subsequent biaxial stretching of the foil (in both directions) improves significantly the strength in both directions. It forms the required packaging material known for example from gift packs, or as a baking foil. In the foil form, PET is very resistant against water steam and gas permeability providing protection to packaged products, it also resists to effects of oils and fats included in packaged food-stuff.
PET may be combined with other materials and create multi-layer packages, the features of which are modified for the specific application – packaging of aromatic spices, cheese, smoked-meat products, etc. On customer’s request, foils may have different colours, may be imprinted, metal-coated (cosmetic industry, toothpastes), or laminated (packages for pet feedstuff).
Typical examples of PET applications include:
Fibres in textile industry – dressmaking, winter jacket wadding (padding).
Beverage bottles, in particular for sparkling and alcohol-free beverages.
High-speed boiling pouches, precooked food bags, packages for non-perishable food.
PET counts among well recyclable materials. PE bottles sorted from the municipal waste are most frequently reprocessed into fibres.
Aluminium (chemical symbol Al, Latin title Aluminium) is a very light metal of whitish-grey colour, very good conductor of electric current, used widely in electronics and also in alloys for the aircraft industry and many other applications.
Aluminium is used mainly due to its relatively high chemical resistance and low weight. After rolling-down into a thin foil it is known as a kitchen foil called “alobal”, which is used in baking and roasting or as a protective packaging material for various applications.
Aluminium is also used for the production of flexible packaging foils. Aluminium layer is usually steamed onto a plastic foil by electrical discharge in vacuum.
Applications
Packaging PET films – for the production of flexible packages for foodstuff and technical products.
Electro-insulating films – for the production of cables, transformers, and winding insulation of electric motors.
Other films– production of labels, adhesive tapes, siliconized foils, identification and payment cards, office supplies.
