Duplex, triplex or multi-layered packaging is laminated packaging, which is used for packaging of products, mostly for food, cosmetic and other types of industry.

For production of duplex bags two same or two different materials are used. These materials are used for this: PP, PP metallised, aluminium, cast, PET, PET metallised, PA and PE.

They have very good barrier features and firm consistency. They provide good preservance of quality and aroma of the product, as well as good visual presentation. Duplex bags are used for packaging of wide spectrum of products, including bakery products, various food products such as frozen vegetable and meat, dried fruit, and other general purpose groceries.

Triplex bags are produced from three different types of material. Some of the examples of triplex bags include PET/metPET/PE, PET/metPP/PE. They are very firm, and strongly welded, with great barrier features. As duplex, they provide good preservance of quality and aroma of the product, as well as good visual presentation, but unlike duplex bags, triplex bags prevent light impact to the product inside. Triplex bags are used for products which are specially sensitive to external impacts, such as coffee, spices and honey.
10-DUPLEX TRIPLEX vrećice eng