Fuente: WIPO "tomato" A laminated packaging material for packaging of liquid or semi-liquid food products comprises: a bulk layer comprising cellulose-based material, preferably paper or paperboard, a first outermost liquid-tight, heat-sealable thermoplastic layer, arranged on the outside of the bulk layer to constitute the outside of a package formed from the packaging material, a second innermost liquid-tight, heat-sealable thermoplastic layer arranged on the inside of the bulk layer to be in direct contact with the filled food product, and a barrier layer comprising a barrier substrate layer coated with a physical vapour deposited barrier coating comprising partially oxidised aluminium, the barrier coating having a thickness of 8 to 40 nm and a transmittance of 20 to 60%, the barrier layer being laminated between the bulk layer and the second, innermost liquid-tight, heat-sealable thermoplastic layer.