Liners are the most familiar and significant use of alufoil due to its unique combination of barrier, embossing, deadfold and web strength properties.
The total barrier nature of an alufoil laminate is well illustrated by the retention of the added aroma when menthol is added to a cigarette liner laminate. The foil enables the menthol to permeate within the tobacco but prevents it from escaping to the outside of the pack. Also, added product identity can be given by the use of embossed designs – textures, lacquer colours and logos.