Laminated plastic and metal film suitable for providing airtight packaging for articles soup cubes and the like

摘要

Disclosed is a plastic film suitable for packaging three dimensional objects, such as soup cubes . Such films comprise a base film that is metallised on one side, and which comprises an oriented polypropylene or PET film . On the metallised side of the film there is a pattern coating of a sealing lacquer that seals at a raised temperature on some areas, and the areas of the film where the sealing liqueur is not applied are provided with an overlacquer that is also pattern coated. Preferably the polypropylene or PET film is oriented biaxially and may have a primer or tie layer between the metallization and the printing . The base film may be a compact film, and may have cavities in the form of vacuoles or produced by foaming .