Packaging film and method for manufacturing packaging film

The present invention provides a packaging film comprising at least one aqueous oxygen barrier layer, further comprising a nanostructure layer deposited on the water-oxygen barrier layer, the nanostructured layer is an outer layer of packaging film, the nanostructured layer a plurality of distributed surface protrusions, the projections in the surface of the nanostructured layer has at least a length of 1-100 nm direction, the protrusion height is 10-300 nm, the protrusion of the adjacent as the gap between the 1-100nm. This kind of film such that the adhesion of water droplets to the surface of the nanostructured layer is much smaller than the surface tension of the water droplet itself, so it is easy to tension into spherical droplets, thereby increasing the contact angle of water droplet nanostructure layer, the contact angle greater than 150 degrees, thereby making difficult water droplets on the surface of the nanostructured adsorption layer, thereby improving the water-oxygen atmosphere packaging of the film surface, so that moisture intrusion difficult, thereby increasing the life of the package film.