Patent ID: 8404071

Claim:
A process for the high-speed addition of bonded sections to adjacent layers of film; the process comprising: applying a pattern of an ultra-violet curable adhesive to a portion of a substrate film; placing a laminate film in contact with the substrate film such that the ultra-violet curable adhesive is located between the substrate film and the laminate film, the minimum heat distortion temperature for the pair of films being the lesser of a heat distortion temperature for the substrate film and the heat distortion temperature for the laminate film; and exposing the ultra-violet curable adhesive to ultra-violet energy that passes through the laminate film to at least partially cure the ultra-violet curable adhesive at a temperature approaching but below the minimum heat distortion temperature to create a film-tearing bond between the substrate film and the laminate film; whereby a pattern of film-tearing bonds is created between the substrate film and the laminate film.