Biaxially oriented polyolefin film packaging material

The present invention relates to a packaging material made from a multilayer oriented polyolefin film, the polyolefin film comprising a base layer and at least one first outer layer, whereby the first outer layer is in contact with itself or with the film Contact with the opposite side or contact with the surface of another film. This first outer layer contains an additive that absorbs light in the wavelength range of a laser so that when the laser is used to locally irradiate the film, the temperature of the irradiated area rises, so that the polyolefin of the first outer layer is affected. The irradiated area softens or melts, and adheres to another layer when cooled.