| 摘要 |
A multilayer laminated film for packages, constituted by a first layer (511) made of plastic material and by at least one second layer (512, 513) made of material chosen among plastic material, metallic material, paper-like material or equivalent materials, each layer being coupled to the adjacent layer by means of an intercalated layer (15) of adhesive material, the multilayer laminated film (510) having, on at least one face (517) of the first layer of plastic material (511), a plurality of continuous, parallel, side-by-side incisions (518), which are suitable to facilitate a reduction of the breaking load at right angles to the direction of the incisions (518), the incisions (518) affecting partially the thickness of the first layer and being obtained by removing material; the first layer (511) being made of oriented polypropylene or polyester, the at least one second layer (512, 513) comprises a second layer (512) made of oriented polyamide or polyester and a third layer (513) made of polypropylene or polyethylene, the second layer (512) being provided with the incisions (518) on its face (517) that is directed toward the third layer (513). |
