| 摘要 |
A multilayer laminated film 10 for packages, constituted by a first layer 11 made of plastic material and by at least one second layer 12 made of material chosen among plastic material, metallic material, paper, cardboard or web material, the first layer 11 being more rigid than the second layer 12, each layer being coupled to the adjacent layer by means of an intercalated layer of adhesive material 15, the multilayer laminated film 10 having, on at least one face of the more rigid layer of plastic material, a plurality of continuous, parallel, side-by-side incisions 18 a 18b 18c 18d 18e, which are suitable to facilitate a reduction of the breaking load at right angles to the direction of the incisions 18 a 18b 18c 18d 18e, the incisions 18 a 18b 18c 18d 18e affecting partially the thickness of the more rigid layer and being obtained by removing material, the thickness of the more rigid layer, at the incisions 18 a 18b 18c 18d 18e, being reduced with respect to the thickness of the more rigid layer outside the incisions 18 a 18b 18c 18d 18e, with nature of the material of the more rigid layer material being unaltered. |
