B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 27/32 (2006.01) B32B 3/30 (2006.01)
Patent
CA 2589719
A multilayer laminated film for packages, constituted by a first layer (11, 111, 211, 311, 411, 511, 611, 711) made of plastic material and by at least one second layer (12, 112, 212, 312, 412, 512, 612, 712, 213, 313, 413, 513, 613, 713, 614, 714) made of material chosen among plastic material, metallic material, paper-like material or equivalent materials; each layer is coupled to the adjacent layer by means of an intercalated layer (15) of adhesive material. The multilayer laminated film (10, 110, 210, 310, 410, 510, 610, 710) according to the invention has, on at least one face (16, 216, 416, 616, 117, 317, 517, 717) of the more rigid layer of plastic material (11, 111, 211, 311, 412, 512, 613, 713), a plurality of continuous, parallel, side- by-side incisions (18, 18a, 18b, 18c, 18d, 18e, 118, 218, 318, 418, 518, 618, 718), which are suitable to facilitate a reduction of the breaking load at right angles to the direction of the incisions (18, 18a, 18b, 18c, 18d, 18e, 118, 218, 318, 418, 518, 618, 718). The incisions (18, 18a, 18b, 18c, 18d, 18e, 118, 218, 318, 418, 518, 618, 718) are obtained by removing material and affect only partially the thickness of the more rigid layer.
L'invention concerne un film laminé multicouche pour emballages, constitué d'une première couche (11, 111, 211, 311, 411, 511, 611, 711) en matière plastique, et au moins d'une seconde couche (12, 112, 212, 312, 412, 512, 612, 712, 213, 313, 413, 513, 613, 713, 614, 714) faite d'un matériau choisi parmi une matière plastique, un matériau métallique, un matériau imitant le papier ou des matériaux analogues. Chaque couche est couplée à une couche adjacente par une couche intermédiaire (15) constituée d'un matériau adhésif. Le film laminé multicouche (10, 110, 210, 310, 410, 510, 610, 710) de l'invention présente, sur au moins une face (16, 216, 416, 616, 117, 317, 517, 717) de la couche en matière plastique (11, 111, 211, 311, 412, 512, 613, 713) plus rigide, une pluralité d'incisions (18, 18a, 18b, 18c, 18d, 18e, 118, 218, 318, 418, 518, 618, 718) continues, parallèles, juxtaposées, qui réduisent de manière appropriée la force de rupture aux angles droits relativement au sens des incisions (18, 18a, 18b, 18c, 18d, 18e, 118, 218, 318, 418, 518, 618, 718). Les incisions (18, 18a, 18b, 18c, 18d, 18e, 118, 218, 318, 418, 518, 618, 718) sont réalisées par suppression de matériau et n'influent que partiellement sur l'épaisseur de la couche plus rigide.
Bertolino Noemi
Zaggia Carlo Alberto
Alcan Packaging Italia S.r.l.
Bcf Llp
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