Sheets for producing food packages and packages made with the materials

The name of the patent for the production of food packaging sheet and the packaging made of the patent patent applicants Troll Laval Group and Finance Co., Ltd. Principal Applicant Address Swiss Ply Inventor P. Scala Bailey; L. Taco Nigeria; G. Galavoti; R. Norenstin Application (Patent) No. 02821654.7 Date of Application 2002.10.31 Certification Date Approval Notice No. 1578744 Date of Validation Notice 2005.02.09 Manual CD-ROM D0506 Main Classification Number B65B41/18 B65B41/18 division Original application number Priority PRIOR ART A sheet (2) for producing a food package (17) having a plurality of optically detectable alignment marks (18); each mark having mutually parallel and The first and second portions (37a, 37b; 37d) perpendicular to the feeding direction of the sheet (2), and the inclined portion (37c; 37e) between the parallel portions, thereby forming a broken Z-shape Line (37), which can be used to determine the position of the sheet in the feed direction and in the transverse direction. Sovereignty item 1. A sheet (2) for producing a food package comprising a plurality of fold lines (4) and at least one optically detectable alignment mark (18); characterized in that the alignment mark ( 18) Including at least two parallel portions (37a, 37b) perpendicular to the feeding direction of the sheet (2), and an inclined portion (37c) between the parallel portions.