Patent name Packaging sheet used for packaging pourable foods Patent applicants The Lira Laval Group and Finance Co., Ltd. Principal applicant Address Swiss Poly Inventor L. Guidotti; A. Melissa; E. May Sorry; T. Luo Man; R. Norenstam Application (patent) No. 02822173.7 Application date 2002.10.31 Award date Approval notice number 1582244 Approval announcement date 2005.02.16 Manual Disc number D0507 Main classification number B65D5/42 B65D5/42; B31B1/25 division Original application No. of priority items A sheet (2) for packaging foods and having a plurality of folding lines (4) formed by compressed impressions, the folding line (4) ) Having a concave profile on the surface (23) of the material (2) that is towards the outside of the final packaging (17) and a non-raised profile on the opposite surface (25); the decorative part (5) has a printed area ( 36), which at least partially encloses one or more fold lines (37) so that optically detectable alignment marks (18) can be formed in contrast with them. Sovereignty item 1. A packaging sheet (2) for packaging a pourable food product and having a plurality of folding lines (4); characterized in that the folding line (4) is the A compression line having a concave profile on the surface and a non-convex profile on the second surface of the sheet.
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