SEALED PACKAGE FOR POURABLE FOOD PRODUCTS AND PACKAGING MATERIAL FOR PRODUCING SEALED PACKAGES FOR POURABLE FOOD PRODUCTS

摘要

A sealed package for pourable food products, comprising a quadrangular bottom panel with opposite first front edge and a second rear edge; a quadrangular top panel opposite to bottom panel and comprises a third front edge and a fourth rear edge; a front panel between first and third edges; and a rear panel between second and fourth edges; the distance between first and third edges is smaller than the distance between second and fourth edges; top panel angled with respect to a first plane defined by first and second edges; first and third edge define a theoretical reference plane; front panel comprises opposite fifth and sixth edges between first and second edges; at least one of fifth and sixth front edge extends at least partially on opposite side of theoretical plane with respect to rear panel; front panel comprises at least a first region on opposite side of theoretical plane.

主权项

1. A sheet packaging material for producing a sealed package of a pourable food product, comprising:
at least one first crease line and one second crease line; said first crease line comprising a first portion which is adapted to define a top front edge of a top panel of said sealed package; said second crease line comprising a second portion which is adapted to define a bottom front edge of a bottom panel of said sealed package; a third crease line which extends between respective third portions of said first and second crease lines; a fourth crease line which extends between respective fourth portions of said first and second crease lines; said first crease line further comprising a fifth portion interposed between said first and respective third portions, and a sixth portion interposed between respective said first and fourth portions; said second crease line further comprising a seventh portion interposed between said second and said respective third portions, and an eighth portion interposed between said second and said respective fourth portions; said third and fourth crease lines, and said third and fourth portions being adapted to bound a rear panel of said package, once said packaging material has been folded along said third and fourth crease lines, and along said third and fourth portions; said third and fourth portions of said first crease line being adapted to define a top rear edge of said sealed package; said third and fourth portions of said second crease line being adapted to define a bottom rear edge of said sealed package; said second, third, and fourth portions of said second crease line defining a first theoretical reference plane once said packaging material has been folded along said second, third, and fourth portions; the distance between said third and fourth portions being greater than the distance between said first and second portions, so that the distance between said top rear edge and said bottom rear edge is greater than the distance between said top front edge and said bottom front edge of said sealed package; a fifth and a sixth crease lines extending, at least partially, within a first area which is bounded by a first reference theoretical segment and a second reference theoretical segment, and by said first and second portions; said first reference theoretical segment extending between a first end of said second portion and a second end of said first portion; said second reference theoretical segment extending between a third end, opposite to said first end, of said second portion and a fourth end, opposite to said second end, of said first portion; said fifth and sixth crease lines and said second and first portions being adapted to bound a front panel of said package, once said packaging material has been folded along said fifth and sixth crease lines and said second and first portions, said first and second portions defining a second theoretical reference plane once said packaging material has been folded along said first and second portions; said fifth and seventh portions, said fifth crease line, and at least one part of said third crease line being adapted to define a first lateral concave panel extending from said front panel to said rear panel of said package, once said packaging material has been folded along said fifth crease line, said fifth and seventh portions and said at least one part of said third crease line; said sixth and eighth portions, said sixth crease line and at least one part of said fourth crease line being adapted to define a second lateral panel extending from said front panel to said rear panel of said package, once said packaging material has been folded along said sixth crease line, said sixth and eighth portions and said at least one part of said fourth crease line; and said fifth and sixth crease lines and said second and first portions being configured so that the front panel bounded by said fifth and sixth crease lines and said second and first portions, once the packaging material has been folded along the fifth and sixth crease lines and said second and first portions, is a convex panel curved outwardly of the second theoretical reference plane.