Package sleeve, package and method for manufacturing a package

A package sleeve made of a composite material for the manufacture of a package, comprising:

• a front surface,
• a rear surface,
• two side surfaces,
• base surfaces and gable surfaces which are arranged on opposite sides of the two side surfaces, the front surface and the rear surface, and
• a longitudinal seam which connects two edges of the composite material to form a circumferential package sleeve,
• wherein the package sleeve has several fold lines,
• wherein the two side surfaces in each case have a secondary fold line running through the side surface, and
• wherein the package sleeve is exclusively folded along both secondary fold lines,
• wherein the package sleeve is open both in the region of the base surfaces and in the region of the gable surfaces,
• wherein the composite material includes at least one layer of paper or paperboard which is covered on an edge of the longitudinal seam running within the package sleeve,
• wherein none of the fold lines intersect with one another but define extrapolated intersection points and wherein there is a region without fold lines between the fold lines and the intersection points extending a minimum distance in the range between 0.1 mm and 2.0 mm, and
• wherein at least one free-form surface is provided, the free-form surface extending between the base surfaces and the gable surfaces, and wherein two fold lines, which are curved in sections and straight in other sections, laterally limit the free-form surface towards two adjacent surfaces from the group of the two side surfaces, the front surface and the rear surface.