초록 ▼

A method for manufacturing packages (1) for liquid food products, includes a step in which a flexible sheet material member (2) is folded into a tubular shape so that longitudinal strips (6) extends outwardly, and are joined to each other. Along the joined longitudinal strips (6), suitable welding l

A method for manufacturing packages (1) for liquid food products, includes a step in which a flexible sheet material member (2) is folded into a tubular shape so that longitudinal strips (6) extends outwardly, and are joined to each other. Along the joined longitudinal strips (6), suitable welding lines (7, 8) are made so as to form a portion (9) in the form of a channel compartment (10) that is closed at one end, and having its other end in communication with an inside of the package. A a longitudinal breaking line (12) is made in the strips to allow the portion (9) to be partially detached from the package. In the strips (6) a notch (13) is made which allows the detachable portion (9) to be opened at the end opposite to the one in communication with the inside of the package (1).

대표청구항 ▼

[ I claim:] [1.] A method for manufacturing a package for a liquid food product, said method comprising the steps of:unrolling a flexible sheet material, from a web (35), mutually juxtaposing longitudinal strips (6) of the sheet material, folding the sheet into a tubular member (2) such that said lo

[ I claim:] [1.] A method for manufacturing a package for a liquid food product, said method comprising the steps of:unrolling a flexible sheet material, from a web (35), mutually juxtaposing longitudinal strips (6) of the sheet material, folding the sheet into a tubular member (2) such that said longitudinal strips (6) are turned outwards;providing an internal longitudinal welding line (7) and an external longitudinal welding line (8), on said longitudinal strips (6) to join the strips to one another, to define a detachable portion (9), in the form of a channel compartment (10);forming folded edges (2a) at corners of the tubular member (2) to form a substantial parallele piped-shaped package (1) having a pair of opposite sides (4), a pair of opposite faces (3), a bottom and a top, the channel compartment having a lower end in communication with an inside of the package (1);stiffening the folded edges (2a) by providing longitudinal welding lines (5);making a transversal weld on a bottom end of the tubular member (2), at least one transversal lower welding line (16) extending over the detachable portion (9) to define the bottom of the package (1);dosing the liquid food product into the tubular member (2), folding the detachable portion (9) onto a corresponding side (4) of said tubular member (2);transversely welding a top end of the tubular member (2), at least one transversal upper welding line (15) defining a sealed top of said package (1).