METHOD AND APPARATUS FOR PACKAGING WITH LASER ENGRAVING Russian patent published in 2013 - IPC B65D33/36 

FIELD: packaging industry.

SUBSTANCE: package which is formed in the process of vertical formation, filling and sealing, comprises rolled material having a first and a second edge parts on the opposite side from the first edge part, welded with a seam to form a tubular packaging with the first sealed end at a first end of the weld and a second sealed end on the second end of the weld. The tubular packing comprises first and second side edges. The package has a structure of a remote material, extending across the outer surface of the rolled material between the first and second edge parts and includes a series of remote material areas separated by areas without removing material, so that the structure of remote material determines the line of tearing across a package having areas of remote material on weld and from the first side edge and a second edge side for tearing along the line of tearing and across the weld in response to the separating force applied to the first or second side edge, a complete separation of one of the sealed ends from the package. The areas of the remote material have a depth less than the thickness of the outer material layer.

EFFECT: invention provides maintaining of sufficient tensile strength to withstand conditions of the process of vertical formation, filling and sealing substantially without destruction.

9 cl, 18 dwg