Water Line Sa

Tiziano Colla

The invention discloses a method of producing a packaging bag from a multilayered sheet material which can be welded on one side, wherein the packaging bag comprises a front wall, a rear wall, a right-hand side gusset, a left-hand side gusset, a bottom and a head portion, which is located opposite the bottom and has an opening which can be closed by a closure element. The two side gussets, the front wall and the rear wall are of essentially the same length and are welded to one another and therefore, other than in the head portion, the side gussets are connected to the front wall and the rear wall over their entire length. The weldable surface is directed towards the interior of the packaging bag.

Packaging bag

A device for manufacturing packing bags from two packaging films, comprising two transport rollers, each of which pulls a film from a respective feed roll. The two films have marks printed on them at regular intervals. The transport rollers are pressed against corresponding idler rollers which between them preferably form a feed gap for the films. Downstream of the two transport rollers, there is at least one first buffer taking up slack in the assemblage of the two films or accommodating the lengths of the two films to match each other. The device can be used to synchronize two films that are printed with a regular pattern so that the patterns match.

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Dino, Switzerland

Tiziano Colla