B - Operations – Transporting – 31 – B
Patent
B - Operations, Transporting
31
B
B31B 19/36 (2006.01) B31B 19/90 (2006.01) B65D 30/20 (2006.01)
Patent
CA 2250365
The invention concerns a method for making packaging bags with lateral gussets characterised in that it comprises the following steps consisting in forming a cut (150, 160) respectively in each of the two zones forming the lateral gussets of a packaging bag sheet (100) so that the bag has only two superposed layers at the mouth of said gussets, at least over part of its width, and sealing (184, 186) the coupled edges of the sheet on the periphery of the cuts (150, 160) for closing the bag. The invention also concerns a device for implementing this method and the resulting bags.
La présente invention concerne un procédé de fabrication de sachets d'emballage à soufflets latéraux caractérsisé par le fait qu'il comprend les étapes consistant à former une encoche (150, 160) respectivement dans chacune des deux zones formant soufflets latéraux d'une feuille (100) de sachet d'emballage de sorte que le sachet présente seulement deux épaisseurs superposées au niveau de l'embouchure desdits soufflets, au moins sur une partie de sa largeur, et souder (184, 186) les bords accolés de la feuille sur la périphérie des encoches (150, 160) pour fermer le sachet. L'invention concerne également un dispositif pour la mise en oeuvre de ce procédé et les sachets ainsi obtenus.
Flexico-France
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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