ES249471A3 - Procedure for manufacturing a bag (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Process for manufacturing a bag characterized in that a contour is cut out on a sheet of appropriate material having a rectilinear side edges located with a separation such that by folding and folding around two lines parallel to said edges, a middle band is determined to form one of the faces of the bag, for example, the one with the flap and two side strips intended to be formed by folding and overlapping the opposite face, on the other hand a lower edge formed by two lateral rectilinear portions perpendicular to the side edges and extending respectively in their corresponding extensions in front to each lateral band and by a rectilinear part half aligned with respect to the previous ones so that the aforementioned fold gives rise to a bottom flap and finally an upper edge that has three projections located respectively facing the three corresponding bands and dispute these in such a way that upon completion of the aforementioned foldback the closing flap of converging end edges is formed at the end of one of the faces while at the end of the opposite face a symmetrical edge projection is formed which is capable of at least folding once around a fold line at least perpendicular to the rectilinear edge of the contour and contacting the corresponding face immediately after gluing the inner face of one of the side strips at a width at least equal to the overlap width is folded and applied on the other semi-car previously folded back after the gluing of the bottom flap and the outer face of the upper projection disposed at the end of the opposite face on at least part of its extension the bottom flap is folded and it glued against the corresponding face of the bag to constitute the bottom of the latter, and then the salient and opposite the closing flap at least once around its line or lines of folding finally against the corresponding face of the bag and being in the center of the strip thus constituted a housing intended to receive the retracted end of the flap of closing. (Machine-translation by Google Translate, not legally binding)