Packages made from flexible material, wherein the packages include one or more self-folds formed by applying activation energy to the flexible material are presented. The packages include a polymeric film, wherein the polymeric film is formed from one type of polymer, and wherein the flexible material defines an enclosed product volume. The packages include a first panel formed from the flexible material and a second panel formed from the flexible material. The packages include a self-fold that has an overall thickness that is about 5% to about 30% greater than a thickness of the flexible material outside of the self-fold. The self-fold has a differential thermal-mechanical set than the flexible material outside of the self-fold, and forms an angle of about 100 degrees to about 170 degrees between the first panel and the second panel.

A machine for the production of a stand up pouch from a web includes a film feed which moves the web at continuously at a constant speed through a punching station, a folding station, and a welding station. The welding station includes a pair of seal bars which are driven by a server motor at a speed equal to a speed of the web during the welding. The punch station includes at least one electromagnetic punch.

A machine for the production of a stand up pouch from a web includes a film feed which moves the web at continuously at a constant speed through a punching station, a folding station, and a welding station. The welding station includes a pair of seal bars which are driven by a server motor at a speed equal to a speed of the web during the welding. The punch station includes at least one electromagnetic punch.

A plastic bag has a safety even when a flap is not adhered on an outer surface of a side gusset. One of the opposite end portions of the side gusset is obliquely folded in half along a fold line and interposed between the two layers of the side gusset, so that the flap is formed by the end portion between the two layers of the side gusset. The flap includes a folded edge formed by a folded inner edge of the side gusset, and an open edge formed by one of the opposite end edges of the side gusset. The flap further includes a joining edge extending straight or curved and joining the folded edge and the open edge on opposite sides of the fold line.

A plastic bag has a safety even when a flap is not adhered on an outer surface of a side gusset. One of the opposite end portions of the side gusset is obliquely folded in half along a fold line and interposed between the two layers of the side gusset, so that the flap is formed by the end portion between the two layers of the side gusset. The flap includes a folded edge formed by a folded inner edge of the side gusset, and an open edge formed by one of the opposite end edges of the side gusset. The flap further includes a joining edge extending straight or curved and joining the folded edge and the open edge on opposite sides of the fold line.

The present invention relates to a method for making airtight packages (100) made of flexible material that are configured to seal an environment inside the package with respect to an external environment, said packages (100) comprising a front panel (1), a back panel (2) and two side gussets (3, 4) provided at opposite ends of the front panel (1) and of the back panel (2) so as to connect the front panel (1) to the back panel (2). The method comprises a first step of folding a sheet (60) made of flexible material along two first fold lines (L1) which are mutually parallel so as to form a tubular element (61). Moreover, the method comprises a second step that consists in folding an end portion of the tubular element (61) along two second fold lines (L2) that are oblique with respect to the direction of the first fold lines (L1) so as to form an end portion of the tubular element (61) that has two triangular portions (6, 7) having two mutually parallel sides (8, 9) and having a distance between each other equal to twice a first predetermined distance (D1). In addition, the present invention also comprises a machine (200) which allows using such method and a package that can be made by means of such method and such machine.

Apparatus for manufacturing an open-mouth bag of at least one layer of a flexible bag material, and method of manufacturing a bag by such apparatus. The apparatus includes a shaping device with a shaping box in the contour of the bag shape to be formed, with a top end and a bottom end, a conveying device for transporting the bag material along the shaping box, a closing device for joining the bag material along the shaping box to form a tube, and a closing station for generating a bag bottom, which is disposed beneath the bottom end of the shaping box. A partial vacuum device is configured to generate intermittently, a partial vacuum. When manufacturing a bag, the bag material is draped around the shaping box in the contour of the bag shape to be formed as continuous material and is joined to form a tube by the closing device.

A square-bottomed packaging bag (1) of the present invention is a square-bottomed packaging bag formed by bending a one-piece soft packaging material and includes a quadrangular bottom surface (10), a front surface (20) and a rear surface (30) standing from two opposite sides of the bottom surface, and a left side surface (40) and a right side surface (50) connecting the front surface and the rear surface, in which each of the left side surface and the right side surface includes a first region (41, 51) positioned on the front surface side, a second region (42, 52) positioned on the rear surface side, and a side-surface-joining portion (43, 53) joining the first region and the second region.

Embodiments of the present invention disclose packaging receptacles, modular apparatuses for manufacturing such packaging receptacles, and a method thereof. A modular apparatus for manufacturing packaging receptacles includes a paper feeder module, an embossing module, and an adhesive coating module. The paper feeder module includes a plurality of paper feeder rollers configured to feed one or more first layers of paper to the embossing module, and a second layer of paper to the adhesive coating module. The embossing module includes a first embossing roller and a second embossing roller configured to emboss a plurality of impressions onto the one or more first layers, and feed the embossed one or more first layers to the adhesive coating module. Also, the adhesive coating module is configured to apply an adhesive to an outermost surface of the embossed one or more first layers and an inner surface of the second layer.

Embodiments of the present invention disclose packaging receptacles, modular apparatuses for manufacturing such packaging receptacles, and a method thereof. A modular apparatus for manufacturing packaging receptacles includes a paper feeder module, an embossing module, and an adhesive coating module. The paper feeder module includes a plurality of paper feeder rollers configured to feed one or more first layers of paper to the embossing module, and a second layer of paper to the adhesive coating module. The embossing module includes a first embossing roller and a second embossing roller configured to emboss a plurality of impressions onto the one or more first layers, and feed the embossed one or more first layers to the adhesive coating module. Also, the adhesive coating module is configured to apply an adhesive to an outermost surface of the embossed one or more first layers and an inner surface of the second layer.