An accordion-sides square-bottom bag and manufacturing method thereof, comprising a paper tube (10) made by a sheet enclosing the sides; accordion sides are folded on two sides of the paper tube (10); the paper tube is provided with a first indentation line (21) and a second indentation line (22), the distance from the second indentation line (22) to the base being greater than the distance between the first indentation line and the second indentation line, but not exceeding twice the distance; two ends of the second indentation line (22) are symmetrically provided with a first crease line (31) and a second crease line (32), the distances between the respective ends of the first and second crease lines and the two edges of the paper tube (10) exceeding the folded depth of the accordion sides; and a first cutting line (41) and a second cutting line (42) are provided from the ends of the first and second crease lines to the base of the paper tube (10). The accordion-sides square-bottom bag enlarges the area of the glued surface of the bottom of the bag, such that the material on the bottom is uniformly distributed, and the bottom is adhered firmly, thus reducing the maximum thickness of the bottom, and reducing the footprint of packaged material during transportation.

A method (100) for making a flat bottom bag (800) with a valve (28) is provided. The method (100) includes overlapping and sealing the two longitudinal edges (11a and 11b) of a web (10) to form a continuous tube (12). The method includes cutting-off the continuous tube into tube pieces (14) in accordance with desired bag length such that each tube piece (14) has at least a first open end (18) and a second open end (22). The method (100) includes forming a first pair of flaps (F1, F2) and a second pair of flaps (F3, F4) on the first open end (18) and the second open end (22) respectively. The method (100) includes providing a valve (28) on the second pair of flaps (F3, F4) on the second open end (22). The method (100) includes folding and flattening both the pairs of flaps (F1, F2 and F3, F4) so that the edges of the flaps meet at the centre. The method (100) includes sealing a pre-cut cover patch (30) onto the folded and flattened pairs of flaps (F1, F2 and F3, F4) to close the open ends (18, 22).

A method of making a one piece, leak proof container for holding and transporting hot melt asphalt. The container is made from a sheet of heavy duty cardboard which is coated on one side, folded and glued to create a leak proof container. The sheet has a series of pre-scored fold lines to allow the sheet to be folded into a container with a leak proof bottom. A series of reinforcing sheets are added to the bottom of the container to provide reinforcement, and to create the leak proof base.

The present invention relates to a detergent product including a flexible box bag, detergent powder and a scoop, wherein the flexible box bag includes six rectangular panels: top panel, bottom panel, front panel, back panel and two side panels, wherein the six rectangular panels are joined together so as to form an inner cuboidal volume inside the flexible box bag, wherein each of the top panel and bottom panel includes a front horizontal edge, a back edge and two side edges, wherein each of the front panel, back panel and two side panels include a top edge, a bottom edge, and two side edges, wherein the length of the two side edges of back panel are longer than the length of the two side edges of the front panel, wherein the front edge of the top panel joins the top edge of the front panel, wherein the back edge of the top panel joins the top edge of the back panel, wherein the front edge of the bottom panel joins the bottom edge of the front panel, wherein the back edge of the bottom panel joins the bottom edge of the back panel, wherein the side edges of the top panel join the top edges of the side panels and part of the side edges of the back panel, wherein the top panel comprises a two dimensional opening means that is capable of forming a two dimensional planar opening, wherein the detergent powder and scoop are both contained within the inner cuboidal volume.

An accordion-sides square-bottom bag and manufacturing method thereof, comprising a paper tube (10) made by a sheet enclosing the sides; accordion sides are folded on two sides of the paper tube (10); the paper tube is provided with a first indentation line (21) and a second indentation line (22), the distance from the second indentation line (22) to the base being greater than the distance between the first indentation line and the second indentation line, but not exceeding twice the distance; two ends of the second indentation line (22) are symmetrically provided with a first crease line (31) and a second crease line (32), the distances between the respective ends of the first and second crease lines and the two edges of the paper tube (10) exceeding the folded depth of the accordion sides; and a first cutting line (41) and a second cutting line (42) are provided from the ends of the first and second crease lines to the base of the paper tube (10). The accordion-sides square-bottom bag enlarges the area of the glued surface of the bottom of the bag, such that the material on the bottom is uniformly distributed, and the bottom is adhered firmly, thus reducing the maximum thickness of the bottom, and reducing the footprint of packaged material during transportation.

A bag construction is disclosed of the type having handles and a patch for reinforcing the attachment between the handles and the walls of the bag. The exemplary reinforcement patch includes a fold-over to define a folded top edge of the patch. During construction, a patch having the folded top end is placed in registry with the two ends of the handle that are attached to the wall of the paper bag such that the top edge is generally perpendicular to the ends of the handle. The patch is then affixed over the handle and exterior surface of the bag using glue or other such permanent adhesives. According to a salient aspect, the reinforcing patches are configured to resist tearing, particularly when shear forces are applied that normally act to detach the handles away from the side of the bag.

The present invention provides a manufacturing system of a packaging bag with excellent manufacturing efficiency. According to the present invention, provided is a manufacturing system of a packaging bag, including: a film supply device; a conveying device; a bottom insertion device; a bottom sealing device; a transverse sealing device; and a cutoff device, wherein the film supply device supplies a front surface long film and a back surface long film facing each other, the conveying device is configured to convey the front surface long film and the back surface long film, the bottom insertion device, the bottom sealing device, the transverse sealing device, and the cutoff device are arranged in this order along a conveyance direction, the bottom insertion device is configured to start inserting a bottom long film between the front surface long film and the back surface long film at an insertion start position and to complete insertion of the bottom long film at an insertion completion position downstream from the insertion start position, the bottom sealing device is configured to weld the bottom long film to the front surface long film and to the back surface long film, the transverse sealing device forms a transverse seal portion extending in a direction perpendicular to the conveyance direction so as to weld the front surface long film and the back surface long film to each other, and the cutoff device cuts off the front surface long film, the back surface long film, and the bottom long film along the transverse seal portion.

A method for producing a tool including a sheet, the method including the steps of: providing a first cellulose sheet; attaching first and second plastic layers each to one side of the first cellulose sheet; upon the attaching, placing a first side of a plastic object on the first plastic layer; pressing a metal object on a portion of a second side of the plastic object; vibrating the metal object parallel to the first plastic layer together with the pressing thereon; and ceasing the vibrating, thereby ceasing the heating.

The present disclosure includes paper bags and methods for forming paper bags. Some of the bags may include a body, a first attachment portion configured to engage an arm of a bag holder, and a second attachment portion configured to engage another arm of the bag holder. In some aspects, the body defines an opening and includes opposing first and second sides, a first section disposed between the first side and the second side, and a second section disposed between the first and second sides, the second section moveable relative to the first section to define a cavity that is in communication with the opening. The first attachment portion may be closer to the first side of the body than the second side and the second attachment portion may be closer to the second side of the body than the first side.