Abstract: Provided is a packaging bag which can prevent the entry of water between a handle and a body, as well as can maintain proper degrees of easy-opening properties and bag-break strength. A packaging bag includes an easy-peel seal. The seal includes first regions in which multiple belt-shaped seals are spaced from each other in the width direction and second regions in which a single belt-shaped seal is disposed. The first regions and second regions are alternately disposed adjacent to each other in the length direction of the belt-shaped seals. The single belt-shaped seal in each second region has a wide width so that the multiple belt-shaped seals in the adjacent first regions can be connected to the single belt-shaped seal.

Abstract: Provided is a packaging bag which can prevent the entry of water between a handle and a body, as well as can maintain proper degrees of easy-opening properties and bag-break strength. A packaging bag includes an easy-peel seal. The seal includes first regions in which multiple belt-shaped seals are spaced from each other in the width direction and second regions in which a single belt-shaped seal is disposed. The first regions and second regions are alternately disposed adjacent to each other in the length direction of the belt-shaped seals. The single belt-shaped seal in each second region has a wide width so that the multiple belt-shaped seals in the adjacent first regions can be connected to the single belt-shaped seal.

Abstract: A pillow packaging bag, a pillow type packaging body, a heat seal bar for pillow packaging machine, and a pillow packaging machine. The pillow packaging bag enabling the suppression of the occurrence of pin holes in a handling step and a transportation course after packaging comprises two lateral seal parts positioned roughly parallel with each other and a contents filling part held by the two lateral seal parts. Damping portions connected to the contents filling portion are formed near both side end parts of the lateral seal part from the border line thereof with the contents filling part near the center part of the lateral seal part toward the lateral seal part.

Abstract: A vertical filling and packing machine comprises film feed roller (6) for feeding tubular film (20) in a vertical downward direction, a folding device for folding opposing sides of tubular film (20) carried by film feed roller (6) inwardly of tubular film (20), a pair of squeeze rollers (7) for forming an empty portion in the tubular film by rotating while sandwiching the tubular film filled with contents and feeding the tubular film downwardly, and sealing device (8) for heat sealing the tubular film. The folding device includes folding guide (2) which has clearances formed at portions corresponding to the opposing sides of tubular film (20) and supports the outside of tubular film (20), and a pair of folding plates (5) capable of advancing/retracting into/from folding guide (2) through the clearances formed in folding guide (2).

Abstract: A pillow packaging bag, a pillow type packaging body, a heat seal bar for pillow packaging machine, and a pillow packaging machine. The pillow packaging bag enabling the suppression of the occurrence of pin holes in a handling step and a transportation course after packaging comprises two lateral seal parts positioned roughly parallel with each other and a contents filling part held by the two lateral seal parts. Damping portions connected to the contents filling portion are formed near both side end parts of the lateral seal part from the border line thereof with the contents filling part near the center part of the lateral seal part toward the lateral seal part.

Abstract: A pillow packaging bag, a pillow type packaging body, a heat seal bar for pillow packaging machine, and a pillow packaging machine. The pillow packaging bag enabling the suppression of the occurrence of pin holes in a handling step and a transportation course after packaging comprises two lateral seal parts positioned roughly parallel with each other and a contents filling part held by the two lateral seal parts. Damping portions connected to the contents filling portion are formed near both side end parts of the lateral seal part from the border line thereof with the contents filling part near the center part of the lateral seal part toward the lateral seal part.

Abstract: A tubular film is flattened to form a continuous two-ply film in which the two side edges are continuously connected in the longitudinal direction. This two-ply film is curved into a tubular form, the two side edges are overlapped, and a vertical seal portion is formed in the overlapping portion to form a tube body, and the tube body is filled with a product. The tube body that has been filled with product is horizontally sealed, and the horizontal seal portion that has been thus formed is cut to produce a two-ply bag package.

Abstract: A vertical-type filling and packaging machine for filling and packaging a filling material in a tubular film of resin has a pair of squeezing rollers rotatably disposed one on each side of the tubular film filled with a filling material. The squeezing rollers press against the tubular film to clamp and feed the tubular film downwardly and create an unfilled region in the tubular film. A heat sealing mechanism which is disposed downwardly of the squeezing rollers for heat-sealing and severing the unfilled region has a heater bar for heat-sealing the unfilled region and a cooling bar for cooling the portion which has been heat-sealed by the heater bar. The heater bar and the cooling bar are successively pressable against a portion of the unfilled region while the tubular film is being held at rest. A cutting device, which may be an independent cutting blade or a triangular protrusion on the heater bar, severs the heat-sealed portion, thereby producing a sacked product.

Abstract: A filling connector of the present invention includes a tubular first connection element having a hollow portion and a tubular second connection element supported for sliding movement on an inner circumferential face of the first connection element and having teeth formed at one end thereof. The first and second connection elements are provided with a holding mechanism for holding the second connection element in a first position in which the second connection element is accommodated within the first connection element and a second position in which one end of the second connection element projects from the first connection element.

Abstract: The present invention provides a vertical type forming, filling and closing machine for filling fluid substance discharged from an injection nozzle to a predetermined height into a bag and packaging the same, which comprises:upper surface height detecting means for detecting the height of the upper surface of fluid substance filled in the bag;a cylinder connected to the injection nozzle for moving the injection nozzle upwardly and downwardly; anda controlling apparatus for controlling the cylinder in response to the result of detection of the upper surface height detecting means to move the injection nozzle upwardly or downwardly;the controlling apparatus controlling the cylinder so that the discharging opening of the injection nozzle is always buried, during filling, to a predetermined level from the upper surface of the fluid substance filled in the bag.

Abstract: This invention relates to a transverse sealing mechanism for use in producing bag-packed products by packing products in tubular film. The transverse sealing mechanism comprises compression-and-heat sealing means and compression-cooling and compression-cutting means disposed immediately below said sealing means, each of these means having a mechanism which can increase its compressive force infinitely. The packed bag transverse sealing mechanism provides for storing and perfect seals.

Abstract: The invention is a mechanism for regulating the speed and stroke of a transverse sealing means for a vertical packing machine using tubular film. The mechanism comprises a cranking disc, and elongated transverse rod and a vertical rod, these members being connected adjustably to each other to regulate the movement of the transverse sealing means.

Abstract: A low-to-high pressure, fusion-welding, press mechanism for vertical packing machines which seals packed products using packing film. The press mechanism comprises a cylinder, a cylinder rod, a circular disc, a plurality of pairs of levers and a pair of sealing substrates having a pair of sealing blades, these members being interconnected to each other to fusion-weld packed products with said pair of sealing blades under desired sealing pressure.

Abstract: The invention provides an apparatus for transversely stretching a film tube at a portion to be transversely sealed and preventing creases from occurring in the transversely sealed portion of the film tube when a product fed in the film tube is separated by a squeeze roll means into a specified amount for one pack and thereafter the film tube is transversely sealed. Butterfly arms which pivotally spread apart in a fan-like manner are used for the stretching means.

Abstract: A manufacturing method for a cushioning material of air-filled film, wherein a plastic film sheet formed into a cylindrical shape is transversely fusion-bonded so that small air-filled cells are fabricated continuously. Manufacturing equipment is provided with a means for forming a plastic film into a cylindrical shape, a longitudinal sealing means, a roller means, and a transverse sealing means.