A packing machine (M) and method for wrapping a sheet (P), in particular of shock-absorbing paper, around articles (A) so as to form bags (B) with means (4,5) for folding the said sheet around the articles and means (6) for gluing the said sheet to itself so as to create a sheet tube (TB) around the articles (A) and compression and cutting means (7), for sealing and separating portions of the tube by sealing and separating the ends upstream and downstream of the article, acting in cooperation with second glue application means (10) on the sheet at the cutting areas, located upstream of the sheet folding and gluing means.

A packing machine (M) and method for wrapping a sheet (P), in particular of shock-absorbing paper, around articles (A) so as to form bags (B) with means (4,5) for folding the said sheet around the articles and means (6) for gluing the said sheet to itself so as to create a sheet tube (TB) around the articles (A) and compression and cutting means (7), for sealing and separating portions of the tube by sealing and separating the ends upstream and downstream of the article, acting in cooperation with second glue application means (10) on the sheet at the cutting areas, located upstream of the sheet folding and gluing means.

Aspects of the present disclosure relate to packaging apparatuses and methods adapted to wrap absorbent paper product in a continuous sheet of film formed into tube shape with an asymmetric opening. A former may include a plurality of forming members, wherein each forming member includes an outer surface connected with an inner surface along an edge. In operation, a continuous sheet of film advances around the edges of the forming members and forms an opening. In addition, opposing longitudinal edges of the continuous sheet are guided into an overlapping arrangement that forms the plastic film into a tube shape that extends downstream from the opening in the machine direction. The opening is symmetrical about a first axis and is asymmetrical about a second axis. Absorbent paper product to be packaged advances in the machine direction through the opening and into the tube.

Aspects of the present disclosure relate to packaging apparatuses and methods adapted to wrap absorbent paper product in a continuous sheet of film formed into tube shape with an asymmetric opening. A former may include a plurality of forming members, wherein each forming member includes an outer surface connected with an inner surface along an edge. In operation, a continuous sheet of film advances around the edges of the forming members and forms an opening. In addition, opposing longitudinal edges of the continuous sheet are guided into an overlapping arrangement that forms the plastic film into a tube shape that extends downstream from the opening in the machine direction. The opening is symmetrical about a first axis and is asymmetrical about a second axis. Absorbent paper product to be packaged advances in the machine direction through the opening and into the tube.

In a method for forming a lateral sealed portion, a liquid packing material can be filled without biting bubbles, granulates and so on included in the liquid packing material into the lateral sealed portion. In a method for forming a lateral sealed portion with a pair of lateral sealing rolls after a packaging film fed and run is folded at its central portion and a vertical sealing is performed at their side edge parts to shape into a cylindrical form and a liquid packing material is filled into an inside of the cylindrically formed packaging film, at least a folded side part of the cylindrically formed packaging film is pushed with a pushing means arranged between heat sealing bars located at equal intervals in a circumferential direction of the lateral sealing roll and the lateral sealed portion is formed at a pushed position with the pair of lateral sealing bars.

In a method for forming a lateral sealed portion, a liquid packing material can be filled without biting bubbles, granulates and so on included in the liquid packing material into the lateral sealed portion. In a method for forming a lateral sealed portion with a pair of lateral sealing rolls after a packaging film fed and run is folded at its central portion and a vertical sealing is performed at their side edge parts to shape into a cylindrical form and a liquid packing material is filled into an inside of the cylindrically formed packaging film, at least a folded side part of the cylindrically formed packaging film is pushed with a pushing means arranged between heat sealing bars located at equal intervals in a circumferential direction of the lateral sealing roll and the lateral sealed portion is formed at a pushed position with the pair of lateral sealing bars.

A tissue paper package not prone to losing shape. Film-packaged tissue paper comprising a pop-up type substantially cuboid bundle of tissue paper packaged with a flexible resin packaging film, and characterized in that air vents for providing communication between the inside and the outside of the package are formed at positions on the packaging film facing short-side surfaces of the bundle of tissue paper where no folded edges are arranged.

A tissue paper package not prone to losing shape. Film-packaged tissue paper comprising a pop-up type substantially cuboid bundle of tissue paper packaged with a flexible resin packaging film, and characterized in that air vents for providing communication between the inside and the outside of the package are formed at positions on the packaging film facing short-side surfaces of the bundle of tissue paper where no folded edges are arranged.

A bag-making and packaging machine includes a film supply unit that supplies film to a bag-making and packaging unit. The film supply unit has a film roll holding unit that rotatably holds a first film roll, a film temporary placement member on which a vicinity of a leading end portion of a first film wound into the first film roll is manually temporarily placed when attaching the first film roll to the film roll holding unit, a leading end portion detection sensor configured to detect that the leading end portion of the first film is positioned in a prescribed position, and a controller configured to control a rotating mechanism to convey the first film along a predetermined conveyance path until the leading end portion detection sensor detects that the leading end portion of the first film is positioned in the prescribed position.

A sealing machine having a movable carriage assembly which utilizes a counterbalance and two servo motors is disclosed. The counterbalance allows high throughput operation without excessive mechanical vibration. The use of two servo motors allows independent control of the horizontal movement of the movable carriage assembly and the vertical movement of the jaws. The use of two servo motors also allows adaptation to articles or packages of various dimensions. In some embodiments, an optical sensor is used to detect the position of the package to be sealed, and the movement of the movable carriage assembly and the jaw is altered based on the detected position.