JP2006069647A - Package manufacturing apparatus, package manufacturing method, and package - Google Patents

Abstract

To provide a package manufacturing apparatus for manufacturing a package that enhances sealing performance at a converging part, increases pressure resistance, has a soft end, and does not damage a film of another package.
An ironing device that flatly forms a non-existing portion of the content at predetermined intervals in the longitudinal direction of the cylindrical film with respect to the cylindrical film filled with the content C, and the non-existing portion as a flat surface A converging device for converging in a direction crossing the tape, a tape supply device for forming the tape in a concave shape, and stacking the tape on a non-existing portion that is converged from a direction different from the longitudinal direction of the cylindrical film, and a converging absence of the tape stacked A first sealing device for making a first seal with the tape in a transverse direction, a second sealing device for making a second seal to close the concave open portion of the tape, and a tape, The packaging body manufacturing apparatus 1 provided with the 3rd seal | sticker apparatus which carries out a 3rd seal | sticker in the direction which cross | intersects a 1st seal | sticker on the opposite side which pinched | stacked the absent part concentrated with respect to the seal | sticker.
[Selection] Figure 1

Description

  The present invention relates to a packaging body manufacturing apparatus, a packaging body manufacturing method, and a packaging body, and more particularly to a packaging body in which an end portion is reinforced with a reinforcing tape (hereinafter simply referred to as “tape”). The present invention relates to a manufacturing apparatus, a manufacturing method, and a packaging body for a packaging body in which the pressure-bonding strength of the portion is reinforced and the welded (also simply referred to as “seal”) portion is soft and does not damage the film of the other packaging body. .

As a sealing means when sealing cylindrical films filled with contents such as sausages and stick cheeses to obtain individual packages, a method of connecting the ends of the cylindrical films with metal wire clips is known. It has been. However, in the method of connecting with a metal wire clip, the wire clip is detected in the metal detection in the product inspection, and there is inconvenience that it is impossible to detect the mixing of the metal foreign matter into the contents. Methods of focusing and sealing have come to be used. In such a sealing method, the mechanical strength is reduced such that pinholes are likely to occur at or near the sealed portion, and therefore the following countermeasure has been proposed (see Patent Document 1).
(1) A tape that compensates for the thickness of the cylindrical film to be sealed is disposed at the end of the cylindrical film after being focused, and then sealed together with the cylindrical film.
(2) A tape that compensates for the thickness of the cylindrical film at the sealed portion is arranged in the absence of the contents at the end of the cylindrical film that is not yet focused, and the cylindrical film end and the tape are focused together. And seal it.

Japanese Patent No. 2516885

  However, in a package manufactured by a conventional means for sealing the end of a cylindrical film, the contents expand in volume due to heat treatment such as retort or boil, and the pressure resistance of the sealed part is insufficient due to an increase in internal pressure. However, the welded portion was broken and the sealing was insufficient, and there was a risk that the contents would rot due to the inflow of outside air, or the surroundings of the sealed portion of the package could be soiled due to leaching of the moisture of the contents. In addition, if the package is torn during the retort process, it takes time to remove the dirt, which greatly reduces the production efficiency. Furthermore, simply attaching a reinforcing tape to the converging part and welding the converging part and the reinforcing tape together may leave a communication hole in the center of the converging part, possibly resulting in poor sealing of the package, eliminating the communication hole. Therefore, if welding is performed strongly, the pressure strength of the welded portion may be reduced.

  For this purpose, it is desirable to provide a package that enhances the sealing performance at the sealed end, that is, the converging portion, and increases the strength so that the end is not easily damaged. If the end portion is formed to be harder in order to improve the quality, there is a concern that the end portion of one package may damage the film of another package when transporting a plurality of packages. Therefore, the present invention provides a packaging body manufacturing apparatus for producing a packaging body that enhances the sealing performance at the converging portion, enhances the pressure resistance, and is soft at the end and does not damage the film of the other packaging body, It aims at providing a package manufacturing method and a package.

  In order to achieve the above object, the packaging body manufacturing apparatus according to the invention described in claim 1 has a cylindrical shape with respect to the cylindrical film 15a filled with the contents C as shown in FIGS. A squeezing device 40 that flatly forms the absent portions 15b of the contents C at predetermined intervals in the longitudinal direction of the film 15a; a converging device 70 that focuses the absent portions 15b in a direction crossing the flat surface; and a tape 120 A tape supply device 90 which is formed in a concave shape and superimposes the tape 120 on the convergent absent portion 15b; and a first seal 121 is formed along with the tape 120 in the transverse direction on the converged absent portion 15b on which the tape 120 is superimposed. A first sealing device 55, 65; a second sealing device 56, 66 that provides a second seal 122 to close the concave open portion of the tape 120; Sandwiched focused absent portion 15b relative to the opposite side, and a third sealing device 57, 67 for the third seal 123 in a direction crossing the first seal 121.

  If comprised in this way, it will become a package body manufacturing apparatus which manufactures the package body by which the edge part of the package body was sealed with the tape, and the edge part was enclosed by the tape with which 3 sides were sealed. Since the end of the package is surrounded by the tape, even if it receives pressure on the contents due to volume expansion due to movement of the contents in the package or heat treatment, deformation of the end is suppressed with the tape. It becomes a package with high property and high pressure strength. Further, since the three sides of the tape are sealed to form a thin film, the outer edge of the tape becomes soft, and a packaging body manufacturing apparatus for manufacturing a packaging body that does not damage the film of another packaging body at the end portion is obtained. .

  Moreover, the packaging body manufacturing apparatus according to the invention described in claim 2 includes a tape supply device 90 in the packaging body manufacturing apparatus 1 (see FIG. 1) according to claim 1, as shown in FIG. (See FIG. 1) further forms a concave shape 127 thinner than the concave shape 126 on the bottom of the concave shape 126 on the tape 120 formed in the concave shape 126.

  When configured in this way, a narrower concave shape is formed at the bottom of the concave tape superimposed on the absent portion, so that there are overlapping portions of the tape on both sides of the absent portion. It becomes easy to seal 3 sides using.

  Moreover, the packaging body manufacturing apparatus according to the invention described in claim 3 is, for example, as shown in FIG. 2A, in the packaging body manufacturing apparatus 1 (see FIG. 1) according to claim 1 or 2, The tape supply device 190 has two stages of holders 191a and 191b for holding a concavely formed tape in the longitudinal direction of the tubular film 15a (see FIG. 1).

  If comprised in this way, since a tape is hold | maintained with a two-stage holder, a tape is hold | maintained in an appropriate position and the shape of the bag-like tape which wraps the edge part of a package will become a preferable shape stably.

  Moreover, the packaging body manufacturing apparatus according to the invention described in claim 4 is, for example, as shown in FIG. 5 (a), the packaging body manufacturing apparatus 1 according to any one of claims 1 to 3 (FIG. 1), the first sealing devices 155 and 165, the second sealing devices 156 and 166, and the third sealing devices 157 and 167 melt the object to be welded by ultrasonic vibration energy and pressure-bond the objects to be welded. The ultrasonic welding apparatus 200 is configured as one ultrasonic welding apparatus 200; the ultrasonic welding apparatus 200 includes a horn 150 that presses the object to be welded.

  If comprised in this way, since the 1st-3rd sealing apparatus is one ultrasonic welding apparatus, it can seal, pressing three sides at once, and it is efficient and can raise production speed. it can.

  In addition, the packaging body manufacturing apparatus according to the invention described in claim 5 is the packaging body manufacturing apparatus 1 according to any one of claims 1 to 4, for example, as shown in FIGS. An original fabric supply device 20 for supplying the belt-like film F; a vertical sealing device 13 for forming the tubular film F1 by overlapping and sealing the side edges of the belt-like film F; and filling the tubular film F1 with the contents C The apparatus further includes a filling device 30; and a cutting device 80 for cutting the tubular film at the portion where the first seal 121 is provided.

  If comprised in this way, since it is equipped with from a raw fabric supply apparatus to a cutting device, a strip-like film is supplied, a cylindrical film is formed, a content is filled, an absence part of the contents is formed, and the absence part is converged Then, a packaging body manufacturing apparatus for consistently manufacturing a packaging body is provided, in which the tape is supplied and sealed, and cut at the sealed portion.

  In order to achieve the above object, a packaging body manufacturing method according to a sixth aspect of the present invention includes a packaging body manufacturing apparatus 1 according to any one of the first to fifth aspects as shown in FIG. Then, the band-like film F and the contents C to be filled are supplied to manufacture a package.

  If comprised in this way, it will become a package body manufacturing method which manufactures the package body by which the edge part was sealed with the sealing device with the tape, and the edge part was enclosed by the tape with which 3 sides were sealed. Since the end of the package is surrounded by the tape, even if it receives pressure on the contents due to volume expansion due to movement of the contents in the package or heat treatment, deformation of the end is suppressed with the tape. It becomes a package with high property and high pressure strength. Furthermore, since the three sides of the tape are sealed to form a thin film, the outer edge of the tape becomes soft, and a package manufacturing method for manufacturing a package without damaging the film of another package at the end is obtained. .

  Moreover, in order to achieve the said objective, the packaging body manufacturing method which concerns on invention of Claim 7 forms a cylindrical film by overlapping and sealing the edge part of a strip | belt-shaped film, for example, as shown in FIG. A vertical sealing step (St1, St2); a filling step (St3) for filling the tubular film with the contents; and a predetermined interval in the longitudinal direction of the tubular film with respect to the tubular film filled with the contents A squeezing step (St4) for forming a non-existing portion of the contents flat; a converging step (St5) for converging the non-existing portion in a direction crossing the flat surface; and a tape that overlaps the tape so as to surround the converging absent portion A feeding step (St6); a first sealing step (St7) for performing a first seal together with the tape in the transverse direction in the absence portion where the tape is overlapped; and a tape in the direction intersecting the first seal 2nd seal A sealing step (St8); and a third sealing step (St9) in which a third sealing is performed in a direction intersecting with the first seal on the opposite side of the tape with the absence portion concentrated with respect to the second seal. And; a cutting step (St10) for cutting the tubular film at the portion sealed in the first sealing step (St7).

  If comprised in this way, it will become a package body manufacturing method which manufactures the package body by which the edge part was sealed with the tape and the edge part was enclosed by the tape with which 3 sides were sealed. Since the end of the package is surrounded by the tape, even if it receives pressure on the contents due to volume expansion due to movement of the contents in the package or heat treatment, deformation of the end is suppressed with the tape. It becomes a package with high property and high pressure strength. Further, since the three sides of the tape are formed thin by sealing with a sealing device, the outer edge of the tape is softened, and the package body manufactures a package body that does not damage the film of the other package body at the end. Become a method. In addition, it forms a tubular film, fills the contents, forms the absent part of the contents, converges at the absent part, feeds and seals the tape, and cuts at the sealed part. It becomes the package manufacturing method to manufacture.

  Furthermore, in order to achieve the above-mentioned object, the package according to the invention described in claim 8 is filled with the contents C, the ends thereof are converged, for example, as shown in FIG. A cylindrical film 115 formed with a seal 111 to be sealed; a content C filled in the cylindrical film 115 and enclosed by the seal 111; wraps around the focused portion of the cylindrical film 115 and crosses the focused portion There is provided a tape 118 which is welded to a tubular film 115 by a seal 111 and formed into a bag shape by forming two seals 112 and 113 in a direction crossing the seal 111.

  When configured in this way, the end portion is sealed together with the tape, and the sealed end portion is surrounded by a bag in a bag shape, so that deformation of the end portion is suppressed with the tape even when subjected to the pressure of the contents. It becomes a package with high sealing performance and high pressure resistance. Further, since the three sides other than the opening of the bag-like tape are sealed, the outer side of the tape is softened, and the package does not damage the film of the other package at the end. .

  According to the present invention, a first seal is sealed together with the tape in the absence of the overlapped tape, the second seal is sealed in the direction intersecting the first seal, and the tape is sealed in the second seal. Since the third seal is formed in the direction crossing the first seal on the opposite side across the absent portion converged with respect to the tape, the end is sealed together with the tape and the three sides are sealed Can produce a package with the end surrounded by the tape, and even when subjected to the pressure of the contents due to volumetric expansion due to movement or heat treatment of the contents in the package, the deformation of the end is suppressed with the tape, A package having high sealing performance and high pressure resistance, and a package manufacturing apparatus and a package manufacturing method for manufacturing the package. Furthermore, since the first seal, the second seal, and the third seal are made, the three sides of the tape are sealed and formed thinly by the sealing device, so that the outer edge of the tape becomes soft and other ends at the end. It becomes the package which does not damage the film of a package, and the package manufacturing method and package manufacturing apparatus which manufacture this package.

  Embodiments of the present invention will be described below with reference to the drawings. In each figure, the same or equivalent devices are denoted by the same reference numerals, and redundant description is omitted.

  With reference to the block diagram of FIG. 1, the packaging body manufacturing apparatus 1 which is the 1st Embodiment of this invention is demonstrated. FIG. 1A is a configuration diagram illustrating the overall configuration of the packaging body manufacturing apparatus 1. FIG. 1B is a partial perspective view illustrating the configuration of the focusing device 70, and FIG. 1C is a partial perspective view illustrating the configurations of the ultrasonic welding device 100 and the tape supply device 90. The up and down on the paper surface of FIG. 1A corresponds to the up and down in the actual vertical direction, and a cylindrical film F1 described later runs so as to flow from top to bottom in the drawing. That is, the upper side is the upstream side in the traveling direction of the tubular film F1 in the filling and packaging operation, and the lower side is the downstream side in the traveling direction. The belt-like film wound in a roll shape is rotatably supported as an original fabric 21. The belt-like film F drawn out from the original fabric 21 travels while being guided by the guide rollers 22 </ b> A and 22 </ b> B and is guided to the forming plate 11. The original fabric supply device 20 is configured by the original fabric 21 and the guide rollers 22A and 22B. The material of the belt-like film is preferably a vinylidene chloride resin for heat welding, and may be another olefin resin. The belt-like film may be a single layer or a multilayer.

  The forming plate 11 has a cylindrical shape that opens up and down. In addition, there is a circumferential gap extending in the longitudinal direction at one place in the circumferential direction. The upper edge of the forming plate 11 is curved and inclined, and the belt-like film F is formed into a continuous cylindrical film F1 having an overlapping portion at the side edge by being guided along the inner surface thereof. A guide tube 12 is suspended below the forming plate 11 on the downstream side, and the tubular film F1 is guided to travel downstream while maintaining its tubular shape.

  The overlapping portion of the tubular film F1 guided by the guide tube 12 is welded while being pressed by the vertical sealing device 13 and is vertically sealed. Ultrasonic welding is preferable as the welding means by the vertical seal device 13, but other than this, resistance heating welding, high frequency dielectric heating welding, laser heating welding, molten resin droplet welding, and other various welding means can be used. . In addition, the vertical seal may be a so-called jointed sticker or an envelope sticker.

  In the upper part of the package manufacturing apparatus 1, a filling apparatus 30 including a pump 31 and a nozzle 32 for filling the vertically sealed cylindrical film F1 with the contents C is provided. The nozzle 32 is connected to a pump 31 installed above the forming plate 11, and the tip is introduced into the guide tube 12. The tip of the nozzle 32 opens on the downstream side of the vertical sealing device 13. The pump 31 may be installed not in the upper part of the forming plate 11 but in another position where the contents are easily replenished, and connected to the nozzle 32 by piping. In particular, when filling a relatively heavy content such as kneaded food, the kneaded food stored in a container installed on the ground is pumped to the position of the nozzle 32 by a pump and supplied. Is good.

  A feed roller 14 that is a feed device is provided on the downstream side of the guide tube 12 and the nozzle 32. The pair of cylindrical feed rollers 14 continuously conveys the tubular film 15a filled with the contents C into the vertically sealed tubular film F1 in a narrow and downward direction.

  An ironing device 40 is provided on the downstream side of the feed roller 14. The ironing roller 41 of the ironing device 40 has a cylindrical outer surface extending in a direction perpendicular to the paper surface in FIG. 1, and the length in the perpendicular direction is at least longer than the folding width, and is supported by the arm body 42. The “folding width” means the width when the tubular film 15a is flattened, in other words, the half length of the circumferential length of the tubular film 15a. The arm body 42 can swing around its one end 42a, and a lateral member 43 is connected to the middle part via a pin or the like. When the pair of lateral members 43 moves in the proximity direction, the cylindrical film 15 a is narrowed by the pair of squeezing rollers 41. When the horizontal member 43 moves backward in the separation direction, the squeezing roller 41 does not narrow the cylindrical film 15a. Thus, the absent portion 15b of the contents C is formed in the traveling cylindrical film 15a by a predetermined distance in the traveling direction. The ironing device 40 is not limited to a roller as long as the absent portion 15b of the contents C can be formed flat on the tubular film 15a, and for example, the tubular film 15a is crushed from both sides with a flat member, and the contents are distributed up and down. It may be something like this. Such crushing is also included in the concept of “squeezing” here.

  An ultrasonic welding device 100 is installed on the downstream side of the ironing device 40. Further, a focusing device 70 having two sets of focusing plates 71 a, 72 a, 71 b and 72 b above and below the ultrasonic welding device 100 is installed together with the ultrasonic welding device 100. Further, the tape supply device 90 that supplies the tape that is sealed together with the tubular film 15a and reinforces the sealed portion to the sealed portion is an ultrasonic welding device 100 and a focusing device as viewed from the central axis of the tubular film 15a. It is installed in a direction orthogonal to 70.

  As shown in the partial perspective view of FIG. 1B, the converging device 70 includes converging plates 71 and 72 (71a and b are collectively referred to as 71 and 72a and b are collectively referred to as 72). The film is sandwiched in the width direction of the flat film. The opposing focusing plates 71a (b) and 72a (b) reciprocate close to each other and then away from each other. This reciprocation is performed in a direction orthogonal to the reciprocation of the ironing device 40. That is, in FIG. 1 (a), the focusing device 70 is also drawn so as to reciprocate on the paper surface, but actually it reciprocates in a direction perpendicular to the paper surface. In the converging plates 71 and 72, V-shaped converging grooves are formed at opposing edges on the film side. When the opposing focusing plates 71 and 72 are close to each other, the left and right focusing plates 71 and 72 overlap to form one small space between the groove bottoms of the respective V-shaped grooves. If a U-shaped notch is formed in the groove bottom of the V-shaped groove, a circular space is formed between the U-shaped bottoms when the focusing plates 71 and 72 are close to each other, which is preferable.

  In the ultrasonic welding apparatus 100, a horn 50 and an anvil 60 are arranged to face each other with a film interposed therebetween. The ultrasonic horn 50 and the anvil 60 reciprocate in the same direction as the reciprocating movement of the focusing plates 71 and 72. That is, reciprocation in a direction perpendicular to the paper surface of FIG. When the focusing plates 71 and 72 of the focusing device 70 are close to each other, the horn 50 and the anvil 60 are also close to each other. The horn 50 and the anvil 60 seal the absent portion 15b focused by the focusing plates 71 and 72 while narrowing the absent portion 15b and welding the film.

  The tape supply device 90 and the ultrasonic welding device 100 will be described with reference to a partial perspective view of FIG. The tape supply device 90 is a device for supplying a tape for reinforcing a portion to be sealed. The tape supply device 90 is a wound tape (not shown), a pair of cylindrical rollers 93 for feeding the tape, and a predetermined tape. It has a tape cutter (not shown) that cuts to a length, and a holder 91 that holds the cut tape and overlaps the absent portion 15b. The surface 94 of the holder 91 that holds the cut tape faces the direction in which the cylindrical film 15a travels, and is formed in a concave shape. The concave surface 94 sucks air to suck the tape. Many suction ports 92 are formed. The suction port 92 is connected to a suction pump (not shown) to suck air and vacuum-suck the tape. A thin concave groove 95 is further formed at the bottom of the concave surface portion of the concave surface 94. Here, the concave surface means a state in which the surface of the holder 91 facing the cylindrical film 15a is depressed, and is preferably a smooth semicircular or semielliptical shape, but other shapes are also used. May be.

  When the tape is fed from the roller 93, the holder 91 sucks air from the suction port 92, and sucks the tape against the concave surface 94 by the suction force to make the tape concave and support it. At that time, in order to reliably insert the tape into the concave groove 95, the tape may be fitted into the concave groove 95 by plug assist (not shown). The holder 91 holds the tape and protrudes in the direction of the concave surface 94, and superimposes the tape on the absent portion 15b.

  The dimensions and the like of the tape can be appropriately determined according to the design specifications of the package, but the width of the tape is preferably 10 to 100 mm and the thickness is preferably 10 to 300 μm. A plurality of tapes may be stacked as necessary. The material of the tape is preferably vinylidene chloride resin, but may be olefin resin. Further, the tape may be configured of a single layer or multiple layers. The material of the tape is preferably the same as the material of the film, but may be a different material that can be welded.

  As shown in the perspective view of FIG. 2A, it is preferable that the tape supply device 190 has two stages of holders 191a and 191b. By holding the tape with the upper and lower holders 191a and 191b, the shape and position of the tape become constant. Therefore, the effect of increasing the sealing property and pressure-resistant strength of the converging part at the end of the package with the tape is stabilized.

  Further, as shown in the perspective view of FIG. 2B, the concave groove 95 (see FIG. 1) may not be formed at the bottom of the concave surface 294 of the holder 291 of the tape supply device 290. . In particular, as will be described later, when sealing is performed on the holder 291 after sealing in the transverse direction, sealing is performed on the three sides of the tape without forming the concave groove 95 (see FIG. 1). be able to. In this case, it is preferable that the concave surface 294 is formed deep in order to secure a space for sealing on the tape supply device 290 side in the tape.

  The horn 50 includes a horn 55 having a long crimping surface in the horizontal direction, and two horns 56 and 57 having a crimping surface long in the vertical direction at both ends of the horn 55. The anvil 60 includes an anvil 65 having a long crimping surface in the horizontal direction, and two anvils 66 and 67 having a crimping surface long in the vertical direction at both ends of the anvil 65. The horn 55 and the horns 56, 57 form H-shaped crimping surfaces 55a, 56a, 57a. Similarly, an anvil 66 and an anvil 67 are connected to both ends of the anvil 65. The horn 55, the horn 56, and the horn 57 may be combined with separately manufactured horns, may be combined with each other, or may be manufactured integrally. Moreover, the anvil 65, the anvil 66, and the anvil 67 may combine the anvil manufactured separately, may be integrated with each other after combining, or may be manufactured integrally. However, in the packaging body manufacturing apparatus 1 of the present embodiment, the horn 57 and the anvil 67 on the tape supply device 90 side are separated from the horns 55 and 56 and the anvils 65 and 66 and the tape is held by the holder 91. However, after sealing with the horns 55 and 56 and the anvils 65 and 66, holding | maintenance of the tape in the holder 91 is stopped, and the holder 91 is retracted from the absent part 15b, it seals with the horn 57 and the anvil 67. It is the composition which does.

  Instead of the ultrasonic welding apparatus 100, a first seal that traverses the absent portion 15b focused together with the tape, two second seals in a longitudinal direction that is a direction intersecting the first seal, and a third seal A resistance heating welding apparatus, a high frequency dielectric heating welding apparatus, a laser heating welding apparatus, and other various welding apparatuses configured to perform sealing can be used.

  A cutting device 80 is provided downstream from the focusing device 70, the tape supply device 90, and the ultrasonic welding device 100 by a predetermined interval in which the absent portion 15 b is formed, that is, a length of one package 110. Yes. The cutting device 80 includes a pair of cutters 81. The cutter 81 is plate-shaped, and a sharp blade portion is provided on the side where the film to be cut (absent portion 15b) is present. The cutter 81 also reciprocates similarly to the focusing device 70 and the ultrasonic welding device 100. The reciprocating motion of the cutter 81 also reciprocates in the direction perpendicular to the paper surface of FIG. 1A, similarly to the ultrasonic welding device 100 and the focusing device 70. Accordingly, it is preferable to use a common drive device (not shown) for the configuration because the configuration is simplified.

  Further, the converging device 70, the tape supply device 90, the ultrasonic welding device 100, and the cutting device 80 converge the absent portion 15b while moving downward at the same speed as the cylindrical film 15a is sent downward, and the tape It is preferable to perform a so-called “worship motion (box motion)” in which the absence portion 15b is opened and returned to the upper position after being cut by supplying and sealing and cutting. Therefore, when the focusing device 70, the tape supply device 90, the ultrasonic welding device 100, and the cutting device 80 are installed on a common gantry (not shown), the configuration is simplified.

  Then, manufacture of the package 110 using the package manufacturing apparatus 1 which is the 1st Embodiment of this invention shown in FIG. 1 is demonstrated. The belt-like film F is pulled out from the original fabric 21 at a predetermined speed, is applied with a predetermined tension by the guide rollers 22A and 22B, is travel-guided, and reaches the forming plate 11.

  The belt-like film F that has reached the forming plate 11 is formed in a cylindrical shape having overlapping portions at the side edges, and the overlapping portions are welded by the vertical sealing device 13. In this way, the vertically sealed tubular film F1 is formed. The cylindrical film F1 is filled with the contents C from the pump 31 through the nozzle 32. The cylindrical film 15 a filled with the contents C is conveyed downstream by the feed roller 14. The pair of feed rollers 14 conveys the cylindrical film 15a with a small pressure so as to locally crush the cylindrical film 15a, but the crushed cylindrical film 15a passes through the position of the feed roller 14 due to the internal pressure of the contents C. Return to the original cylindrical shape.

  The cylindrical film 15a is intermittently compressed over a predetermined length by a pair of squeezing rollers 41, and absent portions 15b having no contents C are formed at a predetermined interval.

  Here, in addition to FIGS. 1 and 2, focusing, sealing, and cutting of the package will be described with reference to the partial perspective view of FIG. 3 and the partial perspective view of FIG. As shown in FIG. 3A, the flattened absent portion 15b is focused by the focusing device 70 in a direction crossing the flat surface. As shown in FIG. 3B, the absent portion 15b is gathered together by focusing.

  On the other hand, as shown in the partial perspective view of FIG. 4, in the tape supply device 90, the tape 120 is sent to the holder 91 side while being compressed by the roller 93 (see FIG. 4A), and has a predetermined length. Then, it is cut (see FIG. 4B). The predetermined length is a length of the tape 120 that is longer than the length along the concave surface 94 and the concave groove 95 of the holder and protrudes from the concave surface 94 of the holder 91. The length that the tape 120 protrudes from the concave surface 94 is such a length that the protruding portion does not hang down but the second seal 122 can be performed at the protruding portion. Although it depends on the material and thickness of the tape, the protruding length is suitably 1 mm or more and 15 mm or less, preferably 3 mm or more, and preferably 10 mm or less. The cut tape 120 is sucked by the suction port 92 of the holder 91 to be formed into a shape in which the concave surfaces are overlapped and held. The tape is inserted into the concave groove 95 by plug assist (not shown), and the shape of the tape 120 is adjusted. (See FIG. 4 (c)). The holder 91 may be narrower than the width of the tape 120 or the same width.

  Next, as shown in FIG. 3C, the tape 120 formed in a shape in which the concave surfaces are overlapped is overlaid on the converged absent portion 15b. Here, the term “overlapping” means that the tape 120 is brought close to or in contact with the absent portion 15b so that the concentrated absent portion 15b is positioned at the bottom of the large concave shape of the tape 120. That is, the holder 91 protrudes in the direction of the absent portion 15b.

  Next, the tape 120 and the absent portion 15b are sandwiched and welded by the horn 50 and the anvil 60. First, as shown in FIG. 3 (d), the first seal 121 and the second seal 122 are simultaneously applied by the horns 55 and 56 and the anvils 65 and 66. By this sealing, the contents in the longitudinal direction of the tubular film 15a and the circulation of air and moisture are sealed. Therefore, the sealed package 110 is obtained. Further, the tape 120 and the absent portion 15b are sealed together. Therefore, the tape 120 remains in a predetermined position without being held by the holder 91 (see FIG. 1). Therefore, the holder 91 moves backward from the direction of the absent portion 15b.

  As shown in FIG. 3 (e), after the holder 91 has moved backward, the third seal 123 is applied by the horn 57 and the anvil 67. By applying the third seal 123, the tape 120 has a bag shape with the opening directed in a direction including the contents of the package. That is, there are two bags, a bag 124 opened downward on the vertical lower side of the tape (downstream side of the cylindrical seal 15a) and a bag 125 opened upward on the vertical upper side of the tape (upstream side of the cylindrical seal 15a). . When the seal 123 on the tape supply device 90 side is provided after the seal 121 and the seal 122 are applied, the holder 91 does not have the concave groove 95, and the holder shown in FIG. It is good also as a shape like 291.

  Here, the horn 55 and the anvil 65 are crimped by the tape 120 sandwiching the converged absent portion 15b. On the other hand, it is only the tape 120 that the horn 56 and the anvil 66 and the horn 57 and the anvil 67 are pressure-bonded. Therefore, what is crimped by the horn 55 and the anvil 65 is thicker. Therefore, the pressure-bonding surfaces 66a and 67a of the anvils 66 and 67 are projected to the horn 56 side from the pressure-bonding surface 65a of the anvil 65. By extending the crimping surfaces 66a and 67a of the anvils 66 and 67, a thinner object to be welded (tape 120) can be crimped with a predetermined pressure. In addition, the pressure on the thicker object to be welded (the converged absent portion 15b and the tape 120) is too large and becomes too thin after sealing, so that the pressure strength is not reduced. The position of the crimping surface may be adjusted by the crimping surface 55a of the horn 55 and the crimping surfaces 56a and 57a of the horns 56 and 57.

  As shown in FIG. 3 (f), after the first seal 121, the second seal 122, and the third seal 123 are applied in the ultrasonic welding measure 100, the tubular film 15 a is removed by the cutting device 80. 1 is cut at the part where the seal 121 is made. By being cut, it becomes a single package 110, which is unloaded from the package manufacturing apparatus 1 and shipped as a product through necessary processing such as boiling and retort. Further, since the tape 120 is cut at the bottoms of the two bags 123 and 124, each becomes a bag surrounding the end portion 116 of the package 110 (see FIG. 8).

  As described above, according to the package manufacturing apparatus 1 according to the first embodiment of the present invention, the sealed portion of the end of the package 110 is surrounded by the bag of the tape 120. When the sealed portion is surrounded by a bag, for example, when the internal pressure acts on the package 110 by the content C, such as when the content C expands and the film contracts, the seal is sealed. The deformed portion is restrained by the tape 120 bag. Therefore, the stress acting on the film of the sealed part is reduced, and the sealed part is less likely to be damaged. That is, the pressure strength is increased. Furthermore, in the conventional package that seals the tape integrally with the tubular film, the tape is often boiled and the appearance is often deteriorated in the package that is heated by boil for cooking. By making it into a shape, it is possible to prevent it from giving up. In addition, since the seals 121, 122, and 123 are applied to the outer edge of the bag-like tape 120, the outer edge of the tape 120 becomes thin. That is, the outer edge of the tape 120 becomes soft, and there is no possibility of damaging the film of another package by the end portion.

  Up to this point, the embodiment in which the first to third seals 121 to 123 are applied in the ultrasonic welding apparatus 100 including the horn 50 having the H-shaped crimping surface and the anvil 60 has been described. The shape is not limited to an H-shape.

  When sealing as a package is obtained by converging and transverse (first) sealing, as shown in the partial perspective view of FIG. 5A, the H-shaped horn 150 and the anvil 160 are cut. A notch may be provided. The second sealing horn 156 and the third sealing horn 157 of the horn 150 are provided with notches above and below the portion connected to the first sealing horn 155. Similarly, the second sealing anvil 166 and the third sealing anvil 167 of the anvil 160 are provided with notches above and below the portion connected to the first sealing anvil 165. As a result, the pressure-bonding surfaces 155a, 156a, and 157a of the horn 150 and the pressure-bonding surfaces 165a, 166a, and 167a of the anvil 160 have a shape in which H-shaped vertical bars are broken lines. By providing the notches in this way, the seals 221, 222, and 223 on three sides are applied at a time as shown in the partial view of FIG. 5B while the tape is being held by the tape supply device 190. Can do. That is, when the horn 150 and the anvil 160 are close to each other, the holders 191a and 191b are located at the notches of the horn 150 and the anvil 160. Therefore, the horn 150 and the anvil 160 do not mechanically interfere with the holders 191a and 191b, and the holders 191a and 191b protrude to the absent portion 15b side, and the horn 150 and the anvil 160 cause the absent portion 15b. And the tape can be sealed. As shown in FIG. 5B, the sealed portion includes a first seal 221 in a direction crossing the absent portion 15b, and a second seal 222 extending in a broken line shape in a direction intersecting the first seal 221. And the third seal 223. Thus, even if a portion that is not sealed is included in the middle, the direction in which the sealed portions are arranged is defined as the seal direction. The cutouts of the H-shaped horn 150 and the anvil 160 may be provided only on the tape supply device 190 side, that is, on the third sealing horn 157 and the third sealing anvil 167. The seal horn 155 and the first seal anvil 165 may be provided only at one place on the upper side or the lower side. In this case, the tape supply device 190 has a one-stage holder.

  Alternatively, as shown in FIG. 5C, the tape 120 is made up of a first seal 321 that traverses the absent portion 15b, and a second seal 322 and a third seal 323 that seal the apex portion of the tape. You may form in a bag shape. Strictly speaking, the side of the bag is not completely closed, but in such a case as well, the bottom of the bag is closed and the apex corner is closed, thus forming a bag. Also, the two apex angle seals 322, 323 on one side are seals in the direction of the side.

  As described above, each of the pressure bonding members 155, 156, and 157 of the horn 150 is integrally formed by configuring the three side seals 221 to 223 and 321 to 323 at one time, Each crimping member 165, 166, 167 can be integrally formed. Further, by operating as one body, the operation mechanism of the ultrasonic welding apparatus 200 can be simplified, and since three sides can be sealed with a single seal, the sealing time is shortened, and the work efficiency of the entire packaging body manufacturing apparatus 1 is improved. Will also improve.

  Then, with reference to the flowchart of FIG. 6, the manufacturing method of the package 110 which is the 2nd Embodiment of this invention is demonstrated. Here, the packaging body is not limited to the packaging body manufacturing apparatus 1 (see FIG. 1) according to the first embodiment of the present invention, and the packaging body may be manufactured by any manufacturing apparatus. First, a belt-like film is formed into a cylindrical shape by overlapping side edges with a forming plate or the like to form a cylindrical film (step St1). By vertically sealing the overlapping portion of the side edges of the tubular film, the vertically sealed tubular film is formed (step St2). Then, the cylindrical film is filled with the contents from the nozzle inserted into the cylindrical film (step St3).

  By squeezing the cylindrical film filled with the contents, a non-content absence portion having a predetermined length and having a predetermined length is formed flat (step St4). The formed absent part is converged in a direction along the flat surface (step St5). The tape is stacked on the absent portion that has become narrowed by focusing (step St6). The tape is concave and is stacked so that there is an absence at the bottom.

  At the center of the absent portion, the absent portion is sealed in the transverse direction together with the tape (first seal) (step St7). By this sealing, the tape and the absent portion are integrated, and the contents in the longitudinal direction of the tubular film and the circulation of air and moisture are sealed. Therefore, it becomes a sealing package.

  In order to close the open portion of the concave tape, a second seal is made in a direction intersecting the first seal, that is, in a direction crossing the tape (step St8), and is absent from the second seal. A third seal is made in the direction of longitudinally cutting the tape on the opposite side across the section (step St9). With the second seal and the third seal in the longitudinal direction, the tape is sealed on both sides across the absent portion. Together with the transverse seal, the tape is in the form of two bags connected to the bottom that open in the direction of the tubular film filled with the contents. Note that the first to third seals may be sealed first, or may be sealed simultaneously as described above.

  Next, it cut | disconnects in the part by which the 1st seal was carried out, and becomes one package (step St10). Since the first sealed portion is cut, the tape becomes two bags surrounding the sealed portion at the end.

  During the above operation (steps St1 to St10), the film is continuously fed (St20). That is, the tape stack (step St6), the first seal (step St7), the second seal (step St8), and the third seal (step St9) are operated while feeding the film.

  According to the method for manufacturing a package according to the second embodiment of the present invention described above, the tape becomes a bag surrounding the sealed portion at the end of the package, so that the sealed portion is deformed by the internal pressure. This has the effect of suppressing the sealing and reinforcing the sealed portion. That is, it becomes a manufacturing method of a package with high sealing performance and high pressure strength. Further, the first seal, the second seal, and the third seal form a sealed portion of the three sides other than the opening of the bag-like tape, and these outer edges are thinned by being sealed. Since it is formed, it is soft and there is no possibility of damaging the film of another package by the end of the package during transportation.

  Heretofore, the packaging body manufacturing apparatus 1 or the packaging body manufacturing method that surrounds and seals the end portion with one tape 120 has been described. However, by sealing two or more tapes, a bag at the end portion of the packaging body is sealed. A shaped tape may be formed.

  Subsequently, a package 110 according to a third embodiment of the present invention will be described with reference to FIG. 7A is a front view of the package 110, FIG. 7B is a diagram (top view) seen from the direction in which the film 115 of the package 110 is vertically sealed, and FIG. It is the figure (side view) seen from the longitudinal direction. The cylindrical film 115 that wraps the contents C is formed by overlapping the side edges of the belt-like film and vertically sealing them. Along the vertical seal portion 114, the overlapped excess portion 117 overlaps the cylindrical film 115. The material of the film 115 is vinylidene chloride resin, but other olefin resins may be used, and the film 115 may be a single layer or a multilayer.

  The longitudinal end 116 of the film 115 is converged and sealed and surrounded by a single tape 118. The tape 118 surrounds the converging end portion 116 of the film 115 and seals the outer edge (111, 112, 113) to form a bag shape. That is, the narrowed end portions are sandwiched between tapes 118 to seal the longitudinal ends 111 of the package 110, and the sandwiched and stacked side portions 112 and 113 are sealed. A seal 111 at the end in the longitudinal direction is sealed together with the film 115 to seal the end of the package 110. The material of the tape 118 is preferably a vinylidene chloride resin, but other olefin resins may be used, and the tape 118 may be a single layer or multiple layers. The material of the tape 118 is preferably the same as that of the film 115, but may be a different material that can be welded.

  By forming the tape 118 into a bag shape, the end portion 116 of the film 115 is prevented from being deformed when an internal pressure is applied due to the expansion of the contents C or the contraction of the film 115. That is, the package 110 has high sealing performance and increased pressure strength. In addition, the package does not lose its appearance due to the tape fluttering. Further, the three sides 111, 112, and 113 of the tape 118 in the form of a bag are sealed, and as a result, are formed thin, so that they are soft and damage other packaging at the end of the tape 118 during transportation. There is nothing to do. The contents C are typically sausages, stick cheeses, and the like, but may be foods other than these, or may be building materials other than foods such as caulking materials, cosmetics, and the like. It is preferable that a single tape 118 surrounds the converging longitudinal ends 116 of the film 115 to form a bag, because the manufacturing of the package does not complicate the apparatus and the like. The tape may be sealed to form a bag.

  FIG. 8 shows a modification of the shapes of the seals 111, 112, and 113 of the tubular film 115 and the two tapes 118. The example shown in FIG. 8A is an example in which the seal 111 traversing the end is shifted slightly inward from the end. In this way, even if the sealed thin portion is not located at the outer edge, if the width of the unsealed tape 118 located at the outer edge is narrow, the film of the other package is damaged. It does not have enough strength. As shown in FIG. 8A, when a package having a seal shifted from the cutting position is manufactured using the above-described package manufacturing apparatus 1 or by the above-described package manufacturing method, the first The seal is composed of two parallel seal portions, and the tubular film is cut between the two first seal portions.

  In the example shown in FIG. 8B, in addition to the transverse seal 111, the two seals 112 and 113 in the direction intersecting the seal 111 are slightly shifted inward from the outer edge. The example shown in FIG. 8C is an example in which the seals 111, 112, and 113 on the three sides are slightly shifted inward from the outer edge and there is no seal portion reaching the outer edge. The example shown in FIG. 8D is an example in which only the seals 112 and 113 are slightly shifted inward. In any example, the tape 118 is formed in a bag shape, and the pressure strength is increased. Further, even when the sealed thin portion is not located at the outer edge, when the width of the unsealed tape 118 located at the outer edge is narrow, the film of the other package may be damaged. It has no strength.

  In the example shown in FIG. 8E, the transverse seal 111 is not linear but curved in the example shown in FIG. 8A so as to correspond to the swelling with respect to the internal pressure. By making such a curve, the internal pressure acts more uniformly on the seal 111, and the pressure resistance strength is improved. The seal shape may be a combination of these modified examples or other shapes, and is not limited to the above.

  The following manufactures the package according to the present invention, paying attention to the hardness of the seal part, whether the seal part damages the same vinylidene chloride resin film as the film generally used for the package. The results of actual measurement and confirmation of the effect of the present invention will be described. The material of the cylindrical film for packaging is a vinylidene chloride resin film having a thickness of 40 μm, the material of the tape is the same vinylidene chloride resin as the cylindrical film, and the shape of the tape is 18 mm long, 16 mm wide, The thing of thickness 80micrometer was used. The tape was formed into a concave shape, and was overlapped on the end of the package, and three sides were ultrasonically welded. The package was manufactured with a diameter of 20 mm and a length of 150 mm, filled with a fish sausage emulsion as a content, and boiled in boiling water for 20 minutes.

  The conditions for sealing the tubular film and tape by ultrasonic welding are preferably a vibration frequency of 15 to 50 kHz, a vibrator amplitude of 5 to 35 μm, and a nominal output of 300 to 600 W, more preferably, The vibration frequency is 40 kHz, the vibrator amplitude is 5 to 15 μm, and the nominal output is 300 W. Therefore, sealing was performed with an oscillation frequency of 40 kHz, a vibrator amplitude of 15 μm, and a nominal output of 300 W. However, the nominal output and vibration frequency can be set to arbitrary values as long as they are within the scope of regulations for occupational safety and health.

  The above-mentioned package is stretched without slack, and a 40 μm thick vinylidene chloride-based resin film (Kureha Chemical Industry Co., Ltd., trade name: Kurehalon film) has a length of 1 m from the end in the longitudinal direction, that is, the seal portion. Naturally dropped 1 downward. Then, it was visually determined whether or not the film was damaged such as tearing of the film or pinhole due to the collision of the package. The number of specimens was 50, and the specimen that caused damage to the film was regarded as a defective specimen.

  In the package according to the present invention, no film tear or pinhole was visually observed, and the number of defective samples was 0 (zero). Since the seal part is thin and soft, it was confirmed that the end of the package having the tape sealed on the three sides does not damage the film of the door package.

(Comparative Example 1)
In order to compare the effects of the present invention, only one flat film is superimposed on only one surface of the converged absent portion 15b (see FIG. 3), and only the first seal that crosses the convergent portion by ultrasonic welding is used. The package was manufactured in the same manner as in Example 1 except for the above. A defective sample was determined for 50 of the packaging bodies in the same manner as described above. As a result, two defective samples having pinholes in the film were found. There were no defective specimens that caused film tearing. That is, it has been found that simply wrapping the tape and applying a transverse (first) seal may damage the film of the other package.

(Comparative Example 2)
Further, without using a reinforcing tape, a first seal that traverses only the absent portion 15b focused by ultrasonic welding (see FIG. 3) is applied. Manufactured. A defective sample was determined for 50 of the packaging bodies in the same manner as described above. As a result, one defective sample that caused film tearing and three defective samples that caused pinholes in the film were found. That is, it has been found that there is a possibility that a film of another package may be damaged even in a package using no tape.

It is a figure explaining the package body manufacturing apparatus which is the 1st Embodiment of this invention. (A) is a block diagram explaining the whole structure of the package body manufacturing apparatus which is the 1st Embodiment of this invention. (B) is a fragmentary perspective view explaining a focusing apparatus. (C) is a fragmentary perspective view explaining a tape supply apparatus and an ultrasonic welding apparatus. It is a perspective view explaining the modification of a tape supply apparatus. (A) shows the example which provided the holder in two steps up and down, (b) shows the example which does not form a concave groove in the bottom part of a concave surface. It is a fragmentary perspective view explaining the manufacturing process of a package body edge part. (A), (b) is a converged absence portion, (c) is where the tape is overlaid, (d) is where the first seal and the second seal are made, (e) is the third When the seal is made, (f) shows the cut portion. It is a fragmentary perspective view explaining supply of the tape in a tape supply apparatus. It is a figure explaining the ultrasonic welding apparatus which seals 3 sides at once. (A) is a fragmentary perspective view of an ultrasonic welding apparatus and a tape supply apparatus. (B) is the fragmentary figure of the package body explaining the seal shape of the package body edge part sealed with the apparatus shown to (a). (C) is the fragmentary figure of the package body with which the tape was sealed with the seal | crossing which crosses an absent part, and the seal | sticker of the vertex angle of a tape. It is a flowchart explaining the manufacturing method of the package which is the 2nd Embodiment of this invention. It is a three-view figure explaining the package which is the 3rd Embodiment of this invention. It is the fragmentary figure of the package which shows the modification of the seal shape of the package which is the 3rd Embodiment of this invention.

Explanation of symbols

C Contents F Band-like film F1 Tubular film 1 Packaging body manufacturing apparatus 11 Forming plate 12 Guide cylinder 13 Vertical seal apparatus 14 Feed roller 15a Packaging body 15b Absent portion 20 Fabric feed apparatus 21 Fabric 22A, 22B Guide roller 30 Filling apparatus 31 Pump 32 Nozzle 40 Ironing device 41 Ironing roller 42 Arm body 43 Horizontal member 50, 150 Horn 55, 155 First sealing horn 56, 156 Second sealing horn 57, 157 Third sealing horn 55a, 56a , 57a, 155a, 156a, 157a Horn pressing surface 60, 160 Anvil 65, 165 First sealing anvil 66, 166 Second sealing anvil 67, 167 Third sealing anvil 65a, 66a, 67a, 165a 166a, 167a Anvil pressure bonding surface 70 Converging device 71, 72 (a, b) Converging plate 80 Cutting device 81 Cutter 90, 190, 290, 390, 490, 590 Tape supply device 91, 191a, 191b Holder 92 Suction port 93 Rollers 94, 194 ) Concave surface 100, 200 Ultrasonic welding device 110 Package 111, 112, 113 Sealed portion 114 (of tape) Vertical seal portion 115 Film 116 End portion of film 117 Overlapping portion of film 118 Tape 120 Tape 121, 221, 321 First seal part 122, 222, 322 Second seal part 123, 223, 323 Third seal part 124, 125 Bag 126 formed of tape Concave part of tape 127 Groove-shaped concave portions 391a, 391b, 4 formed on the concave bottom of the tape 1, 591a, 591b Holder 393a, 393b, 493a, 493b, 593a, 593b Feed roller 393c, 393d, 493c, 493d, 593c, 593d Guide roller 394a, 394b, 494, 594a, 594b (of holder) Ω type / Concave surface 396a, 396b, 496, 596a, 596b Tape cutter 398 Rotating body 399 (Rotating body) shaft 498 Core 499 Sealer

Claims (8)

An ironing device that flatly forms a non-existing portion of the content at predetermined intervals in the longitudinal direction of the tubular film with respect to the tubular film filled with the content;
A focusing device for focusing the absent portion in a direction crossing a flat surface;
A tape supply device for forming a tape in a concave shape and stacking the tape on the converged absent portion;
A first sealing device that performs a first seal with the tape in a transverse direction across the converged absence where the tape is stacked;
A second sealing device for performing a second seal so as to close the concave open portion of the tape;
A third seal device for performing a third seal in a direction intersecting the first seal on the opposite side of the tape from the converged absent portion with respect to the second seal;
Package manufacturing equipment. The tape supply device further forms a concave shape narrower than the concave shape at the bottom of the concave shape on the concave-shaped tape;
The packaging body manufacturing apparatus according to claim 1. The tape supply device has two stages in the longitudinal direction of the tubular film to hold the tape formed in the concave shape;
The packaging body manufacturing apparatus according to claim 1 or 2. The first sealing device, the second sealing device, and the third sealing device are configured as one ultrasonic welding device that melts a material to be welded by ultrasonic vibration energy and presses the material to be welded;
The ultrasonic welding apparatus includes a horn for pressing the object to be welded;
The package manufacturing apparatus of any one of Claim 1 thru | or 3. A raw material supply device for supplying a strip film;
A vertical sealing device for forming the tubular film by overlapping and sealing the side edges of the belt-shaped film;
A filling device for filling the cylindrical film with contents;
A cutting device for cutting the tubular film at the first sealed portion;
The package manufacturing apparatus of any one of Claim 1 thru | or 4. Supplying the band-shaped film and the contents to be filled to the packaging body manufacturing apparatus according to any one of claims 1 to 5 to manufacture a packaging body;
Packaging manufacturing method. A vertical sealing step of forming a tubular film by overlapping and sealing the side edges of the belt-shaped film;
A filling step of filling the cylindrical film with contents;
An ironing step of flatly forming a non-existing portion of the content at predetermined intervals in the longitudinal direction of the tubular film with respect to the tubular film filled with the content;
A focusing step of focusing the absent portion in a direction crossing a flat surface;
A tape supply step of overlapping the tape so as to surround the converged absence portion;
A first sealing step of performing a first seal with the tape in a transverse direction on the absent portion where the tape is stacked;
A second sealing step in which the tape is subjected to a second seal in a direction intersecting the first seal;
A third sealing step of performing a third seal in a direction intersecting the first seal on the opposite side of the taped tape from the converged absent portion with respect to the second seal;
A cutting step of cutting the tubular film at a portion sealed in the first sealing step;
Packaging manufacturing method. A tubular film that is filled with the contents, the ends are converged and sealed across the converged portions;
Contents filled in the tubular film and enclosed by the seal;
Tape that wraps around the converged portion of the tubular film, is welded to the tubular film by a seal that crosses the converged portion, and is formed into a bag shape by making two seals in a direction intersecting the seal And comprising:
Packaging body.

Images