JP6535927B2 - Liquid filling and packaging structure - Google Patents

Description

  The present invention relates to a non-self-supporting liquid-filled package formed by filling a liquid or viscous package which may contain foods, pharmaceuticals, cosmetics, various liquids, powders, granules and the like. The present invention relates to a liquid-filled packaging structure comprising an outer container for storing and holding the same to provide self-supporting property.

  Heretofore, as a liquid-filled package, for example, those of the type in which the liquid package is filled in a soft packaging bag provided with a non-return type film-like dispensing nozzle are disclosed in Patent Documents 1 and 2, etc. It is disclosed.

  In this liquid-filled package, when the film-like dispensing nozzle provided on the upper side edge of the packaging bag dispenses the liquid packaged material filled in the bag, the packaging bag body itself shrinks or collapses and deforms. It is characterized in that it is possible to prevent outside air from entering the bag by doing this. That is, the pouring nozzle automatically seals the pouring passage in the pouring nozzle by the wetting of the liquid package at the same time as the stop of the pouring of the liquid package (content), and the packaging bag It is characterized in that it exhibits a non-return function (self-seal non-return function) that prevents the entry of outside air into the interior.

  In addition, the applicant previously opened the tip end of the pouring passage when stopping pouring of the packaged object while leaving the self-seal reverse function of the film-like pouring nozzle described in Patent Documents 1 and 2 as it is. As a packaging bag that enables smooth pouring and fine adjustment of the pouring volume without interfering with the pouring characteristics of the film, and also has good drainage property and no dripping, An application is made for a packaging bag which is attached by projecting obliquely upward from the upper end of the bag body (unpublished at the time of filing of the present application).

Such liquid-filled packages are all non-self supporting because they are formed of a soft laminated film, and it is inconvenient to use them alone as they are, so it has been difficult to As shown in Document 3, it was housed and held in a self-supporting outer container to take the form of a packaging structure .

JP 2005-15029 A JP 2005-59958 A Patent No. 5540232

  By the way, in patent document 3, the projecting part is provided in the position corresponding to the film-like pouring nozzle of the non-self-supporting liquid filling package to be stored at one side edge upper part of the outer container, and the upper end to the lower end of the projecting part A curvilinear tear-inducing weir is provided over the film to expose the film-like dispensing nozzle.

  In this packaging structure, first, the projecting portion of the outer container is cut along the tearing guide bar to expose the tip of the film-like dispensing nozzle to the outside, and then the tip of the film-like dispensing nozzle is fingered Because opening operation of the outer container and the film-like dispensing nozzle is required to open the pouring outlet by tearing it by opening, the opening procedure is complicated and opening is difficult for children and elderly people etc. There was a possibility that the film-like dispensing nozzle might be deformed or broken in order to unseal from different positions or to tear it forcibly.

  Furthermore, the film-like dispensing nozzle is torn open with fingers etc. starting from the opening means such as I notch or V notch provided at a position close to the tip, but individual differences in tear force, tear direction etc. As a result, tearing in an unintended direction or fuzzing may occur at the end face due to the film elongation, and the liquid package adheres to it, causing poor liquid breakage and generation of dripping. There was a fear.

  Further, in this packaging structure, the leading edge of the projecting portion of the outer container is close to the tip opening position of the tip of the film-like dispensing nozzle located inside, so the tip portion of the film-like dispensing nozzle at the time of tearing operation of the outer container. There was a possibility that the hand etc. touched by mistake etc. and opened it accidentally. Therefore, although measures such as changing the opening direction (from top to bottom) of the film-like dispensing nozzle and the opening direction (from top to bottom) of the overhanging part are taken, it is not sufficient, and improvement has been desired. .

  Therefore, according to the present invention, a liquid material which has a simple opening method, does not cause deformation or breakage of the film-like dispensing nozzle, and can suppress generation of fuzzing on the tear end surface of the film-like dispensing nozzle The purpose is to provide a filled package.

The present invention has been developed to achieve the above object, and the gist thereof is a flexible package in which a film-like dispensing nozzle is protrusively provided on the upper edge portion or the side edge upper portion of a packaging bag body made of a laminated film. A liquid-filled packaging structure comprising: a liquid-filled package formed by filling a liquid or viscous package in a bag; and an outer container for storing and retaining the liquid-filled package. The outer container is an overhanging pouch which can be cut away along the tear-out guide bar at a portion corresponding to the film-like dispensing nozzle tip of the flexible packaging bag and which can expose the film-like dispensing nozzle tip. And the inner surface of the overhanging pouch portion and at least a portion of the outer surface of the distal end portion of the film-like dispensing nozzle are fused, and the distal end portion of the film-like dispensing nozzle is the Sachet Through both fusion bonding with, Ri simultaneously tear openable der Cut and overhang pouch portion along said tear inducing flaw,
Starting from the upper side edge of the outer container on the opposite side to the overlying pouch portion of the outer container, the tearing guide bar passes over the upper edge seal portion of the outer container and continues from the upper to the lower end of the overhung pouch portion. provided it characterized the Rukoto.

  In the present invention, since at least a portion (the separation portion) of the outer surface of the film-like dispensing nozzle is fused to the inner surface of the overhanging pouch portion of the outer container, it follows the tear-gut of the overhanging pouch portion. With the cutting, the tip of the film-like dispensing nozzle can be opened. Therefore, in the present invention, the outer container and the film-like dispensing nozzle can be opened simultaneously by one operation, and the opening operation can be easily performed even by a child or an elderly person. Furthermore, according to the present invention, since the tip of the film-like dispensing nozzle is instantaneously cut off as the protruding pouch portion is cut as described above, the film of the opening end face is less stretched and fuzzing occurs. There is no occurrence and it is possible to effectively suppress dripping.

  Further, in the present invention, the tear-inducing weir of the outer container starts from the side edge opposite to the film-like dispensing nozzle of the contained liquid-filled package and passes through the upper edge of the outer container Since it is provided from the upper part to the lower end of the part, the tearing route becomes long, and at the position of the overhanging pouch part, it can be easily opened with a small force by the tear propagation force accompanying the tearing from the starting point. In addition, since the overhanging sachet can be cut out along the tearing guide bar by pulling toward the outside of the outer container while holding the starting point portion, it is positioned inside along with the tearing out of the overhang sachet There is no fear that an excessive force is applied to the film-like dispensing nozzle, and the nozzle is not bent, deformed or damaged.

  Furthermore, since the start point of the tear-out guide bar is located on the side edge opposite to the film-like dispensing nozzle of the stored liquid filled package, the overhanging sachet portion where the film-like dispensing nozzle is located at the time of tearing There is no need to hold the film, and erroneous opening of the film-like dispensing nozzle can be suppressed.

It is a top view which shows the reference example of the liquid thing filling packaging structure of this invention. It is a top view which shows one Embodiment of the liquid thing filling packaging structure of this invention. FIG. 3 is a partially enlarged view showing a method for tearing the outer container along a tear-inducing weir of the liquid-filled packaging structure of FIG. 2;

Embodiments of the present invention will be described below based on the drawings.
The liquid-filled packaging structure 1 according to the present invention is, as shown in FIG. 1, as a reference example , a liquid-filled packaging body 3 in which a flexible or flexible packaging bag 2 is filled with a liquid or viscous package. And an outer container 4 for storing and holding the package 3.

The outer container 4 contains a non-self-supporting liquid-filled package 3 and has a cylindrical container for providing self-supporting property and regularity, for example, a laminate having a self-supporting bottom 4a as shown in FIG. A flexible packaging bag (standing pouch) made of a plastic film is preferably used.
The outer container 4 can be formed of a flexible material such as paper, a composite material of limestone (more than 50% of calcium carbonate) and plastic, metal or the like in addition to the plastic film.

  In addition, after the liquid substance filling package 3 is stored in the outer container 4, the outer surface of the packaging bag main body 2a and the inner surface of the outer container 4 are shown in the upper side position of both side edges of the packaging bag main body 2a in FIG. By fusion bonding (seal portion 12) to each other, the outer container 4 is firmly fixed.

The liquid-filled package 3 comprises a packaging bag body 2a made of a laminated plastic film comprising a base film layer and a sealant layer, and a film which is provided obliquely upward at the upper edge of the packaging bag body 2a in FIG. In the packaging bag 2 consisting of the discharge nozzle 5, for example, the packaged material is sealed and filled in a state of being evacuated by seal filling in a liquid, or a gas such as nitrogen is diffused in the packaged material It is formed by filling and packaging.

  The film-like dispensing nozzle 5 preferably has a self-seal check function, whereby the material in the packaging bag 2 is in contact with the open air before pouring, and of course during pouring and after pouring. As a result, it is possible to sufficiently prevent the oxidation, fouling, etc. of the package in the bag.

The self-seal reverse function refers to the filling of the liquid material in a state where the tip portion of the film-like dispensing nozzle 5 is opened (tip end opening 6 ) when the packaged material is dispensed from the liquid-filled package 3. The inner surface of the dispensing passage 8 of the film-like dispensing nozzle 5 is largely separated by tilting the package 3 to thereby separate the inner surface of the dispensing passage 8 of the film-like dispensing nozzle 5 by the water head pressure of the packaged material. We will do the necessary injections. At this time, the packaging bag main body 2a shrinks or collapses depending on the dispensing volume of the packaged material, so that the dispensing can be performed without taking in the outside air into the liquid material-filled package 3.

  On the other hand, when stopping the pouring of the package, the liquid material filled package 3 is raised and returned, and simultaneously with the rise and return, the pouring passage 8 is opened from the water head pressure of the package and the like. At the same time, in addition to the return to the original shape under the generation of a negative pressure due to the return flow of the packaged material into the packaging bag body 2a, in addition to the return to the original shape, the inner surfaces wetted by the thin film of the packaged material It is a function to make negative pressure adsorption under the assistance of the reduced pressure atmosphere in the main body 2a, and automatically seal the pouring passage 8 by sealing.

  The film-like dispensing nozzle 5 is provided to project obliquely upward from the upper end of the packaging bag body 2a in FIG. 1, but the present invention is not limited to this, and the film-like dispensing nozzle 5 is packaged It may be provided to project laterally from the upper side edge of the bag body 2a.

  The outer container 4 has an overhanging pouch portion 7 at a position corresponding to the film-like dispensing nozzle 5 of the stored liquid substance filling package 3, and the tip portion of the film-like dispensing nozzle 5 is in the overhanging pouch portion 7. It will be stored. In use, at least the tip end portion of the film-like dispensing nozzle 5 located inside can be exposed to the outside by cutting out the overhanging pouch portion 7 along the tearing guide bar 9.

  In the present invention, at least a portion of the outer surface on the tip end side of the planned opening position of the film-like dispensing nozzle 5 is fused (fused portion 11) to the sealant layer on the inner surface side of the overhanging pouch portion 7 It is characterized by With such a configuration, when the overhanging pouch portion 7 is pulled in the direction shown by the arrow in FIG. 1 and the overhanging pouch portion 7 is cut out along the tear induction weir 9, the film-like pouring out through the fusion spliced portion 11 The tips of the nozzles 5 are pulled together, and the tips of the film-like dispensing nozzles 5 are torn open.

At this time, since the tip portion of the film-like dispensing nozzle 5 is instantaneously cut out together with the cutting along the tear-inducing ridge 9 of the overhanging pouch portion 7, when tearing and unsealing with a conventional finger etc. Compared to the above, the elongation of the packaging film at the opening end of the film-like dispensing nozzle 5 is suppressed, the occurrence of fuzzing is reduced, and the occurrence of liquid drip can be effectively prevented.
Moreover, when the film-like dispensing nozzle 5 is opened, there is no need to touch the tip portion of the film-like dispensing nozzle 5 with a finger or the like, and the hygiene and safety of the film-like dispensing nozzle 5 can be ensured.

FIG. 2 shows an embodiment of the tear-inducing weir 9 , starting from a tear notch 10 provided on the upper side edge of the outer container 4 opposite to the overhanging pouch portion 7, and the upper edge seal 4a of the outer container 4 It is provided from the top to the lower end of the overhanging sachet 7 through the top.

  The tearing along the tearing guide bar 9 is performed by first gripping the tearing notch 10 with both fingers and pulling the upper part upward starting from the tearing notch 10 as shown by the arrow in the enlarged view of FIG. Along the tear-inducing weir 9, the tear is extended and propagated to the lower end of the sachet 7 at a stretch.

  According to this tearing guide rod 9, since the start point is at the position of the tearing notch 10, when tearing open the outer container 4, as in the prior art, the protruding pouch portion 7 where the film-like dispensing nozzle 5 is positioned is gripped etc. There is no possibility that the film-like dispensing nozzle 5 will be opened accidentally at the time of tearing along the tear-gut 9.

  In addition, since the tearing route is longer than in the past, the tear propagation force from the tearing notch 10 allows the tearing to be advanced with a small force from the top to the lower end of the overhanging pouch portion 7. As described above, since the overhanging pouch portion 7 can be cut out along the tearing guide bar 9 by grasping the tearing notch portion 10 and pulling it toward the upper side of the outer container 4, cutting off the overhanging pouch portion 7 Accordingly, there is no possibility that an excessive force is applied to the film-like dispensing nozzle 5 positioned inside, and the nozzle 5 is not bent, deformed, damaged or the like.

  The tear-inducing weir 9 is a single weir provided in the width direction of the laminated plastic film so as to extend in a-(minus) shape, a plurality of weirs perforated in a perforation shape, and an interval in the width direction It can be formed with a suitable shape and number of creases, such as a plurality of small hole-shaped creases provided, or a melting mark provided continuously or intermittently with a laser beam or the like. The depth, length, and other dimensions of such a tearing-in gutter are selected according to the thickness of the laminated plastic film, the material of construction, and the like.

  The technology employed in the liquid-filled package according to the present invention is not only applied to the illustrated liquid-filled package structure, but also as an application to powder / particulate containers or as an opening means for other containers. It is valid.

DESCRIPTION OF SYMBOLS 1 Liquid substance filling packaging structure 2 Packing bag 2a Packing bag main body 3 Packing body 4 Outer container 4a Upper edge seal part 5 Film-like pouring nozzle 6 Tip opening 7 Expansion small bag part 8 Pouring passage 9 Tear guiding ridge 10 Tear notch 11 Fused part 12 Sealed part

Claims (1)

Liquid filling in which a liquid or viscous material to be packaged is filled in a flexible packaging bag having a film-like dispensing nozzle projecting on the upper edge or side edge upper portion of the packaging bag body made of laminated film A liquid-filled packaging structure comprising: a packaging body; and an outer container for storing and retaining the liquid-filled packaging body,
The outer container is an overhanging pouch which can be cut away along the tear-out guide bar at a portion corresponding to the film-like dispensing nozzle tip of the flexible packaging bag and which can expose the film-like dispensing nozzle tip. And the inner surface of the overhanging pouch portion and at least a portion of the outer surface of the distal end portion of the film-like dispensing nozzle are fused, and the distal end portion of the film-like dispensing nozzle is the through both fusion bonding of the pouch portion, Ri simultaneously tear openable der cut and overhang pouch portion along said tear inducing flaw,
Starting from the upper side edge of the outer container on the opposite side to the overlying pouch portion of the outer container, the tearing guide bar passes over the upper edge seal portion of the outer container and continues from the upper to the lower end of the overhung pouch portion. liquid product filling packaging structure body provided, wherein Rukoto.

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