JPWO2013054411A1 - Paper outer container for liquid filling packaging - Google Patents

Abstract

A non-self-standing, amorphous liquid-filled package comprising a soft liquid packaging bag equipped with a non-return-type capless dispensing nozzle can be stably self-supported to the end, and the liquid-filled package An inexpensive paper container that can assist in the discharge of the packaged item and is excellent in storage and impact resistance.
A lower part conforming to a three-dimensional shape formed in a standing posture of a liquid filling package used for storing a non-self-supporting amorphous liquid filling packaging having a film-like check nozzle. Cut out at the boundary between the cylindrical body body and the pair of protective pieces that sandwich the film-like check nozzle and the cylindrical body body that has a polygonal shape in plan view, an elliptical body in plan view, and a plate-like upper part A holding part for holding and adhering and holding the upper lateral seal part of the liquid-filled package body is provided on the upper part of the cylindrical body main body.
[Selection] Figure 1

Description

  The present invention relates to a paper outer container for a liquid-filled package, and in a soft liquid packaging bag having a check-type capless dispensing nozzle at the upper part of one side edge, soy sauce, liquid seasoning, beverage, pharmaceutical In addition to stably holding self-supporting and amorphous liquid-filled packages filled with liquid packages such as cosmetics, they are effective for dispensing assistance and eco-friendly volume reduction. Propose a paper outer container.

  As for a liquid filling package formed by filling a liquid package in a soft liquid packaging bag, there are those disclosed in Patent Documents 1 and 2 according to the proposals of the inventors. The liquid-filled package disclosed in these documents is provided with a capless pouring nozzle with a self-sealing check function, and fluids such as soy sauce and other liquid seasonings and salad oil can be contained in the liquid. By filling with a seal, it is used as a liquid-filled package body in which only a substantially liquid package is enclosed (filled in a gasless state). This liquid-filled package has an outer non-return function that prevents the intrusion of substitute air from the outside when the contents are poured out, by bringing the inner surfaces of the laminated plastic films constituting the non-return nozzle into close contact with each other. To demonstrate. In such a package, the intrusion of air into the bag is prevented, so that the package contents in the bag do not cause chemical changes such as oxidation, and maintain the original quality for a long time. Although there is an advantage that it can be done, it does not have self-supporting or fixed form itself, so it is stored in a self-supporting packaging bag (standing pouch: outer bag) for transportation, storage, use, etc. That is how it is used.

JP 2010-18323 A JP 2010-260614 A

  In such a packaging structure comprising a conventional liquid-filled packaging body and an outer bag for holding and supporting the same, if there is sufficient packaged material in the liquid-filled packaging body, The lower part of the package body expands due to the weight of the inner package, and can stably stand on its own. There is a problem that if the outer bag is crushed and deformed in an amount corresponding to the volume of the extracted body, it cannot be made stable and independent only by the independence of the outer bag.

  In addition, since the liquid filling package has a non-return function as described above and can prevent the intrusion of outside air as described above, a cap (plug) is provided at the nozzle outlet. While there is an advantage that a fresh package can be easily poured out without opening and closing the cap, if the liquid-filled package falls down, the cover can be removed from the capless nozzle spout. There is a drawback that the package is likely to leak out, and it is necessary to make the liquid-filled package stable and self-supporting to the end.

  Therefore, there is a method of attaching a holder to the lower part of the packaging structure to give stable independence until the end, but there is a disadvantage that the cost increases. In addition, in order to provide high self-supporting properties, it is necessary to use a hard plastic material or the like that is hard as the holder material, and there is a problem that the cost is high.

  Further, the conventional self-supporting outer bag is composed of a bag-like cylindrical body having an elliptical shape in plan view, and when the plurality of these are arranged side by side, the storage is poor and wasteful space is generated, which is displayed on the product shelf. However, there is a problem that the storage property is poor when stored in a box or the like, and the impact resistance is inferior.

  Therefore, the present invention is capable of stably supporting a non-self-supporting, amorphous liquid-filled package comprising a soft liquid packaging bag having a non-return type capless dispensing nozzle to the end, and a liquid material. It is an object of the present invention to provide an inexpensive paper container that can assist in the discharge of an object to be packaged in a filled package and that is excellent in storage and impact resistance.

  As a result of intensive studies to develop a holder capable of overcoming the above-described problems of the prior art, the present inventor has developed a paper outer container for a liquid-filled package according to the following summary configuration.

  That is, the present invention relates to a paper outer container used for storing a non-self-supporting and amorphous liquid-filled packaging body in which a liquid package is filled in a soft packaging bag having a film-like check nozzle. In this outer container, the lower part is polygonal in plan view, the body part is elliptical in plan view, and the upper part is plate-like so as to conform to the three-dimensional shape formed when the liquid-filled packaging body is standing upright. And a pair of protective pieces for sandwiching the nozzles at positions corresponding to the film check nozzles on the upper edge of the cylindrical body, and the cylindrical bodies of these protective pieces A nozzle protection portion provided with a cutting guide rod for exposing the nozzle at a boundary portion with the main body, and an upper side seal portion of the liquid-filled package body on the upper portion of the cylindrical body main body. A holding part is provided to hold and adhere. A paper out containers for liquid product filling packaging body, wherein.

Moreover, in the paper outer container for the liquid filling package of the present invention,
(1) The cylindrical body main body has a hexagonal shape at the bottom (2) The cylindrical body main body has a polygonal bottom plate on the bottom bottom surface or bottom raised bottom surface. A folding line is provided at a substantially central position along the thickness direction of the liquid-filled package,
(3) The cylindrical body body is capable of being crushed until it becomes flat when the polygonal lower part or the elliptical body part is pressed through the folding line.
(4) The cylindrical body has a window hole in the oval trunk,
(5) The cylindrical body body is bent according to a fold line provided in the longitudinal direction in a substantially lower half of a single paper sheet, and the side ends thereof are bonded to each other so that the bottom is polygonal. A cylindrical body having a shape is formed, and polygonal bottom plate pieces are continuously provided from any two sides of the bottom of the cylindrical body, and these are overlapped with each other to form a cylindrical body. Assembling so that the lower part is a polygonal structure,
(6) The crease line is provided with a semicircular cut or circular hole for preventing fold line propagation in the vicinity of the upper end,
(7) The cylindrical body main body has an oblong window hole in a part of the central fold line located on the anti-discharge side,
(8) The nozzle pulling guide rod is provided from the upper end to the lower end of the nozzle protection portion, and is formed so as to swell toward the nozzle tip side at a position corresponding to the upper seal portion and the lower seal portion of the film check nozzle. And being formed in an S-shaped waveform so as to be recessed toward the nozzle base end side at a middle position corresponding to the dispensing passage portion of the film-like check nozzle,
(9) having one or more visual through holes in the vicinity of the cutting guide rods of the nozzle protection part and the cylindrical body body;
Is a more preferred embodiment.

The outer paper container of the present invention is a liquid-filled package formed by filling a liquid plastic in a soft plastic packaging bag having a film-like non-return nozzle (a liquid structure filled with an amorphous structure. A cylindrical body body in which the lower part is a polygonal shape in plan view, the body part is elliptical in plan view, and the upper part has a plate shape so as to conform to a three-dimensional shape formed under a standing posture) A nozzle protection portion protruding at a position corresponding to the film-like non-return nozzle on the upper body side edge, and adhering and holding the upper horizontal seal portion of the liquid filling package at the upper portion of the cylindrical body body Thus, a non-self-supporting and amorphous liquid-filled package is stored in a standing position so that it can be made stable and independent.
According to this outer container made of paper, a non-self-supporting and amorphous liquid-filled package can be stably held until the end, which prevents over-the-counter and thus a cap-less nozzle spout It is possible to effectively prevent the liquid package from leaking out.

  In addition, according to the present invention, the non-return function of the liquid-filled package can be effectively exhibited without being obstructed by the outer container, and the excellent elastic restoring force of the cylindrical body body (elliptical part) Deformation and dents due to discharge can be suppressed, and furthermore, the adoption of the lower part of the cylindrical body (polygonal part) improves the self-supporting property. It can be combined with the honeycomb structure and disposed without gaps, has excellent storage properties and display properties on a product shelf, etc., and can also absorb impact during transportation.

  In addition, a self-supporting outer bag that was previously formed of a laminated plastic film can be replaced with a paper container, reducing costs and using recycled paper for recycling and disposal. Easy to process.

  Moreover, in this invention, the rigidity of this paper outer container improves and the stable self-supporting property can be obtained by providing a polygonal baseplate in the position slightly above the lower end or lower end of a cylindrical body main body. In particular, the bottom plate is preferably formed by overlapping a pair of bottom plate pieces projecting from any two sides of the bottom of the cylindrical body body. According to this, the rigidity of the bottom plate is increased. It can be further improved to increase independence.

  The bottom plate is provided with a folding line at a substantially central position along the thickness direction of the liquid-filled package to be accommodated, and the entire cylindrical body can be crushed until it becomes flat by pressurizing the lower part or the trunk. By doing so, even when the liquid package in the liquid filling package is reduced, the outer container made of paper is sequentially deformed according to the shape of the liquid filling packing body, It can be stably held to the end. Further, the liquid package remaining in the crushed and deformed liquid-filled package can be poured out to the end by being pushed out through the paper outer container.

  Further, according to the present invention, since the window hole is provided at the position of the elliptical body portion of the paper outer container, it can be easily lifted through the window hole or stably tilted to be placed in the liquid-filled package. The packaged items can be poured out. Furthermore, since the body part of the liquid-filled package body can be pressed with fingers directly from the window hole, it is possible to finely control the amount of the package to be dispensed.

  In addition, the paper outer container of the present invention can be easily folded according to a crease line provided along a vertical direction in a substantially lower half of a paper sheet, and the bottom portion is polygonal and the body portion is Since it can be formed into an elliptical cylindrical body, it is easy to process, and can be easily discarded after use, and can be manufactured at low cost.

  Further, the paper outer container of the present invention is provided with an oblong window hole on the back surface on the side opposite to the discharge side when the liquid filling package is stored, so that the liquid filling packaging body is provided through the window hole. The remaining amount of the liquid package can be confirmed, and there is an advantage that the back surface portion does not get in the way and is easy to grip when gripping with the fingers across the back surface.

  Furthermore, the nozzle protection part provided in the position corresponding to the film-like non-return nozzle of the liquid-filled package of the paper outer container of the present invention has a cutting guide rod that can be exposed by cutting the nozzle protection part. The upper and lower portions are formed so as to swell toward the nozzle tip side, and are formed in an S-shaped waveform that is recessed toward the nozzle base end side at a substantially central position. Bending is suppressed, and it is possible to prevent the film from being unexpectedly cut off, and to prevent deformation of the film-like check nozzle located inside the film. In addition, the tightening of the film-like check nozzle from the paper outer container is weakened, and the occurrence of dripping can be suppressed, and the bottom of the film-like check nozzle is supported by the paper outer container. Bending and distortion of the non-return nozzle can be suppressed, and as a result, the directionality of the discharge is improved and the aim of the discharge position becomes accurate.

  Further, in the present invention, since the nozzle position of the liquid filling package to be stored through the visual through-hole provided in the vicinity of the cutting guide rod of the nozzle protection part or the cylindrical body main body can be grasped at all times, The liquid-filled package can be stored and held at an accurate position in the paper outer container.

It is a perspective view which shows one use form of the paper outer container for the liquid filling package bodies of this invention. FIG. 2 is an AA enlarged end view of FIG. 1. When the cylindrical lower part of the paper outer container of this invention consists of hexagons, it is a front view which illustrates the state which arranged it in multiple numbers. When the cylindrical lower part of the paper outer container of this invention consists of hexagons, it is a bottom view which illustrates the state which arranged it in multiple numbers. When the cylindrical lower part of the paper outer container of this invention consists of a triangle or a pentagon, it is an approximate line bottom view which illustrates the state which arranged two or more it. It is an expanded view of the outer container made from paper for the liquid filling packaging bodies of this invention. It is a reference perspective view which illustrates the state which crushed the paper outer container for liquid substance filling packaging bodies of the present invention.

  A paper outer container (hereinafter referred to as “outer container” or “tubular body”) for a liquid-filled package according to the present invention is a capless film-like check nozzle (hereinafter referred to as “pouring nozzle”). In a soft packaging bag having a liquid packaging material, the liquid-filled packaging body, which is a non-self-supporting amorphous structure formed by filling a liquid package with a liquid seal, is stored and held in a stable state. In addition, it was developed as an outer container used to assist the dispensing of the package. That is, the present invention is characterized in that a liquid-filled package body, which is an amorphous structure, can be provided with regularity by being accommodated in the outer container.

As shown in the perspective view illustrating the usage pattern of FIG. 1 and the enlarged end view (FIG. 2) at the AA position in FIG. 1, the outer container P of the present invention has a standing shape of the liquid filling package 20 to be stored. A shape conforming to the three-dimensional shape formed below, that is, the lower portion 1a has a polygonal shape in plan view (hexagonal shape in FIG. 1), the body portion 1b has an elliptical shape in plan view, and the upper portion 1c has a plate shape. It is comprised from the cylindrical body main body 1 and the nozzle protection part 6 protrudingly provided in the position corresponding to the extraction | pouring nozzle 3 of the liquid filling packaging body 20 of the upper side edge of the cylindrical body main body 1. FIG.
The shell structure of the body portion 1b refers to a structure in which the side surfaces of a pair of sheet-like members are curved upward and approach each other, and the pair of sheet-like members that are close to each other overlap in the upper portion 1c. A cylindrical body is formed by bonding or pasting the inner surfaces together.

  According to this, since the lower part of the non-self-supporting liquid filling package 20 expanded by the liquid package can be stably held by the polygonal portion of the cylindrical lower part 1a, the liquid filling The fall of the package 20 or the like is suppressed, and leakage of the packaged object from the spout of the spout nozzle 3 made of capless can be effectively suppressed. The lower body 1a of the cylindrical body 1 may be any shape such as a triangle, a pentagon, and an octagon as long as it is a polygon in plan view. In particular, as shown in FIG. In the case of a square shape, in addition to the self-supporting stability, it is excellent in storage and display properties as will be described later.

  Moreover, the cylindrical body trunk | drum 1b is made into the shell structure of a shape different from a lower part, ie, planar view ellipse, and improves the rigidity and impact resistance as an outer container P with the elastic force by the curved-surface structure. At the same time, the elastic restoring force of the outer container P when the body portion 1b is pressed in order to discharge the article to be packaged can be improved, and the effect that it can be suppressed from being dented or deformed can be expected.

  Further, as shown in FIG. 2, the liquid filling package 20 is accommodated in the cylindrical body main body 1, and then the upper side seal portion 20a is overlapped with the pair of sheet-like members on the cylindrical upper portion 1c. By being pinched by the holding part 2, it is stored and held in the outer container P as it is standing. Therefore, the liquid filling package 20 is not affected by the outer container P, and functions such as a check function of the liquid filling package 20 can be exhibited as they are. The upper horizontal seal portion 20a of the liquid-filled package 20 is affixed or adhered to the outer container P by a glue or an adhesive provided on at least one inner surface of the holding portion 2.

  In particular, when the cylindrical body lower portion 1a of the outer container P of the present invention is a hexagonal shape, a plurality can be arranged without gaps as shown in the front view of FIG. 3 and the bottom view of FIG. For this reason, since it is excellent in the storing property and stability at the time of storing in a box or displaying on a product shelf, and further, it is possible to absorb an impact from the outside during transportation or the like by the cylindrical lower body 1a. The effect that the damage of the liquid filling package 20 in P can be suppressed can be expected. In addition, as shown as a schematic diagram in FIG. 5, even when the cylindrical lower portion 1a is formed of (a) a plan view triangle or (b) a plan view quadrangle, a plurality of portions are formed as in the case of a hexagonal shape. Can be arranged without gaps, and can be excellent in storage and display properties.

  Further, as shown in FIG. 3, when the outer container P is displayed on a product shelf or the like, its side surface (usually a printed surface such as a product name) is displayed toward the consumer. , It is easy for consumers to select products, and sales volume can be expected to improve.

  The effects such as the self-supporting property and the impact resistance due to the polygonal shape of the cylindrical lower part 1a are as follows. The bottom end bottom or the bottom raised bottom (preferably 1 mm or more above the lower end, more preferably 1 to 5 mm above the lower end. This can be improved by providing a bottom plate 4 having a polygonal shape (hexagonal in FIG. 4) as shown in FIG. In particular, when the bottom plate 4 is provided at a position higher than the lower end surface of the cylindrical body main body 1, it is possible to prevent the lower corners of the liquid filling package 20 to be stored from protruding from the gap of the bottom plate 4. At the same time, there is no fear that the bottom plate 4 protrudes downward by the bottom of the expanded liquid-filled package 20 and obstructs the self-supporting property.

  The bottom plate 4 is preferably formed by overlapping two bottom plate pieces. According to this, not only the bottom plate 4 but also the outer container P is improved in strength and excellent in impact resistance. it can.

The outer container P according to the present invention is simply formed by folding the outer container P according to a crease line provided in the longitudinal direction in a substantially lower half of one paper sheet 5 as shown in the development view of FIG. The assembly method will be described below as an embodiment in which the lower part 1a of the cylindrical body 1 is hexagonal in plan view.
As an assembling method, first, a pair of trunk sheets 5 a and 5 b formed so as to be foldable along a fold line 7 in the central portion in the lateral direction of the paper sheet 5 are arranged along the fold line 7. And then folded along two lower folding lines 8 provided on the respective trunk sheets 5a and 5b to form a hexagon (honeycomb structure), and the side end portions 10a of the trunk sheets 5a and 5b. 10b are bonded together to assemble a hexagonal (honeycomb structure) portion of the cylindrical lower portion 1a.
Next, a pair of hexagonal bottom plate pieces 11a and 11b respectively protruding from the lower end of the cylindrical body lower portion 1a, for example, from the side portions along the long side of the body portion of the liquid filling package 2 to be stored are mutually connected. The bottom plate 4 is formed by bonding and overlapping, and the cylindrical body 1 is assembled.
Finally, the liquid-filled packaging body 20 is accommodated in the cylindrical body main body 1, and the inner surfaces of the cylindrical body upper portion 1c are bonded together in a state where the upper lateral seal portion 20a of the liquid-filled packaging body 20 is sandwiched. The outer container P can be assembled under a state in which the holding part 2 is formed by sticking and the liquid filling package 20 is fixed thereby.

  When the bottom plate 4 is provided at a position higher than the lower end surface of the cylindrical body main body 1, a notch 12 is made at the connecting position between the bottom plate pieces 11 a and 11 b and the cylindrical body main body 1 as shown in FIG. 6. Thus, the installation position of the bottom plate 4 can be determined by changing the length of the notch 12.

  In addition, any one of the bottom plate pieces 11a and 11b forming the bottom plate 4, preferably, the bottom plate pieces 11a and 11b on the side that becomes the outer surface (bottom surface) when the bottom plate pieces 11a and 11b are overlapped, It is preferable that a folding line 13 is provided at a substantially central position parallel to the long side of the trunk portion of the filling package 20 so that the bottom plate can be folded in a mountain. According to this, the cylindrical body 1b is pressed against opposing polygonal sides (a pair of body sheets 5a and 5b in FIG. 6) along the fold line 13, and shown in FIG. 7 as an embodiment. Thus, the amount of liquid to be packaged in the liquid-filled package 20 is subtly controlled by controlling the crushing force on the front and back surfaces of the outer container P. In the case where adjustment is possible and the liquid package in the liquid filling package 20 is reduced, the outer container P is crushed along the folding line 13 in accordance with the shape of the packaging 20. Since it can be deformed, the liquid-filled package 20 can be stably held up to the end.

  In the outer container P of the present invention, the cylindrical body lower portion 1a has a polygonal shape in plan view, and the cylindrical body body portion 1b has a different shape in an elliptical shape in plan view, and it is necessary to maintain this shape to the end. Therefore, as shown in FIG. 1, it is preferable to provide a semicircular cut or circular hole 17 for preventing folding line propagation at the upper end of the lower folding line 8 for forming the polygonal shape of the lower part 1a. 1, the semicircular cut 17 effectively prevents the lower folding line 8 from extending further upward, and the cylindrical body lower portion 1a of the outer container P can be maintained in a polygonal shape.

  Moreover, in the liquid filling package according to the present invention, since the film-like dispensing nozzle having a check function is provided, the bag body is crushed and deformed according to the amount of the package to be packed by the outer check function, This acts as a damming action, and the flow of the article to be packaged is stagnated, and finally the flow path is blocked. Even in this case, according to the outer container of the present invention, the packaged material remaining in the bag can be pushed out by the crushing force (pressing force) on the outer container, and the entire amount can be poured out to the end. At the same time, the outer container can be made to stand on its own due to the high stability of the polygonal lower part.

  By the way, the liquid-filled package according to the present invention is preferably a bag body, preferably on the upper part of one of the side edges of a packaging bag body made of a soft laminated film of two or three layers. A film-like pouring nozzle having a non-return function formed by superposing two laminated plastic films (a pair of front and back) that are softer, thinner and have a higher flatness (as disclosed in JP-A-2005-59958) The liquid pouring nozzle) is heat-sealed and attached in a projecting state, or a flexible packaging bag formed integrally with the packaging bag body is filled with liquid packaging material in the liquid by sealing with the outside air, etc. It is filled so as not to penetrate.

  The pouring nozzle is, for example, in a state where the sealant layer that is the outermost layer of the laminated plastic film constituting the nozzle faces the inner surface (sealant layer) of the upper side portion of the packaging bag body. The sealant layers at the base end are fused and joined so that the dispensing passage provided in the nozzle communicates with the inside of the bag body. For example, this nozzle is composed of a thermoplastic, uniaxially or biaxially stretched base film layer, and a laminated plastic film formed by laminating a sealant layer on both the inner and outer sides sandwiching the thermoplastic film. , Or a laminated film in which a single laminated plastic film is folded back in half width to make a pair of front and back, the sealant layers facing each other are fused together in the peripheral part excluding the base end part, As a whole, it is formed so as to form a pour-out passage which is substantially wedge-shaped and whose center is not fused.

  And although a packaging bag main body changes with the weight of a to-be-packaged object, generally this pour-out nozzle 1 is the load of a to-be-packaged object, whereas NY15 / PE60 with a thick two-layer laminated film is used. For example, it is preferable to use a thin three-layer laminated film made of a combination of PE20 / NY15 / PE20. The thinner the film, the better the thin film, and the better the check function. And the non-return effect with a higher flatness (flatness) is obtained for a pair of laminated front and back laminated films.

  Such a pouring nozzle has a heat of 5 to 80 μm, for example, polyethylene layer, polypropylene layer, ethylene vinyl alcohol (EVA), ionomer, EVOH, etc., between two overlapping laminated films (facing the front and back). A plastic resin that can be heat-sealed is used as a heat-seal material on the inner surface of the packaging bag body, for example, a sealant material represented by polyethylene or polypropylene.

As the base film (supporting base material) of this dispensing nozzle, biaxially stretched films and uniaxially stretched films generally used for liquid packaging films such as nylon, polyester, polypropylene, polyethylene terephthalate, EVOH, etc. are used. It is preferable to use a film in which a gas barrier layer comprising a SiO ₂ vapor deposition layer, a vinylidene chloride coating layer, an aluminum oxide coating layer, an Al vapor deposition layer, or a sputtering layer thereof is formed on one surface of the film. As a result, the inner surfaces of the pouring nozzles wetted with the article to be packaged adhere well to each other, water vapor impermeability, gas barrier properties, etc. are imparted, and an effective check function is exhibited over a long period of time. It is possible to effectively prevent the outside air from entering. In order to maintain the flexibility of the film valve, the thickness of the base film is preferably, for example, 5 μm or more and 30 μm or less, and the thickness of the gas barrier layer is preferably about 0.5 μm to 20 μm.

  The pouring nozzle made of a laminated plastic film having a structure of at least three layers (sealant layer [surface material] -base film layer-sealant layer [backing material]) manufactured as described above is the outer surface of the base end portion thereof. The sealant on the inner surface of the opening provided on one side of the packaging bag body made of a soft laminated plastic film (mainly two layers) without causing the sealant layers on the inner surface side to be fused together It is fused by heat sealing to a layer (sealant layer made of the same kind of film) and attached in a state protruding from the packaging bag body. Thereby, a flexible packaging bag provided with the extraction | pouring nozzle protruded outward from the upper part of the side part, the top part, etc. with respect to the packaging bag main body is obtained.

  By the way, the non-return function of such a pouring nozzle means that the pouring passage formed between the two films that overlap each other by overlapping two flat plastic films that are flat and in close contact with each other, This is a function of firmly preventing mutual intrusion of outside air into the packaging bag main body by constantly interposing liquid substances by capillary action. The non-returning action of the pouring nozzle is such that the body portion of the packaging bag is tilted so that the opening (pouring spout) at the tip of the pouring nozzle is oriented downward, and the liquid package is poured out, and then the packaging By returning the bag from the standing position, the discharge nozzle is released from the action of the water head pressure and returned to the original shape at the time of manufacture. In addition, a part of the liquid package in the discharge nozzle returns to the bag body. At this time, the inner surfaces (pouring passages) of the pair of front and back films wetted by the liquid package by the reduced pressure are automatically performed by adsorbing each other (self-sealing). Such close contact is caused by the bag body portion that has been shrunk or crushed and deformed as the liquid article to be packaged from the packaging bag is poured, and the inside tends to depressurize based on its inherent elastic restoring force. When working with, it becomes more certain.

Therefore, since the film-like pouring nozzle is required to be formed by two soft plastic films having low stiffness in order to effectively exert its check function, the pouring nozzle remains in a state as it is. Then, when stored in a box or transported, the nozzle may be bent and deformed during handling, and the check function may not be exhibited, or the opening provided at the tip of the nozzle may be unsealed.
Therefore, in the outer container of the present invention, as shown in FIG. 1, the nozzle protection part 6 protrudes at a position corresponding to the dispensing nozzle 3 of the liquid filling package 20. This nozzle protection part 6 consists of a pair of protection pieces which pinch | interpose a film-like extraction nozzle, and has a role which protects the extraction nozzle 3 from the impact from the outside, etc. until the start of use. In particular, the pouring nozzle 3 is formed by superposing thin plastic films. When these films are brought into close contact with each other, a check function is produced. Since the non-returning action is inhibited, the role of the nozzle protection unit 6 is very important.

  The nozzle protection part 6 is provided with a cutting guide rod 14 at the boundary with the cylindrical body body 1, and the tearing nozzle 3 is opened by tearing and opening the cutting guide rod 14 with fingers. Can be exposed. As shown in FIG. 1, the cutting guide rod 14 is provided from the upper end to the lower end of the nozzle protection portion 6, and at the position corresponding to the upper seal portion 3 a and the lower seal portion 3 b of the dispensing nozzle 3, It is preferable to form an S-shaped waveform so as to be recessed toward the nozzle base end side at a middle position corresponding to the portion of the dispensing passage 3 c of the dispensing nozzle 3.

  According to this, it is possible to effectively prevent the nozzle protection part 6 from being easily bent along the guide rod 14 for cutting due to the swelling of the upper and lower portions of the guide rod 14 for cutting to the tip side of the nozzle, and at the same time accommodated in the inside. Bending of the pouring nozzle 3 can be prevented, and the dent in the middle position of the cutting guide rod 14 can be prevented from being exposed from the outer container 1 to the pouring passage 3c portion of the pouring nozzle 3 exposed. The tightening is weakened, and an effect that dripping from the opening (opening) of the dispensing nozzle 3 can be expected can be expected.

In addition, when the outer container P of the present invention is configured by a paper sheet having a high stiffness, the outer container P can be easily cut and removed simply by folding the nozzle protection part 6 along the cutting guide rod 14. The paper sheet 5 is preferably selected according to the capacity of the liquid-filled package 20 to be stored. For example, when the capacity of the liquid-filled package 20 is about 200 ml, the thickness is 250 to 350 g / m ² . It is preferable to use paperboard.

  Further, the packaged product in the liquid filling package 20 is arranged such that the opening (pour spout) of the pouring nozzle 3 faces downward through the outer container P over the entire liquid filling packaging 20. The required pouring can be performed by tilting, and further by pressurizing the side surface of the body portion of the package 20 through the outer container P. For controlling the pouring amount, the tilt angle and the applied pressure can be controlled. Subtle adjustment is required.

  Therefore, in the outer container P of the present invention, as illustrated in FIG. 1, it is preferable to provide the window hole 15 in the cylindrical body body portion 1 b on the front and rear surfaces. The liquid-filled packaging body 2 can be stably tilted together, and the body of the liquid-filled packaging body 2 can be directly pressed with the fingers through the window hole 15 to dispense the packaged material. The effect that the amount of subtle control can be expected. In addition, the remaining amount of the packaged items in the bag can be confirmed by the window hole 15.

  Furthermore, in the liquid filling package 20 according to the present invention, the self-sealing check function of the pouring nozzle 3 can suppress the entry of outside air into the bag, so the cap ( There is no need to use a lid cap), but on the other hand, if the body of the liquid-filled package 20 is accidentally pressurized during carrying, the packaged material in the bag is poured out. There was a risk of accidental ejection from the opening of the nozzle 3. Also in this regard, according to the outer container P of the present invention illustrated in FIG. 1, the liquid-filled package 20 is carried with the fingers placed on the window holes 15 provided on the front and back surfaces of the outer container P, respectively. Therefore, it is not necessary to directly grip the front and back surfaces of the outer container P, that is, the body portion of the liquid-filled package body 20, and the packaged material can be prevented from being unexpectedly discharged.

  Further, in the outer container P of the present invention, it is preferable to provide an oblong window hole 16 on the back surface portion opposite to the nozzle protection portion 6 as illustrated in FIG. The elastic restoring force of the outer container P is improved by the window hole 16, and the outer container P is deformed or dented when the cylindrical body body portion 1b is pressed in order to discharge the package contents in the bag. This can be suppressed, and also when the front and back surfaces of the outer container P are gripped, there is an effect that the back surface portion does not hit the fingers and is easy to grip. Further, similarly to the window hole 15 provided in the cylindrical body body 1b, there is also a function that the remaining amount of the packaged object in the liquid filling package 20 can be confirmed.

  Furthermore, in the outer container of the present invention, as illustrated in FIG. 1, it is preferable that one or more visual through holes 18 are provided in the vicinity of the cutting guide rod 14 of the tubular body 1 and the nozzle protection part 6. According to this, since the position of the nozzle 3 can be confirmed through the visual through hole 18 when the liquid-filled package 20 is stored in the outer container P, for example, the liquid material is contained in the outer container P. It becomes a standard of the storage position when storing the filling package 20, and the liquid filling package 20 can be stored and held at a fixed position at all times. Further, the remaining amount of the liquid package can also be confirmed through the visual through hole 18.

  The paper outer container for the liquid-filled package of the present invention is not limited to the illustrated example, and the configuration thereof can be partially changed without departing from the spirit of the present invention, soy sauce and sauce In addition to seasoning liquids such as dressings and various beverages, it can be used as an outer container of a liquid filling package in which viscous materials such as mayonnaise and cosmetics are sealed and filled in the liquid.

P Paper outer container 1 Tubular body 1a Lower part 1b Body part 1c Upper part 2 Holding part 3 Outlet nozzle 3a Upper seal part 3b Lower seal part 3c Outlet passage 4 Bottom plate 5 Paper sheet 5a, 5b Body part sheet 6 Nozzle Protective part 7 Folding line 8 Lower folding line 10a, 10b Free end part 11a, 11b Bottom plate piece 12 Notch 13 Folding line 14 Cutting guide rod 15, 16 Window hole 17 Folding line propagation prevention notch 18 Visual through-hole 20 Liquid filling packaging Body 20a Upper seal part

That is, the present invention relates to a paper outer container used for storing a non-self-supporting and amorphous liquid-filled packaging body in which a liquid package is filled in a soft packaging bag having a film-like check nozzle. In this outer container, the lower part is polygonal in plan view, the body part is elliptical in plan view, and the upper part is plate-like so as to conform to the three-dimensional shape formed when the liquid-filled packaging body is standing upright. And a pair of protective pieces sandwiching the nozzles at positions corresponding to the film-like check nozzles on the upper side edge of the cylindrical body main body, and the cylinders of these protective pieces and the nozzle protection unit in the boundary portion between the shaped body main body formed by providing a cut for induction flaw for exposure the nozzle consists, and the cylindrical body the body, the upper side of the front Symbol liquid product filling packaging body on top a sealing portion sandwiched, a holding portion for holding the adhesive, even lower bottom surface Alternatively, the bottom plate has a polygonal bottom plate at the bottom and the bottom plate is provided at a substantially central position in the thickness direction of the liquid filling package when the lower part of the polygon or the elliptical body is pressurized. along the mountain fold can fold line, paper out containers for liquid product filling packaging body, characterized in der Rukoto what can be crushed to a flattened while self holding the liquid product filling packaging It is.

Moreover, in the paper outer container for the liquid filling package of the present invention,
(1) The cylindrical body body has a hexagonal shape in a lower part in a plan view.
(2) The cylindrical body main body has a window hole in the oval trunk,
(3) The cylindrical body is bent according to a crease line provided in the longitudinal direction in a substantially lower half of one paper sheet, and the side ends are bonded to each other so that the bottom is polygonal. A cylindrical body having a shape is formed, and polygonal bottom plate pieces are continuously provided from any two sides of the bottom of the cylindrical body, and these are overlapped with each other to form a cylindrical body. Assembling so that the lower part is a polygonal structure,
(4) The crease line is provided with a semicircular cut or circular hole for preventing fold line propagation in the vicinity of the upper end;
(5) The cylindrical body main body has an oblong window hole in a part of the central fold line located on the opposite discharge side;
(6) having one or more visual through holes in the vicinity of the cutting guide rods of the nozzle protection part and the cylindrical body body;
Is a more preferred embodiment.

The outer paper container of the present invention is a liquid-filled package formed by filling a liquid plastic in a soft plastic packaging bag having a film-like non-return nozzle (a liquid structure filled with an amorphous structure. A cylindrical body body in which the lower part is a polygonal shape in plan view, the body part is elliptical in plan view, and the upper part has a plate shape so as to conform to a three-dimensional shape formed under a standing posture) A nozzle protection portion protruding at a position corresponding to the film-like non-return nozzle on the upper body side edge, and adhering and holding the upper horizontal seal portion of the liquid filling package at the upper portion of the cylindrical body body Thus, a non-self-supporting and amorphous liquid-filled package is stored in a standing position so that it can be made stable and independent.
According to this outer container made of paper, a non-self-supporting and amorphous liquid-filled packaging body can be stably held independently until the end, so that it can be prevented from overturning, and in turn, a cap-less nozzle spout It is possible to effectively prevent the liquid package from leaking out.

In addition, any one of the bottom plate pieces 11a and 11b forming the bottom plate 4, preferably, the bottom plate pieces 11a and 11b on the side that becomes the outer surface (bottom surface) when the bottom plate pieces 11a and 11b are overlapped, the fold lines 13 provided substantially at the center position parallel to the barrel long side of the packing wrapper 20, the bottom plate to be mountain fold. According to this, the cylindrical body 1b is pressed against opposing polygonal sides (a pair of body sheets 5a and 5b in FIG. 6) along the fold line 13, and shown in FIG. 7 as an embodiment. Thus, the amount of liquid to be packaged in the liquid-filled package 20 is subtly controlled by controlling the crushing force on the front and back surfaces of the outer container P. In the case where adjustment is possible and the liquid package in the liquid filling package 20 is reduced, the outer container P is crushed along the folding line 13 in accordance with the shape of the packaging 20. Since it can change easily, the liquid filling packaging body 20 can be stably kept independent until the end.

As the base film (supporting base material) of this dispensing nozzle, biaxially stretched films and uniaxially stretched films generally used for liquid packaging films such as nylon, polyester, polypropylene, polyethylene terephthalate, EVOH, etc. are used. It is preferable to use a film in which a gas barrier layer comprising a SiO ₂ vapor deposition layer, a vinylidene chloride coating layer, an aluminum oxide coating layer, an Al vapor deposition layer, or a sputtering layer thereof is formed on one surface of the film. As a result, the inner surface of the pouring nozzle wetted with the article to be packaged adheres well to each other, is provided with water vapor impermeability, gas barrier properties, etc., and exhibits an effective check function over a long period of time. It is possible to effectively prevent outside air from entering. The thickness of the base film is preferably, for example, 5 μm or more and 30 μm or less in order to maintain the flexibility of the dispensing nozzle , and the thickness of the gas barrier layer is preferably about 0.5 μm to 20 μm.

Claims (10)

A paper outer container used to store a non-self-standing and amorphous liquid-filled packaging body in which a liquid package is filled in a soft packaging bag having a film check nozzle,
The outer container has a cylindrical shape in which the lower part is polygonal in plan view, the body part is elliptical in plan view, and the upper part is plate-like so as to conform to the three-dimensional shape formed when the liquid-filled package body is standing. Body body,
A pair of protective pieces for sandwiching the nozzle is provided at a position corresponding to the film-like check nozzle on the upper side edge of the cylindrical body, and the nozzle is provided at a boundary portion between the protective piece and the cylindrical body body. A nozzle protector provided with a guide rod for cutting for exposure;
And a holding part for holding and adhering the upper lateral seal part of the liquid filling packaged body is provided at the upper part of the cylindrical body main body. Paper outer container. 2. The outer container made of paper for a liquid-filled package according to claim 1, wherein the cylindrical body has a hexagonal lower portion in plan view. The cylindrical body main body has a polygonal bottom plate on the bottom bottom surface or bottom raised bottom surface, and a folding line is provided at a substantially central position along the thickness direction of the liquid filling package body on the bottom plate. 3. A paper outer container for a liquid-filled package according to claim 1 or 2. The cylindrical body body is capable of being crushed until it becomes flat when the polygonal lower part or the elliptical body part is pressed through the fold line. 4. A paper outer container for the liquid filling package according to 3. The said cylindrical body main body has a window hole in an elliptical trunk | drum, The paper outer container for liquid filling package bodies of any one of Claims 1-4 characterized by the above-mentioned. The cylindrical body body is bent in accordance with a fold line provided in the longitudinal direction in a substantially lower half of a sheet of paper, and the side ends thereof are bonded to each other so that the bottom part is a polygonal cylinder. Shaped the body,
And, from any two sides of the cylindrical body bottom part, polygonal bottom plate pieces are connected in series, and these are overlapped with each other so that the lower part of the cylindrical body becomes a polygonal structure. A paper outer container for a liquid-filled package according to any one of claims 1 to 5, wherein The paper outer container for a liquid-filled package according to claim 6, wherein the crease line is provided with a semicircular cut or circular hole for preventing fold line propagation in the vicinity of the upper end. The liquid-filled packaging according to any one of claims 1 to 7, wherein the cylindrical body main body has an oblong window hole in a part of a central fold line located on the side opposite to the discharge side. Paper outer container for the body. The nozzle pulling guide rod is provided from the upper end to the lower end of the nozzle protection portion, and is formed so as to swell toward the nozzle tip side at a position corresponding to the upper seal portion and the lower seal portion of the film check nozzle. In addition, at an intermediate position corresponding to the dispensing passage portion of the film-like check nozzle, it is formed in an S-shaped waveform so as to be recessed toward the nozzle base end side. 9. A paper outer container for a liquid-filled package according to any one of 8 above. The liquid filling package according to any one of claims 1 to 9, further comprising one or more visual through-holes in the vicinity of the cutting guide rods of the nozzle protection part and the cylindrical body main body. Paper outer container.

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