JP2011251735A - Spout with anti-clogging function - Google Patents

Spout with anti-clogging function Download PDF

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Publication number
JP2011251735A
JP2011251735A JP2010126579A JP2010126579A JP2011251735A JP 2011251735 A JP2011251735 A JP 2011251735A JP 2010126579 A JP2010126579 A JP 2010126579A JP 2010126579 A JP2010126579 A JP 2010126579A JP 2011251735 A JP2011251735 A JP 2011251735A
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Japan
Prior art keywords
spout
bag
package
inner surface
lower
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Pending
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JP2010126579A
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Japanese (ja)
Inventor
Takeshi Aoki
Naoki Kotani
Manabu Sugawara
直己 小谷
学 菅原
剛 青木
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Toppan Printing Co Ltd
凸版印刷株式会社
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Priority to JP2010126579A priority Critical patent/JP2011251735A/en
Publication of JP2011251735A publication Critical patent/JP2011251735A/en
Application status is Pending legal-status Critical

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Abstract

An object of the present invention is to provide a flexible film bag-like package for packaging liquid contents, to prevent clogging of spout opening portions and to quickly remove the contents in the bag-like package from the spout. It is to provide a spout that can be poured into and easy to install.
SOLUTION: A spout that is heat-sealed and attached to the inner surface of an outer peripheral end portion of a hole-forming portion formed in a bag-like package made of a flexible film packaging material. A spout with an occlusion prevention function comprising: a hollow gap-forming component having a hole on a side surface.
[Selection] Figure 1

Description

  The present invention relates to a spout with an occlusion prevention function which is attached to a bag-like package made of a flexible film for packaging liquid contents. In particular, the present invention relates to a spout with an occlusion prevention function used for an inner bag of a bag-in-box that is a large-sized container for business use.

  As a bag-like package for packaging liquid contents, as shown in the schematic cross-sectional views of FIGS. 4 and 5, the contents filled and sealed in a bag-like package (such as a pouch) made of a flexible film packaging material are used. A cylindrical spout (1) for sealing and pouring is a hole in which the upper surface of the spout body lower flange portion (4) is formed in the bag film (8) of the bag-like package of the flexible film packaging material. Generally, what is adhered and attached to the adhesive portion (5) on the surface of the periphery of the installation portion by heat sealing is often used.

  In such a bag-like package, a cover part (not shown) with a pull-off-type pull ring is removed from the spout (1) by sealing the cover part of the upper pouring opening (6) or pull-off type pull ring. When the container is opened and the liquid content liquid (D) in the pouch is discharged from the upper outlet opening (6) of the spout (1), the inside of the pouch, which is a sealed space, is decompressed, and the lower outlet opening of the spout The portion (6 ′) and the inner surface of the bag film (8) opposite to the portion (6 ′) are brought into close contact with each other by the force of the reduced pressure, and the inner surface of the bag film (8) is the lower dispensing opening (6 The lower part of ') may be blocked, and as a result, it may be difficult to continue the dispensing of the content liquid (D) remaining in the bag-shaped package from the spout (1).

In FIG. 5, the schematic diagram at the time of the pouring start in the typical case of such a conventional spout was shown. The figure (a) shows the figure seen from the upper surface, and the figure (b) has shown the cross-sectional schematic in the AA 'line. At the start of dispensing, the upper and lower dispensing openings (6), (6 ′) of the spout (1) are open, and the content liquid (D) can freely pass through the spout (1). I can do it.
In the schematic cross-sectional view, the direction of the force applied to the bag film (8) during pouring is indicated by an upward arrow.
FIG. 4 shows that the typical spout of such a conventional spout has progressed to some extent, and the inner surface of the bag film (8) is in close contact with the lower part of the lower spout opening (6 ′) of the spout (1). Then, a schematic diagram when the flow path of the content liquid is closed is shown.

  When the clogging phenomenon resulting from the adhesion of the bag film to the spout in the bag-shaped package as described above occurs, the content liquid is not completely poured out during the dispensing operation and remains in the container. As countermeasures for preventing this, there are methods proposed in Patent Documents 1 and 2, for example.

  In the methods according to these proposals, for example, a lower note is placed on the lower surface of the flange portion of the spout for attaching the spout body to the bag-shaped package surface, that is, on the lower surface of the flange portion of the spout that is in contact with the opposite inner surface of the film packaging material of the bag-shaped package. A plurality of grooves communicating with the inside of the opening are provided radially.

  As a result, even if the lower discharge opening of the spout and the lower surface of the lower flange portion and the inner surface of the opposing film packaging material are in contact with each other due to the reduced pressure in the pouch when the content liquid is poured out, The groove portion is not completely closed, and a plurality of flow paths are formed by the groove portion on the lower surface of the flange portion and the film packaging material in close contact with the lower surface of the flange portion. As a result, the content liquid in the bag-shaped package flows into the lower pouring opening of the spout through the channel of the groove and is discharged from the spout.

  However, when the filling amount of the liquid content in the bag-shaped package is large, the load applied to the bag-shaped package at the time of pressure reduction in the pouch due to the discharge of the content from the spout becomes great. In particular, in the case of a large bag-like package used in a bag-in-box, the weight of the packed and packed contents is large, so the load due to the reduced pressure applied to the package due to the contents being poured out from the spout is also great. become.

  Therefore, when the liquid contents in the pouch are discharged from the spout, the lower part of the spout lower opening and the lower surface of the flange part, and the inner surface of the film packaging material facing it, are affected by the amount of pressure reduction and the weight of the contents. The flow path formed by the groove portion on the lower surface of the flange portion and the film wrapping material in close contact with the lower surface of the flange portion is completely or partially blocked, resulting in content from the spout. It often happens that it becomes difficult to continue to dispense items.

In order to solve this problem, the present inventors have proposed a spout in which radial holes communicating from the outer peripheral end surface of the lower flange portion to the lower pouring opening of the spout are provided instead of the groove portion on the lower surface of the flange portion.
That is, in the spout attached to the outer peripheral end portion of the perforated portion perforated in the bag-like package made of the flexible film packaging material, the lower flange portion is provided on the outer periphery of the lower opening portion of the cylindrical body, and the structure inside the lower flange portion Provided with a perforated channel that communicates from the inner peripheral surface of the lower opening formed in the hole to the outer peripheral end surface of the lower flange portion, and the upper surface of the lower flange portion is the outer peripheral end of the hole provided in the bag-like package. A spout attached to the inner surface by heat sealing.
The tunnel-shaped perforated flow path includes one to four or a plurality of radial holes from the inner peripheral surface of the lower opening to the outer peripheral end surface of the lower flange.

As a result, unlike the radial groove formed on the surface, even in the case of a large bag-like package, the flow path formed in the flange structure is held without being blocked, and as a result, the bag Regardless of the size of the package, the liquid can be smoothly poured out from the spout.
However, since the above-mentioned perforated channel is provided in a tunnel shape within the range of the thickness of the spout lower flange portion, it is necessary to increase the cross-sectional area of this tunnel in order to smoothly and quickly pour the content liquid. For this purpose, increasing the thickness of the flange is inevitable.

  When the thickness of the flange portion is increased, the lower part of the spout protrudes greatly into the bag-shaped package when the spout and the inner surface of the outer peripheral end of the hole provided in the bag-shaped package are bonded together. A new problem has emerged that the installation is not easy.

JP-A-2005-231686 Japanese National Patent Publication No. 2-500831

  An object of the present invention is to quickly close out the contents in the bag-shaped package from the spout by preventing the opening of the spout from being blocked in the bag-shaped package made of a flexible film for packaging liquid contents. It is to provide a spout that can be easily installed.

  The invention according to claim 1 of the present invention is a spout that is heat-sealed and attached to the inner surface of the outer peripheral end portion of a hole-forming portion that is formed in a bag-like package made of a flexible film packaging material. And a spout with an occlusion prevention function characterized in that the spout has a gap forming part that slides on the inner surface of the cylindrical body.

  The invention according to claim 2 of the present invention is the spout with an anti-blocking function according to claim 1, wherein the gap forming component that slides on the inner surface of the cylindrical body has a cylindrical shape having holes on the side surfaces.

  The invention according to claim 3 of the present invention is characterized in that the air gap forming part that slides on the inner surface of the cylindrical body has a cylindrical shape with a grooved flange at the bottom. A spout with function.

  According to the spout with a blocking function according to claim 1 of the present invention, in the spout that is heat-sealed and attached to the inner surface of the outer peripheral end portion of the perforated portion that is perforated in the bag-like package made of the flexible film packaging material, After the gap forming part is arranged at a position that does not protrude from the lower surface of the cylinder by using the cylinder constituting the main body and the gap forming part that slides on the inner surface of the cylinder, for example, using a filling nozzle when filling the content liquid It becomes possible to form a gap between the bottom pouring opening of the cylindrical body constituting the spout body and the bag film by a simple method of extruding the gap forming part downward (inside the bag-like package). . As a result, the content liquid inside the bag-like package passes through this gap and the cylindrical body is not blocked by the opposing bag film even when the content liquid is being dispensed. The pouring can be continued from the upper pouring opening.

After filling the content liquid, the gap forming part is placed in a position that does not protrude from the bottom surface of the cylinder inside the cylinder, which is the spout body. By forming the gap from the above, it is possible to prevent clogging without requiring a special device or process. Further, according to this method, it is not necessary to mold the lower part of the spout body into a complicated shape in advance.
The space between the gaps is not limited by the thickness of the flange, and can be set as needed. Therefore, even if the size of the bag-like package, the amount of liquid, and the fluidity are different, the contents can be easily The blockage can be prevented so that the liquid can be continuously poured out.

  According to the spout with the blocking prevention function according to claim 2 of the present invention, the gap forming component that slides on the inner surface of the cylindrical body has a cylindrical shape having a hole on the side surface, thereby ensuring the outflow of the content liquid from the gap. A flow path can be formed, and the speed of extraction can be further accelerated.

  According to the spout with the blocking prevention function according to claim 3 of the present invention, the gap forming part that slides on the inner surface of the cylindrical body is a cylindrical shape having a grooved groove at the bottom, so that the content liquid is poured out. The internal pressure drop that occurs inside the bag-shaped package is mitigated by the groove in the communication state, and as a result, the bag film and the spout lower spout are prevented from sticking and the groove is blocked and blocked.

As described above, by using the spout with the blocking function of the present invention, particularly in the case of a large bag-shaped package, the filling amount of the liquid content in the bag-shaped package is large, and the content liquid from the spout is poured into the package. Even if the load due to the amount of reduced pressure and the weight of the contents increases, the gap is not retained and blocked, and as a result, the contents can be smoothly and quickly removed from the spout regardless of the size of the bag-like package. Packages with spouts that can be dispensed can be easily manufactured.

The schematic diagram when the pouring of an example of the spout with the blocking prevention function of the present invention has progressed to some extent. (A) The figure seen from the upper surface, (b) The cross-sectional schematic of A-A 'line. The schematic diagram when the pouring progresses to some extent in the case of the spout with a blocking prevention function (with grooves) of the present invention. (A) The figure seen from the upper surface, (b) The cross-sectional schematic of A-A 'line. Example of schematic cross section showing structure of spout with blocking function of the present invention The schematic diagram when the extraction in the case of the conventional typical spout progressed to some extent. (A) The figure seen from the upper surface, (b) The cross-sectional schematic of A-A 'line. Schematic diagram at the start of pouring in the case of a typical representative spout in the past (a) a view seen from the top, (b) a schematic cross-sectional view along line A-A ′.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 3 is a schematic cross-sectional view showing the structure of two examples of spouts with blocking function according to the present invention. The upper diagram (1) shows a relatively simple configuration example, and the lower diagram (2) shows a gap forming component. The structural example in case the radial groove | channel is provided in the lower flange part is shown.

As shown in FIG. 3, the spout with a blocking prevention function of the present invention is heat-sealed on the inner surface of the outer peripheral end portion of the perforated portion formed in the bag film (8) of the bag-like package made of the flexible film packaging material. In the spout attached, the spout with an anti-blocking function is composed of an extraction cylinder constituting the spout body (2) and an air gap forming part (3) that slides on the inner surface of the extraction cylinder.
The upper part (1) of FIG. 3 is a spout with an occlusion prevention function in which the gap forming component (3) that slides on the inner surface of the dispensing cylinder has a cylindrical shape with a hole (10) on the side surface.

Here, the state before filling the bag-shaped package with the content liquid, that is, the state where the gap forming part (3) is inside the dispensing cylinder constituting the spout body (2) is indicated by a solid line, The position of the gap forming component in a state where the gap forming component (3) is pushed downward (inside the bag-like package) by a filling nozzle (not shown) is indicated by a dotted line.
In addition, a cover body (not shown) such as a screwing method, a concave-convex fitting method, or a half-cut / pull-off method with a pull ring is usually applied to the upper spout opening (6) side of the spout, The content liquid is hermetically packaged in a bag-like package.

  The cylindrical spout main body (2) of the spout with a blocking prevention function of the present invention shown here has an inner surface in a shape in which the outer peripheral side surface of the gap forming component (3) is slid. Furthermore, the lower part (4) of the spout main body extended in the outer peripheral direction was provided in the lower part, and the inner surface of the outer peripheral end part of the holed part of a bag film (8) is in an adhesive part (5) on this flange upper surface. It is heat sealed.

The air gap forming component (3) is a cylindrical component whose outer peripheral surface slides on the inner surface of the spout body (2), and holes (not shown) through which the liquid content can pass are provided on the upper and lower surfaces. Further, a hole (10) through which a solution that does not exist when the content liquid is poured out is also provided on the side surface.
The gap forming part (3) is pushed downward by a gap interval (d1) by a filling nozzle (not shown) when filling the content liquid to the position indicated by the dotted line. The content liquid can also flow out from the hole (10) toward the spout upper dispensing opening (6).

The lower part (2) of FIG. 3 is a spout with an occlusion prevention function in which a gap forming component that slides on the inner surface of the cylindrical body has a cylindrical shape with a grooved flange at the lower part.
Here, the state before filling the bag-shaped package with the content liquid, that is, the lower flange portion (7) of the gap forming component (3) and the lower flange portion (4) of the dispensing cylinder constituting the spout body (2) The contact state is shown by a solid line, and the state after filling, that is, the gap forming part (3) is pushed downward (inside the bag-like package) by a filling nozzle (not shown). The position of is indicated by a dotted line.
In addition, a cover body (not shown) such as a screwing method, a concave-convex fitting method, or a half-cut / pull-off method with a pull ring is usually applied to the upper spout opening (6) side of the spout, As described above, the content liquid is hermetically packaged in a bag-shaped package.

  The cylindrical spout main body (2) of the spout with an anti-blocking function of the present invention shown here has an inner surface shaped so that the upper outer peripheral side surface of the gap forming component (3) slides on the inner surface. Furthermore, the lower part (4) of the spout main body extended in the outer peripheral direction was provided in the lower part, and the inner surface of the outer peripheral end part of the holed part of a bag film (8) is in an adhesive part (5) on this flange upper surface. It is heat sealed.

Further, the gap forming part (3) is a cylindrical part whose upper part is slid on the inner surface of the spout body (2), and a hole (not shown) through which the content liquid can pass on the upper and lower surfaces. And a hole (10) through which the content liquid can pass when the content liquid is poured out. A gap forming part lower flange (7) extending in the outer peripheral direction is provided at the lower part of the gap forming part (3), and a radial gap forming part flange groove (9) is provided on the lower surface thereof.
The gap forming part (3) is pushed downward by a gap interval (d2) by a filling nozzle (not shown) when filling the content liquid to the position indicated by the dotted line. The content liquid can also flow out from the hole (10) toward the spout upper dispensing opening (6).

  These spouts are usually manufactured by a molding method such as injection molding using a thermoplastic resin such as polyethylene resin or polypropylene resin.

FIG. 1 and FIG. 2 show the state of the spout with the blocking prevention function of the present invention in use, and schematically show the state in the vicinity of the spout when the dispensing has progressed to some extent in the schematic sectional view of the lower part.
FIG. 1 shows a comparatively simple configuration example, and FIG. 2 shows a configuration example in the case where radial grooves are provided in the lower flange portion of the air gap forming component.

With reference to FIG. 1, the state at the time of use of the spout with an obstruction | occlusion prevention function of this invention is demonstrated.
As shown in FIG. 1, the spout with an anti-blocking function of the present invention is heat-sealed on the inner surface of the outer peripheral end portion of the perforated portion formed in the bag film used for the bag-like package made of the flexible film packaging material. The spout to be attached includes a cylindrical body constituting the spout body (2) and a gap forming part (3) that slides on the inner surface of the cylindrical body, and the gap forming part that slides on the inner surface of the cylindrical body (2) has a hole in the side surface. It is a spout with an occlusion prevention function which is a cylindrical shape having a.

  In the schematic cross-sectional view at the bottom of FIG. 1, a state in which the liquid content liquid D is poured out from the spout of the bag-like package to which the spout of the present invention is attached will be described. When the content liquid D filled in the bag-shaped package and hermetically sealed is poured out, the inside of the bag-shaped package (pouch) is depressurized by the discharge of the air due to the content liquid D being poured out, and the lower part of the spout The lower surface of the dispensing opening (6 ′) and the spout body lower flange (4) and the inner surface of the bag film (8) tend to be in close contact with each other.

In this case, the content liquid (D) flowing out as shown by the arrow from the hole (10) on the side surface of the gap forming part (3) protruding from the lower surface of the spout body lower flange (4) by the gap interval (d1) is poured. Since the exit is secured, the flow path is not blocked.
Therefore, the flow path through which the contents flow is held, and the contents D (such as contents remaining in the bag-like package) in the bag-like package are removed from the holes (10) on the side surface of the gap forming component (3). It flows into the lower pouring opening (6 ') and is discharged from the spout with good fluidity.

Next, with reference to FIG. 2, the state in use in the case where the spout with a blocking function of the present invention is provided with a groove will be described.
As shown in FIG. 2, the spout with a blocking prevention function according to the present invention is heat-sealed on the inner surface of the outer peripheral end portion of the perforated portion formed in the bag film used for the bag-like package made of the flexible film packaging material. The spout to be attached includes a cylindrical body constituting the spout body (2) and a gap forming part (3) that slides on the inner surface of the cylindrical body, and the gap forming part that slides on the inner surface of the cylindrical body (2) has a groove in the lower part. It is a spout with an occlusion prevention function which is a cylindrical shape having a hole on a side surface with a flange with a flange.

In the schematic cross-sectional view at the bottom of FIG. 2, a state in which the liquid content liquid (D) is poured out from the spout of the bag-like package to which the spout of the present invention is attached will be described.
When the content liquid (D) filled in the bag-shaped package and hermetically sealed is poured out, the inside of the bag-shaped package (pouch) is depressurized by the discharge of air by the content liquid (D) being poured out. The air gap forming component lower flange portion (7) lower surface and the bag film (8) inner surface tend to adhere to each other.

In this case, the content liquid (D) can flow into the spout as indicated by the arrows by the flange grooves (9) formed radially below the gap forming component.
Further, the content liquid (D) flowing out as indicated by the arrow also from the hole (10) on the side surface of the gap forming part (3) protruding from the lower surface of the spout body lower flange (4) by the gap interval (d2). Since the exit is secured, the flow path is not blocked.

  Therefore, the flow path through which the contents flow is retained, and the contents (D) in the bag-like package (contents remaining in the bag-like package, etc.) ) And the flange groove (9) to flow into the lower pouring opening (6 ′) and discharged from the spout with good fluidity.

Next, an example of the manufacturing method of the bag-shaped package using the spout with a blocking prevention function of the present invention will be described.
First, a film constituting the front wall and a film constituting the rear wall are prepared as bag films. As the film constituting the front wall and the film constituting the rear wall, ordinary plastic films can be used. For example, a polyethylene film, a polypropylene film, a polyester film, a polyamide film, and the like. Moreover, the multilayer film obtained by laminating | stacking two types of films can also be used, and the multilayer film which laminated | stacked metal foil on the plastic film can also be used.

  Preferably, it is a resin film that can be heat-sealed, or a film in which a resin layer that can be heat-sealed is formed on one or both sides. In this case, for example, the content liquid container can be formed by overlapping the front wall and the rear wall and heat-sealing at the periphery. It is also possible to configure an adhesive part that surrounds the airbag part by heat fusion.

Then, a hole is made in the film constituting the front wall, and the spout with the blocking function of the present invention is inserted into the hole, and the film constituting the front wall around the hole and the spout are bonded and fixed (spout). Fixing process). This adhesion is possible, for example, by heat sealing.
Next, the film constituting the front wall and the film constituting the rear wall are overlapped with each other, and heat-sealed at the periphery, thereby forming a bag-like content liquid storage part (content liquid storage part forming step). The content liquid is often filled using a spout, but can be filled from this opening by leaving an opening for filling the content liquid.

  The liquid spouted bag thus obtained is filled with the content liquid using the spout, and after forming the outflow gap by extruding the gap forming part downward with the nozzle on the filling machine, the spout upper opening is formed. For example, it can be used as a package for a bag-in-box.

1 ... Spout 2 ... Spout body (pipe cylinder)
DESCRIPTION OF SYMBOLS 3 ... Space | gap formation part 4 ... Spout main body lower flange part 5 ... Adhesion part 6 ... Spout upper part pouring opening part 6 '... Spout lower part pouring opening part 7 ... Air gap formation part lower flange part 8 ... Bag film 9 ... Air gap formation part Lower flange groove 10 ... Side hole d1 ... Gap spacing d2 ... Gap spacing D ... Content liquid

Claims (3)

  1.    In a spout that is heat-sealed and attached to the inner surface of the outer peripheral end portion of a hole forming portion that is formed in a bag-like package made of a flexible film packaging material, a cylindrical body that constitutes the spout body and a gap forming component that slides on the inner surface of the cylindrical body A spout with an occlusion prevention function characterized by comprising:
  2.   The spout with a blocking prevention function according to claim 1, wherein the gap forming component that slides on the inner surface of the cylindrical body has a cylindrical shape having a hole on a side surface.
  3.   The spout with a blocking prevention function according to claim 1 or 2, wherein the gap forming component that slides on the inner surface of the cylindrical body has a cylindrical shape with a grooved groove at a lower portion of the cylinder.
JP2010126579A 2010-06-02 2010-06-02 Spout with anti-clogging function Pending JP2011251735A (en)

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JP2010126579A JP2011251735A (en) 2010-06-02 2010-06-02 Spout with anti-clogging function

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Application Number Priority Date Filing Date Title
JP2010126579A JP2011251735A (en) 2010-06-02 2010-06-02 Spout with anti-clogging function

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JP2011251735A true JP2011251735A (en) 2011-12-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2595079A1 (en) 2011-11-17 2013-05-22 Sony Corporation Information processing apparatus, information storage apparatus, information processing system, information processing method, and program

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2595079A1 (en) 2011-11-17 2013-05-22 Sony Corporation Information processing apparatus, information storage apparatus, information processing system, information processing method, and program

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