JP2011240959A - Packing container with spout - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bag-shaped container which prevents air (air reservoir) from entering the container, when filled with content, thereby significantly reducing entry of air.SOLUTION: The bag-shaped packing container 1 is configured by mounting a cylindrical spout 3 on a bag-shaped flexible container body 2. An upper seal edge 4 of the container body 2 has a downward slope seal edges 41 that cross side seal edges at a large obtuse angle. Typically, the upper seal edge 4 of the container body 2 has a linear shape, a convex curve shape, a concave curve shape, or a substantially S-shaped curve.

Description

The present invention relates to a packaging container with a spout, specifically, when filling the contents, it is possible to reduce the residual air inside the container, and to effectively reduce the amount of gas existing inside the sealed container. The present invention relates to a packaging container with a spout for filling hydrogen-containing water.
The present invention also relates to a beverage hydrogen-containing water product in which beverage-containing hydrogen water is filled and sealed in the packaging container with spout.

2. Description of the Related Art Conventionally, a bag-like packaging container (pouch container) made of an aluminum laminate film with a plastic spout (spout) or the like is used as a container for storing liquid beverages or fluid foods.
Such a spout-equipped container is a bag-shaped container in which a cylindrical spout is mounted on a flexible bag-shaped container body, and is called a “thia pack”.

Well, it is generally important to maintain the quality of products filled in sealed containers, especially when the contents are food and drink. For example, quality deterioration due to air mixed during filling or storage after production is prevented. Is an important matter. For this reason, various products for avoiding contact of the contents with air and improving the storage stability have already been proposed.
For example, as a proposal for a container, a gas barrier property that uses a highly airtight material for a bag-like container body, a bag with a spout (Patent Document 1), and a highly airtight material for a pouring tool (spout). And / or a pouch spout seal structure that employs a pouring tool having a light-shielding property and a packaging bag with the pouring tool provided with the pouring tool (Patent Document 2) or a cap made of a highly airtight material for the cap. (Patent Document 3).

JP 2002-179078 A JP 2001-213455 A JP 2001-130609 A

As described above, products that have been proposed so far, for example, products that use a highly airtight material for the cover of a bag-like container body, spout, or cap (Patent Documents 1 to 3, etc.), are filled (product completion). Even if the later air mixing is suppressed, this method cannot suppress air mixing during filling.
In particular, in the hydrogen-containing water to be filled in the packaging container of the present invention, the hydrogen is dissolved in the hydrogen-containing water by contacting with the air, so that the hydrogen concentration in the hydrogen-containing water is lowered, and as a result, as hydrogen-containing water. Quality degradation may occur. That is, it is considered that reducing the residual amount of air as much as possible in a container filled and sealed with hydrogen-containing water is an important matter for maintaining the quality of the hydrogen-containing water product.
However, when a bag-like container with a spout is used as a packaging container, a special container for preventing air from entering and remaining when filling the contents in the bag-like container has been proposed in previous patent applications. It has not been.

The present invention has been devised from such a viewpoint. As a result of diligent investigations, the present inventors have determined that the shape of the seal edge at the upper part of the container body in a bag-like container in which a cylindrical spout is attached to a so-called “thia pack” flexible bag-like container body. By improving the above, the present inventors have found a bag-like container that can suppress air mixing (air accumulation) during filling of the contents and can greatly reduce air mixing, and has completed the following invention.

That is, the present invention
A packaging container with a spout for filling hydrogen-containing water, comprising a bag-like container body with flexibility, a spout and a cap,
The bag-shaped container body has a front sheet and a back sheet, and a left side sheet and a right side sheet that are folded and sandwiched between the front sheet and the back sheet,
The right edge of the front seat and the front edge of the right seat, the rear edge of the right seat and the right edge of the rear seat, the left edge of the rear seat and the rear edge of the left seat, and the front edge of the left seat and the left edge of the front seat Are formed into a bag shape having a gusset by being heat-sealed,
The spout is attached by heat sealing between the front sheet and the back sheet in a state where the spout is inserted between the front sheet and the rear sheet.
here,
The upper edge of the front sheet and the upper edge of the right or left sheet span from the heat seal part of the spout and the front sheet to the right or left edge of the front sheet that is heat sealed below the heat seal part. Each part is heat sealed,
In addition, the upper edge of the back sheet and the right or left side of the back sheet extend from the heat seal part of the spout and the back sheet to the right side or left side edge of the back sheet below the heat seal part. Each upper edge is heat sealed,
And, the seal edge extending from the heat seal part between the spout and the front sheet to the right edge seal part of the front sheet, the seal edge extending to the left edge seal part of the front sheet, and the back from the heat seal part between the spout and the back sheet The seal edge extending to the right edge seal portion of the sheet and the seal edge extending to the left edge seal portion of the back sheet are each in any of a straight shape, a convex curve shape, a concave curve shape, or a substantially S-curve shape. The present invention relates to a spouted packaging container.

Alternatively, the present invention
A packaging container with a spout for filling hydrogen-containing water, comprising a bag-like container body with flexibility, a spout and a cap,
The bag-shaped container body has a front sheet and a rear sheet, and a bottom sheet sandwiched between the front sheet and the rear sheet,
The right edge of the front seat and the right edge of the rear seat, the left edge of the front seat and the left edge of the rear seat, the lower edge of the front seat and the front edge of the bottom seat, and the lower edge of the rear seat and the rear side of the bottom seat Each edge is heat-sealed to form a bag,
The spout is attached by heat sealing between the front sheet and the back sheet in a state where the spout is inserted between the front sheet and the rear sheet.
here,
From the heat seal part of the spout, the front sheet and the back sheet to the right or left edge of the front sheet and the back sheet where the heat seal is lower than the heat seal part, the upper edge part and the back sheet of the front sheet The upper edge of each is heat sealed,
And a seal edge extending from the heat seal part between the spout, the front sheet and the back sheet to the right edge seal part of the front sheet, and a seal extending from the heat seal part between the spout, the front sheet and the back sheet to the left edge seal part of the front sheet The present invention relates to a packaging container with a spout, characterized in that each edge has any one of a straight line shape, a convex curve shape, a concave curve shape, or a substantially S-curve shape.

In these spout-equipped packaging containers, the spout is preferably a barrier spout, a spout with a barrier cap, or a barrier spout with a barrier cap.

  Moreover, this invention relates to the hydrogen-containing water product for drinks by which the hydrogen-containing water for drinks is filled and sealed in the said packaging container with a spout.

The spout-equipped packaging container of the present invention can significantly reduce the amount of air mixed into the packaging container when the contents are filled as compared with a conventional spout-equipped container.
For this reason, when the container is used as a storage container for hydrogen-containing water, such as liquid beverages or foods with fluidity, the amount of air mixed into the container at the time of filling is very small. However, there is little change in the dissolved hydrogen concentration of the hydrogen-containing water, and it becomes possible to supply products with stable quality to consumers.
Furthermore, the packaging container with a spout of this invention can discharge | emit contents from a spout easily by pressing a container, after the contents are filled.

  In addition, the hydrogen-containing water product for beverages of the present invention produced using the aforementioned packaging container with a spout has a very small amount of gas present in the container. It is possible to supply consumers with hydrogen-containing water with little change in concentration and stable quality.

FIG. 1: is the front view (a) and perspective view (b) showing one form (gazette type) of the container with a spout of this invention. FIG. 2: is the front view (a) and perspective view (b) showing one form (stand type) of the packaging container with a spout of this invention. Fig.3 (a) is a perspective view showing one form of the spout which can be applied to the packaging container with a spout of FIG.1 or FIG.2, FIG.3 (b)-(e) is the front showing the various form of a spout. FIG. 4 (a) to 4 (d) are front views showing various forms of the seal edge of the packaging container with a spout of the present invention. Fig.5 (a)-(e) is a front view which shows the other form of the seal edge of the packaging container with a spout of this invention. 6 (a) to 6 (b) are front views showing still another form of the seal edge of the spout-equipped packaging device of the present invention. FIGS. 7A to 7C are enlarged views of the upper edge portion of various spout-equipped packaging containers of the present invention in which the seal edge is formed in a substantially S-curve shape. FIG. 8: is the front view (a) and perspective view (b) showing one form (gusset type) of the conventional packaging container with a spout. 9A is a cross-sectional view of the spouted packaging container cut along the line AA ′ in FIG. 1A, and FIG. 9B is the BB ′ line in FIG. 8A. FIG. 9C is a cross-sectional view of the spout-equipped packaging container cut in FIG. 9, and FIG. 9C is a perspective view showing a part of FIG. FIGS. 10 (a) to 10 (g) are process diagrams showing a series of steps for filling and sealing drinking water-containing water in the spouted packaging container of the present invention. FIG. 11 is a flow chart of FIG. 10, before the filling of hydrogen-containing water into the spout packaging container is started (FIG. 10B), the flow path of the filling nozzle is changed and adjusted, It is a figure which shows the process (FIG.11 (b)) in which the process (FIG.11 (a)) which attracts | sucks an inside, and after that, changes and adjusts the flow path of a filling nozzle again, and is filled with hydrogen-containing water.

As a novel method for producing hydrogen-dissolved water (also simply referred to as hydrogen water), which has been attracting attention as being expected to improve various health problems, the present inventors degas the residual gas from the raw material water, By dissolving the obtained degassed water and pressurized hydrogen gas into the gas permeable membrane module and dissolving the hydrogen gas in the degassed water repeatedly in a closed system, it is dissolved in the obtained hydrogen water. A method capable of increasing the hydrogen concentration more efficiently is disclosed in a patent application (Japanese Patent Application No. 2009-123310).
According to this method, after degassing the water, it is possible to obtain hydrogen-containing water having a high concentration close to the saturation concentration by dissolving the pressurized hydrogen gas. Once contacted, the air can be dissolved again in the hydrogen-containing water to reduce the hydrogen concentration in the hydrogen-containing water, which in turn can degrade the quality of the hydrogen-containing water. That is, when filling hydrogen-containing water into a container, it is possible to prevent air from entering the container, and to reduce the residual amount of air as much as possible in a container filled with hydrogen-containing water. This is considered to be an important matter for maintaining product quality.
However, the packaging container with a spout adopted as a container for storing the hydrogen-containing water originally has a structure in which air easily accumulates inside the spout or in the vicinity of the attachment part between the spout and the bag-like container body. When the containing water was filled at high speed, there was a tendency that the hydrogen-containing water was easily filled into the container while embracing the air.

Therefore, the present inventors have studied a measure that can suppress the mixing of air, which can be said to be inevitable when filling liquid beverages such as hydrogen-containing water and fluid foods, etc., and improved the shape of the seal edge of the container body. As a result, the present inventors have found a packaging container with a spout that can significantly reduce the amount of air in the air reservoir.
That is, unlike a conventional container in which the upper seal edge intersects the side seat edge almost at right angles, the upper seal edge of the container body is a downwardly inclined seal edge that intersects the side seal edge at a large obtuse angle. Preferably, the downwardly inclined seal edge is a seal edge having a shape that hardly causes air trapping locally, typically a straight, convex curve, concave curve, or substantially S-curve seal edge. As a result, it has been found that the formation of air pockets can be significantly prevented compared to conventional spouted containers, and the amount of mixed air is much smaller than before when the contents are filled.
The present inventors have completed the present invention assuming that the content to be filled in the container is hydrogen-containing water, but of course, since the effect of maintaining the quality of the content can be obtained, The invention is similarly applied to storage containers for various liquid beverages including jelly beverages and fluid foods. Therefore, the spout-equipped packaging container of the present invention is useful as these storage containers.
Hereinafter, the present invention will be described in detail.

  The packaging container with a spout of the present invention is for filling hydrogen-containing water, and comprises a bag-shaped container body having flexibility, a spout and a cap.

In the present invention, the spout-equipped packaging container refers to a bag-shaped container in which a cylindrical spout is mounted on a flexible bag-shaped container body, a so-called “thia pack” container.
As such a container body, a container body made of an aluminum laminate film, for example, a so-called pouch container is preferably used because of its high airtightness. Examples of the shape of the pouch container include a gusset type (with a town) or a stand type (without a town).
Moreover, as a spout used in the packaging container, it is desirable to use a barrier spout manufactured using a barrier material, a spout with a barrier cap using the same barrier material, or a barrier spout with a barrier cap.
The product capacity of the packaging container is not particularly limited. For example, a packaging container having a capacity of about 100 ml to 2,000 ml, particularly 150 ml to 500 ml, preferably about 180 ml to 300 ml can be suitably used. In this specification, the “product capacity” is a standard capacity (also referred to as an appropriate filling amount) when a product is distributed and sold, and the maximum capacity that can be filled in a packaging container (hereinafter referred to as “maximum capacity” in this specification). ")"), Which is less by about several to 10%.

  As an example of the spouted container of the present invention, FIG. 1 shows a gusset type packaging container, FIG. 2 shows a stand type packaging container, and FIG. 3 shows an example of a spout that can be used for these packaging containers.

As shown in FIG. 1, the gusset-type packaging container 1 with a spout becomes a box shape (cuboid shape) when the contents (hydrogen-containing water) are filled (FIG. 1 (b)). This packaging container comprises a container body 2 formed by heat welding an aluminum laminate sheet and formed into a bag shape, and a spout 3 made of resin. Although omitted in FIG. 1, a resin cap for sealing the opening of the spout 3 is provided.
The container body 2 includes a front sheet 21a, a back sheet 21b, and a right side sheet 21c and a left side sheet 21d that are folded and sandwiched between the two sheets.
And the container body 2 has a right side edge of the front sheet 21a and a front side edge of the right side sheet 21c, a rear side edge of the right side sheet 21c and a right side edge of the back sheet 21b, a left side edge of the back sheet 21b and a back side edge of the left side sheet 21d, In addition, the front side edge of the left sheet 21d and the left side edge of the front sheet 21a are heat-sealed to form a bag having a bottom 22 and a gusset 23, respectively.
Further, the spout 3 is mounted by being heat-sealed with the substantially central portion of the upper edges of both sheets while being inserted between the front sheet 21a and the back sheet 21b.
Here, the upper edge portion of the front sheet 21a extends from the heat seal portion 24a between the spout 3 and the front sheet 21a to the heat-sealed right edge or left edge of the front sheet 21a below the heat seal portion 24a. And the upper edge of the right sheet 21c or the left sheet 21d are heat-sealed. Further, the upper edge of the back sheet 21b extends from the heat seal part 24b between the spout 3 and the back sheet 21b to the heat-sealed right or left edge of the back sheet 21b below the heat seal part 24b. The upper edge portion of the right sheet 21c or the left sheet 21b is heat sealed.
And the seal edge extended from the heat seal part 24a of the spout 3 and the front sheet 21a to the right edge seal part of the front sheet 21a, the seal edge extending to the left edge seal part of the front sheet 21a, and the spout 3 and the back sheet 21b The seal edge extending from the heat seal part 24b to the right edge seal part of the back sheet 21b and the seal edge extending to the left edge seal part of the back sheet 21b are respectively linear, convex curve, concave curve or substantially S-shaped. It is characterized by any one of curved shapes.
In addition, as shown in FIG.1 (b), the heat-sealed part of the upper edge part of the front sheet | seat 21a and the upper edge part of the right sheet | seat 21c, the upper edge part of the back sheet | seat 21b, and the upper edge part of the right sheet | seat 21c The heat-sealed portion of the front sheet 21a may be overlapped and fixed by welding. Similarly, the heat-sealed portion of the upper edge portion of the front sheet 21a and the upper edge portion of the left-side sheet 21d and the upper surface of the rear sheet 21b The edge and the heat-sealed portion of the upper edge of the left sheet 21d may be overlapped and fixed by welding.

As shown in FIG. 2, in the stand-type packaging container 1 with a spout, the container body 2 includes a front sheet 21a, a back sheet 21b, and a bottom sheet 21e that is sandwiched between the two sheets. Composed.
And the container body 2 includes a right side edge of the front sheet 21a and a right side edge of the back sheet 21b, a left side edge of the front sheet 21a and a left side edge of the back sheet 21b, a lower side edge of the front sheet 21a and a front side edge of the bottom sheet 21e, and The lower edge of the back sheet 21b and the rear edge of the bottom sheet 21e are heat-sealed, thereby forming a bag shape having the bottom 22.
The spout 3 is mounted by being heat-sealed with the substantially central portion of the upper edges of both sheets while being inserted between the front sheet 21a and the back sheet 21b.
And from the heat seal part 214 of the spout 3 and the front sheet 21a and the back sheet 21b to the right side edge or the left side edge of the front sheet 21a and the back sheet 21b below the heat seal part, the front side The upper edge portion of the sheet 21a and the upper edge portion of the back sheet 21b are heat sealed, respectively.
And the seal edge extended from the heat seal part 24 of the spout 3 to the front sheet 21a and the back sheet 21b to the right edge seal part of the front sheet 21a (and the back sheet 21b), heat of the spout, the front sheet 21a and the back sheet 21b The seal edge extending from the seal part 24 to the left side edge seal part of the front sheet 21a (and the back sheet 21b) is in any one of a straight line shape, a convex curve shape, a concave curve shape, or a substantially S-curve shape. It is characterized by that.

As shown in FIG. 3A, the spout 3 is provided with a straw portion 31 that serves as an inlet for contents, and a mouth portion 32 that serves as a filling and suction port for contents. A male thread portion 33 is formed on the outer periphery of the lower portion of the mouth portion 32 so that the cap can be detachably screwed, and a projection portion 38 for engaging the cap is formed further below. ing. Further below that, a flange 37 is formed to be fitted into the guide rail when the container is supplied when the container is fed. Although not shown in the figure, a female screw portion that is screwed into the male screw portion 33 of the mouth portion 32 is formed on the inner periphery of the cap that seals the opening portion of the spout 3. In addition, a sealing material that seals the opening after filling the contents can be provided at the tip of the mouth 32, thereby preventing the contents from leaking out from the mouth 32 even under pressure and heat sterilization. Can be prevented. These sealing materials are formed by a film or the like obtained by laminating a synthetic resin film and a metal foil, and are welded to the opening at the tip of the mouth 32 by means such as heat sealing.
A heat welding portion 34 for heat welding to the container body 2 is provided below the flange 37. In addition, a hole 36 is provided above the straw portion 31, so that the contents can be sucked out easily. And the reinforcement | strengthening of the hole 36 formation part and the ear | edge part 35 for arrange | positioning the spout 3 stably to the container body 2 are formed so that it may extend below the said heat welding part 34 continuously.

  The length of the straw portion in the spout can vary as shown in FIGS. That is, the length of the straw portion 31 is a form of a length extending downward from the ear portion 35 provided for reinforcing the strength of the hole 36 forming portion (FIG. 3B), and the lower end of the ear portion 35. And the lower end of the straw portion 31 are of the same length (FIG. 3C), the same length as the hole 36 forming portion (FIG. 3D), and the heat welded portion 34. It may be various, such as the form of the length (FIG. 3 (e)).

As described above, the present invention is characterized by the shape of the seal edge at the top of the container body.
FIGS. 4A to 4D show the shape of the seal edge 41 extending from the heat seal part of the spout and the front sheet and / or the back sheet to the right seal part or the left seal part of the front sheet (and / or the back sheet). Is linear (FIG. 4A), convex curve (FIG. 4B), concave curve (FIG. 4C), or substantially S-curve (FIG. 4D) It is a figure which shows an example.
Further, as shown in FIGS. 5A to 5D, the seal edge 41 may be formed so as to be continuous with the lower end of the heat welding portion 34 of the spout 3, and the shape of the seal edge 41 in this case is as follows. Examples thereof include a straight line shape (FIG. 5A), a convex curve shape (FIG. 5B), a concave curve shape (FIG. 5C), and a substantially S-curve shape (FIG. 5D). Moreover, it can also be set as the linear and convex curve-shaped seal edge 41 (FIG.5 (e)).
6A and 6B, the upper part of the seal edge 4 of the container body 2 can be formed to have the same inclination as the seal edge 41.
4-6 is a figure which shows an example of the shape of the seal edge of the container upper part in this invention, Comprising: It is also possible to set it as the seal edge of the shape which combined various shapes mentioned here variously.

Here, as shown in FIGS. 4 to 6, the shape of the seal edge 41 in the present invention is such that the right seal part of the front sheet (and / or the back sheet) is changed from the heat seal part of the spout and the front sheet and / or the back sheet. Or it is characterized in that the left seal portion extends in a continuously inclined manner. That is, as shown by an angle α in FIG. 4B, the seal edge 41 intersects with the right seal portion or the left seal portion at an obtuse angle of at least 90 ° or more, preferably 100 ° or more. It is characterized by doing so.
Thereby, the generation | occurrence | production of the clearance gap which air accumulates in the contact vicinity of the right seal part or the left seal part, and the seal edge 41 can be suppressed.
On the other hand, in the conventional cheer pack packaging container as shown in FIG. 8, the seal edge 42 is at an angle of about 90 ° with respect to the right seal part or the left seal part, as indicated by the angle β in FIG. The seal edge 42 has a shape of a part of a trapezoidal wave (a half cycle from the largest peak to the smallest valley).

FIG. 7 shows an enlarged view of the seal edge 41 when the seal edge 41 is formed in a substantially S-curve shape.
According to this, as an example of a substantially S-shaped curve, when the radii of curvature R and R ′ of two arcs that can be divided at the inflection point f are equal (FIG. 7A), two that can be divided at the inflection point f. When the arc radii of curvature R and R ′ are different (FIG. 7B), a straight line portion L is included between two arcs R and R ′ that can be divided at the inflection point f (FIG. 7C). And so on.
Here, the radius of curvature R, R ′ of the arc that forms a substantially S-curve shape and the length of the straight line portion L in the case of having a straight line portion are appropriately determined depending on the size of the packaging container, preferably The radius of curvature R, R ′ is 5 to 50 mm, and the length of the straight line portion L is 0.1 to 0.5 mm.
In this figure (FIGS. 7A and 7B), the substantially S-shaped curved seal edge 41 has a mountain-to-valley shape from a position close to the spout mounting portion, and the right seal portion or the left seal portion. However, this shape may have a valley-to-mountain shape from a position close to the spout mounting portion. Moreover, it may have a plurality of concave and convex shapes such as peaks → valleys → peaks from a position close to the spout mounting part, and may intersect with the right seal part or the left seal part, or a combination of peaks and straight lines, valleys and straight lines. It may be a seal edge of the shape.

The spout-equipped packaging container of the present invention has a structure in which air accumulation is unlikely to occur, but a filling method for discharging the air remaining in the container in accordance with the timing for sealing the container as shown below. By adopting, the air remaining in the container can be further reduced.
That is, the side of the packaging container with a spout filled with the contents (hydrogen-containing water) is pressed to discharge the air accumulated in the container together with the contents, that is, sealing the opening of the spout while discharging the contents. By performing this, the amount of air remaining in the container can be reduced as compared with the conventional filling method.

The present invention also relates to a beverage-containing hydrogen-containing water product filled and sealed in the spouted packaging container.
Specifically, when a gusset type container body (see the packaging container shown in FIG. 1) is used as a bag-shaped container body in the spouted packaging container, and when the product capacity of the container is less than 250 ml, the container The amount of gas in the container is less than 7 ml, preferably less than 5 ml. When the product capacity of the container is 250 ml or more and 500 ml or less, the amount of gas in the container is less than 9 ml, preferably less than 7 ml. It relates to hydrogen-containing water products.
Alternatively, when a stand-type container body (see the packaging container shown in FIG. 2) is used as a bag-shaped container body in the spouted packaging container, and when the product capacity of the container is less than 250 ml, The amount of gas is less than 3 ml, preferably less than 2.5 ml, or when the product capacity of the container is 250 ml or more and 500 ml or less, the amount of gas in the container is 4 ml.
Less than, preferably less than 3 ml, relates to a drinking hydrogen-containing water product.
In addition, the gas which exists in a container in the manufactured hydrogen-containing water product for drinks includes the air mixed at the time of product manufacture, hydrogen evaporated from the hydrogen-containing water, and the like.

  Preferred embodiments of the present invention will be described more specifically, but the present invention is not limited thereto.

Example 1: Gazette-type packaging container with spout A gusset-type packaging container with spout shown in FIG. 1 was produced as follows.
The elongated right side sheet 21c and the left side sheet 21d were folded in two on both sides of the front sheet 21a and the back sheet 21b, each having a substantially rectangular shape. Next, the right side edge of the front sheet 21a and the front side edge of the right side sheet 21c, the rear side edge of the right side sheet 21c and the right side edge of the back sheet 21b, the left side edge of the back sheet 21b and the back side edge of the left side sheet 21d, and the left side sheet 21d The front side edge and the left side edge of the front sheet 21a were heat-sealed to form a bottom part 22 and a town part 23, thereby forming a bag.
And the spout 3 was inserted in the upper-edge substantially center part of the front sheet | seat 21a and the back sheet | seat 21b, the front sheet | seat 21a and the back sheet | seat 21b were heat-sealed with the spout 3, and the heat seal parts 24a and 24b were formed.
Here, the upper edge portion of the front sheet 21a extends from the heat seal portion 24a between the spout 3 and the front sheet 21a to the heat-sealed right edge or left edge of the front sheet 21a below the heat seal portion 24a. And the right edge of the right side sheet 21c or the left side sheet 21d are heat-sealed, and the heat-sealed right side of the back sheet 21b below the heat seal part 24b from the heat seal part 24b between the spout 3 and the back sheet 21b. The upper edge of the back sheet 21b and the upper edge of the right sheet 21c or the left sheet 21b were heat-sealed over the edge or the left edge, respectively.
Here, the upper edge portion of the front sheet 21a extends from the heat seal portion 24a between the spout 3 and the front sheet 21a to the heat-sealed right edge or left edge of the front sheet 21a below the heat seal portion 24a. And the upper edge portion of the right sheet 21c or the left sheet 21d were heat sealed, respectively, and the back sheet 21b below the heat seal section 24b was heat sealed from the heat seal section 24b of the spout 3 and the back sheet 21b. The seal edge 41 was formed by heat-sealing the upper edge of the back sheet 21b and the upper edge of the right sheet 21c or the left sheet 21b over the right edge or the left edge.
At this time, the shape of the seal edge 41, that is, the seal edge extending from the heat seal part 24a between the spout 3 and the front sheet 21a to the right edge seal part of the front sheet 21a and the seal edge extending to the left edge seal part of the front sheet 21a The seal edge extending from the heat seal portion 24b between the spout 3 and the back sheet 21b to the right edge seal portion of the back sheet 21b and the seal edge extending to the left edge seal portion of the back sheet 21b are linear. The seal edge 41 was formed.

Comparative Example 1: Conventional Gazette Type Spouted Packaging Container As Comparative Example 1, a commercially available conventional gazette type packaging container with spout was prepared (FIG. 8). As shown in FIG. 8A, the shape of the seal edge 42 on the upper side of the seal edge 4 is not a straight line, a convex curve, a concave curve, or a substantially S-curve, but a part of a trapezoidal wave ( Half-cycle from the maximum wave to the minimum value).

Here, the cross-sectional view of the packaging container with spout of Example 1 shown in FIG. 1 (a) cut along the line AA 'is shown in FIG. 9 (a), and the packaging with spout of Comparative Example 1 in FIG. 8 (a). 9B and 9C show cross-sectional views of the container cut along line BB ′.
As shown in FIG. 9A, in the case of the packaging container with a spout of Example 1, the container body 2 swells along the seal edge 41 when the container body 2 is inflated on the assumption that the contents are filled. No gap was formed in the vicinity of 41 to form an air pool.
On the other hand, as shown in FIG. 9 (b) and FIG. 9 (c), which is an enlarged view of a part thereof, when the spout-equipped packaging container of Comparative Example 1 is inflated in the same manner, Formation was seen.

Example 2: Stand-type packaging container with spout A stand-type packaging container with spout shown in Fig. 2 was produced as follows.
The bottom sheet 21e was folded in between the lower side portions of the front sheet 21a and the back sheet 21b having a substantially rectangular shape. Next, the right side edge of the front sheet 21a and the right side edge of the back sheet 21b, the left side edge of the front sheet 21a and the left side edge of the back sheet 21b, the lower side edge of the front sheet 21a and the front side edge of the bottom sheet 21e, and the back sheet 21b The bottom edge and the rear edge of the bottom sheet 21e were heat-sealed to form the bottom 22 to form a bag.
And the spout 3 was inserted in the insertion port 24 of the upper edge substantially center part of the front sheet | seat 21a and the back sheet | seat 21b, the front sheet | seat 21a and the back sheet | seat 21b were heat-sealed with the spout 3, and the heat seal part 24 was formed.
Furthermore, from the heat seal part 214 of the spout 3 to the front sheet 21a and the back sheet 21b, to the right side edge or the left side edge of the front sheet 21a and the back sheet 21b below the heat seal part, the front side The upper edge part of the sheet 21a and the upper edge part of the back sheet 21b were respectively heat-sealed to form a seal edge 41.
At this time, the shape of the seal edge 41, that is, the seal edge extending from the heat seal part 24 between the spout 3 and the front sheet 21a and the back sheet 21b to the right edge seal part of the front sheet 21a (and the back sheet 21b), the spout and the front The seal edge 41 was formed so that the shape of the seal edge extending from the heat seal part 24 between the sheet 21a and the back sheet 21b to the left edge seal part of the front sheet 21a (and the back sheet 21b) was linear.

Comparative Example 2: Conventional Stand-Type Packaging Container with Spout As Comparative Example 2, a conventional stand-type packaging container with spout was made easy. Similar to Comparative Example 1, the seal edge 42 on the upper side of the seal edge 4 is not linear, convex curve, concave curve, or substantially S-curve, and is part of a trapezoidal wave (from the maximum peak to the minimum valley). Half cycle).

[Air mixing test]
Next, using the spouted packaging containers of Example 1 and Example 2 and Comparative Example 1 and Comparative Example 2, the contents (hydrogen-containing water) were actually filled and filled (hereinafter referred to as hydrogen-containing water product). The amount of air mixed into the container of the product was measured.

The hydrogen-containing water used in this test can be suitably produced by the method disclosed by the present inventors in a previous patent application (Japanese Patent Application No. 2009-123310).
That is, (1) a purification step of filtering and purifying water as a raw material in the purification device and sending the obtained purified water to the deaeration device; and (2) degassing the purification water supplied to the deaeration device. A degassing step of sending the obtained degassed water to the hydrogen dissolving device; (3) dissolving hydrogen gas in the degassed water supplied to the hydrogen dissolving device, and sending the obtained hydrogen dissolved water to the sterilizer A hydrogen dissolution step, (4) a sterilization step of sterilizing the hydrogen-dissolved water supplied to the sterilization device, and sending the obtained hydrogen-containing water to the filling device, and (5) hydrogen-containing water supplied to the filling device. Filling the sealed container and sending the filled water product to the heat sterilizer, and (6) a heat sterilization step of heat sterilizing the water product sent to the heat sterilizer, The apparatus is divided into a water chamber and a gas chamber by a gas permeable membrane, and the deaeration is performed in the water chamber. The hydrogen-containing water obtained in step (4) is provided with a gas permeable membrane module that dissolves hydrogen gas in the degassed water by supplying hydrogen gas under pressure to the gas chamber. Part of the process is returned to the degassing device in step (2), and step (2)
The hydrogen-containing water was produced by a method of circulating water between steps (4).
Using the spouted packaging containers of Example 1 and Example 2 and Comparative Example 1 and Comparative Example 2 to produce products filled with hydrogen-containing water obtained by the above-mentioned method, Example 1 and Example Compared with the filled products using the containers of Comparative Example 1 and Comparative Example 2, the filled product using the container of 2 was able to suppress the mixing of air into the container.

The (5) filling process is not particularly limited, and a conventional filling apparatus / filling method can be adopted. For example, by performing according to the process diagram shown in FIG. 10, the mixing of air into the container of the hydrogen-containing water product is suppressed. be able to. The filling methods employed in the following Examples 3 to 6 are shown below.
First, the packaging container 1 with a spout was prepared (FIG. 10 (a)), and filling of hydrogen-containing water was started from the opening part of the spout 3 through the filling nozzle 5 of the filling device (FIG. 10 (b)). At this time, as shown in FIG. 11, before the filling of the hydrogen-containing water was started, the flow path of the filling nozzle 5 was changed and adjusted to suck the inside of the spouted packaging container 1 (FIG. 11 (a)). After that, the flow path of the filling nozzle 5 is changed and adjusted again to fill with hydrogen-containing water (11 (b)), so that the fitting of the container and the filling nozzle is made dense and the inside of the container, particularly the spout, is made. The air was exhausted.
The hydrogen-containing water was filled to the extent that the hydrogen-containing water overflowed from the spout-equipped packaging container 1 (FIG. 10C), and then the filling nozzle 5 was removed from the opening of the spout 3 (FIG. 10D). ).
Next, the side surface of the spout-equipped packaging container 1 is pressed by the pressing tool 8 to extrude the hydrogen-containing water from the inside of the container (FIG. 10E), and the spout 3 is opened while the hydrogen-containing water overflows from the container. The part was sealed with the cap 10 using the mounting nozzle 9 (FIGS. 10 (f) and (g)).

Example 3: Production of hydrogen-containing water product and aeration test (1)
Hydrogen-containing water products were produced using the spout-equipped packaging containers of Example 1 and Comparative Example 1. The proper filling amount of these containers is 200 ml.
The spouted packaging container of Example 1 was filled with hydrogen-containing water to such an extent that it overflowed slightly from the container (filling capacity: about 220 ml). The spout used here had a length of 60 mm from the lower end of the heat-welded portion (see FIG. 3B).
Then, press the opposite side of the packaging container at the same time, discharge the air remaining in the container together with a small amount of hydrogen-containing water, and seal the spout opening using a filling and packaging machine while the hydrogen-containing water is discharged Cap and then heat sterilized at 85 ° C. for 30 minutes to produce a hydrogen-containing water product.
In addition, by adjusting the pressure at the time of pressing, 10 products each having a hydrogen-containing water discharge amount of about 3% or about 10% with respect to the filling amount of hydrogen-containing water (about 220 ml) were produced.
Moreover, the spout opening part was sealed, cap, and heat-sterilized as it was without pressing after filling with hydrogen-containing water using the spout-equipped packaging container of Comparative Example 1 (length from the lower end of the heat-welded part of the spout: 60 mm). 10 were manufactured.

Measurement of the amount of air mixed into each produced hydrogen-containing water product was performed as follows.
The graduated cylinder was completely filled with water, submerged in a 100 L water tank filled with water, and turned upside down. Each manufactured hydrogen-containing water product was submerged in the water tank, the cap was opened in water, the contents were extruded, and the discharged air was collected with a graduated cylinder. The amount of mixed air (ml) was measured from the graduated cylinder scale, and the average value was measured.
The obtained results are shown in Table 1.

Example 4: Production of hydrogen-containing water products and aeration test (2)
Instead of the gusset-type packaging containers used in Example 3 (Example 1 and Comparative Example 1), hydrogen-containing water products were produced using the packaging containers with spouts of Example 2 and Comparative Example 2. The proper filling amount of these containers is 180 ml.
The spout-equipped packaging container of Example 2 was filled with hydrogen-containing water to such an extent that the container slightly overflowed (about 200 ml). The spout used here had a length of 60 mm from the lower end (see FIG. 2) of the heat welded portion.
Then, press the opposite side of the packaging container at the same time, discharge the air remaining in the container together with a small amount of hydrogen-containing water, and seal the spout opening using a filling and packaging machine while the hydrogen-containing water is discharged Cap and then heat sterilized at 85 ° C. for 30 minutes to produce a hydrogen-containing water product.
In addition, by adjusting the pressure at the time of pressing, 10 products each having a discharge amount of hydrogen-containing water of about 1% or about 5% with respect to a filling amount of hydrogen-containing water (about 200 ml) were manufactured.
Moreover, the spout opening part is sealed, cap, and heat-sterilized as it is without pressing after filling with hydrogen-containing water using the spout-equipped packaging container of Comparative Example 2 (length from the lower end of the heat-welded part of the spout: 60 mm). 10 were manufactured.
The amount of air mixed into each produced hydrogen-containing water product was measured by the same procedure as in Example 3.
The results are shown in Table 2.

Example 5: Production of hydrogen-containing water product and aeration test (3)
Each spout-equipped packaging container used in Example 3 was the same as Example 3 except that a spout having a length of 12 mm from the lower end (see FIG. 2) of the heat-welded portion was used (see FIG. 3C). A hydrogen-containing water product was manufactured.
The amount of air mixed into each produced hydrogen-containing water product was measured by the same procedure as in Example 3.
The results are shown in Table 3.

Example 6: Production of hydrogen-containing water product and aeration test (4)
In the packaging container with a spout used in Example 3, a spout having a length of 5 mm from the lower end (see FIG. 2) of the heat-welded portion (see FIG. 3D) was used, as in Example 3. A hydrogen-containing water product was produced.
The amount of air mixed into each produced hydrogen-containing water product was measured by the same procedure as in Example 3.
The results are shown in Table 4.

  As shown in Examples 3 to 6, hydrogen-containing water products manufactured using the spout-equipped packaging container of the present invention manufactured in Examples 1 and 2 are the conventional ones in Comparative Examples 1 and 2. Compared with the packaging container with spout, the amount of air remaining in the container could be kept much lower.

DESCRIPTION OF SYMBOLS 1 Packaging container with a spout 2 Container body 21a Front sheet 21b Rear sheet 21c Right side sheet 21d Left side sheet 21e Bottom sheet 22 Bottom part 23 Town part 24 (24a, 24b) Heat seal part 3 Spout 31 Straw part 32 Mouth part 33 Male screw Part 34 Thermal welding part 35 Ear part 36 Hole 37 Flange 38 Projection part 4 Seal edge 41, 42 Seal edge 43 Gap 5 Filling nozzle 6 Hydrogen-containing water tank 7 Suction pump 8 Pressing tool 9 Mounting nozzle 10 Cap

Claims (5)

A packaging container with a spout for filling hydrogen-containing water, comprising a bag-like container body with flexibility, a spout and a cap,
The bag-shaped container body has a front sheet and a back sheet, and a left side sheet and a right side sheet that are folded and sandwiched between the front sheet and the back sheet,
The right edge of the front seat and the front edge of the right seat, the rear edge of the right seat and the right edge of the rear seat, the left edge of the rear seat and the rear edge of the left seat, and the front edge of the left seat and the left edge of the front seat Are formed into a bag shape having a gusset by being heat-sealed,
The spout is attached by heat sealing between the front sheet and the back sheet in a state where the spout is inserted between the front sheet and the rear sheet.
here,
The upper edge of the front sheet and the upper edge of the right or left sheet span from the heat seal part of the spout and the front sheet to the right or left edge of the front sheet that is heat sealed below the heat seal part. Each part is heat sealed,
In addition, the upper edge of the back sheet and the right or left side of the back sheet extend from the heat seal part of the spout and the back sheet to the right side or left side edge of the back sheet below the heat seal part. Each upper edge is heat sealed,
And, the seal edge extending from the heat seal part between the spout and the front sheet to the right edge seal part of the front sheet, the seal edge extending to the left edge seal part of the front sheet, and the back from the heat seal part between the spout and the back sheet The seal edge extending to the right edge seal portion of the sheet and the seal edge extending to the left edge seal portion of the back sheet are each in any of a straight shape, a convex curve shape, a concave curve shape, or a substantially S-curve shape. A packaging container with a spout, characterized by being made. A packaging container with a spout for filling hydrogen-containing water, comprising a bag-like container body with flexibility, a spout and a cap,
The bag-shaped container body has a front sheet and a rear sheet, and a bottom sheet sandwiched between the front sheet and the rear sheet,
The right edge of the front seat and the right edge of the rear seat, the left edge of the front seat and the left edge of the rear seat, the lower edge of the front seat and the front edge of the bottom seat, and the lower edge of the rear seat and the rear side of the bottom seat Each edge is heat-sealed to form a bag,
The spout is attached by heat sealing between the front sheet and the back sheet in a state where the spout is inserted between the front sheet and the rear sheet.
here,
From the heat seal part of the spout, the front sheet and the back sheet to the right or left edge of the front sheet and the back sheet where the heat seal is lower than the heat seal part, the upper edge part and the back sheet of the front sheet The upper edge of each is heat sealed,
And a seal edge extending from the heat seal part between the spout, the front sheet and the back sheet to the right edge seal part of the front sheet, and a seal extending from the heat seal part between the spout, the front sheet and the back sheet to the left edge seal part of the front sheet The packaging container with a spout, characterized in that each edge has a shape of a straight line, a convex curve, a concave curve, or a substantially S-curve. The packaging container with a spout according to claim 1 or 2, wherein the spout is a barrier spout, a spout with a barrier cap, or a barrier spout with a barrier cap. A hydrogen-containing water product for beverages, wherein the hydrogen-containing water for beverages is filled and sealed in the spout-equipped packaging container according to claim 1. A hydrogen-containing water product for beverages, wherein the hydrogen-containing water for beverages is filled and sealed in the spouted packaging container according to claim 2.

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