JP7310256B2 - Refill pouch and method of setting the mounting angle of the mouth of the refill pouch - Google Patents

Description

TECHNICAL FIELD The present invention relates to a refillable pouch and a method for setting an angle at which the refillable mouth of the refillable pouch is attached. The present invention relates to a refill pouch and a method for setting an attachment angle of the mouth of the refill pouch.

BACKGROUND ART In recent years, refillable pouches such as standing pouches made of a soft synthetic resin film containing liquid for refilling have been widely used. In particular, large-capacity refill pouches containing liquid content twice or more the capacity of the shape-retaining container to be refilled have become popular. The refill pouch is provided with a spout for pouring out the liquid content when the liquid content is transferred to a shape-retaining container such as a plastic bottle.

On the other hand, since the refill pouch is made of a soft synthetic resin film and is soft, it is difficult to grasp the body of the pouch with the liquid contained therein. In particular, large-capacity refillable pouches are heavy and easy to slip from fingers when lifted, making it difficult to refill the contents.
Therefore, Patent Document 1 proposes a refill pouch that is easy to hold when transferring the content liquid by providing a simple configuration of a thick piece.

JP 2018-118784 A

By the way, when refilling the refill pouch with the content liquid into the shape-retaining container of the refilling destination, the content liquid may rush out and spill out at the beginning of pouring. In particular, when refilling from a large-capacity refill pouch, it is necessary to lift and tilt the refill pouch with both hands while keeping the shape-retaining container to be refilled on the floor or table. In many cases, the content liquid is violently ejected before being brought to the mouth of the shape-retaining container to be refilled.
In addition, when the shape-retaining container to be refilled has a narrow opening that opens in a substantially horizontal plane, such as a spray bottle, or when liquid detergent or softener is not equipped with a transition cap to prevent dripping, When refilling into a shape-retaining container, the content liquid tends to spill more easily during refilling.
In particular, when the content liquid is a liquid with a viscosity as low as that of water, such as a synthetic bathroom detergent or a liquid deodorant, the content liquid of the refill pouch is a liquid detergent or softener. The content liquid tends to squirt more vigorously than when it is a high-viscosity liquid such as .

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides a refill pouch that prevents the content liquid from spilling at the beginning of pouring when transferring the content liquid, and a method for setting the mounting angle of the refill pouch at the mouth of the refill pouch. It is intended to

As a result of various experiments and studies, the inventor of the present application has found that, in a conventional refill pouch, when the content liquid is refilled from the refill pouch to the shape-retaining container of the refill destination, the content liquid escapes from the mouth of the refill pouch. It was found that if the opening of the refillable pouch faces upwards from the horizontal at the moment the refill pouch starts to be poured out, the content liquid rushes out vigorously and easily spills out. The present invention has been made based on such findings.

That is, in order to achieve the above object, the refill pouch of the present invention includes a storage portion formed between a superimposed front side film and a back side film, and a storage portion formed at the edges of the front side film and the back side film. a sealed portion, a tube mouth portion attached for pouring out the content liquid when refilling the content liquid contained in the containing portion into another container, and the content liquid contained in the containing portion; wherein the storage part has a capacity of 400 to 4000 mL, and the sealing part comprises two opposing side seal parts, a top seal part, and the two side seal parts an inclined seal portion that is inclined with respect to the one side seal portion and communicates between the one side seal portion and the top seal portion; When the refill pouch is attached to the inclined seal portion so that the axis of the cylinder mouth portion is slanted, and the refill pouch is not tilted before the first refill, the liquid level of the content liquid is equal to the cylinder mouth lower than the height of the lower end of the inner opening of the refill pouch until the liquid surface of the content liquid comes into contact with the lower end of the inner opening of the cylindrical mouth before the first refilling. The cylinder opening is attached so that the lower end of the outer opening of the cylinder opening is lower than the lower end of the inner opening when tilted toward the outside.

Further, the method for setting the mounting angle of the mouth portion of the refill pouch according to the present invention includes: a storage portion formed between the superimposed front side film and the back side film; a sealed portion, a tube mouth portion attached for pouring out the content liquid when refilling the content liquid contained in the containing portion into another container, and the content liquid contained in the containing portion; wherein the accommodating portion has a capacity of 400 to 4000 mL, and the sealing portion comprises two opposing side seal portions and a top a seal portion; and an inclined seal portion that is inclined with respect to the one side seal portion and communicates between one side seal portion of the two side seal portions and the top seal portion; The part is attached to the inclined seal part so that the axis of the cylinder mouth part is inclined with respect to the outer edge of the side seal part, and the contents when the refill pouch is not inclined before the first refilling. The height of the liquid level of the liquid is lower than the height of the lower end of the inner opening of the cylinder opening, and the liquid level of the content liquid is lower than the lower end of the inner opening of the cylinder opening before the first refilling . When the refill pouch is tilted to the side of the mouth , the mounting angle of the mouth is set so that the lower end of the outer opening of the mouth is lower than the bottom of the inner opening. It is characterized by setting

According to the present invention, when the refill pouch is tilted until the liquid surface of the content liquid before refilling comes into contact with the lower end of the inner opening of the cylindrical mouth, the lower end of the outer opening of the cylindrical mouth is positioned at the inner opening. The mouth part is attached so as to be lower than the lower end part. In other words, the mouth portion is attached so that the mouth portion faces downward from the horizontal at the moment when the refill pouch is tilted and the content liquid starts to pour out from the mouth portion. Furthermore, in other words, the mouth portion is attached so that the axis extending from the base to the tip of the mouth portion forms an angle of depression with respect to the horizontal at that moment.

As a result, it is possible to prevent the content liquid from jumping upward at the moment when the content liquid starts to pour out from the tube opening, and it is possible to prevent the content liquid from spilling at the beginning of pouring. In addition, since the mouth portion faces downward from the horizontal at the beginning of pouring, it is easy to insert the mouth portion into the mouth portion of the shape-retaining container to be refilled, and as a result, it is difficult to spill the contents at the beginning of pouring. can be done.

In addition, if the cylinder mouth faces upwards from the horizontal just before the content liquid starts to pour out from the cylinder mouth part, the inner opening of the cylinder mouth part is blocked by the contents liquid and the inflow of air from the outside is blocked. There is Therefore, at the moment when the content liquid starts to pour out, the content liquid filling the inside of the cylinder mouth section is suddenly ejected with force.
On the other hand, as in the present invention, the inside of the tube is not filled with the liquid if the tube is facing downward from the horizontal when the liquid starts to pour out from the tube. As a result, at the moment when the content liquid starts to pour out from the tube mouth portion, it is avoided that the content liquid filling the tube mouth portion rushes out all at once, and the content liquid is less likely to spill out.

According to the present invention, it is possible to provide a refill pouch in which the liquid content is less likely to spill at the beginning of pouring when the liquid content is transferred, and a method for setting the attachment angle of the mouth portion of the refill pouch.

1 is a front view of a refill pouch according to an embodiment of the present invention; FIG. Fig. 2 is an enlarged view of a main part showing a state in which the refill pouch shown in Fig. 1 is tilted to the point immediately before the content liquid is poured out; 1 is a front view of a conventional refill pouch; FIG. FIG. 4 is an enlarged view of a main part showing a state in which the conventional refill pouch shown in FIG. 3 is tilted to the point immediately before the content liquid is poured out;

(conventional refill pouch)
First, prior to describing the embodiments of the present invention, a conventional refill pouch will be described with reference to FIGS. 3 and 4. FIG.
The conventional refill pouch 100 shown in FIG. 3 is a standing pouch, and includes an accommodation portion 102 formed between the superimposed front side film 101a and back side film 101b, and the edges of the front side film 101a and the back side film 101b. and a seal formed on the rim. As the seal portion, two opposing side seal portions 103 and 104, which seal the front side film 101a and the back side film 101b, a top seal portion 105, and a bottom gusset portion 106 with the front side film 101a and the back side film 101b. A sealed bottom seal portion 107 is formed.

In the refill pouch 100, the corner portion where the side seal portion 103 and the top seal portion 105 of one of the two side seal portions 103 and 104 meet is obliquely cut off, so that the side seal portion 103 and the top seal portion 105 meet. An inclined seal portion 108 is formed to communicate between them. The inclined seal portion 108 is inclined at approximately 45° with respect to the side seal portion 103 .

The inclined seal portion 108 is attached with a cylinder mouth portion 109 for pouring out the content liquid when the content liquid contained in the containing portion 102 is refilled into another container. The tube mouth portion 109 is provided so as to be substantially orthogonal to the outer edge of the inclined seal portion 108 . The mouth portion 109 is also arranged such that the inner side opening 191 of the mouth portion 109 is positioned at the inner edge of the inclined seal portion 108 .
In addition, FIG. 3 shows a state before the screw cap 109a is screwed into the tube mouth portion 109, and FIG. 4 shows a state where the screw cap 109a is removed.

Here, FIG. 4 shows a state in which the conventional refill pouch 100 is tilted until just before the content liquid is poured out at the time of the first refill. As shown in the figure, at this time, the axis O of the mouth part 109 of the refill pouch 100 faces upward with respect to the liquid level cf of the content liquid C. As shown in FIG. In the figure, this elevation angle is represented by θe.
In other words, when the refill pouch 100 is tilted until the height of the liquid surface cf of the content liquid C becomes substantially the same as the height of the lower end portion 192a of the outer opening 192 of the cylindrical mouth portion 109, the cylindrical mouth portion 109 The outer side opening 192 of the is directed upward from the horizontal. That is, the position of the lower end 192a of the outer opening 192 of the cylinder mouth 109 is higher than the position of the lower end 191a of the inner opening 191 of the cylinder mouth 109 .

In fact, when the refill pouch 100 is tilted to the point just before the content liquid C is poured out, the internal opening 191 of the cylindrical mouth portion 109 may be blocked by the content liquid, thereby blocking the inflow of air from the outside. be. Therefore, when the content liquid C begins to pour out from the tube mouth portion 109 while the tube mouth portion 109 faces upward from the horizontal, the content liquid filling the inside of the tube mouth portion 109 rushes out all at once at the beginning of pouring. , often spilled.
That is, since the air A in the storage part 2 is not connected to the air outside the refill pouch 100, the mass of gas from the outside pushes away the content liquid C filling the inside of the mouth part 109 and enters the mouth part 109. At the same time, the pushed-aside content liquid C in the cylinder mouth portion 109 is forced out.

(Refill pouch according to an embodiment of the present invention)
Next, an embodiment of a refill pouch according to the present invention and a method for setting an attachment angle of its mouth portion will be described with reference to FIGS. 1 and 2. FIG.
A refill pouch 10 shown in FIG. 1 is a standing pouch, and a storage portion 2 is formed between a superimposed front side film 1a and back side film 1b.
The front side film 1a and the back side film 1b are composed of a laminate film composed of a heat-sealable sealant layer and a base layer. It is also possible to provide a print layer and an adhesive layer.

Various materials and structures can be adopted for the front side film 1a and the back side film 1b as long as they can be heat-sealed. Examples thereof include thermoplastic resins such as polyolefins such as nylon, linear polyethylene, low-density polyethylene, high-density polyethylene and polypropylene, and polyesters such as polyethylene terephthalate. Moreover, the front side film 1a and the back side film 1b can include an aluminum vapor deposition film and various vapor deposition films which are barrier films, or an aluminum laminate film. In addition, these plastic films can be composed of a single layer or a laminate of two or more kinds, which can be appropriately selected according to the liquid content.

Seal portions are formed at the edges of the front side film 1a and the back side film 1b. As the seal portion, two opposing side seal portions 3 and 4, which seal the front side film 1a and the back side film 1b, a top seal portion 5, and a bottom gusset portion 6 with the front side film 1a and the back side film 1b. A sealed bottom seal portion 7 is formed.

In the refill pouch 1, the corner portion where the side seal portion 3 and the top seal portion 5 of one of the two side seal portions 3 and 4 meet is obliquely cut off, and the corner portion between the side seal portion 3 and the top seal portion 5 is cut off. An inclined seal portion 8 is formed to connect the .

The inclined seal portion 8 is attached with a cylinder mouth portion 9 for pouring out the content liquid when the content liquid contained in the container portion 2 is refilled into another container. The cylinder mouth portion 9 is arranged so that its inner side opening 91 is positioned at the inner edge 8 b of the inclined seal portion 8 .
1 shows the tube mouth portion 9 with the screw cap 9a screwed thereon, and FIG. 2 shows the tube mouth portion 9 with the screw cap 9a removed.

Here, with reference to FIG. 2, the mounting angle of the mouth portion 9 of the refill pouch 1 will be described. In the refill pouch 10 of the present embodiment, when the refill pouch 10 is tilted toward the cylindrical mouth portion 9 until the liquid surface cf of the content liquid C before refilling contacts the lower end 91a of the inner opening 91 of the cylindrical mouth portion 9, The mounting angle of the tube opening 9 is set so that the lower end 92a of the outer opening 92 of the tube opening 9 is lower than the lower end 91a of the inner opening 91 .
In other words, when the refill pouch 10 is tilted until just before the content liquid C is poured out at the time of the first refilling, the axis O of the cylinder mouth portion 9 faces downward with respect to the liquid level cf of the content liquid C. . In FIG. 2, this angle is represented by θc. That is, when the refill pouch 100 is tilted until the height of the liquid surface cf of the content liquid C becomes substantially the same as the height of the lower end portion 91a of the inner side opening 91 of the mouth portion 9, the outside of the mouth portion 109 A side opening 192 faces downward from the horizontal.

This prevents the content liquid C from jumping upward at the moment when the content liquid C starts to pour out from the tube mouth portion 9, making it difficult to spill the content liquid C at the start of pouring. In addition, since the mouth portion 9 faces downward from the horizontal at the beginning of pouring, it is easy to insert the mouth portion 9 into the mouth portion of the shape-retaining container to be refilled, and as a result, it is difficult to spill the content liquid at the beginning of pouring. can do.
In particular, in the present embodiment, since the tube mouth portion 9 is directed downward from the horizontal just before pouring out, the inside of the tube mouth portion 9 is not filled with the content liquid C at the start of pouring out, and the air in the container portion 2 is A communicates with the air outside the refill pouch 10 . As a result, at the start of pouring, the content liquid C flowing out from the tube opening 9 and the air entering the tube opening 9 from the outside smoothly flow through the tube opening 9 . That is, at the start of pouring, the content liquid C flows through the lower side of the tube mouth portion 9 and the air flows through the upper side of the tube mouth portion 9 . As a result, it is possible to prevent the content liquid C from being pushed out from the cylinder mouth portion 9 by the entering air at the start of pouring, and to prevent the content liquid C from rushing out.

The attachment angle of the cylinder mouth portion 9 is determined by the height of the liquid surface cf of the content liquid C filled in the refill pouch 10 . Therefore, the larger the amount of the content liquid C filled in the refill pouch 10, the more the mounting angle of the cylinder mouth portion 9, for example, the vertical line when the refill pouch 10 is placed without tilting, the side seal portion 3. It is necessary to set a large angle θa between the imaginary extension line L1 of the outer edge 3a of the cylinder and the axis O of the cylinder mouth portion 9 .
Further, when the height of the liquid surface cf of the content liquid C when the refill pouch 10 is not tilted is close to the height of the lower end portion 91a of the inner opening 91 of the cylindrical mouth portion 9, The pouch 10 is often set to have a greater angle of inclination with respect to the horizontal than the installation angle of the mouth portion 109 of the conventional refill pouch 100 shown in FIGS. 1 and 2 .
The height of the liquid surface cf of the content liquid C when the refill pouch 10 is not tilted is preferably lower than the height of the lower end portion 91 a of the inner opening 91 of the cylinder mouth portion 9 .

In addition, as shown in FIG. 1, the cylinder mouth portion 9 of the refill pouch 10 of the present embodiment has an imaginary extension line L1 of the outer edge 3a of the side seal portion 3 and an imaginary extension line L2 of the outer edge 5a of the top seal portion 5. , and the outer edge 8 a of the inclined seal portion 8 . Furthermore, it is more preferable that the tube mouth portion 9 with the screw cap 9a attached thereto fits within the above-described enclosed area.
As a result, even if the attachment angle of the tube opening 9 is different from that of the conventional one, the tube opening 9 does not become an obstacle. As a result, the refill pouches 10 can be efficiently packed and displayed in the same manner as conventional ones.

1, the larger the angle θa between the imaginary extension line L1 of the outer edge 3a of the side seal portion 3 and the axis O of the cylinder mouth portion 9, the greater the angle θa formed by the cylinder mouth portion 9. It is necessary to reduce the inclination angle θb of the outer edge 3a of the portion 3 .
However, the corner where the side seal portion 3 and the top seal portion 5 meet is cut off as the inclination angle θb is decreased while the cylinder mouth portion 9 is accommodated inside the imaginary extension lines L1 and L2. Therefore, the inclination angle θb is preferably 10° or more in order to prevent the refill pouch 10 from having a smaller capacity due to the cut corner becoming too large.

In this embodiment, the side seal portions 3 and 4 and the top seal portion 5 have a belt-like constant width. Therefore, the outer edge 3a and the inner edge 3b of the side seal portion 3 are parallel, the outer edge 4a and the inner edge 4b of the side seal portion 4 are also parallel, and the outer edge 5a and the inner edge of the top seal portion 5 are also parallel. Further, the outer edge 8a and the inner edge 8b of the inclined seal portion 8 are also parallel.

Further, the wider the width of the refill pouch 10, the greater the vertical fluctuation range of the liquid level cf of the content liquid C near the mouth portion 9 when the inclination of the refill pouch 10 is changed. When pouring the content liquid C from the cylinder mouth part 9, the content liquid C is likely to come out vigorously.
Therefore, the distance W between the two opposing side seal portions 3 and 4, that is, the distance W from the inner edge 3b of one side seal portion 3 to the inner edge 4b of the other side seal portion 4, shown in FIG. The following are preferable. By setting the distance W to 250 mm or less, it is possible to further prevent the content liquid from jumping out and spilling when the container is refilled.

In addition, when the content liquid C is a liquid having a viscosity of 1 to 200 mPa·s, which feels almost the same as that of water when poured out, the content liquid C has a viscosity of several thousand mPa·s or more like a shampoo or rinse. It is easier to pop out when refilling than when it is a liquid with a viscosity of . For this reason, the present invention is more suitable for refilling with a content liquid C having a low viscosity of 1 to 200 mPa s, which is similar to the viscosity of water, such as a synthetic bathroom detergent or a liquid deodorant. .

In addition, a large-capacity refill pouch that contains more than twice the volume of the shape-retaining container as the refill content liquid for multiple refills is heavy, and when you lift it, it slips from your fingers. It is not easy to refill the content liquid. Therefore, the present invention is suitably applied to a refill pouch having a capacity of 400 to 4000 mL, which is a large capacity.

An embodiment of the invention will now be described. The conditions of the pouch and the content liquid used in this example are as follows.
Pouch size: width 160 x length 270 (width of each side seal: 5 mm)
Mouth tube (spout): inner diameter 8.5 mm, length: 21 mm
Content liquid C: Water (viscosity: about 1 mPa s)
Contents: 950g
Inside diameter of refill bottle opening: 20mm

In this embodiment, various angles of depression from the horizontal to the downward direction of the mouth tube portion when the content liquid first starts to flow out are set. The angle of depression at this time is substantially the same as the angle of depression when the refill pouch is tilted until the liquid surface of the content liquid before refilling comes into contact with the lower end of the inner opening of the cylinder mouth.
Then, it was determined whether or not the content liquid was refilled without spilling into the refill destination bottle according to the downward depression angle of the mouthpiece portion when the content liquid started to be poured out. Judgment was scored according to the following criteria, taking the average of 8 people, ×: less than 2 points, △: 2 points or more and less than 3 points, ○: 3 points or more.
5 points: I hardly feel anxiety about spilling.
4 points: There is not much anxiety about spilling. I feel like I spilled something very carelessly.
3 points: If it is poured carefully, it will not spill. I have a feeling it will spill if I'm not careful.
2 points: It is felt that it does not spill if it is poured very carefully.
1 point: actually spilled.
Table 1 shows the results.

From Table 1, it can be seen that if the depression angle of the mouthpiece portion downward from the horizontal is 3° or more when the content liquid starts to pour out, it can be refilled without spilling if considerable care is taken when refilling the content liquid. I understand. Furthermore, when the depression angle is 10° or more, it can be seen that the content liquid can be refilled without spilling, whether careful or not.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the present invention. In the above-described embodiment, an example in which the inclined seal portion 8 is formed in a strip-like linear shape has been described. or a combination of straight lines and curved lines.

INDUSTRIAL APPLICABILITY The packaging bag according to the present invention is suitable for use as a refill container used for chemicals such as detergents and foods such as seasonings.

1a Front side film 1b Back side film 2 Storage part 3, 4 Side seal part 3a, 4a Outer edge of side seal part 3b, 4b Inner edge of side seal part 5 Top seal part 6 Gusset part 7 Bottom seal part 8 Inclined seal part 8a Inclined seal part Outer edge of 8b Inner edge of inclined seal portion 9 Cylinder mouth (spout)
9a screw cap 10 refill pouch 91 internal opening of cylinder mouth 91a lower end of internal opening of cylinder mouth 92 external opening of cylinder mouth 92a lower end of external opening of cylinder mouth A air C content liquid cf content liquid Liquid level O Axis of cylinder mouth W Distance between inner edges of side seals

Claims (7)

a housing portion formed between the superimposed front side film and back side film;
a seal portion formed at the edges of the front side film and the back side film;
a tube mouth portion attached for pouring out the content liquid when refilling the content liquid stored in the storage portion into another container;
A refill pouch comprising the content liquid contained in the container ,
The storage unit has a capacity of 400 to 4000 mL,
The seal portion includes two side seal portions facing each other, a top seal portion, and one of the two side seal portions and the one side seal portion communicating between the top seal portion and the one side seal portion. a slanted seal portion slanted with respect to the
The cylinder mouth portion is attached to the inclined seal portion so that the axis of the cylinder mouth portion is inclined with respect to the outer edge of the side seal portion,
Before the first refilling, the liquid level of the content liquid when the refill pouch is not tilted is lower than the height of the lower end of the inner opening of the cylinder mouth, and before the first refilling, When the refill pouch is tilted toward the cylinder mouth portion until the liquid surface of the content liquid contacts the lower end portion of the inner opening of the cylinder mouth portion, the lower end portion of the outer opening of the cylinder mouth portion reaches the inner side. A refill pouch, characterized in that the cylindrical opening is attached so as to be lower than the lower end of the opening. 2. The refillable pouch according to claim 1, wherein the depression angle of the mouth tube portion when the content liquid starts to pour out is 10[deg.] or more. The cylinder mouth portion is arranged so that the cylinder mouth portion fits in a region surrounded by an imaginary extension line of the outer edge of the side seal portion, an imaginary extension line of the outer edge of the top seal portion, and the outer edge of the inclined seal portion. 3. The refill pouch according to claim 1, wherein the refill pouch is attached to the inclined seal portion. 4. The refill pouch according to claim 3, wherein the outer edge of said inclined seal portion has an inclination angle of 10[deg.] or more with respect to the outer edge of said one side seal portion. 5. The refill pouch according to claim 3, wherein said two opposing side seal portions have an interval of 250 mm or less. The refill pouch according to any one of claims 1 to 5, wherein the content liquid has a viscosity of 1 to 200 mPa·s. a housing portion formed between the superimposed front side film and back side film;
a seal portion formed at the edges of the front side film and the back side film;
a tube mouth portion attached for pouring out the content liquid when refilling the content liquid stored in the storage portion into another container;
A method for setting an attachment angle of the cylinder mouth portion of a refill pouch comprising the liquid contained in the containing portion ,
The storage unit has a capacity of 400 to 4000 mL,
The seal portion includes two side seal portions facing each other, a top seal portion, and one of the two side seal portions and the one side seal portion communicating between the top seal portion and the one side seal portion. a slanted seal portion slanted with respect to the
The cylinder mouth portion is attached to the inclined seal portion so that the axis of the cylinder mouth portion is inclined with respect to the outer edge of the side seal portion,
Before the first refilling, the liquid level of the content liquid when the refill pouch is not tilted is lower than the height of the lower end of the inner opening of the cylinder mouth, and before the first refilling, When the refill pouch is tilted toward the cylinder mouth portion until the liquid surface of the content liquid contacts the lower end portion of the inner opening of the cylinder mouth portion, the lower end portion of the outer opening of the cylinder mouth portion reaches the inner side. A method for setting an attachment angle of the mouth portion of a refill pouch, wherein the attachment angle of the mouth portion is set so as to be lower than the lower end of the opening.

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