JP2020200056A - Pouch intermediate, pouch filling method, and pouch - Google Patents

Abstract

To provide a pouch intermediate, a pouch filling method, and a pouch which realize smooth filling, while securing a degree of freedom of the design of a position, a size, etc. of a filling opening part.SOLUTION: In a pouch intermediate 11, a seal part 22 for making a pouch is formed at a portion other than a seal scheduled part 23 which functions as a filling opening part 24. A through slit 71 which penetrates each film 30, 40 in the front-rear direction, and a handling piece part 72 sectioned from a peripheral portion by the through slit 71 are formed, in each film 30, 40 located in the seal scheduled part 23. In each handling piece part 72, a part of its outer edge is connected to the peripheral portion by a breakage scheduled bridge 73.SELECTED DRAWING: Figure 5

Description

The present invention relates to pouch intermediates, pouch filling methods, and pouches.

Conventionally, as a container for accommodating fluid contents such as liquid detergent, a pouch made by heat-welding a plurality of films is generally used (see, for example, Patent Document 1).

In such a pouch, it is known that a handle hole for passing a user's finger is formed in a seal portion for bag making in order to improve the ease of holding the pouch. However, when the pouch is lifted by passing the user's finger through such a handle hole, depending on the weight of the contents, the user's finger may feel pain at the edge of the handle hole when the pouch is lifted.

Therefore, as one method for avoiding the above-mentioned problem, as shown in FIG. 6, the pouch is configured so that a handle portion 172 whose outer edge is partially connected to the peripheral portion by the bent connecting portion 174 remains. It is conceivable to form a through slit 171 in the film to be formed, and with such a configuration, when the pouch 10 is lifted, the user's finger touches each of the bent films 130 and 140 in the vicinity of the bending connecting portion 174. Therefore, it is possible to avoid causing the user's finger to feel pain.

Japanese Unexamined Patent Publication No. 2015-040057

However, in the pouch as shown in FIG. 6, when the contents are filled from the position where the handle piece 172 is formed, the contents are formed on the films 130 and 140 as shown in FIG. Each handle piece 172 turned inward and interfered with the filling nozzle N and the content liquid, which hindered smooth filling of the contents, and the contents adhered to the handle piece 172. In this case, the heat welding of the handle pieces 172 of the films 130 and 140, which are performed after filling, may be hindered.

Further, as one method for avoiding interference of the filling nozzle N or the like with the handle piece 172 as described above, a filling opening is formed by avoiding the portion where the handle piece 172 is formed. It is conceivable to fill the contents through the filling opening, but in this case, another problem arises in which the degree of freedom in design such as the formation position and size of the filling opening is impaired.

Further, as another method for avoiding interference of the filling nozzle N or the like with the handle piece 172 as described above, the contents are filled in the pouch intermediate that does not form the through slit 171 or the handle piece 172. After closing the filling opening by heat welding, it is also conceivable to perform a process of forming a through slit 171 and a handle piece 172 on the bag-making seal part. However, in this case, since it is necessary to install a cut unit for processing the through slit 171 in the filling line, the equipment cost increases and the filling line is formed by the cut residue generated when the through slit 171 is formed. Another problem arises that it can be contaminated.

Therefore, the present invention solves these problems, and is a pouch intermediate that realizes smooth filling with a simple structure while ensuring design freedom such as the position and size of the filling opening. , A pouch filling method, and a pouch is intended to be provided.

The pouch intermediate of the present invention is a pouch intermediate in which a seal portion for bag making is formed at a portion other than the planned seal portion that functions as a filling opening, and each film located at the planned seal portion includes a pouch intermediate. A through slit penetrating in the front and back directions of each film and a handle piece portion partitioned from the peripheral portion by the through slit are formed, and a part of the outer edge of each handle piece portion is formed by a bridge to be broken. By connecting to the peripheral part, the above-mentioned problem is solved.
The pouch filling method of the present invention is a pouch filling method for filling a pouch with contents, and after filling the contents from the filling opening of the pouch intermediate, the films are heat-welded at the planned seal portion. By doing so, the problem is solved by closing the filling opening.
The pouch of the present invention is a pouch in which a seal portion for bag making is formed so as to seal the contents accommodating portion, and each film located in the seal portion penetrates in the front and back directions of each film. A through slit and a handle portion partitioned from the peripheral portion by the through slit are formed, and a part of the outer edge of each handle portion is connected to the peripheral portion by at least one planned breakage bridge. At least one of the plurality of handle pieces is heat-welded with respect to the other handle pieces in a state of being displaced in the film plane direction, thereby solving the above-mentioned problem. is there.

According to the inventions according to claims 1, 5 and 6, in the state of the pouch intermediate before filling the contents, the handle piece partitioned from the peripheral portion by the through slit is the outer edge thereof by the bridge to be broken. Since a part of the handle is connected to the peripheral part, it is possible to prevent the handle piece from being turned over when filling the contents. Therefore, the position and size of the filling opening, etc. Smooth filling can be achieved while ensuring the degree of freedom in design.

According to the third aspect of the present invention, since the through slit formed on the outer edge of the handle portion is a wide slit, each film located at the planned sealing portion is heat-welded after filling with the content liquid. At that time, even if a slight misalignment occurs between the handle pieces in the pouch plane direction, it is possible to prevent the through slits of each film from being blocked by the molten resin.
According to the fourth aspect of the present invention, both ends of the through slit are formed so as to extend inward of the handle piece, so that the user's finger is passed through the hole defined by the through slit. Even when the pouch is lifted, stress is less likely to be applied to the tips of both ends of the through slit, so that it is possible to prevent the film from breaking due to the both ends of the through slit being kicked.

The perspective view which shows the pouch which concerns on one Embodiment of this invention. The perspective view which shows the state which the one part for a handle is bent. A cross-sectional view showing a state in which one part for a handle is bent. Explanatory drawing which shows the pouch in a plan view. Explanatory drawing which shows the pouch intermediate in a plan view. Explanatory drawing which shows the pouch of a reference example. In the pouch of the reference example, an explanatory view showing a state in which one part for the handle is turned up inside the pouch.

The pouch 10 according to the embodiment of the present invention will be described below with reference to the drawings.

The pouch 10 contains a fluid content such as a liquid detergent, and as shown in FIG. 1, a pouch body 20 formed in a bag shape from a flexible resin film and a pouch. It is configured as a pouch with a spout, which is composed of a spout 60 attached to the main body 20.

As shown in FIG. 1, the pouch body 20 is configured as a so-called horizontal gusset type pouch having gussets formed on both the left and right sides, and the front side film 30 and the back side film 40 are arranged so as to seal the content accommodating portion 21. It is formed in a bag shape by forming a bag-making seal portion 22 by heat-welding a pair of gusset film 50s.

As shown in FIGS. 1 and 4, the seal portion 22 includes a top seal portion 22a in which the films 30, 40, and 50 are heat-welded on the top side of the pouch body 20, and the films 30 on both the left and right sides of the pouch body 20. It has left and right side seal portions 22b in which 40 and 50 are heat-welded, and a bottom seal portion 22c in which the films 30, 40 and 50 are heat-welded on the bottom side of the pouch body 20.
Specifically, in the top seal portion 22a and the bottom seal portion 22c, the front side film 30 and the back side film 40, the front side film 30 and the gusset portion film 50, and the back side are arranged so as to face each other. The film 40 and the gusset film 50 are heat-welded, and in the side seal portion 22b, between the front side film 30 and the gusset film 50, the back side film 40 and the gusset are arranged so as to face each other. The part film 50 is heat-welded.
Even in the region where the gusset film 50 is arranged between the front side film 30 and the back side film 40, the front side film 30 and the back side film can be partially removed by partially removing the gusset portion film 50 at an arbitrary position. The inner surfaces of the gusset film 50 folded in half at an arbitrary position may be partially heat-welded to each other.
Further, in FIGS. 1 to 3, the pouch 10 with the contents contained is shown, but in FIG. 4, the pouch 10 without the contents is shown in order to facilitate understanding of the configuration of each part. showed that.

Each of the films 30, 40, and 50 is formed as a rectangular (or substantially rectangular) resin film having a heat welding layer on at least one side thereof, so that the heat welding layers face each other at a portion where they are heat welded to each other. It is located in.
As shown in FIG. 4, each gusset film 50 is folded in half between the front side film 30 and the back side film 40 with its crease line 51 facing inward in the left-right direction on both the left and right sides of the pouch body 20. It is arranged in.

As shown in FIGS. 1 to 4, a handle portion 70 for the user to lift the pouch 10 through the hand or finger is formed in the region where the front side film 30 and the back side film 40 are heat-welded in the top seal portion 22a. There is.

As shown in FIGS. 1 to 4, the handle portion 70 is formed by forming through slits 71 penetrating in the front and back directions in the films 30 and 40, and the user's finger is passed through the holes defined by the through slits 71. You can do it.
In the present embodiment, as shown in FIG. 4, the through slit 71 is formed as a wide slit having a width in a direction orthogonal to the extending direction thereof.

As shown in FIG. 4, each film 30 and 40 is formed with a handle portion 72 partitioned from a peripheral portion by a through slit 71 (in other words, located inside the pouch plane direction of the through slit 71). ing.
As shown in FIG. 4, a part of the outer edge of each handle portion 72 is connected to a peripheral portion by a bending connecting portion 74.
As shown in FIG. 4, the bending connecting portion 74 is formed on the outer edge of the handle piece portion 72, which is located on the outer side of the pouch (upper side in the case of the present embodiment). As a result, when the pouch 10 is lifted using the handle portion 70, the user's fingers come into contact with the films 30 and 40 bent in the vicinity of the bending connecting portion 74, so that the user's fingers feel pain. It can be avoided.

As shown in FIG. 4, each of the handle pieces 72 formed on the films 30 and 40 has at least one place (three places in the present embodiment) other than the bending connecting part 74, and a part of the outer edge thereof. It is connected to the peripheral part by the bridge 73 scheduled to break.
The bridge 73 to be broken is a portion that is broken by the user when the user passes a finger through the hole of the handle portion 70. In the present embodiment, as shown in FIG. 4, the outer edge of the handle portion 72 Of these, it is formed in a portion located inside the pouch (lower side in the case of this embodiment).

As shown in FIG. 4, the through slit 71 has an overall shape lacking a part of an annular shape when viewed in a plan view in the front-back direction.
Further, as shown in FIG. 4, both end portions 71a of the through slit 71 are formed to be curved so as to extend toward the inside (lower side in the present embodiment) of the handle piece portion 72. As a result, as shown in FIG. 2, when the films 30 and 40 are bent and the pouch 10 is lifted in the vicinity of the bending connecting portion 74, stress is less likely to be applied to the tips of both end portions 71a of the through slit 71. It is possible to prevent the film from being broken by using both ends 71a of the 71 as a kick.

The spout 60 is formed of a synthetic resin or the like, and is attached to the pouch body 20 to function as a spout for the contents.
In this embodiment, the spout 60 is attached to the front film 30 by heat welding, as shown in FIG.

Next, the pouch intermediate 11 in this embodiment will be described below with reference to the drawings. Here, since the pouch intermediate 11 is the same as the pouch 10 described above except for a partial configuration, the description thereof will be omitted for the configurations other than the differences.

As shown in FIG. 5, the pouch intermediate 11 is formed with a bag-making seal portion 22 formed at a portion other than the planned seal portion 23. The planned seal portion 23 is a region to be heat-welded after filling the contents, and at least a part thereof functions as a filling opening 24.

Specifically, in the state of the pouch intermediate 11, as shown in FIG. 5, the side seal portion 22b and the bottom seal portion 22c are formed among the seal portions 22 for bag making, and the top seal portion 22a is provided. Not formed. Then, in the present embodiment, the portion where the top seal portion 22a is scheduled to be formed becomes the seal scheduled portion 23.

As shown in FIG. 5, the films 30 and 40 located at the planned seal portion 23 are formed with a through slit 71 and a handle piece portion 72 partitioned from the peripheral portion by the through slit 71 of each of the films 30 and 40, respectively. Has been done.

Next, the pouch filling method in this embodiment will be described below.

First, the pouch intermediate 11 shown in FIG. 5 is prepared.
The timing of forming the through slits 71 in the films 30 and 40 is summarized in the films 30 and 40 after the pouch intermediate 11 is made into a bag (after the side seal portion 22b and the bottom seal portion 22c are formed). The through slit 71 may be formed individually in each of the films 30 and 40 before the pouch intermediate 11 is made into a bag.

Next, a filling nozzle (not shown) is inserted through the filling opening 24 of the pouch intermediate 11, and the content accommodating portion 21 of the pouch intermediate 11 is filled with contents such as liquid detergent.
At this time, since each handle piece 72 formed on the films 30 and 40 is connected to the peripheral portion by the bridge 73 scheduled to be broken, it is possible to prevent each handle piece 72 from being turned inside the pouch. it can.
At this time, the contents may be filled without inserting a filling nozzle (not shown) into the pouch intermediate 11.

Next, the films 30, 40, and 50 located at the planned seal portion 23 are heat-welded to form the top seal portion 22a to close the filling opening 24 and seal the contents in the contents accommodating portion 21.

Here, when the films 30, 40, and 50 located at the planned seal portion 23 are heat-welded, a misalignment may occur between the films 30, 40, and 50 in the film plane direction.
When a misalignment occurs between the films 30, 40, and 50 in the film plane direction, one of the handle pieces 72 of the films 30 and 40 (the through slit 71 and the handle piece portion at the position where three or more films overlap). When 72 is formed, at least one of the plurality of handle pieces 72 is formed, while the other (when the through slit 71 and the handle piece 72 are formed at a position where three or more films overlap each other), the other. The film is heat-welded to the handle piece 72) in a state of being displaced in the plane direction of the film. At this time, if the through slit 71 is a wide slit having a width in a direction orthogonal to the extending direction, the through slit 71 of each film is blocked by the molten resin, allowing the film to be displaced. It is possible to prevent it from being lost.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments, and various design changes can be made without departing from the present invention described in the claims. It is possible.

For example, the pouch 10 and the pouch intermediate 11 may be formed by arbitrarily combining the configurations of the embodiments and modifications described in the present specification.
Regarding the specific aspects of the films 30 to 50 constituting the pouch body 20, a heat-weldable layer such as an olefin-based film of low-density polyethylene or polypropylene or a polyester-based film such as PET (polyethylene terephthalate) is provided on at least one side. Any layer may be laminated on the single film of the heat-welded layer or the heat-welded layer as long as it has. Any material may be used to form the laminate, and any material may be arbitrarily formed by laminating known polyesters such as PET and PBT (polybutylene terephthalate), polypropylene, polyamide, polyethylene, aluminum foil and the like.

Further, in the above-described embodiment, the pouch 10 is described as a pouch with a spout equipped with the spout 60, but the spout 60 may not be provided.
Further, in the above-described embodiment, the pouch body 20 has been described as being formed as a so-called horizontal gusset type pouch having gussets formed on both the left and right sides, but the specific embodiment of the pouch body 20 is limited to the above. However, for example, a so-called standing pouch having a gusset portion on the bottom side, a so-called flat pouch having no gusset portion formed, or the like may be used.
In this specification, terms such as "top", "bottom", "left and right sides", "top seal", "side seal", and "bottom seal" are used to indicate top, bottom, left, and right. , The direction of installation of the pouch 10 during use, display, transportation, etc. is not limited.

Further, in the above-described embodiment, in the state of the pouch intermediate 11, the portion corresponding to the top seal portion 22a is the planned seal portion 23 (filling opening 24) which is a region to be heat-welded after filling the contents. However, the specific position of the planned seal portion 23 (filling opening 24) is not limited to the above, and is, for example, a portion corresponding to the side seal portion 22b or a portion corresponding to the bottom seal portion 22c. There may be.
Further, in the above-described embodiment, the through slit 71 and the handle portion 72 are formed at the positions where the two films (front side film 30 and back side film 40) are overlapped in the state of the pouch intermediate 11. As described above, a through slit 71 or a handle piece 72 may be formed at a position where three or more films are stacked.
Further, in the above-described embodiment, the through slit 71 has the gripping piece portion 72 formed in a horizontally long track shape, but the shape is not limited to this. For example, it may be circular or elliptical.
Further, in the above-described embodiment, it has been described that the through slit 71 is formed as a wide slit having a width in a direction orthogonal to the extending direction thereof, but the through slit 71 has a width. It may be formed as a non-slit, i.e. a notch.
Further, in the above-described embodiment, the gripping piece portion 72 is connected to the peripheral portion by the bending connecting portion 74, but the bending connecting portion 74 may not be provided. That is, the through slit 71 is formed in an annular shape, at least one (preferably a plurality) planned breakage bridges 73 are provided in the middle thereof, and after filling and sealing, the planned breakage bridge 73 is broken and the handle piece 72 is pouched. It may be possible to completely separate it from the main body 20. When the gripping piece 72 has a circular shape, for example, three bridges 73 scheduled to be broken may be provided, and each may be provided at a circular position at 120 degree intervals. Alternatively, four may be provided and each may be provided at a circular position at 90 degree intervals.
Further, in the above-described embodiment, the width of the bending connecting portion 74 is considerably larger than the width of the bridge 73 to be broken, but is slightly wider than the width of the bridge 73 to be broken (for example, the bridge 73 to be broken). A connecting portion having a width (a width of about twice the width of the above) may be used.
Further, in the above-described embodiment, the bending connecting portion 74 is provided at one place, but there may be a plurality of bending connecting portions 74.

10 ・ ・ ・ Pouch 11 ・ ・ ・ Pouch intermediate 20 ・ ・ ・ Pouch body 21 ・ ・ ・ Contents storage part 22 ・ ・ ・ Seal part 22a ・ ・ ・ Top seal part 22b ・ ・ ・ Side seal part 22c ・ ・ ・Bottom seal part 23 ・ ・ ・ Seal planned part 24 ・ ・ ・ Filling opening 30 ・ ・ ・ Front side film 40 ・ ・ ・ Back side film 50 ・ ・ ・ Machi part film 60 ・ ・ ・ Spout 70 ・ ・ ・ Handle part 71 ・・ ・ Through slit 71a ・ ・ ・ End of through slit 72 ・ ・ ・ One part for handle 73 ・ ・ ・ Bridge to be broken 74 ・ ・ ・ Connecting part for bending

Claims (7)

A pouch intermediate in which a seal portion for bag making is formed in a portion other than the planned seal portion that functions as a filling opening.
Each film located at the planned seal portion is formed with a through slit penetrating in the front and back directions of each film, and a handle portion partitioned from the peripheral portion by the through slit.
Each of the handle portions is a pouch intermediate characterized in that a part of the outer edge thereof is connected to a peripheral portion by a bridge to be broken. The pouch intermediate according to claim 1, wherein a part of the outer edge of each handle portion is connected to a peripheral portion by a bending connecting portion. The pouch intermediate according to claim 1 or 2, wherein the through slit is a wide slit having a width in a direction orthogonal to the extending direction thereof. A part of the outer edge of each handle portion is connected to the peripheral portion by a bending connecting portion.
The bending connecting portion is formed on a portion of the outer edge of the handle portion located on the outside of the pouch.
The pouch intermediate according to any one of claims 1 to 3, wherein both ends of the through slit are formed so as to extend inward of the handle piece. It is a pouch filling method that fills the pouch with the contents.
After filling the contents from the filling opening of the pouch intermediate according to any one of claims 1 to 4, the filling opening is closed by heat-welding each film at the planned sealing portion. A pouch filling method characterized by the fact that. A pouch in which a bag-making seal is formed so as to seal the contents accommodating portion.
Each film located in the seal portion is formed with a through slit penetrating in the front and back directions of each film and a handle portion partitioned from the peripheral portion by the through slit.
A part of the outer edge of each handle piece is connected to the peripheral part by at least one bridge to be broken.
A pouch characterized in that at least one of the plurality of handle pieces is heat-welded with respect to the other handle pieces in a state of being displaced in the film plane direction. The pouch according to claim 6, wherein a part of the outer edge of each handle portion is connected to a peripheral portion by a bending connecting portion.