JP2022069914A - Bag-in carton - Google Patents

Abstract

To provide a bag-in carton easy to grip a carton and is not likely to cause breaking from a gripping part of the carton when gripping a left surface plate and a right surface plate of the carton of the bag-in carton to pour the content out.SOLUTION: A carton is constituted by at least a top plate, a bottom plate, a front side body part, a left surface plate and a right surface plate, and a rear side body part. A bag has a spout enabling taking-out a content. On the left surface plate and the right surface plate of the carton, arc-shaped perforations are provided at symmetrical positions. Ruled lines reaching the arc-shaped perforations are radially provided from one point on an inner side of the arc-shape, and two or more ruled lines are provided while at least two ruled lines are connected to one end and the other end of the arc-shaped perforations. The arc-shaped perforations can be torn in the arc-shape, and the ruled lines can be pushed-in from outside of the carton, in a bag-in carton.SELECTED DRAWING: Figure 1

Description

The present invention relates to a bag-in-carton. A bag-in-carton is a double container, the outside of which is a paper container, and the inside of which is a plastic film-based bag (inner bag), and has a spout. It can be used as a liquid container.

In recent lifestyles, in the distribution and sale of liquid products such as beverages, alcoholic beverages, and seasonings, many liquid containers using plastic films and products using liquid paper containers are produced, distributed, sold, and consumed. It has been delivered to the person.

For example, beverages such as juices, milk beverages, and liquors are often filled in a liquid container such as a bottle, a plastic bottle, or a liquid paper container by a liquid filling device at a manufacturer and sent out as a commercial product.

Among them, the bag-in-carton is a double container in which an inner bag called a bag made of a plastic film is filled with a liquid and then spouted and stored in a paper box such as a cardboard box.

In the case of such a double container, since the outside is a paper container such as cardboard, it can be made into a rectangular parallelepiped or cube shape, so that it is possible to improve inventory efficiency and transportation efficiency in warehouses and the like. It is possible.

In addition, the outer paper container can enhance mechanical strength such as impact resistance and block the influence of the environment such as ultraviolet rays. In addition, the outer paper container can be easily decorated on the surface such as printing, and the outer paper box is more convenient to carry and easier to handle than the plastic container as it is.

In addition, since the inside is a bag (inner bag) based on a plastic film, it is suitable for storing liquids, and the required amount can be poured out each time by opening and closing the spout.

Furthermore, when disposing of used bag-in-cartons, it is easy to separate the paper container from the plastic film-based bag (inner bag), the volume can be reduced, and it is an environment-friendly liquid. It has become widely accepted as a container.

In the case of such a bag-in-carton that can store liquid, the spout attached to the inner bag can be taken out when necessary by protruding outward from the outer paper container and exposing it. , Can be done more conveniently.

However, when trying to take out the liquid of the contents, it is common to grasp the opened bag-in-carton by hand, tilt it, and pour it out. At that time, the weight of the carton caused the carton to be dented in the part held by hand, which made it difficult to hold and sometimes hindered the pouring work.

On the other hand, in Patent Document 1, perforations are made in the left side plate and the right side surface plate of the carton of the bag-in-carton, and the area partitioned by the perforations is pushed in to form an opening, and this portion is used as a handle. Although a proposal has been made, in this method, the load is concentrated on the cross section of the carton at the opening, and the carton may be torn from the opening, making it difficult to grasp the bag-in-carton and pour out the contents. was there.

Japanese Unexamined Patent Publication No. 5-229571

The present invention has been made in view of this situation, and when the left side plate and the right side surface plate of the carton of the bag-in carton are gripped and the contents are poured out, the carton can be easily gripped and the carton is easily gripped from the gripped portion of the carton. The challenge is to provide a bag-in-carton that does not have the risk of tearing.

The invention according to claim 1 is a means for solving the above problems.
A double-container bag-in-carton consisting of an outer box and an inner bag.
The outer box is a carton that uses paper as a base material to store the inner bag.
The carton consists of at least a top plate, a bottom plate, a front fuselage, a left face plate, a right face plate, and a rear fuselage.
The inner bag is a bag that can store the contents using a plastic film as a base material.
The bag has a spout that allows the contents to be taken out, and this spout is fixed to the carton.
The left and right face plates of the carton are provided with arcuate perforations at symmetrical positions.
A ruled line that reaches the arc-shaped perforation is provided radially from one point inside the arc.
At least two ruled lines are connected to one end and the other end of the arcuate perforation, and two or more ruled lines are provided.
The arc-shaped perforations can be torn in an arc along the perforations.
The ruled line is a bag-in-carton characterized in that it can be pushed in from the outside of the carton.

Further, the invention according to claim 2 is based on the invention.
The arcuate perforations have one end on the ridge between the carton's left and right side plates and the rear fuselage, and one point inside the arc is also the carton's left and right side plates. It is a bag-in-carton characterized by being located on the ridgeline between the rear torso.

According to the present invention, when the left side plate and the right side surface plate of the carton of the bag-in carton are gripped and the contents are poured out, the carton is easily gripped and there is no possibility that the carton is torn from the gripped portion. , It is possible to provide a bag-in-carton.

In particular, according to the second aspect of the present invention, it is possible to provide a bag-in-carton that is easier to grip the carton and is not likely to be torn from the gripped portion of the carton.

FIG. 1 is a schematic plan view of a carton blank for explaining an embodiment of a bag-in-carton according to the present invention. FIG. 2 is a schematic perspective view (partially perspective view) in a state where a bag is stored for explaining an embodiment of a bag-in-carton according to the present invention.

Hereinafter, the present invention will be described in more detail with reference to FIGS. 1 and 2. However, the present invention is not limited to the examples shown here. The present invention is specified by the claims.

FIG. 1 is a schematic plan view of a carton blank for explaining an embodiment of a bag-in-carton according to the present invention.

The present invention is a double-container bag-in-carton composed of an outer box and an inner bag, of which the outer box is a carton (1) for storing an inner bag using paper as a base material, and the carton (1). Is composed of at least a top plate (7), a bottom plate (12), a front side body portion (5), a left side face plate (8), a right side face plate (4), and a rear side body portion (9).

In the example shown in FIG. 1, a circular hole (14) for pulling out a spout for taking out the contents is further provided between the top plate (6) and the front body portion (5). , An example of blanks capable of forming a slope (7).

The left side plate (8) and the right side plate (4) of the carton (1) are provided with arcuate perforations (10) at symmetrical positions.

Further, a ruled line (11) reaching the arcuate perforation (10) radially from one point (13) inside the arc of the arcuate perforation (10) is provided, and the ruled line (11) is provided. At least two of them are connected to one end and the other end of the arcuate perforation (10), and two or more are provided. In the example shown in FIG. 1, the ruled line (11) is an example in which another ruled line (11) is provided toward the vicinity of the center of the arc of the arcuate perforation (10), for a total of three lines.

The arcuate perforation (10) can be torn in an arc along the perforation, and after the arcuate perforation, the left side plate (8) and the right side surface plate (4) of the carton (1) are from the outside of the carton (1). Can be pushed in and a dent can be formed along the ruled line (11).

This pushed-in portion is a fan shape surrounded by an arcuate perforation (10) and a ruled line (11) connected to the end thereof. That is, this pushed-in recessed fan-shaped area can be used as a handle.

Further, as shown in the example shown in FIG. 1, the arcuate perforations (10) are the ridge line (16) between the left side plate (8) of the carton and the rear body portion (9), and the right side plate of the carton. It has one end at the ridge (15) between (4) and the rear torso (9), and one point (13) inside the arc is also the left and right ends of the carton and the back torso ( It can be provided on the ridgeline (16) and the ridgeline (15) between the 9) and the ridgeline (16).

At this time, among the ruled lines (11), the one connected to one end of the arcuate perforation (10) is between the left and right side ends of the carton (1) and the rear body portion (9). It is provided so as to coincide with the ridgeline (16) and the ridgeline (15) of.

By providing a fan-shaped area that is pushed in and recessed at this position, the handle can be made easier to grip.

FIG. 2 is a schematic perspective view (partially perspective) of the bag-in-carton for explaining one embodiment of the bag-in-carton according to the present invention.

As described above, the present invention is a bag-in-carton (20) of a double container composed of an outer box and an inner bag. The state shown in FIG. 2 is a state in which the bag (2) is stored in the carton (1).

The outer box is a carton (1) that stores an inner bag using paper as a base material, and the carton (1) is at least a top plate (6), a bottom plate (12), a front body portion (5), and a left side plate (1). It is composed of 8), a right side plate (4), and a rear body portion (9). In the example shown in FIG. 2, the bottom plate (12), the left side plate (8), and the rear side body portion (9) are the back surface of the perspective view and are invisible.

As the paper constituting the carton (1), for example, paperboard or the like can be used, which has a certain rigidity and is effective for handling and stacking as a double container.

Further, in the example shown in FIG. 2, in addition to the top plate (6), the bottom plate (12), the front side body portion (5), the left side face plate (8), the right side face plate (4), and the rear side body portion (9), A slope (7) having a circular hole (14) is formed between the top plate (6) and the front body (5) to pull out and fix the spout (3) for taking out the contents to the outside. This is an example.

The inner bag is a bag (2) using a plastic film as a base material and can store the contents, and the bag (2) has a spout (3) from which the contents can be taken out, and the spout (3) has a spout (3). It is fixed to the carton (1). The spout (3) can be opened and closed repeatedly by, for example, screwing a cap or the like.

The plastic film is a film made of a polymer resin composition, for example, polyolefin (polyethylene, polypropylene, etc.), polyester (polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, etc.), polyamide (nylon-6, nylon-66, etc.), Polyethylene or the like can be used and is appropriately selected according to the application.

In particular, when polypropylene or polyethylene terephthalate is used as a plastic film, it is more preferable in terms of film strength and price. In addition, when a stretched polyamide film is used, it is possible to impart toughness against piercing and impact resistance to the laminated body.

Further, the plastic film can be laminated with another layer via an adhesive layer to form a laminated body. The layer structure, material structure, thickness, etc. of the laminate can be appropriately designed according to the required quality for the packaging bag.

The bag (2) can be made by sealing a single-layer plastic film that can be sealed, or by providing a sealant layer on a laminate based on the plastic film and sealing the bag (2). can.

The sealant layer can be sealed by stacking two laminated bodies so that the sealant layers face each other. For example, they are adhered to each other by heating, pressurizing and heat-sealing, so that the bag (2) can be made and sealed.

Of the thermoplastic resins, polyolefin-based resins are generally used as the material of the sealant layer, and specifically, low-density polyethylene resin (LDPE) and medium-density polyethylene resin (specifically, low-density polyethylene resin (LDPE)).
MDPE), linear low-density polyethylene resin (LLDPE), ethylene-vinyl acetate copolymer (EVA), ethylene-α-olefin copolymer, ethylene-methacrylic acid resin copolymer and other ethylene-based resins and polyethylene. A blend resin of polybutene and a polypropylene resin such as a homopolypropylene resin (PP), a propylene-ethylene random copolymer, a propylene-ethylene block copolymer, or a propylene-α-olefin copolymer can be used.

To form the sealant layer, a molten resin can be formed by using an extruder or the like to form a layer on the laminate. Alternatively, it is also possible to form a sealant layer on the surface of the laminated body by laminating a material that has been formed into a film state in advance by laminating.

In the present invention, the left side surface plate (8) and the right side surface plate (4) of the carton (1) are provided with arcuate perforations (10) at symmetrical positions. The arcuate perforation (10) can be torn in an arcuate manner along the perforation.

By forming this rift in the left side plate (8) and the right side plate (4), the left side plate (8) and the right side plate (4) are pushed in to form a recess along the ruled line (11), and the bag is formed. It can be used as a handle for the incarton (20).

Further, a ruled line (11) reaching the arc-shaped perforation (10) is provided radially from one point (13) inside the perforation (10) on the arc, and at least two ruled lines are arc-shaped. Two or more perforations are provided by connecting to one end and the other end of the perforation. Therefore, the handle formed is a fan-shaped area.

In the example shown in FIG. 2, the right side plate (4) is provided with a total of three ruled lines (11), two of which are arcuate perforations (10). It is provided by connecting to one end and the other end to form a fan shape together with the arcuate perforation (10), and is approximately in the middle of the arc from one point (12) inside the same perforation. This is an example in which another one is provided toward the point.

The presence of the ruled line (11) makes it easy to push in the left side plate (8) and the right side plate (4) to form a recess and handle the bag-in-carton (20).

The fan-shaped handle is formed by a rift formed by an arcuate perforation (10) and a dent formed by a plurality of ruled lines (11), and the ruled lines (11) are gathered at one point (12) inside the perforation. Therefore, the load due to its own weight when the bag-in-box (20) is gripped can be collected in the direction of the center of the arc.

That is, no load is applied to the arcuate cross section formed on the left side plate (8) and the right side plate (4) of the carton, and the risk of destruction of the carton (1) can be reduced. This is the same as the left side plate (8) and the right side surface plate (4) of the bag-in-box (20).

The position where the recess is provided can be a position where the handle can easily grip the box-in carton (20), and as shown in FIG. 2, the perforations (10) of the arc are on the left and right sides of the carton (1). It has one end at the ridge (16) between the end and the rear body (9), and at the ridge (15), and one point (13) inside the arc is also on the left and right sides of the carton (1). It can be provided on the ridgeline (16) and the ridgeline (15) between the portion and the rear body portion (9).

This makes it possible to provide a bag-in-carton (20) that is easier to grip the carton (1) and is unlikely to be torn from the gripped portion of the carton (1).

In this way, according to the present invention, when the left side plate and the right side surface plate (4) of the carton of the bag-in carton (20) are gripped and the contents are poured out, the carton (1) can be easily gripped. Moreover, it is possible to provide a bag-in-carton (20) in which there is no risk of tearing from the grip portion of the carton (1).

1 ... Carton 2 ... Bag 3 ... Spout 4 ... Right side plate 5 ... Front body 6 ... Top plate 7 ... Slope 8 ... Left side plate 9 ... Back Side body 10 ... Arc-shaped perforation 11 ... Ruled line 12 ... Bottom plate 13 ... One point inside the arc 14 ... Circular hole 15 ... Ridge line 16 ... Ridge line 20 ...・ ・ Bag in carton

Claims (2)

A double-container bag-in-carton consisting of an outer box and an inner bag.
The outer box is a carton that uses paper as a base material to store the inner bag.
The carton consists of at least a top plate, a bottom plate, a front fuselage, a left face plate, a right face plate, and a rear fuselage.
The inner bag is a bag that can store the contents using a plastic film as a base material.
The bag has a spout that allows the contents to be taken out, and this spout is fixed to the carton.
The left and right face plates of the carton are provided with arcuate perforations at symmetrical positions.
A ruled line that reaches the arc-shaped perforation is provided radially from one point inside the arc.
At least two ruled lines are connected to one end and the other end of the arcuate perforation, and two or more ruled lines are provided.
The arc-shaped perforations can be torn in an arc along the perforations.
The ruled line is a bag-in-carton that can be pushed in from the outside of the carton. The arcuate perforations have one end on the ridge between the carton's left and right side plates and the rear fuselage, and one point inside the arc is also the carton's left and right side plates. A bag-in-carton characterized by being on the ridge between the rear torso.

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