JP6888316B2 - Pouch with spout - Google Patents

Description

The present invention relates to a pouch with a spout, and more particularly to a pouch with a spout having a built-in spout for sucking or pouring the liquid contents filled in the pouch.

Conventionally, a pouch (packaging bag) using a laminate (flexible packaging material) in which an intermediate layer having a barrier property, a base material layer having heat resistance, etc. are laminated on a heat-sealing resin layer using a heat-sealing resin. For example, for filling a relatively low-viscosity liquid such as juice, sports drink, nutritional drink, drinking water, tea, coffee drink, jelly-like drink, etc., and sucking or pouring this liquid. A variety of spouted pouches with straws and spouts (pouring devices, spouts) are used. Since such a pouch with a spout is lightweight, easy to carry, deformable, and easy to handle, a pouch mainly made of plastic made of various forms such as a self-standing bag made of flexible packaging material, a caset bag, and the like is used. Furthermore, it has a structure that is easy to open and that the liquid contents can be easily drunk or easily poured out.

As a bag having such a configuration, a bag-shaped container having a straw portion built in the bag-shaped container is widely known (see, for example, Patent Document 1). However, in this bag-shaped container, the straw portion is built in the bag-shaped container, but the upper portion of the straw portion, which is the mouthpiece portion, protrudes from the bag-shaped container and is exposed. Although a cap is attached to this protruding part, it is covered with a cap because there is a risk of dust adhering to the protruding part or touching human hands during transportation, storage, or over-the-counter sales. There is a problem that the outer circumference of the straw part tends to be unsanitary.

On the other hand, in a bag-shaped container having a straw holding portion formed at the top, the straw is built in the straw holding portion in a state of being bent in the middle, and when drinking, the bag-shaped container is torn to open the straw holding portion, and the opening is opened. There is known a straw-containing beverage bag-shaped container having a structure in which a straw in a more bent state is picked by hand to pull out the open end of the straw and suck and drink the liquid contents (see, for example, Patent Document 2). In the bag-shaped container for beverages containing a straw of Patent Document 2, since the straw is built in the bag-shaped container, it is possible to prevent dust from adhering from the outside and contact with human hands, which is more hygienic than Patent Document 1. Excellent. However, the bag-shaped container for beverages containing a straw of Patent Document 2 has a problem that it is difficult to take out the straw because the straw is built in in a bent state. Further, since the straw is wet with the liquid contents, there is a problem that the hands get dirty.

On the other hand, there is known a bag-shaped beverage container in which a straw is built in a bag-shaped beverage container having a narrow vertical neck portion at the upper portion and a gusset portion at the lower portion (for example, Patent Document 3). reference). The bag-shaped beverage container of Patent Document 3 has a holding portion for holding the straw between the neck portion and the gusset portion, with the upper portion of the straw located in the neck portion, and the bag-shaped beverage container is torn at the position of the holding portion to tear the neck portion. It is removed and inhaled from an exposed straw. Therefore, the mouthpiece of the straw is covered with the neck, which is hygienic, and it is convenient because the straw does not need to be pulled out. However, since the straw communicates between the inside of the gusset and the inside of the neck, the liquid contents contained in the gusset leak into the neck due to vibration or external force applied during transportation, or handling in distribution or sales. There is. Furthermore, since the straw is only in close contact with the bag-shaped container at the holding portion of the neck and is not joined, the liquid contents may leak into the neck when vibration or external force is applied to the bag-shaped container. As a result, when the bag-shaped container is torn at the position of the holding portion, the liquid of the contents leaked into the neck portion may scatter, and the surroundings may be soiled or clothes may be soiled.

JP-A-11-152152 Japanese Unexamined Patent Publication No. 8-337255 Japanese Unexamined Patent Publication No. 2002-68311

Therefore, the present invention has been made to solve the above-mentioned problems, and the purpose of the present invention is to allow dust to adhere to the spout or touch with human hands during transportation, storage, or over-the-counter sales. The purpose is to provide a pouch with a spout that can prevent the liquid contents from leaking when opened.

The present invention has been made in order to achieve the above object, and the present invention according to claim 1 has a tubular portion for pouring out the contents, a flange portion continuously provided below the tubular portion, and a flange. It is divided into a spout having a joint part connected below the joint part and a conduit part connected below the joint part, and a housing part for accommodating the contents and a cylinder part accommodating part for accommodating the side of the cylinder part of the spout. It is a pouch with a pouch that has a pouch body with a partition to be used, and the spout is housed in the pouch body, and the spout joint is joined to the partition of the pouch body so that the contents can be poured out. The upper end of the tubular portion of the spout is open , the conduit portion of the spout is composed of a first conduit portion and a second conduit portion, and the upper end of the first conduit portion is connected to the joint portion. The second conduit portion is provided with a closing portion at the lower end, the lower end is closed, and the first conduit portion and the second conduit portion are connected to the portion where the first conduit portion and the second conduit portion are connected. The separating means is provided with a concave portion inside the lower end of the first conduit portion, a convex portion is provided at the upper end of the second conduit portion, and the concave portion of the first conduit portion is provided with the first portion. (Ii) A pouch with a spout , wherein the convex portion of the conduit portion is removably fitted and connected in the fitted state.

The present invention according to claim 2 is characterized in that, in the pouch with a spout according to claim 1, an opening cut line is provided along the partition portion on the side of the cylinder portion accommodating portion of the pouch body. It is to be.

According to the pouch with a spout of the present invention, it is possible to prevent dust from adhering to the spout and touching the spout during transportation, storage, or over-the-counter sales, and the liquid contents can be prevented from being touched by human hands when opened. It can be assumed that there is no leakage.

An embodiment of a pouch with a spout according to the present invention is shown, and is a partially cutaway perspective view. The spout of the pouch with a spout according to the present invention is shown, (a) is a cross-sectional view of the spout in line AA of FIG. 1, and (b) is a bottom view of the spout. It is an enlarged sectional view which shows the other example about the separation means of the pouch with a spout which concerns on this invention. It is sectional drawing which shows the laminated structure of the pouch body of the pouch with a spout which concerns on this invention. It is explanatory drawing explaining the opening method of the pouch with a spout which concerns on this invention.

The above invention will be described in detail below with reference to drawings and the like.
FIG. 1 shows an embodiment of a pouch with a spout according to the present invention, a partially cutaway perspective view, FIG. 2 shows a spout of the pouch with a spout according to the present invention, and FIG. 1A shows AA of FIG. It is a cross-sectional view of the spout in the line, (b) is a bottom view of the spout, FIG. 3 is an enlarged cross-sectional view showing another example of the separating means of the pouch with the spout according to the present invention, and FIG. 4 is the spout with the spout according to the present invention. A cross-sectional view showing a laminated structure of a pouch body of a pouch, FIG. 5 is an explanatory view illustrating a method of opening a pouch with a spout according to the present invention, in which 1 is a pouch with a spout, 10 is a pouch body, 11, 12 Is a body member, 13 is a bottom member, 14 is a heat fusion part, 15 is a partition part, 16 is a housing part, 17 is a cylinder part housing part, 17a is a cutting piece, 18 is a cutting line for opening, 19 is a notch, and 20 is. Spout, 21 is a cylinder, 21a is a spout, 22 is a flange, 23 is a joint, 24 is a conduit, 25 is a first conduit, 25'is a separated first conduit, 25a is a recess, 26. Is the second conduit, 26'is the separated second conduit, 26a is the obstruction, 26b is the convex, 27 is the separation means, 30 is the laminate, 31 is the outer layer, 32 is the intermediate layer, 33 is the inner layer. H indicates a separation position display unit, respectively.

FIG. 1 shows an embodiment of a pouch with a spout according to the present invention, and is a partially cutaway perspective view. As shown in FIG. 1, the pouch 1 with a spout of the present invention has a tubular portion 21 for pouring out the contents, a flange portion 22 connected below the tubular portion 21, and a joint connected below the flange portion 22. It is divided into a spout 20 having a portion 23 and a conduit portion 24 connected below the joint portion 23, an accommodating portion 16 for accommodating the contents, and a tubular portion accommodating portion 17 accommodating the side of the tubular portion 21 of the spout 20. The pouch body 10 is provided with a partition portion 15 to be provided, and the spout 20 is housed in the pouch body 10, and the joint portion 23 of the spout 20 can pour the contents into the partition portion 15 of the pouch body 10. It is joined.

FIG. 2 shows the spout 20 of the pouch 1 with a spout according to the present invention, and is a cross-sectional view of the spout 20 in line AA of FIG. It is the figure which cut from the 11 side to the body member 12 side. As shown in FIG. 2, the spout 20 includes a tubular portion 21 having a spout 21a at the upper end, a flange portion 22 connected below the tubular portion 21, and a joint portion 23 connected below the flange portion 22. , A conduit portion 24 is provided below the joint portion 23. The flange portion 22 has a structure in which the flange portion 22 extends outward in a flange shape from the outer circumference of the tubular portion 21. Below the flange portion 22, a joint portion 23 having a substantially boat shape in a plan view is continuously provided, and in the central portion of the joint portion 23, the hollow inner wall of the tubular portion 21 is extended downward to form a hollow tubular portion. ing. As shown in the cross-sectional view shown in FIG. 2 (b), the joint portion 23 gradually becomes thinner from the center toward both side edges in the vertical direction (horizontal direction in FIG. 1), and has a substantially boat shape in a plan view. .. By doing so, the joint portion 23 is sandwiched between the two body members 11 and 12 made of the laminated body 30 (see FIG. 3) constituting the pouch main body 10, and the joint portion 23 is heat-sealed and joined by, for example, heat sealing. When this is done, the joint portion 23 is attached in close contact with the pouch body 10, so that there is no risk of liquid leakage, which is preferable. The spout 20 is attached in the vertical direction shown in FIG. 2 (b) in the horizontal direction of the pouch body 10 shown in FIG.

As shown in FIG. 2A, the conduit portion 24 connected below the joint portion 23 is composed of a first conduit portion 25 and a second conduit portion 26, and the upper end of the first conduit portion 25 is the joint portion 23. The lower end of the first conduit portion 25 is connected to the upper end of the second conduit portion 26. The second conduit portion 26 is provided with a closing portion 26a at the lower end. In the spout 20, the conduit portion 24 having the second conduit portion 26 connected to the tubular portion 21, the joint portion 23, and the first conduit portion 25 is communicated with a hollow tubular portion, and is provided at the lower end of the second conduit portion 26. It is closed by the closed portion 26a. The accommodating portion 16 and the tubular accommodating portion 17 are separated by the lower end being closed. In the conduit portion 24, a separation means 27 for separating the first conduit portion 25 and the second conduit portion 26 is provided at a portion where the first conduit portion 25 and the second conduit portion 26 are connected. In FIG. 2, as the separation means 27, a concave portion 25a is provided inside the tubular portion at the lower end of the first conduit portion 25, a convex portion 26b is provided inside the second conduit portion 26, and the convex portion 26b of the second conduit portion 26 is first. An example is shown in which the first conduit portion 25 and the second conduit portion 26 are watertightly sealed and connected by being fitted into the recess 25a of the conduit portion 25. The first conduit portion 25 may be a convex portion and the second conduit portion 26 may be a concave portion. It is important that the first conduit portion 25 and the second conduit portion 26 are in a watertightly sealed state.

FIG. 3 is an enlarged cross-sectional view showing another example of the separating means 27 of the pouch 1 with a spout according to the present invention, and is an enlarged view in a circle of FIG. As the separating means 27, the first conduit portion 25 and the second conduit portion 26 may be easily separated. In FIG. 3A, the first conduit portion 25 and the second conduit portion 26 are separated, a concave portion 25a is provided inside the tubular portion at the lower end of the first conduit portion 25, and a convex portion is provided inside the second conduit portion 26. 26b is provided, and the convex portion 26b of the second conduit portion 26 is fitted into the concave portion 25a of the first conduit portion 25, and further, the concave portion 25a of the first conduit portion 25 is fitted and opposed to each other in the left-right direction. Is provided with a recess, and a protrusion is provided on the convex portion 26b of the second conduit portion 26. When the first conduit portion 25 and the second conduit portion 26 are fitted, the recess and the protrusion are engaged with each other, and the second conduit portion 26 can be reliably prevented from falling off, which is a preferable form. Further, the recess may be provided in the second conduit portion 26, and the protrusion may be provided in the first conduit portion 25. In FIG. 3 (b), the first conduit portion 25 and the second conduit portion 26 are connected to each other via the separating means 27, and the thin-walled portion whose thickness is reduced in the thickness direction of the conduit portion 24 is provided as the separating means 27. It is provided on the outer circumference. By providing the thin-walled portion on the outer periphery of the conduit portion 24, the first conduit portion 25 and the second conduit portion 26 can be easily separated by bending the portion of the separating means 27, which will be described later. FIG. 3C shows a slit as the separating means 27 instead of the thin-walled portion. The slit is formed by forming a notch from the outside to the inside of the conduit portion 24 on the outer circumference. Although not shown, a hinge portion for connecting the first conduit portion 25 and the second conduit portion 26 may be provided at a position where the separating means 27 is provided.

The spout 20 is formed as a molded product by an injection molding method in which a resin is injected into a molding die. As the resin used for the spout 20, a resin that is heat-sealed with the resin of the inner layer 33 (see FIG. 3) of the laminate 30 constituting the pouch body 10 described later and a resin that is heat-sealed to each other by heat sealing are used. Examples thereof include high density polyethylene, high density polyethylene, linear (linear) low density polyethylene, polypropylene, and ethylene-propylene copolymer. When performing retort sterilization treatment, polypropylene and ethylene-propylene copolymers are preferable.

As shown in FIG. 4, as the pouch body 10, a laminated body 30 having an outer layer 31 on the surface, an intermediate layer 32, and an inner layer 33 made of a thermosetting resin on the inner surface is used. Then, for example, like the self-standing bag shown in FIG. 1, the body members 11 and 12 made of two laminated bodies 30 and the bottom member 13 are formed, and the inner layers 33 of the body members 11 and 12 are arranged so as to face each other, and the bottom portion is formed. The inner layer 33 of the material 13 is inserted between the mountain-folded body members 11 and 12 so as to be on the outside, and the peripheral edge is heat-sealed by the heat-sealing portion 14. The joint portion 23 of the spout 20 is sandwiched between the upper heat-sealing portion 14 and the lower heat-sealing portion 14 on the side closer to the upper heat-sealing portion 14 between the body member 11 and the inner layer 33 of the body member 12. It is formed by heat-sealing to form a partition portion 15 and to which a spout 20 is attached. In the partition portion 15, the inner layers 33 of the body member 11 and the body member 12 are heat-sealed to each other except for the portion bonded to the joint portion 23. The accommodating portion 16 and the tubular portion accommodating portion 17 are partitioned by the partition portion 15, and since the conduit portion 24 of the spout 20 is provided with the closing portion 26a, the accommodating portion 16 and the tubular portion accommodating portion 17 are separated from each other. There is. Since the tubular portion 21 and the spout 21a of the spout 20 are sealed in the tubular portion accommodating portion 17, when the product is filled with the contents, the product is being transported, stored, or sold over the counter. Since it is possible to prevent dust from adhering to the cylinder portion 21 and the spout 21a or touching the spout 21a, it is excellent in hygiene, and the cylinder portion accommodating portion 17 can be maintained in an isolated state from the accommodating portion 16, so that the cylinder It is possible that the liquid contents do not infiltrate into the unit accommodating portion 17 and that the liquid contents do not leak at the time of opening. Further, FIG. 1 shows an example of a self-standing bag in which the pouch body 10 is composed of body members 11 and 12 and a bottom member 13, but the pouch body 10 is not limited to this, and is in the form of a flat bag such as a gusset bag, a three-sided bag, or a four-sided bag. It can also be.

The laminate 30 constituting the pouch body 10 is fused deposition modeled by a dry lamination method in which an outer layer 31, an intermediate layer 32, and an inner layer 33 are laminated using, for example, a urethane-based adhesive for dry lamination, or a polyolefin-based resin. It can be laminated by the extrusion lamination method. If there is a retort sterilization treatment, the dry lamination method is preferable. Since the outer layer 31 is a basic material constituting the pouch body 10, a synthetic resin film having excellent mechanical, physical, chemical and the like can be used, and polypropylene, polyethylene terephthalate, nylon and the like can be used. A biaxially stretched film or the like can be used. Alternatively, aluminum or a film obtained by depositing an inorganic substance such as aluminum oxide, silicon oxide, indium oxide, tin oxide, and zirconium oxide on the above film to provide a vapor deposition layer can be used. Usually, the outer layer 31 is often printed, and printability is required. Therefore, a biaxially stretched film is preferable. The thickness of the film constituting the outer layer may be a thickness that can be maintained at the minimum necessary for strength, rigidity, etc. as a basic material, and may be determined in consideration of cost, etc., but usually It is about 9 to 50 μm.

The intermediate layer 32 is provided when rigidity, light shielding property, gas barrier property, etc. are required by packaging conditions, transportation conditions, and content protection function conditions, and the film used for the outer layer 31 and the vapor deposition layer are provided. The provided film, metal foil such as aluminum and iron can be used. Further, one or more of these films and the like may be combined and laminated. Further, the intermediate layer 32 may be omitted depending on the required quality.

A thermosetting resin is used as the inner layer 33, and in the case of retort sterilization treatment, unstretched polypropylene, unstretched polypropylene (CPP) obtained by blending an elastomer component with polypropylene, high-density polyethylene (HDPE), or the like can be used. .. In the case of boiling treatment, low density polyethylene (LDPE), medium density polyethylene (MDPE), linear low density polyethylene (LLDPE), ethylene-vinyl acetate copolymer (EVA), ionomer, ethylene-acrylic acid copolymer ( An unstretched film such as EAA), an ethylene-ethyl acrylate copolymer, or an ethylene-methacrylic acid copolymer is used. Specific examples of 2 to 3 of the laminated body 30 constituting the pouch body 10 are shown.
PET / DL / AL / DL / ON / DL / CPP or LLDPE
PET / DL / ON / DL / AL / DL / CPP or LLDPE
VMPET / DL / ON / DL / CPP or LLDPE
PET / DL / VMON / DL / CPP or LLDPE
VMPET / DL / CPP or LLDPE
VMON / DL / CPP or LLDPE
PET: Biaxially stretched polyethylene terephthalate film ON: Biaxially stretched nylon film AL: Aluminum foil VMPET: PET deposited with silicon oxide or aluminum oxide
VMON: ON with silicon oxide or aluminum oxide deposited
CPP: Unstretched polypropylene film LLDPE: Linear low-density polyethylene DL: Adhesive (dry lamination method)

Further, in the pouch 1 with a spout of the present invention, as shown in FIG. 1, an opening cut line 18 is provided along the upper edge of the partition portion 15 on the side of the tubular portion accommodating portion 17 of the pouch body 10, and the opening cut line 18 is provided. The heat-sealed portions 14 at both ends of the above are provided with V-shaped notches 19 from the outer edge to the inside. With such a configuration, the pouch 1 with a spout can be easily opened from the opening cut line 18 starting from the notch 19, and the spout 21a and the tubular portion 21 can be exposed, which is preferable.

As a method of providing the cutting line 18 for opening, for example, a heat melting drilling method of melting and drilling a film by using a needle punching method or an embossing roll method of pressing a heated hot needle, a physics using a knife, a cutter or the like. Examples thereof include a target drilling method, laser beam processing, corona discharge, plasma discharge and other processing methods.

The shape of the cut of the opening cut line 18 may be any shape such as a straight line, a curved line, a perforated line shape, a broken line shape, and the number thereof may be one or a plurality. Further, the structure of the cut may be any of a through hole, a half-cut state, and a state in which they are mixed. In the case of half-cutting, for example, it can be engraved with a pulse oscillation type laser, and by selecting the wavelength of the pulse oscillation type laser, the opening cut line 18 can be engraved only on the outer layer 31. it can. Further, the pouch body 10 is formed with a separation position display portion H so that the position of the separation means 27 provided in the conduit portion 24 can be visually recognized from the outside.

To show an example of the method for manufacturing the pouch 1 with a spout of the present invention, for example, the contents are placed in the pouch body 10 with the upper end of the self-standing bag type pouch body 10 as shown in FIG. 1 having an unfused opening. Next, the spout 20 is charged into the pouch body 10, sandwiched between the body member 11 and the body member 12, and the joint portion 23 and the inner layer 33 of the body members 11 and 12 are heat-sealed (heat). The partition portion 15 is formed by fusing), the upper end is heat-sealed by the heat-sealing portion 14, the cylinder portion 21 is sealed by the cylinder portion accommodating portion 17, and the spout 20 is built in the pouch body 10 to contain the contents. A pouch with a spout filled with is manufactured. Then, for example, a retort sterilization treatment is performed to complete the packaged product.

FIG. 5 is an explanatory diagram illustrating a method of opening the pouch 1 with a spout according to the present invention, and a method of opening the pouch 1 with a spout will be described with reference to FIG. In the pouch 1 with a spout filled with the contents, first, the pouch body 10 and the spout 20 are folded in half at the position where the separating means 27 is formed, that is, the separation position display unit H. The situation is shown in FIGS. 5 (a) and 5 (b). Then, in the spout 20 built in the pouch body 10, the mating state of the first conduit portion 25 and the second conduit portion 26 is released, and only the second conduit portion 26 is disengaged from the first conduit portion 25 and the bottom member 13 Fall up. After that, the pouch body 10 is returned to the original upright state, and the body members 11 and 12 are torn and opened from the notch 19 along the opening cut line 18. Then, when the cut piece 17a is removed, the tubular portion 21 and the spout 21a of the spout 20 are exposed as shown in FIG. 5 (c), and the conduit portion 24 is released from the closed state. The accommodating portion 16 is in a communicative state, and the contents can be drunk from the spout 21a. Since the spout 21a and the cylinder portion 21 are protected by the cylinder portion accommodating portion 17 until the package is opened, they are hygienic when drinking. Further, since the tubular portion accommodating portion 17 is isolated from the accommodating portion 16, there is no liquid in the contents, and when the package is opened, the liquid in the contents does not scatter and the surroundings and clothes are not soiled. ..

The pouch 1 with a spout of the present invention can be retort-packed, can store contents such as nutritional drinks, soups, coffee drinks, and jelly-like beverages, and is particularly applicable to applications that can be retort-packed.

It should be noted that one embodiment described so far is a typical example of the pouch with a spout according to the present invention, and the pouch with a spout according to the present invention is not limited to this, and the present invention is not limited to this. Anything that does not deviate from the gist of the present invention is included in the present invention.

1 Pouch with spout 10 Pouch body 11, 12 Body member 13 Bottom member 14 Heat fusion part 15 Partition part 16 Accommodation part 17 Cylinder part accommodating part 17a Cut piece 18 Opening cut line 19 Notch 20 Spout 21 Cylinder part 21a Outlet 22 Flange Part 23 Joint part 24 Conduit part 25 First conduit part 25'Separated first conduit part 25a Recessed part 26 Second conduit part 26' Separated second conduit part 26a Blocked part 26b Convex part 27 Separation means 30 Laminated body 31 Outer layer 32 Intermediate layer 33 Inner layer H Separation position display unit

Claims (2)

A cylinder part for pouring out the contents, a flange part connected below the cylinder part, a joint part connected below the flange part, and a spout having a conduit part connected below the joint part.
A pouch body having a partition for accommodating the contents and a tube accommodating portion for accommodating the side of the spout tube, and a pouch body.
The spout is housed in the pouch body, and the spout joint is a pouch with a spout that is joined so that the contents can be poured out to the partition of the pouch body.
The upper end of the tubular portion of the spout is open.
The conduit portion of the spout is composed of a first conduit portion and a second conduit portion, the upper end of the first conduit portion is connected to the joint portion, and the second conduit portion has a closing portion at the lower end and the lower end thereof. Is blocked,
A separation means for separating the first conduit portion and the second conduit portion is provided at a portion where the first conduit portion and the second conduit portion are connected .
The separating means includes a concave portion inside the lower end of the first conduit portion, a convex portion at the upper end of the second conduit portion, and the convex portion of the second conduit portion fits into the concave portion of the first conduit portion. A pouch with a spout that is detachably fitted and connected in a combined state. The pouch with a spout according to claim 1, wherein an opening cut line is provided along the partition portion on the side of the cylinder portion accommodating portion of the pouch body.

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