JP2001213443A - Bottle shape pouch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bottle shape pouch in which the pouch has a cubic shape like a bottle, which is excellent in self-supporting properties and usability, and which is also excellent in the external appearance without causing fold wrinkles or the like in a body thereof. SOLUTION: The bottle type pouch 100 is formed into a shape that it has gusset portions 6, 7 at upper and lower parts thereof, respectively, and that both sides thereof are sealed at side seal parts 9, 9, respectively. The length of the upper gusset portion 6 is made shorter than that of the lower gusset portion 7, and a protruding portion 10 whose outer circumference is sealed by heat sealing and which has a shape of being gradually narrowed in width in an upward direction is extendedly provided at an upper side of one (front side) of front and rear pleat-like parts of the upper gusset portion 6. A pouring port 20 made of a plastic molding is joined to an upper part of the protruding portion 10, and the other pleat-like part is heat-sealed at a back surface side seal part 13 of the upper gusset portion, whose inside is formed into an obtuse- angled inverted V-shape. The lower gusset portion 7 is heat-sealed at a bottom seal part 8 formed into a ship's bottom shape. Thus, the bottle type pouch is constituted with these arrangements.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bottle-shaped pouch used for hermetically packaging not only liquid materials but also powdery, granular and other fluid contents.
The pouch has a shape similar to a vertically long bottle, is self-supporting, has a spout made of plastic molded material at the top, has excellent shape stability after filling the contents, and has a three-dimensional function. The present invention relates to a bottle-shaped pouch having characteristics similar to a container and suitable for use not only as a pouch for ordinary use but also as a pouch for refilling.

[0002]

2. Description of the Related Art Conventionally, in addition to various liquid detergents, cleansers, softeners, emulsion pastes, etc., various beverages, liquid seasonings such as soy sauce, sauces, mentsuyu, etc., liquid substances, powders such as milk powder, cocoa, etc. Was mainly filled in containers having shape retention, such as plastic bottles, glass bottles, and metal cans, distributed and used, and used containers were discarded. On the other hand, there is also a problem of waste disposal, and these containers are being sorted, collected, and recycled after use. However, such shape-retaining containers have a strong tendency to consume resources, and the ratio of container cost to commodities cannot be ignored.

[0003] From such a viewpoint, there has been a demand for a lower-priced, simplified type container such as a pouch made of a soft packaging material such as a laminate film. Such a simple container can be used as a substitute for a shape-retaining container such as the plastic bottle, glass bottle, or metal can, or as a refill container used to refill a container such as a used bottle with the same contents. Can also be used. As such a simple type container, for example, a container using a standing pouch having autonomy as it is, or
A pouch having a narrower spout at the top of the standing pouch, and a plastic molded body at the top of the pouch to further stabilize the opening and shape retention of the spout. Some have a spout.

[0004] Such a pouch consumes a small amount of material, is lightweight, and can pack its contents compactly, so that resource saving and distribution costs can be reduced, and disposal after use is also easy. Among them, a pouch having a plastic spout attached to the upper part of the standing pouch is easy to handle and has the best performance and suitability for use.

[0005] However, even when the pouch itself is provided with a spout made of a plastic molded body on the upper part of the above-mentioned standing pouch, the laminated film forming the pouch itself is thin and has low rigidity, so that it is inferior in shape-retaining property. When the pouch is filled with the contents, when the pouch is filled with contents, a wrinkle is generated inward from the side seals on both sides at a position closer to the top from the middle of the pouch body, There was a problem with poor appearance.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is to provide a pouch body formed of a laminated film and having a fluid such as a liquid material. It is a pouch in which the content with the property is sealed and packaged, has excellent storage stability of the content, is lightweight and not bulky, is easy to dispose after use, and is self-supporting and easy to handle. At the same time, it is equipped with a spout that has excellent shape retention, is also smart in appearance, similar to a shape retention container such as a bottle, and does not generate wrinkles or the like in the pouch even after filling the contents, and has excellent shape stability Another object of the present invention is to provide a bottle-shaped pouch excellent in display effect at stores with high productivity.

[0007]

The above objects can be attained by the present invention described below. That is, the invention described in claim 1 is a pouch formed of a laminated film and hermetically packed with fluid content such as a liquid material,
The upper and lower portions of the pouch are formed in such a manner as to have a gusset portion formed by folding and inserting a top film or a bottom film inward between two front and rear wall films, respectively. Both side edges of the wall film are formed by heat sealing with side sealing portions, and the lower gusset portion is heat-sealed with a seal pattern of a shape imparting independence, and the front and rear both sides of the upper gusset portion are formed. On the upper side of one of the folds, a film on both sides of the fold is extended, that is, a wall film and an upper surface film opposed thereto, and the width is reduced toward the upper side on both sides. A projecting portion is provided, and both side edges of the projecting portion are heat-sealed with an upper seal portion having a shape extending from the base of the fold portion to the upper side of the projecting portion, and a projection is formed on the upper portion of the projecting portion. It consists of a bottle-shaped pouch, characterized in that the spout made of a molded article sticks are joined.

In the above description, the gusset portion on the side of the upper gusset where the projection is not provided only needs to be heat-sealed at least on the outer periphery thereof, and the sealing pattern may be arbitrary.

By adopting such a configuration, the bottle-shaped pouch of the present invention can consume less material, is lighter and less bulky, and is disposed of after use, as compared with a shape-retaining container such as a plastic bottle. Will also be easier. The pouch filled with the contents is easy to handle because the lower gusset portion and its seal pattern provide self-sustainability, and the main body becomes a tubular body with the upper and lower gusset portions. Therefore, it is possible to pack compactly for its capacity, and it is possible to reduce distribution costs and display space at stores.

[0010] Further, on the upper side of one of the gusset portions of the gusset portion on the upper part of the pouch, there is provided a protruding portion in which the film on both sides is extended and both sides become narrower in the upper direction. Both side edges of the portion are heat-sealed with an upper seal portion having a shape extending from the base of the fold portion to the upper side of the protrusion, and a spout made of a plastic molded body is joined to the upper portion of the protrusion. The outlet has good shape retention, and the contents can be safely and easily poured out. Furthermore, the appearance is smart similar to a shape retention container such as a bottle, and it is displayed at a store. The effect is also excellent.

[0011] For example, when transferring the contents to another container, the spout is opened and the opening is inclined toward the mouth of the container so that the contents flow toward the opening. Due to the internal pressure, the films on both sides of the upper gusset portion including the protruding portion spread outward, and a funnel shape formed by the wall surface film and the upper surface film is formed at this portion. Therefore, the contents flow to the spout smoothly, and the contents can be safely and easily transferred to the end.

According to the second aspect of the present invention, the upper gusset portion, on which the protruding portion is not provided, is heat-sealed with a seal pattern in which the inner side is convex toward the upper side. The bottle-shaped pouch according to claim 1, wherein: The seal pattern in which the inner side is convex toward the upper direction may be any seal pattern in which the inner side is substantially convex toward the upper direction, and in particular, the bottom of the ship is inverted. Inverted bottom seal pattern, that is, a seal pattern in which the inside is convex in a curved shape such as an arc, a seal pattern in which the inside is convex in a trapezoidal shape, or a seal pattern in which the inside is an inverted V-shape with an obtuse angle. Etc. can be suitably used.

By adopting such a configuration, in addition to the operation and effect of the invention described in the first aspect, when the contents are filled in the pouch, the upper part of the pouch is also easily spread to a shape similar to the lower part. Therefore, the body of the pouch can be formed into a cylindrical body having a more uniform shape. Also, when transferring the contents filled in the pouch to another container, the film on both sides of the upper gusset portion including the protrusion is expanded outward by the internal pressure of the contents, and the wall film and the top film are formed in this portion. A funnel shape is formed, but at this time, the upper surface film naturally forms a ridge line and spreads from the convex front end portion of the seal pattern in which the inner side is convex toward the upper direction toward the spout, The funnel shape becomes a pyramid shape, and the shape retention is improved. Therefore, the flow of the contents to the spout becomes smoother, and the contents can be safely and easily transferred to the end.

[0014] Further, the rigidity of this portion is increased by the fold portion on the side of the upper part of the pouch where the protruding portion is not provided and the heat sealing portion of this portion by the seal pattern, so that the vicinity of the upper portion of the pouch is reinforced. Also, after the contents are filled, the wrinkles which are generated inward from the side seal portions on both sides at the position closer to the upper portion from the middle portion of the pouch body portion are also prevented, and the appearance can be further improved.

According to a third aspect of the present invention, the seal pattern in which the inside is convex toward the upper direction is a seal pattern in which the inside has an inverted V-shape with an obtuse angle. It is a bottle-shaped pouch as described.

By adopting such a configuration, in addition to the function and effect of the invention described in the second aspect, the ridge-shaped bend formed on the funnel-shaped upper film side has an obtuse inverted V-shape. Is formed more sharply from the top to the spout, so that the funnel-shaped pyramid becomes sharper, the shape retention is further improved, and the contents are transferred more safely and easily to the end. Be able to change.

According to a fourth aspect of the present invention, the folded length of the upper film of the upper gusset portion is smaller than the folded length of the lower film of the lower gusset portion. 4. The bottle-shaped pouch according to any one of 1 to 3.

When the upper and lower portions of the pouch are formed in a gusset format, the folding length of the upper film of the upper gusset portion and the folding length of the lower film of the lower gusset portion are usually provided with the same length. Thereby, the main body of the pouch is formed into a substantially uniform cylindrical body. However, in the bottle-shaped pouch of the present invention, the film on both sides, that is, the wall film and the upper surface film opposed thereto are extended on the upper side of one of the gussets of the upper gusset, and both sides are directed upward. A protrusion is formed that gradually narrows toward the top and the width of the upper part is reduced, and a spout made of a plastic molded body is joined to the upper part of the protrusion, so that when the contents are poured out, In the funnel-shaped portion formed on the upper protruding portion, the upper film is longer than the wall film by its folding length (exactly the length excluding the length of the seal portion). The shape is easily bent outward. Therefore, by adopting the above-described configuration, in addition to the functions and effects of the invention according to any one of claims 1 to 3, a funnel shape formed in the fold-shaped portion where the protrusion is extended. Is prevented from being bent outwardly, and the funnel-shaped effect can be more reliably obtained.

The amount by which the folding length of the upper film of the upper gusset portion is smaller than the folding length of the lower film of the lower gusset portion is not particularly limited. , A reasonable effect can be obtained. Also, at the maximum, the upper film may be folded back, leaving only the heat-sealed portion of the required width at the upper edge of the gusset on the side where the protrusion of the upper gusset is not provided. Although the heat seal portion of the fold portion on the side where the portion is not provided has a horizontal flat seal pattern, the outward bending of the funnel shape can be reliably prevented, and the heat seal portion is provided. Since the rigidity of the pouch is high, the form stability near the upper part of the pouch is improved, and the wrinkles generated in the pouch body described above can be eliminated.

According to a fifth aspect of the present invention, the inner line of the upper seal portion for heat-sealing both side edges of the fold portion on the side on which the protruding portion is provided extends from both base portions of the fold portion. The bottle-shaped pouch according to any one of claims 1 to 4, wherein the pouch is formed in a shape that is connected by an inclined straight line up to an upper side of the protrusion.

By adopting such a configuration, in addition to the functions and effects of the invention according to any one of claims 1 to 4, the spout is used when the contents filled in the pouch are transferred to another container. Since the funnel shape formed on the fold portion on the side where is joined becomes a sharper pyramid shape, the shape retention is improved, and the contents can be transferred more smoothly.

According to a sixth aspect of the present invention, the seal pattern having a shape for imparting independence of the lower gusset portion is provided.
The bottle-shaped pouch according to any one of claims 1 to 5, characterized in that it is a ship bottom-shaped seal pattern in which a central portion is low and becomes high toward both side ends.

By adopting such a configuration, in addition to the functions and effects of the invention according to any one of claims 1 to 5, the pouch filled with the contents has a bottom portion corresponding to the seal pattern. For example, in the case of a bottom-shaped seal pattern in which the inside is formed by a curved line, an oval shape, a bottom-side seal pattern in which the inside rises straight from the bottom with a predetermined width on both sides with a slope outward. In the case, it becomes a hexagonal shape, the center part is greatly widened back and forth,
In addition, since the legs are formed by the heat seal portion on the outer periphery of the bottom surface, the self-sustainability of the pouch can be further improved.

According to a seventh aspect of the present invention, the pouch is held or suspended on one of the heat seal portions on the upper peripheral edge of the pouch or on an enlarged seal portion obtained by expanding the heat seal portion. The bottle-shaped pouch according to any one of claims 1 to 6, wherein a hole for lowering is provided.

The hole for holding or suspending the pouch is used for carrying the pouch, transferring the filled contents to another container, and inserting a finger to facilitate holding the pouch. Alternatively, it is a hole for easily lowering the pouch by hand through a hanging string or the like, and the shape and number thereof can be arbitrarily provided. Such a hole may be a completely cut-out hole, a hole partially provided with a connecting portion, or a hole formed by an intermittent cut line such as a perforated shape, which easily breaks through the finger. It may be a hole into which a hole can be inserted.

In the case where a hole for holding the pouch is provided, for example, the heat seal portion at the upper portion of the pleat on the side where the spout of the gusset portion at the top of the pouch is not joined is expanded upward, and the enlarged seal portion is formed. A hole having a shape such as an elliptical shape, an oblong shape, and a circular shape can be provided. In addition, the hole for hanging, for example, through a hanging string through the hole, when used for handbags, the heat seal portion on both sides of the projecting portion to which the spout is joined is expanded, the enlarged seal portion A hole such as a circle may be provided, and the heat seal portion of the pleated portion on the side where the spout is not joined is expanded upward,
Holes may be provided on both sides thereof.

Also, regarding the enlarged seal portion provided with the hole as described above, it is usually preferable to form the film on both sides of the heat seal portion and heat seal the entire surface. It is preferable in terms of increasing the strength of the surroundings, but is not particularly limited.For example, the heat seal may be a pattern-shaped heat seal partially provided with a non-seal portion, and the film of the enlarged seal portion is It may be formed of only one side of the film, and when it is necessary to increase the strength, a reinforcing material such as a film may be additionally laminated and formed into a multilayer.

By adopting such a configuration, in addition to the functions and effects of the invention according to any one of claims 1 to 6, handling such as carrying the pouch becomes easy, and at the same time, the contents filled in the pouch are obtained. Even when transferring an object to another container, especially when the capacity of the pouch is large and the pouch size is large, for example, insert the finger into the holding hole and hold the top of the pouch, and hold the bottom of the pouch from below. Since the contents can be poured out by tilting the pouch while supporting them by hand, the contents can be safely and easily transferred.

[0029]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention, such as a film and a spout used for a bottle-shaped pouch of the present invention, and a method for producing a bottle-shaped pouch will be described below.
First, the film used for the bottle-shaped pouch of the present invention is mainly a laminated film mainly composed of plastic,
There is no particular limitation, and any known laminated films used for packaging pouches for liquid contents can be used, such as the type of contents to be filled and the presence or absence of heat treatment after filling, A suitable material can be freely selected and used according to the use conditions. As a typical example of the configuration of the laminated film used for the bottle-shaped pouch of the present invention, the following configuration is exemplified.

(1) ON film / adhesive / L·LDPE
Film (sealant layer) (2) ON film / adhesive / biaxially stretched HDPE film / adhesive / L / LDPE film (sealant layer) (3) ON film / adhesive / biaxially stretched PP film / adhesive / L・ LDPE film (sealant layer) (4) ON film / adhesive / biaxially stretched PP film / adhesive / aluminum foil / adhesive / L ・ LDPE film (sealant layer) (5) ON film (silica or alumina deposited layer) ) / Adhesive / biaxially stretched HDPE film / adhesive / L·LDPE
Film (sealant layer) (6) ON film / anchor coat layer / co-extrusion (HDPE layer / L-LDPE layer) (the sealant layer is L-LDPE layer) (7) ON film / anchor coat layer / co-extrusion Coat layer (HDPE layer / LDPE layer) / adhesive / L-LDP
E film (sealant layer) (8) PET film / adhesive / aluminum foil / adhesive / ON film / adhesive / L / LDPE film (sealant layer) (9) PET film / adhesive / aluminum foil / adhesive / ON film / adhesive / CPP film (sealant layer) (10) PET film / adhesive / ON film / adhesive /
Aluminum foil / adhesive / L / LDPE film (sealant layer) (11) PET film / adhesive / ON film / adhesive /
Aluminum foil / adhesive / CPP film (sealant layer) (12) PET film / adhesive / EVOH film / adhesive / ON film / adhesive / CPP film (sealant layer) Instead, various combinations of laminated films can be used.

In the above construction, the ON film is a biaxially stretched nylon film, the L / LDPE is a linear low density polyethylene, the HDPE is a high density polyethylene, the LDPE is a low density polyethylene, the PP film is a polypropylene film, and the PET film is biaxial. The stretched polyethylene terephthalate film and the EVOH film indicate a saponified ethylene-vinyl acetate copolymer film, and the CPP film indicates a non-stretched polypropylene film. Also,
The anchor coat is a kind of primer coat which is pre-coated on the base film side in order to improve adhesiveness when laminating a resin by extrusion coating.

In the structure of the above-mentioned laminated film, ON
Films and PET films provide pouches with mechanical strength and printability as base films, and biaxially stretched HDPE films as intermediate layers and biaxially stretched PP films have moisture permeability (moisture proof) in addition to mechanical strength. It is laminated to improve. An aluminum foil, a silica or alumina vapor-deposited layer, an EVOH film, and the like are laminated to impart gas barrier properties, thereby improving the storage stability of the contents.

As the sealant layer, L·LDP
Two types of examples, E film and CPP film, are given.
L-LDPE film is excellent in heat seal stability and content resistance, such as stress cracking resistance to surfactants, and CPP film is excellent in heat resistance and low odor. It is suitable for packaging contents.

In the sealant layer, in addition to the above, an ethylene / α-olefin copolymer, ethylene / vinyl acetate copolymer, ethylene / acrylic acid copolymer, ethylene Acrylic ester copolymers, ionomers, polyester resins and the like can also be appropriately selected and used.

In particular, an ethylene / α-olefin copolymer obtained by polymerization using a single-site catalyst such as a metallocene catalyst has a narrow molecular weight distribution and a stable copolymerization ratio, so that the low-temperature heat sealability and Pouches having excellent hot sealing properties, such as the bottle-shaped pouch of the present invention, such as between the upper and lower gusset portions and the body seal portion, and having a step due to the difference in film overlap in the heat seal portion, or ,
It is suitable for a sealant layer of a pouch in which a spout made of a plastic molded body is bonded to the inner surface of the pouch by thermal bonding in that the generation of pinholes due to a missing seal can be prevented. Further, by using the copolymer blended with an olefin-based elastomer, the heat fluidity of the sealant layer is improved, and the occurrence of pinholes due to the step or the like can be more effectively prevented.

The contents to be filled in the bottle-shaped pouch of the present invention are not limited to liquids, but may be anything such as foods and non-foods as long as they have fluidity such as powdery or granular. In the case where contents that are easily oxidized such as oil are filled, an ultraviolet absorber can be kneaded into any one or a plurality of layers of the laminated film. Further, an ultraviolet absorbing agent may be mixed with a resin, and the ultraviolet absorbing layer may be provided by a coating method. One or two or more compounds selected from the following can be used as the ultraviolet absorber. In organic systems, benzophenone-based, benzoarizol-based, salicylic acid-based, organic nickel-based, acrylonitrile-based, monobenzoic acid-based, oxalic anilide-based, cyanoacrylate-based, and triazo-based ultraviolet absorbers,
In the case of an inorganic material, an oxide of each element such as titanium, zinc, and cerium can be used.

Further, the spout made of a plastic molded body attached to the bottle-shaped pouch of the present invention is obtained by inserting the adhesive base into the inner surface of the upper part of the protruding portion extending on the upper part of the pouch, and sealing the pouch with a sealant. It can be joined by heat bonding using a layer. Such a spout can be easily manufactured by, for example, injection molding of plastic, and the shape thereof may be a two-piece type in which the spout and the cap are separately formed. It may be a one-piece type integrally formed through a thin portion. When the spout is the two-piece type, after the spout is joined to the pouch, for example, the contents are filled from the opening of the spout, and before the cap is closed, a seal made of a laminated film is formed in the opening. The material can also be heat sealed to ensure a tight seal. The material of the spout needs to be capable of being thermally bonded with the sealant layer of the pouch. For example, polypropylene, polyethylene of medium density or high density, polyester, etc. can be used.

Next, a method for producing a bottle-shaped pouch of the present invention, which is produced using the above-described laminated film and a spout, will be described. In the bottle-shaped pouch of the present invention, the bag making itself is extended, for example, using a conventional bag making machine for standing pouches using a two-row butt bag making machine to form upper and lower gussets and the like. Projections and the like can be formed. Then, by appropriately adding a heat sealing device for each heat sealing portion, a trimming device for cutting out the outside of the protruding portion and the like, a punching device for providing a hole for holding or suspending the pouch, etc. It can be made into bags. In addition, the spout can be joined to the pouch by mounting the mounting device in a bag making machine and mounting the bag in line with the bag making machine. Alternatively, a mounting device can be separately prepared and mounted offline.

In the heat sealing of the gusset portion on the upper part of the pouch, the seal pattern is different between the fold portion on the side where the projection for joining the spout is provided and the other fold portion. It is necessary to heat seal, but it is possible to make a bag without any problem by dividing into a plurality of sections and heat sealing.

[0040]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below more specifically with reference to the drawings. However, the invention is not limited to the drawings presented.

FIG. 1 is a front view showing the structure of a first embodiment of the bottle-shaped pouch of the present invention. FIG. 2 is a rear view of the bottle-shaped pouch shown in FIG. FIG. 3 is similar to FIG.
FIG. 6 is a side view showing a shape when the contents are filled in the bottle-shaped pouch shown in FIG. FIG. 4 is a front view showing the configuration of the second embodiment of the bottle-shaped pouch of the present invention. FIG. 5 is a side view showing the shape when the contents are filled in the bottle-shaped pouch shown in FIG. 4 and the pouch is inflated. FIG. 6 is a front view showing the configuration of the third embodiment of the bottle-shaped pouch of the present invention. And (a) of FIG.
(B) and (c) are schematic front views for explaining the shapes of the bottle-shaped pouches of the comparative examples when the contents are filled and sealed.

First, the bottle type pouch of the comparative example shown in FIGS. 7A, 7B and 7C will be described. The bottle-shaped pouch 500 shown in FIG. 7A is formed by forming a pouch body in a standing pouch form and joining a spout 20 made of a plastic molded body to the upper central portion by thermal bonding. It is. When such a bottle-shaped pouch 500 is filled with a liquid content and sealed, the bottle-shaped pouch 500 swells back and forth and becomes self-supporting, but curls K and K occur at the upper corners on both sides. Since the rigidity of the portion is low, the weight of the contents causes the folded wrinkles S as illustrated in the middle of the pouch 500 or at a position slightly closer to the upper side from the side seal portions on both sides toward the inside.
This is not preferable because S is generated and the appearance is impaired.

The bottle-shaped pouch 60 shown in FIG.
0, the pouch body is formed in a standing pouch form, the upper side corners are cut diagonally to reduce the width of the upper part, and the cut side edges are sealed by heat sealing, A spout 20 made of a plastic molded body is joined to the upper central portion by thermal bonding. When such a bottle-shaped pouch 600 is filled with a liquid content and sealed, the same as the bottle-shaped pouch 500 shown in FIG.
00 swells back and forth to become independent. In addition, since the corners on both sides of the upper part of the pouch 600 are removed, curl generated in this part is naturally eliminated. But,
In the middle part of the pouch 600 or at a position slightly higher than the middle part, since the rigidity of the body is low, folding wrinkles S, S also occur in this case inward from the side seal parts on both sides,
The appearance was impaired, which was not preferred.

The bottle-shaped pouch 70 shown in FIG.
0, the upper and lower portions of the pouch are formed in a form having gusset portions 6, 7 formed by folding an upper surface film or a bottom film inward between two front and rear wall films, respectively. Formed by heat sealing both side edges of the front and rear two wall films with side sealing portions,
The lower gusset portion 7 is heat-sealed with a ship bottom-shaped seal pattern in which the inner side is formed by a curved line, and one (front side in the figure) of the gusset portions on the front and rear sides of the upper gusset portion 6. On the upper side of the portion, the film on both sides thereof, i.e., the wall film and the upper surface film opposed thereto are extended by the same width to provide a protrusion, and the edges on both sides of the protrusion are attached to the pleated portion. From the base to the top of the protrusion,
Heat seal into a shape that connects with the side seals on both sides,
Further, a spout 20 made of a plastic molding is joined to the center of the upper portion of the protrusion by thermal bonding, the upper edges of the protrusions on both sides thereof are heat-sealed, and the upper gusset 6 is The other fold (the back side in the figure) is heat-sealed with a seal pattern having an inverted V-shape with an obtuse inside.

When such a bottle-shaped pouch 700 is filled with a liquid content and sealed, the body expands in a cylindrical shape by the upper and lower gusset portions 6 and 7, so that the bottle-shaped pouch 700 is self-supporting and has a shape. Also looks more like a bottle. And, in the upper gusset part 6, on the back side in the figure,
There is a pleated part, and the part is an inverted V with an obtuse inside.
Heat sealing with a seal pattern that is shaped like a letter makes it possible to reduce the wrinkles that occur on both sides of the pouch body due to its reinforcing effect.However, the width of the protruding portion that extends to the front pleats is increased. It is the same as the width, and since the contents are also filled in this protruding portion, the reinforcing effect is not sufficient. In this case, the curls K,
K is generated, and at a position slightly above the middle of the pouch 700, from the side seal portions on both sides toward the inside,
Breaking wrinkles S, S occurred, and the appearance was impaired, which was not preferable.

Next, the bottle-shaped pouch of the present invention will be described. FIG. 1 is a front view showing the configuration of a first embodiment of the bottle-shaped pouch of the present invention, FIG. 2 is a rear view thereof, and FIG. 3 is a diagram showing the contents of the bottle-shaped pouch shown in FIG. FIG. 6 is a side view showing a shape when the pouch is filled and a pouch is inflated. The upper part and the lower part of the bottle-shaped pouch 100 shown in FIGS. 1 to 3 are located between the upper part and the lower part of the front and rear wall films 1, 1 ', respectively, with the top film 2 or the bottom film facing inward. In the case of folding, top film,
Top film notches 4 and 4 are provided near the upper ends of both side edges, and in the case of a bottom film, bottom film notches 5 and 5 are provided near the lower ends of both side edges and inserted. Is formed in a shape having gusset portions 6 and 7 by a method of heat sealing with a predetermined seal pattern, and the body portion is heat-sealed at both side edges of the wall films 1 and 1 ′ with side seal portions 9 and 9. It is formed.

In the above description, the vertical length of the upper gusset portion 6, that is, the folding length of the top film, is smaller than the vertical length of the lower gusset portion 7, that is, the folding length of the bottom film. Is formed.

The lower gusset portion 7 is heat-sealed with a bottom seal portion 8 in which the inner side is formed by a curved line, that is, a bottom seal portion 8, and the front gusset portion 6 has a front pleated portion. The upper side is provided with a projecting portion 10 having a shape in which the film on both sides, that is, the wall film 1 and the upper surface film 2 opposed thereto are extended, and the width is reduced toward the upper side on both sides. Heat sealing is performed by upper seal portions 11, 11 in which both side edges of the front fold portion including the protruding portion 10 have a shape in which the inner line is connected by an inclined straight line from the base of the fold portion to the upper side of the protruding portion 10. At the same time, a spout 20 made of a plastic molded body is joined to the upper part of the protruding part 10 by thermal bonding, and the pleated part on the back side of the upper gusset part 6 has an inverted V with an obtuse inside. Character shape Seal pattern, i.e., is composed of an upper gusset portion rear side seal portion 13 (see FIG. 2) is heat sealed that.

The outlet 20 is, in this case, a cylinder 2
1, a bonding base 22 is provided at a lower portion, a flange 23 is appropriately provided thereon, and a separate screw-type cap 24 is mounted at an upper portion. The spout 20 is joined to the pouch 100 by a method in which the adhesive base 22 of the spout 20 is inserted between the films on both sides of the upper part of the protruding portion 10 of the pouch 100, and then heated and pressed. The filling of the pouch 100 with the contents is performed from the spout 20 before the cap 24 is attached. After the contents are filled and before the cap 24 is attached, the laminated film seal is formed in the opening of the spout 20. The material can be sealed by heat bonding.

By adopting such a configuration, since the portions other than the spout 20 are formed of a laminated film, the content is well preserved, light and bulky, and disposal after use is easy. And the pouch 100 filled with the contents
Since the lower gusset part 7 is heat-sealed by the bottom seal part 8 of a ship bottom shape formed by a curved line on the inside, the lower cross section has an elliptical shape, and a ring-shaped outer periphery of the bottom part. Since the legs are formed, the legs are excellent in self-sustainability and easy to handle. Also, the main body of the pouch 100
Since the upper and lower gussets 6 and 7 form a tube,
It is compact and occupies little space for its capacity, has a smart appearance similar to a shape-retaining container such as a bottle, and has an excellent display effect at stores.

Also, in the pouch form after filling the contents, since the protruding portion 10 at the top of the pouch has a trapezoidal shape in which both sides are squashed in the upper direction so that the width is narrow, the amount of contents entering this part is small. The upper gusset portion 6 also has a pleated portion on the back side, and the pleated portion is heat-sealed with a seal pattern in which the inside has an obtuse inverted V-shape, and upper edges on both sides thereof are provided. Since the portion is joined to the front fold portion by the upper film cutout portions 4 and 4,
The reinforcing effect of the upper part of the pouch is improved, the generation of wrinkles generated in the body of the pouch is eliminated, and the appearance is excellent and the form stability is good.

When the filled contents are transferred to another container, the spout 20 is opened by removing the cap 24, and the pouch 100 is inclined by aligning the opening with the opening of the container. The contents flow to the spout, and the film on both sides of the protruding portion 10, that is, the wall film 1 and the opposing top film 2 (see FIG. 3) are spread on both sides by the internal pressure, and the upper gusset part back side seal From the obtuse inverted V-shaped tip portion (apex) of the portion 13 to the base of the spout 20, the upper film 2 is bent in a ridge line shape, and the upper gusset portion 6 including the protrusion is expanded into a pyramidal funnel shape.

At this time, since the folding length of the top film of the upper gusset portion 6 is formed smaller than the folding length of the bottom film of the lower gusset portion 7, the projection 10 is also prevented from being bent outward. As a result, the funnel shape of the protruding portion is maintained with good shape retention. Therefore, the contents flow smoothly to the spout, and the contents can be safely and easily transferred to the end.

FIG. 4 is a front view showing the structure of a second embodiment of the bottle-shaped pouch of the present invention. FIG. 5 is similar to FIG.
FIG. 6 is a side view showing a shape when the contents are filled in the bottle-shaped pouch shown in FIG. The bottle-shaped pouch 200 shown in FIGS. 4 and 5 is configured by additionally providing a hole for holding or hanging the pouch in the configuration of the bottle-shaped pouch 100 shown in FIGS. For this purpose, the protruding portion 1 that joins the spout 20 out of the gusset portions 6 on the front and rear sides of the gusset portion 6 on the top of the pouch.
The heat-sealed portion at the upper edge of the pleated portion on the side where 0 is not provided, that is, the upper-side gusset portion rear-side sealed portion 13
Is further expanded upward, an enlarged seal portion 15 is extended, and a hole 16 for holding or suspending a long elliptical pouch is provided therein by punching.

By adopting such a configuration, the bottle-shaped pouch 200 has the same effect as that of the bottle-shaped pouch 100 having the configuration shown in FIGS. As shown in FIG. 5, when the gusset portion of the pouch is set to stand alone, a hole 16 for holding or suspending the pouch is formed in the upper portion of the fold portion opposite to the side where the spout 20 is joined. Enlarged seal part 15 provided
Has a shape rising upward like the enlarged portion 14.

Therefore, the hole 16 for holding or suspending is provided.
The pouch 200 can be easily carried by inserting a finger into the pouch 200. Also, when transferring the filled contents to another container, the cap 24 is removed to open the spout 20, and the holding or hanging is performed. The pouch 200 can be lifted by easily inserting a finger into the hole 16 for use, and the lower part can be supported by hand to tilt the spout 20 toward the mouth of the container. At this time, the upper surface film 2 and the wall surface film 1 below the spout 20 are automatically spread in a funnel shape by the weight of the contents, so that the contents are smoothly poured out, and the contents can be safely and easily removed to the end. Can be relocated.

FIG. 6 is a front view showing the configuration of a third embodiment of the bottle-shaped pouch of the present invention. The bottle-shaped pouch 300 shown in FIG. 6 is different from the bottle-shaped pouch 100 shown in FIGS.
, Ie, the folded length of the top film, is formed to be the same as the longitudinal length of the lower gusset portion 7, ie, the folded length of the bottom film, and the back surface of the upper gusset portion 6 The seal pattern of the side folds, that is, the seal pattern of the upper gusset part back side seal part 13 is symmetrical with the seal pattern of the lower gusset part 7, that is, the bottom seal part 8 above and below the pouch. In order to change the seal pattern into an inverted ship bottom-shaped seal pattern in which the inside is formed by a curved line, and to additionally provide a hole for holding or suspending the pouch, in this case, The upper seal portions 11, 11 on both sides of the protruding portion extended to join the spout 20 on the front fold portion are expanded right and left outward to the same width as the pouch body portion, and enlarged. Part 14, 4 is extended, and the enlarged seal portion 1
Holes 16 and 16 for holding or suspending a circular pouch are provided by punching in 5, 5.

By adopting such a configuration, the bottle-shaped pouch 300 is different from the bottle-shaped pouch 100 shown in FIGS. 1 to 3 in that the folding length of the upper surface film of the gusset portion 6 on the upper part of the pouch is smaller. The lower gusset portion 7 has a length that is the same as the folded length of the bottom film, and the seal pattern of the bottom seal portion 8 and the upper gusset portion rear seal portion 13 is vertically symmetrical. Therefore, the pouch body after filling the contents has a substantially uniform cylindrical shape in the upper and lower directions, and has a shape more like a bottle.
However, since the folding length of the upper surface film of the upper gusset part 6 is long, when pouring out the contents, the spout 2 is required.
Although the funnel-shaped portion formed below 0 is easily broken outward, the funnel shape is not so crushed, but rather the spout 20 is easily turned downward, so that the operation of transferring the contents is easy. Become.

Since the enlarged seal portions 15 on the right and left sides of the upper part of the pouch 300 are provided with holes 16 for holding or suspending the pouch, for example, a hanging string is attached to this hole. The pouch can be more easily carried. Also,
Even when the hanging string is not attached, when transferring the contents filled in the pouch to another container, a finger can be inserted into the hole to securely hold the top of the pouch, so that the contents can be safely and easily. Can be transferred.

[0060]

As described above in detail, according to the present invention, there is provided a pouch for hermetically packaging a fluid content such as a liquid material, which has good preservability of the content, is lightweight and not bulky. Disposal after use is easy, and it has a three-dimensional shape similar to a shape-retaining container such as a bottle, and is excellent in self-sustainability and form stability.
It is a bottle-shaped pouch that is safe and easy to handle, such as carrying the pouch after filling the contents, and to pour out the contents or transfer to other containers. Is easily provided.

[Brief description of the drawings]

FIG. 1 is a front view showing a configuration of a first embodiment of a bottle-shaped pouch of the present invention.

FIG. 2 is a rear view of the bottle-shaped pouch shown in FIG.

FIG. 3 is a side view showing a shape when the contents are filled in the bottle-shaped pouch shown in FIG. 1 and the pouch is inflated.

FIG. 4 is a front view showing the configuration of a second embodiment of the bottle-shaped pouch of the present invention.

FIG. 5 is a side view showing a shape when the contents are filled in the bottle-shaped pouch shown in FIG. 4 and the pouch is inflated.

FIG. 6 is a front view showing the configuration of a third embodiment of the bottle-shaped pouch of the present invention.

FIGS. 7 (a), (b) and (c) are schematic front views for explaining the shapes when the contents are filled and sealed in a bottle-shaped pouch of a comparative example, respectively.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1, 1 'Wall film 2 Top film 2a Top film fold part 3 Bottom film 3a Bottom film fold part 4 Top film cutout part 5 Bottom film cutout part 6, 7 Gusset part 8 Bottom seal part 9 Side seal part 10 Projection Part 11 Upper part seal part 12 Projection part upper seal part 13 Upper gusset part back side seal part 14 Enlarged part 15 Enlarged seal part 16 Hole for holding or hanging 20 Outlet 21 Tube part 22 Adhesive base 23 Flange 24 Cap S Folding wrinkle K curl 100, 200, 300, 500, 600, 700 Bottle pouch

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Koji Otsuka 1-1-1, Ichigaya-Kagacho, Shinjuku-ku, Tokyo Inside Dai Nippon Printing Co., Ltd. (72) Inventor Nana Sugimoto 1-chome, Ichigaya-cho, Shinjuku-ku, Tokyo No. 1 Inside Dai Nippon Printing Co., Ltd. (72) Kenichi Masuda, Inventor 1-1, Ichigaya Kagacho, Shinjuku-ku, Tokyo Inside Dai Nippon Printing Co., Ltd. (72) Takao Okada, Ichigaya Machiichi, Shinjuku-ku, Tokyo No. 1-1 F-term in Dai Nippon Printing Co., Ltd. (Reference) 3E064 AB25 AB26 BA17 BA27 BA28 BA29 BA30 BA36 BA46 BA54 BA55 BB03 BC18 EA02 EA05 EA12 EA18 EA23 FA04 FA05 FA06 HF09 HG02 HJ02 HL05 HM01 HN65 HS07 3E0A AB03 AB28 BA12A BA31A BB14A BB25A CA24 EA06 EB25 EC25 EE09 EE15 EE40

Claims (7)

[Claims] 1. A pouch which is formed of a laminated film and in which a fluid content such as a liquid material is hermetically sealed and packaged, wherein the upper and lower portions of the pouch are provided between two front and rear wall films. A film or a bottom film is formed in a form having a gusset portion which is inserted by being folded inward, and a body portion is formed by heat-sealing both side edges of the front and rear two wall films with side seal portions, In addition, the lower gusset portion is heat-sealed with a seal pattern having a shape imparting autonomy, and the upper gusset portion has front and rear folds, and the upper gusset has a film on both sides. That is, a protrusion is formed by extending the wall film and the upper surface film opposed thereto so that both sides are narrowed in an upward direction, and both side edges of the protrusion are the pleated portions. of Together are heat sealed at the upper seal portion having a shape which leads to the upper side of the protruding portion from the part, a bottle-shaped pouch projecting portion spout consisting molding of plastic on top of is characterized in that it is joined. 2. The bottle according to claim 1, wherein the fold portion on the side where the protrusion is not provided is heat-sealed with a seal pattern in which the inside is convex toward the upper direction. Shaped pouch. 3. The bottle-shaped pouch according to claim 2, wherein the seal pattern in which the inside is convex toward the upper direction is a seal pattern in which the inside has an obtuse inverted V-shape. 4. The gusset portion according to claim 1, wherein a folding length of the upper film of the upper gusset portion is smaller than a folding length of the lower film of the lower gusset portion. A bottle-shaped pouch as described. 5. An inner line of an upper seal portion for heat-sealing both side edges of the fold portion on the side where the protrusion is provided, the line extending from both base portions of the fold portion to the upper side of the protrusion.
The bottle-shaped pouch according to any one of claims 1 to 4, wherein the bottle-shaped pouch is formed in a shape connected by an inclined straight line. 6. A seal pattern having a shape that imparts independence to the lower gusset portion is a bottom-shaped seal pattern in which a central portion is low and becomes higher toward both end portions. 6. A bottle-shaped pouch according to any one of claims 1 to 5. 7. A hole for holding or suspending the pouch is provided in one of the heat seal portions on the upper peripheral edge of the pouch or in an enlarged seal portion obtained by expanding the heat seal portion. The bottle-shaped pouch according to any one of claims 1 to 6, wherein: