JPH1191807A - Pouch with spout - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pouch with a spout, which is flat in shape when it is made into a bag, which can be easily formed with a cylindrical spout superior in shape retention after contents such as liquid is filled, and with which the contents can be safely and easily transferred to a bottle, etc., with a small diameter mouth. SOLUTION: This pouch 200, whose peripheral end edge part is heat sealed, is provided with, in one part of the pouch periphery, a spout 6 whose periphery is sealed with a spout heat seal part 4, and the inner face of the spout 6 is provided with a heat shrink film 20 which is shaped to run across a liquid channel, and both of its ends are fixed by the both side parts of the spout heat seal part 4. It is desirable that the side part of the spout is provided with cut off parts 8, 9 and a notch 10, etc., as a processed part for easy opening.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pouch with a spout, which is used for hermetically packaging contents having fluidity such as a liquid and transferring the contents to another container at the time of use. The pouch is provided with a spout section in a part of the periphery of the pouch so that it can be safely and easily transferred to a small-bore container such as a bottle. The present invention relates to a pouch with a spout to which a heat-shrinkable film for stably opening an outlet is fixed.

[0002]

2. Description of the Related Art Conventionally, a pouch that is used for packaging contents having fluidity such as liquid in a hermetically sealed manner and transferring the contents to another container at the time of use is self-supporting and has some features as a three-dimensional container. The spout is formed mainly in the corner of the upper part of the pouch so that the standing pouch is mainly used and the contents can be safely transferred to another container during use. For example, a separate spout is attached to a part of the upper part of the pouch by heat bonding.

[0003]

However, the method of attaching a separate spout made of a plastic molding or the like to a part of the upper part of the pouch can transfer the contents safely and easily, but the number of manufacturing steps increases. The spout itself is costly, and the pouch with the spout is thicker and heavier, which increases the cost of storing and transporting empty pouches. This requires a filling device, the number of empty pouches loaded into the feeder of the filling machine has been greatly reduced, and the operator has to frequently supply empty pouches. There was a problem that complexity increased.

[0004] In addition, in the method of forming a spout at a part such as a corner of the upper part of the pouch, the operability and safety when transferring the contents are improved to some extent, but the filling capacity is relatively small. For large pouches, it is necessary to hold the pouch with both hands. There were still problems in terms of safety and ease of transfer, such as jumping out and spilling out of the contents.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to facilitate the production of pouches, to prevent the spout from becoming bulky, and to fill the contents. It is easy to use, and when used, the open state of the spout can be kept stable. Even small bottles can be safely and easily transferred to the end without spilling the contents. An object of the present invention is to provide a pouch with a spout that is inexpensive and has excellent usability with good productivity.

[0006]

The above objects can be attained by the present invention described below. That is, according to the invention described in claim 1, in a pouch in which the peripheral edge is sealed by heat sealing and the content having fluidity is hermetically sealed, a spout is provided in a part of the periphery of the pouch. ,and,
A heat-shrinkable film is fixed to the inner surface of the spout, and the pouch has a spout.

The heat-shrinkable film fixed to the inner surface of the spout is mounted to open a flat spout due to shrinkage. Therefore, a strip-shaped heat-shrinkable film is arranged on the inner surface of the spout so as to bridge the liquid passage, and when the outer periphery of the spout is heat-sealed, the heat-sealed portions on both sides thereof are heat-sealed. The heat-shrinkable film can be easily fixed by heat sealing so as to bite both side edges of the shrinkable film. In the case where it is difficult to heat-bond the inner surface of the spout and the heat-shrinkable film, a cutout may be provided at a part of the joint of the heat-shrinkable film, and the heat-shrinkable film may be fixed at this portion. Further, a heat sealing agent or the like can be applied to the joint of the heat-shrinkable film to improve the thermal adhesiveness.

[0008] By adopting such a configuration, the spout portion is not particularly bulky, so that the pouch can be handled in the same manner as a normal pouch when storing or transporting the pouch, and when filling the contents. In addition, it is possible to efficiently fill and seal the contents without loading the pouch into the feeder portion of the filling and sealing machine without extra work. Also,
Since the heat-shrinkable film is fixed to the inner surface of the spout, only the heat-shrinkable film shrinks by heating this part. The outlet is opened in a cylindrical shape.
The opening of the spout by heating the heat-shrinkable film can be carried out in-line with the filling and sealing of the contents by incorporating a heating device into the filling and sealing machine. It can also be performed by a person using hot water or hot air such as a dryer.

The spout opening thus opened in a cylindrical shape has rigidity added since both ends in the width direction are pulled toward the center by a constant width by the internal heat-shrinkable film. Excellent shape retention. Therefore, even when the contents are transferred to another container such as a bottle, the spout can be stably fixed to the mouth of the container, and the spout does not become blocked during the pouring. The contents can be transferred safely and easily up to now.

[0010] The invention described in claim 2 is characterized in that at least one side of the spout is provided with a notch for fixing the spout to the mouth of the container. Item 1. The pouch with an outlet according to Item 1.

By adopting such a configuration, in addition to the functions and effects of the invention described in claim 1, when transferring the contents filled in the pouch to a container such as a bottle,
Since the notch provided on the side of the spout can be applied to the mouth of the container, the spout is more securely fixed to the mouth of the container, and the contents can be safely and easily transferred. Can be.

According to a third aspect of the present invention, there is provided the pouch with an outlet according to the first or second aspect, wherein an easy-open processing section is provided at the outlet.

The easy-opening section can be applied not only to a notch, which is frequently used in ordinary pouches, but also to a half-cut line by laser light irradiation or the like.
The half-cut line cuts a part of the layer structure of the laminated film, such as a base film layer on the surface, and is provided according to the cut line. As the notch, an I-shaped or V-shaped notch is usually used, but the shape is not particularly limited, and any shape having an acute angle portion in a cutting direction can be used. The notch and the half-cut line may be used alone or in combination.

By adopting such a configuration, in addition to the functions and effects of the invention described in claim 1 or 2,
When using a pouch with a spout filled with contents, the heat seal part at the tip of the spout is easily cut off by hand only at the desired position using the easy-opening processing part, and the spout is opened. can do.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a pouch with a spout according to the present invention, such as a material used for producing the pouch and a bag making method thereof, will be described below. First, as the film used for the main part of the pouch with a spout of the present invention, a laminated film mainly composed of plastic is used, but is not particularly limited, and a known laminated film used for various pouches is Any of these can be used, and from these, those suitable for use conditions such as the type of contents to be packed and the presence or absence of heat treatment after filling can be freely selected and used. Specific examples of the configuration of the laminated film that can be preferably used include the following.

(1) ON film / adhesive / L·LDPE
Film (sealant layer) (2) ON film / adhesive / uniaxially stretched HDPE film / adhesive / L·LDPE film (sealant layer) (3) ON film / adhesive / uniaxially stretched PP film / adhesive / L·LDPE Film (sealant layer) (4) ON film / adhesive / uniaxially stretched PP film / adhesive / aluminum foil / adhesive / L / LDPE film (sealant layer) (5) ON film (silica vapor deposition layer) / adhesive / Uniaxially stretched HDPE film / adhesive / L-LDPE film (sealant layer) (6) ON film / anchor coat layer / co-extrusion coat layer (HDPE layer / L-LDPE layer) (sealant layer is L-LDPE layer) (7) ) ON film / anchor coat layer / coextrusion 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, 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 2 The axially 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 construction of the laminated film described above,
Films and PET films are used as base films to impart mechanical strength and printability to pouches,
The direction of tearing can be further stabilized by using the film and the uniaxially stretched PP film so that the stretching direction matches the tearing direction when the pouch is opened. And aluminum foil, silica deposition layer,
An EVOH film or the like is laminated to provide gas barrier properties.

Further, 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, depending on the content to be filled, ethylene / α-olefin copolymer, ethylene / vinyl acetate copolymer, ethylene / acrylic acid copolymer, ethylene / acrylic ester copolymer may be used. Polymers, ionomers, polyester resins and the like can also be appropriately selected and used.

Particularly, an ethylene / α-olefin copolymer obtained by polymerization using a metallocene catalyst has a narrow molecular weight distribution and a stable copolymerization ratio, and thus has a low-temperature heat sealing property and a hot sealing property. It is suitable for a sealant layer of a pouch having a step due to a difference in film overlap with a heat seal portion such as a standing pouch in that a pinhole due to a missing seal can be prevented. Furthermore, by using a blend of the copolymer and an olefin elastomer, the heat fluidity of the sealant layer is improved, and the generation of pinholes due to the step can be more effectively prevented.

Next, the heat-shrinkable film fixed to the inner surface of the spout of the pouch with the spout according to the present invention will be described. The material of the heat-shrinkable film is not particularly limited. For example, any known heat-shrinkable film made of polyethylene terephthalate-based resin, polypropylene-based resin, polyvinyl chloride-based resin, fluorine-containing polymer, or the like can be used. .

However, in the present invention, the heat-shrinkable film is attached to the inner surface of the spout, and the object is to shrink the spout in the width direction to open the spout in a cylindrical shape. Things. Therefore, the heat-shrinkable film preferably does not shrink in the length direction of the spout portion, and is preferably a uniaxially stretched heat-shrinkable film. The ideal heat shrinkage is 36%, but if it is 20% or more, the object can be sufficiently achieved. The thickness of the heat-shrinkable film is preferably about 30 to 100 μm, more preferably 40 to 80 μm, from the viewpoint of shrinkage stress and suitability for mounting.

A method of manufacturing a pouch with a spout of the present invention, which is manufactured using the above-described laminated film and heat-shrinkable film, will be described. As described above, the pouch with a spout of the present invention has a main feature in the configuration of the spout portion provided in a part of the upper part of the pouch and the vicinity thereof, and the form of the pouch body is There is no particular limitation,
For example, in addition to flat pouches such as a three-sided seal type, a four-sided seal type, and a pillow type, any form such as a gusset pouch and a standing pouch can be adopted.

Therefore, in order to form a pouch with a spout according to the present invention, a conventionally known bag making machine can be used depending on the form of the main body, and a heat shrinkable film is attached thereto. Also, the spout, cutout, and
Necessary processing equipment such as a heat shrinkable film mounting device, heat sealing device, trimming device, and punching device for providing an easy opening processing unit such as a notch should be incorporated in-line, or a part of it should be prepared on another line. Thereby, the pouch with a spout of the present invention can be easily manufactured by either an inline or off-line method.

In the pouch with a spout according to the present invention, for example, even when the spout is provided in a part of the upper part of the pouch, the contents are filled from the upper part of the pouch as an opening. Can be filled. In some cases, an opening may be provided in a side portion or a bottom portion of the pouch, and the pouch may be filled through the opening.

[0027]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below more specifically with reference to the drawings. However, the present invention is not limited to these drawings. Further, the same reference numerals are used for the parts having the same names in different drawings.

FIGS. 1 and 2 are front views each illustrating the structure of an embodiment of a pouch with a spout according to the present invention. FIGS. 3A, 3B, and 3C are diagrams illustrating the configuration of one embodiment of the heat-shrinkable film fixed to the inner surface of the spout portion of the pouch with a spout according to the present invention. It is.

In FIG. 1, the pouch 100 with a spout is
The main body part is formed in a standing pouch form, the bottom 1 is formed in a gusset form in which the film is folded inward according to a conventional method, and near the lower end on both sides of the film folded inward, a semicircle or the like is formed. A notch (not shown) is provided, and the bottom 1 is heat-sealed by the bottom heat-sealing portion 2 using a boat-shaped sealing pattern, thereby providing self-sustainability. The body of the pouch is formed by heat-sealing both side edges of the front and rear wall films with body heat-seal portions 3, 3 '.

The outer periphery of a part of the upper part of the pouch (the left edge in the figure) is a heat-sealing part 4 for an outlet.
A spout 6 is provided, the inside of which is communicated with the inside of the pouch main body, and a heat-shrinkable film 30 is disposed in a part of the inner surface of the spout 6 serving as a liquid passage. The both side edges are heat-sealed and fixed together with the side of the spout outlet heat seal portion 4. Further, a V-shaped notch 10 is provided as an easy-opening processing portion at an edge near the tip of the spout side heat seal portion 4 on the side of the pouch, thereby facilitating opening of the spout portion 6. At the same time, a cut line 7 having a circular cutout at the tip is provided on the side of the pouch center side, and the opening of the spout 6 and the movement of the spout 6 when the contents are poured out. It is configured to be flexible.

In the above description, the size (width,
The length and the like are not particularly limited, and can be freely determined in an appropriate range according to the size of the mouth of the container in which the contents are transferred. Further, the upper heat seal portion 5 is unsealed and open at the bag making stage, and the contents are filled from this portion, and then heat sealed with the seal pattern of the upper heat seal portion 5 to perform hermetic packaging. be able to.

By adopting such a configuration, in the pouch 100 with a spout before filling the contents, the spout 6 is also flat and not particularly bulky, and the width of the upper heat seal portion 5 as an opening is sufficient. Because of its large size, the contents can be easily filled from this portion by a filling and sealing machine and heat sealed in the same manner as a normal pouch.

The opening of the spout 6 formed by the heat-shrinkable film 30 is heated at the same time or immediately after the filling of the contents, by heating the shrinkable portion of the heat-shrinkable film 30 to shrink it. It is preferable to open the tube 6 in a cylindrical shape in that the user's hand does not need to be troubled.

Pouch 10 with spout filled with contents
0 is self-supporting, easy to handle, and excellent in appearance. In addition, when the contents are transferred to another container such as a bottle, if the spout 6 is previously opened in a cylindrical shape, the tip of the spout 6 is simply torn using the notch 10 and opened. Thus, the contents can be transferred.

At this time, since the cut line 7 is provided on the side of the pouch center 6 on the side of the pouch, the spout 6 can be easily inserted into the mouth of a container such as a bottle, or inserted into the mouth. The contents can be safely and easily transferred to the end in a stable state without blocking the spout during the pouring.

The pouch 200 with a spout shown in FIG.
The main body portion (bottom and trunk) heat seals the edges of the front and rear two wall films with the bottom heat seal 2 and the body heat seals 3, 3 'similarly to the four-sided seal type pouch. It is formed. A part of the upper part of the pouch, that is, a corner part, is sealed with a spout part heat seal part 4 to provide an obliquely upward spout part 6, and the inside communicates with the inside of the pouch body. At the same time, a heat-shrinkable film 20 is disposed in a portion of the inner surface of the spout portion 6 which becomes a liquid passage, and both side edges thereof are heat-sealed and fixed together with the side portions of the spout portion heat seal portion 4. Have been. Also, both sides of the spout 6 are cut out in the shape of cutouts 8 and 9, respectively, and the edge near the tip of the side of the pouch of the spout heat seal 4 is V-shaped.
It has a notch 10 in the shape of a letter.

In this case also, the size of the spout 6 is
As in the case of FIG. 1, it can be appropriately determined according to the size of the mouth of the container in which the contents are transferred.
Regarding the filling of the contents, the remaining portion except the portion provided with the spout 6 above the pouch, that is, the portion of the upper heat seal portion 5 is an unsealed opening at the bag making stage. Then, the contents are filled from this portion, and thereafter, the contents are heat-sealed with the seal pattern of the upper heat-sealing portion 5 and hermetically sealed and packaged.

By adopting such a configuration, the body of the pouch is a flat pouch of a four-sided seal type, so that the pouch is not self-supporting, and has a spout shown in FIG. 1 in terms of ease of handling and appearance. Although slightly inferior to pouches, it has advantages in terms of productivity and economy. In addition, the filling suitability, the tubular opening of the spout 6, the retention of the opening, the opening property when transferring the contents, the operability of the pouring, the safety, and the like are shown in FIG. Pouch with exit 10
The same operation and effect as in the case of 0 can be obtained.

Next, with reference to FIG. 3, the configuration of a typical embodiment of the heat-shrinkable film fixed to the inner surface of the spout of the pouch with the spout according to the present invention will be described. The heat-shrinkable film 20 shown in FIG. 3A has a rectangular outer shape, and a cutout portion 11 is provided at the center thereof, and both ends of the cutout portion 11 are heat-sealed portions 13. Is formed so as to partially enter the region. And
When the heat-shrinkable film 20 is attached to the inner surface of the spout of the pouch, the heat-seal portions 13 on both sides are part of both sides of the heat-seal portion of the spout (the width of the heat-seal portion on the side). (Approximately の of this) is disposed on the inner surface of the spout so that when the heat sealing of the heat sealing portion is performed, the heat sealing is simultaneously performed and fixed.

By adopting such a configuration, even when the heat-shrinkable film 20 and the inner surface (sealant layer) of the laminated film at the spout are poor in thermal adhesion, both ends of the cutout 11 are heat-treated on both sides. Since it is formed so as to penetrate a part of the area of the seal part 13, in this part,
Inner surface of the laminated film on both sides of the spout (sealant layer)
Since they are in contact with each other and are heat-sealed, the heat-shrinkable film 20 can be firmly fixed.

In the case where the heat-shrinkable film 20 and the inner surface of the laminated film at the spout are poor in thermal adhesiveness, a heat-sealing agent is applied to the surface of the heat-shrinkable film 20 (not shown). By applying it in advance, its thermal adhesion can be improved. Such a method is not limited to the case of the heat-shrinkable film 20, and can be similarly performed on the heat-shrinkable films 30 and 40 having the configurations shown in FIGS. 3B and 3C described below. it can. The formation of the cutout portion and the application of the heat sealing agent as described above,
Each of them may be used alone, or both may be used in combination. When both are used together, the heat-shrinkable film can be more firmly fixed to the inner surface of the spout.

The heat-shrinkable film 3 shown in FIG.
In the case of 0, the shape of the cutout portion is changed to a spot shape (a circular spot in the figure) to form the cutout portion 12, and the position where the cutout portion is provided is changed to a position closer to the inside thereof in the region of the heat seal portions 13 on both sides. It is composed. The size of the cutout portion 12 is appropriately about 2 to 3 mm in diameter in the case of a circular shape, and the number thereof can be appropriately determined by the length of the heat seal portion 13 in the vertical direction.

Even when such a configuration is adopted, the laminated films on both sides of the spout portion are heat-sealed by contacting their inner surfaces (sealant layers) in each cut-out portion 12, so that they are firmly adhered. , Heat shrinkable film 30
Can be securely fixed to the inner surface of the spout. In addition, since the heat-shrinkable film 30 of this embodiment has no cutout at the center, the heat-shrinkable film can be effectively used, and its width (length in the length direction of the spout portion) is reduced. can do.

The heat-shrinkable film 4 shown in FIG.
0 designates the cutout portion as a cutout portion 11 at the center,
It is constituted by spot-shaped cutouts 12 in heat seal portions 13 on both sides.

By adopting such a configuration, the area of the adhesive portion between the films on both sides of the spout in the heat seal portion 13 can be increased, and therefore, for example, the heat shrinkage shown in FIG. The heat-shrinkable film 40 can be more firmly fixed to the inner surface of the spout as compared with the conductive film 20.

The above-mentioned method of fixing the heat-shrinkable film to the inner surface of the spout portion of the pouch is performed, for example, as described above, by attaching the heat-shrinkable film to the inner surface of the spout portion at the time of bag making. Can be fixed at the same time by heat-sealing the spout heat-seal portion. However, as another method, for example, a pouch with a spout having a configuration shown in FIGS. 1 and 2 is used. For example, a heat sealant is applied in advance to the heat seal portions 13 on both side edges of the heat shrinkable film, and a spout portion corresponding to one of inner surfaces of the laminated film on both sides of the pouch. This is heat-sealed and adhered to a predetermined position, and the heat-sealing of the heat-sealing part 4 is not performed at the bag making stage, but the opening is formed together with the adjacent upper heat-sealing part 5 to form an opening. filling To, by performing a heat sealing together with the upper heat-sealed portion 5 a spout portion heat-sealed portion 4,
The heat-shrinkable film can be fixed. By adopting such a method, the entire upper part of the pouch can be used as an opening, so that there is an advantage that the contents can be more easily filled as in the case of a normal pouch.

Test Example 1 A pouch with a spout (standing pouch type) having the structure shown in FIG. 1 was prepared, and a heat-shrinkable film fixed to the inner surface of the spout 6 was prepared as shown in FIG. A pouch with a spout of Test Example 1 was produced by using the type shown in b) and setting the film configuration of the pouch, the material of the heat-shrinkable film, and the dimensions of each part as follows.

The pouch film includes a PET film (thickness: 12 μm) and an L·LDPE film (thickness: 120 μm).
μm) was commonly used for the wall surface film and the bottom surface film by laminating a laminated film according to a conventional method with a dry lamination method. As the heat shrinkable film, a polyethylene terephthalate shrink film (uniaxially stretched, heat shrinkage 35%) having a thickness of 60 µm was used.

The outer dimensions of the pouch are 150 mm in width and 220 mm in length, and the height of the folded portion of the bottom film is 4 mm.
0 mm, the bottom heat-seal portion 2 is heat-sealed with a boat-shaped seal pattern according to a conventional method to form a standing pouch-type bottom 1, and the trunk heat-seal portion 3.
3 ′ was heat-sealed with a seal width of 6 mm.

The spout 6 provided at the left end of the upper part of the pouch
Is 30 mm in length, 45 mm in width (distance from the left end of the pouch to the cut line 7), the seal width on both sides of the heat seal portion 4 is 7 mm, and the seal width on the upper portion is 6 mm. And Accordingly, the effective width of the liquid passage of the spout 6 is 31 mm.

The heat-shrinkable film 30 (see FIG. 3B) attached to the inner surface of the spout 6 has an outer shape of 12 m in length.
m, a rectangle of 39 mm in width, heat-sealed parts 1 on both sides
3 was 4 mm in width, and two circular cutouts 12 each having a diameter of 2.5 mm were provided at equal intervals in the vertical direction so as to be in contact with the inner line of the heat seal portion 13. The heat-shrinkable film 30 was placed at the center of the inner surface of the spout 6 at a position 12 mm below the upper end, and was heat-sealed and fixed by the heat-sealing section 4 of the spout. A V-shaped notch 10 was provided at a position 9 mm below the upper end at the left end of the spout 6.

As described above, the pouch with a spout of Test Example 1 in which the upper heat seal portion 5 is opened unsealed was prepared, and 500 ml of a liquid detergent was filled as a content from the upper opening portion. The upper heat seal portion 5 was heat-sealed and sealed with a shape seal pattern. Thereafter, the spout 6 was immersed in hot water at 90 ° C. to shrink the heat-shrinkable film, and the spout 6 was opened in a tubular shape to obtain a package of Test Example 1. (Production of 20 Samples) The bulging portion of the opened spout 6 had an average of 14 mm across.

The above package did not hinder its independence even after storage at 40 ° C. for 3 months, had a good appearance, and did not show any leakage of its contents. Further, in order to test the suitability for use, the tip of the spout 6 of the pouch is cut off and opened using the notch 10, and then the outer diameter of the mouth is 26 mm and the inner diameter is 2 mm.
When the tip of the opened spout was slightly inserted into the mouth of the 2 mm plastic bottle and the contents were transferred by gradually tilting the pouch, the spout was smoothly filled without blocking the spout. And the contents could be safely and easily transferred to the end. Also,
At the time of opening the opening 6, there was no particular problem with the opening property of the notch 10, and the opening could be opened satisfactorily.

Test Example 2 In the construction of the pouch with a spout of Test Example 1, only the heat-shrinkable film attached to the inner surface of the spout 6 was subjected to heat shrinkage of the type shown in FIG. A pouch with a spout of Test Example 2 was produced in the same manner as in the pouch with a spout of Test Example 1 except that the pouch with a spout was changed. (Production of 20 samples)

The material, thickness and outer dimensions of the heat-shrinkable film 20 are the same as those of the heat-shrinkable film 3 of Test Example 1.
0, and only the cutout 12 is 6 mm long and 3 mm wide.
Instead of a rectangular cutout 11 of 6 mm, this is provided at the center of the heat-shrinkable film. In this case, the sizes of the portions that enter the heat seal portion 13 on both sides of the cutout portion 11 are 6 mm long and 2 mm wide, respectively.
5 mm.

In the same manner as in the pouch of Test Example 1, the above pouch was filled with 500 ml of a liquid detergent from the upper opening, and then the upper heat seal portion 5 was heat-sealed with a predetermined shape of seal pattern to be sealed. Thereafter, the spout 6
Was immersed in hot water at 90 ° C. to shrink the heat-shrinkable film, and the spout 6 was opened in a cylindrical shape to obtain a package of Test Example 2. (Production of 20 samples) The bulging portion of the opened spout 6 has an average of 1 across.
6 mm.

The package of Test Example 2 was also
A preservation test and a test of suitability for use were performed in the same manner as in Test Example 1. The self-sustainability was good even after the preservation test, and there was no leakage of the contents. It has good openability and shape retention of the opened spout. Like the pouch with the spout in Test Example 1, the spout does not close during the pouring into the plastic bottle, and the contents are Things could be safely and easily transferred to the end.

[0058]

As is apparent from the above description, according to the present invention, the bag can be formed into a flat shape, and the filling of the contents can be easily performed without any trouble. In addition, the opened spout is excellent in shape retention, and the spout can be safely and easily transferred to the end without the pouring opening being blocked during pouring. This has the effect of providing a pouch with a high productivity.

[Brief description of the drawings]

FIG. 1 is a front view illustrating the configuration of an embodiment of a pouch with a spout according to the present invention.

FIG. 2 is a front view illustrating the configuration of another embodiment of the pouch with a spout according to the present invention.

FIGS. 3 (a), (b), and (c) are diagrams illustrating a configuration of an embodiment of a heat-shrinkable film fixed to an inner surface of a spout portion of a pouch with a spout according to the present invention. is there.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bottom part 2 Bottom heat seal part 3, 3 'trunk heat seal part 4 Injection part heat seal part 5 Top heat seal part 6 Injection part 7 Cut line 8, 9 Notch part 10 Notch 11, 12 Cutout part 13 Heat Seal part 20, 30, 40 Heat shrinkable film 100, 200 Pouch with spout

Claims (3)

[Claims] 1. A pouch in which a peripheral edge is sealed by heat sealing and a fluid content is hermetically sealed and provided with a spout portion at a part of the periphery of the pouch, and the spout. A pouch with a spout, wherein a heat-shrinkable film is fixed to an inner surface of the portion. 2. The method according to claim 1, wherein at least one side of the outlet is provided with:
The pouch with a spout according to claim 1, characterized in that a cutout for fixing the spout to the mouth of the container is provided. 3. The pouch with a spout according to claim 1, wherein an easy-open processing section is provided in the spout.