JPH1159699A - Refill pouches - Google Patents

Abstract

(57) [Summary] [Problem] It is easy to make a bag and fill the contents such as liquid,
An inexpensive pouch for refilling which can be easily opened at the time of use and which can transfer contents safely and easily to small-diameter containers such as bottles and has excellent usability is provided with high productivity. SOLUTION: In a pouch having a peripheral edge portion sealed by heat sealing, a spout portion 6 is provided in a part of an upper portion of the pouch, and a smooth curve is formed on both sides of the spout portion 6. Notches 7 and / or irregularities 8 on the inner surface of the film at the spout to improve the openability.
Are provided to form the refill pouch 60. It is preferable that the upper heat seal portions 5 on both sides of the spout portion 6 are heat-sealed in a shape having a downward slope, and the spout portion 6 is preferably provided with a notch 9 or the like as an easy-opening processing portion.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refill pouch in which fluid contents such as liquid, viscous body, powder and the like are sealed and packaged, and the contents are transferred to another container when used. When transferring the contents to another container such as a bottle, provide a spout that matches the diameter of the container so that the contents can be transferred safely and easily without spilling the contents. Easy to fix to the part,
The present invention also relates to a refill pouch having an improved spout opening property.

[0002]

2. Description of the Related Art Conventionally, standing pouches which are self-supporting and have some of the features of a three-dimensional container are mainly used as refill pouches for hermetically packaging contents having fluidity such as liquid, and , So that the contents can be safely transferred to another container without spilling out during use,
A method of forming an opening in a part such as a corner part instead of the entire upper part of the pouch, or a method of forming a small-diameter spout part in a part of the upper part of the pouch, or a separate spout by a plastic molded product or the like Was attached to a part of the top of the pouch by heat bonding.

[0003]

However, the method of attaching a separate spout made of a plastic molded article to a part of the upper part of the pouch requires an additional manufacturing process, and the spout itself becomes expensive. Since the attached empty pouch is thicker, the cost of storage and transportation is also expensive, and furthermore,
When filling the contents, special filling equipment is required, the number of empty pouches stacked in the feeder of the filling machine is greatly reduced, and the operator needs to frequently supply empty pouches. As a result, there is a problem that the cost increases and the complexity of the process and the operation increases.

[0004] In the method of forming a small-diameter spout in a part of the upper part of the pouch, the operability and safety when transferring the contents are improved to some extent, but the position of the spout is apparent. It is difficult to understand, and the fixation of the spout to the mouth of the container to be relocated is insufficient, and the contents may be accidentally spilled during the pouring of the contents, making the relocation easy and safe. There was still a problem in terms of

The present invention has been made in order to solve such a problem, and an object of the present invention is to eliminate the need for a separate spout of a molded article or the like, and to provide a similar pouch as a normal pouch. It can be manufactured with good productivity in the process, the contents can be easily filled, and when used, the contents can be safely and easily transferred to small bottles without spilling outside. It is an object of the present invention to provide a refillable pouch that is inexpensive and excellent in suitability for use with good productivity.

[0006]

The above objects can be attained by the present invention described below. That is, the invention described in claim 1 is a pouch in which the peripheral edge is sealed by heat sealing and the content having fluidity is hermetically sealed, and provided with a spout in a part of the upper part of the pouch, In addition, the refill pouch is characterized in that a notch formed with a smooth curve is provided in the heat seal portion on the upper side of the pouch on both sides of the spout.

According to a second aspect of the present invention, there is provided a pouch in which a peripheral edge is sealed by heat sealing and a fluid content is hermetically packaged. And a pouch for refilling, characterized in that irregularities for improving the opening property are provided on the inner surface of the film at the spout.

According to a third aspect of the present invention, in a pouch in which a peripheral edge is sealed by heat sealing and a fluid content is hermetically sealed, a spout portion is provided at a part of an upper portion of the pouch. And a notch formed with a smooth curve is provided in the heat seal portion on the upper side of the pouch on both sides of the spout portion, and the opening property is improved on the inner surface of the film of the spout portion. Of a refillable pouch, characterized by being provided with irregularities.

According to a fourth aspect of the present invention, the heat seal portions at the upper portions of the pouches on both the left and right sides of the spout portion are heat-sealed in a shape having a downward slope. A refill pouch according to any one of the above.

According to a fifth aspect of the present invention, there is provided the refillable pouch according to any one of the first to fourth aspects, wherein an easy-opening processing section is provided at the spout.

In the present invention, the size of the spout provided in a part of the upper part of the pouch is not particularly limited. However, in use, the heat seal portion at the tip of the spout is cut out and opened. In this case, it is preferable that the size is such that the tip of the spout opening at the mouth of the container for transferring contents can be inserted. In addition, the notch formed by a smooth curve provided on the heat seal part on both sides of the spout part makes the spout part protrude, clarifies its position, gives a soft feeling to the appearance, and opens it The spout is transferred so that it can be smoothly introduced into the mouth of the container to be replaced, and the spout is provided to be fixed to the mouth of the container in a stable state, and has a shape suitable for this purpose. If so, it can be formed in any shape.

The irregularities provided on the inner surface of the film at the spout are provided to improve the opening property of the spout, and a convex portion may be provided in advance by printing or the like. It is simple and preferable to form a dot-like or stripe-like shape at a predetermined position so that the inner surface becomes a convex portion at a stage before laminating the laminated films by a method such as embossing. Such irregularities are
It may be provided on only one surface of the film of the spout portion, or may be provided on both surfaces.

As the easy-opening processing section provided in the spout port, any of notches often used in ordinary pouches and half-cut lines by laser light irradiation or the like can be applied. In the case of 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 the cutting direction can be used. The notch and the half-cut line may be used alone or in combination.

Hereinafter, the operation and effect of the configuration will be described for each invention described in the above claims. By using the configuration of the invention described in claim 1, when using a refill pouch filled with contents and sealed, cutouts formed with smooth curves are provided on both sides of the spout. As a result, a soft feeling is added and the appearance is excellent, and the position of the spout can be identified at a glance. In addition, the opened spout can be smoothly guided and inserted into the mouth of a container such as a bottle for transferring contents, and the spout can be securely fixed to the mouth of the container, which is safe and The contents can be easily transferred.

According to the second aspect of the present invention, when using a refillable pouch filled and sealed with contents, the heat sealing portion at the tip of the spout is cut off and opened. Since the inner surfaces of the film at the spout are not in close contact with each other, the spout is easily opened, and the contents can be safely and easily transferred to a small-diameter bottle or the like.

The third aspect of the present invention is the first aspect of the present invention.
The configuration of the invention described in claim 2 is added to the configuration of the invention described in claim 2. By adopting such a configuration, in addition to the actions and effects of the invention described in claim 1, a note The opening property of the outlet portion is improved, and the operation of transferring the contents can be more easily performed.

By adopting the structure of the invention described in claim 4, in addition to the functions and effects of the invention described in claims 1 to 3, when the contents are transferred to a bottle or the like, the residual liquid is left in the pouch. Is transferred so as not to cause
Since the opening of the spout can be easily maintained and the spout can be prevented from being blocked halfway, it can be more safely and easily transferred to the end.

According to the fifth aspect of the present invention, in addition to the functions and effects of the first to fourth aspects of the present invention, it is necessary to use tools such as scissors when opening the spout. Therefore, the heat seal portion at the tip of the spout can be easily cut off and opened at a desired position by hand alone.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of a film used for producing a refill pouch of the present invention and a bag making method thereof will be described. First, a film used for manufacturing the refill pouch of the present invention is mainly a laminated film mainly composed of plastic, but is not particularly limited, and any known laminated film used for various pouches may be used. Can be used. From these, suitable ones can be freely selected and used according to the use conditions such as the type of contents to be packaged and the presence or absence of heat treatment after filling. 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 description, 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, ON
Films and PET films are used as base films to impart mechanical strength and printability to pouches,
By using the film and the uniaxially stretched PP film so that the stretching direction matches the tearing direction when opening the pouch, the directionality of the tearing can be further stabilized. Then, an aluminum foil, a silica vapor-deposited layer, an EVOH film, and the like are laminated to provide gas barrier properties. In addition, as the sealant layer, two examples of an L-LDPE film and a CPP film have been described. However, the L-LDPE film has heat sealing stability and content resistance, such as stress cracking resistance to a surfactant. The CPP film is excellent in heat resistance and low odor, and is suitable for packaging of contents requiring these properties.

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 acid ester copolymer may be used. Polymers, ionomers, polyester resins and the like can also be appropriately selected and used. In particular, ethylene-α-olefin copolymers polymerized using metallocene catalysts have excellent low-temperature heat sealability and hot sealability because the molecular weight distribution is narrow and the copolymerization ratio is stable. It is suitable for a sealant layer of a pouch such as a gusset pouch or a standing pouch having a step due to a difference in film overlap with a heat seal portion in that a pinhole due to a missing seal can be prevented. Furthermore, by using the copolymer blended with an olefin elastomer,
The heat fluidity of the sealant layer is improved, and the generation of pinholes due to the steps can be more effectively prevented.

Next, a method of manufacturing the refill pouch of the present invention, which is manufactured using the above-described laminated film, will be described. As described above, the refill pouch of the present invention has its features in the configuration of the edge portion such as the top of the pouch, and the form of the pouch main body is not particularly limited. Any form such as a flat pouch such as a four-sided seal type and a pillow type, a gusset pouch, and a standing pouch can be adopted. However, in the case of pillow pouches and gusset pouches, if the spouting portion overlaps the position of the back seal portion, the opening property of the spout portion may be impaired, and in such a case, for example, the back seal portion Can be shifted.

Therefore, conventionally known bag-making machines can be used for the bag-making of the refill pouch according to the present invention, depending on the form of the main body portion. In order to provide an easy-open processing section such as a notch, a notch, etc., for example, an embossing device, a punching device, a trimming device, or other necessary processing devices are incorporated in-line, or by preparing these on a separate line, Alternatively, the refill pouch of the present invention can be easily manufactured by any of the offline methods.

In the refill pouch of the present invention, the contents are filled with a spout or a notch at the top of the pouch, and the seal pattern for heat sealing this portion also has a special shape. However, since the spout and cutout itself are not so complicated, trim the spout and cutout at the top of the pouch first, and fill the contents from the top of the pouch as with a normal pouch. Then, this portion can be heat-sealed with a predetermined seal pattern to be sealed.

In some cases, the heat seal on the upper part of the pouch is divided into two stages, for example, about half of the left and right sides are heat-sealed first, and the remaining part is made an unsealed opening. It is also possible to fill the contents from a part and then heat seal this part.

[0028]

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

FIG. 1, FIG. 2, FIG. 3, and FIG. 4 are front views for explaining the structure of one embodiment of the refill pouch of the present invention. FIG. 5 is a perspective view of a main part for explaining a state when the contents filled in the refill pouch shown in FIG. 1 or 2 are transferred to a bottle.

In FIG. 1, the refill pouch 60 is
The main body is formed in a standing pouch. That is, the bottom portion 1 is formed in a gusset form in which the film is folded inward in a conventional manner, and near the lower ends on both sides of the film folded inward, a folded film cutout portion 2 such as a semicircle is provided. 1 is heat-sealed at the bottom heat-sealing portion 3 by a boat-shaped seal pattern, and self-sustainability is imparted. The body of the pouch is formed by heat-sealing both side edges of the front and rear two wall films with the body heat seal portion 4.

A spout port 6 is provided at a part of the upper edge of the pouch (the center in the figure), and the inside of the spout 6 communicates with the inside of the pouch main body. The film is provided with a plurality of dot-like irregularities 8 such that a convex portion is formed on the inner surface side, and the outer periphery and both side edges are sealed by the upper heat seal portion 5. By providing the irregularities 8, the inner surfaces of the films in the liquid passage are prevented from adhering to each other. Therefore, when the spout 6 is opened, the spout can be easily opened.

Further, both sides of the spout 6 are cut out by cutouts 7 so that the spout 6 can be fixed to the mouth when the contents are transferred to a bottle or the like. Also, both sides of the upper heat seal portion 5 except for the spout 6 are heat-sealed in a shape having a downward slope from the rising portion of the spout 6 to both ends of the pouch, and are filled. When pouring out the contents,
Are difficult to block, and no residual liquid is generated. Further, a V-shaped notch 9 is provided at a predetermined position of an edge portion (heat seal portion) on both sides of the spout 6 as an easy opening processing portion for facilitating opening of the spout 6. It is configured.

The filling of the contents into the refill pouch 60 having such a configuration forms the bottom and the body of the pouch, and only the upper portion is trimmed first.
At the stage before heat sealing, the contents can be filled from the upper opening, and then the upper part of the pouch can be hermetically sealed and packaged by degassing and sealing with a predetermined heat sealing pattern.

Such a refill pouch 60 is self-supporting, excellent in appearance and easy to handle after filling the contents, and the notch 9 is used when transferring the contents to a bottle or the like. Then, as shown in FIG. 5, the cutouts 7 on both sides of the spout 6 are placed on the mouth (mouth wall) of the bottle, so that the tip of the spout 6 is opened. It is fixed so that it enters the part. In this case, on the inner surface of the film which is a liquid passage of the spout 6, in this case, since the projections of the dot-shaped unevenness 8 are formed, the spout is easily opened. Therefore, in this state, the contents are poured out into the bottle simply by lifting and gradually tilting the main body of the refill pouch 60,
It can be safely and easily transferred to the end.

The refill pouch 70 shown in FIG. 2 has exactly the same structure at the top of the pouch as the refill pouch 60 shown in FIG. 1, and the main body of the pouch is formed in a four-sided sealed form. Only in that they differ. Therefore, the pouch after filling the contents is not self-supporting, and is slightly inferior in terms of ease of handling and appearance, but has the advantage of easy bag making, good productivity, and low cost. Since the operability, action, effect, and the like at the time of transfer are substantially the same as those of the refill pouch 60 shown in FIG. 1, they are excellent as inexpensive refill pouches.

The refill pouch 80 shown in FIG. 3 has the same main body portion as the refill pouch 60 shown in FIG. 1, and the outer periphery of the spout 6 provided at the center of the upper part of the pouch. The only difference is that the shape and the shape of the lower portion of the upper heat seal portion 5 are slightly changed. That is, by expanding the shape of the heat seal portion at the tip of the spout portion 6 on both sides, the appearance of the cap is given to clarify the position of the spout portion 6 and the heat seal portions on both sides of the spout portion 6 are formed. The lower part of 5 has a shape with a downward slope down to the middle, and a horizontal shape from there to the ends of the pouch to maintain the smooth pourability of the contents and fill. By slightly increasing the capacity, the outer diameter of the pouch can be reduced. Therefore, the function, operation, and effect of the pouch are the same as those of the refill pouch 60 shown in FIG. 1 except for the points described above.

The refill pouch 90 shown in FIG. 4 is exactly the same as the refill pouch 80 shown in FIG. 3 except that the upper part of the pouch has the same structure. Only in that Therefore, also in this case, the pouch after filling the contents is not self-supporting, and is slightly inferior in terms of ease of handling and appearance, but has the advantage of easy bag making, good productivity, and low cost. The operability, action, effect, and the like at the time of content transfer are shown in FIG.
It is the same as 0 and is useful as a low-cost type refill pouch.

FIG. 5 is a perspective view of an essential part for explaining a state where the contents filled in the refill pouches 60 and 70 shown in FIG. 1 or 2 are transferred to a bottle. By inserting the spout 6 into the mouth 51 of the bottle 50 by opening the spout 6 of the refill pouches 60 and 70 with the notch so that the cutouts 7 on both sides are In contact therewith, the spout 6 is fixed.
At this time, since the projections of the dot-like irregularities 8 are formed on the inner surface of the film of the spout 6, the spout 6 is easily opened. Therefore, the refill pouch 60,
By simply lifting and gradually tilting the body of 70, the contents are poured out into the bottle 50 and can be safely and easily transferred to the end.

In FIG. 5, the state in which the contents are transferred to a bottle is described by taking the refill pouches 60 and 70 shown in FIG. 1 or 2 as an example.
The refill pouches of the present invention, including the refill pouches described above, can transfer contents in a safe and easy manner.

Test Example 1 A refill pouch having the structure shown in FIG. 1 was prepared. A plastic bottle having an outer diameter of 26 mm and an inner diameter of 22 mm was used as a container for transferring contents. Assuming that the pouch was used (volume was 575 ml when fully filled), the film of the pouch and the dimensions of each part were set as follows to produce a refill pouch of Test Example 1. The wall film and bottom film of the pouch shall be laminated films of the same configuration, and from the outside, PE
T film (thickness 12μm), ON film (thickness 15
μm), aluminum foil (thickness 7 μm), L·LDPE
A laminated film obtained by laminating films (thickness: 70 μm) in order by a dry lamination method in accordance with a conventional method was used.

The outer dimensions of the pouch are 150 mm in width, and the length is 255 mm from the upper end of the spout 6 to the lower end (bottom) of the pouch. The bottom 1 has a folded portion of the bottom film having a height of 40 mm, a semicircular notch 2 is provided near the lower end on both sides of the bottom film, and the bottom heat seal portion 3 is heat-sealed with a boat-shaped seal pattern. A standing pouch-type bottom portion 1 is formed, and the right and left body heat seal portions 4 are sealed with a seal width of 5 m.
m to form a body portion of the pouch.

The upper part of the pouch will be described with reference lines drawn for easy understanding. First, a horizontal line (a line parallel to the base) is drawn at a height of 230 mm from the bottom of the pouch, and is used as a first reference line. Then, a line parallel to the first reference line is drawn at a position 10 mm above the first reference line (a position at a height of 240 mm from the bottom of the pouch), and the second line is drawn.
And the reference line. The spout 6 provided at the center of the upper part of the pouch has a height of 25 m above the first reference line.
m, a width of 26 mm (both including a heat seal portion). At this time, the width and height of the part where the spout 6 protrudes above the second reference line are 26 mm,
It has a height of 15 mm and stands vertically.
Also, a portion of the spout 6 below the second reference line, that is,
At the rising portion between the first reference line and the second reference line, the rising portion starts from a position having a width of 46 mm at the center of the first reference line, and has a width of 26 mm at the center of the second reference line. The cutout 7 has a smooth curve and a shape that gradually decreases upward. The heat seal portion on the outer periphery of the spout 6 had a seal width of 5 mm at the upper end and a seal width of 3 mm at both sides. Therefore, the width (effective folding diameter) of the liquid passage of the spout 6 is 20 mm.

A V-shaped notch 9 is provided at both side edges 8 mm below the upper end of the spout 6, and further below that, the film surface in the area which becomes the liquid passage is shown in FIG. A 2.5 mm diameter circular dimple emboss is preliminarily arranged to form dot-like irregularities 8 in which the inner surface side of the film becomes a convex portion.
Was provided.

The notch 7 on both sides of the spout 6 on the upper part of the pouch and the shoulder ahead of the notch 7 have a lower end between the first reference line and the second reference line. The upper portion of the pouch was trimmed at the same time as the spout 6 so as to be in contact with the first reference line and to have the upper end of the shoulder contacting the second reference line. In addition, the seal pattern of the upper heat seal portion 5 to be heat-sealed after the filling of the contents is the lower end of the heat seal portion on both sides of the spout portion 6, that is, the first reference A seal pattern having a shape with a slope falling down by 45 mm from the position of the line to both ends of the pouch was obtained.

With the above structure, a bottom 1 and a body are formed, a pouch having an opening at the top is prepared, and 550 ml of a liquid shampoo as a content is filled into the pouch from the top opening.
The package of Test Example 1 was produced by sealing the upper heat seal portion 5 with a deaerated seal using the above-described seal pattern.
(Production of 20 samples)

The above package did not hinder its independence even after storage at 35 ° C. for 3 months, had a good appearance and no leakage of the contents was observed. Further, in order to test the suitability for use, after opening the pouch outlet 6 using the notch 9, a plastic bottle having an outer diameter of 26 mm and an inner diameter of 22 mm (capacity: 575 ml when filled) ) At the mouth
By inserting the spout 6 of the pouch so that the cutouts 7 on both sides are in contact with the mouth wall of the bottle, and lifting and gradually tilting the body of the pouch, irregularities are provided on the inner surface of the spout film. Therefore, the inner surfaces of the film did not adhere to each other, the spout 6 was easily opened by the weight of the contents, and the contents could be safely and easily transferred to the end without spilling out. When the spout 6 was opened, the opening property by the notch 9 was also good.

Test Example 2 A refill pouch having the structure shown in FIG. 2 was prepared. In the structure of the refill pouch of Test Example 1, first, the laminated film used for the pouch was changed to an ON film (thickness). 15μm) and L ・ LDP
An E film (thickness: 100 μm) was replaced with a laminated film laminated by a dry lamination method according to a conventional method, and the form of the pouch bottom 1 was changed from a standing pouch form to a form similar to a four-side seal pouch. Except that the total length was extended by 25 mm at the bottom to 280 mm and the bottom heat-sealed part 3 was heat-sealed with a seal width of 5 mm, all were processed in the same manner as the refill pouch of Test Example 1 and used for the refill of Test Example 2. A pouch was made.

In the same manner as in the pouch of Test Example 1, 550 ml of a liquid shampoo was filled from the upper opening, and the upper heat seal portion 5 was sealed with a degassing seal. Was prepared. (Preparation of 20 samples) The above-mentioned package was in the form of a flat pouch and lacked independence, and although slightly inferior in appearance, it was easy to make a bag, had good filling suitability of contents, and was excellent in productivity. . The package of Test Example 2 was also subjected to a storage test and a usability test in the same manner as in Test Example 1. After the storage test, there was no leakage of the contents, the openability by the notch, and the use of other contents liquid. The operability, safety, easiness, and the like at the time of transfer were also good, similarly to the refill pouch of Test Example 1.

[0049]

As described above in detail, according to the present invention, bag making and filling of contents can be easily performed, and at the time of use, the spout of the pouch can be easily opened.
In addition, the spout is well fixed to the mouth of the container (bottle) that transfers the contents, so that the contents can be safely and easily transferred to the end without spilling the contents. The effect is that the pouch can be provided with good productivity and at low cost.

[Brief description of the drawings]

FIG. 1 is a front view illustrating the configuration of a first embodiment of a refill pouch according to the present invention.

FIG. 2 is a front view illustrating the configuration of a second embodiment of the refill pouch of the present invention.

FIG. 3 is a front view illustrating the configuration of a third embodiment of a refill pouch according to the present invention.

FIG. 4 is a front view illustrating a configuration of a fourth embodiment of a refill pouch according to the present invention.

FIG. 5 is a perspective view of a main part illustrating a state in which contents filled in the refill pouch shown in FIG. 1 or 2 are transferred to a bottle.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bottom part 2 Folded film cutout part 3 Bottom heat seal part 4 Body heat seal part 5 Top heat seal part 6 Injection part 7 Notch part 8 Dot-shaped unevenness 9 Notch 50 Bottle 51 Bottle mouth 60, 70, 80, 90 refill pouches

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Takataka Aoki 1-1-1 Ichigaya Kagacho, Shinjuku-ku, Tokyo Dai Nippon Printing Co., Ltd.

Claims (5)

[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 at a part of an upper part of the pouch, and the spout. A refill pouch, characterized in that a notch formed in a smooth curve is provided in a heat seal portion on an upper portion of the pouch on both sides of the pouch. 2. A pouch in which a peripheral edge is sealed by heat sealing and a fluid content is hermetically sealed and provided with a spout at a part of an upper part of the pouch. A pouch for refilling, characterized in that the inner surface of the film is provided with irregularities for improving opening properties. 3. A pouch in which a peripheral edge is sealed by heat sealing and a fluid content is hermetically packaged, and a spout is provided at a part of an upper portion of the pouch, and the spout is provided. Notch formed with a smooth curve is provided in the heat seal part on the upper part of the pouch on both sides of the pouch, and the inner surface of the film of the spout is provided with irregularities for improving the opening property. A refill pouch characterized by the following: 4. The refill according to claim 1, wherein the heat seal portions on the upper and lower sides of the pouch on both the left and right sides of the spout portion are heat-sealed in a shape having a downward slope. For pouch. 5. The pouch for refilling according to claim 1, wherein an easy-opening processing section is provided at the spout section.