JP2000255599A - Refill pouch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refill pouch including a narrow pour-out port which is excellent in opening ability and shape retention of the pour-out port, and is excellent in productivity and suitability for use. SOLUTION: A pour-out port 5 is formed by heat-sealing, to an upper corner of a pouch of a standing pouch form for example, a pour-out port seal portion 6 comprising a tip portion 7, side portions on both lateral sides 8, 8' and shoulder portions 9, 9' wherein at least an internal line at a connection of the side portion and the shoulder portion is formed of curves B, B'. Notches 10, 10' are provided at both sides of the pour-out port 5. In addition, a cut line 12 for opening the pour-out port 5 is inserted so that a vertex of a triangle with a right-angled vertical angle is placed inside the port 5. When hypotenuses on both sides are slid toward both sides while being inscribed with the internal line of the pour-out port seal 6, they are brought into contact with a track of the vertex or placed at a lower position than that, for providing the refill pouch 300.

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 contents having fluidity such as a liquid are hermetically packaged, and the contents are transferred to another container at the time of use. In order to be easily transferred to another container such as a bottle, the spout is provided with a narrow width spout at the corner at the top of the pouch, and the heat seal of the spout is stable and the danger of bag breakage is small, Also, the present invention relates to a refill pouch in which the shape of the spout is improved so that the spout does not block during the pouring.

[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 when opened, without spilling the contents.
The opening is formed by cutting out a part of the pouch, such as a corner, instead of the entire upper part, or a method of providing a narrow width spout in a part of the upper part of the pouch. A method of attaching the outlet to a part of the upper part of the pouch by heat bonding was adopted.

[0003]

However, although the method of forming the opening of the pouch by cutting a part such as a corner portion, not the whole upper part of the pouch, is simple,
The pour direction of the contents is difficult to stabilize, especially when the container to be transferred is a small-diameter container such as a bottle. There was a problem in terms of ease of transfer and safety in some cases.

In addition, a 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, costs the spout itself, and requires an empty pouch to which the spout is attached. This increases the thickness, which increases the cost of storage and transportation.When filling the contents, for example, the number of empty pouches loaded into the There is a problem that the cost is increased as a whole and the steps and operations are complicated, such as the necessity of supplying a pouch.

[0005] The operability and safety when transferring the contents to another container can be improved to some extent by the method of providing a narrow spout at a part of the upper part of the pouch.
When pouring out the contents, the mouth of the spout is difficult to open, and if the viscosity of the contents is a little high, there is a problem that pouring takes a long time. When the lower part is pressed, the upper part of the pouch expands due to the internal pressure.As a result, folds occur at the bases on both sides of the spout toward the tip of the spout, and the tip of the spout is blocked, making it difficult to pour. There was a problem of becoming.

The present invention has been made in order to solve such a problem, and an object of the present invention is to eliminate the necessity of a separate spout for a molded product or the like, and to provide a similar pouch as a normal pouch. It can be manufactured with high productivity in the process, the stability of the heat seal at the spout and the like and the suitability for the filling machine are good, and at the time of use, the tip of the spout provided at the upper corner of the pouch is held at a predetermined position. By cutting, the spout opening is easily opened, the shape retention is good, and even if the content is relatively high in viscosity, the spout may be blocked during the pouring. Another object of the present invention is to provide an inexpensive pouch for refilling, which can be safely and easily transferred to the end of a small-diameter bottle and the like, and has excellent productivity and good 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 in which a peripheral edge portion is heat-sealed in a bag shape, and a content having fluidity is hermetically packaged. The outer edge of the side portion and the shoulder and the outer edge of the shoulder are heat-sealed, and a notch is provided on both sides thereof, and a protruding spout is provided, and the outer edge of the spout is sealed. In the inner line of the heat seal portion, at least the connection portion between the side portions and the shoulder portion on both sides, that is, the base portion of the spout portion is formed with a curve, and the spout portion is opened. A cut line was inserted with a triangle having a right angle of apex so that its apex entered the inside of the spout portion, and slid to both sides while making the oblique sides on both sides inscribed in the inside line of the spout seal portion. The position where the vertex touches the locus drawn, or Consisting refill pouch, characterized in that provided in the side position.

By adopting such a configuration, even when the spout provided at the corner of the upper part of the pouch is formed to be long, at least both side portions of the inner line of the heat seal portion for sealing the outer edge thereof. Since the connection between the and the shoulder, i.e., the base of the spout is formed with a curve, for example, when connected in a broken line, an acute portion is generated in the seal portion, but there is no sharp-pointed portion. After filling the contents, even if an internal pressure is applied to this portion, the film can be hardly cut or the seal peels off, so that the seal can be stabilized and the risk of bag breakage can be reduced.

Further, a cutout line for opening the spout portion is formed by inserting a triangle having a right-angled apex so that its apex enters the inside of the spout portion, and inserting the oblique sides on both sides into the heat-sealing portion of the spout portion. When slid to both sides while inscribed in the inner line, since the apex is provided at a position in contact with the locus drawn, or at a position below it, the spout is opened with the cutout line, When pouring the contents, due to the internal pressure of the contents, the intersection of the creases of the pouch formed from the base on both sides of the spout toward the tip of the spout, at least a position in contact with the cut line, or Since the spout is formed at a position on the distal end side, the spout is automatically opened, the shape retention is good, and the spout is not blocked during the pouring. And the notch provided on the side of the spout can be applied to the mouth of a container such as a bottle, so that it can be poured out safely, easily and without spilling the contents. Can be relocated.

According to a second aspect of the present invention, there is provided the refillable pouch according to the first aspect, wherein an easy-opening means is provided at the spout.

[0011] The easy-opening means may be a notch commonly used in ordinary pouches, a half-cut line by irradiating a laser beam or the like, or a method of laminating a uniaxially stretched film in a laminated film of a pouch (in this case, a uniaxially stretched film). The stretched film is used so that the stretching direction coincides with the opening direction of the spout portion). These may be used alone, or, for example, a notch and a half-cut line, or a notch and a uniaxially stretched film. Can be used in an appropriate combination such as lamination.

When the half-cut line is provided, the half-cut line is not limited to a linear half-cut line, but may be provided by an intermittent half-cut line such as a perforated line. In addition, such a half-cut line may be one line, but assuming that the tearing direction is shifted, one half-cut line is provided on each side of the center half-cut line.
A plurality of half-cut lines such as two or two half-cut lines may be provided in parallel. In addition, as the notch, a one-shaped or V-shaped notch is usually used, but the shape is not particularly limited, and any shape having a pointed portion in a cutting direction can be used.

[0013] By providing such easy-opening means at the position of the cutout line of the spout, in addition to the effect of the invention described in claim 1, when the spout is opened,
A tool such as scissors is not required, and the tip of the spout can be easily cut off at a predetermined position and opened by hand alone.

According to a third aspect of the present invention, there is provided the refillable pouch according to the first or second aspect, wherein the pouch is a standing pouch type pouch.

By adopting such a configuration, in addition to the operation and effect of the invention described in claim 1 or 2, the pouch is provided with autonomy, and in particular, handling of the pouch after the contents are filled is improved. In addition to being easy, the appearance is also excellent, and the operation at the time of transferring contents can be easily performed.

According to a fourth aspect of the present invention, there is provided the refillable pouch according to any one of the first to third aspects, wherein a bulge portion is provided at least at a spout of the pouch. Such a bulge can be easily formed and provided by a hot embossing method or the like.

By adopting such a configuration, in addition to the functions and effects of the invention according to any one of claims 1 to 3, when the contents filled in the pouch are transferred to another container, the spout port is provided. By simply cutting and opening the tip of the part at the position of the perforation line, the bulge provided in the spout automatically opens the spout with good shape retention.

Such a bulging portion may be provided only on the film on one side of the pouch, but by providing it on the film on both sides, the function and effect can be further enhanced.
Also, the position where the bulging portion is provided is not limited to the spout portion, and may be provided as necessary, for example, from the center of the pouch body to the spout portion, or provided in an arbitrary pattern on the entire pouch body. Therefore, it is possible to facilitate the flow of the contents to the spout portion or to improve the form stability of the entire pouch.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention, such as a film used for manufacturing a refill pouch of the present invention and a method for manufacturing a pouch, will be described below. The film used for producing the refill pouch of the present invention is mainly a laminated film mainly composed of plastics, but is not particularly limited, for example, a known laminated film used for various liquid pouches, Either 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. As a representative example of the configuration of the laminated film that can be preferably used, the following configuration can be given.

(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 or alumina deposited layer) / adhesion Agent / Uniaxially stretched HDPE film / Adhesive / L ・ LDP
E 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 / 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, 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 biaxially stretched. A polyethylene terephthalate film and an EVOH film indicate a saponified ethylene-vinyl acetate copolymer film, and a CPP film indicates a non-stretched polypropylene film. The anchor coat is a kind of primer coat which is previously coated on the substrate 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,
When the film and the uniaxially stretched PP film are used so that the stretching direction thereof coincides with the tearing direction at the time of opening the spout of the pouch, the directionality of the tearing can be further stabilized. An aluminum foil, a silica or alumina vapor-deposited layer, an EVOH film, and the like are laminated to provide gas barrier properties. In addition, as the sealant layer, L-LDPE film and C
Although two types of PP films have been given, the L / LDPE film is excellent in heat seal stability and content resistance, such as stress cracking resistance to surfactants, and the CPP film has heat resistance and low odor. Excellent in nature,
It is suitable for packaging contents that require 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, 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. It is excellent in hot sealability, and 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 the occurrence of pinholes due to seal missing 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 steps can be more effectively prevented.

Next, a method for producing a refill pouch of the present invention produced using the above-described laminated film will be described. The shape of the main body portion of the refill pouch of the present invention is not particularly limited, and for example, a three-side seal type, a four-side seal type pouch, a standing pouch, or the like can be suitably used, and the adopted pouch type is used. Accordingly, using the corresponding bag making machine, the opening portion and the notch portion on the side thereof, notch, easy-opening means such as a half-cut line, and the bulging portion provided on the pouch wall film. Processing equipment for processing such additional components, such as trimming equipment, punching equipment, heat sealing equipment, laser light irradiation equipment, as well as incorporating, for example, embossing equipment in-line, or by preparing it separately as offline The pouch can be easily manufactured.

The bulging height of the bulging portion provided on the wall surface film is not particularly limited, but is preferably about 1 to 7 mm at the highest point, more preferably about 2 to 5 mm at the spout. . The height of the highest part is 1
In the case of less than 1 mm, the effect on the natural opening property is slightly reduced, and the height of more than 7 mm is not necessary, and the processing itself becomes difficult. It is not preferable because handleability and stacking suitability in a filling and sealing machine are reduced.

When a swelling portion is provided also in the pouch body other than the spout, the swelling height of about 0.5 to 2 mm is sufficient. Such a bulge can be provided on the wall surface film of the pouch by a hot embossing method, a vacuum forming method, a compressed air / vacuum forming method, and the like. In particular, the hot embossing method has a high productivity and a good reproducibility of fine patterns. And a bulge having a stable shape can be provided with high productivity.

[0028]

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.

FIG. 1 shows a first embodiment of the refill pouch of the present invention.
FIG. 3 is a front view illustrating the configuration of the example. In FIG. 1, a refillable pouch 100 has its main body formed into a four-sided sealed pouch. That is, the bottom portion 2 and the body portion are formed by heat sealing the lower edge and the both side edge portions of the front and rear wall film 1 with the bottom seal portion 3 and the body seal portion 4, respectively. . And pouch 10
In the upper corner of 0, the tip 7, the sides 8 on both sides,
A spout portion 5 is formed by heat sealing with a spout portion seal portion 6 composed of 8 ′ and shoulder portions 9 and 9 ′. The spout portion 5 has a shape projecting obliquely upward and is provided on both sides of the spout portion 5. Notches 10, 10 'are provided. Also, when forming the upper cutout 10 ', V is used as an easy-opening means.
It is trimmed so that a letter-shaped notch 11 is formed.

The shape of the inner line of the spout seal portion 6 forming the spout portion 5 is defined by the tip 7 of the spout portion 5.
To the middle of the side portions 8 and 8 ′ on both sides, the symmetrical shape spreads at a certain angle to the left and right with respect to the center line A of the spout portion 5, but from there, for example, Side 8
And the side portions 8 'have different lengths, and the shoulder portions 9 and 9' on both sides.
Is formed by an arc curve, and the shoulder 9,
The length 9 'is also different, and as a whole, the shape is asymmetric with respect to the center line A. In this embodiment, the side portions 8 and 8 'on both sides of the spout 5 are formed as straight lines. However, the side portions 8 and 8' are not limited to straight lines, and may be formed as curved lines such as upward arcs having different diameters. it can.

Then, as shown in the figure, the position of the cutout line 12 for opening the spout 5 is inserted into a triangle having a right-angled apex so that its apex enters the inside of the spout 5. When the oblique sides on both sides are slid to both sides while being inscribed in the inner line of the spout seal portion 6, they are provided at positions where they contact the locus C drawn by the vertices. The cut line 12 may be displayed only by printing, or may be provided with a half cut line by irradiating a laser beam or the like to make it easier to tear. The upper seal portion 13 adjacent to the spout 5 at the top of the pouch is an unsealed opening before filling with the contents, and the contents are filled from this portion. It is to be sealed and sealed.

By adopting such a configuration, the refillable pouch 100 filled with a liquid content or the like and the upper seal portion 13 is degassed and sealed, since the main body of the pouch is a four-sided seal type. Although there is no self-sustainability, there is an advantage that bag making is easy and excellent in productivity and that it can be manufactured at low cost. In the inner line of the spout seal portion 6, the connecting portions between the side portions 8, 8 'on both sides, which are particularly likely to form an acute angle portion, and the shoulder portions 9, 9' are formed by curves B, B '. As a result, there is no sharp-pointed portion, and even if internal pressure is applied to this portion after filling the contents, the film is less likely to be cut or the seal is peeled off. Therefore, even if the seal width of the side portions 8 and 8 'is slightly smaller than, for example, the width of the body seal portion 4, the seal is stabilized, and the risk of bag breakage can be reduced.

When the filled contents are transferred to a bottle or the like, the tip of the spout 5 is torn along the cutout line 12 with the notch 11 as a starting point.
The spout 5 can be easily opened. At this time, since the perforated line 12 is provided at the aforementioned position, the spout 5 is naturally opened with good shape retention due to the internal pressure of the contents. The opened pouch 100 is provided with cutouts 10 and 10 'on both sides of the spout 5 so that the pouch 100 can be poured out by applying the cutout to the mouth of the bottle. The contents can be safely and easily transferred to the end without the clogging of the spout 5 during the pouring.

FIG. 2 shows a second embodiment of the refill pouch of the present invention.
FIG. 3 is a front view illustrating the configuration of the example. The refill pouch 200 shown in FIG. 2 is different from the refill pouch 100 shown in FIG. 1 in that the bulge portion D having the illustrated shape extends from the spout 5 of the wall film 1 toward the center of the pouch 200. Is additionally provided.

By adopting such a structure, in addition to the operation and effect described for the refill pouch 100 shown in FIG. 1, the bulging portion D further enhances the opening property of the spout 5 and the shape retaining property thereof. At the same time, since the pouch 200 naturally expands outward from the spout 5 toward the center of the pouch 200, even if the content is high in viscosity,
The flow to the spout 5 is performed smoothly, and the contents can be more easily transferred. Such a bulging portion D may be provided on only one wall film of the pouch 200, or may be provided on both wall films, whereby the effect can be further improved.

FIG. 3 shows a third embodiment of the refill pouch of the present invention.
FIG. 3 is a front view illustrating the configuration of the example. The refill pouch 300 shown in FIG. 3 is different from the configuration of the refill pouch 100 shown in FIG. 1 in that the configuration of the upper part of the pouch such as the spout portion is not changed, and only the shape of the pouch body is a four-side seal type pouch. From a pouch of the standing pouch type.

By adopting such a configuration, the refill pouch 300 has characteristics as a standing pouch, in addition to the functions and effects described for the refill pouch 100 shown in FIG. The pouch 300 filled with the above-mentioned contents and sealed by degassing and sealing the upper seal portion 13 is self-supporting, easy to handle, and excellent in appearance.

FIG. 4 shows a fourth embodiment of the refill pouch of the present invention.
FIG. 3 is a front view illustrating the configuration of the example. The refill pouch 400 shown in FIG. 4 is the same as the refill pouch 300 shown in FIG.
In this configuration, a bulged portion D having the shape shown in FIG. 4 is additionally provided. The bulging portion D has a bulging portion D provided from the spout 5 to the center of the pouch, and a pair of rod-shaped members vertically provided from the middle to the lower part of the pouch at positions slightly closer to the sides on both sides. And a bulging portion D. The height of the bulge D is suitably about 2 to 5 mm in a wide portion of the spout, and about 0.5 to 2 mm in a narrow portion below the spout.

With such a configuration, the refill pouch 400 has the following functions and effects due to the addition of the bulging portion D, in addition to the functions and effects described for the refill pouch 300 shown in FIG. It will be. That is,
The bulging portion D provided in the spout 5 automatically opens the spout 5 when the spout 5 is opened, and has excellent shape retention. 5 is more reliably prevented from being closed, and the thin bulge D extending from the bottom of the spout 5 to the center of the pouch is bent outward by the internal pressure of the contents, thereby expanding the pouch 400 outward. This has the effect of facilitating the flow of objects to the spout 5.

Further, a pair of thin vertical bulges D provided on the both sides of the pouch 400 from the middle to the lower part thereof are bent off by the internal pressure of the contents in the pouch after the contents are filled. , With rib effect, pouch 40
When the 0 is self-standing, it has the effect of stabilizing the middle to lower portions into a prismatic form.

FIG. 5 shows a fifth embodiment of the refill pouch of the present invention.
FIG. 3 is a front view illustrating the configuration of the example. The refill pouch 500 shown in FIG. 5 is configured by changing only the shape of the spout 5 as shown in FIG. 5 in the configuration of the refill pouch 300 shown in FIG.

That is, the spout 5 is provided at the upper corner of the pouch 500 with the tip 7 and the sides 8, 8 'on both sides.
The outlet seal portion 6 including the shoulder portions 9 and 9 ′ is heat-sealed, and cutouts 10 and 10 ′ are provided on both sides thereof to form a shape projecting obliquely upward. 6, the side portions 8 and 8 'on both sides of the inner line are not straight, but are formed as shown in the figure by changing upward arcs having different diameters, and connecting portions connected to the shoulders on both sides are also formed by arc curves B, respectively. B ', and the position of the perforation line 12 when opening the spout 5 is inserted into a triangle with a vertical angle so that the apex enters the inside of the spout 5, and the oblique sides on both sides are inserted. Is slid to both sides while being inscribed in the inner line of the spout seal portion 6, and is provided at a position in contact with the locus C drawn by the apex. In this case as well, the end of the perforated line 12 has a V
A letter-shaped notch 11 is provided.

When such a configuration is adopted, the pouch 5
Reference numeral 00 denotes a standing pouch type, in which a pouch 500 filled with a liquid or the like and sealed by degassing and sealing the upper seal portion 13 is self-supporting, easy to handle, and excellent in appearance. Also, since the connecting portions between the side portions 8 and 8 'on both sides of the inner line of the spout sealing portion 6 and the shoulder portions 9 and 9' are formed by curves B and B ', a sharp-pointed portion is formed. In addition, even if an internal pressure is applied to this portion, the film is hardly broken or the seal is peeled off, the seal is stabilized, and the risk of bag breakage can be reduced.

When the filled contents are transferred to a bottle or the like, the leading end of the spout 5 is torn along the cutout line 12 with the notch 11 as a starting point.
The spout 5 can be easily opened. At this time, since the perforated line 12 is provided at the aforementioned position, the spout 5 is naturally opened with good shape retention due to the internal pressure of the contents. The opened pouch 500 has cutouts 10 and 10 ′ on both sides of the spout 5, and can be poured out while applying this portion to the mouth of the bottle. The contents can be safely and easily transferred to the end without the clogging of the spout 5 during the pouring.

The side portions 8, 8 'on both sides of the spout portion 5 are provided.
The shape of the inner line formed by upward arcs having different diameters is originally a shape suitable as a liquid outlet, and when the angle of the cutout line 12 is made closer to the vertical, the upper side 8 ′ is formed. Can be made longer, which makes it easier to control the direction of pouring downward, and when approaching horizontal, the lower side 8 can be made longer, so that the gutter-shaped guide portion is made longer. Can be. Therefore, if the cut line 12 is located at a position in contact with the locus C or a position below the locus C, the angle thereof can be freely set so as to be suitable according to properties such as fluidity of the contents. it can. Also, the pouch 500 having such a configuration can be provided with a bulge similar to the bulge D provided in the refill pouch 400 shown in FIG. 4, thereby obtaining the same operation and effect as described above. Can be.

[0046]

As described above, according to the present invention, there is no need for a separate spout made of a molded product or the like.
It can be manufactured with the same process as ordinary pouches with good productivity, has good heat seal stability at the spout and other parts, has good suitability for filling machine, and when used, has a spout at the corner of the top of the pouch. By cutting off the tip at a predetermined position, the spout opening is easily opened, and its shape retention is good,
In addition, the spout does not become blocked during the pouring, and even small bottles can be safely and easily transferred to the end. This has the effect of providing pouches with high productivity.

[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 front view illustrating the configuration of a refillable pouch according to a fifth embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Wall film 2 Bottom part 3 Bottom seal part 4 Body part seal part 5 Outlet part 6 Outlet part seal part 7 Tip part 8, 8 'Side part 9, 9' Shoulder part 10, 10 'Notch part 11 Notch 12 Cut-out Line 13 Upper seal part A Center line of the spout part B B 'curve C Locus of a vertex obtained by inscribed both oblique sides of a triangle whose apex angle is a right angle with the inside line of the spout part seal part D bulge part 100, 200, 300, 400, 500 Refill pouches

Claims (4)

[Claims] 1. A peripheral edge portion is heat-sealed in a bag shape,
A pouch in which contents having fluidity are hermetically sealed and packaged, and a top end portion of the pouch is heat-sealed at a top portion and both side portions and an outer edge portion of a shoulder portion, and cutout portions are formed on both sides thereof. Providing a projecting-shaped spout portion provided, and, of the inner line of the heat seal portion that seals the outer edge of the spout portion, a connection portion between at least both side portions and a shoulder portion, that is, , So that the base of the spout is formed in a curved line, and the cutout line for opening the spout is a triangle having a right-angled apex so that its apex enters the inside of the spout. It is provided at a position where it touches the locus drawn by the vertex when it is slid to both sides while inserting and inserting the oblique sides on both sides to the inner line of the spout seal section, or at a position lower than that. A refill pouch characterized by the following: 2. The refillable pouch according to claim 1, wherein said spout is provided with easy-opening means. 3. The refillable pouch according to claim 1, wherein the pouch is a standing pouch type pouch. 4. The refillable pouch according to claim 1, wherein a bulge is provided at least at a spout of the pouch.