JP2005187080A - Repacking pouch - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a repacking pouch which is easy to manufacture a bag and to fill contents, and in which an opening portion good in the shape retainability can be formed automatically only by opening a spout portion when used, and which is excellent in a usage aptitude to be able to move even high-viscosity contents safely and easily. <P>SOLUTION: While the repacking pouch 100 is made in the form of a standing pouch, the spout portion 6 of narrow width is provided in an upper corner portion, and notch portions 7a, 7b for fixing to the mouth portion of a container are provided in its side portion, the blister section S of a shape which goes diagonally downward in the upper portion from the spout portion 6 until it exceeds a center line in the width direction in the pouch and bends curvilinearly downward in the intermediate portion of its end and becomes perpendicular in a lower portion is composed by being so provided that its width and height may become large in the spout portion and the width and height may become small gradually in a diagonally downward direction and the width and height may become constant in the below side from the intermediate portion in a film 5 on at least one side wall face of the pouch 100. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a refillable pouch that seals and wraps fluid contents such as liquids, viscous bodies, and powders, and transfers the contents to other containers during use. The present invention relates to a refillable pouch in which a narrow outlet is provided in a part of the pouch so that the container can be safely and easily transferred to another container such as a bottle, and its opening and shape retention properties are improved.

  Conventionally, as a refillable pouch for hermetically wrapping liquid contents such as liquid, a standing pouch that is self-supporting and has some features as a three-dimensional container has been mainly adopted, and the contents when opened Note that the opening is formed by cutting a part of the corner, such as the corner, instead of the entire top of the pouch so that it can be safely transferred to another container without spilling outside. A method of providing an outlet portion, and a method of attaching a separate spout made of a plastic molding or the like to a part of the upper part of the pouch by heat bonding have been adopted.

  However, the method of attaching a separate spout made of plastic molding to a part of the upper part of the pouch increases the number of manufacturing steps and the spout itself is expensive, and the empty pouch with the spout attached has a thickness of This increases the cost of storage and transportation.Furthermore, when filling the contents, for example, the number of empty pouches stacked in the feeder section of the filling machine is greatly reduced, and the operator needs to supply empty pouches frequently. As a whole, there are problems such as an increase in cost and complexity of processes and operations.

  The method of providing a spout portion with a narrow width at the top of the pouch can also improve the operability and safety when transferring the contents to another container, but it can be improved to some extent. , The mouth of the spout is difficult to open, the flow is not stable during the pouring, especially when the remaining amount is low, the pouch spout is easy to close, and when the pouch is squeezed and pushed out, the contents will gain momentum It often jumped out and spilled outside, and there were still problems in terms of ease of transfer and safety.

  The present invention has been made in order to solve such problems, and the object of the present invention is to produce in the same process as a normal pouch without requiring a separate spout by a molded article or the like. The product can be easily manufactured, and the contents can be easily filled.In use, the mouth of the spout can be opened and maintained by simply cutting off the tip of the spout provided on a part of the pouch. An object of the present invention is to provide a refillable pouch with good productivity that is inexpensive and excellent in suitability for use, such as a bottle having a good shape and capable of being transferred safely and easily to the end.

The above problems can be solved by the following present invention.
That is, the invention described in claim 1 is a refillable pouch that includes a narrow-width spout portion formed by heat seal portions on both sides and in which a fluid content is hermetically packaged. It comprises a refillable pouch characterized in that at least one wall film in the vicinity of the portion has a bulging portion which is a combination of flat surfaces and the cross-sectional shape in the width direction is formed by a combination of straight lines.
In the present invention, the flat surface means a surface having no curved portion in the height direction.

In the above configuration, the shape of the pouch body is not particularly limited, and may be a flat pouch such as a three-side seal type or a four-side seal type, or a standing pouch type pouch.
By adopting such a configuration, the refilling pouch has a narrow spout portion formed by heat seal portions on both sides in a part thereof, and at least one wall surface film near the spout portion. Is provided with a bulging part formed by a combination of flat surfaces, so when transferring the contents filled in the pouch to another container such as a bottle, just cut off the tip of the spout part and open it Thus, a spout having a good shape retention is automatically opened by the bulging portion.
At this time, the bulging portion is formed by a combination of flat surfaces, and a linear bent portion is formed at the boundary between the surfaces, and each bent portion exerts a rib effect. It has resistance and resilience to the force of, and has excellent shape retention.
Therefore, the pouring outlet is not blocked during pouring, and the contents can be safely and easily transferred to the end.

  The invention described in claim 2 is a standing pouch type in which an upper corner portion is provided with a narrow width spout portion formed by heat seal portions on both sides, and a fluid content is hermetically sealed inside. In the refill pouch, a notch is provided on at least one side of the spout, and at least one wall film of the pouch extends from the spout to the center line in the width direction of the pouch. In the upper part, it goes diagonally downward, then curves downward in the middle part ahead, and in the lower part, the bulging part has a shape that goes down vertically. The refill pouch is characterized in that the width and height are gradually reduced, and the width and height are constant from the curved middle portion to the bottom.

By adopting such a configuration, since the pouch is a standing pouch type, the pouch is self-supporting, easy to handle, and excellent in appearance.
In addition, the corner portion at the top of the pouch is provided with a narrow outlet, and at least one side thereof is provided with a notch, so that the contents filled in the pouch can be used as another container such as a bottle. When transferring, the tip of the spout part is cut off and opened, and the spout part is inserted into, for example, the mouth of the bottle, or the notch on the side of the spout part is applied to the mouth of the bottle. Since an object can be poured out, the pouring port is stably fixed to the mouth of the bottle during pouring, and the contents can be transferred safely.

  In addition, on the wall film of at least one of the pouches, the upper part from the spout part to the center line of the pouch goes diagonally downward, and then bends downward in a curved shape at the middle part from there, and vertically at the lower part. The bulging part has a shape with a width and height that are large at the spout part, gradually decreasing in width and height toward the lower part, and having a constant width and height from the middle part to the bottom. A bulge is provided.

Therefore, by simply cutting off and opening the tip of the spout, the spout automatically opens the spout with good shape retention, and after opening, the swollen part of the middle part is driven by the contents. Since the inside of the pouch is expanded outwards from the vicinity of the center of the pouch to the spout, the contents of the pouch can flow smoothly to the spout, even during the pouring process. Therefore, the contents can be transferred safely and easily to the end without closing the spout.
Moreover, since the lower part of the bulging part is vertically provided with a shape in which the width and height are relatively small and constant, the shape stability and self-supporting property of the pouch is improved by the rib effect.

In this way, the bulging portion provided on the wall film of the pouch mainly improves the natural opening property and the shape retaining property of the spout portion in the upper portion thereof, that is, in the vicinity of the spout portion, and from there to the intermediate portion. Has a function of a guiding part for smoothly flowing the contents to the spout part, and the lower part has a function effect of improving the form stability and self-supporting property of the pouch.
In addition, although such a bulging part may be provided only in one wall surface film of a pouch, the effect can be further improved by providing in a symmetrical shape etc. in the wall film of both surfaces, for example.

  According to a third aspect of the present invention, there is provided a refillable pouch of a standing pouch type having a pouring port portion obliquely upward at an upper corner portion and in which a fluid content is hermetically sealed. A cutout portion is provided on at least one side portion of the outlet portion, and the spout portion is formed on the wall surface film of the pouch from the spout portion to a position near the pouch bottom corner on the opposite side of the spout portion. Is wide and tapering gradually downwards obliquely downward, and has a curved bulging portion that forms a crease in the lower part so as to overlap the same position of the wall film on both sides of the pouch. It consists of a refillable pouch.

  In this configuration, in the configuration of the refilling pouch according to the second aspect of the invention, the direction of the spout portion is directed obliquely upward, and the shape of the bulge portion provided on the wall film of the pouch is the spout. From the part to the position near the corner of the pouch bottom on the opposite side of the spout part, the spout part is wide, and gradually tapers downward, and at the bottom, it forms a curved bulge that forms a ruled line. Further, the bulging portion is changed or limited to a configuration in which the bulging portion is provided so as to overlap with the same position of the wall film on both sides of the pouch.

  By adopting such a configuration, since the pouch is a standing pouch type, it is self-supporting, easy to handle, and excellent in appearance, and in the corner portion at the top of the pouch, there is a spout portion that faces obliquely upward. Since the cutout portion is provided on at least one side portion thereof, the spout portion is formed in a shape projecting obliquely upward. Therefore, when the contents filled in the pouch are transferred to another container such as a bottle, the tip of the spout is cut off and opened, and the spout is inserted into the mouth of the bottle, for example. Since the contents can be poured out while the notch on the side of the bottle is placed on the mouth of the bottle, the spout is stably fixed to the mouth of the bottle during pouring, and the pouch The flow of the contents from the center part to the outlet part becomes a straight line and is more smoothly poured out, and the contents can be transferred safely and easily.

Also, on the wall film of the pouch, from the spout portion to a position near the pouch bottom corner on the opposite side of the spout portion, the spout portion has a wide width and gradually tapers obliquely downward, In the lower part, a curved bulge portion that is a crease-like shape is provided so as to overlap the same position of the wall film on both sides of the pouch.
Therefore, by simply cutting off and opening the tip of the spout portion, the spout portion that is automatically opened larger by the bulge portions on both sides is formed with good shape retention.

And after opening, the bulging part of the middle part is folded outward by the force of the contents, and it is in a state where the inside of the pouch is spread outward from the vicinity of the center part of the pouch to the spout part. Even a high content can be smoothly flowed to the spout portion, and the spout is not closed during the pouring, and the content can be safely and easily transferred to the end.
Moreover, since the lower part of the bulging part has a substantially vertical ruled line shape, the rib effect can improve the form stability and the self-supporting property of the pouch.

  The invention described in claim 4 is characterized in that the bulging portion is a combination of flat surfaces and the cross-sectional shape in the width direction is a combination of straight lines. The refillable pouch described in 1.

  By adopting such a configuration, in addition to the function and effect of the invention described in claim 2 or 3, a linear bent portion is formed at the boundary between the surfaces forming the bulge portion. Since the part has a rib effect, the resistance to compression and restoring force increase, and even when a force in the direction of compressing the bulging part is applied, the bulging part is not easily crushed. It is easy to restore, and the effect of the bulging portion can be obtained more reliably.

  The invention described in claim 5 is characterized in that the bulging portion is provided in a shape having steps with different heights at least in the spout portion. It consists of a pouch.

  By adopting such a configuration, in addition to the operational effects of the invention according to any one of claims 1 to 4, the step portion having a different height exerts a rib effect, so that the bulge portion of this portion is compressed. Resistance and resilience to increase, and the shape retention is further improved along with the natural opening of the spout. Further, even when the bulging portion of this portion is once crushed when the spout portion is opened, it is restored when the force is removed, and the natural opening property of the spout portion is maintained.

The invention described in claim 6 is the refillable pouch according to any one of claims 1 to 5, wherein the bulge portion is provided by a hot embossing method.
The bulging portion can be provided by a hot embossing method, a vacuum forming method, a compressed air / vacuum forming method, etc. In particular, the hot embossing method is excellent in fine pattern reproducibility and productivity.
Therefore, by adopting the configuration as described above, in addition to the operation and effect of the invention described in any one of the first to fifth aspects, a bulge portion having a desired shape can be easily obtained with higher reproducibility. Therefore, the said effect | action and effect by a bulging part can also be acquired reliably.

The invention described in claim 7 is the refillable pouch according to any one of claims 1 to 6, wherein an easy-opening means is provided in the spout portion.
The easy-opening means is a method of laminating a uniaxially stretched film in a laminated film of a pouch, or a half cut line by laser light irradiation, in addition to a notch often used in ordinary pouches (in this case, a uniaxially stretched film is Used in such a way that the stretching direction coincides with the opening direction of the spout part), and these may be used alone, for example, as a laminate of a notch and a uniaxially stretched film or a half-cut line It can also be used in combination as appropriate.

When providing a half cut line, not only a straight half cut line but also an intermittent half cut line such as a perforation can be provided.
In addition, the number of such half-cut lines may be one, but assuming that the tearing direction is deviated, a plurality of half-cut lines such as one on each side of the center half-cut line or two on each side. Can also be provided in parallel.

In particular, the refillable pouch according to the present invention is provided with a bulging part at the opening position of the spout part, so that the direction of tearing tends to become unstable, and the easy-opening means is used in combination as described above. Is more preferable.
In addition, although the notch of a 1 shape or a V shape is normally utilized for the said notch, a shape is not specifically limited, What is a shape which has an acute angle part in a cutting direction can be used.

  By adopting such a configuration, in addition to the functions and effects of the invention described in the first to sixth aspects, when opening the spout portion, a tool such as a bag is not required, and a desired one can be obtained by hand. The tip of the spout portion can be easily cut out at the position to open the spout.

The invention described in claim 8 is the refillable pouch according to claim 7, wherein a pick part is provided in the spout part together with easy-opening means.
The said knob | pick part is normally provided in the form which extends a heat seal part in the side part of a spout part above the easy-opening means of a spout part.

  By adopting such a configuration, when opening the spout portion, the pick portion can be picked with a finger, and the tip end portion of the spout portion can be cut and opened by easy-opening means. It becomes easy to do.

  As described above in detail, according to the present invention, it is possible to manufacture with good productivity in a process substantially the same as that of a normal pouch without the need for a separate spout by a molded article or the like, and the filling of the contents is easy. Moreover, when the pouch is a standing pouch type, the pouch is self-supporting and stable in form (filled) after filling and sealing the contents, and in use, it is provided at some corners such as the upper corner of the pouch. The tip of the spout can be easily cut off and opened, thereby automatically opening a spout with excellent shape retention, and even a highly viscous content can flow into and out of the spout. Produces refillable pouches that are easy to pour out and that can be safely and easily transferred to the end without spilling out the contents of bottles with small diameters. Good luck Achieves the effect can be.

Embodiments such as a film used for producing the refillable pouch of the present invention and a method for producing the pouch will be described below.
The film used for the production of the refill pouch of the present invention is mainly a laminated film mainly composed of plastics, but is not particularly limited. For example, known laminated films used for various liquid pouches are: Either can be used.
From these, it is possible to freely select and use one suitable for the use conditions such as the type of contents to be packaged and the presence or absence of heat treatment after filling.
The following structures are mentioned as a typical example of the structure of the laminated | multilayer film which can be used preferably.

(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 / co-extrusion coat layer (HDPE layer / LDPE layer) / adhesive / L / LDPE 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)
However, the present invention is not limited to these, and various combinations of laminated films can be used.

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

In the configuration of the laminated film, the ON film and the PET film give the pouch mechanical strength and printability as a base film, and the uniaxially stretched HDPE film and the uniaxially stretched PP film have a pouch outlet. By using it so as to coincide with the tearing direction when the part is opened, the directionality of the tearing can be further stabilized.
And aluminum foil, a silica vapor deposition layer, an EVOH film, etc. are laminated | stacked in order to provide gas barrier property.
In addition, as an example of the sealant layer, two types of L / LDPE film and CPP film were given. However, the L / LDPE film has heat seal stability and content resistance, such as stress cracking resistance against a surfactant. The CPP film is excellent in heat resistance and low odor, and is suitable for packaging contents that require these performances.

  In addition to the above, the sealant layer has an ethylene / α-olefin copolymer, an ethylene / vinyl acetate copolymer, an ethylene / acrylic acid copolymer, an ethylene / acrylic acid ester copolymer, depending on the content to be filled. An ionomer, a polyester resin, or the like can be appropriately selected and used.

In particular, an ethylene / α-olefin copolymer polymerized using a single site catalyst such as a metallocene catalyst has a narrow molecular weight distribution and a stable copolymerization ratio. It has excellent sealing properties, and is suitable for a sealant layer of a pouch having a level difference due to a difference in film overlap in a heat seal portion such as a standing pouch in that pinholes can be prevented from being generated due to omission of a seal.
Furthermore, by using a blend of an olefin elastomer with the copolymer, the heat fluidity of the sealant layer is improved, and the generation of pinholes due to the steps can be more effectively prevented.

Next, the manufacturing method of the refillable pouch of the present invention manufactured using the above laminated film will be described.
The refilling pouch according to the present invention can basically be manufactured according to the shape of the main body portion, that is, when the main body portion is a standing pouch type, using a conventional pouch making machine for standing pouches. .

只 It differs from a normal shaped pouch in the following points.
(1) A narrow outlet is provided in a part of the pouch.
(2) The side part of the said spout part is provided with the notch part for fixing to the opening part of a container as needed.
(3) Further, if necessary, easy opening means and a knob are provided in the spout portion.
(4) The wall surface film of the pouch is provided with bulges of various shapes from the vicinity of the spout part or from the spout part to a position near the bottom of the pouch obliquely downward.

  Therefore, a processing device for providing the additional components described in the above (1) to (4), that is, a trimming device for providing a spout part, a notch or the like, a heat sealing device or the like added or changed, And it can manufacture easily by, for example, embossing apparatus etc. for providing a bulging part in a pouch wall film in a bag making machine corresponding to each, such as a standing pouch bag making machine.

In addition, the bulge height of the bulge part provided in the said wall surface film is although it does not specifically limit, In the spout part, about 1-7 mm is preferable at the highest part, and about 2-5 mm is still more preferable. When the height of the highest part is less than 1 mm, the effect on the natural opening is reduced, and when it exceeds 7 mm, there is no need for it, and the processing itself becomes difficult and the spout part is bulky. This is not preferable because handling properties of empty bags and stacking suitability in a filling and sealing machine are deteriorated.
The height of the portion other than the spout portion of the bulging portion is lowered to about 1.8 to 0.5 mm by, for example, inclining at an intermediate portion where the width is gradually tapered from the spout portion toward an obliquely downward direction. be able to.

Hereinafter, the present invention will be described more specifically with reference to the drawings.
However, the present invention is not limited to these drawings. The same reference numerals are used for portions having the same names in different drawings.

FIG. 1 is a front view showing the configuration of a first embodiment of a refillable pouch according to the present invention.
(A), (b), (c), and (d) of FIG. 2 are enlarged cross-sectional views showing examples of the cross-sectional shape in the width direction of the bulging portion provided on the wall film of the refillable pouch shown in FIG. (A) is an enlarged cross-sectional view taken along the line AA in the case where the bulging portion is provided only on one (front surface) wall film, and (b) is an enlarged cross-sectional view taken along the line BB at that time. is there. (C) is an enlarged cross-sectional view taken along the line AA when the wall films on both the front and rear surfaces are symmetrically provided with bulges, and (d) is an enlarged cross-sectional view taken along the line BB at that time. is there.

  3 (a), (b), (c), and (d) are respectively the cross-sectional shapes in the width direction of the bulge portion provided on the wall film of the refill pouch shown in FIG. It is an expanded sectional view which shows a different example, (i) is an expanded sectional view in the AA line at the time of providing a bulging part only in one wall surface film (front surface), (b) is B- at that time It is an expanded sectional view in B line. (C) is an enlarged cross-sectional view taken along the line AA when the wall films on both the front and rear surfaces are symmetrically provided with bulges, and (d) is an enlarged cross-sectional view taken along the line BB at that time. is there.

  First, in FIG. 1, the refillable pouch 100 has a main body portion formed in a standing pouch form, and the bottom 1 is formed in a gusset form in which a film is folded inward according to a conventional method, and is folded inward. A cutout portion such as a semicircular shape is provided in the vicinity of the lower ends on both sides of the film, and is formed by heat sealing at the bottom heat seal portion 2 having a ship bottom shape. Further, the body portion of the pouch 100 is formed by heat-sealing both side edge portions of the wall film 5 on the front and rear surfaces with the body heat seal portion 3.

A narrow outlet spout 6 is formed in the upper corner of the pouch 100 by heat seal portions on both sides, and both sides thereof are cut off by the cutout portions 7a and 7b, and project into a neck shape. It is formed in the shape.
Further, in the vicinity of the tip of the spout 6, a knob 8 and a V-shaped notch 9 are provided at the same time as the notch 7 b when trimming the notch 7 b. In order to facilitate cutting and stabilize the directionality of the line, half-cut lines 11 (three in the figure) by laser light irradiation or the like are provided. Such a knob 8 and a notch 9 may be provided on the side of the notch 7 a or on both sides of the spout 6.

And in the wall film 5 of the pouch 100, as shown in the figure, the bulging part S heads obliquely downward from the spout part 6 over the center line in the width direction of the pouch, and from there to the intermediate part Is bent downward in a curved shape at the bottom, and is vertically lowered at the lower portion, and the width and height of the spout portion 6 (S ₁ ) are large, and the width and height are gradually decreased diagonally downward. The lower portion (S ₃ ) from the middle portion (S ₂ ) is provided with a constant width and height.
Such a bulging portion S may be provided only on one wall film 5 of the front and rear wall films 5, but can be provided symmetrically on both wall films 5.

Further, such a bulging portion S is preferably excellent in resistance to compression or restoration, and for that purpose, a cross-sectional shape in the width direction of the bulging portion S is provided as shown in FIGS. 2 and 3, for example. be able to.
That is, (a) in FIG. 2 is an AA line in the case where the bulging portion S is provided only on one of the wall films 5 of the refilling pouch 100 shown in FIG. The bulge portion S has a horizontal surface with a width of about 2 mm at the top, a sloping surface with shoulders on both sides of the bulge portion S, and a substantially vertical rising portion below it. .

In the case of adopting such a shape, the bulging portion S is formed by a combination of flat surfaces (a cross section in the width direction is a combination of straight lines), and a linear bent portion is formed at the boundary between the surfaces. The And since this bending part each has a rib effect, the resistance with respect to compression and a restoring property improve.
2B is also an enlarged cross-sectional view taken along the line B-B. The width w and the height h are smaller than in the case of FIG. As in the case of (A), about 2 mm is preferable, and the overall width (the width of the rising portion) w is preferably about 3 to 4 mm.

The height h of such a bulging portion S is as described above. For example, in FIG. 2 (a) (AA line portion), 2 to 5 mm, and (b) (BB line portion). Then, 1.8 to 1.0 mm is appropriate.
In addition, when such a bulging part S is provided symmetrically on the wall film 5 on both the front and rear surfaces, the cross-section of the AA line becomes a shape as shown in FIG. The cross section becomes a shape as shown in FIG.

Further, the bulging portion S can be provided as shown in (a), (b), (c), and (d) of FIG.
The shape of the bulge portion S is such that substantially vertical rising portions are provided not only under the inclined surfaces of the shoulders on both sides, but also on both sides of the upper horizontal surface. By adopting such a shape, Since the number of surfaces forming the bulging portion S increases and the number of linear bent portions formed at the boundary between the surfaces increases at the same time, the rib effect due to these increases, and the resistance to compression and the resilience are further increased. Can be improved.

  The upper heat seal part 4 of the pouch 100 is an unsealed opening before filling the contents, and after filling the contents from here, heat sealed to seal. This also applies to the refillable pouches shown in FIGS. 4, 5, and 7 to 12 below.

By adopting the configuration as described above, for example, the refillable pouch 100 filled with liquid content and degassed and sealed with the upper heat seal portion 4 is self-supporting, easy to handle, and excellent in appearance. ing.
Then, when transferring the filled contents to another container, the notch 9 is started by tearing the tip of the spout portion 6 in the direction of the half-cut line 11 by picking the knob 8 with a finger. As a result, the spout portion 6 can be opened easily.

The unsealed pouch 100 passes through the wall film 5 from the spout portion 6 through the substantially central portion of the pouch 100 to the pouch lower portion on the opposite side of the spout portion 6, and the bulging portion S (S ₁ , S ₂ , S ₃ ) are provided, and the spout portion 6 is automatically opened in a state of good shape retention by the bulging portion S ₁ just by placing the pouch 100 on a flat surface. Since the bulge part S ₂ from the part S ₁ to the bulge part S _{2 in} the middle part and further the bulge part S _{3 in the} lower part are folded outward due to the volume and weight of the contents, the pouch 100 is spread outward. The flow of goods to the spout and the spout from the spout can be performed smoothly.
The lower bulging portion S ₃ is provided vertically, since it has a rib effect, self-supporting pouch 100, form stability is improved.

  Therefore, the trunk portion of the pouch 100 is supported by hand, the opened spout portion 6 is inserted into, for example, the mouth of the bottle, and the contents are transferred while the notches 7a and 7b are applied to the mouth of the bottle. Therefore, the outlet can be fixed to the mouth of the bottle, and the outlet can be safely and easily transferred to the end without closing the outlet even when the viscosity is high.

FIG. 4 is a front view showing the configuration of the second embodiment of the refillable pouch according to the present invention.
The refilling pouch 110 shown in FIG. 4 has, in the configuration of the refilling pouch 100 shown in FIG. 1, notches 7 a and 7 b provided on both sides of the spout part 6 on one side, that is, in the drawing. The notch 7a is provided only on the left side of the spout 6 and is otherwise the same as the refillable pouch 100 shown in FIG. However, a notch 9 is additionally provided at a position connected to the half-cut line 11 of the notch portion 7a, and a knob portion can also be provided on the top of the notch 9, that is, on the tip side of the spout portion. .

  When such a configuration is adopted, when the content filled in the pouch is transferred to another container such as a bottle, it is difficult to insert the tip of the spout 6 into the mouth of the bottle, but the notch Since 7a can be transferred while being applied to the mouth of the bottle, it can be safely transferred in substantially the same manner as in the case of the refilling pouch 100 shown in FIG.

FIG. 5 is a front view showing a configuration of a third embodiment of the refillable pouch according to the present invention.
FIG. 6 is an enlarged cross-sectional view showing an example of a cross-sectional shape in the width direction of the bulge portion provided on the wall surface film of the refill pouch shown in FIG. 5, and (a) is one (front surface) wall film. It is an expanded sectional view in the AA line at the time of providing a bulging part only, (b) is an expanded sectional view in the BB line at that time.
(C) is an enlarged cross-sectional view taken along the line AA when the wall films on both the front and rear surfaces are symmetrically provided with bulges, and (d) is an enlarged cross-sectional view taken along the line BB at that time. is there.

The refilling pouch 120 shown in FIG. 5 has only the shape in the height direction of the bulging portion S provided on the wall film 5 of the pouch in the configuration of the refilling pouch 100 shown in FIG. From the portion S _{1 to} the portion S ₂ where the width and height are gradually reduced, the cross section in the width direction is, for example, as shown in the enlarged cross-sectional view along the line AA in FIG. In other words, the shape is changed to a shape having steps with different heights.
That is, the shape of the bulging portion shown in FIG. 6 (a) has a horizontal upper surface at the top, and a sloping surface with a first shoulder is connected to both sides of the bulging portion, and is perpendicular to each sloping surface. In other words, it has a rising portion, further has a second shoulder-inclined inclined surface on both sides from the lower end thereof, and further has a vertical rising portion connected to the lower side, that is, a shape having steps with different heights.

By adopting such a configuration, in addition to the function and effect described in the refilling pouch 100 shown in FIG. 1, the pouch center portion from the spout portion S ₁ having a particularly large width and height in the bulging portion S is used. The part that reaches S ₂ is formed with multiple faces in the height direction, and the number of linear bent parts at the boundary between the faces increases in a multi-row shape, so that the rib effect is improved and the strength of the bulge part of this part is increased. , The resistance to compression and the restoring force are increased, the natural opening of the spout and the shape retention are improved, and the flow path of the contents from the center of the pouch to the spout is more reliably formed. It becomes like this.
Therefore, the form stability of the pouch is improved, and the contents can be transferred more easily.

  Hereinafter, FIGS. 7 to 12 are diagrams for explaining the configurations of the fourth to ninth embodiments of the refillable pouch according to the present invention, in which (a) is a front view of the pouch, and (b) is It is an expanded sectional view in the AA line.

7, (a) is a front view of the refilling pouch 130. The pouch 130 is formed in a standing pouch form with its main body portion, and the upper corner of the pouch 130 faces obliquely upward. The spout portion 6 is provided in a slightly protruding shape by trimming the notch portions 7a and 7b on both sides, and the outer periphery thereof is formed on the upper portion of the left body heat seal portion 3 and the left portion of the upper heat seal portion 4. It is formed by heat sealing.
In addition, a knob 8 and a V-shaped notch 9 as an easy-opening means are provided at the same time on the right side near the tip of the spout 6 when the notch 7b is trimmed. Such knobs 8 and notches 9 can also be provided on both sides of the spout 6.
In addition, the direction of tearing can be further stabilized by providing a half-cut line by laser beam irradiation or the like at the position of the cut line 10 connected to the notch 9.

The wall film 5 on both sides of the pouch 130 is wide at the spout portion 6 from the spout portion 6 to a position near the pouch bottom corner on the opposite side of the spout portion 6 (S ₁ ). The curved bulging portion S, which is gradually tapered downward (S ₂ ) and has a crease shape at the lower portion (S ₃ ), is provided symmetrically so as to overlap the same position of the wall films 5 on both sides. It is configured.

  7B is an enlarged cross-sectional view taken along the line AA of the pouch 130 shown in FIG. 7A, and the opening has an oblong shape as shown in FIG. An example of the bulging shape of the part 6 is shown.

  By adopting the configuration as described above, the refillable pouch 130 filled with liquid content and degassed and sealed with the upper heat seal portion 4 is self-supporting, easy to handle, and excellent in appearance, When the contents are transferred to another container, the tip of the spout 6 is picked up by the finger 8 on the knob 8 and torn in the direction of the cut line 10, and then along the cut line 10 starting from the notch 9. Can be easily torn and the spout 6 can be opened.

The opened pouch 130 bulges on the wall film 5 on both sides from the spout portion 6 through the substantially central portion of the pouch 130 to a position near the pouch bottom corner on the opposite side to the spout portion 6. Since the part S is provided symmetrically so as to overlap at the same position, the spout part 6 is automatically opened by the bulging part S _{1 in a} state of good shape retention simply by placing the pouch 130 on a plane. In addition, the middle bulge portion S ₂ connected to the bulge portion S ₁ is expanded outward by the volume and weight of the contents, so that the flow of the contents to the spout portion and the dispensing from the spout are smooth. To be done.
The lower bulging portion S ₃ is a substantially vertical pushing ruffled like, since it has a rib effect, self-supporting pouch 130, form stability is improved.

  Then, when transferring the contents filled in the pouch 130 to another container such as a bottle, the body of the pouch 130 is supported by hand, and the opened spout part is inserted into, for example, the mouth part of the bottle and cut. The contents can be transferred while the notches 7a and 7b are applied to the mouth of the bottle, so the outlet is well fixed to the mouth of the bottle and the outlet is in the middle even with high viscosity contents. It can be safely and easily transferred to the end without closing.

The refilling pouch 140 shown in FIG. 8 (a) has the same structure as that of the refilling pouch 130 shown in FIG. Only the bulging shape of the bulging portion S ₁ is formed by changing the shape so that the upper portion in the height direction has a deformed triangular pyramid shape, and the pouch 140 is configured.

By adopting such a configuration, the portions other than the above-described changes have the same operations and effects as the refilling pouch 130 shown in FIG. 7, and the portion of the bulging portion S ₁ of the spout portion is as follows. The triangular pyramid-shaped ridgeline improves shape retention and restoring force.For example, when opening the spout, the force is removed even if the bulge of the opening is once flattened. Then, it naturally returns to its original state, and the opening opens in a rhombus shape with good shape retention as shown in FIG. Accordingly, the expansion of the inside of the pouch by the bulging portion S _{2 at} the intermediate portion is also stabilized.

The refilling pouch 150 shown in FIG. 9 (a) has the same structure as the refilling pouch 130 shown in FIG. Only the bulging shape of the bulging portion S ₁ is formed by changing the shape of the bulging portion so that a crease-like streak enters along the center line, thereby forming the pouch 150.
In this case, the cross-section of the opening of the spout part is formed, for example, by projections by the streaks at the upper and lower central parts of an ellipse, as shown in the enlarged cross-sectional view along line AA in FIG. It becomes the shape made.

By adopting such a configuration, the portions other than the above-described changes have the same operations and effects as the refilling pouch 130 shown in FIG. 7, and further, the portion of the bulging portion S ₁ of the spout portion Since the crease-like streaks provided along the center line at the top of the bulge portion exhibit a kind of rib effect similar to the ridgeline in FIG. 8, the shape retention property and restoring force of the bulge portion S ₁ are improved. And the natural opening of the opening is improved.
Moreover, the shape retention property of an opening part can further be improved by folding this after opening the spout part 6 outside.

The refilling pouch 160 shown in FIG. 10 (a) is not particularly different from the refilling pouch 130 shown in FIG. 7, but of the swollen portions S provided on the wall film 5 on both sides. , Note only the shape of the bulging portion S ₁ of the outlet section, from the tip of the spout to the rising portion, Note formed to expand the area to unit bulge on substantially the entire surface of the outlet are formed, which was composed of the pouch 160 is there.
The cross-sectional shape of the spout portion 6 taken along the line AA is, for example, an elliptical shape as shown in FIG. 10B, and is the same as the refillable pouch 130 shown in FIG.

By adopting such a configuration, the portions other than the above-described changes have the same operations and effects as the refilling pouch 130 shown in FIG. 7, and the changed portions of the bulging portion S ₁ of the spout portion are as follows. The substantially entire surface of the spout portion 6 opens greatly, and the inside of the pouch from the center portion of the pouch 160 to the spout portion can be further enlarged, so that the flow of the contents to the spout portion is further facilitated. In particular, even when the viscosity of the content is high, it can be poured smoothly.

The refilling pouch 170 shown in FIG. 11 (a) has the same structure as that of the refilling pouch 130 shown in FIG. Only the bulge shape of the bulge portion S ₁ is changed to a two-stage configuration with different heights, and the upper bulge portion is formed to be slightly smaller and independent island shape than the lower bulge portion to constitute the pouch 170. It is.
In this case, as shown in FIG. 11B, the cross section taken along the line AA of the spout portion 6 has a shape in which the films on both sides have steps with different heights.

In the case of this configuration, in the portion other than the above changes, have similar functions and effects as the refill pouch 130 shown in FIG. 7, and the height of the spout portion of the bulge portion S ₁ of the bulge shape By adopting a two-stage configuration, the resistance to the compression of this part and the restoring property are increased, and even when the bulging part is compressed when the spout part is opened, it can be easily restored to the original state. The natural opening and its shape retention are improved.
In the present invention, when the bulge portion of the spout portion is provided in a shape having a step having a different height, in addition to the two-step configuration as described above, it may be provided in two or more steps as appropriate depending on the material and dimensions of the pouch. it can.

The refilling pouch 180 shown in FIG. 12 (a) has the same structure as that of the refilling pouch 130 shown in FIG. Only the bulging shape of the bulging portion S ₁ is changed to a two-stage configuration having different heights, like the refilling pouch 170 shown in FIG. The pouch 180 is configured by gradually lowering the height toward the bulging portion S ₂ in the middle portion, not in an island shape, and forming it so as to be connected to the bulging portion S ₂ in the middle portion together with the lower bulging portion. is there.
The cross section taken along the line AA of the spout 6 of the pouch 180 has the same shape as that of the refillable pouch 170 shown in FIG. 11 as shown in FIG.

Even when such a configuration is adopted, the operation and effect thereof are substantially the same as those of the refilling pouch 170 shown in FIG.
That is, in the portions other than the above-described changed points, the same action and effect as the refilling pouch 130 shown in FIG. 7 are obtained, and the bulge shape of the bulge portion S ₁ of the changed spout portion is high. Since it has a different two-stage configuration, the resistance to the compression of this portion and the resilience increase, and even if the bulging portion is compressed when the spout 6 is opened, the spout can be easily restored to the original state. 6 natural opening and its shape retention.

It is a front view which shows the structure of the 1st Example of the refilling pouch of this invention. It is an expanded sectional view which shows an example of the cross-sectional shape of the width direction of the bulging part provided in the wall surface film of the refilling pouch shown in FIG. 1, (A) provides a bulging part only in one (front surface) wall film. (B) is an enlarged sectional view taken along line BB at that time. (C) is an enlarged cross-sectional view taken along the line AA when the wall films on both the front and rear surfaces are symmetrically provided with bulges, and (d) is an enlarged cross-sectional view taken along the line BB at that time. is there. It is an expanded sectional view which shows an example different from FIG. 2 of the cross-sectional shape of the width direction of the bulging part provided in the wall surface film of the refilling pouch shown in FIG. 1, (I) is only one (front surface) wall film. It is an expanded sectional view in the AA line at the time of providing a bulging part in (b), (b) is an expanded sectional view in the BB line at that time. (C) is an enlarged cross-sectional view taken along the line AA when the wall films on both the front and rear surfaces are symmetrically provided with bulges, and (d) is an enlarged cross-sectional view taken along the line BB at that time. is there. It is a front view which shows the structure of the 2nd Example of the refilling pouch of this invention. It is a front view which shows the structure of the 3rd Example of the refilling pouch of this invention. It is an expanded sectional view which shows an example of the cross-sectional shape of the width direction of the bulging part provided in the wall surface film of the refilling pouch shown in FIG. 5, (A) provides a bulging part only in one (front surface) wall film. (B) is an enlarged sectional view taken along line BB at that time. (C) is an enlarged cross-sectional view taken along the line AA when the wall films on both the front and rear surfaces are symmetrically provided with bulges, and (d) is an enlarged cross-sectional view taken along the line BB at that time. is there. It is a figure explaining the structure of the 4th Example of the refilling pouch of this invention, (A) is a front view of a pouch, (B) is an expanded sectional view in the AA line. It is a figure explaining the structure of the 5th Example of the refilling pouch of this invention, (A) is a front view of a pouch, (B) is an expanded sectional view in the AA line. It is a figure explaining the structure of the 6th Example of the refilling pouch of this invention, (A) is a front view of a pouch, (B) is an expanded sectional view in the AA line. It is a figure explaining the structure of the 7th Example of the refilling pouch of this invention, (A) is a front view of a pouch, (B) is an expanded sectional view in the AA line. It is a figure explaining the structure of the 8th Example of the refilling pouch of this invention, (A) is a front view of a pouch, (B) is an expanded sectional view in the AA line. It is a figure explaining the structure of the 9th Example of the refilling pouch of this invention, (A) is a front view of a pouch, (B) is an expanded sectional view in the AA line.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bottom part 2 Bottom heat seal part 3 Trunk part heat seal part 4 Upper heat seal part 5 Wall film 6 Outlet part 7a, 7b Notch part 8 Knob part 9 Notch 10 Cut line 11 Half cut line S Swell part S ₁ Outlet Swelling part S ₂ Swelling part S ₂ Swelling part 100 _3, 110, 120, 130, 140, 150, 160, 170, 180 Refillable pouch

Claims (2)

  In a refillable pouch of a standing pouch type, which has a narrow-width spout portion formed by heat seal portions on both sides at the upper corner portion, and in which a fluid content is sealed and packaged, the spout portion A notch is provided on the side of the pouch side, and at least one wall surface film of the pouch has a diagonally lower portion in the upper part from the spout to the center line in the width direction of the pouch. The bulging part of the shape that curves downward in a curved shape at the middle part from there, and descends vertically at the lower part, has a large width and height at the spout part, and gradually increases in width and height diagonally downward Characterized in that the width and height are constant below the curved middle part, and at least a half-cut line is provided as an easy-opening means in the spout part. I refill pouch that.   The refillable pouch according to claim 1, wherein the bulging portion is a combination of flat surfaces and has a cross-sectional shape in the width direction that is a combination of straight lines.

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