JP4171001B2 - Refillable pouch - Google Patents

Description

  The present invention relates to a refill pouch that seals and packs fluid contents such as liquids, viscous bodies, and powders, and transfers the contents to other containers during use. The present invention relates to a refilling pouch with an improved configuration of a spout and its vicinity so that it can be transferred more safely and easily by a simple operation when transferring to a container.

  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 In order to safely transfer to another container without spilling outside, the opening is provided in a part such as a corner, not in the entire pouch upper part, or a spout part with a small diameter is provided in a part of the pouch upper part. A method of forming, and a method of attaching a separate spout made of a plastic molding or the like by thermal bonding to a part of the upper part of the pouch 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.

  In addition, the method of forming a spout with a small diameter in the upper part of the pouch can improve the operability and safety when transferring the contents to some extent, but the flow is stabilized while the contents are being poured out. In particular, when the remaining amount is low, the pouch spout is likely to be clogged, and the fixing of the spout to the mouth of the container to be transferred becomes unstable, resulting in accidental spilling of the contents. 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 bottle can be manufactured with good quality, and the contents can be filled easily.In addition, when using the bottle, the tip of the spout provided at the corner of the pouch or in the vicinity of the corner is cut off to open the bottle. However, it is to provide a refillable pouch that is safe and easy to transfer to the end and that is inexpensive and excellent in suitability with high productivity.

The above problems can be solved by the following present invention.
That is, the invention described in claim 1, the edge portion of the periphery is sealed by heat sealing, the pouch contents having fluidity is sealed packaging having a shape directed upwardly to the corner of the pouch upper Notes An outlet portion is provided by a heat seal pattern, and a concave notch for fitting into the mouth portion of the container is formed on the center side of the pouch upper portion of the spout portion from the upper end of the pouch so as to be formed by a perforation line. The notch is provided at the opening position of the spout portion, and the notch is provided at the upper end of the pouch at the upper end portion of the perforation line and the opening position of the spout portion as the lower end portion, respectively. A straight crease line extending obliquely downward from the lateral lower part of the pouch center side of the spout part toward the pouch side part opposite to the side where the spout part is provided overlaps the wall film on both sides of the pouch at the same position. as It has been kicked consisting refill pouch according to claim.

  By adopting such a structure, when using a refillable pouch filled and sealed with contents, the heat seal part at the tip of the spout part is cut off to open the spout, and then the pouch is tilted sideways. By fitting a concave notch provided on the pouch upper center side of the spout portion into the mouth portion of the container to be transferred, the spout portion is securely fixed to the mouth portion of the container. At this time, the pouch is positioned so that the spout is on the upper side and the main body portion of the pouch is lower than that on the pouch. Therefore, after that, the contents can be safely poured out while gradually inverting the pouch.

  By pouring in this way, the contents do not flow out at the start of pouring, and there is a space above the pouring outlet, so that air can flow into the pouch according to the amount of pouring of the contents. Since the inside is decompressed and the spout is not blocked, it is possible to pour while watching the outflow state of the contents, so the flow can be easily adjusted and there is a sense of security. You can safely move things without spilling out.

Further, in the invention described in claim 1, wherein the note from the side lower portion of the pouch center side of the outlet portion, straight folds extending obliquely downward toward the pouch side portion opposite to the side provided with the spout It is set as the structure provided so that a line might overlap the wall surface film of a pouch both sides in the same position.
Such a crease line can be easily provided by, for example, a hot embossing method using a male mold and a female mold, and the apparatus is incorporated at a position before the wall films on both sides of the pouch are overlapped by the bag making machine. This can be provided in-line with the bag making.

  By adopting such a configuration, when transferring the contents filled in the pouch to another container, the fold line can be folded, and the pouch can be poured out while supporting the pouch by hand from below, The touch becomes soft, it is easy to support, and the contents can be transferred more easily.

  In the present invention, the form of the pouch body is not particularly limited, and any form such as a standing pouch as well as a flat pouch such as a three-side seal type, a four-side seal type, and a pillow type can be used.

  Further, in the refilling pouch of the present invention, the filling of the contents, like a normal pouch, the upper heat seal part is an unsealed opening before filling the contents, and the contents are filled from this part, It can then be heat sealed and sealed. In addition, for example, the vicinity of the spout portion of the upper corner of the pouch is heat-sealed first, the remaining upper heat-sealed portion is an unsealed opening, the contents are filled from this portion, and then this opening May be heat sealed.

  As described above in detail, according to the present invention, bag making and filling of contents can be easily performed, and when used, the spout part can be easily opened, and the contents to other containers such as bottles can be opened. In the case of transfer, the concave notch provided on the center side of the top of the pouch of the spout is fitted to the mouth of the container by tilting the pouch sideways so that the spout is securely fixed to the mouth of the container. In addition, at this time, since the pouch main body part filled with the contents is turned down with the spout up, it can be poured while gradually lifting the pouch main body part into a pendulum shape, The inside of the pouch is decompressed and the spout is not blocked in the middle, and a refillable pouch that can be safely and easily transferred with a stable flow to the end can be provided with high productivity and low cost.

Embodiments such as a film used for producing the refillable pouch of the present invention and a bag making method thereof will be described below.
First, the film used for the production of the refillable pouch of the present invention is mainly a laminated film mainly made of plastic, but is not particularly limited, and any known laminated film used for various pouches is used. 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.
Specific examples of the structure 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 / 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 A terephthalate film and EVOH film refer to a saponified ethylene-vinyl acetate copolymer film, and a 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 structure of the laminated film, the ON film and the PET film give the pouch mechanical strength and printability as the base film, and the uniaxially stretched HDPE film and the uniaxially stretched PP film open the pouch in the stretch direction. By using it so as to coincide with the tear direction at the time, the directionality of the tear 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 metallocene catalyst has a narrow molecular weight distribution and a stable copolymerization ratio, so it has excellent low-temperature heat sealability and hot sealability. Therefore, it is suitable for a sealant layer of a pouch having a step due to a difference in film overlap in a heat seal portion such as a gusset pouch and a standing pouch in that pinholes due to omission of seals can be prevented.
Furthermore, by using the copolymer blended with an olefin-based 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, the manufacturing method of the refillable pouch of the present invention manufactured using the above laminated film will be described.
As described above, the refillable pouch according to the present invention is mainly characterized by the shape of the upper part of the pouch, and the form of the pouch body is not particularly limited. For example, the three-side seal type, the four-side seal In addition to flat pouches such as a form and a pillow form, any form such as a standing pouch can be adopted.

  Therefore, in the bag making of the refill pouch according to the present invention, conventionally known bag making machines can be used according to the form of the main body part, respectively, and the spout part and the concave notch part can be used. And, a heat seal device, a trimming device, an embossing device, and other processing for providing a notch portion such as a shape corresponding to the shape of the body portion from the shoulder portion of the container, a notch or other easy opening processing portion, a crease line, etc. By incorporating the apparatus or preparing a part of them in a separate line, the refillable pouch of the present invention can be easily manufactured by either an inline or offline method.

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

1 to 15 are front views for explaining the configuration of an embodiment of the refilling pouch according to the present invention. In each figure, the upper heat seal part 5 at the upper part of the pouch is heat-sealed after the contents are filled.
In FIG. 1, the refillable pouch 60 has a main body formed in a standing pouch form. That is, the bottom portion 1 is formed in a gusset form in which the film is folded inward according to a conventional method, and a semicircular cutout portion is provided in the vicinity of the lower ends on both sides of the film folded inward, although not marked. The bottom part 1 is heat-sealed by the bottom part heat seal part 2 by a boat-shaped seal pattern, and the body part of the pouch heats both side edges of the wall film on the front and rear surfaces by the body part heat seal part 3. It is formed by sealing.

And the spout part 6 is extended in the corner part (right corner part in a figure) of the upper part of a pouch, and the edge part around the upper side is connected so that the inside may communicate with the inside of a pouch main body. Is sealed by the upper part of the spout part heat seal part 4 and the trunk part heat seal part 3.
Moreover, the concave notch part 7 for making it fit in the mouth part of a container is provided in the pouch upper center side of the spout part 6, and the edge part (heat seal part) of the spout part 6 on it is provided. Is provided with a V-shaped notch 9 as an easy opening processing portion.

  In the refill pouch 60 having such a form, before filling the contents, for example, the upper heat seal portion 5 is opened without being sealed, and the liquid content is filled from this portion with a filling and sealing machine, and thereafter The upper heat seal portion 5 can be heat-sealed and sealed and packaged by degassing seal or the like.

The shape of the upper heat seal portion 5 may be a normal linear pattern having a constant width. However, when the contents are transferred by heat sealing with a pattern having an inclination as shown in the figure, it remains more easily. It can be transferred so that there is no liquid.
Further, such a refilling pouch 60 is self-supporting after filling the contents, has an excellent appearance, and is easy to handle. When the contents are transferred to another container such as a bottle, the notch 9 is provided. The spout 6 is opened by using it, and the pouch is tilted sideways so that the concave cutout 7 is fitted to the mouth of the container, so that the spout is fixed. As shown in FIG. Since it can be moved with the spout up and the main body part down, it can be poured out with a space above the tilted spout, and the inside of the pouch is decompressed and spout Can be safely and easily transferred with a stable flow until the end.

  The refilling pouch 70 shown in FIG. 2 is identical to the refilling pouch 60 shown in FIG. 1 in the construction of the upper part of the pouch, only in that the main body portion of the pouch is made in a four-sided seal form. Is different. Therefore, the pouch after filling the contents is not self-supporting and is somewhat 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, and effect at the time of transferring are substantially the same, it is excellent as a low-priced refilling pouch.

  The refill pouch 80 shown in FIG. 3 has the same structure as that of the refill pouch 60 shown in FIG. 1, but when the concave cutout 7 is fitted to the mouth of the container with the pouch tilted sideways, A notch portion 8 having a shape corresponding to the shape of the shoulder portion from the shoulder portion is further provided at the edge of the upper portion of the pouch.

  By adopting such a configuration, in addition to the features, operations, and effects described in the refill pouch 60 having the configuration shown in FIG. 1, the concave cutout portion 7 is fitted into the mouth portion of the container. As shown in FIG. 14, the upper part of the pouch does not get in the way when it hits the shoulder or trunk of the container, and it can be easily fitted, and the spout can be fixed to the container mouth. It can be performed in a stable state, and the contents can be transferred more safely and easily.

The refilling pouch 90 shown in FIG. 4 is the same as the refilling pouch 80 shown in FIG. 3 in the structure of the upper part of the pouch, and the main body part of the pouch is changed from a standing pouch to a four-sided seal form. It differs only in the point that it was bagged.
Therefore, in this case as well, the pouch after filling the contents is not self-supporting and is somewhat inferior in terms of ease of handling and appearance, but has the advantage of easy bag making, good productivity, and low cost. In addition, since the operability, action, effect, etc. at the time of transferring the contents are the same as those of the refilling pouch 80 shown in FIG. 3, it is useful as a low-priced refilling pouch.

  The refilling pouch 100 shown in FIG. 5 is similar to the refilling pouch 60 shown in FIG. 1 in that the pouch body is formed in a standing pouch form, but the shape of the upper heat seal portion 5 is changed as shown in the figure. The spout portion 6 is provided at the corner portion of the upper portion of the pouch so that the upper portion does not protrude from the line at the upper end of the pouch, and the spout portion 6 is fitted to the mouth portion of the container at the center side of the upper portion of the pouch. By providing the concave notch portion 7 in the shape as shown in the figure, the knob 12 and the notch-shaped acute angle portion used when the heat seal portion at the tip of the spout portion 6 is cut and opened are formed. Further, on the wall film on both sides of the pouch, a straight line extending obliquely downward from the lateral lower part of the pouch center side of the pouch part 6 toward the side of the pouch opposite to the side where the spout part 6 is provided. Is constructed by providing fold lines 11 so as to overlap at the same position of the wall film.

  By adopting such a configuration, the refillable pouch 100 filled with the contents has a self-supporting property, and the spout part 6 does not protrude from the upper part of the pouch, so that it is easy to handle during transportation, display, etc. Yes, at the time of use, the spout part 6 can be easily opened using the knob 12 and the acute angle part of the notch shape, and the bottom of the concave notch 7 is fitted to the mouth of a container such as a bottle. Thus, the spout portion is fixed to the mouth portion of the container, and by folding the crease line 11, the pouch can be easily supported by hand, and the contents can be transferred safely and easily.

  The refilling pouch 110 shown in FIG. 6 is different from the refilling pouch 100 shown in FIG. 5 in that the bottom part 1, the body heat seal part, the upper heat seal part, the spout part 6, and the crease line 11. The configuration is the same, and only the concave notch provided on the center side of the pouch upper portion of the spout 6 is changed to a perforation line 10 and notches 9 and 9 'at both ends as shown in the figure. is there.

  By adopting such a configuration, since the concave notch is not cut out in advance, there is an advantage that when filling the contents, the entire upper part of the pouch can be easily filled and sealed as an opening, Further, when the contents are transferred to a bottle or the like, the notch 9 is used as a starting point, and the perforation line 10 is cut off, so that a concave notch similar to the refilling pouch 100 shown in FIG. Then, the tip 12 of the spout 6 can be easily cut off and opened by picking the knob 12 and tearing it laterally using the I-shaped notch 9 '. . Therefore, thereafter, the contents can be safely and easily transferred in the same manner as the refilling pouch 100 shown in FIG.

The refilling pouch 120 shown in FIG. 7 is configured by partially changing the configuration of the refilling pouch 80 shown in FIG.
The change location is that the position of the spout 6 is moved slightly closer to the center from the corner of the top of the pouch, and on the concave notch 7, that is, on the upper side surface of the spout 6 at the center of the pouch. The width of the heat seal part is widened to provide a knob 12 to facilitate the opening of the spout part 6, and in the figure, the upper heat seal part 5 on the right side of the spout part 6 is raised upward to indicate a swollen part (reference numeral) When the contents are transferred, the transfer operation can be made easier by grasping this portion.

  Therefore, by adopting the configuration of the refilling pouch 120 shown in FIG. 7, in addition to the action and effect of the pouch described in FIG. 3, the spout 6 can be opened more easily. This has the effect of making the transfer operation easier.

The refilling pouch 130 shown in FIG. 8 is also configured by partially changing the configuration of the refilling pouch 80 shown in FIG. 3, similarly to the refilling pouch 120 shown in FIG. 7.
In this case, the changed part moves the position of the spout part 6 from the corner part of the upper part of the pouch slightly closer to the center part, and widens the width of the heat seal part on the upper side surface on both sides of the spout part 6, This is a point where a knob 12 is provided.

By providing such a knob piece 12, the acute angle portion of the notch under the knob piece 12 serves as a notch by picking the knob piece 12 from either the left or right side and pulling it in the lateral direction, making it easier. The spout 6 can be opened.
Moreover, since the shape of the upper part of the spout part 6 becomes a shape similar to the cap of a bottle by providing such a knob piece 12 on both sides, the effect which can discriminate | determine the position of the spout part 6 at a glance. Play.
Therefore, by adopting a configuration like the refilling pouch 130 shown in FIG. 8, in addition to the action and effect of the pouch described in FIG. 3, the above action and effect can be obtained.

FIG. 9 is a front view showing a configuration of an embodiment of the refilling pouch according to the second aspect of the present invention. The refilling pouch 140 has a pouch body formed in a standing pouch shape, and a corner portion ( In the drawing, the spout 6 extends so as to slightly protrude at the right corner portion), and the periphery thereof is sealed by a part of the upper heat seal portion 5 and the upper portion of the right body heat seal portion 3. Yes. And the heat seal part of the front-end | tip of the spout part 6 is provided in the pouch upper center side of the spout part 6 in the shape shown in the figure at the concave notch part 7 fitted to the opening part of a container. The knob 12 is used for cutting and opening, and a notch-shaped acute angle portion is formed thereunder.
Further, in the vicinity of the upper portion of the body heat seal part 3 on the spout part 6 side, a bulging part 13 that swells in an arc shape as shown in the figure is provided so that the spout part 6 opens in a reverse funnel shape. Has been.

By adopting such a configuration, the pouch is self-supporting, and when using the pouch filled and sealed with the contents, the notch-shaped acute angle portion formed by the knob 12 and the notch portion 7 below it, The spout 6 can be easily opened.
The opened spout part 6 has a reverse funnel shape toward the inside of the pouch due to the upper heat seal part 5 below the notch part 7 and the bulging part 13 of the body heat seal part 3 on both sides. Therefore, when the contents are poured out, it is easy to open and its shape retention is good.
Therefore, the concave notch 7 which is the original usage of this pouch is fitted into the mouth of the container, and the pouch main body is positioned below the spout 6 with the spout 6 facing up. As with normal pouches, as well as with normal pouches, even when the pouring is performed with the pouring port 6 positioned downward, the opening is stabilized, so that the opening is not blocked in the middle. The contents can be safely transferred to the container until the end.
Moreover, since the spout part 6 is provided so as to protrude above the pouch, the length can be easily adjusted, the filling capacity of the contents for the pouch can be increased, and the pouch can be used effectively. This has the effect that the dispensing operation can be easily performed.

The refilling pouch 150 shown in FIG. 10 has the same structure as the refilling pouch 140 shown in FIG. 9 except that the spout portion 6 is formed on the wall film on both sides of the pouch from the lateral lower portion on the pouch center side of the spout portion 6. A linear crease line 11 extending obliquely downward toward the side of the pouch opposite to the provided side is additionally provided so as to overlap with the same position of the wall film.
By adopting such a configuration, in addition to the operations and effects described in the refilling pouch 140 shown in FIG. 9, when the contents are transferred to another container, the crease line 11 is folded and this portion is used. Since the pouch can be supported and poured out from below, the touch becomes soft, easy to support, and the contents can be transferred more easily.

  The refill pouch 160 shown in FIG. 11 is different from the refill pouch 140 shown in FIG. 9 in that the bulging portion 13 of the body heat seal portion 3 on the side where the spout portion 6 is provided In this configuration, a cutout portion 14 having a shape corresponding to the bulge portion 13 is additionally provided outside the bulge portion 13 so as to have substantially the same width as the body heat seal portion.

By adopting such a configuration, in addition to the operations and effects described with reference to the refilling pouch 140 shown in FIG. 9, when the contents are transferred to another container, there is an extra resistance against the opening of the spout. Therefore, an opening having a stable shape is formed more smoothly and its shape retention is improved.
Therefore, the contents can be transferred safely and easily to the end without closing the opening during the pouring.

  The refilling pouch 170 shown in FIG. 12 is different from the refilling pouch 160 shown in FIG. 11 in that the spout portion 6 is formed on the wall film on both sides of the pouch from the lateral lower portion of the pouch center side of the spout portion 6. A linear crease line 11 extending obliquely downward toward the pouch side opposite to the provided side is additionally provided so as to overlap with the same position of the wall film.

  By adopting such a configuration, in addition to the operations and effects described in the refilling pouch 160 shown in FIG. 11, when the contents are transferred to another container, the crease line 11 is folded, Since the pouch can be poured out from the bottom while being supported by the hand, the touch becomes soft, easy to support, and the contents can be transferred more safely and easily.

  The refilling pouch 180 shown in FIG. 13 has a configuration corresponding to one embodiment of the invention described in claim 7. In the configuration of the refilling pouch 170 shown in FIG. From the lateral lower part of the side toward the pouch side opposite to the spout part 6, a linear crease line 11 extending diagonally downward provided on the wall film on both sides of the pouch is provided, and its upper extension line serves as an opening part of the spout. It is provided to pass.

  By adopting such a configuration, in addition to the operations and effects described in the refilling pouch 170 shown in FIG. 12, when the contents in the pouch are transferred to another container, the linear crease line is bent. By supporting this part from the bottom with the hand, it is possible to keep the films on both sides of the spout part curved outward, that is, the spout can be held in a cylindrical shape. The shape retention of the opening is improved, and the spout is not blocked during pouring, and the contents can be safely transferred to the end more easily.

  A refill pouch 190 shown in FIG. 14 has a configuration corresponding to an embodiment of the invention described in claim 8. In the configuration of the refill pouch 180 shown in FIG. In the area of the upper corner portion of the pouch that is partitioned, the crease line 11 is provided at the bottom, and a plurality of crease lines 11 are provided on the fold line 11 so as to be parallel thereto.

  By adopting such a configuration, in addition to the operations and effects described in the refilling pouch 180 shown in FIG. 13, when the contents in the pouch are transferred to another container, a plurality of crease lines 11 are used. The upper corner portion of the pouch can be easily folded at any position, and this also serves as a non-slip, and can be poured while appropriately changing the folding position of the crease line 11 according to the amount of contents. Therefore, particularly when the amount of the contents is large, such as in the initial stage of dispensing, the deep folding position is taken too much, so that no excessive internal pressure is applied, and the contents can be transferred more safely and easily.

  The refilling pouch 200 shown in FIG. 15 also has a configuration corresponding to one embodiment of the invention described in claim 8, and in the configuration of the refilling pouch 180 shown in FIG. In the area of the upper corner portion of the pouch that is partitioned, the crease line 11 is provided at the lowermost stage, and a plurality of crease lines 11 are provided on the fold line 11 so as to spread radially from the vicinity of the upper end thereof.

  By adopting such a configuration, in addition to the operations and effects described in the refilling pouch 180 shown in FIG. 13, in this case as well, when transferring the contents in the pouch to another container, a plurality of The upper corner portion of the pouch can be easily folded at any position by the crease line 11, and this also prevents slipping, and further, the fold line 11 is poured out while changing the fold line 11 appropriately according to the amount of contents. Therefore, the contents can be transferred more safely and easily.

FIG. 16 is an explanatory view of a main part showing a state when the contents filled in the refilling pouches 60 and 70 shown in FIG. 1 or 2 are transferred to a container (bottle).
As shown in FIG. 16, an open spout 40 is formed in a container (bottle) 50 by fitting a concave cutout provided on the center side of the pouch spout into the mouth 51 of the pouch. Since the contents can be transferred with the pouch spout 40 facing up and the main body part facing down, there is a space above the spout 40 and the amount of spout Accordingly, since air enters the pouch from this portion, the inside is not depressurized, and the contents can be safely and easily transferred to the end with a stable flow without blocking the outlet.

FIG. 17 is an explanatory diagram of a main part showing a state when the contents filled in the refilling pouches 80 and 90 shown in FIG. 3 or 4 are transferred to a container (bottle).
In FIG. 17, the refilling pouches 80, 90 are provided with a spout 6 at the corner of the top of the pouch, as shown in FIG. When the concave notch 7 for fitting to the mouth 51 of the container is provided, and the concave notch 7 is further fitted to the mouth 51 of the container by tilting the pouch sideways. A notch portion 8 having a shape corresponding to the shape of the body portion from the shoulder portion of the container is provided at the edge of the upper portion of the pouch.

  Therefore, as shown in FIG. 17, the spout part 6 of the refillable pouches 80, 90 is opened to open the spout 40, and the pouch is tilted sideways so that the concave notch part 7 is connected to the mouth part 51 of the container. The upper part of the pouch can be fitted to the container 50 without being disturbed by the upper part of the container 50 being hit by the shoulder part or the body part of the container 50, and the fixing of the spout 40 to the container mouth part 51 is further stable. The transfer operation of the contents can be further facilitated, and the spout can be safely and easily transferred to the end with a stable flow without being blocked in the middle.

[Test Example 1]
A refillable pouch having the structure shown in FIG. 1 is prepared, and a biaxially stretched nylon film (ON) having a thickness of 15 μm and a linear low density polyethylene film (L·LDPE) having a thickness of 100 μm are prepared in accordance with a conventional method. A laminated film was prepared by laminating by a dry laminating method, and this was used in common for the wall film and the bottom film, and the dimensions of each part of the pouch were set as follows to prepare the refillable pouch of Test Example 1. .

The outer dimensions of the main part of the pouch are 150 mm wide and 230 mm long. The bottom 1 is 40 mm high, and the bottom heat seal part 2 is heat-sealed with a boat-shaped seal pattern. 1 and the left and right body heat seal portions 3 were heat sealed with a seal width of 5 mm.
The spout portion 6 has a width of 33 mm and a height of 15 mm so as to extend to the right side end of the upper side of the pouch body, and the surrounding heat seal portion has a width of 5 mm at the top and right side and a width of 7 mm at the left side. Further, at the lower left part (position corresponding to the upper part of the pouch main body), it was widened to 12 mm and heat-sealed. At this time, the width of the opening (upper heat seal portion 5) remaining on the upper portion of the pouch is 107 mm.

Moreover, the concave notch part 7 provided in the pouch upper center side of the spout part 6 was made to become 4 mm in width and 3 mm in depth.
The effective folding diameter (width excluding the seal portion) of the spout portion 6 is 21 mm. And the easy-opening process part was provided in the position of 2.5 mm on the said concave notch part 7 as the V-shaped notch 9, and was comprised.
Further, the heat seal pattern used for sealing the opening heat seal portion 5 after the filling of the contents has a slope shape in which the seal width at the left end is 35 mm and the seal width at the right end is 7 mm. It was.

The refillable pouch produced in Test Example 1 as described above was filled with 550 ml of liquid hair wash as the contents from the upper opening, and then the opening was sealed with a degassing seal to produce a package. (20 samples)
The packaged body had no problem with independence even after storage at 35 ° C. for 3 months, had a good appearance, and no leakage of contents was observed.
In addition, in order to test the suitability for use, as a result of opening the spout using a notch and transferring the contents to a plastic bottle having an inner diameter of 22 mm, the opening of the spout and the concave shape The fixing of the spout to the bottle mouth by the notch 7 was good, and the contents could be safely and easily transferred to the end without spilling the contents.

[Test Example 2]
A refillable pouch having the structure shown in FIG. 3 is prepared. The laminated film includes a PET film (thickness 12 μm), an ON film (thickness 15 μm), an aluminum foil (thickness 7 μm), and L / LDPE. Use a laminated film in which the films (thickness 70 μm) are laminated together in the order of the dry laminate method. Also, regarding the dimensions of each part, only the following parts are changed among the dimensions of each part of the refill pouch of Test Example 1. Thus, a refillable pouch of Test Example 2 was produced.

The refilling pouch 80 shown in FIG. 3 is different from the refilling pouch 60 shown in FIG. 1 in that a concave cut provided on the center side of the pouch upper portion of the spout 6 extending to the corner portion of the pouch upper portion. When the notch 7 is fitted to the mouth of the container to which the contents are to be transferred, a notch 8 having a shape corresponding to the shape of the trunk from the shoulder of the container is further provided at the edge of the upper part of the pouch. This is the point.
Therefore, when the notch portion 8 is provided as it is in the refilling pouch of Test Example 1, the filling capacity is reduced by that amount. Therefore, the main portion of the pouch is made longer to compensate for this. is there.

Now, as a container to be transferred, the bottle has a shape with a mouth of 15 mm in length, a shoulder width (width on one side) of 20 mm, and a barrel formed by a substantially vertical line from the tip of the shoulder. The shape of the pouch is the same as that of the refilling pouch of the test example 1 with the spout 6 and the concave notch 7 provided on the upper center side of the pouch and the V-shaped notch 9. The length of the pouch main body is 20 mm longer than that of the pouch of Test Example 1, and the notch 8 provided at the edge of the upper part of the pouch is placed at the center of the pouch from the bottom of the recess of the concave notch 7. A refillable pouch of Test Example 2 was prepared by providing a shape starting from a position of 15 mm on the side and having a depth of 20 mm in a slightly diagonally downward direction from here to the left end of the pouch in the left lateral direction. .
The width of the opening (upper heat seal portion 5) of this refilling pouch was 97 mm, and after filling the contents, the width of the heat seal pattern for heat sealing this portion was also changed accordingly.

In the same manner as in Test Example 1, the refillable pouch produced in Test Example 2 was filled with 550 ml of liquid hair washes as the contents from the upper opening, and the opening was sealed with a degassing seal and packaged. The body was made. (20 samples)
The packaging body was also subjected to a storage test at 35 ° C. for 3 months. However, both the self-supporting property and the appearance were good, and the contents did not leak.
In terms of suitability for use, the notch opening is good, and the transfer to a plastic bottle with an inner diameter of the mouth of 22 mm is also possible by using the concave notch 7 provided on the pouch upper center side of the spout. When fitting into the mouth, the upper part of the pouch can be easily fitted without being obstructed by hitting the shoulder or body of the bottle, and the spout can be fixed to the bottle mouth more reliably and with a stable flow. The contents could be transferred safely and easily to the end.

It is a front view explaining the structure of the 1st Example of the refilling pouch of this invention. It is a front view explaining the structure of the 2nd Example of the refilling pouch of this invention. It is a front view explaining the structure of the 3rd Example of the refilling pouch of this invention. It is a front view explaining the structure of the 4th Example of the refilling pouch of this invention. It is a front view explaining the structure of the 5th Example of the refilling pouch of this invention. It is a front view explaining the structure of the 6th Example of the refilling pouch of this invention. It is a front view explaining the structure of the 7th Example of the refilling pouch of this invention. It is a front view explaining the structure of the 8th Example of the refilling pouch of this invention. It is a front view explaining the structure of the 9th Example of the refilling pouch of this invention. It is a front view explaining the structure of the 10th Example of the refilling pouch of this invention. It is a front view explaining the structure of the 11th Example of the refilling pouch of this invention. It is a front view explaining the structure of the 12th Example of the refilling pouch of this invention. It is a front view explaining the structure of the 13th Example of the refilling pouch of this invention. It is a front view explaining the structure of the 14th Example of the refilling pouch of this invention. It is a front view explaining the structure of the 15th Example of the refilling pouch of this invention. It is explanatory drawing of the principal part which shows the state at the time of transferring the contents with which the refilling pouch shown in FIG. 1 or FIG. 2 was filled into a container (bottle). It is explanatory drawing of the principal part which shows the state at the time of transferring the content with which the refilling pouch shown in FIG. 3 or FIG. 4 was transferred to a container (bottle).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bottom part 2 Bottom heat seal part 3 Trunk part heat seal part 4 Outlet part heat seal part 5 Upper heat seal part 6 Outlet part 7 Concave notch part 8, 14 Notch part 9, 9 'notch
10 Perforated line
11 Crease line
12 Picks
13 Bulge
40 Outlet
50 containers (bottles)
51 Mouth of container (bottle)
60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200 Refillable pouch

Claims (1)

In the pouch in which the peripheral edge portion is sealed by heat sealing and the contents having fluidity are hermetically packaged, a spout portion having a shape facing upward is provided in the corner portion at the top of the pouch, and the heat sealing pattern is provided. A concave notch for fitting into the mouth of the container is provided from the upper end of the pouch from the upper end of the pouch to the opening position of the spout so that it can be formed by the perforation line. The upper end of the pouch at the upper end of the perforation line and the opening position of the spout port serving as the lower end are each provided with a notch , and further from the lateral lower part of the pouch central side of the spout port. The linear crease line extending obliquely downward toward the pouch side opposite to the side on which the spout is provided is provided so as to overlap the wall film on both sides of the pouch at the same position. Clog Pouch for instead.

Images