JP2014012543A - Refill pouch - Google Patents

Abstract

In a refilling pouch in which a spout is formed of front and back films, the spout is easily opened when the contents are poured out.
A refill pouch has a barrel 3 formed of front and back barrel films, side seals joined to both sides thereof, and a spout forming portion 11 having a spout 10 opened. Projecting from part 3. The spout forming portion 11 is formed by joining the peripheral portions of the front and back films, and one film thickness of the front and back films of the spout forming portion 11 is thinner than the other film thickness. In the aspect in which the spout forming portion 11 is in the upper center portion of the trunk portion 3, the thin film is used as the inside of the front and back films of the spout forming portion 11 and is folded in two vertically from the spout forming portion 11 to the bottom. can do.
[Selection] Figure 6

Description

  The present invention relates to a refill pouch.

  Standing pouches are widely used as refill containers for liquid cleaning agents. As such a refilling pouch, the front and back films forming the body film are projected at the upper end of the body, and the peripheral edge is joined to form the spout forming portion, and the tip is cut off. What is used as a spout for contents has become widespread. In addition, there has been proposed a pouch that is vertically folded from the top spout to the bottom so that the content can be poured out to the end while squeezing out the content (Patent Document 1).

  However, in the case where the spout forming part is formed of the front and back films, the spout is difficult to spread when the contents are poured out because the front and back films are closely overlapped at the spout even after the spout is opened. . In the conventional pouch used by folding vertically, the pouch is folded in half, so that the front and back films forming the spout are not easily separated from each other, so that the spout is more difficult to open. Therefore, when a high viscosity liquid is poured out as the contents, there is a problem that the outlet is easily clogged and it takes time to pour the contents into the refill destination container.

JP 2001-31120 A

  In contrast to the above-described prior art, an object of the present invention is a refilling pouch in which the spout is formed of front and back films, and the spout is easily opened when the contents are poured out, and a high viscosity liquid is poured. The present invention relates to a refilling pouch that can quickly complete a refilling operation without closing a spout when it is taken out.

  When the inventor of the present invention forms the spout of the pouch from the front and back films, if the thickness of one of the front and back films is made thinner than the thickness of the other film, the thin film is thick due to the hydraulic pressure at the time of pouring. The present invention has been completed with the idea that the spout is wide open away from the center.

  That is, the present invention is a refill in which the body part is formed of a body film on the front and back sides, side seals are bonded to both sides, and the spout forming part where the spout opens is protruding from the body part. The pouch has a spout forming portion formed by joining the peripheral portions of the front and back films, and one of the front and back films of the spout forming portion is thinner than the other film. Provide replacement pouches.

  In the refilling pouch according to the present invention, the spout forming portion is formed of front and back films, and one of the film thickness is thinner than the other film, so that the contents are poured from the spout opening at the spout forming portion. When it is taken out, the opening area of the spout becomes wider at the spout because the thin film is separated from the thick film by the liquid pressure of the contents. For this reason, even if the content is a high-viscosity liquid, it is possible to prevent the spout from being blocked and to quickly complete the refilling operation.

FIG. 1A is a perspective view of the front side of a refilling pouch 100A according to an embodiment. FIG. 1B is a perspective view of the back side of the refilling pouch 100A according to the embodiment. FIG. 2A is a perspective view of the vicinity of the spout when the refilling pouch 100A of the embodiment is opened. FIG. 2B is an explanatory diagram of the action of the spout when the contents are refilled from the refilling pouch 100A according to the embodiment into the main container. FIG. 2C is an explanatory diagram of a method for refilling the contents from the refilling pouch 100A according to the embodiment into the container. FIG. 3A is an explanatory diagram of a method for manufacturing the refilling pouch 100A according to the embodiment. FIG. 3B is an explanatory diagram of a manufacturing method of the refilling pouch 100A according to the embodiment. FIG. 4 is a plan view of a wide pouch 101A used for the bi-fold pouch 102A of the embodiment. FIG. 5 is a perspective view of the two-fold pouch 102A of the embodiment. FIG. 6 is a perspective view of the bi-fold pouch 102A according to the embodiment when the pouch 102A is opened. FIG. 7A is an explanatory diagram of the action of the spout when the contents are refilled from the folded pouch 102A of the embodiment into the main container. FIG. 7B is an explanatory diagram of the action of the spout when the contents are refilled from the half-folded pouch 102A of the embodiment into the main container. FIG. 8 is a plan view of a wide pouch 101B used in the refilling pouch of the embodiment. FIG. 9 is a plan view of a wide pouch 101C used in the refilling pouch of the embodiment. FIG. 10 is a plan view of a wide pouch 101D used in the refilling pouch of the embodiment.

  Hereinafter, the present invention will be specifically described with reference to the drawings. In addition, in each figure, the same code | symbol represents the same or equivalent component.

1A is a front perspective view of a refilling pouch 100A according to an embodiment of the present invention, and FIG. 1B is a rear perspective view thereof.
This refilling pouch 100A is filled with a liquid content to be refilled in this container. The body 3 is formed by front and back body films 3a and 3b, and both sides thereof are heat sealed and ultrasonic sealed. The side seals 5a and 5b are joined by, for example. Further, the upper left and right sides of the upper portion 3 are closed by upper seals 6a and 6b, and a spout forming portion 11 that opens the spout 10 protrudes from an upper central portion. In the figure, the portion filled with dots represents a bonded area.

  The spout forming portion 11 is formed by joining the peripheral portions of the overlapping front and back films. More specifically, one body film 3b of the front and back body films 3a and 3b protrudes to be one of the front and back films forming the spout forming portion 11. The other body film 3a is the base of the spout forming portion 11 and is joined to the thin film 2 whose film thickness is thinner than the body films 3a and 3b, and this thin film 2 forms the spout forming portion 11. It is the other film of the front and back films. And these films 2 and 3b are joined by the upper end part of the spout formation part 11, the upper end part seal | sticker 12 is formed, and it joins by both sides and the side part seals 13a and 13b are formed.

  The upper end seal 12 of the spout forming portion 11 has a knob shape protruding in the width direction from the side seals 13a and 13b. In addition, a notch 14 is formed at the lower end of the upper end seal 12, and a tear guide line 15 is formed on the extension line of the notch 14 by laser processing, half-cut, etc. that facilitates opening of the spout 10. Instead of the notches 14 and the tear guide lines 15, guide lines for opening the spout 10 with scissors or the like may be printed.

  On the other hand, the bottom 4 of the refilling pouch 100A is provided with a gusset 9 by forming a ship bottom seal 8 by sandwiching a folded bottom film between the front and back trunk films 3a and 3b.

  The front and back body films 3a and 3b that form the body part 3 or the spout forming part 11 of the refilling pouch 100A, the thin film 2 that forms the spout forming part 11, and the bottom film include linear low density polyethylene Sealant resin layer such as resin layer (L-LDPE), stretched nylon resin layer, high density polyethylene (HDPE), polypropylene (PP), polyethylene terephthalate (PET), resin layer such as ethylene vinyl alcohol (EVOH), etc. Depending on the case, a laminated film laminated with a metal barrier layer such as aluminum vapor-deposited PET or aluminum foil, a printing layer, or the like can be used.

  With regard to these film thicknesses, in this embodiment, the thin film 2 is made thinner than the body films 3a and 3b so that the spout 10 can be easily opened when the contents are poured out from the spout 10. For example, the film thickness of the thin film 2 is preferably 40 to 90 μm, and the film thickness of the body films 3a and 3b is preferably 90 to 150 μm. By setting the film thickness of the thin film 2 to 40 to 90 μm, the thin film 2 can be bent at the spout 10 at the time of pouring and the spout 10 can be opened widely while ensuring the sealing property of the film 2. . Further, by setting the film thickness of the body films 3a and 3b to 90 to 150 μm, while ensuring the sealing performance of the body films 3a and 3b, unnecessary folding and wrinkles occur when the refilling pouch 100A is erected. It does not occur and the appearance of the pouch can be improved. In addition, as the thin film 2 and the trunk | drum films 3a and 3b, what has the same layer structure and differs in film thickness with the thickness of a sealant resin layer can be used.

  Moreover, it is preferable that the difference in film thickness of the trunk | drum films 3a and 3b and the thin film 2 shall be 30-60 micrometers so that the spout 10 may open easily with the liquid pressure of the content at the time of pouring.

  As a manufacturing method of the refilling pouch 100A, for example, as shown in FIG. 3A, first, the body film 3a and the thin film 2 are joined by heat sealing, ultrasonic sealing, etc., and then as shown in FIG. 3B. The bottom film 4a folded in half is sandwiched between the bottom film 3a to which the thin film 2 is joined and the other body film 3b, as shown in FIGS. 1A and 1B. Seals 5a and 5b, a ship bottom seal 8 and upper seals 6a and 6b are formed. Further, the side seals 13a and 13b and the upper end seal 12 are formed also in the spout forming portion 11.

  Here, as a method of filling the refilling pouch 100A with the contents, for example, a part of the upper seals 6a and 6b is unsealed to form the refilling pouch 100A, the contents are filled, and then the unsealed Seal the part. Alternatively, a part of the side seals 5a and 5b is put in an unsealed state, and the contents are filled there from and the unsealed portion is sealed.

  When the contents are to be poured out from the refilling pouch 100A, first, the spout forming part 11 is torn from the notch 14, the upper end seal 12 is cut off as shown in FIG. 2A, and the spout 10 is opened. In the spout 10 thus opened, the thin film 2 and the body film 3b are closely overlapped with each other, so that the opening area of the spout 10 is small. Next, as shown in FIG. 2B, the spout 10 of the refilling pouch 100 </ b> A is applied to the mouth 31 of the main container 30, and the contents are poured out. Since the thin film 2 is easier to bend than the body film 3b, the spout 10 is opened to the thin film 2 side by the liquid pressure of the contents at the time of pouring. Therefore, the spout 10 is not blocked by the contents. Further, when the contents are poured out, the spout 10 may be inserted into the mouth 31 of the main container 30 as shown in FIG. 2C. Thereby, without spilling the contents outside the main container 30, the contents can be poured out at a large flow rate, and the refilling operation can be completed quickly.

  The present invention can take various forms. For example, in the above-described refilling pouch 100 </ b> A, the spout forming portion 11 may be protruded from the left end portion or the right end portion of the upper end portion of the trunk portion 3 instead of the central portion of the upper end portion of the trunk portion 3.

  Further, in the refilling pouch 100A described above, without using the thin film 2, the entire body film 3a is made the thickness of the thin film 2, and the spout forming part 11 is formed on the front and back body films having different film thicknesses. You may form in the protrusion part of 3a, 3b.

  Further, when the film thicknesses of the front and back body films 3a and 3b of the refilling pouch 100A are made different as described above, as shown in FIG. It is good also as the wide pouch 101A which made it easy to use by folding the pouch vertically by the folding line 16 from the spout formation part 11 to the bottom part. That is, the spout forming portion 11 of the wide pouch 101A itself uses different film thicknesses as the body films 3a and 3b on the front and back sides without using the thin film 2 in the refilling pouch 100A. Although it has the same configuration as the above, it is formed wide so that it can be easily folded in half vertically. By forming the refilling pouch wide and folding the contents vertically into two, the spout 10 can be opened widely as will be described later.

  As shown in FIG. 5, the refilling pouch according to the present invention is formed by folding the wide pouch 101A along the folding line 16 (FIG. 4) with the body film 3a having the smaller film thickness on the inside, thereby overlapping each other. Alternatively, it may be a two-fold pouch 102A in which part or all of the side seals 5a and 5b of the trunk portion are joined. Since the vertically bi-folded state is maintained by joining the side seals 5a and 5b, the bi-folded pouch 102A can easily stand upright without the upper part being swung, and the standing state is stabilized. Further, wrinkles on the outer body film 3b are prevented. Accordingly, the appearance is excellent. Further, since the side seals 5a and 5b are located on one side of the body part 3 folded in half, the side seals 5a and 5b do not hit the hand when the body part 3 is held by hand, so that it is easy to hold. .

  Here, the fold line 16 indicates the position of the fold, and it does not necessarily have to be a crease line. However, in order to make the bifold pouch 102A stand up stably as shown in FIG. It is preferable to form a line.

  Moreover, it is preferable that the joining location of the side seals 5a and 5b of the trunk portion 3 is at least the upper end portion 5x of the side seals 5a and 5b. Thereby, when the contents are poured out from the spout 10, the hydraulic pressure is concentrated in the vicinity of the spout 10, and the inner body film 3 a is easily opened at the spout 10.

  Moreover, as a joining method of the side seals 5a and 5b of the trunk portion 3, an adhesive may be used, and the sealant resin layer of the laminated film described above is exposed at the joint portion between the side seals 5a and 5b. Alternatively, they may be joined by overlapping and heat-sealing. Preferably, it is formed by heat sealing from the viewpoint of ease of production.

  In addition, it is preferable not to join the side seals 13a and 13b of the spout forming portion 11 so that the inner body film 3a can be easily opened when the contents are poured out from the spout 10.

  On the other hand, the two-fold pouch 102A of FIG. 5 has a gusset 9 similar to the standing pouch at the bottom half. As a result, the double-folded pouch 102A has a cylindrical shape as a whole, and the standing shape is stabilized.

  When the contents are refilled into the main container from the folded pouch 102A, first, the spout formation part 11 is torn along the tear guide line 15 from the notch 14, and the spout 10 is opened as shown in FIG. The opened spout 10 has a V-shape. Therefore, as shown in FIG. 7A, the spout 10 can be easily applied to the mouth portion 31 of the main container 30.

  Next, the two-fold pouch 102A is tilted and the contents are poured out as shown by the arrows. As shown by the broken line in the figure, the spout 10 has an inner body film 3a and an outer body film 3b that are close to each other. The inner trunk film 3a is separated from the outer trunk film 3b, and the spout 10 opens widely. In particular, when the contents are poured out by squeezing out the pouch, the liquid pressure is more effectively applied to the spout 10, so that the spout 10 is prevented from being clogged with the contents even when the content is a high-viscosity liquid. Is done. Moreover, compared with the case where the thickness of the inner trunk | drum film 3a is made the same as the thickness of the outer trunk | drum film 3b, the amount of content to be dispensed per unit time increases.

  Furthermore, in this foldable pouch 102A, the spout 10 is formed wide, but the spout 10 is inserted into the mouth 31 of the main container 30 as shown in FIG. Can do. Thereby, without spilling the contents outside the main container 30, the contents can be poured out from the entire width of the wide spout 10 at a large flow rate, and the refilling operation can be completed quickly. In particular, when the width L1 (FIG. 4) of the spout forming portion 11 at the opening position of the spout 10 is about 1.5 to 2 times the opening diameter L2 (FIG. 7B) of the mouth 31 of the container 30, the vertical length In the folded state, the spout 10 has a maximum width that can be easily inserted into the mouth 31 of the container 30. Therefore, the refilling operation can be completed more quickly.

  The refilling pouch of the present invention can take various modes. For example, like the wide pouch 101B shown in FIG. 8, gussets 9 similar to the standing pouch may be formed in the left and right regions of the bottom portion 4 that is divided into two by vertical folding. The refilling pouch formed from the wide pouch 101B also has a stable standing state and prevents the spout from being blocked when the contents are poured out.

  Moreover, like the wide pouch 101C shown in FIG. 9, the bottom part 4 may be made into a flat bag shape without a gusset, and it may be folded vertically and formed into a two-fold pouch.

  Like the wide pouch 101D shown in FIG. 10, you may provide the seal | sticker part 17 which sealed the front and back trunk | drum films 3a and 3b along the fold line 16 which folds vertically two. Thereby, since the movement range of the contents in the pouch is narrowed, the contents are likely to concentrate on the spout 10 when the contents are refilled, and the spout 10 is more easily spread.

  As described above, the refilling pouch according to the present invention includes both a mode in which the refill pouch is used without being folded vertically and a mode in which the pouch is used in a vertically folded state. Moreover, the aspect mentioned above regarding these refilling pouches can be combined variously.

  The refill bag of the present invention is useful as a refill container for liquids such as various liquid detergents, shampoos, liquid cosmetics such as conditioners.

2 Thin film 3 Body 3a, 3b Body film 4 Bottom 4a Bottom film 5a, 5b Side seal 5x Top end of side seal 6a, 6b Top seal 7 Bottom seal 8 Ship bottom seal 9 Machi 10 Outlet 11 Outlet formation Part 12 Upper end seal 13a, 13b Side seal 14 Notch 15 Tear guide line 16 Fold line 17 Seal part 30 Main container 31 Mouth part 100A Refilling pouch 101A, 101B, 101C, 101D Wide pouch 102A Two-fold pouch

Claims (8)

  The body part is formed of a front and back body film, and has side seals bonded on both sides thereof, and a refilling pouch in which a spout forming part where a spout opens is projected from the body part, A refill pouch in which the spout forming portion is formed by joining the peripheral portions of the front and back films, and one film thickness of the front and back films of the spout forming portion is thinner than the other film thickness.   2. The refill for claim 1, wherein one of the front and back sides of the spout forming part is formed of a protruding part of the body film, and the other is formed of a film thinner than the body film bonded to the body film. Pouch.   The refillable pouch according to claim 1, wherein the front and back body film have different thicknesses, and the front and back film of the spout forming part is formed by protruding portions of the front and back body film.   The refillable pouch according to any one of claims 1 to 3, wherein one of the front and back films forming the spout forming portion has a film thickness of 40 to 90 µm and the other film thickness of 90 to 150 µm.   The refill pouch according to any one of claims 1 to 4, wherein the difference in film thickness between the front and back films forming the spout forming part is 30 to 60 µm.   It has a spout forming part in the upper center part of the body part, with the thin film on the inside of the front and back films of the spout forming part inside, it is folded in half vertically from the spout forming part to the bottom, and overlapped by vertical half folds The refillable pouch according to any one of claims 1 to 5, wherein the side seals of the body portion are joined together.   The refilling pouch according to claim 6, wherein a gusset is formed by a bottom film on one of the bottoms divided into two by vertical folding.   The refilling pouch according to claim 6, wherein a gusset is formed by a bottom film on each of the bottom parts divided into two by vertical folding.

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