JP2012180112A - Refilling container - Google Patents

Abstract

A problem to be solved by the present invention is that a spout can be easily and reliably formed without using a separate member such as a plug, and the refilling operation can be easily and quickly performed during use. We propose a refillable container that can be made reliably.
A laminate having at least a base material and a sealant layer is folded with the sealant layer on the inside to form a bent portion, a body surface laminate, and a body back laminate, and the periphery is sealed. The bent portion forms a pouring nozzle for pouring out the contents together with the main body surface laminate, the main body back surface laminate, and the pouring nozzle seal portion, and the tip of the pouring nozzle is formed by the pouring nozzle tip seal portion. It is sealed and forms a spout by cutting along the planned opening line, and a plurality of valley fold lines are provided on the ridge line of the bent portion in a direction perpendicular to the ridge line. The refill container is characterized in that a diamond-shaped mountain fold line is provided so as to surround.
[Selection] Figure 1

Description

  The present invention relates to a refill container for storing toiletries such as liquid detergents, shampoos and rinses, foods such as edible oils, seasonings, and instant coffee.

  Toiletries such as liquid detergents and shampoos, and foods such as edible oils, seasonings, and instant coffee are each stored in dedicated containers that are easy to use. The dedicated container has a solid structure and is therefore expensive, so a product with a refill container that refills only the contents is sold separately so that it can be used repeatedly when the contents are gone. There are many.

  For example, liquid detergent containers need to be weighed and taken out each time they are used, so a rigid plastic container with a nozzle at the spout is repeatedly used so that it can be easily poured into a lightweight cup. Used as a container. In contrast to this container, as a refilling container for replenishing the contents, a flexible container made of a flexible packaging film, a container in which a spout is formed, or a container attached with a stopper is generally used. ing.

  Since the rigid container to be used repeatedly is designed to be easily poured out, considering the convenience in the refilling operation of replenishing the contents from the refilling container to the container to be used repeatedly, Not necessarily.

  On the other hand, the refill container is not always in consideration of the convenience in the refilling operation, because the emphasis is on manufacturing inexpensively.

  The refill container can be opened using the nozzle provided in the container to be used repeatedly, and since the refill container is self-supporting during refilling, it does not need to be held by hand. Containers have been proposed. This hand-held refillable container is a refillable container including a coupling member that is detachably connected to an opening of a container that is repeatedly used and a container sealing member that seals the refillable container body (see Patent Document 1). .

  Since the refill container described in Patent Document 1 uses two members, ie, a coupling member and a container sealing member, in the cap portion in order to couple the reusable container and the refill container, the cost of the container is high. It must be a thing. In addition, since the refill container is used by screwing it into the opening of the container to be used repeatedly, the connection between the two is reliable, but on the other hand, it is not only cumbersome to operate but also disadvantageous in terms of the cost of the plug. There was a drawback of being.

  From the viewpoint of cost, a packaging bag in which the peripheral edges of two front and back packaging films as shown in FIG. 7 are sealed is advantageous. This refill packaging bag can be provided with a spout having an arbitrary width corresponding to the caliber of the container. However, when the spout is formed by sealing the edges of the two front and back films, When the product is poured out, the opening is pulled at both ends sealed, the front and back films are in a pseudo-adherent state, and the spout is clogged, and the spout is likely to bend in the lateral direction. There is a problem that the spout is detached from a container that is repeatedly used. Moreover, since the opening width of the spout is a width excluding the seal portions on both sides of the spout, there is a problem that a sufficient opening width cannot be obtained and a sufficient amount of pouring cannot be secured.

  In order to solve the problem that the spout is blocked or bent, a part different from the film is inserted into the spout (see Patent Document 2), or the film near the spout is inflated. Many proposals have been made to secure an opening area by adopting a three-dimensional shape (see Patent Document 3).

  However, these packaging bags have the problem that the process of attaching separate members and the process of applying deep embossing to the film increase, and that the packaging bags cannot be neatly stacked in the packaging bag supply section at the time of filling. The problem and the basic problem that the spout formed by sealing the two front and back films has a sealing part at both ends, so the opening width becomes narrow accordingly and a sufficient opening area cannot be secured. was there. If a sufficient opening area cannot be secured, the time required for dispensing at the time of refilling will become long.

  In order to solve this problem, a packaging bag has been proposed in which a film constituting the packaging bag is bent to form one side of the spout, and the sealing portion of the spout is only one side (see Patent Document 4).

JP 2004-99082 A Japanese Patent Laid-Open No. 5-132069 Patent No. 4110940 JP 2008-18991

  In the case of a packaging bag made up of a film in which one side of the spout is folded, as shown in Patent Document 4 to be filed by the applicant, there is a problem that the spout is blocked and the opening area of the spout is The shortage problem has been solved to some extent, but the time required for pouring and the ease of pouring were not sufficient. In other words, when the diameter of the spout is small, or when the film is weak due to the film material or thickness, the spout does not open even if the spout is opened. There was a problem that it could not be obtained.

  The problem to be solved by the present invention is that the spout can be easily and reliably formed without using a separate member such as a plug, and the refilling operation can be performed easily, quickly and reliably at the time of use. A refill container is proposed.

As a means for solving the above problems, the invention according to claim 1 is a refill container comprising a laminate having at least a base material and a sealant layer, wherein one laminate is placed inside with the sealant layer inside. The bent portion, the main body surface laminate, and the main body back laminate are formed and the periphery is sealed, and the bent portion includes the main body surface laminate, the main body back laminate, and the dispensing nozzle seal portion. A pouring nozzle for pouring out objects is formed, and the tip of the pouring nozzle is sealed by a pouring nozzle tip seal part, and a pouring port is formed by cutting along the planned opening line. The stack of bent portions forming the pouring nozzle is provided with a plurality of valley fold lines on the ridge line of the fold portion in a direction perpendicular to the ridge lines, and the rhombic peaks so as to surround the valley fold lines. Folding line A refill container, characterized in that provided.

  Further, in the invention described in claim 2, a laminate having at least a base material and a sealant layer is bent with the sealant layer facing outward to form a bottom tape, and between the main body surface laminate and the main body back laminate. The refill container according to claim 1, wherein the refill container has a standing pouch shape that is inserted into the container and sealed at the periphery.

  In the invention according to claim 3, the valley fold line provided in the bent portion and the rhombic mountain fold line surrounding the fold line extend over the main body surface laminate and the main body back surface laminate around the ridge line of the bent portion. The refill container according to claim 1, wherein a plurality of rows are formed by sharing adjacent rhombic mountain fold lines.

  The invention according to claim 4 is characterized in that the scheduled opening line is a half-cut line provided on the outer surface of the main body surface laminate and / or the main body back laminate. It is a refill container of any one of Claims.

  The invention according to claim 5 is the refill container according to any one of claims 1 to 4, wherein a part of the bent portion is cut open to form a content filling opening. is there.

  The refill container according to the present invention is formed by bending a single laminate having at least a base material and a sealant layer with the sealant layer on the inside to form a bent portion, a main body surface laminate, and a main body back laminate. Because it is a refillable container that is sealed, it can be manufactured only from the laminate for flexible packaging, unlike plastic bottles and containers that use plastic spigots. Can do.

  In the refill container according to the present invention, one laminate is folded with the sealant layer on the inside to form a folded portion, and the folded portion includes the body surface laminate, the body back laminate, and the note. Since the dispensing nozzle for pouring out the contents was formed together with the dispensing nozzle seal part, the laminated body on the front and back surfaces is attached unlike the conventional dispensing nozzle formed by sealing the laminated body of the two front and back. The dispensing nozzle is not blocked, and a large-area dispensing outlet can be stably secured. As a result, a smooth and quick refilling operation can be performed.

  Further, the refill container according to the present invention is provided with a plurality of valley fold lines in a direction perpendicular to the ridgeline on the ridgeline of the foldline in the laminate of the foldline that forms the pouring nozzle. By providing the diamond-shaped mountain fold line so as to surround the fold line, the bent portion is further prevented from being crushed, the cross-sectional area of the pouring nozzle is increased, and the rigidity of the pouring nozzle is improved. As a result, the dispensing operability in the refilling operation has been greatly improved.

  Also, a laminate having at least a base material and a sealant layer is folded with the sealant layer outside to form a bottom tape, and inserted between the main body main body surface laminate and the main body main body back layer laminate to seal the periphery. In the case of a standing pouch shape as described above, it becomes possible to make a refill container with a large capacity having a self-supporting property, and the features of the present invention can be fully utilized.

  In addition, the valley fold line provided in the fold part and the rhombus mountain fold line that surrounds it share the adjacent rhombus fold line across the main body surface laminate and the main body back laminate centering on the ridge line of the fold part. When a plurality of rows are formed, the rigidity of the dispensing nozzle is further increased, and the dispensing operability is further improved.

  Further, when the planned opening line is a half-cut line provided on the outer surface of the main body surface laminate and / or the main body back surface laminate, accurate opening along the planned opening line can be easily performed.

  In addition, when a part of the bent portion is cut open and used as an opening for filling the contents, even if the container has a shape such that the other sealing portion cannot be used as the filling opening, The stable filling operation becomes possible.

FIG. 1 is a schematic view showing the most basic embodiment of a refill container according to the present invention. FIG. 2A is a schematic cross-sectional view showing a part of the X-X ′ cross section of FIG. 1. FIG.2 (b) is a cross-sectional schematic diagram of the spout after opening. FIG. 2C is an explanatory diagram of a valley fold line and a rhombus mountain fold line. FIG. 3 is a schematic view showing another embodiment of the refill container according to the present invention. FIG. 4 is a schematic view showing another embodiment of the refill container according to the present invention. FIG. 5 is a schematic view showing a comparative example of the refill container according to the present invention. FIG. 6 is a schematic view showing another comparative example of the refill container according to the present invention. FIG. 7 is a schematic view showing an example of a conventional refill container.

Hereinafter, the refill container according to the present invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic view showing the most basic embodiment of a refill container (1) according to the present invention. Moreover, Fig.2 (a) is a cross-sectional schematic diagram which showed a part of XX 'cross section of FIG. 1, FIG.2 (b) is a cross-sectional schematic diagram of the spout after opening. Moreover, FIG.2 (c) is explanatory drawing of a valley fold line and a rhombus mountain fold line, and explanatory drawing which showed the state seen from the top before folding the laminated body of the refill container shown in FIG. It is.

  A refill container (1) according to the present invention is a refill container comprising a laminate (10) having at least a base material (11) and a sealant layer (12), and the single laminate (10) is treated as a sealant. Folded with the layer (12) on the inside to form a bent portion (5), a main body surface laminate (2), and a main body back surface laminate (3), the periphery is sealed, and the bent portion (5) A pouring nozzle (32) for pouring out the contents is formed together with the main body surface laminate (2), the main body back laminate (3) and the pouring nozzle seal portion (24). ) Is sealed by a dispensing nozzle tip seal portion (25), and forms a spout (31) by cutting along a planned opening line (36). In the laminate of the bent part (5) to be formed, On the ridge line (6) of the bent portion, a plurality of valley fold lines (7) are provided in a direction perpendicular to the ridge line, and a rhombus mountain fold line (8) is formed so as to surround the valley fold line (7). It is provided. In the figure, the valley fold line is indicated by a dotted line, and the mountain fold line is indicated by a solid line.

  In the embodiment shown in FIG. 1, the upper part of the container is entirely the bent part (5), and the upper side is the ridge line (6) of the bent part. In order to fill the container with the contents, either the left or right side seal part 22 or the bottom seal part 23 is left unsealed to form a filling opening.

  The dispensing nozzle seal portion (24) defines the lower side of the dispensing nozzle (32), and the thickness and length of the dispensing nozzle (32) are determined by this shape and position. In the embodiment of FIG. 1, the lower side of the pouring nozzle has an inclination of about 30 ° with respect to the ridge line (6) of the bent portion. The specifications of the nozzle (32) are designed according to the shape of the container to be used repeatedly.

The dispensing nozzle seal portion (24) is provided with a curved opening knob forming cut line (35) to form an opening knob (34). The tip of the opening knob forming cut line (35) becomes a planned opening line (36), and can be opened along the planned opening line with the opening knob (34).

  The planned opening line (36) is a virtual line indicating the opening position, but in order to clarify the opening position, printing display or the like may be actually performed. The planned opening line (36) is preferably a half-cut line provided on the outer surface of the main body surface laminate (2) and / or the main body back laminate (3). By doing so, it becomes possible to easily form the spout (31) by tearing the portion of the planned opening line (36) by hand.

  For the half-cut line, a method of forming with a blade and a method of forming by laser processing are generally used, but the method by laser processing is preferable because a uniform and stable cut can be formed. As the type of laser, a carbon dioxide laser is more preferable. The planned opening line (36) does not have to be perpendicular to the ridge line (6) of the bent portion, and may be oblique as shown in FIGS.

  In order to manufacture the refill container (1) shown in FIG. 1, a valley fold line (7) is formed at a predetermined position of the laminate (10) slit to a width approximately twice the length corresponding to the height of the container. ) And rhombic mountain fold line (8), then the inner surface of the sealant layer is folded and faced at the top to form a main body surface laminate (2) and a main body back surface laminate (3). And after necessary sealing, punched out to make a container.

  As a method of forming the valley fold line (7) and the rhombic mountain fold line (8), the laminated body (10) is heated and then embossed by embossing between the cooled male mold and female mold. Although a processing method is common, a vacuum forming method or a vacuum / pressure forming method can also be adopted.

  If the length of the valley fold line (7) and the interval between them are too long or too short, the effect of opening the spout and the effect of increasing the rigidity of the dispensing nozzle (32) are reduced. In the explanatory view shown in FIG. 2C, the length (a) of the valley fold line (7) is 3 mm or more and 30 mm or less, and the interval (b) of the valley fold line (7) is 3 mm or more and 45 mm or less. Is desirable. The relationship between the length (a) of the valley fold line (7) and the interval (b) is preferably 1 ≦ b / a ≦ 15.

  As a laminated body (10) used for the refill container (1) which concerns on this invention, the laminated body normally used for a flexible packaging bag can be used. As the substrate (11), paper, metal foil or synthetic resin film consisting of one layer or several layers is used. For example, low density polyethylene resin (LDPE), high density polyethylene resin (HDPE), linear low density polyethylene resin (LLDPE), polypropylene resin (PP), polyolefin resin such as polyolefin elastomer, polyethylene terephthalate resin (PET), polyester resins such as polybutylene terephthalate resin (PBT), polyethylene naphthalate resin (PEN), cellulose resins such as cellophane and cellulose triacetate (TAC), polymethyl methacrylate (PMMA) resin, ethylene- Vinyl acetate copolymer resin (EVA), ionomer resin, polybutene resin, polyacrylonitrile resin, polyamide resin, polystyrene resin (PS), polyvinyl chloride resin (PVC), polyvinylidene chloride Resin (PVDC), polycarbonate resin (PC), fluorine-based resin, synthetic resin films and paper, such as urethane resin, a metal foil or the like alone or be used in combination. The substrate (11) includes a printing layer and an adhesive layer as necessary.

As the paper, high-quality paper, piece art paper, coated paper, cast coated paper, imitation paper, and the like can be used. When paper is used for the laminate, cracking may occur in the paper due to deep embossing, but in the refill container according to the present invention, the convex emboss and the concave emboss are constituted by valley fold lines and mountain fold lines. Therefore, a laminate using paper can be used stably. It is also effective to use paper from the viewpoint of environmental considerations.

  As the sealant layer (12), a polyolefin resin is generally used. Specifically, a low density polyethylene resin, a medium density polyethylene resin, a linear low density polyethylene resin, an ethylene / vinyl acetate copolymer, ethylene・ Ethylene resins such as α-olefin copolymers, polypropylene resins such as homopolypropylene resins, propylene / ethylene random copolymers, propylene / ethylene block copolymers, and propylene / α-olefin copolymers are used. . In addition, a multilayer film in which these resins are combined may be used.

  Specific examples of the structure of the laminate (10) include PET / printing layer / adhesive layer / stretched polyamide resin film (hereinafter abbreviated as ONY) / adhesive layer / LLDPE, ONY / adhesive Layer / LLDPE, ONY / adhesive layer / ONY / adhesive layer / LLDPE, paper / LDPE / aluminum foil / LDPE, paper / LDPE, and the like.

FIG. 3 is a schematic view showing another embodiment of the refill container (1) according to the present invention.
In this embodiment, a single laminate having at least a base material and a sealant layer is folded with the sealant layer outside to form a bottom tape (4), and a main body surface laminate (2) and a main body back laminate (3). ) To form a standing pouch having a peripheral edge sealed. In the case of such a shape, it is not appropriate to provide a filling opening for filling the contents in the side seal portion (22). Therefore, a part of the bent portion (5) is cut open to form a filling opening (41). It is as. Thus, when the opening part for filling exists in the top part of a container, there exists an advantage which becomes easy to perform filling operation of the contents.

  The standing pouch-shaped container can be easily made into a large-capacity container because the bottom tape (4) spreads out. Therefore, the feature that the pouring time in the refill container according to the present invention is short can be fully utilized.

  The bent portion (5) is formed by bending a single laminate at the top with the sealant layer inside, and the bent portion (5) includes the main body surface laminate (2) and the main body back laminate (3). ) And the pouring nozzle seal part (24), the pouring nozzle (32) which is the outflow path of the contents reaching the pouring port (31) is formed. In this way, particularly when the contents are liquid, when the contents are poured out, the contents smoothly flow through the linear outflow passage, so that quick dispensing is possible. This feature is more effective in this embodiment because of the large capacity of the container.

  In order to manufacture the refill container shown in FIG. 3, a valley fold line (7) and a diamond-shaped mountain fold are formed at predetermined positions of the laminated body slit into a width approximately twice the length corresponding to the height of the container. After forming the line (8), the sealant layer surface is turned inward and folded at the top so as to face each other to obtain a main body surface laminate (2) and a main body back surface laminate (3). The bottom tape (4) folded in half so that the surface of the sealant layer is on the outside is continuously supplied, and after necessary sealing is performed, it is punched out to form a container.

FIG. 4 is a schematic view showing another embodiment of the refill container (1) according to the present invention.
In this embodiment, the valley fold line (7) provided in the fold portion (5) and the rhombic mountain fold line (8) surrounding it are centered on the ridge line (6) of the fold portion (6). 5 rows are formed to share the adjacent rhombic mountain fold line (8) over 2) and the back surface laminate (3). Thus, if the arrangement of the valley fold line (7) and the diamond-shaped mountain fold line (8) surrounding the valley fold line (8) is a plurality of rows, it is compared with the embodiment of FIG. 1 and FIG. The rigidity of the dispensing nozzle (32) is further increased, and the dispensing operability is further improved.

Thus, the refill container according to the present invention can secure a large-area spout without using a special plastic spigot, and the size of this spout is: Since it can be designed freely according to the shape of the cap of the intended repeated use container, it is highly valuable as a dedicated refill container that can be quickly refilled.
Hereinafter, the refill container according to the present invention will be described more specifically with reference to examples.

As the main body surface laminate and the main body back laminate, a laminate having the following configuration was used. <Configuration of laminate>
PET film (Toray P60, 12 μm) / printing layer / adhesive layer (Toyo Morton TM272, 3 g / m ² (dry) / ONY (Unitika ONMB, 15 μm) / adhesive layer (same as above) / LLDPE (TUX-FCS manufactured by Tosero, 150 μm)
The laminated body which consists of the following structures was used as a bottom tape.
<Configuration of laminate>
ONY (ONM manufactured by Unitika, 25 μm) / LLDPE (same as above, 120 μm)

  A standing pouch having the shape shown in FIG. 4 was produced using the above laminate. As a filling opening, a part of the bent portion was cut to form a filling opening (41). The length of the valley fold line (7) is about 4 mm, the interval is about 10 mm, the length of one side of the rhombic mountain fold line (8) is about 6 mm, and the ridge line (6) of the bent part is centered as shown in the figure As a result, five rows were formed. The planned opening line that should be the spout at the tip of the spout nozzle was a half-cut line by laser processing.

The refill container thus obtained was filled with household liquid detergent, and the filling opening was heat-sealed to obtain a container with 350 ml of refill detergent.
<Comparative Example 1>

A refill container having the same shape was prepared using the same laminate as that used in Example 1, and similarly filled with household liquid detergent. However, as shown in FIG. 5, the dispensing nozzle portion was a blank product that was not subjected to any processing.
<Comparative example 2>

  A refill container having the same shape was prepared using the same laminate as that used in Example 1, and similarly filled with household liquid detergent. However, the pouring nozzle part had a shape provided with only a valley fold line (7) as shown in FIG.

  Three containers with refill detergents for each of Example 1, Comparative Example 1, and Comparative Example 2 were prepared, and a dispensing experiment was conducted with three monitors, and the time required for dispensing (pouring time) was measured. did. The results are shown in Table 1.

  In Comparative Example 1, the mouth of the spout did not open and there was a tendency to close. In Comparative Example 2, the extraction nozzle was bent along the valley fold line, so that a sufficient opening could not be obtained and it was difficult to insert into the bottle. In Example 1, when the bottle was opened, the spout opened in a cylindrical shape, a sufficient opening area was obtained, insertion into the bottle was easy, and the pour-out time was the shortest. Thus, the superiority of Example 1 having the shape of FIG. 4 was confirmed.

As described above, the refill container according to the present invention can be easily opened in the refilling operation of the contents into the bottle container to be used repeatedly, and can secure a sufficient opening area. Since the discharge nozzle has a cylindrical shape, it can be easily inserted into the bottle, the discharge in a stable state can be maintained until the end without closing the discharge nozzle, and the contents can be quickly discharged. Further, it does not require complicated processing, can be easily produced at low cost, and can be widely applied as a refill container for various products.

DESCRIPTION OF SYMBOLS 1 ... Refill container 2 ... Main body surface laminated body 3 ... Main body back surface laminated body 4 ... Bottom tape 5 ... Bending part 6 ... Ridge line 7 ... Valley fold line 8 ... Rhombus mountain fold line 10 ... Laminate 11 ... Base material 12 ... Sealant layer 21 ... Top seal part 22 ... Side seal part 23 ... Bottom seal part 24 ···· Nozzle nozzle seal portion 25 ··· Nozzle nozzle tip seal portion 31 ··· Outlet port 32 ··· Outlet nozzle 33 ··· Half-cut wire 34 ··· Opening knob 35 ··· Opening knob formation Cut line 36 ... Opening scheduled line 41 ... Contents filling opening a ... Valley fold line length b ... Valley fold line interval

Claims (5)

  A refill container comprising a laminate having at least a base material and a sealant layer, wherein one laminate is folded with the sealant layer inside to form a bent portion, a body surface laminate, and a body back laminate, The periphery is sealed, and the bent portion forms a pouring nozzle for pouring the contents together with the main body front surface laminate, the main body back surface laminate, and the pouring nozzle seal portion, and the tip of the pouring nozzle Is sealed by a discharge nozzle tip seal part, and forms a spout by cutting along a planned opening line. The stack of bent parts forming the discharge nozzle has a ridge line on the bent part. A refill container, wherein a plurality of valley fold lines are provided in a direction perpendicular to the ridge line, and a rhombus mountain fold line is provided so as to surround the valley fold line.   Standing comprising a laminate having at least a base material and a sealant layer, folded with the sealant layer on the outside to form a bottom tape, and inserted between the body surface laminate and body back layer laminate to seal the periphery. The refill container according to claim 1, wherein the refill container has a pouch shape.   The valley fold line provided in the bent portion and the rhombic mountain fold line surrounding the fold line share the adjacent rhombic mountain fold line across the main body surface laminate and the main body rear surface laminate around the ridge line of the bent portion. The refill container according to claim 1 or 2, wherein a plurality of rows are formed.   The refill container according to any one of claims 1 to 3, wherein the planned opening line is a half-cut line provided on an outer surface of the main body surface laminate and / or the main body back laminate.   The refill container according to any one of claims 1 to 4, wherein a part of the bent portion is cut open to form a content filling opening.

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