JP2013067418A - Refill container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To propose a refill container which can be manufactured in an ordinary bag-making line, can secure a pouring nozzle having an extremely large cross-section of a spout, resulting in being applicable to contents with high viscosity and moreover can be filled with a normal filling device.SOLUTION: In the refill container, one sheet of laminate comprising a substrate and a sealant layer is folded to form a folding part 4, a body surface laminate 2 and a body rear surface laminate 3, a circumference is sealed, a front half part of the folding part 4, together with the body surface laminate 2, the body rear surface laminate 3 and a pouring nozzle seal part 12, forms the pouring nozzle 13 for pouring out the contents, a rear half part of the folding part 4 is cut open to form an opening part c for filling the contents, and the body surface laminate 2 and the body rear surface laminate 3 which form the pouring nozzle 13 are folded and formed in parallel to a ridge line of the folding part 4 such that a surface side folding part 10 and a rear surface side folding part 11 are opposed to each other.

Description

  The present invention relates to a refill container formed of a flexible packaging material for storing a refill content for refilling a bottle container or the like, and particularly includes a spout for facilitating pouring of the refill content. Relates to a refill container.

  In recent years, refill products that store liquid or granular products such as shampoos and detergents as contents in pouches and refill them into separate containers at the time of use are increasing.

  As an existing pouch storing refill contents, there is a pouch in which two flexible synthetic resin film sheets are opposed to each other, and an open portion around the sheet is heat-sealed to form a seal portion. Such a pouch often has a configuration in which a spout for contents is arranged near the corner of the upper seal portion or in the center of the upper portion.

  In such an existing pouch, a spout is formed at a place where the front and back film sheets are sealed in a flat shape. The spout formed in such a seal portion has a surface where the opening portion is likely to close and the contents are difficult to pour, especially when the width and diameter of the spout are narrow and the shape is long. There was a problem that was easy to do.

  The spout of the flexible packaging bag described in Patent Document 1 is made in order to solve such a problem that the spout is likely to be blocked, and the upper side is obtained by folding one laminated resin film in half. In order to prevent clogging of the spout and to increase the cross-sectional area of the spout.

  According to the spout of the soft packaging bag described in Patent Document 1, compared with the conventional spout where the upper and lower ends of the spout are formed by the seal portion, the blocking prevention effect and the spout speed are equivalent. Although it was improved to some extent, it was still not sufficient for highly viscous contents.

  The pouch with a gusset (possibly misuse of gusset) described in Patent Document 2 has a gusset folding structure for the pouring nozzle portion, thereby greatly expanding the cross-sectional area of the pouring nozzle portion. Is intended.

  The flexible bags described in Patent Documents 3 and 4 are both flexible by forming a folding part on the top side of the bag so that the spout is opened by the elastic force of the folding part when opened. It is a sex bag.

  The flexible bags described in Patent Documents 3 and 4 are designed so that the spout is opened at the time of pouring, thereby preventing the sheet from adhering and allowing the liquid of the contents to flow out without leaving a single drop. It is a thing.

JP 2008-18991 JP 2010-228786 A JP-A-4-15956 JP-A-4-215957

  The pouch with a gusset pour spout described in Patent Document 2 is another sheet that constitutes the gusset portion of the pour spout, in addition to the front and back materials and the bottom tape that are necessary for manufacturing a normal standing pouch. A film is required, and an unwinding device for unwinding this film must be prepared separately. For this reason, there is a problem in that it cannot be produced in a normal standing pouch bag making line. In addition, the structure in which the pouring nozzle portion is formed by two planar top seal portions still includes the problem that the films constituting the pouring nozzle portion adhere to each other and the opening is blocked. In particular, this problem sometimes occurred at the final stage of extraction.

  Since the flexible bag described in Patent Documents 3 and 4 is provided with a folding portion over the entire length of the top side, the lower portion of the dispensing nozzle is provided in providing an opening for filling the contents. Therefore, it is necessary to leave the recess in an unsealed state as an opening for filling. For this reason, there is a problem in that it cannot be applied to a normal filling machine in which a filling nozzle is inserted from above the bag and a very special filling device is not used.

  The problem to be solved by the present invention is that a pouring nozzle having a very large pouring outlet cross-sectional area can be manufactured in a normal bag making line without using special plastic parts as the pouring nozzle. Therefore, the present invention proposes a refill container that can be applied to a highly viscous content and can be filled with a normal filling device.

  As 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 folded at the top, A folded portion, a body surface laminate, and a body back laminate are formed, and the other laminate is folded with the sealant layer outside to form a bottom tape, between the body surface laminate and the body back laminate. In the refill container having a standing pouch shape that is inserted and sealed at the periphery, the folded portion is a front side folded portion and a rear surface, wherein the main body surface laminate and the main body back laminate are folded with the sealant layer inside. The side folds are formed to face each other so that the cross-section is M-shaped, and the front half of the folds is formed of the main body surface laminate, the main body back laminate, and the dispensing nozzle seal portion. Both form a pouring nozzle for pouring out the contents, the tip of the pouring nozzle is sealed by the pouring nozzle tip seal part, and forms a pouring outlet by cutting along the planned opening line And the latter half part of the said bending part was cut open and formed the opening part for content filling, It is a refill container characterized by the above-mentioned.

  Since the refill container according to the present invention is provided with a pouring nozzle formed by folding a single laminate into an M-shaped cross section, the pouring nozzle is folded flat when the spout is unopened. However, when the spout is opened, the spout nozzle expands and expands greatly. For this reason, even if it is a high-viscosity content, quick extraction can be performed.

  The invention according to claim 2 is characterized in that the scheduled opening line is a half-cut line provided on an outer surface of a laminate selected from one or more of a main body surface laminate and a main body back laminate. The refill container according to claim 1.

  The invention according to claim 3 is characterized in that embossing is performed on a peripheral portion of the pouring nozzle of a laminate selected from one or more of the main body surface laminate and the main body back laminate. A refill container according to claim 1 or 2.

  The refill container according to the present invention bends one laminated body to form a folded portion, a main body surface laminated body, and a main body rear surface laminated body, and the first half of the bent portion has a main body surface laminated body and a main body rear surface laminated body. Since the pouring nozzle for pouring the contents is formed together with the pouring nozzle seal part, there is no seal part on the top side of the pouring nozzle, and the bent part is always opened by the elasticity of the laminate. Therefore, the flow path is difficult to block at the time of pouring.

  The main body front surface laminate and the main body back surface laminate, which form the dispensing nozzle, are formed by folding so that the front-side folded portion and the back-side folded portion are opposed to each other to form an M-shaped cross section. As a result, at the time of pouring, the folding portion is unfolded to open the pouring nozzle, and a flow passage having a large cross-sectional area is formed. For this reason, even a highly viscous content can be poured out smoothly.

  Furthermore, since the latter half of the bent portion is cut open to form the content filling opening, the content can be easily filled with a normal filling device.

  When the planned opening line is a half-cut line provided on the outer surface of the laminate selected from one or more of the main body surface laminate and the main body back laminate, the opening operation is facilitated.

  In addition, when embossing is performed on the periphery of the pouring nozzle of a laminate selected from one or more of a main body front surface laminate and a main body back surface laminate, the main body front surface laminate and the main body back surface laminate adhere to each other. Since it becomes difficult, the outflow at the time of pouring the contents becomes smooth, and the liquid residue due to adhesion can be prevented particularly at the final stage of the pouring.

FIG. 1 is a schematic view showing an embodiment of a refill container according to the present invention. FIG. 2A is a schematic cross-sectional view showing the XX ′ cross section of the dispensing nozzle portion of the refill container shown in FIG. 1, and FIG. 2B is a state where the dispensing nozzle portion is expanded. It is the cross-sectional schematic diagram which showed. FIG. 3 is a schematic view showing another embodiment of the refill container according to the present invention.

Hereinafter, based on the drawings, the refill container according to the present invention will be described in detail.
FIG. 1 is a schematic view showing an embodiment of a refill container according to the present invention. FIG. 2A is a schematic cross-sectional view showing the XX ′ cross section of the dispensing nozzle portion of the refill container shown in FIG. 1, and FIG. 2B is a state where the dispensing nozzle portion is expanded. It is the cross-sectional schematic diagram which showed.

  A refill container (1) according to the present invention is a refill container comprising a laminate having at least a base material and a sealant layer. The refill container (1) is formed by bending a single laminate so that a folded portion (4) and a main body surface laminate are obtained. (2) and main body backside laminate (3) are formed, and the other laminate is folded with the sealant layer outside to form a bottom tape (5). It is a refill container having a standing pouch shape that is inserted between the bodies (3) and sealed at the periphery.

  The first half of the bent portion (4) includes a main body surface laminate (2), a main body back surface laminate (3), and a pouring nozzle seal portion (12), and a pouring nozzle (15) for pouring out the contents. Forming.

  The second half of the bent portion (4) is cut open to form a content filling opening (c), and the tip of the pouring nozzle (15) is sealed by the pouring nozzle tip seal portion (13). The spout (17) is formed by cutting along the planned opening line (14).

  In the refill container (1) according to the present invention, as shown in FIG. 2 (A), the main body surface laminate (2) and the main body back laminate (3) are each provided with a sealant layer as the bent portion (4). The front-side folded part (10) and the back-side folded part (11) folded inward are formed so as to face each other so that the cross section is M-shaped.

  In the embodiment shown in FIG. 1, the main body front surface laminate (2) and the main body back surface laminate (3) are folded inward in the front surface side folded portion (10) and the back surface side folded portion (11). As a result, the front-side folded part (10) and the back-side folded part (11) are arranged so as to have opposite M-shaped cross sections. In FIG. 2 (A), the front side folding part (10) and the back side folding part (11) are arranged so as to be symmetrical with respect to the center line of both, but they are not necessarily exactly symmetrical. There is no need.

  Since the folding portion is sandwiched and fixed between the pouring nozzle tip seal portion (13) and the point seal portion (6), it does not expand before opening, but the tip of the pouring nozzle (15). Is cut along the planned opening line (14), and when the content starts to be poured, as shown in FIG. Form. As a result, it is possible to quickly dispense, and even a highly viscous content can be smoothly dispensed.

  The content filling opening (c) is formed by cutting open the latter half of the bent portion (4). Usually, in an actual production line, the bent portion (4) is formed by continuously feeding a single laminated body wound in a coil shape and continuously bending it. Since the front side folding part (10) and the back side folding part (11) are also continuously formed in the same manner, in order to form the content filling opening (c), at the lowermost part of the folding part (4) It is necessary to cut from a certain ridge line portion to a position directly below the front surface side folded portion (10) or the back surface side folded portion (11). For this reason, the filling opening (c) is positioned lower than the bent portion (4).

  The planned opening line (14) in front of the dispensing nozzle tip seal portion (13) is a virtual line indicating the opening position, but the main body surface laminate (2) and the main body back surface laminate (3) By using the half-cut line (a) provided on the outer surface of both or any one of the laminates, smoother opening is possible. As a method of forming a half cut line, there are a method using a blade and a method using a laser. The half cut line is not limited to one, and a plurality of lines may be provided in parallel.

  An opening knob (16) is provided below the dispensing nozzle tip seal portion (13) to facilitate the opening operation. Further, by providing an opening notch (b) at the lower part of the planned opening line (14), it becomes easier to trigger opening. The opening notch (b) may be V-shaped, U-shaped, or an I-shaped notch that is a simple cut.

  FIG. 3 is a schematic view showing another embodiment of the refill container according to the present invention. In the embodiment shown in FIG. 3, embossing is performed on the peripheral portion of the pouring nozzle (15) of both or either of the main body surface laminate (2) and the main body back laminate (3). It is characterized by applying (d). By providing the embossing (d), it is possible to prevent the main body surface laminate (2) and the main body back laminate (3) from adhering to each other due to the surface tension of the contents, particularly in the final stage of pouring. It has the effect of allowing all items to be poured out.

The embossing (d) may be provided before the main body surface laminated body (2) and the main body back surface laminated body (3) are formed by bending one laminated body or after the folding. You may form two sheets at a time after folding. The shape may be convex outward or convex inward. Moreover, you may provide in any one of a main body surface laminated body (2) and a main body back surface laminated body (3), and you may provide in both. There are no particular restrictions on the shape, but attention should be paid to the depth, because if the depth is too deep, the strength of the laminate is impaired.

  As the most preferable combination of embossing (d), convex embossing on the inside is provided on either the front or back, or on both the front and back.

  As a method for forming embossing, there are a vacuum forming method, a vacuum / pressure forming method, a pressing method using male and female embossed plates, and the like.

  As a structure of the laminated body used for the refill container which concerns on this invention, the laminated body normally used for a flexible packaging bag can be used. As the substrate layer, 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 base material layer 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. It is also effective to use paper from the viewpoint of environmental considerations. However, when paper is used, the depth of embossing (d) is limited.

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

  Specific examples of the structure of the laminate include a film composed of PET / printing layer / adhesive layer / stretched polyamide resin film (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. As an alternative to the aluminum foil, a transparent gas barrier film using an inorganic oxide vapor deposition layer may be used.

Next, the manufacturing method of the refill container which concerns on this invention is demonstrated.
In order to manufacture the refill container (1) shown in FIG. 1, the front side folding part (10) and the back side folding part (11) are approximately double the length corresponding to the height of the container. A laminated body slit to a width to which the necessary length is added is prepared. The laminate body is continuously supplied with the sealant layer surface facing inward, and is bent using a triangular plate to form the body surface laminate (2) and the body back laminate (3), and the body surface laminate (2) and A front surface side folding part (10) and a back surface side folding part (11) are formed from the main body back surface laminate (3). Separately prepared bottom tape (5) is folded in two with the sealant layer on the outside, and the necessary bottom punch hole processing (9) is applied, then inserted between the main body front and back side laminate, and the side seal part (7) A bottom seal portion (8), a dispensing nozzle seal portion (12), a dispensing nozzle tip seal portion (13), and a point seal portion (6) are formed.

  Individual containers formed continuously are cut separately, and further cut into a predetermined outer shape to remove unnecessary portions. At this time, the second half of the bent portion (4) after the point seal (6) is cut and removed to form the content filling opening (c).

  As described above, the refill container according to the present invention can be implemented simply by adding a folding device for forming the front and back folding parts to a normal standing pouch molding line, and requires extensive modification. And not.

DESCRIPTION OF SYMBOLS 1 ... Refill container 2 ... Main body surface laminated body 3 ... Main body back surface laminated body 4 ... Bending part 5 ... Bottom tape 6 ... Point seal part 7 ... Side seal part 8 ... Bottom seal part 9 ... Bottom punch hole processing 10 ... Front side folding part 11 ... Back side folding part 12 ... Discharge nozzle seal part 13 ... Discharge nozzle tip seal part 14 ... Scheduled opening 15 ... Dispensing nozzle 16 ... Unsealing knob 17 ... Dispensing flow path a ... Half-cut line b ... Opening notch c ... Opening for filling contents d ... Embossing

Claims (3)

  A refill container comprising a laminate having at least a base material and a sealant layer, wherein one laminate is folded at the top to form a folded portion, a body surface laminate, and a body back laminate, and another one In the refill container having a standing pouch shape in which the laminate is bent with the sealant layer outside to form a bottom tape, inserted between the main body surface laminate and the main body back laminate, and the periphery is sealed. The bent portion is formed by facing the front surface side folded body and the back surface side folded body of the main body front surface laminate and the main body back surface laminate, with the sealant layer inside, so that the cross section becomes an M shape. And the first half of the bent portion forms a pouring nozzle for pouring the contents together with the main body surface laminate, the main body back laminate and the pouring nozzle seal portion, and the pouring nozzle The tip is sealed by a dispensing nozzle tip seal part, and forms a spout by cutting along a planned opening line. The latter half of the bent part is cut open to open the contents filling opening. A refill container, characterized in that is formed.   The refill container according to claim 1, wherein the planned opening line is a half-cut line provided on an outer surface of a laminate selected from one or more of a main body surface laminate and a main body back laminate. .   The refill container according to claim 1 or 2, wherein an embossing is performed on a peripheral portion of the pouring nozzle of a laminate selected from one or more of the main body front surface laminate and the main body back surface laminate. .

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