JP6136488B2 - Package and method for producing the same - Google Patents

Description

  The present invention relates to a package of a refill container containing toiletries such as liquid detergents, softeners, shampoos, rinses, seasonings, foods and the like.

  Liquid detergents, soft finishes, toiletries such as shampoos and rinses are 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. It is often done.

  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 dedicated 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.

  When refilling the contents from the refill container into the special container, open the spout of the refill container, insert the spout into the special container, invert the refill container, and let the contents flow down. The refill container is flexible and not self-supporting, so it must often be held with both hands until the end of the dispensing.

  If the contents are low in viscosity, such as bath detergent, it will be dispensed in a short time, so this is not a problem, but if the contents are high in viscosity, such as shampoo or rinse, the dispensing is complete. It took a very long time to complete and was inconvenient.

  Therefore, various attempts have been made to shorten the pouring time, but many of them have embossed the pouring port, or a separate pipe is attached to the pouring port to block the pouring port. It was something to prevent.

  The liquid storage container with a nozzle described in Patent Document 1 filed by the present applicant has a linear convex streak that bulges the central portion of the nozzle outward in a path from the tip of the nozzle toward the liquid storage portion. A concave streak is provided only on the lower nozzle portion of the convex streak from the tip of the nozzle toward the liquid storage portion.

  By taking such measures, the outflow speed at the initial stage of pouring is improved, so that the total time required for pouring is definitely shortened, but the container wall gets wet with the contents after the pouring and adheres. Therefore, there was no effect on the phenomenon that the dispensing speed was extremely slow.

Japanese Patent No. 4110940

In the liquid storage container with a nozzle described in Patent Document 1, since the convex streaks provided in the central part of the nozzle extend until reaching the liquid storage part, the walls of the container described above adhere to each other and the outflow speed is increased. Although it can be expected to improve the slowing problem to some extent, it was not enough.

  The problem to be solved by the present invention is to propose a refill container that can maintain a consistently high dispensing speed from the initial stage to the final stage of the refill using a flexible packaging material. is there.

As a means for solving the above-mentioned problems, the invention according to claim 1 is a laminate comprising at least a base material layer and a sealant layer. A package formed by filling a packaging bag having a nozzle with liquid and gas, the total volume of the filled liquid and gas being 80% or more and 100% or less of the maximum volume of the packaging bag, and The package is characterized in that the volume of the gas is 20% to 40% of the maximum volume of the packaging bag.

  In the package according to the present invention, in addition to the liquid which is the original contents, the package is inflated by enclosing a gas of 20% or more of the maximum volume of the packaging bag, and the contents are poured out. Therefore, it is difficult for the laminates on the front and back surfaces to adhere to each other and prevent the outflow of the contents.

  The invention according to claim 2 is the package according to claim 1, wherein the laminate has a gas barrier layer made of a metal foil.

  The invention according to claim 3 is characterized in that the laminate has a gas barrier layer in which any one of a metal, a metal oxide, and an inorganic oxide is vapor-deposited on a base film. Is the body.

According to a fourth aspect of the present invention, the laminate includes a main body surface laminate, a main body back surface laminate, and a bottom tape, and the packaging bag is a sealant for the main body surface laminate and the main body back layer laminate. The bottom seal part at the bottom part, the side seal part on both sides, and the sealing part as the seal part formed by inserting the bottom tape folded with the sealant layer facing outward at the bottom, with the layers facing each other It has a nozzle upper seal part and a nozzle lower seal part that form a nozzle, and a tip seal part of a dispensing nozzle that serves as an opening knob, and a stepped step on the laminate on both the front and back sides of the dispensing nozzle The packaging body according to any one of claims 1 to 3, wherein the packaging body is a standing pouch-shaped packaging bag.
Moreover, invention of Claim 5 has the gas filling opening | mouth with which the said packaging bag was equipped with the non-return valve for filling with gas, In any one of Claims 1-4 characterized by the above-mentioned. It is a package of description.

In the invention of claim 6 , after filling the packaging bag with liquid and heat-sealing the filling opening, the gas is filled from the gas filling port provided with the check valve, and then the gas filling port is heated. It is sealed, The manufacturing method of the package body of Claim 5 characterized by the above-mentioned.

  The packaging body according to the present invention is a packaging body in which a packaging bag having a dispensing nozzle is filled with liquid and gas, and the total volume of the filled liquid and gas is the maximum volume of the packaging bag. Since the volume of the gas is 80% or more and the volume of the gas is 20% or more of the maximum volume of the packaging bag, the inner walls of the packaging bag are difficult to adhere to each other at the time of dispensing. The output speed does not decrease. For this reason, even a highly viscous content such as shampoo or rinse can be quickly poured out.

  A laminate having a gas barrier layer such as a metal foil or a film on which a metal, a metal oxide, or an inorganic oxide is vapor-deposited as a laminate constituting a packaging bag, as in the invention of claim 2 or 3. When used, the filled gas does not dissipate through the laminate during storage and can be stored for a long time.

When the packaging bag is in a standing pouch shape as in the invention described in claim 4, the gas filled inside is difficult to escape when opened, and the laminated body on both the front and back sides of the dispensing nozzle is stepped. If the level | step difference of this is formed, a pouring path will not block.
When the packaging bag has a gas filling port provided with a check valve for filling the gas as in the invention described in claim 5 , the gas filled in filling the gas is Since it is difficult to escape, the required amount of gas can be filled, and the filling operation is facilitated.

If the packaging bag has a self-supporting shape like a standing pouch,
By filling the gas, the independence is improved, so the display effect and handling at the store are improved.

As in the invention described in claim 6 , after the packaging bag is filled with liquid and the filling opening is heat-sealed, the package is manufactured by filling the gas from the gas filling port provided with the check valve. In this case, since the liquid filling nozzle and the gas filling nozzle can be divided into dedicated nozzles, the management of the nozzles is facilitated and stable production is possible as compared with the dual use case.

FIG. 1 is a perspective view showing an embodiment of a package according to the present invention. FIG. 2 is a schematic plan view of a packaging bag used for the package shown in FIG. FIG. 3 is a schematic cross-sectional view showing the A-A ′ cross section of FIG. 2. FIG. 4 is a schematic cross-sectional view showing an example of a gas filling port. FIG. 5 is a schematic cross-sectional view showing an example of a laminate used in the package according to the present invention. FIG. 6 is a schematic plan view showing another embodiment of the packaging bag used in the packaging body according to the present invention. FIG. 7 is a schematic cross-sectional view showing the B-B ′ cross section of FIG. 6. FIG. 8 is a schematic cross-sectional view showing another example of the gas filling port. FIG. 9 is an explanatory view showing a method for manufacturing a package according to the present invention. FIG. 10 is a graph summarizing the results of Examples and Comparative Examples.

  Hereinafter, a packaging body and a manufacturing method thereof according to the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of a package (100) according to the present invention. FIG. 2 is a schematic plan view of the packaging bag (1) used in the package shown in FIG. FIG. 3 is a schematic cross-sectional view showing the A-A ′ cross section of FIG. 2. FIG. 4 is a schematic cross-sectional view showing an example of the gas filling port (31). FIG. 5 is a schematic cross-sectional view showing an example of a laminate (20) used in the package according to the present invention.

  The package (100) according to the present invention is a laminate (20) having at least a base material layer (21) and a sealant layer (24). A packaging body (1) having a nozzle (10) for filling a liquid (40) and a gas (50), wherein the total volume of the filled liquid and gas is the maximum of the packaging bag. The package is characterized by being 80% or more of the volume and having a gas volume of 20% or more of the maximum volume of the packaging bag.

  The package according to the present invention is easy to use as a refill container for storing a relatively high viscosity liquid such as shampoo or rinse. Even in a conventional refill container, some air is contained inside the container, but this is air that is left behind in the process of filling the content liquid and sealing and sealing. It is about 10% of the capacity.

  In the package according to the present invention, the total volume of the filled liquid and gas is 80% or more of the maximum volume of the packaging bag, and the gas volume is 20% or more of the maximum volume of the packaging bag. It is characterized by that.

  FIG. 2 is a schematic plan view of the packaging bag (1) used in the package shown in FIG. 1, and FIG. 3 is a schematic cross-sectional view showing the A-A 'cross section of FIG. In this embodiment, the sealant layers of the main body surface laminate (2) and the main body back surface laminate (3) are opposed to each other, and a bottom tape (4) bent with the sealant layer outside is inserted into the lower part to insert the peripheral edge. It is a standing pouch-shaped packaging bag that is heat-sealed. The standing pouch shape is more preferable because the gas filled inside is difficult to escape when opened.

  The peripheral seal portion includes a bottom seal portion (13) at the bottom, side seal portions (9, 9) on both sides, a nozzle upper seal portion (11) that forms a dispensing nozzle (10), and a nozzle lower seal portion. (12), and in this example, the tip seal portion of the dispensing nozzle is an opening knob (18).

  The upper part of the packaging bag (1) is unsealed as a content filling opening (6), and in this example, a gas filling port (31) provided with a check valve (32) is provided separately. It has been.

  In this example, the dispensing nozzle (10) is provided with an opening notch (15) in the nozzle upper seal portion (11), and further, an easy opening process comprising a plurality of half-cut lines in the laminate on both the front and back surfaces. (14) is given.

  An embossed part (17) is formed in the laminated body of the dispensing nozzle (10) for the purpose of preventing the dispensing nozzle from being blocked during dispensing. FIG. 3 is a schematic cross-sectional view showing the A-A ′ cross section of FIG. 2. In this example, a stepped step is formed in the laminate on both the front and back surfaces so that the pouring path is not blocked.

  FIG. 4 is a schematic cross-sectional view showing an example of the gas filling port (31). FIG. 4 (1) shows a normal state, and FIG. 4 (2) shows a state in which the gas filling nozzle (33) is inserted. In this example, two check valves (32) are attached to the inside of the main body surface laminate (2) and the main body back laminate (3), and injection is performed even if the gas filling nozzle (33) is removed. The generated gas is not released.

  The structure of the check valve (32) is not particularly limited. For example, as shown in FIG. 8, one check valve (32) may be attached to one of the front and back laminates. Moreover, you may fold and form the laminated body of the front and back surfaces inside instead of making it a member different from the laminated body of the front and back surfaces.

  FIG. 5 is a schematic cross-sectional view showing an example of a laminate (20) used in the package according to the present invention. In this example, a gas barrier layer (22) is provided between the base material layer (21) and the sealant layer (24). The gas barrier layer (22) is bonded to the base material layer (21) and the sealant layer (24) by the adhesive layer (23).

  As the base material layer (21), various synthetic resin films generally used as a flexible packaging material can be used. For example, a biaxially stretched polyester film (PET), a biaxially stretched polypropylene film (OPP), or a biaxially stretched nylon film (ONy). In general, the base material layer (21) is often subjected to printing.

As the sealant layer (24), a polyolefin resin is generally used. Specifically, a low density polyethylene resin (LDPE), a medium density polyethylene resin (MDPE), a linear low density polyethylene resin (LLDPE), Ethylene resins such as ethylene-vinyl acetate copolymer (EVA), ethylene-α olefin copolymer, ethylene-methacrylic acid resin copolymer, blend resin of polyethylene and polybutene, homopolypropylene resin, propylene-ethylene Polypropylene resins such as a random copolymer, a propylene-ethylene block copolymer, and a propylene-α olefin copolymer are used.

  As the gas barrier layer (22), a metal foil such as an aluminum foil is used, a base film such as polyethylene terephthalate (PET), a metal such as aluminum, a metal oxide such as aluminum oxide and tin oxide, or silicon dioxide. A gas barrier film on which an inorganic oxide is deposited can be used.

  By providing the gas barrier layer (22), the gas barrier property of the laminate (20) is improved, and it is difficult for gas to escape from the package, so that the preservability of the package is improved.

FIG. 6 is a schematic plan view showing another embodiment of the packaging bag (1) used in the package according to the present invention. FIG. 7 is a schematic cross-sectional view showing the BB ′ cross section of FIG.
In the embodiment shown in FIGS. 6 and 7, the main body surface laminate (2) and the main body back laminate (3) have a structure in which a single laminate is folded at the bent portion (5). For this reason, the dispensing nozzle (10) has a structure in which only one side has a seal portion as shown in FIG.

  For this reason, the seal portion does not exist on the upper side of the dispensing nozzle (10), and the nozzle lower seal portion (12) exists only on the lower side. By taking such a structure, it becomes more difficult to block the pouring path.

  In this example, the easy opening process (14) consisting of a plurality of inclined half-cut lines is applied to the ridge line of the bent portion (5), and the cut line (16) forming the opening knob (18) is formed. ) Is the starting point of opening.

  Moreover, the embossing part (17) is provided in the front and back of the nozzle (10) for extraction. In this example, the emboss is formed in a zigzag wave pattern.

  The content filling opening (6) is formed by cutting a bent portion and is defined by a point seal portion (8). A gas filling port (31) is provided adjacent to the opening for filling the contents.

  FIG. 9 is an explanatory view showing a method for manufacturing a package according to the present invention. FIG. 9 (1) shows the packaging bag (1) before filling. FIG. 9 (2) shows a state in which the filling nozzle (19) is inserted from the content filling opening (6) and filled with the liquid (40).

  FIG. 9 (3) shows a state in which the top seal portion (7) is provided and the contents filling opening (6) is heat sealed. Next, as shown in FIG. 9 (4), the gas filling nozzle (33) is inserted into the gas filling port (31) to enclose the gas (50).

  FIG. 9 (5) shows a state in which the gas filling nozzle is removed, but the gas (50) does not escape greatly due to the action of the check valve (32). Next, as shown in FIG. 9 (6), the package (100) is completed by forming the gas filling port seal portion (34).

  Although the gas filling port seal portion (34) may be provided avoiding the check valve (32), it is preferable to provide the check valve portion so as to collapse, in order to avoid the liquid from entering the contents.

The type of gas filled in the package is usually air, but in order to avoid the influence of oxygen on the contents, an inert gas such as nitrogen can also be used.
Hereinafter, based on an Example, the package concerning the present invention is explained still more concretely.

A laminate having the following configuration was used as the main body surface laminate and the main body back laminate.
<Configuration of laminate>
PET (12 μm) / printing layer / adhesive layer / ONy (15 μm) / adhesive layer / LLDPE (150 μm)
The laminated body which consists of the following structures was used as a bottom tape.
<Configuration of laminate>
PET (12 μm) / Adhesive layer / ONy (15 μm) / Adhesive layer / LLDPE (150 μm)

Using the above laminate, a standing pouch having a dispensing nozzle portion having the shape shown in FIG. 2 was produced. The contents were filled with 900 ml of a commercially available liquid detergent, the top seal part was sealed, then air was filled from the gas filling port, and the gas filling port seal part was sealed and sealed. Six types of samples of Examples 1 to 3 and Comparative Examples 1 to 3 were prepared by changing the amount of air to be filled. Each sample was opened, the contents were actually poured out, and the time required for dispensing was measured. At this time, it was recorded whether the squeezing operation was necessary. The results are shown in Table 1. FIG. 10 shows a summary of the results of Table 1 in a graph.
Note that Comparative Example 2 corresponds to a product that is currently commercially available.

  As is apparent from Table 1 and FIG. 10, the total volume of the filled liquid and gas is 80% or more of the maximum volume of the packaging bag, and the gas volume is 20% of the maximum volume of the packaging bag. If it is above, the squeezing operation becomes unnecessary and it can be seen that the pouring property is improved.

DESCRIPTION OF SYMBOLS 1 ... Packaging bag 2 ... Main body surface laminated body 3 ... Main body back surface laminated body 4 ... Bottom tape 5 ... Bending part 6 ... Contents filling opening part 7 ... Top Seal part 8 ... Point seal part 9 ... Side seal part 10 ... Dispensing nozzle 11 ... Nozzle upper seal part 12 ... Nozzle lower seal part 13 ... Bottom seal part 14 ··· Easy opening 15 ··· Opening notch 16 ··· Cut line 17 · Embossing portion 18 · Opening knob 19 · Filling nozzle 20 · Laminate 21 · Base material Layer 22 ... Gas barrier layer 23 ... Adhesive layer 24 ... Sealant layer 31 ... Gas filling port 32 ... Check valve 33 ... Gas filling nozzle 34 ... Gas filling port seal part 40 ... Liquid 50 ... Gas 100 ... Packaging

Claims (6)

A laminated body having at least a base material layer and a sealant layer, wherein the sealant layers are opposed to each other and the periphery is heat sealed, and a packaging bag having a dispensing nozzle is filled with liquid and gas. The total volume of the filled liquid and gas is 80% to 100% of the maximum volume of the packaging bag, and the gas volume is 20% to 40% of the maximum volume of the packaging bag. A package characterized by.   The said laminated body has a gas barrier layer which consists of metal foil, The package body of Claim 1 characterized by the above-mentioned.   The package according to claim 1, wherein the laminate includes a gas barrier layer in which any of metal, metal oxide, and inorganic oxide is deposited on a base film. The laminate comprises a body surface laminate, a body back laminate, and a bottom tape,
The packaging bag has a seal part formed by sealing the periphery by inserting a bottom tape that is bent with the sealant layer outside and the sealant layer of the main body surface laminate and the main body back laminate facing each other. It has a bottom seal part, side seal parts on both sides, a nozzle upper seal part and a nozzle lower seal part that form a dispensing nozzle, and a tip sealing part of the dispensing nozzle that serves as an opening knob. The packaging body according to any one of claims 1 to 3, wherein the packaging body is a standing pouch-shaped packaging bag in which stepped steps are formed in a laminate on both front and back sides of the dispensing nozzle. The said packaging bag has a gas filling port provided with the non-return valve for filling with gas, The package body of any one of Claims 1-4 characterized by the above-mentioned. After the packaging bag filled with a liquid filling opening heat sealed, gas-filled from check valve gas fill port with a gas filling port to claim 5, characterized in that heat sealing thereafter The manufacturing method of the package body of description.

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