JP2014024583A - Packing bag and manufacturing method of package using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To propose a packing bag having a cushioning characteristic and a manufacturing method of a package using the same, for enhancing the cushioning effect, being freely designable in response to a shape and weight of the content to be protected, being easy in filling air, being capable of efficiently packing, being capable of stage-stacking and being inexpensively suppliable with a simple structure.SOLUTION: The packing bag is formed by sealing the peripheral edge, by opposing mutual respective inner surface films by preparing two cushioning bags of forming the mutual these two films as one communicated air cell, by sealing the peripheral edge, by opposing a sealant layer of the inner surface film having the sealant layer on inner-outer surfaces and a sealant layer of an outer surface film having the sealant layer on an inner surface. In the packing bag, each of the air cells of the cushioning bag have a plurality of partial seal parts, and are formed for protecting the content from both obverse-reverse surfaces by the cushioning bag by sealing after filling the air from an air blowing-in port of one place provided in the respective cushioning bags.

Description

  The present invention relates to a packaging bag having a cushioning property used for protecting a commodity from an impact when transporting a commodity that is easily damaged, and a method of manufacturing a package using the packaging bag.

  As a cushioning material using air cushioning properties, a thin synthetic resin film tube in which air is sealed and seal portions are provided at regular intervals to form a connected balloon is known. Since these cushioning materials can be very low in cost per volume, they are used for applications such as filling a space in a box containing products.

  However, just filling the gaps in the box with cushioning material may cause the product to move toward the outside of the box depending on the shape and weight of the product, and a sufficient protective effect cannot be expected. .

  In order to fully protect the product, it is necessary to surround the product itself with a cushioning cushioning material and fix it so that it does not come off, or to provide cushioning to the packaging bag itself that contains the product. is necessary.

  The buffer packaging bag described in Patent Document 1 solves the above-mentioned problem, and can be filled with air from one place in all the sealed bag portions that are continuously divided in the lateral direction. The air filled in the portion is made of a cushioning material made of a synthetic resin film sheet configured such that each sealed bag portion independently maintains a sealed state so as not to escape from the sealed bag portion. The sealing bag part is folded in the length direction so that the cylinder is cylindrical, and the end parts of the cushioning material in the folding direction are joined together by welding, and the sealing bag part located at both end parts aligned in the horizontal direction has air In the filled state, the buffer packaging bag is characterized in that the diameter is larger than that of the sealed bag portion positioned therebetween.

  The buffer packaging bag described in Patent Document 1 has a large number of sealed bag portions filled with air, and each sealed bag portion is provided with a check valve so that the air filled therein does not leak. Yes.

  The buffer packaging bag described in Patent Document 1 includes a plurality of independent air chambers, a mechanism capable of simultaneously filling each air chamber with air, and a reverse for each air chamber in order to prevent the air from leaking. Since it is a structure provided with a stop valve, it is structurally complicated and must be expensive.

  The buffer packing bag described in Patent Document 2 and the double self-supporting bag described in Patent Document 3 to be filed by the applicant solves this problem. This is what we tried to realize.

Japanese Patent Laid-Open No. 2003-118773 JP 2010-89808 JP JP 2010-275018

The buffer packing bag described in Patent Document 2 has a structure in which one air chamber is provided on each of the front and back surfaces of a storage unit that stores products, and the product is in a state of being located at the center of a large space. For this reason, when the product becomes large, the size of the bag also becomes large, and there is a problem that when the air is filled, the central portion of the bag swells and becomes round and cannot be stacked.

  Moreover, in the double self-supporting bag described in patent document 3, the front and back of a storage part are only one air chamber which connected. For this reason, depending on the weight and shape of the product, there is a problem that the inner bag containing the product comes into contact with the outer bag and the function as a cushioning material is not sufficiently exhibited.

  The problem to be solved by the present invention has a high buffering effect, can be freely designed according to the shape and weight of the contents to be protected, can be easily filled with air, and can be packaged efficiently. The present invention proposes a packaging bag with cushioning properties that can be stacked and supplied with a simple structure at low cost and a method of manufacturing a package using the packaging bag.

  As means for solving the above-mentioned problems, the invention according to claim 1 is directed so that the outer surface side sealant layer of the inner surface film having the sealant layer on the inner surface and the outer surface is opposed to the sealant layer of the outer surface film having the sealant layer on the inner surface. The packaging bag is prepared by sealing two rims and preparing two buffer bags having an air chamber in which the two films are communicated with each other. And each air chamber of the buffer bag has a plurality of partial seal portions, and after filling air from one air blowing port provided in each buffer bag, hermetically sealing, The packaging bag is characterized in that the contents are protected from both front and back surfaces by a buffer bag.

  The packaging bag having cushioning properties according to the present invention prepares two buffer bags with the sealing surfaces of the outer film and the inner film facing each other, the periphery is sealed, and an air chamber is provided between the films. This is a packaging bag made by facing the inner films of each other and sealing the periphery, so that the contents are put into the bag and air is blown to protect the contents so that they are surrounded by an air layer. It functions as a packaging bag with materials.

  Since the air chamber is divided into a plurality of small air chambers by a plurality of partial seal portions, there is no problem that the central portion of the package is inflated and cannot be stacked.

  The invention according to claim 2 is characterized in that the partial seal portion is a horizontal seal portion alternately directed inward from the right peripheral seal portion and the left peripheral seal portion. It is a bag.

  The invention according to claim 3 is the packaging bag according to claim 1, wherein the partial seal portion is an island-shaped seal portion scattered in a region surrounded by the peripheral seal portion. .

  According to a fourth aspect of the present invention, the contents are stored in the packaging bag according to any one of the first to third aspects, the filling opening is sealed, and then air is blown into the front and back buffer bags. It is the manufacturing method of the package body filled with air from a mouth.

  According to a fifth aspect of the present invention, the contents are stored in the packaging bag according to any one of the first to third aspects, the air in the packaging bag is deaerated, and then the filling opening is sealed. Then, the air bag is filled with air from the air blowing ports of the front and back buffer bags.

The packaging bag according to the present invention is prepared by preparing two buffer bags manufactured by sealing two films of an inner surface and an outer surface, and sealing a peripheral edge. Since no stop valve is used, it can be manufactured at low cost.

  Since the packaging bag and the cushioning material are integrated, there is no problem that the cushioning material is detached from the packaging bag and the protective effect is lost.

  Moreover, since it is shape | molded in the bag shape, it can be set as the package body provided with the buffer property by simple operation of only putting the contents in a bag and inflating. In addition, by designing the bag according to the contents, it is possible to obtain an optimum shape for the contents.

  Since the air chamber is divided into a plurality of small air chambers by a plurality of partial seal portions, there is no problem that the central portion of the package is inflated and cannot be stacked.

  As in the second aspect of the invention, the air chamber is divided into a plurality of horizontally long and communicated small air chambers by horizontal partial seal portions alternately inward from the right peripheral seal portion and the left peripheral seal portion. In such a case, the contents can be protected so as to be surrounded by a horizontal streaky air chamber.

  In the case where the air chamber is divided into a plurality of communicating small air chambers by island-shaped partial seal portions scattered in a region surrounded by the peripheral seal portion, as in the invention described in claim 3, Since the product is sandwiched between planar cushioning materials, it is particularly suitably used for planar contents.

  According to the method for manufacturing a package according to claim 4, all the small air chambers are filled with air by blowing air from an air blowing port which is an unsealed portion provided in one place on the front and back buffer bags. After that, the packaging body having shock-absorbing properties is completed by a simple operation of sealing and sealing the air blowing port, so that the packaging work can be performed efficiently.

  According to the method for manufacturing a package according to claim 5, after the contents are stored in the packaging bag, the air in the packaging bag is deaerated, the filling opening is sealed, and then the front and back buffer bags Since air is filled from the air blowing port, the contents are in a state of being vacuum-packed by the inner film. For this reason, the contents do not move around in the packaging bag, and the buffering effect is enhanced.

FIG. 1 is a perspective view showing an embodiment of a packaging bag according to the present invention, and is an example of a packaging bag according to claim 2. FIG. 2 is a schematic cross-sectional view showing the X-X ′ cross section of FIG. 1. FIG. 3 is a schematic plan view of the packaging bag shown in FIG. FIG. 4 is a schematic plan view showing an embodiment of the packaging bag according to claim 3. FIG. 5 is a schematic cross-sectional view of a package in which the contents are stored in the packaging bag shown in FIG. 1 according to the method of claim 4. FIG. 6 is a schematic cross-sectional view of a package in which contents are stored in the packaging bag shown in FIG. 1 according to the method of claim 5.

Hereinafter, the packaging bag according to the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view showing an embodiment of a packaging bag according to the present invention, and is an example of a packaging bag according to claim 2. FIG. 2 is a schematic cross-sectional view showing the XX ′ cross section of FIG. 1. FIG. 3 is a schematic plan view of the packaging bag shown in FIG. FIG. 5 is a schematic cross-sectional view of a package in which the contents are stored in the packaging bag shown in FIG. 1 according to the method of claim 4. This will be described below with reference to these drawings.

  The packaging bag (2) according to the present invention includes an outer surface side sealant layer (23) of an inner surface film (5) having a sealant layer on the inner and outer surfaces, and an inner surface side of an outer surface film (4) having a sealant layer (22) on the inner surface. A buffer bag (7) facing the sealant layer (25) and sealing the peripheral edges (11, 12, 13, 14) to form a single air chamber (7) between the two films. 3) is a packaging bag in which two inner surface films (5) are opposed to each other and the periphery is sealed, and each of the air chambers (7) of the buffer bag (3) includes a plurality of air bags (7). It is divided into a plurality of small air chambers (8) by a partial seal portion (15), and after filling air from one air blowing port (6) provided in each buffer bag (3), air By sealing the sealing seal planned part (18), A packaging bag being characterized in that so as to protect the buffer bag volume product (10) from both sides (3).

  In the embodiment shown in FIGS. 1 to 3, the air chamber (7) has a horizontal partial seal portion (16) alternately directed inward from the right peripheral seal portion (11) and the left peripheral seal portion (12), It is divided into a plurality of horizontally long and communicating small air chambers (8).

  After the contents (10) are inserted from the filling opening (9) of the packaging bag (2) and the filling seal portion (19) is sealed, an air blowing port provided at one place on the outer film (4) ( 6) Fill all the small air chambers (8) with air by blowing in air. Thereafter, the air-seal seal portion (18) at the tip of the air inlet (6) is hermetically sealed to form an air-sealing seal portion (not shown), thereby providing two cushioning properties. The package (1) in which the contents (10) are protected by the buffer bag (3) is completed.

  The packaging bag (2) according to the present invention seals the periphery of the two films of the outer film (4) and the inner film (5) facing each other, and a small air chamber (8) between the films. This is a structure in which two buffer bags (3) having a structure provided with a combination, and since no special member other than a film such as a plug or a valve is used, the cost can be kept low.

  In addition, since the air chamber (7) is divided by a plurality of partial seal portions (15), it is possible to design without waste according to the outer shape of the content (10) to be protected, and the minimum material A packaging bag having cushioning properties can be manufactured.

  In addition, the packaging bag (2) can be simply operated by blowing air after the contents (10) are inserted therein to seal the filling opening (9) to form the filling seal portion (19). Can be packed. Furthermore, since a plurality of small air chambers (8) communicate with each other, all the small air chambers (8) can be inflated simply by blowing air from one air blowing port (6). The efficiency of is good.

  The air chamber (7) is an assembly of small air chambers (8). By arranging the horizontal partial seal portion (16) in this way, it is possible to prevent the central portion of the air chamber (7) from expanding greatly, and thus the packaging bodies (1) can be stacked. Become. Further, when storing the package (1) in the outer box, it is not necessary to prepare an unnecessarily large outer box.

FIG. 4 is a schematic plan view showing an embodiment of the packaging bag (2) according to claim 3.
In the embodiment shown in FIG. 4, the air chamber (7) communicates with the island-shaped partial seal portions (17) scattered in the region surrounded by the peripheral seal portions (11, 12, 13, 14). Divided into small air chambers (8).

  In this embodiment, the boundary of each small air chamber (8) is not clear, but the air chamber (7) is an aggregate of small air chambers (8). By arranging the island-shaped partial seal portion (17) in this way, it is possible to prevent the central portion of the air chamber (7) from expanding greatly, so that the packaging bodies (1) can be stacked. It becomes. Further, when storing the package (1) in the outer box, it is not necessary to prepare an unnecessarily large outer box.

  In the embodiment shown in FIG. 4, the island-shaped partial seal portions (17) are arranged in a grid pattern, but this arrangement is not particularly limited as long as it is evenly distributed. There may be no sex.

  FIG. 5 is a schematic cross-sectional view of a package (1) in which the contents (10) are stored in the packaging bag (2) shown in FIG. 1 according to the method described in claim 4. As a manufacturing method of the package according to the present invention, after the contents (10) are first stored in the packaging bag (2), the filling opening (9) is sealed, and the filling seal portion (19) is formed. The air is filled from the air blowing port (6) of the front and back buffer bags (3). The air is filled by inserting an air nozzle into the air blowing port (6) and blowing compressed air. At the stage where a predetermined amount of air has been injected, the air-sealed seal planned portion (18) is sealed to confine the air in the air chamber (7), thereby completing the package (1).

  Since the contents (10) are pressed by the force that the cross-section of each small air chamber (8) tends to be circular, the movement in the packaging bag is restricted. Moreover, since the contents (10) are packaged so as to be surrounded by the small air chamber (8), the contents (10) are sufficiently protected against an impact from any direction.

  FIG. 6 is a schematic cross-sectional view of a package (1) in which the contents (10) are stored in the packaging bag (2) shown in FIG. 1 according to the method described in claim 5. In the method for manufacturing a package according to claim 5, the contents (10) are first stored in the packaging bag (2), the air in the packaging bag is then deaerated, and then the filling opening (9) is sealed. Then, the air bag is filled with air from the air blowing ports (6) of the front and back buffer bags (3).

  According to this method, since the content (10) is close to the form vacuum-packed by the inner film (5), the movement of the content (10) in the packaging bag (2) is completely restricted. The For this reason, the effect which protects the content becomes very high.

  In this method, since the inner film (5) is formed into a shape along the outer shape of the contents (10), the cross-sectional shape of the small air chamber (8) is a kamaboko type.

  The gas sealed in the air chamber may be air or an inert gas such as nitrogen gas. Even when air is used, it is desirable to use sufficiently dried air.

  As a film used for the packaging bag (2) according to the present invention, various thermoplastic resin films can be used, and the size, shape, weight, and required impact resistance of the target contents. It is designed appropriately according to the degree.

If the required level is not high, a single film of polyolefin resin such as polyethylene resin or polypropylene resin may be used. When the required level is high, for example, a film having sufficient strength such as a polyester resin film or a polyamide resin film can be used as the base film (21, 22). Furthermore, a laminate film obtained by bonding a polyolefin resin film as a sealant layer (22, 23, 25) to these high-strength films can be used.

  Furthermore, a gas barrier layer may be provided in the middle so that air does not escape even after long-term use. The outer film (4) and the inner film (5) do not necessarily have the same specifications.

DESCRIPTION OF SYMBOLS 1 ... Packaging 2 ... Packaging bag 3 ... Buffer bag 4 ... Outer film 5 ... Inner film 6 ... Air blowing port 7 ... Air chamber 8 ... Small air Chamber 9 ... Filling opening 10 ... Contents 11 ... Right peripheral seal part 12 ... Left peripheral seal part 13 ... Upper peripheral seal part 14 ... Lower peripheral seal part 15 ... -Partial seal part 16 ... Horizontal partial seal part 17 ... Island-shaped partial seal part 18 ... Air-sealing seal planned part 19 ... Filling seal part 21 ... Base film 22 ... Sealant layer 23 ... outer surface side sealant layer 24 ... base film 25 ... inner surface side sealant layer

Claims (5)

  The outer surface side sealant layer of the inner surface film having the sealant layer on the inner and outer surfaces is opposed to the sealant layer of the outer surface film having the sealant layer on the inner surface, the peripheral edge is sealed, and the two films are communicated with each other. Two buffer bags are prepared as air chambers, the inner film is opposed to each other, and the periphery is sealed. Each air chamber of the buffer bag has a plurality of partial seal portions. And after filling with air from one air blowing port provided in each buffer bag, the contents are protected by the buffer bag from both the front and back surfaces by sealing hermetically. Packaging bag.   2. The packaging bag according to claim 1, wherein the partial seal portion is a horizontal seal portion alternately directed inward from the right peripheral seal portion and the left peripheral seal portion.   The packaging bag according to claim 1, wherein the partial seal portion is an island-shaped seal portion scattered in a region surrounded by the peripheral seal portion.   A package body, wherein the contents are stored in the packaging bag according to any one of claims 1 to 3 and the filling opening is sealed, and then air is filled from the air blowing ports of the front and back buffer bags. Manufacturing method.   The contents are stored in the packaging bag according to any one of claims 1 to 3, and after the air in the packaging bag is deaerated, the filling opening is sealed, and then from the air blowing ports of the front and back buffer bags. The manufacturing method of the package body filled with air.

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