JP4921932B2 - Packaging bag for sherbet-like or granular ice, sealing method and packaging using the same - Google Patents

Description

  The present invention relates to a packaging bag for sherbet-like or granular ice, a sealing method using the packaging bag, and a packaging body.

  In general, when fishing on a small fishing boat or the like, sherbet-like or granular ice is purchased for keeping the freshness of fish caught before fishing, packed in a bag, transported to a fishing boat, etc., and stored in a cooler of the fishing boat. The sherbet-like or granular ice is used after being unsealed and placed in a trolley box when caught. Conventionally, as a packaging bag for enclosing sherbet-like or granular ice, a simple single packaging bag has been generally used.

The sherbet-like or granular ice packed in a bag is handled by being stacked in many stages at the time of transportation until it is loaded on a fishing boat or when it is stored in a cold storage of a fishing boat. At this time, there is a problem that the sherbet-like or granular ice in the bag becomes a lump due to the accumulated pressure in a single bag. As a method for improving this, it is conceivable that the packaging bag has a double structure and an air layer serving as a buffer layer is provided between the outer bag and the inner bag.
However, a simple double structure cannot be suitably used as a packaging bag for enclosing sherbet-like or granular ice. That is, a packaging bag that encloses sherbet-like or granular ice must enclose a large amount of ice in a substantially constant amount. In particular, when an air layer is provided as a double structure, there is a problem that the number of steps for injecting air into the enclosing operation increases and the work efficiency deteriorates. Furthermore, when catching, it is required to open the package quickly and take out the sherbet or granular ice in the package at once, and the packaging bag for sherbet or granular ice that satisfies these required performances There was no.

  Conventionally, various packaging bags having a double structure, which have been developed in order to put a specific article to be packaged, have been proposed. For example, in Patent Document 1, an inner layer bag is inserted into an outer layer bag as a bag used to put food such as margarine that is liquid at the time of filling and solidified at the time of taking out, and is tape-like at the opening of the inner layer bag. An inner bag for a bag-in-box with a spout in which an easily peelable layer is interposed has been proposed. Moreover, in patent document 2, as a packaging bag used for conveying the to-be-packaged goods which are weak to the impact from the outsides, such as a precision instrument, it was integrally provided by heat sealing in the outer bag and this outer bag. There has been proposed an inner bag in which a part around the outer bag can be opened and closed by a chuck. However, no packaging bag for sherbet or granular ice has been proposed.

JP 2002-284194 A JP 2002-145878 A

  Therefore, in the present invention, as described above, sherbet-like or granular ice can be easily enclosed in the packaging bag, and it is possible to prevent a lump from being formed when the packages are stacked. Another object of the present invention is to provide a sherbet-shaped or granular ice packaging bag that can be opened quickly and easily at the time of use, a sealing method using the same, and a package.

That is, the present invention
(1) A sherbet-like or granular ice packaging bag 1 comprising a outer bag 11 and an inner bag 12, and having a double structure in which the outer bag 11 and the inner bag 12 are joined and sealed at the bottom 1a. A sherbet-shaped or granular ice packaging bag characterized in that the inner bag 12 protrudes from the opening 11b of the outer bag and has an easy-opening means for opening the inner bag 12 at the bottom 1a.
(2) The easy-opening means is characterized in that a tape-like easy-opening material 20 in which both outer layers are sealant layers 201 and the core layer is an easy-release layer 202 is sealed by interposing the inner bag 12. The packaging bag for sherbet-like or granular ice according to (1).
(3) After putting sherbet-like or granular ice from the opening 12b of the inner bag of the packaging bag 1 according to (1) or (2), the opening 12b of the inner bag is heat-sealed, and then the outer bag The opening 11b is heat-sealed leaving an unsealed portion capable of injecting air, and after the air is injected from the unsealed portion into the outer bag 11, the unsealed portion is heat-sealed. Method.
(4) After putting sherbet-like or granular ice from the opening 12b of the inner bag of the packaging bag 1 according to (1) or (2), the inner bag is folded into the outer bag 11 from the opening 12b side. After sealing the opening 12b of the bag, and then heat-sealing the opening 11b of the outer bag, leaving an unsealed portion to the extent that air can be injected, and then injecting air from the unsealed portion into the outer bag 11 The sealing method is characterized by heat-sealing the unsealed portion.
(5) After putting sherbet-like or granular ice from the opening 12b of the inner bag of the packaging bag 1 according to (1) or (2), the opening 11b of the outer bag is then unfilled to the extent that air can be injected. A sealing method, wherein the sealing portion is heat sealed, air is injected into the outer bag 11 from the unsealed portion, and then the unsealed portion is heat sealed.
(6) A packaging body in which sherbet-like or granular ice is encapsulated by the enclosing method according to any one of (3) to (5).

  The packaging bag 1 for sherbet-like or granular ice according to the present invention puts sherbet-like or granular ice in the inner bag 12 of the double-structured packaging bag 1, and air is placed between the outer bag 11 and the inner bag 12. The work of injecting and encapsulating can be suitably performed. Moreover, it is possible to prevent sherbet-like or granular ice from being agglomerated by pressure even when stacked during transportation or storage. Further, since the sherbet-like or granular ice can be easily opened, the sherbet-like or granular ice can be taken out at a time.

Hereinafter, preferred embodiments of the present invention will be described in detail.
1 is a schematic plan view showing a configuration of an embodiment of a sherbet-like or granular ice packaging bag according to the present invention, and FIG. 2 is a schematic cross-sectional view showing a state of a bottom portion of the packaging bag shown in FIG. It is.
A packaging bag 1 for sherbet-like or granular ice according to the present invention has a double structure in which an outer bag 11 and an inner bag 12 are formed, and the outer bag 11 and the inner bag 12 are joined and sealed at the bottom 1a. A sherbet-shaped or granular ice packaging bag 1 having an inner bag 12 that protrudes from the opening 11b of the outer bag and has an easy-opening means for opening the inner bag 12 at the bottom 1a. It is what.

  The plastic film used for the outer bag 11 and the inner bag 12 is not particularly limited and may be transparent or opaque, but a film made of a polyethylene resin such as a linear low density polyethylene resin, a film made of a polyamide resin, etc. A film having flexibility even at about 0 ° C. is preferably used. Moreover, what laminated | stacked the several film from surfaces, such as intensity | strength and safety | security, may be used.

  The shapes of the outer bag 11 and the inner bag 12 used in the packaging bag 1 of the present invention are not particularly limited, and the outer bag 11 and the inner bag 12 do not necessarily have the same shape. Both bags 12 are preferably rectangular bags. Moreover, the outer bag 11 of the present invention is formed longer than the inner bag 12 in the width direction, and shorter than the inner bag 12 in the direction orthogonal to the width direction.

The easy opening means for opening the inner bag is not particularly limited. For example, (1) a method of providing a V-shaped or I-shaped notch at the bottom end of the packaging bag 1, and (2) a cut tape Various methods such as a method of sticking, (3) a method of interposing a tape-shaped easy-opening material in an inner bag and sealing it may be used. Among these, (3) the method of sealing with a tape-like easy-opening material interposed on the inner surface of the inner bag is particularly preferable because it can be opened without cutting the bag body.
As shown in FIG. 2, the tape-shaped easy-opening material 20 includes a sealant layer 201 whose outer layers can be heat-sealed, and an easily peelable layer whose core layer is made of a hard-to-fusible resin that is difficult to melt. 202. It is particularly preferable to provide a base material layer having excellent heat resistance between the outermost sealant layer 201 and the core easy-peeling layer 202. Further, as the easy-peeling layer 202 of the core layer, a layer obtained by partially laminating a resin layer made of a resin having relatively weak adhesive strength and a layer made of an adhesive or a pressure-sensitive adhesive is used. Furthermore, it is preferable that the center side edge part of the packaging bag of the tape-shaped easy-opening material 20 is coat | covered with the sealant layer.

Next, an example of the bag making method of the packaging bag 1 according to the present invention will be described with reference to FIG.
First, two films are overlapped, and both side edges 12c are heat-sealed to form a cylindrical body that becomes the inner bag 12. Next, a film is formed on both sides of the cylinder that will be the inner bag 12 so that the bottoms are aligned, and both ends 11 c are heat sealed to form the cylinder that will be the outer bag 11. Thus, a double-structured cylinder having a cylinder that becomes the inner bag 12 inside the cylinder that becomes the outer bag 11 is obtained. Next, the bottom portion of the outer bag 11 and the inner bag 12 is heat-sealed by interposing the tape-shaped easy-opening material 20 on the bottom portion 12a of the cylindrical body that becomes the inner bag 12, and the outer bag 11 and the inner bag 12 are joined at the bottom portion. To do.
In this case, it is preferable that the tape-shaped easy-opening material 20 is attached so as to protrude into the bag of the inner bag 12. In order to improve impact strength, it is preferable to provide a plurality of heat seals. Furthermore, in order to improve the impact strength, it is preferable that the heat seal positions of the tape-shaped easy-opening material 20 and the inner bag 12 are different on the front and back sides.
At this time, since the inner bag 12 is made longer than the outer bag 11, the inner bag 12 has a shape protruding from the opening 11b of the outer bag. Thus, the packaging bag 1 of this invention can be manufactured.
In addition, when using a V-shaped or I-shaped notch as an easy-opening means, the bottoms of the inner bag 11 and the outer bag 12 of the double-structured cylindrical body were heat sealed and joined to form a bag shape. Then, the packaging bag 1 of this invention can be manufactured by providing a V-shaped or I-shaped notch.

When enclosing sherbet-like or granular ice in the packaging bag 1, for example, the following method is exemplified.
As a first method, first, sherbet-like or granular ice is put through the opening 12b of the inner bag. Next, after heat-sealing the opening 12b of the inner bag, the opening 11b of the outer bag is heat-sealed leaving an unsealed portion to the extent that air can be injected. After heat sealing, air is injected into the outer bag 11 from the unsealed portion, and the unsealed portion is heat sealed so as to cover the periphery of the inner bag 12 with an air layer, so that sherbet-like or granular ice is enclosed. You can get a body.
In that case, since the inner bag 12 protrudes from the opening part 11b of the outer bag, the packaging bag 1 according to the present invention is easy to open the opening part 12b of the inner bag, and the inner bag 12 has a sherbet shape. Or easy to put granular ice. Moreover, since the inner bag 12 protrudes from the opening part 11b of an outer bag and the inner bag 12 is exposed, the packaging bag 1 which concerns on this invention performs the operation | work which heat seals the opening part 12b of an inner bag easily. be able to.
Moreover, when injecting air from an unsealed part, it can be performed by an air nozzle or the like. At that time, the packaging bag 1 according to the present invention has the outer bag 11 and the inner bag 12 joined at the bottom 1a, and the side edge 11c of the outer bag and the side edge 12c of the inner bag are separated from each other. Air reaches the front and back of the inner bag 12 through the separated portion, and an air layer that covers the inner bag 12 can be formed by a single air injection operation.
In addition, when performing heat sealing while leaving the unsealed portion, the position and number of the unsealed portions are not particularly limited, but it is particularly that the unsealed portion is left adjacent to the side edge 11c of the outer bag. preferable.

As a second method, after putting sherbet-like or granular ice from the opening 12b of the inner bag, the inner bag 12 is folded into the outer bag 11 from the opening 12b side to seal the opening 12b of the inner bag. Then, the opening 11b of the outer bag is heat-sealed, leaving an unsealed portion to which the air injection member can be inserted, and air is injected into the outer bag 11 from the unsealed portion, and then the unsealed portion is heat-sealed. Thus, a package in which sherbet-like or granular ice is enclosed can be obtained.
In addition, the method of sealing the opening part 12b of an inner bag is not specifically limited, For example, it is preferable to fasten with a tape etc.
In the case of this method, since the inner bag 12 protrudes from the opening 11b of the outer bag in the packaging bag 1 according to the present invention, the protruding portion of the inner bag becomes a bending allowance, and a large capacity in the inner bag 12 is secured. It becomes possible.

  As a third method, after putting sherbet-like or granular ice from the opening 12b of the inner bag, the opening 11b of the outer bag is heat-sealed, leaving an unsealed portion to which air can be injected. After heat-sealing, air is injected from the unsealed portion into the outer bag 11 so that the inner bag 12 is covered with an air layer, and the unsealed portion is heat-sealed so that sherbet-like or granular ice is enclosed. You can get a body.

  In the case of this method, since the inner bag 12 protrudes from the opening 11b of the outer bag, the inner bag 11 serves as a guide when the air is injected into the unsealed portion. It can be accurately inserted into the opening between the bag 11 and the inner bag 12. And in the case of this method, since the process of heat-sealing the opening part 12b of an inner bag is unnecessary, the number of processes reduces compared with a 1st method or a 2nd method, and working efficiency improves.

  Even when the packaging body obtained by the above-described sealing method is stacked at the time of transportation or storage, the sherbet-like or granular ice in the inside can be prevented from agglomerating, and the bottom 1a can be easily opened. By having a means, it can be opened easily, and the sherbet-like or granular ice inside can be taken out at once.

  The sherbet-like or granular ice packaging bag according to the present invention is suitable as a packaging bag for transporting sherbet-like or granular ice used for maintaining the freshness of fish caught when fishing on a small fishing boat or the like. Can be used.

It is a schematic plan view which shows the structure of one Embodiment of the packaging bag for sherbet-like or granular ice which concerns on this invention. It is a schematic sectional drawing which shows the state of the bottom part of the packaging bag for sherbet-like or granular ice shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bag 1a Bottom part 11 Outer bag 11a Outer bag bottom part 11b Outer bag opening part 11c Outer bag side edge 12 Inner bag 12a Inner bag bottom part 12b Inner bag opening part 12c Inner bag side edge 20 Tape-shaped easy opening means 201 Sealant layer 202 Easy release layer

Claims (6)

It is a packaging bag 1 for a sherbet-like or granular ice having a double structure comprising an outer bag 11 and an inner bag 12, wherein the outer bag 11 and the inner bag 12 are joined and sealed at the bottom 1a,
A packaging bag for sherbet-like or granular ice, wherein the inner bag 12 protrudes from the opening 11b of the outer bag and has an easy-opening means for opening the inner bag 12 at the bottom 1a.   The easy-opening means is characterized in that a tape-like easy-opening material 20 in which both outer layers are sealant layers 201 and the core layer is an easy-release layer 202 is sealed with an inner bag 12 interposed. A packaging bag for sherbet-like or granular ice according to 1. After putting sherbet-like or granular ice from the opening 12b of the inner bag of the packaging bag 1 according to claim 1 or 2, the opening 12b of the inner bag is heat-sealed,
Next, the opening 11b of the outer bag is heat-sealed leaving an unsealed portion to the extent that air can be injected,
A sealing method, wherein air is injected into the outer bag 11 from the unsealed portion, and then the unsealed portion is heat sealed. After putting sherbet-like or granular ice from the opening 12b of the inner bag of the packaging bag 1 according to claim 1 or 2,
Fold the inner bag into the outer bag 11 from the opening 12b side and seal the opening 12b of the inner bag,
Next, the opening 11b of the outer bag is heat-sealed leaving an unsealed portion to the extent that air can be injected,
A sealing method, wherein air is injected into the outer bag 11 from the unsealed portion, and then the unsealed portion is heat sealed. After putting sherbet-like or granular ice from the opening 12b of the inner bag of the packaging bag 1 according to claim 1 or 2,
Next, the opening 11b of the outer bag is heat-sealed leaving an unsealed portion to the extent that air can be injected,
A sealing method, wherein air is injected into the outer bag 11 from the unsealed portion, and then the unsealed portion is heat sealed.   A package body in which sherbet-like or granular ice is encapsulated by the enclosing method according to claim 3.

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