JP2013147282A - Banana packaging bag and package containing banana - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a banana packaging bag, with which banana transportation and additional heat treatment is allowed to be performed without opening and closing the packaging bag packaging a banana and provide a banana package containing the banana packed with the banana packaging bag.SOLUTION: A banana packaging bag 10 used for packing a banana 2 is formed of a synthetic resin film with a hole 11, wherein the opening area ratio of the synthetic resin film is 7×10% or more and 1.5×10% or less, and the inner surface area of the bag is 100 cmor more and 600 cmor less per 100g of the banana.

Description

  The present invention relates to a banana packaging bag and a banana-containing package.

  Bananas are cultivated in southern countries such as the Philippines, Ecuador, Colombia, and Taiwan, and some of them are consumed, but most of them are exported to importing countries such as Japan that do not produce bananas. .

  Normally, exported bananas are provided from the time they are harvested to the consumer's table via the following route.

  First, bananas are usually harvested in a green (immature) state and shipped to importing countries at the right time.

  In this case, in the harvesting land (exporting country), for example, bananas are packed in a polymer film packaging bag, for example, 5 to 200, toward the importing country with the mouth of the packaging bag closed, Transported by sea and / or land. In addition, when transporting, bananas are put in a packaging bag to prevent pests from adhering to the bananas, to prevent deterioration of banana freshness due to weight reduction, and to facilitate handling of bananas. It is to do.

  Next, after arriving at the importing country, the banana sealed by the packaging bag is opened, and the green banana is colored yellow by an ethylene gas treatment that is exposed to ethylene gas (ripening treatment). In addition, this ripening period is 3 to 8 days normally including the slow cooling period after an ethylene gas process.

  Thereafter, the banana that has turned yellow (mature) is sealed again using a packaging bag, shipped to the market, etc., and then provided to the consumer's table. Meanwhile, it is about 2 to 10 weeks after shipment from the producing country.

  Here, the banana that has turned yellow, that is, the banana that has been subjected to the ripening treatment, comes into contact with oxygen in the air, resulting in an early deterioration in quality.

  Therefore, conventionally, various studies have been made on the size and number of holes formed in the packaging bag in order to maintain the freshness (for example, see Patent Document 1).

  However, in such a package, as described above, since the hole is not formed in the packaging bag in accordance with the process of transportation from the exporting country to the importing country and the conditions for performing the ripening treatment, According to the conditions required in the above, it has been necessary to repeatedly open and seal the packaging bag, and there is a problem that time and labor are required.

JP-A-6-125701

  An object of the present invention is to provide a banana packaging bag capable of transporting and ripening a banana without opening and closing the packaging bag for packaging the banana, and a banana-containing package including the banana packaged in the banana packaging bag. Is to provide.

Such an object is achieved by the present invention described in the following (1) to (5).
(1) A banana wrapping bag that is used to wrap bananas and is composed of a synthetic resin film with holes,
The hole area ratio of the synthetic resin film is 7 × 10 ⁻⁴ % or more and 1.5 × 10 ⁻² % or less, and the surface area in the bag per 100 g of the banana is 100 cm ² or more and 600 cm ² or less. Banana packaging bag characterized by.

(2) The banana packaging bag according to (1), wherein immature bananas are packaged.
(3) The banana packaging bag according to (1) or (2), wherein the banana packaging bag includes a plurality of the holes, and the average hole diameter of the holes is 50 μm or more and 500 μm or less.

  (4) The said hole is a banana packaging bag in any one of said (1) thru | or (3) provided substantially uniformly over the whole in the planar view of the said synthetic resin film.

  (5) A banana-containing package comprising the banana packaging bag according to any one of (1) to (4) above and a banana packaged in the banana packaging bag.

  According to the banana packaging bag of the present invention, in the process of transporting bananas, it is possible to accurately suppress or prevent weight loss due to the release of moisture contained in the bananas, and in the process of ripening treatment, By taking ethylene gas into the banana packaging bag, the banana can be surely colored yellow.

  That is, without opening the banana packaging bag, the package containing banana can be used for the process of transporting the banana and the process of ripening treatment.

It is a schematic diagram which shows suitable embodiment of the package body containing a banana which packed the banana with the banana packaging bag.

  Hereinafter, the banana packaging bag and the banana-containing packaging body of the present invention will be described in detail based on preferred embodiments.

  FIG. 1 is a schematic diagram showing a preferred embodiment of a banana-containing package in which bananas are packaged in a banana packaging bag. In addition, in FIG. 1, the hole which a banana and a banana packaging bag have exaggerated is shown typically for convenience of explanation, and the size and ratio of the banana and the hole are greatly different from actual ones.

  A banana-containing package 1 shown in FIG. 1 has a banana packaging bag 10 and a banana 2 packaged in the banana packaging bag 10.

  Banana 2 is a fruit that is cultivated in southern countries such as the Philippines, Ecuador, Colombia, and Taiwan, and belongs to the genus Bacolaceae. Any of these can be packaged in the banana packaging bag 10.

  As described in the background art, the banana 2 is normally harvested and transported in an immature state, and is matured by ripening treatment in which the banana 2 is exposed to ethylene gas in an importing country (for example, Japan).

  This is a treatment corresponding to the Plant Protection Law that prohibits the import of mature bananas based on the fact that pests such as citrus fruit fly and fruit fly parasitize mature bananas but not immature bananas. In order to cope with this, in the present invention, the immature banana 2 before the ripening treatment is packaged in the banana packaging bag 10.

  In addition, since the color of the skin of the banana 2 is immature, the color of the skin is “green” and the color of the skin is “yellow” except in the maturity. The color of the immature banana is “green” and the color of the mature banana is “yellow”.

  The banana wrapping bag 10 is used to wrap the banana 2 and is formed of a synthetic resin film having holes 11.

  Moreover, in this embodiment, the banana packaging bag 10 is a seal bag having the opening 12, and there are various methods for manufacturing the bag. For example, two synthetic resin films are overlapped. In a state or a state in which one synthetic resin film is folded, a bag is formed by fusing three or two sides by heat sealing, and an opening 12 that opens on one side is provided. A shape as a body is formed.

  In such a banana packaging bag 10, the banana 2 is placed in the bag through the opening 12, and the banana 2 is packaged by the banana packaging bag 10 by sealing the opening 12 with a tape or thermocompression bonding. Is done.

In the banana packaging bag 10 having such a configuration, according to the present invention, the open area ratio of the banana packaging bag (synthetic resin film) 10 is 7 × 10 ⁻⁴ % or more and 1.5 × 10 ⁻² % or less, and the banana. The surface area in the bag per 100 g is 100 cm ² or more and 600 cm ² or less.

  By providing such a fine hole 11, in the process of transporting the banana 2, it is possible to reliably prevent pests and the like from adhering to the banana 2 and to reduce the weight due to moisture removal. 2 can be accurately suppressed or prevented, and handling of the banana 2 can be facilitated.

  Further, in the process of ripening treatment, the holes 11 within such a range are fine but sufficiently allow the permeation of ethylene gas, so that the ethylene gas is reliably taken into the banana packaging bag 10. Can do. Therefore, the green banana 2 can be reliably colored yellow by the ripening process.

  Therefore, the banana-containing package 1 can be used for the process of transporting the banana 2 and the process of ripening treatment without opening the banana packaging bag 10.

  In addition, the banana packaging bag (synthetic resin film) 10 is provided with a plurality of holes 11 that are provided substantially uniformly throughout the synthetic resin film in plan view. Thereby, when the banana 2 is matured by the ripening process, ethylene gas can be uniformly supplied into the banana packaging bag 10 through the plurality of holes 11, so that the banana 2 in the bag is uniformly distributed. Can mature.

  The shape of the hole 11 provided in the banana packaging bag 10 is circular as shown in FIG. 1 in this embodiment, but is not limited to this case. For example, an ellipse, an ellipse, a triangle, a quadrangle, etc. Although a shape may be sufficient, a circular shape-an ellipse shape are preferable among them.

  It should be noted that the plurality of holes 11 are not limited to the case where the holes 11 are provided substantially uniformly throughout the entire surface of the synthetic resin film as in the present embodiment. You may be unevenly distributed in the center part in planar view of a film. With this configuration, when the banana 2 is matured by the ripening process, the ethylene gas can be more reliably supplied to the banana 2 through the plurality of holes 11.

  Furthermore, although the average hole diameter of the plurality of holes 11 is not particularly limited, it is preferably 50 μm or more and 500 μm or less, and more preferably 100 μm or more and 400 μm or less. As a result, it is possible to reliably prevent deterioration of freshness due to the attachment of pests and weight reduction, and it is possible to more reliably supply ethylene gas into the bag through the holes 11.

In addition, in the banana packaging bag (synthetic resin film) 10, the open area ratio may be 7 × 10 ⁻⁴ % or more and 1.5 × 10 ⁻² % or less, but 8 × 10 ⁻⁴ % or more, It is preferably 5 × 10 ⁻³ % or less.

Further, the bag surface area per banana 100g is, 100 cm ² or more, but may be any 600 cm ² or less, 150 cm ² or more, and preferably 300 cm ² or less. The reason why the inner surface area of the bag is defined is to prevent the sealing portion, ie, the binding margin, from being included in the calculation.

  When the hole area ratio and the surface area in the bag satisfy the above relationship, the banana packaging bag 10 exhibits the above-described effects more remarkably.

  Moreover, the average film thickness of a synthetic resin film is although it does not specifically limit, For example, Preferably it sets to 10 micrometers or more and 100 micrometers or less, More preferably, it sets to 20 micrometers or more and 40 micrometers or less. Thereby, it is possible to reliably prevent the banana packaging bag 10 from being scratched or damaged during the transportation process or the ripening process.

  In this case, the banana packaging bag (synthetic resin film) 10 is not particularly limited, but unstretched polypropylene, stretched polypropylene, polyethylene, polyvinyl chloride and the like are used, but in addition to these, films of polyamide, polyester, polycarbonate, etc., Or these composite films may be sufficient, Furthermore, even if what provided the sealant layer on these film surfaces, and the film which carried out the antifogging process, it does not interfere.

  In the present invention, banana 2 is preferably 750 g to 30 kg (5 to 200 bananas) / bag, more preferably 12 to 13 kg (80 to 90 bananas) by such banana packaging bag 10. ) / Packed in a bag.

  As mentioned above, although the banana packaging bag of this invention and the package body containing a banana were demonstrated about embodiment of illustration, this invention is not limited to these.

  For example, each part which comprises the banana packaging bag of this invention and a banana containing package can be substituted with the thing of the arbitrary structures which can exhibit the same function. Moreover, arbitrary components may be added.

  In addition, the banana packaging bag is not limited to the seal bag described in the above embodiment, and may be a bag in the form of a gusset bag, for example. The thing of the form packaged with a banana packaging bag may be sufficient.

  Hereinafter, specific examples of the present invention will be described. Note that the present invention is not limited to this.

1. Manufacture of banana packaging bags and banana packaging with banana packaging bags (Example 1)
A seal in which 108 substantially circular holes with an average hole diameter of 137 μm are formed in a packaging bag made of stretched polypropylene having an inner dimension of 250 mm × 350 mm and a thickness of 25 μm so that the open area ratio is 9.1 × 10 ⁻⁴ %. A bag (banana packaging bag) was prepared. After filling this banana packaging bag with five green (immature) bananas (weight 720 g), the opening was sealed to obtain a banana package.

(Example 2)
A seal in which 109 substantially circular holes having an average hole diameter of 179 μm are formed in a packaging bag made of stretched polypropylene having an inner dimension of 250 mm × 350 mm and a thickness of 25 μm so that the hole area ratio is 1.6 × 10 ⁻³ %. A bag (banana packaging bag) was prepared. After filling this banana packaging bag with five green (immature) bananas (weight 751 g), the opening was sealed to obtain a banana package.

(Example 3)
A seal in which 144 substantially circular holes having an average hole diameter of 156 μm are formed in a packaging bag made of stretched polypropylene having an inner dimension of 250 mm × 350 mm and a thickness of 25 μm so that the hole area ratio is 2.0 × 10 ⁻³ %. A bag (banana packaging bag) was prepared, and after filling this banana packaging bag with five green (immature) bananas (weight 768 g), the opening was sealed to obtain a banana package.

Example 4
A seal in which 2372 substantially circular holes with an average hole diameter of 163 μm are formed in a packaging bag made of stretched polypropylene with an inner dimension of 1000 mm × 990 mm and a thickness of 25 μm so that the hole area ratio is 2.5 × 10 ⁻³ %. A bag (banana packaging bag) was prepared, and 90 bananas (weight 13196 g) were filled in the banana packaging bag, and then the opening was sealed to obtain a banana package.

(Example 5)
A seal in which 273 substantially circular holes having an average hole diameter of 157 μm are formed in a packaging bag made of stretched polypropylene having an inner dimension of 250 mm × 350 mm and a thickness of 25 μm so that the opening area ratio is 3.0 × 10 ⁻³ %. A bag (banana packaging bag) was prepared. After filling this banana packaging bag with five green (immature) bananas (weight 724 g), the opening was sealed to obtain a banana package.

(Example 6)
A seal in which 238 substantially circular holes having an average hole diameter of 298 μm are formed in a packaging bag made of stretched polypropylene having an inner dimension of 250 mm × 350 mm and a thickness of 25 μm so that the hole area ratio is 9.5 × 10 ⁻³ %. A bag (banana packaging bag) was prepared. After filling this banana packaging bag with five green (immature) bananas (weight 753 g), the opening was sealed to obtain a banana package.

(Comparative Example 1)
A package made of stretched polypropylene with an inner dimension of 250 mm × 350 mm and a thickness of 25 μm is prepared as a banana wrapping bag. Was sealed to obtain a banana package.

(Comparative Example 2)
A seal in which 45 substantially circular holes with an average hole diameter of 80 μm are formed in a packaging bag made of stretched polypropylene having an inner dimension of 250 mm × 350 mm and a thickness of 25 μm so that the hole area ratio is 1.3 × 10 ⁻⁴ %. A bag (banana packaging bag) was prepared. After filling this banana packaging bag with five green (immature) bananas (weight 727 g), the opening was sealed to obtain a banana package.

(Comparative Example 3)
A seal in which an approximately circular hole having an average hole diameter of 6000 μm is formed in a packaging bag made of stretched polypropylene having an inner dimension of 250 mm × 350 mm and a thickness of 25 μm so that the hole area ratio is 1.6 × 10 ⁻² %. A bag (banana packaging bag) was prepared. After filling this banana packaging bag with five green (immature) bananas (weight 729 g), the opening was sealed to obtain a banana package.

(Comparative Example 4)
Seal bag (banana packaging) with 122 round holes with an average pore diameter of 6000 μm in a packaging bag made of stretched polypropylene with an inner dimension of 250 mm × 350 mm and a thickness of 25 μm so that the aperture area ratio is 2.0%. The banana packaging bag was filled with five green (immature) bananas (weight 733 g), and then the opening was sealed to obtain a banana package.

2. Banana transport and ripening treatment First, the banana-containing packages of each Example and each Comparative Example were stored for 17 days in an atmosphere of 15 ± 1 ° C., assuming a banana transport process (1 to 17). Day).

  Next, after rapidly raising the ambient temperature to 25 ° C., the bananas were left to stand for 24 hours in an atmosphere having an ethylene gas concentration of 200 ppm, thereby subjecting the bananas to a ripening treatment (18th day).

  Subsequently, after ventilating to air | atmosphere, it cooled gradually over 25 days from 25 degreeC to 18 degreeC (the 19th to 22nd day).

3. Evaluation About the banana-containing package of each Example and each Comparative Example, the color of the banana skin, skin discoloration, thirst cut, wilting, weight change rate after 10 days, 14 days, 17 days and 22 days from the start of storage, respectively. Was observed and evaluated according to the following evaluation criteria.

・ Evaluation criteria for banana skin color (after ripening)
Yellow: Good (In addition, it was judged as good when the whole was yellow and only both ends were green.)
Yellowish green: Fail
Green: Fail • Evaluation criteria for other items
○: Good
○ to △: Slightly good
Δ: Slightly bad
X: Fail These evaluation results are shown in Table 1.

  As is clear from the evaluation results shown in Table 1, in each example, the weight was not reduced when stored in an atmosphere of 15 ± 1 ° C. (1st to 17th day), assuming a transportation process. It can be preserved, and can be changed to yellow by passing through the ripening treatment on the 18th day, and is good for eating bananas even after the ripening treatment (19th to 22nd days). The state was maintained.

On the other hand, in each comparative example, the hole area ratio of the synthetic resin film is 7 × 10 ⁻⁴ % or more and 1.5 × 10 ⁻² % or less, and the surface area in the bag per 100 g of the banana is 100 cm. ² or more, due to not satisfy the conditions it is 600 cm ² or less, or cause weight loss during storage (1-17 days), may discolor the banana yellow ripening process (18 days) The result was not possible.

DESCRIPTION OF SYMBOLS 1 Package containing banana 2 Banana 10 Banana packaging bag 11 Hole 12 Opening

Claims (5)

A banana packaging bag that is used to wrap bananas and is composed of a synthetic resin film with holes,
The hole area ratio of the synthetic resin film is 7 × 10 ⁻⁴ % or more and 1.5 × 10 ⁻² % or less, and the surface area in the bag per 100 g of the banana is 100 cm ² or more and 600 cm ² or less. Banana packaging bag characterized by.   The banana packaging bag according to claim 1, wherein immature bananas are packaged.   The banana packaging bag according to claim 1 or 2, wherein a plurality of the holes are provided, and an average hole diameter of the holes is 50 µm or more and 500 µm or less.   The banana packaging bag according to any one of claims 1 to 3, wherein the holes are provided substantially uniformly throughout the synthetic resin film in a plan view.   A banana-containing package comprising the banana packaging bag according to any one of claims 1 to 4 and a banana packaged in the banana packaging bag.

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