JP5556949B1 - Vegetable and fruit packaging bag and fruit and vegetable packaging - Google Patents

Abstract

The present invention relates to a fruit and vegetable packaging bag that can be easily processed into a film and can maintain the freshness of fruits and vegetables by the MA effect without deterioration of the appearance of the film even after processing, and the fruit and vegetable packaging bag. To provide a fruit and vegetables package comprising fresh fruit and vegetables.
A packaging bag for fruits and vegetables 1 is used for packaging fruits and vegetables, and is formed into a bag shape by overlapping a first film 2 and a second film 3 made of a synthetic resin film. It is. The first film 2 and the second film 3 have one or more first openings 21 and second openings 31, respectively. The first opening 21 and the second opening 31 are In the thickness direction of the first film 2 and the second film 3, those formed at the closest positions respectively overlap each other.
[Selection] Figure 2

Description

  The present invention relates to a fruit and vegetable packaging bag and a fruit and vegetable packaging.

  Fruits and vegetables have moderate hypoxia and high carbon dioxide in the atmosphere, and respiration is suppressed to reduce deterioration and ripening. It is known that the deterioration of is promoted.

  In recent years, the practical use of the packaging which preserves the freshness of fruit and vegetables using this principle is progressing. This is the packaging of fruits and vegetables, and the gas concentration in the packaging is made suitable for the preservation of fruits and vegetables by the balance between the breathing rate of the fruits and vegetables and the gas permeation rate of the packaging material. This is called MA (Modified Atmosphere) packaging. It is.

  However, when a film such as polypropylene film or polyethylene film, which is usually used for packaging fruits and vegetables, is used as it is as a packaging bag, the fruits and vegetables are abnormal due to insufficient oxygen in the package due to insufficient gas permeation rate. Breathe and promote the deterioration of fruits and vegetables. Therefore, in order to make the oxygen transmission rate of the packaging bag suitable for the respiration rate of the packaged fruits and vegetables, it has been necessary to process fine holes and the like in the film.

  Therefore, for example, in Patent Document 1, by forming an infinite number of fine through or non-through holes with a hole diameter of several μm to several tens of μm in a multilayer film at least the innermost layer of which is a heat-fusible resin layer, A freshness-keeping packaging material for fruits and vegetables that controls the oxygen permeability of the multilayer film is described. However, in this method, because the film is innumerable scratched, the film becomes whitish and the transparency is lowered. However, a very special device is necessary to press the film against a special roll with diamond powder attached, and a very special device is required, and many kinds of films are produced in accordance with the respiration rate and characteristics of various fruits and vegetables. It was difficult.

  Accordingly, there is a need for the development of a fruit and vegetable packaging bag that is easy to process, has an oxygen transmission rate that matches the respiration rate of the fruits and vegetables, and that can realize MA packaging that does not deteriorate the appearance of the film.

JP-A-9-252718

  An object of the present invention is to provide a fruit and vegetable packaging bag that can be easily processed into a film, and can maintain the freshness of fruits and vegetables by the MA effect without deteriorating the appearance of the film even if the film is processed, and the fruit and vegetable packaging bag. The object is to provide a fruit and vegetables package comprising the fruit and vegetables packaged in the box.

Such an object is achieved by the present inventions (1) to (6) below.
(1) A packaging bag for fruits and vegetables, which is used for packaging fruits and vegetables and is formed into a bag shape by overlapping the first and second films made of synthetic resin film,
The first film and the second film each have one or more first openings and second openings,
In the thickness direction of the first film and the second film, each of the first opening and the second opening is at least partially formed by the closest positions. Overlap ,
The first opening has an elongated shape, and the second opening has an elongated shape formed in a direction intersecting the longitudinal direction of the first opening. Packaging bags.

  (2) The fruit and vegetable packaging bag according to (1), wherein the first opening and the second opening have the same shape and size.

(3) The fruit and vegetable packaging bag according to (1), wherein the first opening and the second opening have different sizes.

(4) The first film has a plurality of the first openings, and the size of the plurality of first openings increases as the distance from the center of the first film increases.
The second film has a plurality of the second openings, the size of the second opening of said plurality of, to have increased above (1) as the distance from the center of the second film The packaging bag for fruits and vegetables according to any one of (3) .

(5) The first film has a plurality of the first openings, and the arrangement density of the plurality of first openings is increased as the distance from the center of the first film increases.
The second film has a plurality of the second openings, the density of arrangement of the second opening of the plurality of is higher as the distance from the center of the second film (1) The packaging bag for fruits and vegetables of any one of thru | or (4) .

(6) A fruit and vegetables package comprising the fruit and vegetable packaging bag according to any one of (1) to (5 ) above and the fruit and vegetables packaged in the fruit and vegetable packaging bag.

  According to the present invention, even when the fruits and vegetables are packaged, the first and second openings are prevented or reduced from being blocked by the fruits and vegetables, and the air permeability is excellent. Thereby, for example, an oxygen permeation rate and a carbon dioxide permeation rate adapted to characteristics such as the respiration rate of fruits and vegetables can be realized. As a result, the packaging bag for fruits and vegetables can maintain the oxygen concentration and carbon dioxide concentration suitable for storage of fruits and vegetables. That is, MA (Modified Atmosphere) packaging can be realized. Further, since MA packaging can be realized, that is, the MA effect can be obtained, the freshness of fruits and vegetables can be maintained.

  Moreover, according to this invention, the 1st opening part and 2nd opening part which are formed in the position nearest in the thickness direction have overlapped. Thereby, it is difficult to visually recognize the second opening from the first film side in a state where the fruits and vegetables are not yet wrapped in the fruit and vegetable packaging bag, and thus the appearance of the first film is deteriorated. Can be prevented. Moreover, it becomes difficult to visually recognize the 1st opening part from the 2nd film side, Therefore It can prevent that the appearance of the said 2nd film worsens.

  In addition, the first opening formed at the closest position and the second opening overlap each other, thereby processing the first opening in the first film in the manufacturing process of the packaging bag, When processing the second opening in the second film, the first film and the second film before processing can be overlapped and the processing can be performed collectively. Thereby, the process to a 1st film and a 2nd film becomes easy.

It is a top view which shows 1st Embodiment at the time of using the packaging bag for fruit and vegetables of this invention as an example of the fruit and vegetable package of this invention for the packaging of a banana. It is a perspective view which shows the unwrapped state of the packaging bag for fruits and vegetables in FIG. It is a top view which shows 2nd Embodiment of the packaging bag for fruit and vegetables (unpacked state) of this invention. It is a cross-sectional view (AA line sectional view in FIG. 3) which shows the display state of the fruit and vegetable package which packaged the banana with the packaging bag for fruit and vegetables shown in FIG. It is a top view which shows 3rd Embodiment of the packaging bag for fruit and vegetables (unpacked state) of this invention. It is a top view which shows 4th Embodiment of the packaging bag for fruit and vegetables (unpacked state) of this invention. It is a top view which shows 5th Embodiment of the packaging bag for fruit and vegetables (unpacked state) of this invention. It is a cross-sectional view (BB sectional drawing in FIG. 7) which shows the display state of the fruit and vegetables package which packaged the banana with the fruit and vegetable packaging bag shown in FIG.

  Hereinafter, the packaging bag for fruit and vegetables and the fruit and vegetables packaging body of this invention are demonstrated in detail based on suitable embodiment shown to an accompanying drawing.

<First Embodiment>
FIG. 1 is a plan view showing a first embodiment when the fruit and vegetable packaging bag of the present invention is used for banana packaging as an example of the fruit and vegetable packaging body of the present invention, and FIG. 2 is a fruit and vegetable packaging bag in FIG. It is a perspective view which shows the unwrapped state. In FIG. 1 and FIG. 2 (the same applies to FIGS. 3 to 8), for convenience of explanation, the vent holes of the fruit and vegetable packaging bag are exaggerated, and the size of the vent holes with respect to the entire fruit and vegetable packaging bag The ratio and its ratio are very different from the actual one. Moreover, the packaging bag for fruits and vegetables is rectangular in plan view, and the direction along the short side is described as the x direction and the direction along the long side is described as the y direction. Moreover, the direction orthogonal to the x direction and the y direction is referred to as the thickness direction of the packaging bag for fruits and vegetables (first film and second film).

  As shown in FIG. 1, a packaging bag for fruits and vegetables (hereinafter simply referred to as “packaging bag”) 1 of the present invention is used for packaging fruits and vegetables in a sealed state in the bag. The fruit and vegetable package (hereinafter simply referred to as “packaging”) 10 includes a packaging bag 1 and fruits and vegetables packaged in a sealed state with the packaging bag 1. Hereinafter, the state in which the fruits and vegetables are not yet wrapped in the packaging bag 1 is referred to as “unwrapped state”, and the state in which the fruits and vegetables are packaged in the packaging bag 1 is referred to as “packed state”.

  The fruits and vegetables are banana B in the present embodiment, but are not limited thereto. For example, fruits such as mango, ume, apple, strawberry, mandarin orange, grape, Japanese pear, pear, radish, carrot, Chinese yam Root vegetables such as burdock, tomato, cucumber, eggplant, peppers, green beans, fruit vegetables such as okra, sprout such as mung bean sprout, soy bean sprout, cypress, shiitake mushroom, shimeji mushroom, eryngii Examples include fungi (mushrooms), broccoli, spinach, komatsuna, chinensai, lettuce, leafy vegetables such as asparagus, chrysanthemum, lilies, carnations, etc. The packaging bag 1 can be used for packaging.

  The packaging bag 1 is used to wrap the banana B, and is formed into a bag shape by overlapping the first film 2 and the second film 3 made of synthetic resin film. This is a seal bag having an opening 11 serving as a mouth. The packaging bag 1 having the configuration shown in FIG. 1 has a maximum volume that is large enough to accommodate one bunch of bananas B.

  There are various methods for producing such a packaging bag 1, and it is not particularly limited. For example, in a state in which two synthetic resin films are overlaid or in a state in which one synthetic resin film is overlaid, By forming a bag by fusing three or two sides with a heat seal and providing an opening 11 that opens on one side, a shape as a bag is formed. In addition, it is preferable that the packaging bag 1 manufactured in this way makes a rectangle by the planar view. Moreover, it is preferable that the opening part 11 is located in ay direction.

  In addition, when the packaging bag 1 is produced by superimposing two synthetic resin films, the first film 2 and the second film 3 are constituted by these two synthetic resin films. Moreover, when producing the packaging bag 1 by folding up one synthetic resin film, the 1st film 2 and the 2nd film 3 are comprised by the folded synthetic resin film.

  The material of such a synthetic resin film is not particularly limited. For example, polyethylene, polypropylene, polyethylene terephthalate, polystyrene, nylon (polyamide), ethylene vinyl acetate copolymer (EVA), polybutylene succinate, polybutylene succin. Examples thereof include nate adipate and polylactic acid. The synthetic resin film may be a semi-synthetic resin film, and examples of the material include cellophane. Any one of these materials may be used alone or laminated. The packaging bag 1 may be a bag in which these films and metal foil, paper or nonwoven fabric are bonded together.

  The first film 2 and the second film 3 may be subjected to stretching, anti-fogging or printing, and may be inorganic antibacterial agents such as silver and copper, chitin, chitosan and allyl. An organic antibacterial agent such as isothiocyanate may be applied, or these may be kneaded in a film.

  In the packaging bag 1 having such a configuration, the banana B is disposed in the bag through the opening 11, and then the banana B is packaged by the packaging bag 1 by sealing the opening 11.

  In addition, it does not specifically limit as a sealing method which seals the opening part 11, For example, the method of binding the opening part 11 with a metal or resin, tying a rubber band, a tape, a zipper etc., or attaching an opening part, or thermocompression bonding (Heat seal) and the like.

  Furthermore, when using the 1st film 2 and the 2nd film 3 which are not suitable for heat sealing, what is necessary is just to form by laminating or coating the sealant layer in the opening part 11. FIG. For example, a cellophane film coated with an acrylic resin and a film obtained by laminating polyethylene terephthalate (PET) with linear low density polyethylene (LLDPE) polystyrene and EVA are used as the first film 2 and the second film 3. be able to.

  The packaging of the banana B by the packaging bag 1 is performed after the harvesting of the banana B, and after being transported in the state of the package 10, it is displayed and sold in a market or a mass retailer.

  As shown in FIG. 2, the first film 2 has a plurality of first openings (first through holes) 21 penetrating in the thickness direction, and the second film 3 has a thickness thereof. A plurality of second openings (second through holes) 31 penetrating in the vertical direction are provided. Thereby, the packaging bag 1 exhibits oxygen permeability and carbon dioxide permeability. Thus, in the packaging bag 1, the 1st opening part 21 and the 2nd opening part 31 each function as a vent hole through which air passes.

  In the present embodiment, the first openings 21 are arranged in four rows at equal intervals along the x direction, and are arranged in four rows at equal intervals along the y direction. Note that the distance between the centers of the first openings 21 adjacent in the x direction and the distance between the centers of the first openings 21 adjacent in the y direction may be the same or different. Also good. Then, the first openings 21 arranged in a matrix in this way are respectively referred to as “first opening 21a”, “first opening 21b”, “first” in order from the lower left in FIG. 1 opening 21c ”,“ first opening 21d ”,“ first opening 21e ”,“ first opening 21f ”,“ first opening 21g ”,“ first opening 21h ” "," First opening 21i "," first opening 21j "," first opening 21k "," first opening 21L "," first opening 21m "," first 21n ”,“ first opening 21o ”, and“ first opening 21p ”. Each first opening 21 has a long shape extending linearly in the y direction, and has the same length and the same width.

  The second openings 31 are also arranged in four rows at equal intervals along the x direction and in four columns at equal intervals along the y direction. The center-to-center distance between the second openings 31 adjacent in the x direction is the same as the center-to-center distance between the first openings 21 adjacent in the x direction. The center-to-center distance between the second openings 31 adjacent in the y direction is the same as the center-to-center distance between the first openings 21 adjacent in the y direction. Then, the second openings 31 arranged in a matrix form in this way are respectively “second opening 31a”, “second opening 31b”, “first” in order from the lower left in FIG. 2 opening 31c ”,“ second opening 31d ”,“ second opening 31e ”,“ second opening 31f ”,“ second opening 31g ”,“ second opening 31h ” "," Second opening 31i "," second opening 31j "," second opening 31k "," second opening 31L "," second opening 31m "," second May be referred to as “second opening 31n”, “second opening 31o”, and “second opening 31p”. Each second opening 31 has the same shape and size as the first opening 21. That is, each of the second openings 31 has a long shape extending linearly in the y direction, and the length and width thereof are the same as those of the first opening 21.

  By making each first opening 21 and each second opening 31 have such an arrangement, shape and size, respectively, as shown in FIG. 2, in the unwrapped state, the thickness direction of the packaging bag 1 The first opening 21a and the second opening 31a formed at the nearest position overlap each other. Similarly, the entire first opening 21b and the second opening 31b overlap, the entire first opening 21c and the second opening 31c overlap, and the first opening 21d The entire second opening 31d overlaps, the entire first opening 21e and the second opening 31e overlap, the entire first opening 21f and the second opening 31f overlap, The entire first opening 21g and the second opening 31g overlap, the entire first opening 21h and the second opening 31h overlap, and the first opening 21i and the second opening 31i overlaps, the first opening 21j and the second opening 31j overlap, the first opening 21k and the second opening 31k overlap, and the first opening The entire 21L and the second opening 31L overlap, and the first opening 21m and the second opening 31 are overlapped. And the first opening 21n and the second opening 31n overlap, the first opening 21o and the second opening 31o overlap, and the first opening 21p. And the entire second opening 31p overlap.

  And depending on the size of the whole banana B in one bunch and the size and arrangement of each banana B, in a packaged state, for example, as shown in FIG. When the banana B is not interposed between the opening 31a, air can easily pass through the opening. In addition, as shown in FIG. 1, even if the banana B is partially interposed between the first opening 21e and the second opening 31e, the first opening 21e and the second opening 31e. Since each of them has a long shape, it is reduced that the whole is blocked by the banana B, and therefore air can easily pass through the opening. Thus, the packaging bag 1 is excellent in air permeability even in the packaged state. Thereby, the oxygen permeation rate and the carbon dioxide permeation rate in accordance with characteristics such as the respiration rate of the banana B can be realized. As a result, the packaging bag 1 can maintain an oxygen concentration and a carbon dioxide gas concentration suitable for storage of the banana B. That is, MA (Modified Atmosphere) packaging can be realized. Further, since MA packaging can be realized, that is, the MA effect can be obtained, the freshness of the banana B can be maintained.

  In addition, although the oxygen concentration in the inside of the packaging bag 1 depends on the fruits and vegetables to be packaged, it is generally 0.04 to 19%, and the carbon dioxide concentration is preferably 2 to 26%. More preferably, the oxygen concentration is 0.1 to 10%, and the carbon dioxide concentration is 5 to 15%. If the oxygen concentration is less than the lower limit value or the carbon dioxide (carbon dioxide) concentration exceeds the upper limit value, depending on the type of fruits and vegetables to be packaged, the fruits and vegetables may cause a gas failure and deteriorate due to odor, troquet, internal browning, etc. May be more likely to occur. On the other hand, when the oxygen concentration exceeds the upper limit value or the carbon dioxide concentration is less than the lower limit value, the respiratory effect of fruits and vegetables tends to be reduced, and the fruits and vegetables need to be wrapped for a long time. And the like may cause yellowing prevention, browning prevention, content component reduction, and the like.

  In addition, for example, the first film 2 is a printing surface on which a printed matter such as a trade name, a production area, a producer, and a price is printed, and the second film 3 is a non-printing surface on which no printed matter is printed. In some cases, the package 10 having such a configuration is usually displayed with the first film 2 (printing surface) as the upper side and the second film 3 (non-printing surface) as the lower side. Therefore, oxygen is mainly transmitted from the first openings 21 of the first film 2 located on the upper side, and carbon dioxide gas is mainly transmitted from the second openings 31 of the second film 3 located on the lower side. Will be.

  The length L of the first opening 21 and the second opening 31 is preferably 0.01 mm or more and 12 mm or less, more preferably 0.05 mm or more and 8 mm or less, and the width w is preferably It is 0.001 mm or more and 25 mm or less, More preferably, it is 0.01 mm or more and 1 mm or less. If the upper limit is exceeded, the first film 2 and the second film 3 may be deformed depending on the types of the first film 2 and the second film 3 and the thickness thereof. Since the opening 21 and the second opening 31 are easy to open, it may be difficult to control the oxygen transmission rate and the carbon dioxide transmission rate. Moreover, when it is less than the said lower limit, it will be necessary to form many 1st opening parts 21 and 2nd opening parts 31, As a result, the kind of 1st film 2 and 2nd film 3, and those Depending on the thickness, the processing becomes difficult and the packaging bag 1 may not be suitable for mass production.

  Furthermore, when each total of the length with respect to banana B100g packaged in the packaging bag 1 in the first film 2 and the second film 3 is ΣL (100 g), respectively, the ΣL (100 g) is The thickness is preferably 0.005 mm or more and 50 mm or less, and more preferably 0.3 mm or more and 30 mm or less. If it is less than the lower limit, depending on the thickness of the first film 2 and the second film 3, the packaged banana B is in an oxygen deficient (anaerobic) state, and a strange odor is generated due to troquet (floating) or alcoholic fermentation. There is a risk that deterioration such as the above is likely to occur. On the other hand, if the upper limit is exceeded, depending on the thickness of the first film 2 and the second film 3, the inside of the packaging bag 1 does not have a sufficiently low oxygen concentration and high carbon dioxide concentration, There is a possibility that a remarkable freshness maintaining effect (MA effect) may not be obtained. In the package 10, the banana B is preferably packaged at a rate of about 50 g to 1200 g / bag, more preferably about 100 g to 450 g / bag.

  Moreover, the thickness of the 1st film 2 and the 2nd film 3 may be the same, and may differ, but it is preferable that it is 0.01 mm or more and 0.1 mm or less. It is more preferable that it is 01 mm or more and 0.065 mm or less. By setting the thickness within the above range, oxygen and carbon dioxide gas can be reliably transmitted from the first opening 21 and the second opening 31 included in each. Moreover, when it becomes less than the said lower limit, there exists a possibility that intensity | strength may not fully be obtained depending on the material of a film. Furthermore, if the upper limit is exceeded, the cost may increase.

  As described above, in the first film 2, the plurality of first openings 21 are arranged in a matrix. Thereby, the plurality of first openings 21 appear to be aligned, and accordingly, it is possible to accurately prevent the appearance of the first film 2 on which the processing of the first openings 21 has been performed from being deteriorated. be able to. Moreover, it can prevent exactly that the appearance of the 1st film 2 deteriorates also by forming the formation direction of each 1st opening part 21 being uniform.

  Similar to the first film 2, the second film 3 also has a plurality of second openings 31 arranged in a matrix. Thereby, the plurality of second openings 31 also appear to be aligned, and thus it is possible to accurately prevent the appearance of the second film 3 on which the processing of the second openings 31 has been performed. be able to. Moreover, it can prevent exactly that the appearance of the 2nd film 3 worsens also by the formation direction of each 2nd opening part 31 being uniform.

  Moreover, the 1st opening part 21 and the 2nd opening part 31 currently formed in the position nearest in the thickness direction of the packaging bag 1 have overlapped completely. As a result, the first opening 21 and the second opening 31 that are actually visually recognized in an unwrapped state are the sum of the number of first openings 21 and the number of second openings 31 formed. The number of first openings 21 (or the number of second openings 31) is equal to the number of first openings 21. Therefore, it can prevent that the appearance as the packaging bag 1 whole worsens.

  The processing of the first opening 21 in the first film 2 and the processing of the second opening 31 in the second film 3 are performed by cutting with a sharp blade such as a cutter. Alternatively, it may be performed by punching with a mold capable of cutting a desired shape. In addition, it can be formed by laser processing.

  The processing time of the first opening 21 and the second opening 31 is not particularly limited, and even after the first film 2 and the second film 3 are overlapped to form a bag shape. Although it may be before the 1st film 2 and the 2nd film 3 are overlap | superposed, in this embodiment, it is preferable that it is the former time. In this case, the first opening 21 and the second opening 31 having the above-described arrangement, shape, and size can be formed collectively. Accordingly, when the first opening 21 is processed in the first film 2 and the second opening 31 is processed in the second film 3 in the manufacturing process of the packaging bag 1, the processing is easily and quickly performed. Can be done.

<Second Embodiment>
FIG. 3 is a plan view showing a second embodiment of the fruit and vegetable packaging bag (unwrapped state) according to the present invention, and FIG. 4 shows the state of display of the fruit and vegetable packaging body in which bananas are wrapped in the fruit and vegetable packaging bag shown in FIG. It is a cross-sectional view (AA sectional view in FIG. 3) shown.

  Hereinafter, the second embodiment of the fruit and vegetable packaging bag and the fruit and vegetable packaging body of the present invention will be described with reference to these drawings. However, the difference from the above-described embodiment will be mainly described, and the same matters will be described. Is omitted.

  This embodiment is the same as the first embodiment except that the magnitude relationship between the first opening and the second opening is different.

  As shown in FIG. 3, in the packaging bag 1 of this embodiment, each 1st opening part 21 and each 2nd opening part 31 are mutually different in magnitude | size. Specifically, in the packaging bag 1, in the plan view, the first opening 21a is included in the second opening 31a, the first opening 21b is included in the second opening 31b, One opening 21c is included in the second opening 31c, the first opening 21d is included in the second opening 31d, the first opening 21e is included in the second opening 31e, The first opening 21f is included in the second opening 31f, the first opening 21g is included in the second opening 31g, and the first opening 21h is included in the second opening 31h. The first opening 21i is included in the second opening 31i, the first opening 21j is included in the second opening 31j, and the first opening 21k is included in the second opening 31k. The first opening 21L is included in the second opening 31L, and the first opening 21m is the second opening The first opening 21n is included in the second opening 31n, the first opening 21o is included in the second opening 31o, and the first opening 21p is the second. The size relationship between the first opening 21 and the second opening 31 is defined so as to be included in the opening 31p.

  When the packaging bag 1 having such a magnitude relationship is displayed on the display stand 20 as shown in FIG. 4, the first film 2 can be the upper side and the second film 3 can be the lower side. In this case, in the second film 3, for example, the second opening 31b and the second opening 31c are closed by the display stand 20, but the second opening 31a and the second opening 31d are closed. Avoid being peeled off. Similar to the second opening 31b and the second opening 31c, the second opening 31a and the second opening 31d are openings having a large size. Thus, the second opening 31a and the second opening 31d can supplement the blocked portion, and thus ensure the air permeability on the second film 3 side. it can. Such a configuration contributes to maintaining the freshness of banana B by the MA effect.

<Third Embodiment>
FIG. 5: is a top view which shows 3rd Embodiment of the packaging bag for fruit and vegetables (unpacked state) of this invention.

  Hereinafter, a third embodiment of the fruit and vegetable packaging bag and the fruit and vegetable packaging body of the present invention will be described with reference to this figure. However, the description will focus on the differences from the above-described embodiment, and the same matters will be described. Omitted.

  This embodiment is the same as the first embodiment except that the formation direction of the second opening is different.

  As shown in FIG. 5, in the packaging bag 1 of this embodiment, each 2nd opening part 31 is each formed along the direction which cross | intersects the 1st opening part 21, ie, the x direction. Thereby, the central portions of the first opening portion 21a and the second opening portion 31a overlap each other, the central portions in the longitudinal direction of the first opening portion 21b and the second opening portion 31b overlap each other, and the first opening portion 21a and the second opening portion 31b overlap each other. The central portions of the opening portion 21c and the second opening portion 31c overlap each other, the central portions of the first opening portion 21d and the second opening portion 31d overlap, and the first opening portion 21e and the second opening portion 31c overlap each other. The central portions of the opening 31e overlap, the central portions of the first opening 21f and the second opening 31f overlap, and the central portions of the first opening 21g and the second opening 31g. Overlap, the central portions of the first opening 21h and the second opening 31h overlap, the central portions of the first opening 21i and the second opening 31i overlap, and the first opening The central portions of 21j and the second opening 31j overlap with each other, and the first opening 21k and the second opening 31j The central portions of the opening 31k overlap, the central portions of the first opening 21L and the second opening 31L overlap, and the central portions of the first opening 21m and the second opening 31m. Overlap, the central portions of the first opening 21n and the second opening 31n overlap, and the central portions of the first opening 21o and the second opening 31o overlap.

  And in the crossing part 12 where the central parts of each opening part overlap each other, the passage of air is easier than others, but as in the first embodiment, the first opening part 21 and the second opening part It becomes lower than the case where the whole with the opening part 31 has overlapped. Such a configuration is effective when it is desired to suppress air permeability.

<Fourth embodiment>
FIG. 6: is a top view which shows 4th Embodiment of the packaging bag for fruit and vegetables (unpacked state) of this invention.

  Hereinafter, the fourth embodiment of the fruit and vegetable packaging bag and the fruit and vegetable packaging body of the present invention will be described with reference to this figure. However, the difference from the above-described embodiment will be mainly described, and the same matters will be described. Omitted.

  This embodiment is the same as the first embodiment except that the sizes of the first opening and the second opening are different.

  As shown in FIG. 6, in the packaging bag 1 of the present embodiment, the size of each first opening 21 increases stepwise as the distance from the center 22 of the first film 2 increases. As a result, the first openings 21f, 21g, 21j, and 21k located around the center 22 are the smallest, and an area for printing, for example, the name “banana” of fruit and vegetables can be secured in the vicinity of the center 22 accordingly. .

  In the configuration shown in FIG. 6, each first opening 21 has a width in the x direction that increases as the distance from the center 22 of the first film 2 increases, and the length in the y direction is constant. However, the length in the y direction may be increased as the distance from the center 22 of the first film 2 increases.

  Moreover, it is preferable that the size of each second opening 31 also increases stepwise as the distance from the center of the second film 3 increases. Thereby, the area | region which affixes labels, such as a production area of a banana, can be ensured also to the 2nd film 3, for example.

<Fifth Embodiment>
FIG. 7 is a plan view showing a fifth embodiment of the fruit and vegetable packaging bag (unpacked state) of the present invention, and FIG. 8 shows the state of display of the fruit and vegetable packaging body in which bananas are packaged by the fruit and vegetable packaging bag shown in FIG. It is a cross-sectional view shown (BB cross-sectional view in FIG. 7).

  Hereinafter, the fifth embodiment of the fruit and vegetable packaging bag and the fruit and vegetable packaging body of the present invention will be described with reference to these drawings. However, the difference from the above-described embodiment will be mainly described, and the same matters will be described. Is omitted.

  This embodiment is the same as the first embodiment except that the arrangement density of the first opening and the second opening is different.

  As shown in FIG. 7, in the packaging bag 1 of this embodiment, the disposition density of the first openings 21, that is, the distance between the centers of the adjacent first openings 21 in the x direction is the first. The height increases as the distance from the center 22 of the film 2 increases. In addition, although the center distance of the y direction of adjacent 1st opening parts 21 is constant, it may become high as it distances from the center 22 of the 1st film 2. As shown in FIG. Thereby, the area | region which prints the name "banana" of fruit and vegetables, for example in the center 22 vicinity can fully be ensured.

  As shown in FIG. 8, when the packaging bag 1 is displayed on the display stand 20, the first film 2 printed with “banana” is the upper side, and the second film 3 on the opposite side is the lower side. be able to. In this case, in the second film 3, the central portion 32 in the x direction may come into contact with the display stand 20. In the packaging bag 1, the arrangement density of the second openings 31 also increases as the distance from the center of the second film 3 increases. Thereby, each 2nd opening part 31 can be spaced apart from the center part 32, and it can be prevented from being blocked | closed by the display stand 20 as much as possible, and air permeability on the 2nd film 3 side is ensured. Can do.

  As mentioned above, although illustrated embodiment of the packaging bag for fruits and vegetables and fruit and vegetables of the present invention was illustrated, the present invention is not limited to this, and each part which constitutes the packaging bag for fruits and vegetables and the fruit and vegetables packaging body, It can be replaced with any structure capable of performing the same function. Moreover, arbitrary components may be added.

  Moreover, the packaging bag for fruits and vegetables and the fruit and vegetable package of the present invention may be a combination of any two or more configurations (features) of the above embodiments.

  In addition, the 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 bag may be sufficient.

  In addition, the number of first openings that the first film has and the number of second openings that the second film has are plural in each of the above embodiments, but are not limited thereto. For example, it may be one.

  In addition, the shapes of the first opening and the second opening are each linear in each of the embodiments described above, but are not limited thereto, and are, for example, S-shaped, U-shaped, and semicircular. A shape having a curved portion such as a wave shape, a shape having a corner portion such as a V shape, an X shape, an L shape, an H shape, a T shape, a W shape, or a U shape. Also good.

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

Examination of packaging bags when bananas are packaged as fruits and vegetables Production of packaging bag for fruits and vegetables and packaging of fruits and vegetables by packaging bag for fruits and vegetables (Example 1)
After folding a biaxially stretched polypropylene film having a thickness of 0.04 mm subjected to anti-fogging processing, two opposing sides were fused by heat sealing to produce a packaging bag having an inner size of 130 × 280 mm. Then, the packaging film is provided with 16 first openings in the first film by pressing the design knife at 16 locations from the first film side with the first film facing upward. Sixteen second openings were provided in the second film. Thereby, the packaging bag shown in FIG. 2 in which the first opening and the second opening are overlapped (matched) as a whole was obtained.

  Then, a package of Example 1 was obtained by putting about 250 g of Ecuadorian banana (green chip state) into this bag and sealing the opening with heat seal.

(Example 2)
When forming the first opening in the first film and forming the second opening in the second film, an aluminum plate is interposed between the first film and the second film. In this state, 16 design openings are provided in the first film by pressing the design knife at 16 positions from the first film side, and 16 design knives are provided from the second film side. Sixteen second openings were provided in the second film by pressing in place. Thereby, the packaging bag in which the 1st opening part was included in the 2nd opening part shown in FIG. 3 was obtained. Except this, it carried out similarly to the said Example 1, and obtained the package of Example 2.

(Example 3)
When forming the first opening in the first film and forming the second opening in the second film, an aluminum plate is interposed between the first film and the second film. In this state, 16 design openings are provided in the first film by pressing the design knife at 16 locations from the first film side, and 90 design knives are provided from the second film side. The second film was provided with sixteen second openings by rotating at a predetermined angle and pressing at 16 locations. Thereby, the packaging bag which the center part of the 1st opening part and the 2nd opening part shown in FIG. 5 overlapped was obtained. Except this, it carried out similarly to the said Example 1, and obtained the package of Example 3.

(Example 4)
When the first opening is formed in the first film and the second opening is formed in the second film, the first film side with the first film facing upward From this, the design knife is pressed at one place with a stronger force than in the case of Example 1, thereby providing one first opening in the first film and one in the second film. A second opening was provided. Except this, it carried out similarly to the said Example 1, and obtained the package of Example 4 with which the whole 1st opening part and 2nd opening part overlapped.

(Example 5)
When the first opening is formed in the first film and the second opening is formed in the second film, the first film side with the first film facing upward Then, the design knife was pressed at four locations, thereby providing four first openings in the first film and four second openings in the second film. Except this, it carried out similarly to the said Example 1, and obtained the package of Example 5 with which the whole 1st opening part and 2nd opening part overlapped.

(Example 6)
When the first opening is formed in the first film and the second opening is formed in the second film, the first film side with the first film facing upward The design knife was pressed at six locations, thereby providing six first openings in the first film and six second openings in the second film. Except this, it carried out similarly to the said Example 1, and obtained the package of Example 6 with which the whole 1st opening part and 2nd opening part overlapped.

(Comparative Example 1)
When forming an opening in the film, an aluminum plate is inserted between the first film and the second film, and in this state, a design knife is pressed at four locations from the first film side. In the same manner as in Example 1 except that four first openings are provided in the first film and the formation of the second openings in the second film is omitted. A package was obtained.

2. Storage of Banana B The fruit and vegetable packages of each Example and Comparative Example were each stored at 20 ° C. for 5 days in a state where the first film was placed on the flat plate.

3. Evaluation For the fruit and vegetable packages of each Example and Comparative Example, L1, w1, L2, w2, ΣL1 (100 g), ΣL2 (100 g), and the x direction between adjacent openings in the first and second films, respectively. The center-to-center distance and the center-to-center distance in the y direction between adjacent openings were measured, and the oxygen concentration (%) and carbon dioxide concentration (%) in the package after 5 days were measured.

  Furthermore, about the fruit and vegetables package of each Example and the comparative example, the external appearance, color tone, taste, smell, etc. of the fruit and vegetables in the package after 5 days were observed, respectively, and evaluated according to the evaluation criteria shown below.

·Evaluation criteria
: Good
○: Slightly good
Δ: Bad
X: Remarkably bad Table 1 shows the evaluation results.

  As is clear from Table 1, in each example, it was possible to maintain a moderately low oxygen and high carbon dioxide environment than the atmosphere, resulting in reduced banana deterioration and ripening. .

  In each example, L1, w1, L2, w2, ΣL1 (100g), ΣL2 (100g), the distance between the centers of adjacent openings in the x direction, and the distance between the centers of adjacent openings in the y direction. It was possible to further reduce the deterioration and ripening of the banana by setting the value to an appropriate range.

  In each example, L1, w1, L2, w2, ΣL1 (100g), ΣL2 (100g), the distance between the centers of adjacent openings in the x direction, and the distance between the centers of adjacent openings in the y direction. Even when the same evaluation as described above was performed, the result was good or slightly good.

  Moreover, even if the packaging bag shown in FIG. 6 and FIG. 7 was manufactured and evaluated in the same manner as described above, the result was good or slightly good.

  In each Example, even when other fruits and vegetables were used as the fruits and vegetables, the results were good or slightly good.

10 Fruit and vegetable packaging (packaging)
1 Packaging bag for fruits and vegetables (packaging bag)
11 opening part 12 crossing part 2 1st film 21, 21a, 21b, 21c, 21d, 21e, 21f, 21g, 21h, 21i, 21j, 21k, 21L, 21m, 21n, 21o, 21p 1st opening part ( First through hole)
22 Center 3 Second film 31, 31a, 31b, 31c, 31d, 31e, 31f, 31g, 31h, 31i, 31j, 31k, 31L, 31m, 31n, 31o, 31p Second opening (second penetration) Hole)
32 Central part B Banana 20 Display stand

Claims (6)

A packaging bag for fruits and vegetables, which is used for packaging fruits and vegetables and is formed into a bag shape by superimposing first and second films composed of synthetic resin films,
The first film and the second film each have one or more first openings and second openings,
In the thickness direction of the first film and the second film, each of the first opening and the second opening is at least partially formed by the closest positions. Overlap ,
The first opening has an elongated shape, and the second opening has an elongated shape formed in a direction intersecting the longitudinal direction of the first opening. Packaging bags.   The fruit and vegetable packaging bag according to claim 1, wherein the first opening and the second opening have the same shape and size.   The packaging bag for fruits and vegetables according to claim 1, wherein the first opening and the second opening have different sizes. The first film has a plurality of the first openings, and the size of the plurality of first openings increases as the distance from the center of the first film increases.
The second film has a plurality of the second openings, the size of the second opening of the plurality of the claims 1 becomes larger as the distance from the center of the second film 3 The packaging bag for fruits and vegetables according to any one of the above. The first film has a plurality of the first openings, and the arrangement density of the plurality of first openings is increased as the distance from the center of the first film increases.
The second film has a plurality of the second openings, the density of arrangement of the second opening of the plurality of the claims 1 becomes higher as the distance from the center of the second film 5. The fruit and vegetable packaging bag according to any one of 4 above. A fruit and vegetables package comprising the fruit and vegetable packaging bag according to claim 1 and the fruit and vegetables packaged in the fruit and vegetable packaging bag.

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