Quantity determination method
By setting the oxygen permeability of the top and bottom packaging bags in a certain proportion in the packaging box, the problem of freshness reduction caused by compaction of the packaging bag holes in the prior art is solved, and effective preservation of fruits and vegetables is achieved.
Patent Information
- Application Number
- JP2018206106
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2018-10-31
- Publication Date
- 2025-04-14
- Estimated Expiration
- 2038-10-31
AI Technical Summary
In the prior art, during the transportation and display of fruits and vegetables, the holes in the packaging bag are compacted, resulting in a decrease in oxygen permeability, which makes the fruits and vegetables unable to effectively maintain the freshness of fruits and vegetables.
By setting the oxygen permeability of the top and bottom bags in a certain proportion in the packaging box, ensure that the holes in the packaging bag will not be compacted during the stacking process and maintain their ventilation function. The specific method is to set the oxygen permeability of the top packaging bag to A, the oxygen permeability of the bottom packaging bag to B, and the ratio of B/A is between 0.5 and 1.0.
It effectively prevents the holes in the packaging bag from being compacted, ensures oxygen permeability, and extends the shelf life of fruits and vegetables.
Smart Images

Figure 0007661002000004 
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Figure 0007661002000006
Abstract
Description
[Technical field]
[0001] The present invention relates to A method for determining the number of fruit and vegetable packages to be stacked Regarding. [Background technology]
[0002] At mass retailers such as supermarkets and department stores, fruits such as bananas and mangoes, root vegetables such as radishes and carrots, fruit vegetables such as tomatoes and cucumbers, sprouts such as mung bean sprouts, fungus (mushrooms) such as shiitake mushrooms and shimeji mushrooms, leafy stem vegetables such as broccoli, spinach, lettuce and cabbage, and flowers or seedlings such as chrysanthemums and lilies are sometimes sold to consumers (purchasers) in the form of fruit and vegetable packages wrapped in packaging bags made of synthetic resin film with small holes formed into openings (see, for example, Patent Document 1).
[0003] Packaging of fruits and vegetables in such packaging bags is carried out, for example, at a processing factory to produce fruit and vegetable packages, which are then transported in a truck or the like and then displayed at a mass retailer or sold by direct delivery from the factory.
[0004] When transporting by truck or the like, multiple fruit and vegetable packages are packed together in a packaging box such as a cardboard box to form a fruit and vegetable package. The fruit and vegetable packages are delivered to the home in this state, or they are removed from the packaging box after transportation and storage and displayed in the fruit and vegetable package state for sale at a retail store.
[0005] Incidentally, in the above-mentioned fruit and vegetable packaging, multiple fruit and vegetable packages are typically packed together by stacking the fruit and vegetable packages (synthetic resin film) in the direction of gravity, with the fruit and vegetable packages (synthetic resin film) approximately parallel to the bottom surface of the packaging box.
[0006] However, in a packaging method in which the fruit and vegetable packages are arranged substantially parallel to the bottom of the packaging box, simply stacking multiple fruit and vegetable packages in the direction of gravity causes the upper and lower fruit and vegetable packages to overlap with each other, resulting in blocking or crushing of the pores formed in the synthetic resin film, particularly in the fruit and vegetable package located at the bottom. This causes the pores to be unable to function as openings, resulting in a problem that the freshness of the packaged fruit and vegetable cannot be sufficiently maintained for a long period of time. [Prior art documents] [Patent documents]
[0007] [Patent Document 1] JP 2014-213863 A Summary of the Invention [Problem to be solved by the invention]
[0008] The object of the present invention is to provide a fruit and vegetable package in which fruit and vegetables are packed and stacked in a packing box in the direction of gravity, and which can maintain the freshness of the fruit and vegetables for a long period of time, even if the fruit and vegetables are stacked in the bottommost position. A method for determining the number of stacked fruit and vegetable packages in The purpose of this invention is to provide [Means for solving the problem]
[0009] Such objectives are as follows: 6 This is achieved by the present invention described in (1) A packaging box having a bottom surface and a plurality of side surfaces extending upright from the bottom surface; A fruit and vegetable package having a fruit and vegetable packaging container for packaging the fruit and vegetable, A plurality of the fruit and vegetable packages are stacked in the packing box in the direction of gravity and packed in the packing box. A method for determining the number of fruit and vegetable packages to be stacked And, Each of the plurality of fruit and vegetable packaging containers has a film member made of a synthetic resin film having a plurality of openings, and the film members of each of the plurality of fruit and vegetable packaging containers are the same, The fruit and vegetable packaging container is a fruit and vegetable packaging bag formed into a bag shape by overlapping two of the film members, The oxygen permeability of the fruit and vegetable packaging container located at the top is A [cc / m 2 ·day·MPa (30℃·70%RH)], and the oxygen permeability of the fruit and vegetable packaging container located at the bottom is B [cc / m 2 ·days·MPa (30℃·70%RH)] 、B / A should be between 0.5 and 0.98. The number of the fruit and vegetable packages to be stacked is determined. Characterized by Quantity determination method .
[0011] (2) The opening portion according to the above (1) is elongated. Quantity determination method . (3) The opening is circular. Quantity determination method .
[0012] (4) The film member according to any one of (1) to (3), wherein the openings are formed in a plurality of openings arranged in a lattice pattern. Quantity determination method .
[0013] (5) The packaging box according to any one of (1) to (4) above, further comprising a top surface facing the bottom surface, the top surface and the bottom surface being disposed so as to straddle the plurality of side surfaces, and at least one of the top surface and the plurality of side surfaces being openable and closable. Quantity determination method .
[0014] (6) The angle between the film member and the bottom surface is 0° or more and 15° or less according to any one of (1) to (5) above. Quantity determination method . Effect of the Invention
[0017] This issue Clearly According to the report, fruits and vegetables are packaged in a packaging box. packagingEven if multiple bodies are packed in a stack in the direction of gravity, the oxygen permeability of the topmost fruit and vegetable packaging container is A [cc / m 2 ·day·MPa (30℃·70%RH)], and the oxygen permeability of the fruit and vegetable packaging container located at the bottom is B [cc / m 2 The fruit and vegetable packages are stacked in such a number that the B / A is 0.5 or more and 1.0 or less when the temperature is 100°C / day / MPa (30°C / 70%RH). Therefore, even if the fruit and vegetable packages are the bottommost of the multiple stacked fruit and vegetable packages in the packaging box, the pores formed in the film material are effectively prevented from being blocked or crushed, and the pores can reliably function as openings. This allows the packaged fruit and vegetable to stay fresh for a long period of time. [Brief description of the drawings]
[0018] [Figure 1] 1 is a plan view showing a first embodiment of a fruit and vegetable package to be packaged in a fruit and vegetable package. FIG. [Diagram 2] 2 is a perspective view showing the fruit and vegetable packaging container in FIG. 1 in an unpackaged state. FIG. [Diagram 3] 2 is a perspective view showing the fruit and vegetable package shown in FIG. 1 and a packaging box in which the fruit and vegetable package is packaged. [Figure 4] 2 is a vertical cross-sectional view showing a first embodiment of a fruit and vegetable package in which a plurality of the fruit and vegetable packages shown in FIG. 1 are packed in a packaging box. [Diagram 5] 11 is a perspective view showing a second embodiment of a fruit and vegetable package to be packed in the fruit and vegetable package. FIG. [Figure 6] 6 is a vertical cross-sectional view showing a second embodiment of the fruit and vegetable package in which a plurality of the fruit and vegetable packages shown in FIG. 5 are packed in a packaging box. [Figure 7] 10 is a vertical cross-sectional view showing a third embodiment of a fruit and vegetable package in which a plurality of the fruit and vegetable packages shown in FIG. 1 are packed in a packaging box. [Figure 8] 10 is a vertical cross-sectional view showing a fourth embodiment of a fruit and vegetable package in which a plurality of the fruit and vegetable packages shown in FIG. 1 are packed in a packaging box. [Figure 9]13 is a plan view showing a fifth embodiment of a fruit and vegetable package to be packed in the fruit and vegetable package. FIG. [Figure 10] 10 is a perspective view showing the fruit and vegetable packaging container in FIG. 9 in an unpackaged state. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0019] below , blue DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A fruit packaging device and a packaging method thereof will now be described in detail with reference to preferred embodiments shown in the accompanying drawings.
[0020] In the following , blue Before explaining the fruit packaging, , blue A fruit and vegetable package to be packed in the fruit package will be described.
[0021] <<First embodiment>> <Fruit and vegetable packaging> Figure 1 shows , blue FIG. 2 is a plan view showing a first embodiment of a fruit and vegetable package to be packaged in a fruit package, and FIG. 3 is a perspective view showing the fruit and vegetable packaging container in FIG. 1 in an unpackaged state. In FIG. 1 and FIG. 2, for convenience of explanation, the opening of the fruit and vegetable packaging container is exaggerated, and the size and ratio of the opening to the entire fruit and vegetable packaging container are significantly different from the actual size. In addition, the fruit and vegetable packaging container (first film member and second film member) is rectangular in plan view, and the direction along its long side 12 is the x-direction and the direction along its short side 11 is the y-direction. In addition, the direction perpendicular to the x-direction and y-direction, i.e., the thickness direction of the fruit and vegetable packaging container (first film member and second film member), is the z-direction.
[0022] As shown in Fig. 1, a fruit or vegetable packaging container 1 (hereinafter sometimes simply referred to as "packaging container 1") is bag-shaped in this embodiment and is used for packaging fruit or vegetable B in a sealed state within this container (inside the bag), and a fruit or vegetable package 10 (hereinafter sometimes simply referred to as "packaging body 10") has the packaging container 1 and the fruit or vegetable B packaged in a sealed state in this packaging container 1. Hereinafter, the state in which the fruit or vegetable B has not yet been packaged in the packaging container 1 will be referred to as the "unpackaged state," and the state in which the fruit or vegetable B has been packaged in the packaging container 1 will be referred to as the "packaged state."
[0023] The fruit or vegetable B to be packaged in the packaging container 1 is not particularly limited, but examples thereof include fruits such as bananas, mangoes, plums, apples, strawberries, mandarin oranges, grapes, Japanese pears, and European pears; root vegetables such as radishes, carrots, Chinese yams, and burdock; fruit vegetables such as tomatoes, cucumbers, eggplants, bell peppers, edamame, and okra; sprouts such as mung bean sprouts, soybean sprouts, and tomyo; fungal mushrooms (mushrooms) such as shiitake mushrooms, shimeji mushrooms, king oyster mushrooms, maitake mushrooms, and matsutake mushrooms; leafy stem vegetables such as broccoli, spinach, komatsuna, bok choy, lettuce, cabbage, and asparagus; and flowers or seedlings such as chrysanthemums, lilies, and carnations. Any of these can be packaged in the packaging container 1.
[0024] Furthermore, the fruits and vegetables may be unprocessed, or may have been processed by washing with water or the like, or may be so-called cut vegetables that have been pre-processed, such as by slicing into thin strips, chopping into irregular pieces, or cutting into chrysanthemum shapes.
[0025] The packaging container 1 is used for packaging fruits and vegetables. In this embodiment, the packaging container 1 is made of a synthetic resin film formed into a bag shape, and more specifically, the bag shape is formed by overlapping a first film member 2 and a second film member 3, and an opening provided on a short side 11, which is an opening for inserting and removing fruits and vegetables B, is fused and sealed by heat sealing (thermocompression bonding) to form a sealed bag.
[0026] This packaging container 1 can be produced by various methods, without being particularly limited thereto, but for example, by forming a tubular film by heat-sealing two or one of two long sides 12 of two overlapping synthetic resin films or folding one synthetic resin film, a packaging container 1 having openings on two short sides 11 facing in the x direction can be obtained. In such a packaging container 1, fruit or vegetable B is placed through one of the openings formed on each of the two short sides 11, and then these openings are heat-sealed and sealed to produce a fruit or vegetable package 10 in which the fruit or vegetable is packaged in the packaging container 1.
[0027] The formation of a fruit and vegetable package 10 in which such fruit and vegetable B is packaged in a packaging container 1 is carried out, for example, in a processing factory, and this fruit and vegetable package 10 is transported by truck or the like and then displayed in a mass retailer or sold by home delivery directly from the factory.
[0028] When two synthetic resin films are overlapped to produce the bag-shaped packaging container 1, these two synthetic resin films form the first film member 2 and the second film member 3. When one synthetic resin film is folded to produce the packaging container 1, the first film member 2 and the second film member 3 are formed by the folded single synthetic resin film.
[0029] The material of such synthetic resin film (first film member 2 and second film member 3) is not particularly limited, and examples thereof include polyethylene, polypropylene, polyethylene terephthalate, polystyrene, nylon (polyamide), ethylene vinyl acetate copolymer (EVA), polybutylene succinate, polybutylene succinate adipate, and polylactic acid. The synthetic resin film may be a semi-synthetic resin film, and examples of the material include cellophane. Any of these materials may be used alone or laminated. The packaging container 1 may be a bag made by bonding these films with metal foil, paper, or nonwoven fabric.
[0030] In addition, the first film member 2 and the second film member 3 may be subjected to stretching processing, anti-fogging processing or printing, and may be coated with inorganic antibacterial agents such as silver or copper, or organic antibacterial agents such as chitin, chitosan or allyl isothiocyanate, or these may be kneaded into the film.
[0031] When using the first film member 2 and the second film member 3 that are not suitable for heat sealing, the opening can be sealed by laminating or coating a sealant layer on the short side 11 where the opening is provided. For example, cellophane film coated with acrylic resin and a film in which linear low density polyethylene (LLDPE) polystyrene and EVA are laminated on polyethylene terephthalate (PET) can be used as the first film member 2 and the second film member 3.
[0032] As shown in FIG. 1, in this embodiment, the first film member 2 has a plurality of first openings 21 (first through holes) penetrating in the z direction (thickness direction), and the second film member 3 has a plurality of second openings 31 (second through holes) penetrating in the z direction. This allows the packaging container 1 to exhibit breathability that allows air to pass through even in a packaged state. In this manner, in the packaging container 1, the synthetic resin film, i.e., the first and second openings 21, 31 formed in the first and second film members 2, 3, respectively, function as ventilation holes (pores) through which air passes. As a result, the packaging container 1 can maintain oxygen concentration and carbon dioxide gas concentration suitable for preserving the fruit or vegetable B, and therefore the freshness of the fruit or vegetable B can be maintained for a long period of time.
[0033] Incidentally, the oxygen concentration inside the packaging container 1 varies depending on the fruit or vegetable B to be packaged, but is generally 0.04-19%, and the carbon dioxide concentration is preferably 2-26%, and more preferably 0.1-10% and 5-15%. By setting the oxygen concentration and carbon dioxide concentration inside the packaging container 1 within the above ranges, the freshness of the fruit or vegetable B can be reliably maintained for a long period of time.
[0034] The oxygen permeability of the packaging container 1 is 2500cc / m 2 ·Japan · MPa (30℃ · 70%RH) or more 110000cc / m 2 It is preferable that the temperature is 100° C.·day·MPa (30° C.·70% RH) or less. This makes it relatively easy to set the oxygen concentration and carbon dioxide gas concentration inside the packaging container 1 within the above range.
[0035] In the packaging container 1 having such a configuration, the number of first openings 21 is not limited, but in this embodiment, as shown in Figures 1 and 2, they are arranged in four rows at equal intervals along the x direction and four columns at equal intervals along the y direction. The first openings 21 arranged in a matrix in this manner may be referred to as "first opening 21a," "first opening 21b," "first opening 21o," and "first opening 21p" in order from the lower left to the upper right in Figure 1. Each of the first openings 21 has an elongated shape that extends linearly in the x direction.
[0036] In addition, the second openings 31 are not limited in number, but in this embodiment, they are arranged in four rows at equal intervals along the x direction and four columns at equal intervals along the y direction. The second openings 31 arranged in this matrix (lattice) may be referred to as "second opening 31a", "second opening 31b", "second opening 31o" and "second opening 31p" in order from the lower left to the upper right in FIG. 1. Each second opening 31 has the same shape and size as the first opening 21. That is, each second opening 31 has an elongated shape extending linearly in the x direction.
[0037] In the packaging container 1 configured as above, the length L, width W and number (16 each in this embodiment) of the openings 21, 31 formed in the first and second film members 2, 3 are set so that the oxygen concentration and carbon dioxide concentration inside the packaging container 1 and the oxygen permeability of the packaging container 1 are within the above-mentioned ranges. Specifically, the length L of the first opening 21 and the second opening 31 is preferably 30 μm or more and 200 μm or less, more preferably 50 μm or more and 100 μm or less, and the width w is preferably 10 μm or more and 100 μm or less, more preferably 50 μm or more and 80 μm or less.
[0038] The thickness T of the first film member 2 and the second film member 3 may be the same or different, but is preferably 0.01 mm or more and 0.1 mm or less, and more preferably 0.01 mm or more and 0.065 mm or less.
[0039] Furthermore, the amount of fruit or vegetable packed in the packaging container 1 differs depending on the type of fruit or vegetable, but is preferably set to about 10 g to 800 g per bag, and more preferably about 50 g to 400 g per bag.
[0040] The first opening 21 may be formed in the first film member 2, and the second opening 31 may be formed in the second film member 3 by cutting using a sharp blade such as a cutter, or by punching using a die that can make a cut in a desired shape. Alternatively, they can be formed by laser processing.
[0041] When transporting by truck or the like, multiple fruit and vegetable packages 10 as described above are packed into a packing box 100 to form a fruit and vegetable package 500. For example, the fruit and vegetable package 500 may be delivered to the home, or it may be removed from the packing box 100 after transportation and storage and displayed as the fruit and vegetable package 10 for sale at a retail store.
[0042] In the present invention, in this fruit and vegetable package 500, a plurality of fruit and vegetable packages 10 are packed in a packing box 100 by stacking them in the direction of gravity (z direction), and the oxygen permeability of the uppermost fruit and vegetable packaging container 1 is set to A [cc / m 2 ·day·MPa (30℃·70%RH)], and the oxygen permeability of the fruit and vegetable packaging container 1 located at the bottom is B [cc / m 2 The fruit and vegetable packages 10 are stacked and packed in such a quantity that the B / A ratio is 0.5 or more and 1.0 or less when the ambient temperature is 30°C·day·MPa (30°C·70% RH).
[0043] Therefore, even if the fruit or vegetable packages 10 are located at the bottom among the multiple fruit or vegetable packages 10 stacked in the packaging box 100, the first and second openings 21, 31 (pores) formed in the first and second film members 2, 3 are appropriately suppressed or prevented from being blocked or crushed, and the openings 21, 31 can reliably function as ventilation holes (openings). Therefore, the freshness of the fruit or vegetable B packaged in the packaging container 1 can be maintained for a long period of time.
[0044] The fruit and vegetable package 500 will be described in detail below. <Fruit and vegetable packaging> FIG. 3 is a perspective view showing the fruit and vegetable package shown in FIG. 1 and a packaging box for packaging the fruit and vegetable package. FIG. 4 is a perspective view showing a plurality of the fruit and vegetable packages shown in FIG. 1 packaged in the packaging box. Blue A longitudinal sectional view showing a first embodiment of a fruit package. For ease of explanation, in Fig. 3 and Fig. 4, the opening of the fruit and vegetable packaging container is exaggerated, and the size and ratio of the opening to the entire fruit and vegetable packaging container are significantly different from the actual size. The fruit and vegetable packaging container is rectangular in plan view, and the direction along its long side 12 is the x-direction and the direction along its short side 11 is the y-direction. The direction perpendicular to the x-direction and y-direction, i.e., the thickness direction of the fruit and vegetable packaging container (the first film member and the second film member), is the z-direction.
[0045] The packaging box 100 is made of a paper board such as corrugated cardboard or a resin board made of a resin material, and as shown in FIG. 3, has a rectangular bottom surface 101 and first to fourth rectangular side surfaces 102 to 105 respectively extending from the four sides (edges) of the bottom surface 101, and the bottom surface 101 and the first to fourth side surfaces 102 to 105 define an internal space 120 having an opening 125 that opens on the opposite side of the bottom surface 101.
[0046] Furthermore, the packaging box 100 has first to fourth lid bodies 112-115 each having a rectangular shape and rotatably provided on the sides (edges) of the first to fourth side surfaces 102-105 opposite the bottom surface 101. The first to fourth lid bodies 112-115 are folded toward the internal space 120 (inside) so as to be approximately parallel to the bottom surface 101, thereby forming a top surface 110 that closes the opening 125.
[0047] That is, in this embodiment, in the packaging box 100, the top surface 110 formed by the first to fourth lid bodies 112 to 115 faces the bottom surface 101, and further, the top surface 110 and the bottom surface 101 are arranged so as to straddle multiple side surfaces 102 to 105, and the top surface 110 can be opened and closed by rotating the first to fourth lid bodies 112 to 115.
[0048] The fruit and vegetable packaging body 500 (hereinafter sometimes simply referred to as "packaging body 500") comprises such a packaging box 100 and a plurality of packaging bodies 10 (14 in this embodiment) packaged within the packaging box 100, i.e., stored in the internal space 120 of the packaging box 100 (see Figure 4).
[0049] In the present invention, the packaging body 10 is a packaging box 100 in which a plurality of items are stacked in the direction of gravity (z direction) and packed. The oxygen permeability of the uppermost packaging container 1 is A [cc / m 2 ·days·MPa (30℃·70%RH)], and the oxygen permeability of the packaging container 1 located at the bottom is B [cc / m 2The fruit and vegetable packages 10 are stacked and packed in such a number that the B / A is 0.5 or more and 1.0 or less when the pressure in the package 10 is 1.0 / day / MPa (30°C / 70% RH). That is, in this embodiment, the packages 10 are stored in the internal space 120 with one of the first and second film members 2, 3 facing downward (to the bottom surface 101) so that the first and second film members 2, 3 of the packages 10 are substantially parallel to the bottom surface 101. The multiple packages 10 are stored (packed) in the internal space 120 with two sets of seven packages 10 stacked in the thickness direction (z direction) of the bottom surface 101 as one set.
[0050] In this way, when the packaging bodies 10 are stacked in parallel with the bottom surface 101, i.e., in the direction of gravity, and stored in the internal space 120, the oxygen transmission rate A [cc / m 2 ·days·MPa (30℃·70%RH)] and the oxygen permeability B [cc / m 2 The fruit and vegetable packages 10 are stacked and packed in such a number that the relationship B / A between the weight of the upper package 10 and the pressure of the lower package 10 (pressure / pressure (V) / day / MPa (30°C / 70% RH)) is 0.5 or more and 1.0 or less. This effectively prevents the weight of the upper package 10 from being unnecessarily applied to the lower package 10. This effectively prevents or prevents the first and second openings 21, 31 (pores) formed in the first and second film members 2, 3 in the lower package 10 from being blocked or crushed. This effectively allows the first and second openings 21, 31 (pores) to function as openings, so that the freshness of the packaged fruit and vegetable B can be maintained for a long period of time even in the lower package 10.
[0051] The relationship B / A between the oxygen permeability A of the packaging container 1 located at the top and the oxygen permeability B of the packaging container 1 located at the bottom may be 0.5 or more and 1.0 or less, preferably 0.6 or more and 1.0 or less, and more preferably 0.85 or more and 1.0 or less. This allows the above-mentioned effects to be exhibited more significantly.
[0052] 4, the packaging bodies 10 are stacked in the direction of gravity and stored in the internal space 120 so that the first and second film members 2, 3 of the packaging body 10 are substantially parallel to the bottom surface 101, but the packaging bodies 10 are not limited to being substantially parallel in this manner, and the first and second film members 2, 3 of the packaging body 10 may be stored in the internal space 120 with the first and second film members 2, 3 slightly inclined with respect to the bottom surface 101. That is, the first and second film members 2, 3 of the fruit and vegetable packaging body 10 may be perpendicular or slightly inclined with respect to the bottom surface 101 of the packaging box 100. Specifically, the angle between the first and second film members 2, 3 and the bottom surface 101, including the case where they are parallel, is preferably 0° or more and 15° or less, and more preferably 0° or more and 5° or less. When the angle formed between the first and second film members 2, 3 and the bottom surface 101 is within the above-mentioned range, by applying the present invention, it is possible to more appropriately suppress or prevent the first and second openings 21, 31 (pores) formed in the first and second film members 2, 3 from being blocked or crushed, even in the packaging body 10 located below.
[0053] Here, the angle between the first and second film members 2, 3 and the bottom surface 101 in the packaging body 10 refers in this specification to the angle between the bottom surface 101 and a tangent at the center of gravity of the first and second film members 2, 3 that is the shortest distance from the bottom surface 101, that is, in this embodiment, the angle between the bottom surface 101 and a tangent extending in the longitudinal direction (y direction) of the first and second film members 2, 3 at the center of gravity of the first and second film members 2, 3.
[0054] As described above, the relationship B / A between the oxygen permeability A of the packaging container 1 located at the top and the oxygen permeability B of the packaging container 1 located at the bottom is set within the range of 0.5 to 1.0 by adjusting the number of packages 10 to be stacked, but in addition to adjusting the number, the size of B / A may be adjusted by stacking upper and lower fruit and vegetable packages 10 alternately so that the short sides 11 and long sides 12 face the same direction, instead of stacking them with the short sides 11 facing the same direction as in this embodiment. Furthermore, the size of B / A can also be adjusted by configuring the packaging container 1 so that the openings 21, 31 are biased toward one of the two short sides 11 in the film members 2, 3, and stacking them so that one short side 11 overlaps the other short side 11.
[0055] In addition, the packaging body 500 in which the packaging bodies 10 are stacked in the direction of gravity in the internal space 120 can be obtained, for example, by a packaging method including a storage process in which the packaging bodies 10 are stacked and stored in the packaging box 100 so that the angles formed between the first and second film members 2, 3 and the bottom surface 101 are parallel when the top surface 110 of the packaging box 100 is open, and a closing process in which the packaging body 500 is obtained with the top surface 110 closed.
[0056] Furthermore, the packaging box 100 is not limited to the case where the top surface 110 is openable and closable as in this embodiment, but may be one where at least one of the first to fourth side surfaces 102 to 105 is openable and closable, or further, the formation of the top surface 110 may be omitted. Note that, when the formation of the top surface 110 is omitted, the process of leaving the top surface 110 open and further leaving the top surface 110 closed is omitted in the above-mentioned packaging method.
[0057] Furthermore, in this embodiment, the openings 21, 31 are described as being configured as through holes that penetrate the film members 2, 3 in the z-direction. However, the openings 21, 31 only need to have a lower oxygen permeability than the film members 2, 3, and may be configured as, for example, thin-walled portions that are thinner than the film members 2, 3.
[0058] <Second embodiment> A fruit and vegetable package and a second embodiment of the fruit and vegetable package will be described below, focusing on the differences from the first embodiment described above, and a description of similar points will be omitted.
[0059] <Fruit and vegetable packaging> Figure 5 shows , blue 5 is a perspective view showing a second embodiment of a fruit and vegetable package to be packaged in a fruit package. In Fig. 5, for convenience of explanation, the opening of the fruit and vegetable packaging container is exaggerated, and the size and ratio of the opening to the entire fruit and vegetable packaging container are significantly different from the actual size. The fruit and vegetable packaging container has a rectangular shape in a plan view, and the direction along its long side is the x-direction and the direction along its short side is the y-direction. The direction perpendicular to the x-direction and y-direction, i.e., the thickness direction of the fruit and vegetable packaging container (first film member), is the z-direction.
[0060] Here, this embodiment is similar to the first embodiment, except that the fruit and vegetable packaging container for storing (packaging) the fruit and vegetable B has a different configuration.
[0061] As shown in Figure 5, the fruit and vegetable packaging container 1A (hereinafter sometimes simply referred to as "packaging container 1A") in this embodiment has an overall box-like shape and is used for packaging fruit and vegetable B in a sealed state within this container (inside the box), and the fruit and vegetable packaging body 10A (hereinafter sometimes simply referred to as "packaging body 10A") has the packaging container 1A and the fruit and vegetable B packaged (stored) in a sealed state in this packaging container 1A.
[0062] This packaging container 1A has a storage member 5 with a recess 55 and a first film member 2, and is an airtight container that seals the fruit or vegetable B within the recess 55 by sealing the recess 55 with the first film member 2.
[0063] In the packaging container 1A, the first film member 2 has the same configuration as that described in the first embodiment, and the storage member 5 has a flat bottom 51 and a side surface 52 standing upright from an edge of the bottom 51, thereby forming a recess 55 with an opening 54. In the packaging container 1A having such a configuration, after fruit or vegetable B is stored through the opening 54, the top 53 of the side surface 52 is sealed with the first film member 2 by heat fusion or the like, thereby forming a fruit or vegetable package 10A in which the fruit or vegetable is packaged in the packaging container 1A.
[0064] The material of the storage member 5 is not particularly limited, but examples thereof include polyolefins such as polypropylene, polyester, and polystyrene.
[0065] Like the fruit and vegetable package 10 described in the first embodiment, a plurality of the fruit and vegetable packages 10A as described above are packed in a packaging box 100 during transportation by truck or the like to form a fruit and vegetable package 500A.
[0066] <Fruit and vegetable packaging> FIG. 6 shows a plurality of fruit and vegetable packages shown in FIG. 5 packed in a packaging box. Blue 6 is a longitudinal sectional view showing a second embodiment of a fruit package. For ease of explanation, in Fig. 6, the opening of the fruit and vegetable packaging container is exaggerated, and the size and ratio of the opening to the entire fruit and vegetable packaging container are significantly different from the actual size. The fruit and vegetable packaging container has a rectangular shape in a plan view, and the direction along its long side is the x-direction and the direction along its short side is the y-direction. The direction perpendicular to the x-direction and y-direction, i.e., the thickness direction of the fruit and vegetable packaging container (first film member), is the z-direction.
[0067] The fruit and vegetable packaging body 500A (hereinafter sometimes simply referred to as "packaging body 500A") comprises a packaging box 100 similar to that of the first embodiment described above, and multiple packaging bodies 10A (14 in this embodiment) stored in an internal space 120 of the packaging box 100 (see Figure 6).
[0068] The packages 10A are stored in the packaging box 100 by being stacked in the direction of gravity on the bottom surface 101 so as to be approximately parallel to the bottom surface 101. More specifically, in this embodiment, the multiple packages 10A are stored (packed) in the internal space 120 with two sets of packages 10A arranged side by side in the plane direction (y direction) of the bottom surface 101, with seven packages 10A stacked in the thickness direction (z direction) of the bottom surface 101 as one set.
[0069] In this way, when the packaging bodies 10A are stacked in the direction of gravity so as to be approximately parallel to the bottom surface 101 and stored in the internal space 120, a quantity of packaging bodies 10A (seven in this embodiment) are stacked and packed so that B / A is 0.5 or greater and 1.0 or less, thereby achieving the same effect as when the packaging body 10 of the first embodiment is stored in the internal space 120.
[0070] <Third embodiment> Hereinafter, a fruit and vegetable package and a third embodiment of the fruit and vegetable package will be described, focusing on the differences from the first embodiment described above, and a description of similar points will be omitted.
[0071] Here, in this embodiment, the fruit and vegetable packaging container 1 that stores (packages) the fruit and vegetable packaging container B has the same configuration as the fruit and vegetable packaging container 1 described in the first embodiment, and is similar to the first embodiment except that the configuration of the packaging box 100B in which the fruit and vegetable packaging container 1 is packaged is different.
[0072] Therefore, in the following, a description of the fruit and vegetable package 10 will be omitted, and a description will be given of a fruit and vegetable package 500B in which a plurality of fruit and vegetable packages 10 are packed in a packaging box 100B.
[0073] <Fruit and vegetable packaging> FIG. 7 shows a case in which a plurality of fruit and vegetable packages shown in FIG. 1 are packed in a packaging box. Blue7 is a longitudinal sectional view showing a third embodiment of a fruit package. For ease of explanation, in Fig. 7, the opening of the fruit and vegetable packaging container is exaggerated, and the size and ratio of the opening to the entire fruit and vegetable packaging container are significantly different from the actual size. The fruit and vegetable packaging container has a rectangular shape in a plan view, and the direction along its long side 12 is the x-direction and the direction along its short side 11 is the y-direction. The direction perpendicular to the x-direction and y-direction, i.e., the thickness direction of the fruit and vegetable packaging container (the first film member and the second film member), is the z-direction.
[0074] As shown in Fig. 7, the packaging box 100B has a rectangular bottom surface 101, first to fourth side surfaces 102 to 105 each formed vertically from four sides (edges) of the bottom surface 101, and a rectangular top surface 110 facing the bottom surface 101, and an internal space 120 is defined by the bottom surface 101, the first to fourth side surfaces 102 to 105, and the top surface 110, similar to the packaging box 100 described in the first embodiment. In this embodiment, the packaging box 100B has a plurality of (two in this embodiment) partition members 130 (auxiliary tools) arranged along the surface direction (y direction) of the bottom surface 101. As a result, the internal space 120 is divided into a plurality of (three in this embodiment) compartments 135.
[0075] In the present embodiment, the packaging box 100B is provided with three compartments 135, each of which is provided with two packages 10 stacked in the thickness direction (z direction) of the bottom surface 101, and two sets are stored (packed) in a state where two packages 10 are stacked in the thickness direction (z direction) of the bottom surface 101 to form one set. By storing the stacked packages 10 in the compartments 135 separated by the partition members 130 in this manner, the relationship B / A between the oxygen permeability A of the fruit and vegetable packaging container 1 located at the top and the oxygen permeability B of the fruit and vegetable packaging container 1 located at the bottom can be more easily set within the range of 0.5 to 1.0. Therefore, the same effect as that of storing the packages 10 of the first embodiment in the internal space 120 can be more reliably obtained.
[0076] In the packaging box 100B, as in the first embodiment, at least one of the first to fourth side faces 102 to 105 and the top face 110 may be openable and closable, but it is preferable that one of the first to fourth side faces 102 to 105 is openable and closable. By configuring the side face to open in this manner, an opening is formed in the side face, and thus, in a packaging method for packaging the packages 10 in the packaging box 100B, the stacked packages 10 can be stored relatively easily in the compartment 135 partitioned by the partition member 130.
[0077] <Fourth embodiment> A fourth embodiment of the fruit and vegetable package and the fruit and vegetable packaging body will be described below, focusing on the differences from the first embodiment described above, and a description of similar points will be omitted.
[0078] Here, in this embodiment, the fruit and vegetable packaging container 1 that stores (packages) the fruit and vegetable packaging container B has the same configuration as the fruit and vegetable packaging container 1 described in the first embodiment, and is similar to the first embodiment except that the configuration of the packaging box 100C in which the fruit and vegetable packaging container 1 is packaged is different.
[0079] Therefore, in the following, a description of the fruit and vegetable package 10 will be omitted, and a description will be given of a fruit and vegetable package 500C in which a plurality of fruit and vegetable packages 10 are packed in a packaging box 100C.
[0080] <Fruit and vegetable packaging> FIG. 8 shows a case in which a plurality of fruit and vegetable packages shown in FIG. 1 are packed in a packaging box. Blue 8 is a longitudinal sectional view showing a fourth embodiment of a fruit package. For ease of explanation, in Fig. 8, the opening of the fruit and vegetable packaging container is exaggerated, and the size and ratio of the opening to the entire fruit and vegetable packaging container are significantly different from the actual size. The fruit and vegetable packaging container has a rectangular shape in a plan view, and the direction along its long side 12 is the x-direction and the direction along its short side 11 is the y-direction. The direction perpendicular to the x-direction and y-direction, i.e., the thickness direction of the fruit and vegetable packaging container (the first film member and the second film member), is the z-direction.
[0081] 8, the packaging box 100C has a rectangular bottom surface 101, first to fourth side surfaces 102 to 105 each extending from four sides (edges) of the bottom surface 101, and a rectangular top surface 110 facing the bottom surface 101, and an internal space 120 is defined by the bottom surface 101, the first to fourth side surfaces 102 to 105, and the top surface 110, in the same manner as the packaging box 100 described in the first embodiment. In this embodiment, the packaging box 100C has a base 140 (auxiliary tool) for raising the bottom to define a space 150 between the package 10 located at the bottom and the bottom surface 101. With this base 140 placed on the bottom surface 101, the multiple packages 10 are arranged on the base 140 in two sets lined up in the surface direction (y direction) of the base 140, with six packages 10 stacked together in the packaging box 100C.
[0082] In this manner, in the packaging box 100C, a plurality of packaging bodies 10 are stacked in the direction of gravity on the base 140 disposed on the bottom surface 101, so that a space 150 is located between the packaging body 10 located at the bottom and the bottom surface 101. Therefore, even if moisture is attached to the bottom surface 101 of the packaging box 100C, it is possible to reliably prevent the packaging body 10 located at the bottom from coming into contact with the bottom surface 101 of the packaging box 100C. Therefore, since it is possible to reliably prevent moisture attached to the bottom surface 101 from being taken into the packaging body 10 through the first and second openings 21, 31 of the first and second film members 2, 3 of the packaging body 10, the freshness of the packaged fruit and vegetable B can be maintained almost uniformly for a long period of time in each packaging body 10 packed in the fruit and vegetable package 500C.
[0083] <Fifth embodiment> Hereinafter, a fruit and vegetable package and a fruit and vegetable packing according to a fifth embodiment will be described, focusing on differences from the first embodiment described above, and a description of similar points will be omitted.
[0084] Here, in this embodiment, the configuration of the packaging box 100 in which the fruit and vegetable packaging container 1 is packaged is the same as in the first embodiment, but the fruit and vegetable packaging container 1 in which the fruit and vegetable B is stored (packaged) has a different configuration from the fruit and vegetable packaging container 1 described in the first embodiment.
[0085] Therefore, in the following, a description of the fruit and vegetable package 500 will be omitted, and a description will be given of the fruit and vegetable packages 10 packaged in multiple packages in the packaging box 100.
[0086] <Fruit and vegetable packaging> Figure 9 shows , blue FIG. 10 is a perspective view showing an unpackaged state of the fruit and vegetable packaging container in FIG. 9, and FIG. 11 is a plan view showing a fifth embodiment of the fruit and vegetable packaging body to be packed in the fruit packaging body. Note that in FIGS. 9 and 10, for convenience of explanation, the opening of the fruit and vegetable packaging container is exaggerated, and the size and ratio of the opening to the entire fruit and vegetable packaging container are significantly different from the actual size. In addition, the fruit and vegetable packaging container has a rectangular shape in a plan view, and the direction along the short side is the x-direction and the direction along the long side is the y-direction. The direction perpendicular to the x-direction and y-direction is referred to as the thickness direction of the fruit and vegetable packaging container (the first film member and the second film member).
[0087] As shown in FIG. 9, in this embodiment, similarly to the first embodiment, in the packaging container 1, the first film member 2 has a plurality of first openings (first through holes) 21 penetrating in its thickness direction, and the second film member 3 has a plurality of second openings (second through holes) 31 penetrating in its thickness direction.
[0088] In the packaging container 1 having such a configuration, in this embodiment, each of the first openings 21 and each of the second openings 31 are elliptical in shape with the longer side extending in the x direction, as shown in Figs.
[0089] Thus, even in the case of packaging container 1 having elliptical first opening 21 and second opening 31, first opening 21 and second opening 31 function as vents (pores) through which air passes, so that packaging container 1 exhibits breathability that allows air to pass through in a packaged state. As a result, packaging container 1 can maintain oxygen and carbon dioxide concentrations suitable for preserving fruit or vegetable B, and therefore the freshness of fruit or vegetable B can be maintained for a long period of time.
[0090] Therefore, the same effects as the packaging body 500 described in the first embodiment can be obtained in the packaging body 500 in which the packaging body 10 in which fresh produce B is packaged in the packaging container 1 of this embodiment is packaged in a packaging box 100.
[0091] It should be noted that the first opening 21 and the second opening 31 are not limited to being elliptical, but may be circular, or may be any shape that is circular.
[0092] As described above, Quantity determination method Although the embodiment shown in the drawings has been described, the present invention is not limited thereto, and each part constituting the fruit and vegetable package (fruit and vegetable packaging container) can be replaced with any other part capable of exerting the same function. Also, any other component may be added.
[0093] In addition, the present invention Quantity determination method may be a combination of any two or more configurations (features) of the above-described embodiments.
[0094] Furthermore, in the packaging container 1 in the above-mentioned embodiments 1, 3 to 5, a plurality of openings are formed in both the first film and the second film, but this is not limited thereto, and a plurality of openings may be formed in at least one of the first film or the second film. Also, the number of openings formed in both or at least one of the first film and the second film is not limited to a plurality, and may be one.
[0095] In addition, the shapes of the first opening and the second opening are linear or circular (elliptical) in each of the above-described embodiments, but are not limited thereto, and may be, for example, an S-shape, U-shape, semicircular shape, or wavy shape having curved portions, or a V-shape, X-shape, L-shape, H-shape, T-shape, W-shape, or C-shape having corners. EXAMPLES
[0096] Specific examples of the present invention will be described below, although the present invention is not limited thereto.
[0097] 1. Examination of packaging bags for spinach as a fresh produce 1-1. Manufacture of fruit and vegetable packaging and packaging for fruit and vegetable Example 1A A 25 mm thick biaxially oriented polypropylene film that had been anti-fog treated was folded and then two opposing sides were heat sealed (thermocompression bonded) to produce a packaging container 1 with inner dimensions of 200 x 400 mm. Then, this packaging container 1 was irradiated with a laser at 300 positions from the first film side with the first film facing up, to provide 300 first and second openings, each with a length L of 150 μm and a width W of 80 μm, in the first and second films. This resulted in a packaging container 1 in which the first openings and the second openings completely overlap (match) as shown in FIG. 1.
[0098] Approximately 100 g of spinach stalks were placed in this packaging container 1 and the opening was sealed by heat sealing to obtain a package 10 containing the spinach stalks.
[0099] Thereafter, the seven packages 10 were stored in a packing box 100 made of cardboard in a stacked state in the direction of gravity, thereby obtaining the fruit and vegetable package 500 of Example 1A.
[0100] The oxygen permeability A of the packaging container 1 located at the top and the oxygen permeability B of the packaging container 1 located at the bottom were measured using an oxygen permeability measuring device (manufactured by MOCON, "OX-TRAN 2 / 21"). The results were 68,000 cc / m 2 ·day·MPa(30℃·70%RH) and 35000cc / m 2 ·day·MPa (30℃·70%RH).
[0101] (Examples 2A to 5A, Comparative Example 1A) The fruit and vegetable packaging bodies 500 of Examples 2A to 5A were obtained in the same manner as in Example 1A, except that the number of packaging bodies 10 stacked in the direction of gravity was changed as shown in Table 1 and the packaging bodies 10 were stored in the packaging box 100.
[0102] 1-2.Storage of fruits and vegetables The fruit and vegetable packages 500 of the respective examples and comparative examples were stored at 20° C. for 5 days with the bottom surfaces 101 facing downward.
[0103] Furthermore, the fruit and vegetable packages 500 of each of the examples and comparative examples were also stored at 5° C. for 5 days with the bottom surface 101 moistened with moisture.
[0104] 1-3.Evaluation For the fruit and vegetable packages 10 packed in the fruit and vegetable packaging bodies 500 of each of the examples and comparative examples, the appearance, texture, taste, etc. of the fruit and vegetable packages 10 packed in the lowest position were observed after 5 days and evaluated according to the evaluation criteria shown below.
[0105] Evaluation criteria ◎ :Good ○: Fairly good △: Bad ×: Extremely bad The evaluation results are shown in Table 1.
[0106] [Table 1]
[0107] As is clear from Table 1, in the packaging body 500 of each embodiment, the relationship B / A between the oxygen permeability A of the packaging container 1 located at the top and the oxygen permeability B of the packaging container 1 located at the bottom is set to 0.5 or more and 1.0 or less, and it has been found that spinach can be stored while maintaining its appearance, texture, and taste even in the fruit and vegetable packaging body 10 located at the bottom.
[0108] In contrast, the comparative package had a B / A ratio of less than 0.5, and when the bottom surface 101 was not moistened, the appearance could be maintained, but the texture and taste could not be maintained, resulting in an unsuitability for long-term storage. Furthermore, when the bottom surface 101 was moistened, the appearance also tended to deteriorate.
[0109] 2. Examination of packaging bags for spinach (cut vegetables) as fresh produce 2-1. Manufacture of fruit and vegetable packaging and packaging for fruit and vegetable Example 1B A 25 mm thick biaxially oriented polypropylene film that had been anti-fog treated was folded and then two opposing sides were heat sealed (thermocompression bonded) to produce a packaging container 1 with inner dimensions of 200 x 170 mm. Then, this packaging container 1 was irradiated with a laser at 300 positions from the first film side with the first film facing up, to provide 300 first and second openings, each with a length L of 150 μm and a width W of 80 μm, in the first and second films. This resulted in a packaging container 1 in which the first openings and the second openings completely overlap (match) as shown in FIG. 1.
[0110] Approximately 100 g of spinach roughly chopped into pieces of approximately 4.0 cm was placed in the packaging container 1, and the opening was sealed with a heat seal to obtain a package 10 containing packaged spinach (cut vegetables).
[0111] Thereafter, the seven packages 10 were stored in a packing box 100 made of cardboard in a stacked state in the direction of gravity, thereby obtaining the fruit and vegetable package 500 of Example 1B.
[0112] The oxygen permeability A of the packaging container 1 located at the top and the oxygen permeability B of the packaging container 1 located at the bottom were measured using an oxygen permeability measuring device (manufactured by MOCON, "OX-TRAN 2 / 21"). The results were 110,000 cc / m 2 ·day·MPa(30℃·70%RH) and 58000cc / m 2 ·day·MPa (30℃·70%RH).
[0113] (Examples 2B to 5B, Comparative Example 1B) The fruit and vegetable packaging bodies 500 of Examples 2B to 5B were obtained in the same manner as in Example 1B, except that the number of packaging bodies 10 stacked in the direction of gravity was changed as shown in Table 2 and the packaging bodies 10 were stored in the packaging box 100.
[0114] 2-2.Storage of fruits and vegetables The fruit and vegetable packages 500 of the respective examples and comparative examples were stored at 20° C. for 5 days with the bottom surfaces 101 facing downward.
[0115] Furthermore, the fruit and vegetable packages 500 of each of the examples and comparative examples were also stored at 5° C. for 5 days with the bottom surface 101 moistened with moisture.
[0116] 2-3.Evaluation For the fruit and vegetable packages 10 packed in the fruit and vegetable packaging bodies 500 of each of the examples and comparative examples, the appearance, texture, taste, etc. of the fruit and vegetable packages 10 packed in the lowest position were observed after 5 days and evaluated according to the evaluation criteria shown below.
[0117] Evaluation criteria ◎ :Good ○: Fairly good △: Bad ×: Extremely bad The evaluation results are shown in Table 2.
[0118] [Table 2]
[0119] As is clear from Table 2, in the packaging body 500 of each embodiment, the relationship B / A between the oxygen permeability A of the packaging container 1 located at the top and the oxygen permeability B of the packaging container 1 located at the bottom is set to 0.5 or more and 1.0 or less, and it has been found that spinach can be stored while maintaining its appearance, texture, and taste even in the fruit and vegetable packaging body 10 located at the bottom.
[0120] In contrast, the comparative package showed a B / A ratio of less than 0.5, and when the bottom surface 101 was not moistened, the appearance could be maintained, but the texture and taste could not be maintained, resulting in an unsuitability for long-term storage. Furthermore, when the bottom surface 101 was moistened, the appearance could not be maintained either.
[0121] 3. Examination of packaging bags for cabbage (cut vegetables) as fresh produce 3-1. Manufacture of fruit and vegetable packaging and packaging for fruit and vegetable Example 1C A 25 mm thick biaxially oriented polypropylene film that had been anti-fog treated was folded and then two opposing sides were heat sealed (thermocompression bonded) to produce a packaging container 1 with inner dimensions of 200 x 170 mm. Then, this packaging container 1 was irradiated with a laser at 300 positions from the first film side with the first film facing up, to provide 300 first and second openings, each with a length L of 150 μm and a width W of 80 μm, in the first and second films. This resulted in a packaging container 1 in which the first openings and the second openings completely overlap (match) as shown in FIG. 1.
[0122] Approximately 100 g of cabbage cut into strips of approximately 0.3 cm thickness was placed in the packaging container 1, and the opening was sealed with a heat seal to obtain a package 10 containing packaged cabbage (cut vegetables).
[0123] Thereafter, the seven packages 10 were stored in a packing box 100 made of cardboard in a stacked state in the direction of gravity, thereby obtaining the fruit and vegetable package 500 of Example 1C.
[0124] The oxygen permeability A of the packaging container 1 located at the top and the oxygen permeability B of the packaging container 1 located at the bottom were measured using an oxygen permeability measuring device (manufactured by MOCON, "OX-TRAN 2 / 21"). Both were 4700 cc / m 2 ·day·MPa(30℃·70%RH) and 2500cc / m 2 ·day·MPa (30℃·70%RH).
[0125] (Examples 2C to 5C, Comparative Example 1C) The fruit and vegetable packaging bodies 500 of Examples 2C to 5C were obtained in the same manner as in Example 1C, except that the number of packaging bodies 10 stacked in the direction of gravity was changed as shown in Table 3 and the packaging bodies 10 were stored in the packaging box 100.
[0126] 3-2.Storage of fruits and vegetables The fruit and vegetable packages 500 of the respective examples and comparative examples were stored at 20° C. for 5 days with the bottom surfaces 101 facing downward.
[0127] Furthermore, the fruit and vegetable packages 500 of each of the examples and comparative examples were also stored at 5° C. for 5 days with the bottom surface 101 moistened with moisture.
[0128] 3-3.Evaluation For the fruit and vegetable packages 10 packed in the fruit and vegetable packaging bodies 500 of each of the examples and comparative examples, the appearance, texture, taste, etc. of the fruit and vegetable packages 10 packed in the lowest position were observed after 5 days and evaluated according to the evaluation criteria shown below.
[0129] Evaluation criteria ◎ :Good ○: Fairly good △: Bad ×: Extremely bad The evaluation results are shown in Table 3.
[0130] [Table 3]
[0131] As is clear from Table 3, in the packaging body 500 of each embodiment, the relationship B / A between the oxygen permeability A of the packaging container 1 located at the top and the oxygen permeability B of the packaging container 1 located at the bottom is set to 0.5 or more and 1.0 or less, and it has been found that cabbage can be stored while maintaining its appearance, texture and taste even in the fruit and vegetable packaging body 10 located at the bottom.
[0132] In contrast, the comparative package showed a B / A ratio of less than 0.5, and when the bottom surface 101 was not moistened, the appearance could be maintained, but the texture and taste could not be maintained, resulting in an unsuitability for long-term storage. Furthermore, when the bottom surface 101 was moistened, the appearance could not be maintained either. [Explanation of symbols]
[0133] 1, 1A Fruits and vegetables packaging containers (packaging containers) 2. First film member 3. Second film member 5 Storage materials 10, 10A fruit and vegetable packaging (packaging) 11 Short Side 12 Long side 21, 21a, 21b, 21e, 21o, 21p First opening 31, 31a, 31b, 31e, 31o, 31p Second opening 51 Bottom 52 Side part 53 Top 54 Opening 55 Recess 100, 100B, 100C Packing Box 101 Bottom 102 First Aspect 103 The Second Aspect 104 The Third Aspect 105 The Fourth Aspect 110 Top surface 112 First lid 113 Second Lid 114 Third Lid 115 Fourth Lid 120 Interior Space 125 Opening 130 Partitioning material 135 plots 140 Pedestal 150 space 500, 500A, 500B, 500C Fruit and vegetable packaging (packaging) B Fruits and vegetables L Length W width
Claims
1. A packaging box having a bottom surface and a plurality of side surfaces extending upright from the bottom surface; A fruit and vegetable package including a fruit and vegetable packaging container for packaging the fruit and vegetable, A quantity determination method for determining a quantity of the fruit and vegetable packages in a fruit and vegetable package in which the fruit and vegetable packages are stacked and packed in a packing box in a gravity direction, the method comprising: Each of the plurality of fruit and vegetable packaging containers has a film member made of a synthetic resin film having a plurality of openings, and the film members of each of the plurality of fruit and vegetable packaging containers are the same, The fruit and vegetable packaging container is a fruit and vegetable packaging bag formed into a bag shape by overlapping two of the film members, The oxygen permeability of the fruit and vegetable packaging container located at the top is A [cc / m 2 · day · MPa (30 ° C · 70% RH)], and the oxygen permeability of the fruit and vegetable packaging container located at the bottom is B [cc / m 2 The method for determining the number of fruit and vegetable packages to be stacked is characterized by determining the number of fruit and vegetable packages to be stacked so that B / A is 0.5 or more and 0.98 or less when the pressure in the package is [MPa (30°C, 70% RH)].
2. The quantity determining method according to claim 1 , wherein the opening is elongated.
3. The method of claim 1 , wherein the opening is circular.
4. 4. The quantity determining method according to claim 1, wherein a plurality of the openings are formed in the film member so as to be arranged in a lattice pattern.
5. The quantity determination method according to any one of claims 1 to 4, wherein the packaging box further has a top surface opposite the bottom surface, the top surface and the bottom surface are arranged so as to straddle a plurality of the side surfaces, and at least one of the top surface and the plurality of side surfaces is openable and closable.
6. 6. The quantity determining method according to claim 1, wherein an angle between the film member and the bottom surface is in the range of 0° to 15°.
Citation Information
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