JP7190222B1 - Package containing fruit and vegetables - Google Patents

Abstract

[Problem] To provide a fruit and vegetable package capable of protecting the fruit and vegetables from external shocks and keeping the freshness of the fruits and vegetables for a longer period of time even if the package is a non-tray package. A packaging body (100) includes an inner bag (10) containing a film (11), an outer bag (20) containing a film (21), and a cushion layer (22) formed of gas containing oxygen filling between the inner bag (10) and the outer bag (20). And prepare. The outer bag 20 includes a seal portion 31 integrally sealed with the inner bag 10 . The volume of the cushion layer 22 is within the range of 1.26 times or more and 1.91 times or less the volume of the material other than the fruits and vegetables P in the inner bag 10 . [Selection drawing] Fig. 1

Description

TECHNICAL FIELD The present invention relates to a fruit and vegetable package.

Conventionally, fruit and vegetable packages are known. For example, Patent Literature 1 discloses a package including a tray on which shiitake mushrooms are placed with their caps facing downward, and a film for hermetically packaging the shiitake mushrooms.

Further, Patent Document 2 discloses a packaging bag including an inner bag portion made of an inner film and an outer bag portion made of an outer film. The inner bag portion and the outer bag portion are formed by integrally thermally bonding the ends of the inner film and the outer film. An air layer is formed between the inner bag portion and the outer bag portion.

JP-A-08-119358

Japanese Unexamined Patent Application Publication No. 2004-75100

The package of Patent Document 1 uses a tray, but from the viewpoint of global environmental protection in recent years, it includes an inner bag and an outer bag that do not use a tray, as described in Patent Document 2. Packages (non-tray packages) have been developed. However, simply providing an air layer between the inner bag portion and the outer bag portion as in the package disclosed in Patent Document 2 is insufficient to protect fruits and vegetables when a strong impact is applied from the outside. There is a problem that it is not always sufficient. Moreover, it is desirable that the fruit and vegetable package can keep the freshness of the fruit and vegetable for a longer period of time.

In view of the above problems, the present invention provides a fruit and vegetable package that can protect fruit and vegetables from external impacts even if it is a non-tray package, and can keep the freshness of the fruit and vegetables for a longer period of time. intended to provide

In order to achieve the above purpose, as a result of intensive studies by the inventors of the present application,
an inner bag for containing fruits and vegetables, the inner bag including a flexible first film;
an outer bag disposed outside the inner bag and including a flexible second film;
a cushion layer formed of gas containing oxygen filling between the inner bag and the outer bag;
The inner bag includes an inner bag first seal portion in which both side ends of the first film are sealed in a palm-to-palm shape, and one end of the first film and the first seal portion in the longitudinal direction of the inner bag first seal portion. an inner bag second sealing portion in which each of the other ends of one film is sealed,
The outer bag includes an outer bag first sealing portion in which both side ends of the second film are integrally sealed with the inner bag first sealing portion in a palm-to-palm shape, and one side of the second film in the longitudinal direction. an outer bag second sealing portion in which each of an end and the other end of the second film is integrally sealed with the inner bag second sealing portion;
They have found a configuration of a fruit and vegetable package, wherein the volume of the cushion layer is in the range of 1.26 times or more and 1.91 times or less of the volume of the material other than the fruit and vegetables in the inner bag.

According to the above configuration, the volume of the cushion layer is appropriate for protecting the fruits and vegetables, so even if the package does not have a tray, it is possible to protect the fruits and vegetables from external shocks. Since the volume of the cushion layer (the amount of oxygen) is suitable for maintaining the freshness of fruits and vegetables, the freshness of fruits and vegetables can be maintained for a longer period of time.

FIG. 1 is a cross-sectional view schematically showing the structure of a fruit and vegetable package 100 according to one embodiment. FIG. 2 is a plan view of package 100 according to one embodiment. FIG. 3 is a perspective view schematically showing the configuration of the manufacturing apparatus 40 for the package 100 according to one embodiment.

An embodiment of the present invention will be described in detail below with reference to the drawings. The same or corresponding parts in the drawings are denoted by the same reference numerals, and the description thereof will not be repeated. Note that the dimensions of each member and the dimensional ratios between members in the illustrated configuration do not necessarily represent the actual dimensions and dimensional ratios.

[Structure of fruit and vegetable package]
FIG. 1 is a cross-sectional view schematically showing the structure of a fruit and vegetable package 100 (hereinafter referred to as "package 100") according to this embodiment. FIG. 2 is a plan view of the package 100 according to this embodiment.

Here, "fruits and vegetables" include vegetables and fruits. In the following, as an example of “fruits and vegetables”, “mushrooms” of “vegetables” will be explained using “shiitake mushrooms” (for example, “raw shiitake mushrooms”). "Mushrooms" such as "mushrooms" or "eryngii" may be used, "vegetables" other than "mushrooms" may be used, and "fruits" may be used.

As shown in FIG. 1 , the package 100 is a double package having an inner bag 10 and an outer bag 20 . The inner bag 10 accommodates fruits and vegetables P inside. For example, as shown in FIG. 1, two rows in the Y direction and, as shown in FIG. Inner bag 10 is made of flexible film 11 . Moreover, the outer bag 20 is made of a flexible film 21 . The outer bag 20 is arranged outside the inner bag 10 . Specifically, the outer bag 20 is formed so as to cover the outer circumference of the inner bag 10 . The package 100 also includes a cushion layer 22 made of gas containing oxygen (for example, air) that fills the space between the inner bag 10 and the outer bag 20 . In addition to the fruits and vegetables P, air is enclosed in the inner bag 10 .

As shown in FIG. 2, the package 100 is a pillow-type package. Specifically, package 100 includes seals 31, 32a and 32b. The seal portions 31, 32a, and 32b are, for example, portions where the films 11 and 21 are thermally welded, and portions where the films 11 and 21 are welded or adhered. As shown in FIG. 1, the sealing portion 31 is a portion where the both side end portions 11a and 11b of the film 11 are sealed in a palm-to-palm shape, and the both side end portions 21a and 21b of the film 21 are to be sealed in a palm-to-palm shape. This is the part where That is, both side edges 11a and 11b of the film 11 and both side edges 21a and 21b of the film 21 are integrally sealed.

Further, as shown in FIG. 2, the sealing portion 32a is formed by one end 11c of the film 11 and one side of the film 21 in the longitudinal direction of the sealing portion 31 (for example, the machine direction and the direction in which the film 11 is conveyed: X1 direction). The end 21c is the sealed portion. That is, the one end 11c of the film 11 and the one end 21c of the film 21 are integrally sealed. The seal portion 32b is a portion where the other end 11d of the film 11 in the longitudinal direction of the seal portion 31 (the end in the X2 direction) and the other end 21d of the film 21 are sealed. That is, the other end 11d of the film 11 and the other end 21d of the film 21 are integrally sealed.

Moreover, as shown in FIGS. 1 and 2, the inner bag 10 and the outer bag 20 are not heat-sealed at locations other than the seal portions 31, 32a and 32b.

The films 11 and 21 are each made of, for example, biaxially oriented polypropylene (OPP: Oriented Polypropylene) having flexibility, but other materials may be used. In this embodiment, the films 11 and 21 may be films containing biomass-based materials. For example, the films 11 and 21 are films capable of displaying the biomass mark "Biomass 10" defined by the Japan Organic Resources Association, and the films 11 and 21 each contain 10% biomass-based material. Contains more than A biomass-based material means a raw material derived from a plant. Further, in the following description, OPP containing 10% or more of biomass-based material is referred to as "green OPP". In addition, the films 11 and 21 may be films containing biomass-based materials other than films capable of displaying "biomass 10" (films containing less than 10% of biomass-based materials). It may be a film that does not contain.

Further, the oxygen permeability of the film 11 is, for example, within the range of 2394 [cm ³ /(m ² /24 h/atm)] or more and 3610 [cm ³ /(m ² /24 h/atm)] or less. value, but not limited to values within this range. The oxygen permeability of the film 21 is, for example, a value within the range of 1900 [cm ³ /(m ² /24 h/atm)] or more and 3610 [cm ³ /(m ² /24 h/atm)] or less. Yes, but not limited to values within this range.

In addition, the water vapor transmission rate of the films 11 and 22 is, for example, 5.7 [g/(m ² ·day)] or more and within the range of 10.1 [g/(m ² ·day)] or less. value, but not limited to values within this range.

Further, in the present embodiment, the volume V2 of the cushion layer 22 is in the range of 1.26 times or more and 1.91 times or less of the volume V1 other than the fruits and vegetables P in the inner bag 10 . Further, in the present embodiment, the volume V2 of the cushion layer 22 is within the range of 1.76 times or more the volume V3 of the fruits and vegetables P and 1.91 times or less the volume V1. Also, the volume V1 is larger than the volume V3. The volumes V1 to V3 are measured in a state in which the inner bag 10, the outer bag 20, and the fruits and vegetables P are submerged in water at room temperature, for example. For example, the width of the rise in the water level of a container containing water or the amount of water overflowing from the container is measured, and the volumes V1 to V3 are calculated from the width or the amount of water.

According to the above configuration, the volume V2 of the cushion layer 22 is an appropriate volume for protecting the fruits and vegetables P. Therefore, even in the non-tray package 100, the fruits and vegetables P can be protected from external impact. can. Since the volume V2 (amount of oxygen) of the cushion layer 22 has a size suitable for maintaining the freshness of the fruits and vegetables P, it is possible to prevent the fruits and vegetables from being discolored or giving off an offensive odor.

The configuration of the manufacturing apparatus 40 for the package 100 will be described with reference to FIG. FIG. 3 is a perspective view schematically showing the configuration of the manufacturing apparatus 40 for the package 100 according to one embodiment. As shown in FIG. 3 , the manufacturing device 40 includes an inner bag roller 41 , an outer bag roller 42 , a first sealing machine 43 , two nozzles 44 and a second sealing machine 45 .

The inner bag roller 41 is wound with the film 11 and supplies the band-shaped film 11 in the X1 direction. The outer bag roller 42 is arranged at a position in the Z2 direction from the inner bag roller 41 . The outer bag roller 42 is wound with the film 21 and supplies the band-shaped film 21 in the X1 direction. The first sealing machine 43 heats both side edges 11a and 11b of the film 11 and both side edges 21a and 21b of the film 21 to thermally weld them to each other. Two nozzles 44 enclose air for a predetermined time. As a result, the volume V2 of the cushion layer 22 is within the range of 1.26 times or more and 1.91 times or less of the volume V1 (hereinafter referred to as "internal volume V1") other than the fruits and vegetables P in the inner bag 10. In addition, the volume V2 of the cushion layer 22 is within the range of 1.76 times or more the volume V3 of the fruits and vegetables P and 1.91 times or less the volume V1. Further, the tip portion 44a (outlet) of the nozzle 44 is arranged, for example, in the vicinity of the second sealer 45 (the position in the X1 direction from the first sealer 43). As a result, even if air leaks in the X2 direction, the cushion layer 22 can be formed, and the volume V2 of the cushion layer 22 can be within the range of 1.26 times or more and 1.91 times or less of the volume V1.

The second sealing machine 45 thermally welds the one end 11c of the film 11 and the one end 21c of the film 21 to form the seal portion 32a. Further, the second sealing machine 45 thermally welds the other end 11d of the film 11 and the other end 21d of the film 21 to form the seal portion 32b. After forming the seal portion 32b, the second sealer 45 separates the seal portion 32b from the strip-shaped films 11 and 21, and the package 100 is completed.

Next, examples according to the present embodiment will be described with reference to Tables 1 to 9.

<Example 1-1>
Example 1-1 having an internal volume V1 of "584 ml", a cushion layer volume V2 of "736 ml", and a fruit and vegetable P volume V3 of "419 ml" was obtained.

<Example 1-2>
Example 1-2 having an internal volume V1 of "472 ml", a cushion layer volume V2 of "878 ml", and a fruit and vegetable P volume V3 of "407 ml" was obtained.

<Example 1-3>
Example 1-3 with an internal volume V1 of "470 ml", a cushion layer volume V2 of "896 ml", and a fruit and vegetable P volume V3 of "381 ml" was obtained.

<Comparative Example 1-1>
A comparative example 1-1 having an internal volume V1 of "347 ml", a cushion layer volume V2 of "693 ml", and a fruit and vegetable P volume V3 of "419 ml" was obtained.

<Comparative Example 1-2>
A comparative example 1-2 having an internal volume V1 of "569 ml", a cushion layer volume V2 of "253 ml", and a fruit or vegetable P volume V3 of "445 ml" was obtained.

(Shape retention evaluation)
First, from the applicant's Tsukuba factory in Ibaraki Prefecture, the above Examples 1-1 to 1-3 and the above Comparative Examples 1-1 and 1-2 were each shipped in a cardboard box, and the cardboard box was It arrived at the office in Nagano prefecture three days after it was shipped from the Tsukuba factory. The cardboard box was shipped from the office in Nagano Prefecture to the Tsukuba Factory in Ibaraki Prefecture on that day (three days after the date of shipment from the Tsukuba Factory), and arrived at the Tsukuba Plant in Ibaraki Prefecture the next day (four days after the date of shipment from the Tsukuba Factory). . Each raw shiitake mushroom (fruits and vegetables P) arriving at the Tsukuba Factory in Ibaraki Prefecture was photographed, and the presence or absence of shape retention was visually evaluated according to the following criteria.
O: No change in the arrangement of fruits and vegetables P in the bag is observed, and there is little air leakage from inside the bag to the outside of the bag. ×: There is a change in the arrangement of fruits and vegetables P in the bag, or , there is a lot of air leakage from the inside of the bag to the outside of the bag

As shown in Table 1, both Comparative Examples 1-1 and 1-2 were evaluated as "x". In Comparative Example 1-1, air escaped from the inside of the bag to the outside of the bag due to vibration during transportation, and the air in the cushion layer was greatly reduced. It is thought that when more air was put in, the pressure of the air increased, making it easier for the air to escape from the small gap in the seal. Inflation of the bag due to the altitude difference between Ibaraki Prefecture and Nagano Prefecture is also considered. When the air is released as in Comparative Example 1-1, there are many gaps in the cardboard, and the bags are scattered. In Comparative Example 1-2, the amount of air in the cushion layer is small, so the inner film cannot be tightened and the fruits and vegetables P cannot be fixed. Looking at the state after transportation, the arrangement of the shiitake mushrooms was disturbed in the bag due to vibration during transportation.

On the other hand, as shown in Table 1, all of Examples 1-1 to 1 to 3 were "O". Therefore, when V2/V1 is in the range of 1.26 or more and 1.91 or less, no change is observed in the arrangement of the fruits and vegetables P in the bag, and it has been found that there is little air leakage from the inside of the bag to the outside of the bag. . Further, the volume V2 of the cushion layer 22 is within the range of 1.76 times or more the volume V3 of the fruits and vegetables P and 1.91 times or less the volume V1, and the change in the arrangement of the fruits and vegetables P in the bag is observed. It was found that there was little air leakage from the inside of the bag to the outside of the bag.

(Freshness retention evaluation)
After transportation by the shape retention evaluation, the raw shiitake mushrooms (fruits and vegetables P) of Examples 1-1 to 1 and 3, Comparative Examples 1-1 and 1-2 were photographed, and whether or not freshness was maintained. was visually evaluated according to the following criteria.
O: No discoloration is observed.
x: Discoloration is observed.

As shown in Table 1, Comparative Example 1-2 was evaluated as "x". In Comparative Example 1-2, discoloration was observed in the shaft portion of the fruits and vegetables P (raw shiitake mushroom) after transportation.

As shown in Table 1, all of Examples 1-1 to 1 to 3 were "O". Therefore, at least the freshness of the fruits and vegetables P was maintained within the range of V2/V1 from 1.26 to 1.91. In addition, at least the freshness of the fruits and vegetables P was maintained within the range of V3/V1 from 1.76 to 2.35. In addition, Comparative Example 1-1 also became "◯". Therefore, it was found that the larger the volume V2 of the cushion layer, the better the freshness is maintained.

In order to construct the package according to the example, No. shown in Table 2 was used. 1 to No. 4 films were obtained. No. The film No. 1 has an oxygen permeability of 3610 [cm ³ /(m ² /24 h/atm)], a water vapor permeability of 10.1 [g/(m ² ·day)], a thickness of 18 μm, and is biomass-based. Contains 10% or more of the material. No. The film No. 2 has an oxygen permeability within the range of 2394 or more and 3218 or less [cm ³ /(m ² /24 h/atm)], and a water vapor transmission rate within the range of 5.7 or more and 8.1 or less [ g/(m ² ·day)], the thickness is 23 μm, and the biomass-based material is contained in an amount of 10% or more. No. The film No. 3 has an oxygen permeability of 2440 [cm ³ /(m ² /24 h/atm)], a water vapor permeability of 8.0 [g/(m ² ·day)], and a thickness of 15 μm. No. The film No. 4 has an oxygen permeability of 1900 [cm ³ /(m ² /24 h/atm)], a water vapor permeability of 6.6 [g/(m ² ·day)], and a thickness of 25 μm. The water vapor transmission rate was measured at a temperature of 40° C. and a humidity of 90%.

In all of Examples 2-1 to 2-5 shown in Table 3, V2/V1 is within the range of 1.26 or more and 1.91 or less, and V3/V1 is 1.76 or more and 2.35. It shall be within the following range. Also, the fruits and vegetables P to be packaged are six "raw shiitake mushrooms".

<Example 2-1>
The film 11 constituting the inner bag 10 has No. No. 3 film is used, and No. 3 film is used for the film 21 constituting the outer bag 20 . Example 2-1 was obtained using the film of No. 4.

<Example 2-2>
The film 11 composing the inner bag 10 has No. No. 1 film is used, and No. 1 film is used for the film 21 constituting the outer bag 20 . Example 2-2 was obtained using the film of No. 2.

<Example 2-3>
The film 11 composing the inner bag 10 has No. No. 1 film is used, and No. 1 film is used for the film 21 constituting the outer bag 20 . Example 2-3 was obtained using the film of No. 1.

<Example 2-4>
The film 11 composing the inner bag 10 has No. No. 2 film is used, and No. 2 film is used for the film 21 constituting the outer bag 20 . 4 films were used to obtain Examples 2-4.

<Example 2-5>
The film 11 constituting the inner bag 10 has No. No. 3 film is used, and No. 3 film is used for the film 21 constituting the outer bag 20 . Examples 2-5 were obtained using the film of No. 1.

<Comparative example>
A tray made of biaxially oriented polystyrene was placed inside, and 6 fresh shiitake mushrooms were placed on the tray and wrapped with a wrap made of polyolefin to obtain a comparative example.

(Discoloration evaluation)
After storing at 10°C for 10 days, the fresh shiitake mushrooms (fruits and vegetables P) were photographed, and the presence or absence of discoloration of the fruits and vegetables P was visually evaluated according to the following criteria. In particular, discoloration of caps and stems of raw shiitake mushrooms was evaluated.
◎ ・・・ Little discoloration 〇 ・・・ Slight discoloration × ・・・ Discoloration

As shown in Table 4, all of Examples 2-1 to 2 to 5 became "O" after 10 days. On the other hand, in the comparative example, it became "x" after 7 days. Therefore, it was found that Examples 2-1 to 2-5 were less discolored than Comparative Examples.

(withering evaluation)
After storing at 10°C for 10 days, fresh shiitake mushrooms (fruits and vegetables P) were photographed, and the presence or absence of wilting of the fruits and vegetables P was visually evaluated according to the following criteria. In particular, the degree of wilting of caps and stems of raw shiitake mushrooms was evaluated.
◎ ・・・ No wilting 〇 ・・・ Partial wilting × ・・・ Mostly wilting

As shown in Table 5, all of Examples 2-1 to 2 to 5 became "◯" or "◎" after 10 days. In particular, Examples 2-3 and 2-4 were evaluated as "A" after 10 days. On the other hand, in the comparative example, it became "x" after 7 days. Therefore, it was found that Examples 2-1 to 2 to 5 had less wilting than Comparative Examples.

(Smell evaluation)
After storing for 10 days at 10° C., the presence or absence of odor in the cushion layer 22 in Examples 2-1 to 2-5 and the presence or absence of odor in the wrap in Comparative Example were evaluated according to the following criteria.
◎ ・・・ No odor 〇 ・・・ Weak odor × ・・・ Strong odor

As shown in Table 6, in Examples 2-1 to 2 to 5, after 7 days, it became "◯" or "◎". On the other hand, in the comparative example, it became "x" after the first day. In addition, in Examples 2-2 to 2-5, the results were "◯" or "⊚" even after 10 days. In addition, in Examples 2-2 to 2-4, the result was "A" after 10 days. Therefore, it was found that Examples 2-1 to 2-5 had less offensive odor than Comparative Examples.

(Smell evaluation)
It was stored at 10° C. for 10 days, and the presence or absence of mycelia on three of the six fruits and vegetables P was checked.
〇 ・・・ No mycelia generated △ ・・・ Mycelia generated on one fruit and vegetable P × ・・・ Mycelia generated on two or more fruits and vegetables P

As shown in Table 7, in Examples 2-1 to 2 to 5, the result was "O" after 10 days. On the other hand, in the comparative example, it became "△" after 6 days, and became "×" after 7 days. Therefore, it was found that Examples 2-1 to 2 to 5 prevented the generation of hyphae compared to Comparative Examples.

(Weight evaluation)
The fruits and vegetables P were stored at 10° C. for 10 days, and the rate of change in the weight of the fruits and vegetables P from the storage start point after 10 days was measured.

As shown in Table 8, in Examples 2-1 to 2 to 5, the weight change rate was "-0.5%" after 10 days. On the other hand, in the comparative example, the weight change rate was "-2.0%" after 10 days. Therefore, it was found that Examples 2-1 to 2 to 5 had smaller weight changes than Comparative Examples.

(Oxygen concentration evaluation)
After storing for 10 days at 10° C., the oxygen concentration in the cushion layer 22 was measured in Examples 2-1 to 2-5, and the oxygen concentration in the wrap was measured in Comparative Example.
was measured.

As shown in Table 9, in Examples 2-1 to 2 to 5, the oxygen concentration became "11.1%" or higher after 10 days. On the other hand, in the comparative example, the oxygen concentration became "0.2%" or less after at least three days. Therefore, in Examples 2-1 to 2-5, it was found that the oxygen concentration was maintained as compared with the comparative example.

[Modification]
The specific example illustrated in the above embodiment is merely an example, and is not intended to limit the present disclosure to this.

(1) In the above embodiment, as shown in FIGS. 1 to 3, six fruits and vegetables are accommodated in the package, but the number of fruits and vegetables may be less than five or seven. There may be more than one.

Note that the present disclosure can also be described as follows.

[First configuration]
The fruit and vegetable package according to the first configuration includes:
an inner bag for containing fruits and vegetables, the inner bag including a flexible first film;
an outer bag disposed outside the inner bag and including a flexible second film;
a cushion layer formed of gas containing oxygen filling between the inner bag and the outer bag;
The inner bag includes an inner bag first seal portion in which both side ends of the first film are sealed in a palm-to-palm shape, and one end of the first film and the first seal portion in the longitudinal direction of the inner bag first seal portion. an inner bag second sealing portion in which each of the other ends of one film is sealed,
The outer bag includes an outer bag first sealing portion in which both side ends of the second film are integrally sealed with the inner bag first sealing portion in a palm-to-palm shape, and one side of the second film in the longitudinal direction. an outer bag second sealing portion in which each of an end and the other end of the second film is integrally sealed with the inner bag second sealing portion;
The volume of the cushion layer is in the range of 1.26 times or more and 1.91 times or less the volume of the material other than the fruits and vegetables in the inner bag.

According to the first configuration, the volume of the cushion layer is appropriate for protecting the fruits and vegetables, so that the fruits and vegetables can be protected from external impacts even in a non-tray package. Since the volume of the cushion layer (the amount of oxygen) is suitable for maintaining the freshness of fruits and vegetables, the freshness of fruits and vegetables can be maintained for a longer period of time.

[Second configuration]
In the first configuration, the oxygen permeability of the first film is 2394 [cm ³ /(m ² /24 h/atm)] or more and 3610 [cm ³ /(m ² /24 h/atm)] or less It may be a value within the range, and the oxygen permeability of the second film is 1900 [cm ³ /(m ² /24 h/atm)] or more and 3610 [cm ³ /(m ² /24 h/atm)] )] may be a value within the following range.

According to the second configuration, oxygen is supplied to the fruits and vegetables, so freshness can be maintained. Also, if the oxygen permeability is too high, the strength of the film is reduced and the transparency is reduced. However, according to the second configuration, the freshness of fruits and vegetables is maintained while maintaining the strength and transparency of the film. be able to.

[Third configuration]
In the first or second configuration, the water vapor transmission rate of the first film and the water vapor transmission rate of the ^second film are 5.7 [g/(m day)] or more and 10.1 [g/ (m ² ·day)] may be a value within the range below.

According to the third configuration, the freshness of fruits and vegetables can be maintained.

[Fourth configuration]
In any one of the first to third configurations, the volume of the cushion layer may be set within a range of 1.76 times or more and 2.35 times or less the volume of the fruit or vegetable.

According to the fourth configuration, the volume of the cushion layer can be sufficiently large with respect to the volume of the fruits and vegetables, so that the fruits and vegetables can be protected from impacts from the outside.

[Fifth configuration]
In any one of the first to fourth configurations, at least one of the first film and the second film may contain biaxially oriented polypropylene.
[Sixth configuration]
In a fifth configuration, the first film and the second film may each comprise biaxially oriented polypropylene containing biomass-based material.

According to the sixth configuration, it is possible to suppress the generation of offensive odors.

[Seventh configuration]
In any one of the first to sixth configurations, the fruits and vegetables may be mushrooms.

According to the seventh configuration, it is possible to provide a package that is a non-tray package and that can protect the mushrooms from impacts from the outside.

[Eighth configuration]
In a seventh configuration, the mushroom may be a shiitake mushroom.

According to the eighth configuration, it is possible to provide a package that is a non-tray package and that can protect the shiitake mushrooms from impacts from the outside.

10... inner bag, 11... film, 11a... side end, 11c... one end, 11d... other end, 20... outer bag, 21... film, 21a... side end, 21c... one end, 21d... other end, 22...Cushion layer, 31...Seal portion, 32a...Seal portion, 32b...Seal portion, 100...Package for fruits and vegetables

Claims (8)

fruits and vegetables,
an inner bag for containing the fruits and vegetables, the inner bag including a flexible first film;
an outer bag disposed outside the inner bag and including a flexible second film;
a cushion layer formed of gas containing oxygen filling between the inner bag and the outer bag;
The inner bag includes an inner bag first seal portion in which both side ends of the first film are sealed in a palm-to-palm shape, and one end of the first film and the first seal portion in the longitudinal direction of the inner bag first seal portion. an inner bag second sealing portion in which each of the other ends of one film is sealed,
The outer bag includes an outer bag first sealing portion in which both side ends of the second film are integrally sealed with the inner bag first sealing portion in a palm-to-palm shape, and one side of the second film in the longitudinal direction. an outer bag second sealing portion in which each of an end and the other end of the second film is integrally sealed with the inner bag second sealing portion;
A package containing fruits and vegetables, wherein the volume of the cushion layer is in the range of 1.26 times or more and 1.91 times or less of the volume of the material other than the fruits and vegetables in the inner bag. The oxygen permeability of the first film is a value within the range of 2394 [cm ³ /(m ² /24 h/atm)] or more and 3610 [cm ³ /(m ² /24 h/atm)] or less can be,
The oxygen permeability of the second film is a value within the range of 1900 [cm ³ /(m ² /24 h/atm)] or more and 3610 [cm ³ /(m ² /24 h/atm)] or less The fruit and vegetable- containing package according to claim 1. The water vapor transmission rate of the first film is a value within the range of 5.7 [g/(m ² ·day)] or more and 8.1 [g/(m ² ·day)] or less, or , 10.1 [g/(m ^day )],
The water vapor transmission rate of the second film is a value within the range of 5.7 [g/(m ² ·day)] or more and 10.1 [g/(m ² ·day)] or less. The fruit and vegetable- containing package according to claim 2. The volume of the cushion layer is in the range of 1.76 times or more the volume of the fruits and vegetables and 1.91 times or less the volume of other than the fruits and vegetables in the inner bag,
The fruit and vegetable- containing package according to any one of claims 1 to 3, wherein the volume of the substance other than the fruit and vegetable in the inner bag is larger than the volume of the fruit and vegetable. The fruit and vegetable- containing package according to any one of claims 1 to 3, wherein at least one of the first film and the second film contains biaxially oriented polypropylene. The first film and the second film comprise biaxially oriented polypropylene containing a biomass-based material ,
The thickness of the first film and the thickness of the second film are in the range of 18 μm or more and 23 μm or less,
The oxygen permeability of the first film and the oxygen permeability of the second film are 2394 [cm ³ /(m ² /24 h/atm)] or more and 3610 [cm ³ /(m ² /24 h/atm)] )] The fruit and vegetable- containing package according to claim 5 , which has a value within the following range . The fruit and vegetable- containing package according to any one of claims 1 to 3, wherein the fruit and vegetable are mushrooms. The fruit and vegetable- containing package according to claim 7, wherein the mushroom is a shiitake mushroom.

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