KR20150085562A - Pack for preserving freshness, food packing container, and food delivery container - Google Patents

Abstract

According to an embodiment of the present invention, a pack for preserving freshness comprises: a carrier wherein chlorine dioxide is absorbed; a storage unit storing the carrier; and a control unit provided in at least a partial region of the storage unit and capable of controlling an amount of a gaseous state of the chlorine dioxide emitted to the outside of the storage unit in accordance with a kind of food.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a freshness preservation pack, a food packaging container, and a food transportation container,

The present invention relates to a freshness preservation pack, a food packaging container, and a food transportation container.

Generally, it is known that chlorine dioxide has strong sterilizing power, oxidizing power, deodorizing ability and sterilizing power about 2.5 times stronger than other chlorinated disinfectants. In addition, since chlorine dioxide does not react with organic compounds, it does not generate organohalogen compounds such as carcinogenic trihalomethanes (THMs), haloacetic solution seeds (HAAs), and haloacetonitriles (HANs) It is widely used as a disinfectant and deodorant, and is widely known as an environmentally friendly disinfectant because it is rapidly decomposed in the natural environment due to sunlight or temperature and has no persistence.

Such chlorine dioxide can be produced through various methods such as disclosed in Japanese Patent Laid-Open No. 1997-0704339, and studies are being conducted to maintain the freshness of food for a long time using the chlorine dioxide.

Patent Document 1: JP-A-1997-0704339

A freshness preservation pack capable of preserving the freshness of food through chlorine dioxide, a food packaging container having the same, and a food transportation container.

The task of the present application is not limited to the above-mentioned problems, and another task which is not mentioned can be clearly understood by a person skilled in the art from the following description.

According to an aspect of the present invention, there is provided a method for producing chlorine dioxide; A storage unit for storing the carrier; And an adjusting unit provided at least in a part of the storage unit and capable of adjusting the amount of the chlorine dioxide released to the outside of the storage unit in a gaseous state according to the kind of the food.

The carrier may be adsorbed with chlorine dioxide together with the chlorine dioxide.

The carrier can adsorb the chlorine dioxide without adsorbing chlorine.

The area of the storage part overlapped with the control part may be made of LDPE or LLDPE.

The controller may include a first cover to an n-th cover (n is a natural number greater than 1) to cover the area of the storage part where the chlorine dioxide in the gaseous state can be released, And at least one of the n-th cover may be removed from the regulating portion.

The first cover to the nth cover are attached to the surface of the storage part by an adhesive, and each of the first cover and the nth cover is removable from the surface of the storage part.

Each of the first cover and the nth cover may be torn in a boundary region of each cover.

A hole is formed on the surface of the region of the storage portion overlapped with the regulating portion, and the hole is capable of releasing the gaseous chlorine and can prevent passage of the carrier.

The controller may include a first cover to an n-th cover (n is a natural number greater than 1) to cover the area of the storage part where the chlorine dioxide in the gaseous state can be released, And at least one of the n-th cover may be removed from the regulating portion.

The first cover to the nth cover are attached to the surface of the storage part by an adhesive, and each of the first cover and the nth cover is removable from the surface of the storage part.

Each of the first cover and the nth cover may be torn in a boundary region of each cover.

And the hole density of at least two of the first cover to the n-th cover may be different from each other.

Wherein the storage unit has a partition for partitioning the first storage space to the nth storage space (n is a natural number greater than 1), the first storage space for storing the carrier, and the gas state (N is a natural number greater than 1) attached to the discharge portion so as to overlap with the region of the opened one side, and a discharge portion made of a material from which chlorine dioxide of the chlorine dioxide is discharged. And the first cover to the n-th cover and the area of the discharge portion overlapping the barrier rib region may be attached by an adhesive.

Wherein the storage unit has a partition for partitioning the first storage space to the nth storage space (n is a natural number greater than 1), the first storage space for storing the carrier, and the gas state (N is a natural number greater than 1) attached to the discharge portion so as to overlap with the region of the opened one side, and a discharge portion made of a material from which chlorine dioxide of the chlorine dioxide is discharged. And the first cover and the nth cover may be fused with the region of the discharge portion overlapping the barrier rib region.

Wherein the storage unit has a partition for partitioning the first storage space to the nth storage space (n is a natural number greater than 1), the first storage space for storing the carrier, and the gas state (N is a natural number greater than 1) attached to the discharge portion so as to overlap with the region of the opened one side, and a second cover And the first cover to the n-th cover and the area of the discharge portion overlapping the barrier rib region may be attached by an adhesive.

Wherein the storage unit has a partition for partitioning the first storage space to the nth storage space (n is a natural number greater than 1), the first storage space for storing the carrier, and the gas state (N is a natural number greater than 1) attached to the discharge portion so as to overlap with the region of the opened one side, and a second cover And the first cover and the nth cover may be fused with the region of the discharge portion overlapping the barrier rib region.

According to another aspect of the present invention, there is provided a food packaging container having therein a freshness preservation pack according to an aspect of the present invention.

According to still another aspect of the present invention, there is provided a food transportation container having a freshness preserving pack therein according to one aspect of the present invention.

The freshness preservation pack, the food packaging container, and the food transportation container according to the embodiment of the present invention can maintain the freshness of the food including the carrier on which the chlorine dioxide is adsorbed.

The freshness preservation pack according to the embodiment of the present invention can control the amount of chlorine dioxide released according to the type of food, and the food packaging container and the food transportation container having the freshness preservation pack can maintain freshness according to the food to be packed or transported .

The effects of the present application are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the following description.

1 and 2 show a freshness preservation pack according to an embodiment of the present invention.
3 shows an example of an electrolytic apparatus for producing chlorine dioxide in a gaseous state.
4 is a graph showing the permeability of various materials to the gaseous chlorine dioxide gas.
Fig. 5 shows a section of freshness preservation pack of Fig. 1;
6 and 7 show freshness preservation packs according to another embodiment of the present invention.
8 and 9 show a freshness preservation pack according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It is to be understood, however, that the appended drawings illustrate the present invention in order to more easily explain the present invention, and the scope of the present invention is not limited thereto. You will know.

Also, the terms used in the present application are used only to describe certain embodiments and are not intended to limit the present invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

1 and 2 show a freshness preservation pack according to an embodiment of the present invention. 1 and 2, the freshness preservation pack according to the embodiment of the present invention includes a carrier 110, a storage unit 120, and an adjustment unit 130.

Chlorine dioxide is adsorbed on the carrier 110. Chlorine dioxide can be produced by a variety of methods. Chlorine dioxide can be produced mainly by reduction of chlorates (ClO ₃ ^- ) or by oxidation of chlorites (ClO ₂ ^- ) and can be prepared by the following reaction schemes.

Scheme 1

2NaClO ₃ + H ₂ SO ₄ + SO ₂ ? 2ClO ₂ + 2NaHSO ₄

Reaction 1 is a reduction method of chlorate by sulfuric acid, and SO ₂ as a reducing agent can increase the yield and purity of chlorine dioxide.

Scheme 2

5NaClO ₂ + 4HCl ↔ 4ClO ₂ + 5NaCl + 2H ₂ O

Reaction formula 2 is a method of oxidizing chlorite, and hydrochloric acid, acetic acid, nitric acid, lactic acid, or the like can be used as an acid for oxidizing chlorite.

Scheme 3

_{2NaClO 2 + Cl 2 → 2ClO 2} + 2NaCl

Scheme 3 is an example of the manner of chlorite oxidation by chlorine.

Scheme 4

2NaClO ₂ + HOCl? 2ClO ₂ + NaCl + NaOH

Scheme 4 is another example of the manner in which chlorite is oxidized by chlorine.

Scheme 5

NaClO ₂ + H ⁺ (weak acid) ↔ HClO ₂

Scheme 5 is a method of obtaining acidified sodium chlorite.

Scheme 6

_{2NaClO 3 + 4HCl → 2ClO 2 +} 2NaCl + Cl 2 + 2H 2 O

Reaction Scheme 6 is a method of obtaining chlorine dioxide by large-scale facilities such as a salt refining facility, a salt electrolysis facility, a sulfur dioxide generating facility, and an industrial manufacturing method which requires a large investment. Chlorine can be produced together with chlorine dioxide. When chlorine dioxide is generated according to the reaction formula (6), not only chlorine dioxide but also chlorine can be adsorbed to the carrier (110).

In addition to this method, gaseous chlorine dioxide can be produced through electrolysis. 3 is an example of an electrolytic apparatus 111 for producing chlorine dioxide in a gaseous state.

3, sodium chlorite (NaClO ₂ ) is injected through the electrolyte inlet 111e of the main body 111a, and chlorine dioxide (ClO ₂ ) gas is discharged through the outlet 111f.

The conductive film 111b may be formed of a proton conductive material inside the body 111a and one or more anode layers 111c may contact one side of the conductive film 111b. The cathode layer 111d can contact the other side of the electroconductive film 111b opposite to the one side. The anode layer 111c causes an oxidation reaction with sodium chlorite, which is an electrolyte, and the cathode layer 111d causes a reduction reaction.

Sodium chlorite (NaClO2) injected through the electrolyte inlet 111e is composed of sodium chlorite (NaClO2) salt and water (H2O). The sodium chlorite (NaClO2) salt is converted into chlorine dioxide (ClO2) gas, sodium ion (Na +) and electron (e) by the oxidation reaction of the anode layer 111c and water is converted into the oxidation reaction of the anode layer 111c (O 2) gas, hydrogen ions (H +), and electrons (e).

The chlorine dioxide (ClO 2) gas and the oxygen (O 2) gas are discharged to the outside through the gas outlet 112, and the sodium ion (Na ⁺ ) and the hydrogen ion (H ⁺ ) are passed through the electroconductive film And moves to the cathode layer 111d.

At this time, water (H2O) moves together with sodium ions (Na ⁺ ) and hydrogen ions (H ⁺ ). The hydrogen ions (H ⁺ ) migrating to the cathode layer 111d are generated as hydrogen by a reduction reaction with the cathode layer 111d and the sodium ions (Na ⁺ ) are combined with OH ^- of water (H2O) (NaOH) is generated and discharged through the surplus gas outlet 111g.

The electrochemical catalyst of the cathode layer 111d and the anode layer 111c promotes the oxidation reaction of the anode layer 111c and the reduction reaction of the cathode layer 111d and therefore the conductive film 111b and the cathode layer 111d, The distance d between the layers 111c can be eliminated.

Since such a gap serves as a resistance for interrupting the flow of current, both sides of the electroconductive film 111b are brought into contact with the anode layer 111c and the cathode layer 111d to form a gap between the electroconductive film 111b and the anode layer 111c And the gap between the electroconductive film 111b and the negative polarity, it is possible to efficiently obtain chlorine dioxide by reducing power consumption required for electrolysis.

Unlike the electrolytic apparatus 111 of FIG. 3, when the cathode layer 111d and the anode layer 111c are separated from the electroconductive film 111b, sodium chloride (NaCl) . ≪ / RTI > In this case, electrolysis of sodium chloride may cause chlorine to cause harm to human body.

On the other hand, in the case of the electrolytic apparatus 111 of FIG. 3, since there is no gap between the conductive film 111b and the anode layer 111c and the cathode layer 111d, the efficiency of chlorine dioxide generation using electrolysis can be improved . As a result, it is not necessary to add sodium chloride, so that damage caused by chlorine can be prevented.

Since the anode layer 111c and the cathode layer 111d are in contact with both sides of the electroconductive film 111b as described above, the supply unit 110 of the chlorine dioxide fumigation apparatus according to the embodiment of the present invention can supply chlorine dioxide Lt; / RTI >

As described above, since chlorine dioxide can be generated without generating chlorine through electrolysis, the carrier 110 can also adsorb chlorine dioxide without adsorbing chlorine.

In an embodiment of the present invention, the carrier 110 may be implemented by various materials. For example, the support 110 may be made of at least one selected from among sepiolite, zeolite, silica, alumina, and silica alumina, but is not limited thereto.

Next, the storage unit 120 and the control unit 130 of FIG. 1 and FIG. 2 will be described.

The storage unit 120 stores the carrier 110. The storage unit 120 of FIG. 1 stores a carrier 110 in one body 121. The storage unit 120 of FIG. 2 includes a first body 123 having a carrier 110, And a second body 125 surrounding the body 123. At this time, the first body 123 may be disposed on the second body.

The region of the storage part 120 overlapping with the regulating part 130 may be made of LDPE or LLDPE, and LDPE or LLDPE may increase the permeability of the gaseous chlorine dioxide . LDPE and LLDPE permeate the gaseous chlorine dioxide but can prevent the carrier 110 from leaking out of the storage part 120.

4 is a graph showing the permeability of various materials to gaseous chlorine dioxide. The abscissa of the graph in Fig. 4 represents the time during which gaseous chlorine dioxide is permeated, and the ordinate represents the permeation amount of chlorine dioxide in a gaseous state.

As shown in FIG. 4, the permeability of LDPE and LLDPE to gaseous chlorine dioxide (ClO ₂ ) is higher than that of other materials (PS: Polyvinyl chloride, HDPE: Poly Lactic Acid, BOPP : Biaxially Oriented Polypropylene, Nylon, PET: Polyethylene phthalate, EVA: Ethylene Vinyl Acetate, EVOH: Ethylene Vinyl Alcohol).

As shown in FIG. 1, when the carrier 110 is stored in the body 121, the body 121 region overlapping the regulating unit 130 may be made of LDPE or LLDPE. When the carrier 110 is stored in the first body 123 and the first body 123 is disposed in the second body 125 as shown in FIG. 2, the first body 123 may be made of LDPE or LLDPE have.

1 and 2 may be provided in at least a portion of the storage unit 120 and may control the amount of chlorine dioxide released to the outside of the storage unit 120 in a gaseous state depending on the type of food Do. The control unit 130 may be provided on the outer surface of the body 121 in the case of the storage unit 120 of FIG. 1 and may be provided on the outer surface of the second body 125 of the storage unit 120 of FIG. .

1 and 2, the regulating unit 130 includes a first cover to an n-th cover (n is a natural number greater than 1) C1 to Cn, (120). At this time, at least one of the first cover to the nth cover (C1 to Cn) may be removed from the regulating part (130) according to the type of the food.

That is, the freshness preservation pack according to the embodiment of the present invention can control the amount of chlorine dioxide released from the carrier 110 to the outside of the storage part 120 according to the type of food. The amount of chlorine dioxide released must also be adjusted according to the type of food, since the type of food depends on the freshness maintenance period, the transportation environment (transportation temperature, transportation period, etc.), and the type of bacteria that spoil the food.

For example, if a large amount of chlorine dioxide is needed to maintain freshness, the amount of chlorine dioxide emission can be increased by increasing the number of covers the user is removing.

1 and 2, the adjusting unit 130 includes first to fourth covers C1 to C4, but it is not limited thereto and the number of covers may be four or more.

The first cover to the nth cover C1 to Cn are attached to the surface of the storage part 120 by an adhesive agent and each of the first cover to the nth cover C1 to Cn is attached to the surface of the storage part 120 Lt; / RTI > At this time, the adhesive usually has an adhesive strength enough to hold the first cover to the nth cover (C1 to Cn) attached to the surface of the storage part 120, (C1 to Cn) is peeled off from the surface of the storage unit 120,

On the other hand, each of the first cover to the nth cover (C1 to Cn) may be torn in the boundary region of each cover. 5, the boundary area of each cover may be attached to the surface of the storage part 120, and the area other than the boundary area may be separated from the surface of the storage part 120. [

Depending on the type of food, the at least one cover may be torn from the surface of the storage part 120 if the user pulls at least one of the first to nth cover (C1 to Cn). The structure of the first cover to the nth cover (C1 to Cn) can be applied to the freshness preservation pack of FIG.

6 and 7, the area of the storage part 120 overlapped with the control part 130 is the same as that of the storage part 120, And a chlorine dioxide gas can be transmitted through the hole 127 to the outside of the storage unit 120 from inside the storage unit 120. [

6 and 7, a hole 127 is formed in the surface of the storage part 120, and the hole 127 is capable of discharging gaseous chlorine dioxide, You can prevent passage. The holes 127 may be formed by various methods. For example, the holes 127 may be formed by a laser punching method.

The control unit 130 includes a storage unit 120 having a hole 127 through which the chlorine dioxide gas can be discharged, including a first cover to an nth cover (n is a natural number greater than 1) . At least one of the first cover to the nth cover (C1 to Cn) may be removed from the regulating part 130 depending on the type of the food.

The area of the hole 127 per unit area may be varied and the area of the hole 127 may vary depending on the number of the holes 127 and the diameter of the hole 127 . Also, the hole densities of at least two of the first cover to the n-th cover (C1 to Cn) may be different from each other. For example, the hole density corresponding to the first cover C1 region and the hole density corresponding to the second cover C2 region may be different from each other. According to the difference of the hole density, the amount of chlorine dioxide emission according to the type of food can be finely controlled.

6, the first to nth covers C1 to Cn are attached to the surface of the storage part 120 by an adhesive agent, and each of the first to nth covers C1 to Cn is stored May be removable from the surface of the portion 120.

Also, as shown in Fig. 7, each of the first cover to the n-th cover (C1 to Cn) may be torn in the boundary region of each cover.

Since the relationship between the first cover to the nth cover (C1 to Cn) and the adhesive has been described above, a description thereof will be omitted. Also, since the first cover to the nth cover (C1 to Cn) which can be torn in the boundary region has been described above, a description thereof will be omitted.

6 and 7, a hole 127 is formed in the body 121 of FIG. 1, and although not shown, a hole 127 is formed in the second body 125 of FIG. 2 It is possible.

8 and 9 show a freshness preservation pack according to another embodiment of the present invention. 8, the storage unit 120 includes a first storage space R1 to an nth storage space Rn (where n is a natural number greater than 1) in which the carrier 110 is stored and one side is opened. As shown in FIG. At this time, the storage unit 120 may be made of a material which can not transmit the gaseous chlorine dioxide.

The freshness preservation pack according to another embodiment of the present invention as shown in FIG. 8 further includes a discharge unit 140. The discharge unit 140 includes a partition wall 129 covering the opened side, It can be made of material that is released. The material of the discharge part 140 may be LDPE or LLDPEE.

The control unit 130 includes a first cover to an nth cover (n is a natural number greater than 1) attached on the discharge unit 140 so as to overlap with an open side area, The area A of the discharge part 140 and the first cover to the nth cover can be attached by an adhesive. At this time, the region B2 corresponding to one open side of the first cover to the nth cover may be separated from the emitting portion 140.

Since the gaseous chlorine dioxide reduces the adhesive ability of the adhesive, unlike the other embodiment of the present invention, when the adhesive is applied to the area B 2, the chlorine dioxide passing through the discharge part 140 causes the adhesive Can be reduced.

On the other hand, in another embodiment of the present invention, since there is an adhesive in the region B1 corresponding to the region A of the emitting portion 140 among the first to nth cover regions, and no adhesive is present in the region B2 The adhesive agent between the region A and the region B1 is not affected by the chlorine dioxide and the adhesive force can be maintained.

The area A of the discharge part 140 overlapping with the area of the partition wall 129 and the area B1 of the first cover to the nth cover corresponding to the area A may be fused to each other instead of the adhesive At this time, the area B2 corresponding to one side of the area of the first cover to the nth cover may be separated from the emitting part 140.

At least one of the first cover to the nth cover is removed according to the food, so that chlorine dioxide gas can be supplied to the food to be stored.

On the other hand, the freshness preservation pack of Fig. 9 differs from the freshness preservation pack of Fig. 8 in that a hole 127 through which gaseous chlorine can pass through the discharge portion 140 is formed. Accordingly, the discharge part 140 of FIG. 9 may be made of a material through which gaseous chlorine dioxide can permeate or may be made of a material through which gaseous chlorine dioxide can not permeate.

The remaining components of FIG. 9 have been described above with reference to FIG. 8, and a description thereof will be omitted.

The freshness preservation pack according to the embodiments of the present invention may be provided in a food container such as a paper box or a food container such as a steel container.

It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or scope of the invention as defined in the appended claims. . Therefore, the above-described embodiments are to be considered as illustrative rather than restrictive, and the present invention is not limited to the above description, but may be modified within the scope of the appended claims and equivalents thereof.

The carrier (110)
In the storage unit 120,
Body 121
The first body 123,
The second body 125,
The hole (127)
The control unit 130,
The first cover to the n-th cover (C1 to Cn)
The first storage space (R1) to the nth storage space (Rn)
The partition wall 129,
The discharge part 140,

Claims (18)

A carrier on which chlorine dioxide is adsorbed;
A storage unit for storing the carrier; And
And a control unit which is provided in at least a part of the storage unit and adjusts the amount of the chlorine dioxide released to the outside of the storage unit in a gaseous state depending on the type of food,
. ≪ / RTI >
The method according to claim 1,
Wherein the carrier is adsorbed with chlorine in addition to the chlorine dioxide.
The method according to claim 1,
Wherein the carrier is adsorbed by the chlorine dioxide without adsorbing chlorine.
The method according to claim 1,
Wherein the area of the storage part overlapped with the regulating part is made of LDPE or LLDPE.
5. The method of claim 4,
Wherein the regulating portion includes a first cover to an n-th cover (n is a natural number greater than 1) to cover the region of the storage portion in which the gaseous chlorine dioxide can be released,
Wherein at least one of the first cover and the nth cover is removed from the regulating part according to the kind of the food.
6. The method of claim 5,
Wherein the first cover to the nth cover are attached to the surface of the storage part by an adhesive,
Wherein each of the first cover and the nth cover is removable from a surface of the storage portion.
6. The method of claim 5,
Wherein each of the first cover and the n-th cover is torn in a boundary region of each cover.
The method according to claim 1,
A hole is formed in the surface of the region of the storage portion overlapped with the regulating portion,
Wherein the hole allows release of the gaseous chlorine in the gaseous state and prevents passage of the carrier.
9. The method of claim 8,
Wherein the regulating portion includes a first cover to an n-th cover (n is a natural number greater than 1) to cover the region of the storage portion in which the gaseous chlorine dioxide can be released,
Wherein at least one of the first cover and the nth cover is removed from the regulating part according to the kind of the food.
10. The method of claim 9,
Wherein the first cover to the nth cover are attached to the surface of the storage part by an adhesive,
Wherein each of the first cover and the nth cover is removable from a surface of the storage portion.
10. The method of claim 9,
Wherein each of the first cover and the n-th cover is torn in a boundary region of each cover.
10. The method of claim 9,
Wherein at least two cover regions of the first cover and the nth cover have different hole densities.
The method according to claim 1,
The storage unit has a partition for partitioning the first storage space to the nth storage space (n is a natural number larger than 1)
Further comprising a discharge part made of a material which releases the gaseous chlorine dioxide on the partition wall so as to cover the open side,
(N is a natural number greater than 1) attached to the discharge portion so as to overlap with the open side region,
Wherein the first cover and the nth cover are attached by an adhesive agent to the area of the discharging part overlapping with the partition wall area.
The method according to claim 1,
The storage unit has a partition for partitioning the first storage space to the nth storage space (n is a natural number larger than 1)
Further comprising a discharge part made of a material which releases the gaseous chlorine dioxide on the partition wall so as to cover the open side,
(N is a natural number greater than 1) attached to the discharge portion so as to overlap with the open side region,
And the first cover and the nth cover are fused together with the region of the discharge portion overlapping with the partition wall region.
The method according to claim 1,
The storage unit has a partition for partitioning the first storage space to the nth storage space (n is a natural number larger than 1)
Further comprising: a discharge portion having a hole through which the gaseous chlorine dioxide can pass on the partition wall so as to cover the open side,
(N is a natural number greater than 1) attached to the discharge portion so as to overlap with the open side region,
Wherein the first cover and the nth cover are attached by an adhesive agent to the area of the discharging part overlapping with the partition wall area.
The method according to claim 1,
The storage unit has a partition for partitioning the first storage space to the nth storage space (n is a natural number larger than 1)
Further comprising: a discharge portion having a hole through which the gaseous chlorine dioxide can pass on the partition wall so as to cover the open side,
(N is a natural number greater than 1) attached to the discharge portion so as to overlap with the open side region,
And the first cover and the nth cover are fused together with the region of the discharge portion overlapping with the partition wall region.
A food packaging container having a freshness preserving pack as set forth in any one of claims 1 to 16 therein.
A food-conveying container having the freshness preservation pack as set forth in any one of claims 1 to 16 therein.

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