Food packaging container

Abstract

The present invention relates to a food packaging container comprising: an inner container unit in which a food accommodating portion is formed; and an outer container unit having, in the upper surface, a container insertion groove into which the food accommodating portion of the inner container unit is inserted. The inner container unit is made of a plastic material and the outer container unit is made of a paper material. Also, the inner container unit includes a locking portion for maintaining the connection between the inner container unit and the outer container unit. Accordingly, a food packaging container made of a paper material and thus easy to sort and dispose of is provided.

Description

Food packaging containers

[0001] The present invention relates to a food packaging container, and more particularly, to a food packaging container made of paper material that is easy to separate and dispose of.

[0002] Containers, which are mainly used as packaging materials for food packaging, have the function of protecting the food from spoilage or rancidity of the contents and maintaining its appearance, and provide convenience for consumers to eat right away by allowing easy cooking using microwave ovens, etc., and quality improvement by utilizing steam exhaust structures, etc.

[0003] Currently, most food packaging containers are primarily made of plastic (PP, polypropylene). Despite being made of a single material, they are not recyclable and are discarded due to the risk of contamination from the contents. Furthermore, since these containers are difficult to print on, separate packaging materials (sleeves, boxes, labels, lids, etc.) are used, generating unnecessary packaging waste.

[0004] For this reason, paper containers are being used. Paper containers are made by bonding paper and film together to block oxygen and moisture.

[0005] Paper and film containers can dramatically reduce plastic usage compared to existing 100% plastic trays.

[0006] In addition, the paper can be recycled by allowing users to separate and dispose of film and paper contaminated by the contents after use.

[0007] However, conventional containers made of paper and film are also highly likely to lose strength and cause quality problems such as deformation and warping when exposed to moisture and moisture from the external environment due to the nature of the paper material, and to have poor adhesion to the inner film.

[0008] In addition, depending on the adhesive state of the film, paper, and film, users may feel inconvenienced in separating and disposing of the waste, which may reduce the effectiveness of separating and disposing of waste for recycling.

[0009] The present invention relates to a food packaging container, and provides a food packaging container made of paper material that is easy to separate and dispose of.

[0010] The technical problems to be solved by the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present invention belongs from the description below.

[0011] The food packaging container of the present invention is

[0012] An inner container unit in which a food receiving portion is formed; and

[0013] An outer container unit having a container insertion groove formed on the upper surface into which the food receiving portion of the inner container unit is inserted,

[0014] The above inner container unit is made of plastic material,

[0015] The above outer container unit is made of paper material,

[0016] The inner container unit may include a catch that maintains the connection between the inner container unit and the outer container unit.

[0017] In the food packaging container of the present invention, the outer container unit may include an outer bottom portion formed as a plane perpendicular to the vertical direction, an outer frame portion having a container insertion hole formed at a position located above the outer bottom portion and facing the outer bottom portion, and a side wall portion having an upper portion connected to the outer frame portion and a lower portion connected to the outer bottom portion, wherein the container insertion groove is formed as a space surrounded by the outer bottom portion and the side wall portion, and the hook portion may be formed to be hooked to the outer frame portion.

[0018] In the food packaging container of the present invention, when a direction perpendicular to the up-down direction is referred to as a first direction, and a direction perpendicular to the up-down direction and the first direction is referred to as a second direction, the external frame portion may include a first frame having the first direction as a longitudinal direction, a first frame having the first direction as a longitudinal direction and spaced apart in the second direction with the first frame and the container insertion hole interposed therebetween, a third frame having the second direction as a longitudinal direction, and a fourth frame having the second direction as a longitudinal direction and spaced apart in the first direction with the third frame and the container insertion hole interposed therebetween.

[0019] In the food packaging container of the present invention, the side wall portion may include a first side wall having an upper portion connected to the first frame and a lower portion connected to the external bottom portion, a second side wall having an upper portion connected to the second frame and a lower portion connected to the external bottom portion, a third side wall having an upper portion connected to the third frame and a lower portion connected to the external bottom portion, and a fourth side wall having an upper portion connected to the fourth frame and a lower portion connected to the external bottom portion.

[0020] In the food packaging container of the present invention, the side wall portion may further include a fifth side wall having a lower end connected to an external bottom surface, one side supported by the first side wall, and the other side supported by the third side wall, a sixth side wall having a lower end connected to an external bottom surface, one side supported by the second side wall, and the other side supported by the third side wall, a seventh side wall having a lower end connected to an external bottom surface, one side supported by the second side wall, and the other side supported by the fourth side wall, and an eighth side wall having a lower end connected to an external bottom surface, one side supported by the fourth side wall, and the other side supported by the first side wall.

[0021] In the food packaging container of the present invention, the first side wall, the second side wall, the third side wall, and the fourth side wall may have protrusions formed on the upper sides of both ends to be supported by the inner surfaces of the fifth side wall, the sixth side wall, the seventh side wall, and the eighth side wall, and the fifth side wall, the sixth side wall, the seventh side wall, and the eighth side wall may have wing portions formed on the lower sides of both ends to be supported by the inner surfaces of the first side wall, the second side wall, the third side wall, and the fourth side wall.

[0022] In the food packaging container of the present invention, the first frame, the second frame, the third frame, and the fourth frame may be provided in a plane shape perpendicular to the vertical direction.

[0023] In the food packaging container of the present invention, the inner container unit may include the food receiving portion, an inner frame portion connected to the upper end of the food receiving portion and covering the upper surface and outer surface of the outer frame portion, and the hanging portion formed on the inside of the inner frame portion and hanging on the lower surface of the outer frame portion.

[0024] In the food packaging container of the present invention, the hanging portion may be provided in multiple numbers, and the plurality of hanging portions may be provided so as to hang at least two on the bottom surface of each of the first frame, the second frame, the third frame, and the fourth frame.

[0025] In the food packaging container of the present invention, the first frame, the second frame, the third frame, and the fourth frame may be formed by folding and overlapping a plurality of pieces of paper, and the hanging portion may fix the overlapping pieces of paper.

[0026] In the food packaging container of the present invention, a convex portion or a concave portion may be formed on the upper surface of the inner frame portion.

[0027] In the food packaging container of the present invention, the material of the inner container unit may include at least one of PP, PET, and EVOH polymers.

[0028] In the food packaging container of the present invention, the food receiving portion may be divided into a plurality of spaces.

[0029] In the food packaging container of the present invention, the thickness of the inner container unit may be formed to be 0.2 mm to 1.0 mm.

[0030] In the food packaging container of the present invention, the material of the outer container unit may include at least one of SBS, FBB, and white paperboard.

[0031] In the food packaging container of the present invention, the inner container unit may include an inner bottom portion having a plane shape perpendicular to the vertical direction, and an inner side wall portion having a lower end joined to the inner bottom portion, and the food receiving portion may be formed as a space surrounded by the inner bottom portion and the inner side wall portion.

[0032] In the food packaging container of the present invention, the outer container unit is provided in a plane shape perpendicular to the vertical direction and includes an outer bottom portion whose upper surface faces the bottom surface of the inner bottom portion, and an outer side wall portion whose lower surface is connected to the outer bottom portion and surrounds the outer surface of the inner side wall portion, and the upper end of the inner side wall portion and the upper end of the outer side wall portion may be curled together to form an upper portion of the inner side wall portion as the hanging portion.

[0033] In the food packaging container of the present invention, a separation groove may be formed on the upper part of the inner side wall.

[0034] The food packaging container of the present invention may be made of paper material so that it can be easily separated and disposed of.

[0035] The food packaging container of the present invention is less likely to be deformed even when exposed to moisture and water from an external environment, and can minimize warping of the container even when deformed due to the use of a mixture of different materials.

[0036] The food packaging container of the present invention can substantially maximize the feasibility of recycling by making it easy for the user to separate and dispose of the container.

[0037] Figure 1a is a perspective view showing one embodiment of a food packaging container of the present invention.

[0038] Figure 1b is a perspective view showing another embodiment of a food packaging container of the present invention.

[0039] Figure 2a is an exploded perspective view showing one embodiment of a food packaging container of the present invention.

[0040] Figure 2b is an exploded perspective view showing another embodiment of a food packaging container of the present invention.

[0041] Figure 3a is a perspective view showing one embodiment of the external container unit.

[0042] Figure 3b is a perspective view showing another embodiment of the external container unit.

[0043] Figure 4 is a development diagram illustrating one embodiment of an external container unit.

[0044] Figure 5 is a development diagram illustrating another embodiment of the external container unit.

[0045] Figure 6 is a development diagram illustrating another embodiment of the external container unit.

[0046] Figure 7 is a cross-sectional view taken along line AA' of Figure 1b.

[0047] Figure 8 is an exploded perspective view showing another embodiment of a food packaging container of the present invention.

[0048] Figure 9 is a perspective view showing another embodiment of a food packaging container of the present invention.

[0049] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. Throughout this process, the sizes and shapes of components depicted in the drawings may be exaggerated for clarity and convenience. Furthermore, terms specifically defined in consideration of the structure and operation of the present invention may vary depending on the intentions or practices of the user or operator. Definitions of these terms should be based on the overall content of this specification.

[0050] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms “center,” “upper,” “lower,” “left,” “right,” “vertical,” “horizontal,” “inner,” “outer,” “one side,” “other side,” etc., is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is normally placed when used, and is only for the purpose of explaining and briefly explaining the present invention, and does not suggest or imply that the indicated device or element must have a specific orientation and be configured or operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0051] FIG. 1A is a perspective view showing one embodiment of a food packaging container of the present invention. FIG. 1B is a perspective view showing another embodiment of a food packaging container of the present invention. FIG. 2A is an exploded perspective view showing one embodiment of a food packaging container of the present invention. FIG. 2B is an exploded perspective view showing another embodiment of a food packaging container of the present invention. FIG. 3A is a perspective view showing one embodiment of an outer container unit. FIG. 3B is a perspective view showing another embodiment of the outer container unit. FIG. 4 is an exploded view showing one embodiment of an outer container unit. FIG. 5 is an exploded view showing another embodiment of an outer container unit. FIG. 6 is an exploded view showing another embodiment of an outer container unit. FIG. 7 is a cross-sectional view taken along line AA' of FIG. 1B. FIG. 8 is an exploded perspective view showing another embodiment of a food packaging container of the present invention. Figure 9 is a perspective view showing another embodiment of a food packaging container of the present invention.

[0052] In FIGS. 1A to 9, the z-axis direction may be an up-down direction in the following description, the x-axis direction may be a first direction, and the y-axis direction may be a second direction.

[0053] Hereinafter, the food packaging container of the present invention will be described in detail with reference to FIGS. 1a to 9.

[0054] As shown in FIG. 1a and FIG. 2a, the food packaging container of the present invention,

[0055] An internal container unit (100) in which a food receiving portion (110) is formed; and

[0056] It may include an external container unit (200) having a container insertion groove (250) formed on the upper surface into which the food receiving portion (110) of the internal container unit (100) is inserted.

[0057] The inner container unit (100) may be made of a plastic material, and the outer container unit (200) may be made of a paper material.

[0058] The food packaging container of the present invention may be provided with a plastic tray as the inner container unit (100) and a paper frame as the outer container unit (200). The plastic tray provided as the inner container unit (100) may be manufactured to have a minimum thickness and may be easily separated and discharged by being attached to the paper frame provided as the outer container unit (200) without adhesive.

[0059] The material of the inner container unit (100) may include one or more of PP (polypropylene), PET (polyethylene terephthalate), and EVOH (ethylene vinyl alcohol) polymers. The thickness of the inner container unit (100) may be formed to be 0.2 mm to 1.0 mm. Various design structures may be inserted to reinforce the strength and provide functionality to the inner container unit (100).

[0060] The design structure can be applied to both the sealing surface and the side surface, and can be formed with a minimum thickness (less than 0.25T) that enables the implementation of functions such as a steam exhaust structure. The inner container unit (100) can be provided in various forms such as general / transparent, multi-layer, etc. depending on the distribution method and cooking method of the packaging.

[0061] The outer container unit (200) serves to support the inner container unit (100). The material of the outer container unit (200) may be selected from various paper types (SBS, FBB, white paper, etc.) depending on the type of food, cooking method, storage method, etc. Alternatively, the material may be selected in consideration of water resistance, strength, and printability.

[0062] The material of the outer container unit (200) may be coated with an eco-friendly water-based coating agent on the outer surface to enhance water resistance and strength in order to prevent deterioration of the quality of paper materials due to exposure to moisture during the food manufacturing process and distribution. For example, it may be paper coated with an eco-friendly water-based coating agent using an aqueous composition based on an ethylene (meth) acrylic acid copolymer. The coated paper may have a blocking temperature of 70°C or higher, an adhesive temperature of 150°C or lower, a water resistance of 5 g / ㎡ or lower, and a moisture permeability of 500 g / ㎡·day or lower.

[0063] The material of the above external container unit (200) may include one or more of SBS, FBB, and white cardboard.

[0064] The inner container unit (100) may include a catch (130) that maintains the connection between the inner container unit (100) and the outer container unit (200). Since the food packaging container of the present invention is connected to the inner container unit (100) and the outer container unit (200) only by mechanical connection by the catch (130) without a separate chemical bonding means, the degree of connection does not change even after long-term storage and cooking, and the user can easily separate and discharge the container after eating.

[0065] As illustrated in FIG. 3a, the external container unit (200) includes an external bottom portion (210) formed as a plane perpendicular to the vertical direction, an external frame portion (220) having a container insertion hole (220a) formed at a position located above the external bottom portion (210) and facing the external bottom portion (210), and a side wall portion (230) having an upper portion connected to the external frame portion (220) and a lower portion connected to the external bottom portion (210), and the container insertion groove (250) may be formed as a space surrounded by the external bottom portion (210) and the side wall portion (230), and the catch portion (130) may be formed to catch on the external frame portion (220). For example, the external bottom portion (210) may be provided in a rectangular planar shape or a polygonal planar shape. The side wall portion (230) may have its lower end fixed to the external bottom portion (210) and its upper end fixed to the external frame portion (220). The external frame portion (220) may be provided in a closed loop shape. For example, an area facing the external bottom portion (210) in a plane perpendicular to the vertical direction may be formed as a container insertion hole (220a).

[0066] Specifically, the external frame part (220) may include a first frame (221) having the first direction as the longitudinal direction, a first frame (221) having the first direction as the longitudinal direction and spaced apart in the second direction with the first frame (221) and the container insertion hole (220a) interposed therebetween, a third frame (223) having the second direction as the longitudinal direction, and a fourth frame (224) having the second direction as the longitudinal direction and spaced apart in the first direction with the third frame (223) and the container insertion hole (220a) interposed therebetween. For example, the external frame part (220) may be provided in a closed loop shape of a rectangle having the first direction and the second direction as sides. That is, both ends of the first frame (221) and the second frame (222) and both ends of the third frame (223) and the fourth frame (224) may be connected to each other.

[0067] As illustrated in FIG. 4, the side wall portion (230) may include a first side wall (231) having an upper portion connected to the first frame (221) and a lower portion connected to the external bottom portion (210), a second side wall (232) having an upper portion connected to the second frame (222) and a lower portion connected to the external bottom portion (210), a third side wall (233) having an upper portion connected to the third frame (223) and a lower portion connected to the external bottom portion (210), and a fourth side wall (234) having an upper portion connected to the fourth frame (224) and a lower portion connected to the external bottom portion (210).

[0068] As shown in FIGS. 1b, 2b, 3b, 5 and 6, the side wall portion (230) includes a fifth side wall (235) having a lower end connected to the external bottom portion (210) and one side supported by the first side wall (231) and the other side supported by the third side wall (233), a sixth side wall (236) having a lower end connected to the external bottom portion (210) and one side supported by the second side wall (232) and the other side supported by the third side wall (233), a seventh side wall (237) having a lower end connected to the external bottom portion (210) and one side supported by the second side wall (232) and the other side supported by the fourth side wall (234), and a lower end connected to the external bottom portion (210) and one side supported by the fourth side wall (234) and the other side supported by the first It may further include an eighth side wall (238) supported on the side wall (231).

[0069] The food packaging container of the present invention maximizes the durability of the container by adding four sides to the side of the container insertion groove rather than a rectangular parallelepiped, thereby enabling deformation of the container due to warping, expansion, shrinkage, etc. and external impact to be well dispersed.

[0070] The first side wall (231), the second side wall (232), the third side wall (233) and the fourth side wall (234) may have protrusions (231a, 231b, 232a, 232b, 233a, 233b, 234a, 234b) formed on the upper side of both ends to be supported on the inner surface of the fifth side wall (235), the sixth side wall (236), the seventh side wall (237) and the eighth side wall (238).

[0071] The fifth side wall (235), the sixth side wall (236), the seventh side wall (237) and the eighth side wall (238) may have wing portions (235a, 235b, 236a, 236b, 237a, 237b, 238a, 238b) formed on the inner surfaces of the first side wall (231), the second side wall (232), the third side wall (233) and the fourth side wall (234) at the lower ends thereof.

[0072] The food packaging container of the present invention has protrusions (231a, 231b, 232a, 232b, 233a, 233b, 234a, 234b) and wing portions (235a, 235b, 236a, 236b, 237a, 237b, 238a, 238b) formed simultaneously, so that the first side wall (231), the second side wall (232), the third side wall (233), the fourth side wall (234), the fifth side wall (235), the sixth side wall (236), the seventh side wall (237), and the eighth side wall (238) intersect with each other, so that when manufacturing an external container unit (200), after cutting in an unfolded view such as FIG. 5 or FIG. 6, the container shape can be maintained without a separate adhesive.

[0073] As described above, the first frame (221), the second frame (222), the third frame (223), and the fourth frame (224) can be provided in a plane shape perpendicular to the vertical direction.

[0074] As illustrated in FIG. 7, the inner container unit (100) may include the food receiving portion (110), an inner frame portion (120) connected to the upper end of the food receiving portion (110) and covering the upper surface and outer surface of the outer frame portion (220), and the hanging portion (130) formed on the inside of the inner frame portion (120) and hung on the lower surface of the outer frame portion (220).

[0075] As illustrated in FIGS. 4 and 5, the first frame (221), the second frame (222), the third frame (223), and the fourth frame (224) may be provided in multiples. In this case, the first frame (221), the second frame (222), the third frame (223), and the fourth frame (224) may be formed by folding and overlapping a plurality of pieces of paper, and the catch (130) may fix the overlapping pieces of paper. As illustrated in FIG. 6, in the case of paper made of a material with high rigidity, the first frame (221), the second frame (222), the third frame (223), and the fourth frame (224) may be provided as a single piece.

[0076] The food packaging container of the present invention is provided to a food producer with the upper part of the food receiving portion (110) open, and the food producer can place food in the food receiving portion (110), then cover the upper surface of the food receiving portion (110) with a sealing film and apply heat to the inner frame portion (120) to seal it.

[0077] At this time, since tension is applied to the inner frame portion (120) and the outer frame portion (220), the first frame (221), the second frame (222), the third frame (223), and the fourth frame (224) are formed by folding and overlapping a plurality of pieces of paper, thereby preventing deformation due to tension.

[0078] The first frame (221), the second frame (222), the third frame (223), and the fourth frame (224) may be provided in multiple numbers.

[0079] The above-mentioned hooking portion (130) may be provided in multiple numbers, and the plurality of hooking portions (130) may be provided so that two or more of them are hooked to the bottom surface of each of the first frame (221), the second frame (222), the third frame (223), and the fourth frame (224).

[0080] A convex portion (121) or a concave portion may be formed on the upper surface of the inner frame portion (120). By pressing the convex portion (121) or the concave portion, the inner container unit (100) can be easily separated from the outer container unit (200).

[0081] As shown in FIGS. 8 and 9, in another embodiment, the food packaging container of the present invention may be as follows.

[0082] The above inner container unit (100') may include an inner bottom portion (110') having a planar shape perpendicular to the vertical direction, and an inner side wall portion (120') whose lower end is joined to the inner bottom portion (110'). The food receiving portion may be formed as a space surrounded by the inner bottom portion (110') and the inner side wall portion (120'). For example, the space surrounded by the inner bottom portion (110') and the inner side wall portion (120') may be formed in a rectangular parallelepiped shape.

[0083] The above-described external container unit (200') may be provided in a planar shape perpendicular to the vertical direction and may include an external bottom portion (210') whose upper surface faces the bottom surface of the internal bottom portion (110'), and an external side wall portion (220') whose lower surface is coupled to the external bottom portion (210') and surrounds the outer surface of the internal side wall portion. For example, a space surrounded by the external bottom portion (210') and the external side wall portion (220') may be formed in a rectangular parallelepiped shape corresponding to a space surrounded by the internal bottom portion (110') and the internal side wall portion (120').

[0084] The upper portions of the inner side wall portion (120') and the outer side wall portion (220') may be curled together to form the upper portion of the inner side wall portion as the catch portion. The portion formed by curling may be formed into a closed loop shape, as shown in Fig. 9.

[0085] The food can be sealed by placing the food in the food receiving portion, covering the portion formed by curling with a film, and then heat-sealing to combine the film with the inner container unit (100').

[0086] As shown in Fig. 8, a separation groove (121') may be formed at the upper end of the inner side wall portion (120'). The portion where the separation groove (121') is formed may have a lower height of the inner side wall portion (120') due to the separation groove (121'). Specifically, the height of the lower end of the separation groove (121') may be the sum of the height of the inner side wall portion (120') after curling and the curled thickness.

[0087] While the embodiments of the present invention have been described above, they are merely exemplary, and those skilled in the art will appreciate that various modifications and equivalent embodiments are possible. Therefore, the true technical protection scope of the present invention should be defined by the following claims.

[0088] [Explanation of symbols]

[0089] 100...Inner container unit 110...Food receiving unit

[0090] 120...inner frame part 121...convex part

[0091] 130...Hanging part 200...External container unit

[0092] 210...External bottom part 220...External frame part

[0093] 220a...container insertion hole 221...first frame

[0094] 222...2nd frame 223...3rd frame

[0095] 224...Frame 4 230...Side wall

[0096] 231...First side wall 232...Second side wall

[0097] 233...3rd side wall 234...4th side wall

[0098] 231a, 231b, 232a, 232b, 233a, 233b, 234a, 234b... protrusions

[0099] 235...5th side wall 236...6th side wall

[0100] 237...7th side wall 238...8th side wall

[0101] 235a, 235b, 236a, 236b, 237a, 237b, 238a, 238b...wings

[0102] 250... container insertion groove

Claims

1. An internal container unit in which a food receiving portion is formed; and An outer container unit having a container insertion groove formed on the upper surface into which the food receiving portion of the inner container unit is inserted, The above inner container unit is made of plastic material, The above outer container unit is made of paper material, A food packaging container, wherein the inner container unit includes a catch that maintains the connection between the inner container unit and the outer container unit.

2. In paragraph 1, The above external container unit is, An external bottom surface formed as a plane perpendicular to the vertical direction, An external frame portion having a container insertion hole formed at a position located above the external bottom portion and facing the external bottom portion; The upper part includes a side wall part connected to the external frame part and the lower part includes a side wall part connected to the external bottom part. The above container insertion groove is formed as a space surrounded by the outer bottom portion and the side wall portion, A food packaging container in which the above-mentioned hook portion is formed to be hooked to the above-mentioned outer frame portion.

3. In paragraph 2, The direction perpendicular to the up-down direction is called the first direction, When the direction perpendicular to the vertical direction and the first direction is called the second direction, The above outer frame part, A first frame having the first direction as the longitudinal direction, A first frame spaced apart in the second direction with the first direction being the longitudinal direction and the first frame and the container insertion hole interposed therebetween; A third frame having the second direction as the longitudinal direction, A food packaging container comprising a fourth frame spaced apart in the first direction with the second direction being the longitudinal direction and the third frame and the container insertion hole interposed therebetween.

4. In paragraph 3, The above side wall portion, A first side wall having an upper portion connected to the first frame and a lower portion connected to the external bottom portion; A second side wall having an upper portion connected to the second frame and a lower portion connected to the external bottom portion; A third side wall having an upper portion connected to the third frame and a lower portion connected to the external bottom portion; A food packaging container comprising a fourth side wall, the upper portion of which is connected to the fourth frame, and the lower portion of which is connected to the external bottom portion.

5. In paragraph 4, The above side wall portion, A fifth side wall having a lower portion connected to the outer bottom portion, one side supported by the first side wall, and the other side supported by the third side wall; A sixth side wall having a lower portion connected to the outer bottom surface, one side supported by the second side wall, and the other side supported by the third side wall; A seventh side wall having a lower portion connected to the outer bottom surface, one side supported by the second side wall, and the other side supported by the fourth side wall; A food packaging container further comprising an eighth side wall, the lower portion of which is connected to the outer bottom surface, one side of which is supported by the fourth side wall, and the other side of which is supported by the first side wall.

6. In paragraph 5, The first side wall, the second side wall, the third side wall and the fourth side wall have protrusions formed on the upper sides of both ends to be supported on the inner surfaces of the fifth side wall, the sixth side wall, the seventh side wall and the eighth side wall, A food packaging container in which the fifth side wall, the sixth side wall, the seventh side wall, and the eighth side wall have wing portions formed on the lower sides of both ends and supported on the inner surfaces of the first side wall, the second side wall, the third side wall, and the fourth side wall.

7. In paragraph 3, The first frame, the second frame, the third frame, and the fourth frame are provided in a plane shape perpendicular to the vertical direction, The above inner container unit is, The above food receiving section, An inner frame part connected to the upper part of the food receiving part and covering the upper surface and outer surface of the outer frame part; A food packaging container including a hook formed on the inside of the inner frame portion and hooked to the bottom surface of the outer frame portion.

8. In paragraph 7, The above-mentioned hanging part is provided in multiples, A food packaging container, wherein the plurality of hanging parts are provided so as to be hung at least two times on the bottom surface of each of the first frame, the second frame, the third frame, and the fourth frame.

9. In paragraph 7, The first frame, the second frame, the third frame, and the fourth frame are formed by folding and overlapping a plurality of pieces of paper, A food packaging container in which the above-mentioned hanging part fixes overlapping paper.

10. In paragraph 7, A food packaging container having a convex or concave portion formed on the upper surface of the inner frame portion.

11. In paragraph 1, A food packaging container, wherein the material of the inner container unit includes at least one of PP, PET, and EVOH polymers, and the thickness of the inner container unit is formed to be 0.2 mm to 1.0 mm.

12. In paragraph 1, A food packaging container wherein the food receiving portion is divided into a plurality of spaces.

13. In paragraph 1, A food packaging container, wherein the material of the outer container unit includes at least one of SBS, FBB, and white paperboard.

14. In paragraph 1, The above inner container unit is, An inner bottom surface having a plane shape perpendicular to the vertical direction, The lower portion includes an inner side wall portion joined to the inner bottom portion, The above food receiving portion is formed by a space surrounded by the inner bottom portion and the inner side wall portion, The above external container unit is, An external bottom portion provided in a plane shape perpendicular to the vertical direction and having an upper surface facing the lower surface of the inner bottom portion, The lower part comprises an outer side wall portion that is connected to the outer bottom portion and surrounds the outer surface of the inner side wall portion, A food packaging container in which the inner side wall portion and the upper part of the outer side wall portion are curled together to form the upper part of the inner side wall portion as the hanging portion.

15. In paragraph 1, A food packaging container having a separation groove formed on the upper part of the inner side wall.

Images