JP3228749U - Food packaging material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a food packaging material which is hard to stick even when a food is placed, is hard to move even when carried, and is hard to lose its shape. SOLUTION: The food packaging material is provided by embossing a large number of convex portions and / or concave portions on a surface on which food is directly placed. [Selection diagram] Fig. 1

Description

The present invention relates to a food packaging material for directly placing foods such as confectionery and rice cakes, particularly sticky foods.

Traditionally, when taking out foods that are placed directly on the food packaging material, especially foods such as confectionery, prepared foods, and cooked rice that have sticky surfaces, the food sticks to the food packaging material and the food loses its shape when it is taken out. There is a problem of doing.
Regarding this problem, for example, by using glassine paper having a fine mesh-like film of fluorine-based resin formed on the surface of one side that should be inside food packaging, cups, boxes, etc., the characteristics of the glassine paper and the fluorine-based resin can be improved. Due to the synergistic effect, a wrapping paper material for foods has been proposed in which paper and the foods do not adhere to each other in surface-adhesive foods such as cakes and raw Japanese confectionery (see Patent Document 1).

Utility Model Registration No. 30541197

However, although the food wrapping paper material described in Patent Document 1 can prevent the food from sticking to the container, the food moves during transportation and the foods collide with each other, or the food and the container collide with each other to cause the food. The problem of collapsing occurs.

The present invention has been made to solve the above problems. An object of the present invention is to provide a food packaging material that does not easily stick even when food is placed on it, does not easily move even if it is carried, and does not easily lose its shape.

The problem to be solved by the present invention is as described above, and next, the means for solving this problem will be described.

The first invention is a food packaging material characterized in that a small number of convex portions and / or concave portions are embossed on a surface on which food is directly placed.

The second invention is the first invention, wherein the convex portion and / or the concave portion is a food packaging material having a substantially circular shape in a plan view.

The third device is the first device, wherein the convex portion or / and the concave portion is composed of an elongated shape extending in one direction and an elongated shape extending in a different direction in a plan view. It is a food packaging material.

The fourth device is any of the first to third devices, wherein the food packaging material is in the form of a sheet.

The fifth device is any of the first to third devices, wherein the food packaging material is a container having a surface on which food is directly placed as a bottom plate. ..

As the effect of the present invention, the following effects are obtained.

According to the first invention, the contact area between the surface on which the food is directly placed and the food is reduced, and the food can be made difficult to stick. In addition, the surface on which the food is placed is tilted due to carrying, and even if the surface on which the food is placed is subjected to vibration or impact, the surface on which the food is placed and the food are easily caught, making it difficult for the food to move and causing the food to lose its shape.

According to the second and third devices, in addition to the effect of the first device, even if the moving direction of the placed food is irregular, the surface on which the food is placed and the food are likely to be caught.

According to the fourth device, in addition to the effects of the first to third devices, for example, a sheet can be laid according to the size of the container for storing the food and the size of the food.

According to the fifth device, in addition to the effects of the first to third devices, the contact area between the bottom plate of the container and the food is reduced, and the food can be made difficult to stick. In addition, even if the container is tilted due to the carrying of the packaging container, or if it receives vibration or impact, the bottom plate and the food are easily caught, the food is difficult to move, and the shape is not easily lost.

The plan view of the expansion formation body 11 of the container 1 of 1st Embodiment. A partially enlarged plan view of the unfolded body 11. Partially enlarged cross-sectional view of development formation body 11. A simplified perspective view showing a completed assembly state of the container 1. (A) Partially enlarged cross-sectional view of a container 1 containing food. (B) Partially enlarged cross-sectional view when the food contained in the container 1 is taken out. Top view of the sheet 100 of the second embodiment. Partially enlarged plan view of the sheet 100. A simplified perspective view showing a usage state of the sheet 100. (A) Partially enlarged cross-sectional view when food is placed on a conventional food packaging material. (B) Partially enlarged cross-sectional view when the food placed on the conventional food packaging material is taken out.

[First Embodiment]

Next, the container 1 which is the first embodiment of the present invention will be described.

The container 1 according to the present embodiment is a paperboard food packaging container for accommodating sushi. In this embodiment, a paperboard having a basis weight of 370 g / m ² is used, and the inside of the container is oil-resistant.
As shown in FIG. 4, the container 1 has side plates erected around the bottom plate 21 provided with a small number of convex portions 41.

The container 1 is formed by assembling the expansion forming body 11 shown in FIG. In the unfolded body 11 of FIG. 1, the surface inside the container is shown as the front side of the paper surface.

First, a portion constituting the container 1 will be described according to the expansion forming body 11 shown in FIG. The broken line in the figure indicates a polygonal line.

The unfolded body 11 has a rectangular bottom plate 21 and a front side plate 22 connected to the front edge of the bottom plate 21 via a fold line, and a rear side plate 23 connected to the rear edge of the bottom plate 21 via a fold line. There is. Further, the left side plate 24 is connected to the left side edge of the bottom plate 21 via a fold line, and the right side plate 25 is continuously provided to the right side edge of the bottom plate 21 via a fold line.

A front flap 30 is continuously provided on the edge of the front side plate 22 facing the bottom plate 21 via a folding line. Further, a rear flap 31 is continuously provided at the edge of the rear side plate 23 facing the bottom plate 21 via a folding line.

Auxiliary flaps 26 are connected to the front edge of the left side plate 24 via a fold line, and auxiliary flaps 27 are connected to the rear edge of the left plate 24 via a fold line. Further, an auxiliary flap 28 is continuously provided on the front edge of the right side plate 25 via a folding line, and an auxiliary flap 29 is continuously provided on the rear edge of the right plate 25 via a folding line.

The front side plate 22 and the front flap 30 are provided with a folding line extending from the left and right corners of the front side plate 22 on the bottom plate 21 side at about 45 degrees to reach the free end edge of the front flap 30. Further, the rear side plate 23 and the rear flap 31 are provided with a folding line extending from the left and right corners of the rear side plate 23 on the bottom plate 21 side at about 45 degrees to reach the free end edge of the rear flap 31.

The bottom plate 21 is embossed with a large number of round convex portions 41 except around the edges. FIG. 2 is a partially enlarged plan view of the bottom plate 21. In the present embodiment, convex portions 41 having a maximum diameter of 2 mm in a plan view are regularly provided at 1 mm intervals. The height of the convex portion 41 is about 0.8 mm. FIG. 3 is a partially enlarged cross-sectional view of the bottom plate 21.

Next, a method of creating the container 1 will be described.

In the container 1 of the present embodiment, the development forming body 11 is punched and folded from the paperboard with a flat pressure punching machine (Thomson machine), and the convex portion 41 is provided. The convex portion 41 is embossed by sandwiching the bottom plate 21 of the development forming body 11 with a letterpress or intaglio plate attached to a punching machine.

For embossing, in addition to the above flat pressure type, various processes such as embossing with a rotary punching machine, foil embossing machine, embossing with embossing without using letterpress or intaglio, etc. are appropriately adopted. it can.

Then, the folding line on the front side of the bottom plate 21 of the expansion forming body 11 is folded in a valley, and the front plate portion 22 and the front flap 30 are overlapped with the bottom plate 21. Further, the fold line formed on the front plate portion 22 and the front flap 30 extending at an angle of 45 degrees is folded back and overlapped with the front plate portion 22 and the front flap 30. Further, the folding line on the rear side of the bottom plate 21 of the expansion forming body 11 is folded in a valley, and the rear flap 31 of the rear plate portion 23 is overlapped with the bottom plate 21. Further, the folding line extending at an angle of 45 degrees formed on the rear plate portion 23 and the rear flap 31 is folded back and overlapped with the rear plate portion 23 and the rear flap 31.

Then, the auxiliary flaps 26 and 27 are folded in a valley to overlap the left side plate 24, and in this state, the left folding line of the bottom plate 21 is folded in a valley to overlap the left side plate portion 24 with the bottom plate 21. At this time, the auxiliary flap 26 and the left front side plate 22 folded back at an oblique 45 degree fold line, and the auxiliary flap 27 and the left rear side plate 23 folded back at an oblique 45 degree fold line are fixed with an adhesive or the like. Further, the auxiliary flaps 28 and 29 are valley-folded to overlap the right side plate 24, and in this state, the right folding line of the bottom plate 21 is valley-folded to overlap the right side plate portion 24 with the bottom plate 21. At this time, the auxiliary flap 28 and the right front side plate 22 folded back at an oblique 45 degree fold line, and the auxiliary flap 29 and the right rear side plate 23 folded back at an oblique 45 degree fold line are fixed with an adhesive or the like.
As a result, it becomes semi-finished and is stored in a warehouse or the like.

In use, the left side plate 24 and the right side plate 25 folded over the bottom plate 21 are erected. Then, the front side plate 22 and the rear side plate 23 fixed to the auxiliary flaps 26, 27, 28, and 29 stand up in conjunction with each other.
As a result, the sushi is placed directly on the bottom plate 21 (the surface on which the food is placed), the front flap 30 and the rear flap 31 are bent in parallel with the bottom plate 21, and a lid may be provided as appropriate to close the lid.

As described above, the container 1 of the present embodiment is provided by embossing a small number of convex portions 41 on the bottom plate 21 on which food is directly placed.

Therefore, as shown in FIG. 5 (a), the contact area between the bottom plate 21 (the surface on which the sushi is placed) of the container 1 and the sushi is reduced, and as shown in FIG. 5 (b), the sushi is stuck. It can be difficult. In particular, since sushi has small rice grains, the bottom plate 21 (the surface on which the sushi is placed) and the contact area per rice grain are reduced by a large number of convex portions 41, and when the sushi is taken out, the bottom plate 21 (the surface on which the sushi is placed) is reduced. It is possible to prevent rice grains from remaining on the surface on which sushi is placed). In addition, even if the container is tilted due to carrying, or if it is subjected to vibration or impact, the bottom plate 21 (the surface on which the sushi is placed) and the sushi are easily caught, making it difficult for the sushi to move and losing its shape. Note that FIG. 9A shows a state in which sushi is directly placed in an unprocessed container, and FIG. 9B shows a state in which sushi is taken out from the unprocessed container, and rice grains are present on the placing surface. Sticking, sushi is out of shape.

Further, the convex portion 41 has a substantially circular shape in a plan view.

Therefore, even if the placed sushi moves in an irregular direction due to vibration or impact during transportation in the container 1, the bottom plate 21 (the surface on which the sushi is placed) and the food are easily caught and do not easily lose their shape. ..

[Second Embodiment]
Next, the sheet 100, which is the second embodiment of the present invention, will be described.

As shown in FIG. 6, the sheet 100 according to the present embodiment is a sheet having a large number of convex portions 141 and 142 on the surface on which food is placed, and is laid in the container 200 as shown in FIG. It is a sheet on which raw Japanese sweets are placed directly.

In the present embodiment, a paperboard having a basis weight of 210 g / m ² is used, and the surface on which the raw Japanese sweets are placed is water-resistant.

The sheet 100 is a rectangular sheet shown in FIG. The sheet 100 is provided with a large number of convex portions 141 and 142 on the entire surface.
The convex portion 141 has an elongated shape extending forward in a plan view. In the present embodiment, the height is set to about 0.6 mm, the maximum length is 3.5 mm, and the maximum width is 2 mm.
The convex portion 142 has an elongated shape extending in the left-right direction. In this embodiment, the maximum length is set to 3 mm and the width is set to 2 mm.
Then, the convex portions 141 and the convex portions 142 are alternately and regularly provided at intervals of 2 mm.

A method of creating the sheet 100 will be described.
The sheet 100 is die-cut from the paperboard with a flat-pressure punching machine (Thomson machine), and convex portions 141 and 142 are provided. The convex portions 141 and 142 are embossed by sandwiching the sheet 100 with a letterpress or intaglio plate attached to a punching machine. As for the embossing, in addition to the above-mentioned flat pressure type, a method such as a rotary press type punching machine, a foil stamping machine, a stamping ruler, or the like can be appropriately adopted as in the first embodiment.

The sheet 100 thus created is used by laying it in the container 200. When using it, it can be cut according to the size of the box.
Then, the raw Japanese sweets may be placed on the sheet 100 and the lid may be closed.

As described above, the sheet 100 of the present embodiment is characterized in that a small number of convex portions 141 and 142 are embossed on the surface on which the food is directly placed.

For this reason, the contact area between the surface of the sheet on which the Japanese sweets are placed and the raw Japanese sweets is reduced, and the raw Japanese sweets can be made difficult to stick. In addition, even if the sheet is tilted due to carrying, or if it receives vibration or impact, the surface on which the raw Japanese sweets are placed and the raw Japanese sweets are easily caught, which makes it difficult for the raw Japanese sweets to move and lose their shape.

Further, the convex portion is composed of an elongated convex portion 141 extending in one direction and an elongated convex portion 142 extending in a different direction in a plan view.

For this reason, even if the placed raw Japanese sweets move in irregular directions due to vibration or impact during transportation, the surface on which the Japanese sweets are placed on the sheet 100 and the food are easily caught and do not easily lose their shape.

Further, the sheet 100 is in the form of a sheet.

Therefore, the sheet can be laid according to the container 200 for accommodating food.

Although the embodiments of the present invention have been described above, the technical scope of the present invention is not limited to these embodiments, and the invention clarified from the matters described in the present specification and the drawings is truly intended. It covers a wide range of technical ideas.

For example, in the first embodiment and the second embodiment, the surface on which the food is placed is a convex portion, but it may be a concave portion, or the convex portion and the concave portion may be combined.

Further, a large number of minute protrusions may be provided so as to form some pattern in a plan view.

1 Container 11 Expanded body 21 Bottom plate 22 Front plate 23 Rear plate 24 Left plate 25 Right plate 26 Auxiliary flap 27 Auxiliary flap 28 Auxiliary flap 29 Auxiliary flap 30 Front flap 31 Rear flap 41 Convex part 100 Sheet 141 Convex part 142 Convex part 200 container

Claims (5)

A food packaging material, which is provided by embossing a large number of convex portions and / or concave portions on a surface on which food is directly placed. The food packaging material according to claim 1, wherein the convex portion and / and the concave portion have a substantially circular shape in a plan view. The food packaging material according to claim 1, wherein the convex portion or / and the concave portion has an elongated shape extending in one direction and an elongated shape extending in a different direction in a plan view. The food packaging material according to any one of claims 1 to 3, wherein the food packaging material is in the form of a sheet. The food packaging material according to any one of claims 1 to 3, wherein the food packaging material is a container having a surface on which food is directly placed as a bottom plate.

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