PACKAGED FOOD AND FOOD PACKAGING METHOD

The food packaging bag design addresses the laborious nature of existing packaging methods by using a unique configuration of plastic sheets that allows for easy filling and opening, reducing manual labor and equipment needs.

JP7649527B2Active Publication Date: 2025-03-21AIWA KOGYO KK
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Patent Information

Application Number
JP2021011696
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-01-28
Publication Date
2025-03-21
Estimated Expiration
2036-08-05

AI Technical Summary

Technical Problem

Existing food packaging methods, such as sheet-shaped plastic films and envelope-shaped pillow packaging, are laborious to use, especially for small businesses packaging cooked rice foods with various ingredients, as they require manual wrapping and opening.

Method used

A food packaging bag design featuring two generally square plastic sheets with specific connection and non-connection portions, allowing for easy opening and closure, and facilitating the insertion and removal of food without the need for specialized equipment.

Benefits of technology

The packaging bag is easy to fill and open, reducing manual labor and the need for specialized equipment, making it suitable for small businesses and convenient for packaging and consuming food.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a food packaging method capable of saving time and labor for packaging and easily opening the package in opening it.SOLUTION: In a food packaging bag 1 including a side part connection part 9 in which a first sheet 2 and a second sheet 3 which are approximately square two plastic sheets are superposed and in which the first sheet 2 and the second sheet 3 are connected along sides in a first side 5 and a second side 6 adjacent thereto, a corner part connection part 10 where the first sheet 2 and the second sheet 3 are connected inside of an apex in a first corner part 4 in which the first side 5 and the second side 6 are crossed, a non-connection part 11 where the first sheet 2 and the second sheet 3 are not connected in the apex of the first corner part 4, and an opening part where the first sheet 2 and the second sheet 3 are not connected in a third side 7 and a fourth side 8 adjacent thereto, the opening part is opened to put therein a food x, and remaining sheet parts at right and left, and lower sides are folded while closing the opening part to fix folded ends with an adhesive tape or a seal.SELECTED DRAWING: Figure 11
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Description

[Technical field]

[0001] The present invention relates to a food package made of a plastic film for packaging food. [Background technology]

[0002] Cooked rice foods such as rice balls that are not wrapped in seaweed or rice balls that are already wrapped in seaweed are packaged in sheet-like plastic films as shown in Patent Documents 1 to 3. They may also be packaged in an envelope-like pillow package. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Design Registration No. 1203540 [Patent Document 2] Design Registration No. 1204008 [Patent Document 3] Utility Model Registration No. 3152459 Summary of the Invention [Problem to be solved by the invention]

[0004] In the case of sheet-like plastic films shown in Patent Documents 1 to 3, the sheets are folded while being wrapped, which makes the work time-consuming. If a dedicated wrapping device is used, packaging can be done in a short time, but many providers of cooked rice foods are small-scale businesses, and the introduction of such dedicated equipment is a heavy burden. In addition, there is a new type of seasoned rice that is becoming more popular, in which various ingredients are wrapped in rice and further wrapped in seaweed on the outside to make the whole flat. In this type of seasoned rice, many different types of products with different ingredients are often produced in small quantities, and manual packaging is more suitable than using automated equipment.

[0005] However, as mentioned above, packaging with sheet-like plastic film is time-consuming to do manually, and opening the mouth of an envelope-like pillow package and putting food inside is also a tedious task.

[0006] To provide a food packaging bag which allows food to be easily put in, does not require much effort for packaging, and can be easily opened when opened. [Means for solving the problem]

[0007] In order to solve the above problems, the food packaging bag of the present invention is formed by overlapping a first sheet and a second sheet, which are two substantially square plastic sheets, and has a side connection portion where the first sheet and the second sheet are connected along the first side and the adjacent second side, a corner connection portion where the first sheet and the second sheet are connected at a first corner where the first side and the second side intersect, inside the apex, a non-connection portion where the first sheet and the second sheet are not connected at the apex of the first corner, and an opening portion where the first sheet and the second sheet are not connected at the third side and the adjacent fourth side. Furthermore, it is preferable that the corner connection portion has a convex portion connected to the end of the side connection portion and convex toward the outside of the sheet, and a concave portion formed from the end of the convex portion toward the apex and convex toward the inside of the sheet, and that either the first side or the second side has a single layer portion where either the first sheet or the second sheet protrudes outside the side. Effect of the Invention

[0008] The food packaging bag of this invention is in the form of a square with two of the four sides open, making it easy to put food inside. When packaged, a disconnected section is formed at the apex where the first and second sheets are not connected, so the first and second sheets can be easily torn off from this section to open the bag wide. [Brief description of the drawings]

[0009] [Figure 1] FIG. 2 is a perspective view showing a food packaging bag. [Diagram 2] FIG. [Diagram 3] FIG. [Figure 4] FIG. [Diagram 5] FIG. [Figure 6] FIG. [Figure 7] FIG. [Figure 8] FIG. [Figure 9] FIG. [Figure 10] FIG. 2 is a perspective view showing a state in which food packaging bags are bundled. [Figure 11] FIG. 2 is a perspective view showing the food packaging bag in use. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] The embodiment of the present invention will be described in detail with reference to the drawings. Fig. 1 is a perspective view of a food packaging bag, Fig. 2 is a front view of the same, Fig. 3 is a rear view of the same, Fig. 4 is a plan view of the same, Fig. 5 is a bottom view of the same, Fig. 6 is a right side view of the same, Fig. 7 is a left side view of the same, Fig. 8 is an AA end view of the same, and Fig. 9 is a BB end view of the same.

[0011] Food packaging bag 1 is made up of a first sheet 2 and a second sheet 3 overlapped together. The first sheet 2 and the second sheet 3 are thin plastic sheets for food packaging, and are made of an easy-peel film that can be easily peeled off by heat welding. They are roughly the same square shape, but in this example, the right side of the first sheet 2 on the front side in the front view is about 3 to 5 mm wider than the second sheet 3.

[0012] If one of the corners of the square is designated as a first corner 4, the two sides that meet at the first corner 4 are designated as a first side 5 and a second side 6. The first side 5 and the second side 6 have connection parts where the first sheet 2 and the second sheet 3 are bonded. Meanwhile, the other two sides, a third side 7 and a fourth side 8, are not connected to the first sheet 2 and the second sheet 3 and are open. This structure is common to a paper packaging material called a burger wrap used to wrap cooked bread such as hamburgers.

[0013] The connection between the first sheet 2 and the second sheet 3 will be further described. On the first side 5 and the second side 6, a side connection portion 9 is formed in a strip shape along the side from the end portion opposite the first corner 4. This side connection portion 9 ends just before the first corner 4. A corner connection portion 10 is provided following the end point of the side connection portion 9. This corner connection portion 10 is formed on the inside of the apex of the first corner 4. Then, at the apex of the first corner, a non-connection portion 11 where the first sheet 2 and the second sheet 3 are not connected is provided outside the corner connection portion 10.

[0014] The side connection parts 9 and the corner connection parts 10 are easily peelable. This type of connection is also called an easy peel seal, and is an adhesive state in which the material will not peel off unless a certain amount of force is applied, but will easily separate if a force is applied to peel it off in an attempt to open the package. This type of connection can be made by stacking plastic sheets called easy peel films together and thermocompressing them. This type of connection can also be made with an easy peel adhesive.

[0015] In this example, the corner connection 10 is further divided into two parts. The parts connected to the ends of the side connection 9 of the first side 5 and the second side 6 are 、The convex portion 10a is a curved convex toward the outside of the sheet. Following the convex portion 10a, a concave portion 10b is formed, which is a curved convex toward the top. This concave portion 10b is a curved convex toward the inside of the sheet. With this configuration, the ends of the concave portion 10b closest to the top protrude toward the top. When an attempt is made to peel the first sheet 2 and the second sheet 3 from the non-connected portion 11 at the top, the corner connection portion 10 is reliably peeled off due to the shape of the corner connection portion 10, and the peeling progresses to the side connection portions 9 of the first side 5 and the second side 6.

[0016] In this example, either the first side or the second side has a single layer portion 12 in which either the first sheet or the second sheet protrudes outside the side. In Fig. 2, the first sheet protrudes by a width of about 3 to 5 mm outside the second side 6. By providing a single layer portion in this manner, it becomes easier to open the first sheet 2 and the second sheet 3 at the non-connected portion 11 when opening the package.

[0017] Both the first sheet 2 and the second sheet 3 are thin, transparent plastic films. The side joints 9 and the corner joints 10 may be slightly translucent depending on how they are attached, but they can be considered to be mostly transparent. Therefore, the food packaging bag 1 is also transparent overall if it is not printed.

[0018] The configurations shown in Figs. 2 to 7 are new in the field of food packaging bags, and are particularly novel and highly aesthetically pleasing as packaging bags for cooked rice foods.

[0019] Fig. 10 is a perspective view showing the food packaging bags bundled together. The food packaging bag 1 can be manufactured by cutting it out from a large continuous sheet, and when cutting it out, extensions 13 of the first sheet 2 and the second sheet 3 can be provided up to the outside of the third side 7 or the fourth side 8, and a cutting assistant line such as a perforation can be provided along the third side 7 or the fourth side 8. Then, a number of food packaging bags 1 can be stacked with the extensions 13 on top, and the upper sides of the extensions 13 can be connected with an adhesive or the like to obtain an assembly of food packaging bags 1. The extensions 13 are also provided with a hanging hole 14.

[0020] The collection of food packaging bags can be hung by passing a hook or the like through the hanging hole 14. When using, grab the food packaging bag at the front and cut it off along the cutting assistance line to take out one food packaging bag 1 as shown in Fig. 2 etc.

[0021] Next, a method of using this food packaging bag and foods packaged using the food packaging bag will be described. The third side 7 and fourth side 8 are openings where the first sheet 2 and the second sheet 3 are not connected, and these are opened to put the food x to be packaged inside. The food may be cooked bread or sweets, but cooked rice is particularly suitable. In the example of FIG. 10, cooked rice with ingredients wrapped in seaweed, known as "onigirazu," is packaged. It is wider than a triangular rice ball and has a roughly rectangular shape when viewed from the front. The two lower sides are open, making it easy to open and easy to put food in. The wide opening makes it easy to put in sticky cooked rice foods.

[0022] Then, fold the remaining sheet parts on the left, right and bottom while closing the opening, and secure the folded ends with adhesive tape or a seal. vinegar This results in the packaged food shown in Figure 11. When the food is displayed on a store shelf, if the first corner 4 is oriented upward as shown in Figure 11, the food inside can be clearly seen.

[0023] Next, the opening of the packaged food will be described. Since the first sheet 2 and the second sheet 3 are not connected at the top non-connected part 11, the corners of each sheet can be pinched with the fingers. The top of the food packaging bag 1 is opened by peeling the first sheet 2 and the second sheet 3 away from each other. The peeling that starts from the top progresses to the left and right by the recessed part 10b of the corner connection part 10, and each peeling progresses along the recessed part 10a and the side connection part to form a large opening. Since the adhesion is easily peelable, the bag can be opened easily, and irregular opening such as tearing the middle of the sheet does not occur.

[0024] The food may be removed from the large opening formed at the top. Alternatively, the food may be eaten by grabbing the unopened lower part and eating the food exposed at the top. In the case of hamburgers and the like wrapped in conventional wrap, the opening where the food was put in is reopened and the food is eaten from this side, but in the case of the packaged food of the present invention, the opposite is true and the food is eaten from the top side. The appearance when opened is also completely different from that of conventional burger wraps. There is no need to peel off the seal that secures the folded edge or to open the folded part. [Explanation of symbols]

[0025] 1.Food packaging bag 2. Sheet 1 3. Second sheet 4.First corner 5. First side 6. Second side 7. Third Side 8. Fourth Side 9. Edge connection 10. Corner connection 11. Non-connected parts 12. Single layer section 13.Extension 14. Hanging hole x.Food

Claims

1. The first sheet and the second sheet are two substantially square plastic sheets stacked together, a corner connection portion where the first sheet and the second sheet are connected along a first side and an adjacent second side by easily peelable adhesion; a corner connection portion where the first sheet and the second sheet are connected inside the apex at a first corner where the first side and the second side intersect; a non-connected portion where the first sheet and the second sheet are not connected at the apex of the first corner; and an opening portion where the first sheet and the second sheet are not connected at a third side and an adjacent fourth side, wherein the corner connection portion has a convex portion connected to the end of the side connection portion and having a convex curve facing outwardly of the sheets, and a concave portion which is a convex curve facing inwardly from the convex portion and continues to the convex portion toward the apex, and the food is packaged in a food packaging bag in which the excess sheet portions on the left, right and bottom sides when the first corners of the substantially square first and second sheets are turned up are folded while closing the opening, and the folded ends are secured with adhesive tape or a seal.

2. 2. The packaged food according to claim 1, wherein the packaged food is a rice food.

3. The first sheet and the second sheet are two substantially square plastic sheets stacked together, a corner connection portion where the first sheet and the second sheet are connected along a first side and an adjacent second side by easily peelable adhesion; a corner connection portion where the first sheet and the second sheet are connected inside the apex at a first corner where the first side and the second side intersect; a non-connected portion where the first sheet and the second sheet are not connected at the apex of the first corner; and an opening portion where the first sheet and the second sheet are not connected at a third side and an adjacent fourth side, and the corner connection portion has a convex portion connected to the end of the side connection portion and which is a convex curve facing outwardly of the sheets, and a concave portion which is a convex curve facing inwardly from the convex portion and continues to the convex portion toward the apex, the method for packaging food comprising the steps of: opening the opening to insert food, folding the remaining left and right and bottom portions of the sheets when the first corners of the substantially square first and second sheets are turned up while closing the opening, and securing the folded ends with adhesive tape or a seal.

Citation Information

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