Food packaging bags

Abstract

To provide a food packaging bag capable of stably transporting food such as sandwiches without causing any damage, regardless of vibration during transportation.SOLUTION: A food packaging bag comprises a front film, and a back film overlapping the front film. According to the front film and the back film, a knob part is formed at one end thereof by a first seal part, and a second seal part extending toward the other end from each of ends of the first seal part in a lengthwise direction and extending in a direction of separating from each other is formed; and a storage part is formed between opposing faces of the front film and the back film that are surrounded with the first seal part and the second seal part, and an opening of the storage part is formed at the other end.SELECTED DRAWING: Figure 1

Description

Technical Field

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[0005] , , , , , , <(0000002)><(0000003)><(0000004)>The present invention relates to a bag for food packaging. <(0000005)>

Background Art

Prior Art Documents

Patent Documents

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0007] Therefore, sandwich packaging bags are made slightly larger than the sandwiches they contain, and are designed to prevent excessive tensile stress from being applied to the heat-sealed portion when a sandwich is placed inside.

[0008] When a sandwich is placed inside the sandwich packaging bag, there is some slack in the front and back sheets, causing the sheets to slightly ripple and form wrinkles D. Furthermore, a straight heat-sealed portion C is positioned in the center of the side of the sandwich packaging bag, with a slightly pointed triangular cross-section (see Figure 10).

[0009] On the other hand, food products such as sandwiches are packed in food packaging bags at factories and then placed in transport boxes, which are then delivered to retail stores by truck or other means. Inside the transport boxes, the food packaging bags containing the sandwiches are tightly packed together, and as mentioned above, the wrinkles D and heat-sealed parts C on the sides are positioned in a slightly pointed manner.

[0010] Therefore, vibrations during transportation to each retail store can cause wrinkles and heat-sealed sections on the sides of the food packaging bags to catch on each other, resulting in the bags shaking violently and potentially damaging the food stored inside, especially soft foods such as sandwiches.

[0011] The present invention provides a food packaging bag that can reliably transport food items such as sandwiches by virtually preventing damage caused by vibrations during transport. [Means for solving the problem]

[0012] The food packaging bag of the present invention is It has a front film and a back film superimposed on the front film, The front film and the back film are integrated at one end by a first sealing portion to form a tab, and are also integrated at a second sealing portion that extends from each end of the first sealing portion toward the other end and in a direction away from each other. A storage compartment is formed between the opposing surfaces of the front film and the back film, which are surrounded by the first and second sealing compartments, and an opening for the storage compartment is formed at the other end. [Effects of the Invention]

[0013] In the food packaging bag of the present invention, when food is inserted into the storage compartment through the opening, the outer film is lifted upward by the food, and the inner film deforms upward along the shape of the bottom surface of the food. This deformation of the outer and inner films causes the flap pieces formed on the outside of the second sealing portion of the outer and inner films to automatically lift upward.

[0014] Furthermore, once the food has been placed inside the storage compartment of the food packaging bag, the flap pieces on both sides will be in an upright position, generally aligned with the sides of the food packaging bag containing the food, and there is no need to perform any separate operation to align the flap pieces with the sides of the food packaging bag.

[0015] As described above, food packaging bags containing food are covered on both sides by flap pieces. Therefore, even when food packaging bags containing food are placed in a transport box with the bags tightly packed together on both sides and then transported by truck, the bags will not snag on each other, preventing excessive shaking and allowing for stable transport without damaging the food stored inside.

[0016] Furthermore, food packaging bags containing food are covered on both sides by flaps, so wrinkles and other imperfections are not noticeable, allowing them to be displayed neatly on shelves in retail stores.

Brief Description of the Drawings

[0017] [Figure 1] It is a plan view showing the bag for food packaging of the present invention. [Figure 2] (a) It is a sectional view taken along line I-I of FIG. 1. (b) It is a sectional view taken along line II-II of FIG. 1. [Figure 3] It is a perspective view showing the usage instructions of the bag for food packaging. [Figure 4] It is a perspective view showing the bag for food packaging with food already packaged. [Figure 5] It is a schematic view showing the state where the bag for food packaging with food already packaged is packed in a transport box. [Figure 6] It is a perspective view showing the method of opening the storage part of the bag for food packaging with food already packaged. [Figure 7] It is a perspective view showing the state where the storage part of the bag for food packaging with food already packaged is opened. <……>(原文此处“ [Figure 8] ”可能有误,推测为多余标记,暂按原样保留)It is a plan view showing another example of the bag for food packaging of the present invention. [Figure 9] [[ID=…]](推测此处“ [Figure 9] ”应为多余标记,暂按原样保留) It is a side view showing a conventional bag for food packaging with food already packaged. [Figure 10] It is a front view showing a conventional bag for food packaging with food already packaged.

Modes for Carrying Out the Invention

[0018] An example of the bag for food packaging of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, the bag for food packaging A has a front film 1 and a back film 2 of the same shape and the same size in a planar square shape, which are overlapped. The front film 1 and the back film 2 are configured to be fused and integrated with each other by heating. The front film 1 and the back film 2 do not necessarily need to be in a planar square shape, and may be in a rectangular shape such as a rectangular shape or a rhombus shape.

[0019] Furthermore, a first sealing portion 3 is formed at the corner of one end of the front film 1 and the back film 2, integrating the front and back films 1 and 2. At the corner of the front and back films 1 and 2, the first sealing portion 3 is formed connecting the edges 11(21) and 12(22) of the front and back films 1 and 2, dividing the corner of the front and back films 1 and 2 into a triangular section, and the triangular section divided by the first sealing portion 3 is formed into a pinch 4. Note that the first sealing portion 3 only needs to reach the vicinity of the edges 11(21) and 12(22) of the front and back films 1 and 2, and does not need to reach the edges 11(21) and 12(22) of the front and back films 1 and 2. The first sealing portion 3 is formed by the thermal deformation of the front film 1, and the outer surface of the back film 2 is a smooth surface.

[0020] The tab 4 is configured such that the front film 1 and the back film 2 are separated from each other, and by pulling the front and back films 1 and 2 that make up the tab 4 in a direction that separates them from each other, the food S stored in the storage section A1 of the food packaging bag A can be removed. In the food packaging bag A, the lower left side of Figure 1 is considered one end and the upper right side is considered the other end.

[0021] Second sealing portions 5, 5 are formed from each of the longitudinal ends of the first sealing portion 3 toward the other end, thereby integrating the front and back films 1 and 2. The second sealing portions 5, 5 are formed so as to gradually separate from each other from one end toward the other end. The other ends of the second sealing portions 5, 5 only need to reach the vicinity of the edges 13(23) and 14(24) that are opposite to the edges 11(21) and 12(22) of the first sealing portion 3, and do not need to reach the edges 13(23) and 14(24) of the front and back films 1 and 2. The second sealing portions 5 are formed by thermal deformation of the front film 1, and the outer surface of the back film 2 is a smooth surface.

[0022] A storage section A1 for storing food is formed between the opposing surfaces of the front and back films 1 and 2, which are surrounded by the first sealing section 3 and the second sealing sections 5, 5. An opening A2 of the storage section A1 is formed in the portion of the storage section A1 facing the first sealing section 3, that is, between the other ends of the second sealing sections 5, 5. Then, the front and back film portions outside the second sealing sections 5, 5 form the side flap pieces F, F.

[0023] Third seal portions 6, 6 are formed along the edges 11(21), 12(22) of the front and back films 1, 2 from the connecting portions 31, 31 where the second seal portions 5, 5 of the first seal portion 3 are connected, thereby integrating the front and back films 1, 2, and the flaps F, F on both sides are integrated at their outer edges, and the front and back films constituting the flaps F, F on both sides are configured to displace integrally.

[0024] The third sealing portion 6, 6 only needs to reach the vicinity of the edges 13(23) and 14(24) of the front and back films 1 and 2, and does not need to reach the edges 13(23) and 14(24) of the front and back films 1 and 2. The third sealing portion 6 is formed by thermal deformation of the front film 1, and the outer surface of the back film 2 is a smooth surface.

[0025] Next, the instructions for using food packaging bag A will be explained. An example will be given of how to store a sandwich as food S inside food packaging bag A. The sandwich S is formed in a shape that has a triangular side and a height dimension that matches or is slightly shorter than the length of the first seal portion 3 between one end of the second seal portions 5, 5 (between the connecting portions 31, 31) (a triangular prism shape with a right-angled isosceles triangle base turned on its side).

[0026] First, as shown in Figure 3, open the opening A2 of the storage section A1 of the food packaging bag A, and insert the sandwich S into the storage section A1 through the opening A2 until its insertion end S4 reaches approximately the first seal section 3, with the bottom surface S1 facing the back film 2 and the inclined surface S2 facing the front film 1.

[0027] As a result, the outer film 1 of the food packaging bag A is lifted upward by the inclined surface S2 of the sandwich S, and the inner film 2 bends upward along both side edges S11, S11 of the bottom surface S1 of the sandwich S.

[0028] Since the second sealing portions 5, 5 are formed to be spaced apart from each other from one end to the other, the upward lifting of the front film 1 and the upward bending of the back film 2 along both side edges S11, S11 of the bottom surface S1 of the sandwich S cause the flap pieces F, F on both sides to be displaced in a direction that approaches the side surface of the sandwich S, with their other ends moving upward with the connecting portions 31, 31 of the first sealing portion 3 as the pivot point, and the front film 1 is bent along the second sealing portions 5, 5 to become upright along the side surfaces S3, S3 of the sandwich S.

[0029] Subsequently, as shown in Figure 4, by folding the front and back films 1 and 2 on the side of the opening A2 that is closer to the sandwich S stored in the storage compartment A1 of the food packaging bag A, the opening A2 of the storage compartment A1 of the food packaging bag A can be closed, and the sandwich S can be stored in a sealed state inside the storage compartment A1 of the food packaging bag A.

[0030] In this state, the flap pieces F, F of the food packaging bag A stand upright along the sides S3, S3 of the sandwich S, together with a portion of the backing film that is continuous with the flap pieces F, F, and cover the sides S3, S3 of the sandwich S. Moreover, the portion of the backing film covering the sides S3, S3 of the sandwich S and the exposed surfaces of the flap pieces F, F are formed as smooth, wrinkle-free surfaces.

[0031] As shown in Figure 5, the food packaging bags A containing the sandwiches S (hereinafter sometimes referred to as "pre-packaged food packaging bags A'") are packed into transport boxes G, front to back and side to side, and delivered to each retail store by truck or other means. During this transport, as described above, the sides of the pre-packaged food packaging bags A' are almost entirely covered by flap pieces F, F and a portion of the backing film 2 continuous with these flap pieces F, F, forming a smooth surface. Therefore, the pre-packaged food packaging bags A' contained within the transport boxes G do not get caught on each other, and the unforeseen situation of the pre-packaged food packaging bags A' shaking excessively due to interference with each other caused by vibrations during transport can be largely suppressed, allowing the sandwiches S inside the food packaging bags A to be transported to each retail store without damage.

[0032] Furthermore, as mentioned above, since the pre-packaged food packaging bags A' contained in the transport box are less likely to interfere with each other due to vibrations during transport, it becomes possible to pack the pre-packaged food packaging bags A' more tightly together inside the transport box, allowing more pre-packaged food packaging bags A' to be packed into the transport box G and transported efficiently.

[0033] Furthermore, as described above, the sides of the pre-packaged food packaging bag are covered by flap pieces F, F (the outer surface of which is made of backing film 2) and a portion of the backing film 2 that is continuous with these flap pieces F, F. In other words, the sides of the pre-packaged food packaging bag A' are almost entirely covered by a portion of the backing film 2. By constructing the front film 1 from a transparent synthetic resin film and the backing film 2 from an opaque film (for example, paper, colored synthetic resin film, etc.), in the pre-packaged food packaging bag A', the food stored inside the food packaging bag A can be seen through the transparent front film, while the remaining surface is completely covered by the opaque backing film. This minimizes the deterioration of food due to light entering the storage section A1 of the food packaging bag A, thereby improving storage stability.

[0034] Next, we will explain how to take out and eat the food from the pre-packaged food packaging bag A'. As shown in Figures 6 and 7, by grasping the front film piece 41 that makes up the tab 4 of the pre-packaged food packaging bag A' with your fingers and pulling the front and back films 1 and 2 apart from each other, the first seal portion 3, the second seal portion 5 and the third seal portion 6 are peeled off, the front film 1 is removed, the storage portion A1 is opened, and the food S inside the storage portion A1 can be taken out and eaten.

[0035] During and after removing the outer film 1 from the pre-packaged food packaging bag A', the food is covered from below by the inner film 2, which is bent to conform to the shape of the food. Therefore, the food can be stably supported from below by hand through the inner film 2, allowing the outer film 1 to be removed and the storage compartment A1 opened without dropping the food, and the food S to be consumed stably.

[0036] In the food packaging bag A shown above, the second seal portion 5 is formed in a continuous, linear manner. However, as shown in Figure 8, the second seal portion may be formed intermittently. In the following description, components similar to those in food packaging bag A shown in Figure 1 are denoted by the same reference numerals and their descriptions are omitted.

[0037] Virtual lines L, L for forming the second seal portion 5' are set from each of the longitudinal ends of the first seal portion 3 toward the other end, and one or more (two in Figure 8) second seal portions 5', 5' are formed intermittently on these virtual lines L. The number of second seal portions 5' is not limited, but it is preferable to have multiple portions because it allows for integration of the front and back films 1, 2 and allows the flap pieces F, F to stand up stably and automatically when food S is placed in the storage portion A1 of the food packaging bag A.

[0038] Furthermore, fourth seal portions 7, 7 are formed along the edges 13(23), 14(24) of the front and back films 1, 2, connecting the other ends of the third seal portions 6, 6 and the other ends of the virtual lines L, L for forming the second seal portion 5', thereby integrating the front and back films 1, 2.

[0039] In the food packaging bag A shown in Figure 1, the second sealing portions 5, 5 are formed continuously, and the storage portion A1 is formed by these second sealing portions 5, 5 and the first sealing portion 3. By closing the opening A2 of the storage portion A1, the storage portion A1 of the food packaging bag A can be completely sealed.

[0040] On the other hand, in the food packaging bag A shown in Figure 8, the second sealing portions 5, 5 are formed intermittently, so that when the storage portion A1 of the food packaging bag A is closed by the third sealing portions 6, 6 and the fourth sealing portions 7, 7, the storage portion A1 is sealed.

[0041] The instructions for using and opening food packaging bag A shown in Figure 8 are the same as described above, so we will omit further explanation.

[0042] Furthermore, although the above explanation of food packaging bag A was given using the example of a case where the front film 1 and the back film 2 are formed to be the same shape and size, the front and back films 1 and 2 do not necessarily have to be the same shape and size, and may be different shapes and / or different sizes. When the front and back films 1 and 2 are formed to be different shapes and / or different sizes, the edges of the front and back films 1 and 2 refer to the edges of the films that are on the inside when viewed from a plane when the front and back films 1 and 2 are overlapped. [Explanation of Symbols]

[0043] 1. Front film 2 Backing film 3. First seal section 4 pieces 5. Second seal section 6. Third seal section 7. Fourth seal section A Food packaging bag A' Pre-packaged food packaging bags F Flap piece S Foods, Sandwiches

Claims

1. It has a front film and a back film superimposed on the front film, The front film and the back film are integrated at one end by a first sealing portion to form a tab, and are also integrated at a second sealing portion that extends from each end of the first sealing portion toward the other end and in a direction away from each other. A storage compartment is formed between the opposing surfaces of the front film and the back film, which are surrounded by the first and second sealing portions, and an opening for the storage compartment is formed at the other end. The flap pieces on both sides are formed by the front and back film portions that are outside the second sealing portion mentioned above. A food packaging bag characterized in that, when a food item having a triangular shape on its sides and a height dimension matching or slightly shorter than the length of the first seal portion between one end of the second seal portion is stored in the storage compartment with its bottom surface facing the back film and its inclined surface facing the front film, the front film is bent along the second seal portion so that the front film faces inward, and the two side flap pieces are displaced in a direction approaching the side of the food item, with the other end moving in a direction approaching the inclined surface of the food item, using the connection between the first seal portion and the second seal portion as a pivot point, so that the side of the food item is covered by the two side flap pieces and a part of the back film that is continuous with the two side flap pieces, and the exposed surfaces of the back film and two side flap pieces covering the side of the food item are formed as smooth surfaces.

2. The food packaging bag according to claim 1, characterized in that a third seal portion is formed along the edges of the front and back films from the longitudinal end of the first seal portion, the front and back films constituting the side flap pieces are integrated by the third seal portion, and the front and back films constituting the side flap pieces are configured to displace integrally.

3. A food packaging bag according to claim 1 or 2, characterized in that the second sealing portion is formed continuously.

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