packaging bags

Abstract

To provide a packaging bag that is suitable to be mounted on a palm, and allows a content to be directly taken and eaten, while giving the same merit as a standing pouch.SOLUTION: A packaging bag 100 applicable as a container for eating comprises: a bottom part 120 configured of a first leg part 121 and a second leg part 126 formed by sealing: circumference parts of respective folding pieces 106, 107 of a bottom film 105 in a twofold state sandwiched between a front side film 101 and a back side film 102 overlapped with each other; and the surface side film 101 and the back side film 102, respectively. The first leg part 121 and the second leg part 126 are configured to be deployable so that respective edge parts 123, 128 are oriented outward in a surface direction of a bottom surface part 125 formed of the folding pieces 106, 107.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a packaging bag that doubles as a food container suitable for packaging cut fruit and the like. [Background technology]

[0002] Packaging bags made of soft synthetic resin film for holding contents such as cut fruit are widely used. Many of these bags are opened by manually tearing the top seal from one seal to the other. The food contents of the opened bag are usually transferred to another container such as tableware for serving, but the bag itself can also be used as a simple dish.

[0003] Standing pouches that are self-supporting so that packaging bags can be used as simple tableware are widely known (see, for example, Patent Document 1). Standing pouches generally have a configuration in which a bottom film folded in half is sandwiched between two side films, and the pouches are sealed with a side seal and a bottom seal. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2019-001550 Summary of the Invention [Problem to be solved by the invention]

[0005] Patent Document 1 is based on the premise that the pouch container used as simple tableware is placed on a table or the like. However, when actually using a pouch container as simple tableware, it is considered that the pouch container is often held in the hand rather than placed on a table. More specifically, it is assumed that the opened pouch container is held in one hand and the contents are scooped out with a spoon or the like held in the other hand.

[0006] However, since the edge of the bottom seal of a standing pouch faces downward, when the standing pouch is placed on the palm of the hand, the edge touches the palm, causing discomfort. Furthermore, the opening edge formed when the pouch is opened narrows or closes, making it difficult to use the pouch container as simple eating tableware.

[0007] The present invention solves the above-mentioned problems and aims to provide a packaging bag that has the same advantages as a standing pouch, but is suitable for being placed on the palm of your hand and for eating the contents directly. [Means for solving the problem]

[0008] The present invention provides a packaging bag that also serves as a food container, the packaging bag having a bottom portion formed by first and second leg portions formed by sealing peripheral edges of the folded pieces of a bottom film that is folded in half and sandwiched between overlapping front and back side films, and the front and back side films, respectively, It is configured to be able to be placed on a person's palm, The first leg portion and the second leg portion are configured to be unfoldable so that their edge portions face outward in a plane direction of a bottom surface portion formed by the folded piece, When placing on a flat surface By unfolding the first leg portion and the second leg portion, one side of the bottom portion with respect to the width direction center becomes substantially flush and continuous with the first leg portion and the second leg portion. With respect to the mounting surface The ground surface and The other side is in a floating position relative to the placement surface. The above-mentioned problem is solved by being configured to be self-supporting. [Effects of the Invention]

[0009] According to the invention of claim 1, by unfolding the first and second legs when eating, the weight of the contents can cause the bottom of the packaging bag to deform to fit the palm of the hand, allowing the packaging bag to be held stably in the palm of the hand.

[0010] According to the configuration of claim 2, both sides of the bottom of the packaging bag are cut, and the edge portions of the first and second legs face outward in the plane direction of the bottom surface, so the edge portions of the first and second legs do not come into contact with the hand, resulting in an excellent feel when holding the packaging bag. Furthermore, because the bottom surface has a diamond shape in a plan view from above, the opening shape of the packaging bag can be easily changed, when the packaging bag is placed on the palm, to a shape that allows the contents to be consumed directly or a shape that prevents dust and the like from entering the inside. Furthermore, when the packaging bag is placed on a table or the like from the palm during consumption, the contact area of the packaging bag with the table surface is increased, so the packaging bag can stand stably and is less likely to tip over.

[0011] According to the configuration of claim 3, the point seal can be easily released by hand while preventing the point seal from being released unexpectedly.

[0012] According to the configuration of claim 4, before the point seal is released, the first leg portion and the second leg portion are configured to open and close in the width region between the point seal portions, thereby achieving the same effect as a standing pouch.

[0013] According to the configuration of claim 5, after the packaging bag is initially opened starting from a notch located in the upper part of the packaging bag, when the amount of contents decreases, the packaging bag can be opened starting from another notch, making it easier to scoop out the contents to the last drop. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is a front view showing the configuration of a packaging bag according to one embodiment of the present invention. [Figure 2] FIG. 2 is a schematic cross-sectional view taken along line AA in FIG. [Figure 3] 10 is a schematic diagram showing the state in which the point seal is released and the first leg portion and the second leg portion are deployed so that their edge portions face outward in the plane direction of the bottom portion. FIG. [Figure 4] FIG. 2 is a perspective view schematically illustrating the configuration of the bottom of the packaging bag shown in FIG. [Figure 5] This is a photograph showing a packaging bag with the point seal removed being placed on a person's palm. [Figure 6] 10A and 10B are schematic top views of a packaging bag for explaining changes in the opening shape of the packaging bag. [Figure 7] 10 is a photograph showing a state in which a packaging bag has been deformed so that the opening of the bag is opened widely. [Figure 8] FIG. 2 is a schematic diagram of the bottom of the packaging bag. [Figure 9] This is a photograph taken from the front side of a packaging bag placed on a placement surface. [Figure 10] This is a photograph taken from one side in the width direction of a packaging bag placed on a placement surface. DETAILED DESCRIPTION OF THE INVENTION

[0015] Hereinafter, an embodiment of the packaging bag of the present invention will be described with reference to the drawings.

[0016] 1 and 2, the packaging bag 100 of this embodiment has a body portion 110 that is rectangular in plan view from the front side, formed by heat-welding both left and right side edges of the overlapping front side film 101 and back side film 102 to form side seal portions 111, and a bottom portion 120 that is continuous with the lower end of the body portion 110. Both side edges of the bottom portion 120 are cut so that the width dimension of the contour shape decreases toward the lower end. The bottom portion 120 of this packaging bag 100 is formed in a trapezoidal shape that is symmetrical with respect to the center in the width direction.

[0017] The bottom portion 120 is composed of a first leg portion 121 and a second leg portion 126 formed by heat welding each folded piece 106, 107 of the bottom film 105, which is folded in half and sandwiched between the front side film 101 and the back side film 102, to the bottom end portions of the front side film 101 and the back side film 102, thereby forming a first bottom seal portion 122 and a second bottom seal portion 127, and a bottom surface portion 125 formed by each folded piece 106, 107 of the bottom film 105.

[0018] At each of the both side edges of the bottom 120, i.e., the trapezoidal oblique sides, point seal portions 130, 130 that releasably join the first leg portion 121 and the second leg portion 126 are formed at the portions where the first bottom seal portion 122 and the second bottom seal portion 127 are formed, and as shown in Figure 3, the first leg portion 121 and the second leg portion 126 are configured to be unfoldable so that their respective edge portions 123, 128 face outward in the surface direction of the bottom surface portion 125.

[0019] The peel strength of the point seal portion 130 is preferably 2 to 55 N. This makes it possible to easily remove the point seal by hand while preventing the point seal from being accidentally removed. The peel strength of the point seal portion 130 is measured in accordance with JIS Z0238:1998, by pulling a test piece 10 mm wide with a tensile tester at a rate of 300 mm / min until it breaks.

[0020] The point seal portions 130, 130 are formed at the same height position from the bottom edge of the packaging bag 100 and at positions symmetrical with respect to the center in the width direction. Furthermore, the separation distance W in the width direction between the point seal portions 130, 130 is preferably 20 mm or more, and more preferably 60 to 200 mm. By forming such a point seal portion 130, before the point seal is released, the first leg portion 121 and the second leg portion 126 are configured to open and close in the width region between the point seal portions 130, 130 as shown in Fig. 4, and the same effect as a standing pouch can be obtained. For example, it can be distributed in a freestanding state on the production line, allowing for stable production with high productivity, and also has the effect of enabling effective display and facilitating storage. On the other hand, if the widthwise separation distance W between the point seal portions 130, 130 is too small, it becomes difficult to insert fingers between the first leg portion 121 and the second leg portion 126, making it difficult to release the point seal and to ensure independence. The process for forming the point seal is the same as the process for forming punch holes in the base material of a normal stand-up pouch. In this packaging bag, punch holes are formed in the bottoms of two adjacent bags or for each bag as the base material film flows through the bag-making machine, and then heat-sealed to form the bottom seal. The shape of the punch holes can be circular, oblong, triangular, rectangular, or diamond.

[0021] When the point seal is removed and first leg portion 121 and second leg portion 126 are unfolded, the weight of the contents causes bottom portion 125 to deform (bulge outward) into a smoothly curved shape that fits in a person's palm. Furthermore, because edge portions 123, 128 of first leg portion 121 and second leg portion 126 do not come into contact with a person's palm, packaging bag 100 can be used as simple tableware as is. Figure 5 shows packaging bag 100 with the point seal removed.

[0022] The bottom surface 125 of this packaging bag 100 has a diamond shape in a plan view from above, as shown in Fig. 6. Therefore, by pressing one side in the width direction of the packaging bag 100 inward with a finger and applying a force (indicated by the filled-in arrows in Fig. 6) to the bottom 120 of the packaging bag 100 from both the left and right sides, the short diagonal D of the diamond-shaped bottom surface 125 is S The packaging bag 100 can be deformed by bending it at 100's angle so that the widthwise central portion of the opening edge 115 opens widely. The deformed state of the packaging bag 100 is shown in FIG. In addition, when the portion of the packaging bag 100 that bulges outward due to the contents is pressed from the front and back sides, the long diagonal line D of the diamond-shaped bottom portion 125 L The packaging bag 100 can be deformed by bending it with the force of the arrow so that the opening closes. In this way, because the bottom surface portion 125 has a diamond shape, when the packaging bag 100 is placed on the palm of the hand, the opening shape of the packaging bag 100 can be easily changed to a shape that makes it easy to eat the contents directly or to a shape that prevents dust and the like from entering the inside.

[0023] In addition, in this packaging bag 100, by unfolding the first leg portion 121 and the second leg portion 126, as shown in FIG. 8, the short diagonal D S The triangular outer surface 108 having a side of 12 is formed as a contact surface 135 (one of the contact surfaces is shown with diagonal lines in FIG. 8 for convenience) that is substantially flush with and continuous with the inner surface 124 of the first leg portion 121 and the inner surface 129 of the second leg portion 126. As a result, when the packaging bag 100 is placed on a table or the like from the palm of one's hand during eating, the contact area of the packaging bag 100 with the placement surface becomes large, so that the packaging bag 100 can stand stably and is less likely to tip over. The state in which the packaging bag 100 is placed on the placement surface is shown in FIGS. 9 and 10. Here, the word "substantially" is used to include not only the case where there is no gap at all between the contact surface 135 of the packaging bag 100 and the flat placing surface, but also the case where a gap is formed.

[0024] A first notch 112, which serves as a trigger for initial opening of the packaging bag 100, is formed in the upper portion of the side seal portion 111 of the packaging bag 100, and a second notch 113, which serves as a trigger for subsequent opening, is formed in the approximate center portion. Each of the first notch 112 and the second notch 113 is formed by cutting out a portion of the outer edge of the packaging bag 100. In this embodiment, the first notch 112 and the second notch 113 are formed facing each other in each of the left and right side seal portions 111, but they may also be formed in only one of the side seal portions 111. In this case, the first notch 112 and the second notch 113 may be formed in the side seal portions 111 on the same side or on different sides. By forming notches for opening in multiple locations in this manner, after initially opening the packaging bag 100 starting from the first notch 112, when the amount of contents decreases, the packaging bag 100 can be opened starting from the second notch 113, which has the effect of making it easier to remove the contents.

[0025] Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the present invention. For example, the front film, back film, and bottom film may be formed as separate films, or may be formed as one continuous film. The specific form of the film forming the packaging bag may be any, and specific examples include synthetic resin films such as polyester, polypropylene, polyamide, polyethylene, polybutylene terephthalate, and ethylene-vinyl alcohol copolymer, as well as films formed by laminating known synthetic resin films, such as coating films or vapor-deposited films that have gas barrier properties or moisture barrier properties, onto these synthetic resin films, or by laminating paper or aluminum foil onto a synthetic resin film.

[0026] Furthermore, the contour shape of the bottom does not have to be trapezoidal, and may be cut so that both side edges are curved, as long as the edge portions of the first leg and the second leg are formed so that they do not come into contact with a person's hand when the first leg and the second leg are unfolded. Furthermore, the shape of the seal and other configurations of the point seal portion are not particularly limited as long as it is formed to releasably join the first leg portion and the second leg portion. Furthermore, the specific form of the notch may be any, such as a V-notch having a V-shaped cutout, an I-notch having a linear cutout, or a U-notch having a U-shaped cutout. [Industrial Applicability]

[0027] The packaging bag according to the present invention can be used not only for packaging bags for storing foods such as cut fruit, but also for various packaging bags for storing retort foods, chilled foods, beverages, or medicines. It can also be used for microwave-safe pouches that have a known automatic steam release mechanism and can be used for cooking in a microwave oven. [Explanation of symbols]

[0028] 100... packaging bag 101 Surface film 102 Back side film 105 Bottom film 106 ··· Folded piece 107 ··· Folded piece 108 ··· External surface 110 Torso 111 Side seal part 112 1st notch 113 2nd notch 115 Opening edge 120...bottom 121 ... 1st leg 122 First bottom seal part 123 Edge 124 ··· Interior 125 ... bottom part 126 ... 2nd leg 127 Second bottom seal part 128 ··· Edge part 129 ··· Interior 130 Point seal part 135... ground plane

Claims

1. A packaging bag also serving as a food container, having a bottom portion formed by first and second leg portions formed by sealing peripheral edges of each folded piece of a bottom film folded in half and sandwiched between overlapping front and back side films, and the front and back side films, respectively, It is configured to be able to be placed on a person's palm, The first leg portion and the second leg portion are configured to be unfoldable so that their edge portions face outward in a plane direction of a bottom surface portion formed by the folded piece, A packaging bag characterized in that, when the first leg and the second leg are unfolded and placed on a flat support surface, one side of the bottom surface that is parallel to the widthwise center of the bottom surface forms a continuous contact surface that is substantially flush with the first leg and the second leg, and the other side is floating above the support surface, so that the bag can stand on its own.

2. The bottom portion has both side edges cut so that the width of the contour shape decreases toward the bottom end, The bottom surface portion has a diamond shape in a plan view from above, The packaging bag according to claim 1, characterized in that, when the first leg portion and the second leg portion are unfolded, a triangular surface having a short diagonal line of the bottom portion as one side forms the contact surface.

3. a point seal portion that releasably joins the first leg portion and the second leg portion is formed on each side edge of the bottom portion; The packaging bag according to claim 1 or 2, wherein the peel strength of the point seal portion is 2 to 55 N.

4. 4. The packaging bag according to claim 3, wherein the distance between the point seal portions in the width direction is 20 mm or more.

5. A packaging bag as described in any one of claims 1 to 4, characterized in that the side seal portion formed by sealing both side edges of the front side film and the back side film has notches formed in multiple locations to serve as triggers for opening the packaging bag.

Images