Shrink-wrapped

Abstract

To prevent the deterioration of aesthetics and texture with a film welding line of a first shrink film formed on an outer surface, in a shrink package made by shrink-packaging a storage container.SOLUTION: A shrink package 1 is equipped with a storage container group 10 made by vertically stacking storage containers 11 having bottom walls 11a and side walls 11b and opening upward, a first shrink film 20 that wraps the storage container group 10 and has a film welding line 24 of the film, and a sheet member 30 that is laminated so as to conceal the film welding line 24 of the first shrink film 20. Since the film welding line 24 of the first shrink film 20 does not appear on an outer surface, aesthetics are not deteriorated, and it is prevented from feeling uncomfortable or cutting the skin of your fingers and getting injured when touching the outer surface.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a package formed by wrapping a storage container with a first shrink film. [Background technology]

[0002] A type of food storage container commonly known as a side dish case is well known. Such side dish cases are widely used not only for commercial use by food manufacturers but also for home use.

[0003] The side dish case is formed by pressing a sheet of paper, resin film, aluminum foil, or the like, and has a bottom wall and a peripheral wall that extends up from the bottom wall, opening upward, with numerous folds formed in the peripheral wall due to the manufacturing process. Such household side dish cases are sold on the market in a packaged state, stacked one on top of the other, to prevent dust and bacteria from adhering to the case during distribution, including truck transport, and when sold at retail stores. For example, Patent Document 1 discloses packaging stacked side dish cases in a plastic packaging cup with a lid.

[0004] In recent years, in consideration of the burden on the environment, attempts have been made to reduce the use of plastic materials as much as possible, and as part of this, it has been proposed to wrap stacked side dish cases in a first shrink film using shrink packaging technology, as in Patent Document 2. In this way, by changing the packaging material from a plastic cup to the first shrink film, it is possible to reduce the amount of plastic material used. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-136282 [Patent Document 2] Japanese Patent Application Laid-Open No. 2005-335764 Summary of the Invention [Problem to be solved by the invention]

[0006] However, when the first shrink film is used, a film weld line inevitably appears somewhere on the outer surface when the raw film is welded into a cylindrical shape, as described in Patent Document 2. Such a film weld line is unsightly, painful to the touch with fingers, and may cause injury such as cuts in the skin.

[0007] Therefore, the problem to be solved by the present invention is to prevent the deterioration of aesthetics and feel that occurs when a film welding line of the first shrink film is formed on the outer surface of a shrink-packaged body made by shrink-packaging a storage container such as a side dish case. [Means for solving the problem]

[0008] In order to solve the above-mentioned problems, the shrink packaging of the present invention is configured to include a storage container that has a bottom and sides rising from the bottom and opens upward, a first shrink film that encases the storage container and has a film welding line, and a sheet member that is laminated so as to conceal the film welding line of the first shrink film. The shrink-wrapped body of the present invention is a container group consisting of a plurality of containers stacked one on top of the other, each of which has a bottom and a side rising from the bottom and opens upward, and a container group including the container group. The structure includes a first shrink film that envelops the container and has a film welding line, and a sheet member that is laminated so as to conceal the film welding line of the first shrink film.

[0009] When the shrink-wrapped product according to the present invention is constructed as described above, the film welding lines of the first shrink film are concealed by the sheet member and do not appear on the outer surface, so the aesthetic appearance is not marred. Furthermore, even if the outer surface of the shrink-wrapped product is touched, it is prevented from feeling unpleasant to the touch or from cutting the skin of the fingers, which can cause injury.

[0010] In the shrink packaging of the invention, it is preferable that the film welding line of the first shrink film is formed from the opening of the storage container to the part covering the side, and that the sheet member is laminated so as to conceal the film welding line from the part of the first shrink film covering the opening of the storage container to the part covering the side.

[0011] In the shrink-wrapped package of the present invention, the sheet member is preferably configured as a label on which package markings, barcodes, etc. are printed, and the storage container is preferably configured as a side dish case that can store food and is composed of a bottom and pleated sides that extend up from the bottom.

[0012] The shrink package according to the present invention may further comprise a second shrink film that partially covers the first shrink film and conceals the film welding line. Here, it is preferable that the second shrink film has a cylindrical shape and is placed over the first shrink film to cover the entire periphery of the side of the storage container or group of storage containers. It is preferable that the second shrink film has a configuration in which a package indication, a bar code, or the like is printed, so that the second shrink film functions as a label. [Effects of the Invention]

[0013] The shrink packaging body is constructed as described above, so it is possible to prevent deterioration in aesthetics and feel that would otherwise occur if the film welding line of the first shrink film were formed on the outer surface. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is a perspective view of a shrink-wrapped body according to a first embodiment; [Figure 2] Perspective view of the storage container group [Figure 3] 1 is a side view of a shrink-wrapped body before the sheet members are laminated; [Figure 4] FIG. 1 is a perspective view of a shrink-wrapped body before sheet members are laminated; [Figure 5] 10 is a perspective view of a shrink-wrapped body according to a second embodiment; [Figure 6] 10 is a perspective view of a shrink-wrapped body according to a third embodiment; [Figure 7] 10 is a perspective view of a shrink-wrapped body according to a fourth embodiment; [Figure 8] 10 is a perspective view of a shrink-wrapped body according to a fifth embodiment; [Figure 9] 13 is a perspective view of a shrink-wrapped body according to a sixth embodiment. [Figure 10] 13 is a perspective view of a shrink-wrapped body according to a seventh embodiment; [Figure 11] 13 is a perspective view of a shrink-wrapped body according to an eighth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0015] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The shrink-wrapped package 1 of the first embodiment shown in FIGS. 1 to 4 is a package containing a group of storage containers. The storage container group is made up of a first shrink film 20 that encloses the storage container group 10 by shrink packaging, and a sheet member 30 that is laminated at a specific position on the outer surface of the first shrink film. The shrink-wrapped body 1 is distributed in the market in this state, and at the point of purchase, the first shrink film 20 is broken and the overlapping storage containers 11 are individually taken out from the storage container group 10 and used for storage.

[0016] 2, the storage container group 10 is made up of multiple storage containers 11 stacked one on top of the other. Each storage container 11 has a bottom wall 11a and a side wall 11b rising from the bottom wall 11a, and has an opening 11c at the top. When storage containers 11 are stacked, the bottom walls 11a and side walls 11b are in contact with each other. The type of storage container 11 is not particularly limited, but an example is a side dish case made of a sheet of paper or the like, which is widely used for storing food such as side dishes for lunch boxes.

[0017] The storage container 11 shown in FIG. 2 is such a side dish case, and is manufactured by press-molding a flat sheet (blank) into a desired shape using a press-molding device. The side dish case serving as the storage container 11 has a bottom wall 11a that is circular in plan view and a side wall 11b that extends up from the bottom wall 11a, and vertical striped pleats 11d resulting from the press molding method are formed over almost the entire area of ​​the side wall 11b. Here, the sheet body for manufacturing the side dish case as the storage container 11 is not particularly limited, but examples thereof include paper, resin film, aluminum foil, and composite substrates made by bonding these together. When manufacturing the side dish cases as storage containers 11 by press molding, multiple blanks are stacked and fed into a press molding device, and then pressed to produce multiple stacked cases at the same time, which can then be used as a storage container group 10.

[0018] In Figure 2, the storage container 11 is shown with the bottom wall 11a being circular in plan view, but the shape is not limited to this, and the bottom wall 11a may be elliptical in plan view, or may be polygonal such as triangular or rectangular. The number of storage containers 11 in the storage container group 10 and the dimensions of each storage container 11 are not particularly limited.

[0019] As shown in Figures 1, 3 and 4, the first shrink film 20 that wraps around the storage container group 10 consists of a bottom covering portion 21 that adheres to the outer surface of the bottom wall 11a of the storage container 11 that is the lowest of the storage container group 10, a side covering portion 22 that adheres to the outer edges of the side walls 11b of the storage containers 11 that are arranged in parallel above and below, and an opening covering portion 23 that covers the opening 11c of the topmost storage container 11. The first shrink film 20 is wrapped around the storage container group 10 using common shrink packaging techniques, and has micropores (not shown) formed over almost the entire surface to allow air inside the package to escape when it shrinks. The area and location of the micropores are not limited to this, and they can be formed locally as long as they allow air to escape smoothly to the outside. The number of micropores is also not an issue. 3 and 4, film welding lines 24 resulting from the manufacturing process are formed in the opening covering portion 23 and the side covering portion 22 of the first shrink film 20. The film welding lines 24 cross the opening covering portion 23, and both ends thereof terminate halfway up and down in the side covering portion 22.

[0020] The type of the first shrink film is not particularly limited, but those generally used for shrink packaging include polyethylene-based resin, polystyrene-based resin, and polypropylene-based resin. An example is a resin film. Biaxially stretched shrink film is used. The thickness of the first shrink film is preferably 7.5 μm to 30 μm, and more preferably 15 μm to 20 μm. If the thickness of the first shrink film is less than 7.5 μm, the strength will be insufficient and the film will be prone to tearing during transportation of the shrink-packaged product 1. If the thickness is more than 30 μm, the amount of plastic material used will be excessive, which will increase the burden on the environment and the rigidity of the film will increase, preventing it from adhering to the storage container 11.

[0021] As shown in FIGS. 1 and 4, the sheet member 30 is laminated on the outer surface of the entire first shrink film 20 from the opening covering portion 23 to the side covering portion 22. The sheet member 30 consists of a circular opening laminated portion 31 laminated on the opening covering portion 23, a pair of square side laminated portions 32 laminated on the side covering portion 22, and a strip-shaped connecting portion 33 connecting the opening laminated portion 31 and each side laminated portion 32, and the film welding line 24 of the first shrink film is concealed by this sheet member 30. By laminating the sheet member 30, the opening covering portion 23 of the first shrink film 20, which is prone to tearing, can be reinforced, thereby preventing tearing at that portion and also blocking the micropores at that portion, thereby preventing dust and other particles from entering the interior of the storage container 11. Furthermore, the film welding line 24 of the first shrink film 20 can be concealed by laminating the sheet member 30, so that the film welding line 24 is not visible on the outer surface of the shrink packaging body 1, which gives a good appearance, and the feel to the touch is also improved because the film welding line 24 does not come into direct contact with the fingers.

[0022] The manner in which the sheet member 30 is laminated to the first shrink film 20 is not particularly limited, and examples thereof include lamination and welding. The type of adhesive or pressure-sensitive adhesive used when laminating the sheet member 30 to the first shrink film is also not particularly limited, but examples thereof include solvent-based acrylic adhesives, which have higher adhesiveness than water-soluble adhesives. 1, the sheet member 30 is laminated on the outer surface from the opening covering portion 23 to the side covering portion 22, but it may also be laminated on the inner surface thereof. When laminated on the inner surface, there is no step between the first shrink film 20 and the sheet member 30 on the outer surface of the shrink package 1, which makes it pleasant to the touch. The lamination step of the sheet member 30 may be performed either before or after the shrink-packaging step of the storage container group 10 with the first shrink film 20, but lamination after the shrink-packaging step allows the air-exhausting effect of the micropores provided in the film to be fully exerted. When the sheet member 30 is laminated on the inner surface from the opening covering portion 23 to the side covering portion 22, it is laminated before the shrink-packaging step.

[0023] The material of such sheet member 30 is not limited, but examples thereof include paper, resin film, and metal foil. Examples of resin films as the sheet member 30 include biodegradable resin films, polyethylene-based resin films, polystyrene-based resin films, polypropylene-based resin films, and synthetic paper (Yupo (registered trademark)) made primarily from polypropylene resin. Moreover, examples of metal foils that can be used as the sheet member 30 include aluminum foil and copper foil. Furthermore, the sheet member 30 may be made of a combination of these materials, such as by laminating a plurality of these materials.

[0024] The sheet member 30 may be transparent or opaque. If it is transparent, it becomes easy to see the inside of the storage container 11 when purchasing the shrink-wrapped body 1, and if it is opaque, it can easily be used as a label on which package indications, barcodes, etc. are printed. In FIG. 1, the sheet member 30 also serves as a label, and a package indication 35 is printed on it. The sheet member 30 may be partially transparent and the remaining portion may be opaque, so that the inside of the storage container 11 can be seen through the transparent portion, and package indications or the like can be printed on the opaque portion.

[0025] The thickness of the sheet member 30 varies depending on the material, but it should be thick enough to provide enough strength to prevent tearing of the first shrink film 20, and should be in the range of 25 μm to 110 μm, more preferably in the range of 40 μm to 100 μm. If the thickness of the sheet member 30 is less than 25 μm, the effect of reinforcing the first shrink film 20 may be insufficient, causing tears in the opening covering portion 23, or the effect of concealing the film welding line 24 may be insufficient, causing the shape of the film welding line 24 to stand out on the sheet member 30, resulting in a poor appearance and feel. Also, if the thickness of the sheet member 30 exceeds 110 μm, excess material will be used, resulting in higher costs. As the material for the sheet member 30, CPP, synthetic paper, C-PET, etc. are particularly preferable because they have the characteristics of being hard to stretch and the film is hard to tear. Furthermore, when the ratio D / d of the thickness D (μm) of the sheet member 30 to the thickness d (μm) of the first shrink film 20 satisfies 3 to 14, tearing of the first shrink film 20 can be effectively prevented. If the ratio D / d is less than 3, the sheet member 30 may not be thick enough to prevent tearing of the first shrink film 20. If the ratio D / d exceeds 14, the sheet member 30 becomes too thick relative to the first shrink film 20, reducing its flexibility and reducing its ability to conform to the first shrink film when laminated, which may prevent proper lamination.

[0026] In Figures 1 and 4, the shape of the sheet member 30 is a composite shape consisting of a circular opening laminated portion 31, a square side laminated portion 32, and a strip-shaped connecting portion 33, but is not particularly limited thereto, and is not particularly limited as long as it can be laminated at least on the outer surface of the opening covering portion 23 of the first shrink film 20 and can conceal the film welding line 24 at that location. Other examples of the shape of the sheet member 30 include a circle, an oval, and a polygon such as a triangle or a rectangle. The dimensions of the sheet member 30 are not particularly limited, but it is preferable that the size be 70% to 90% of the maximum opening area of ​​the opening 11c of the storage container 11. If the dimensions of the sheet member 30 are less than 70% of the maximum opening area of ​​the opening 11c of the storage container 11, the film welding line 24 may not be sufficiently concealed or the opening covering portion 23 may not be sufficiently reinforced. Furthermore, if the sheet member 30 is opaque and its dimensions exceed 90% of the maximum opening area of ​​the opening 11c of the storage container 11, there will be almost no gap between the outer edge of the opening 11c and the outer edge of the sheet member 30, making it difficult to see the inside of the storage container 11 when the shrink-wrapped body 1 is packaged. When the numerical range is 90% or less, if a design is printed on the inner bottom and side surfaces of storage container 11, the design can be seen through the gap between the outer edge of opening 11c and the outer edge of sheet member 30, allowing the design to be displayed in its packaged state. When portioned frozen or refrigerated food is stored inside the storage container and then shrink-wrapped, the food can be identified through the gap.

[0027] In this embodiment, it is preferable that the shape of the bottom wall 11a of the storage container 11, which is circular in plan view, and the shape of the portion covering the bottom wall 11a of the storage container 11 and the opening 11c of the sheet member 30, such as the opening stacking portion 31 of the sheet member 30, are approximately the same. In this way, the shape of the opening 11c of the container 11 and the shape of the opening laminated portion 31 of the sheet member 30 are substantially similar to each other, so that the width of the annular gap formed between the outer edge of the opening 11c and the outer edge of the opening laminated portion 31 is substantially constant. Therefore, when the opening covering portion 23 is pressed with a finger due to mischief or the like, the first shrink film 20 in the annular gap is not pressed. The force applied by the fingers is distributed approximately evenly at any point in the circumferential direction, so that the force of the fingers is not concentrated on one part of the first shrink film 20, further preventing the film from tearing. Furthermore, if the shape of the opening 11c of the storage container 11 and the shape of the opening laminated portion 31 of the sheet member 30 are approximately similar, it becomes easy to conceal the film welding line 24 on the opening covering portion 23 of the first shrink film 20.

[0028] FIG. 5 shows a shrink-wrapped product 2 according to a second embodiment. In this embodiment, the sheet member 30 consists of only a circular opening laminated portion 31 laminated to the opening covering portion 23 of the first shrink film 20 . Even in this case, the opening covering portion 23, which is the most prone to tearing of the entire first shrink film 20, is reinforced by the sheet member 30, thereby preventing tearing.Furthermore, the portion of the film welding line 24 on the opening covering portion 23, which is the most noticeable and most likely to be touched by fingers, is concealed, thereby achieving a corresponding improvement in aesthetics and feel. Since the sheet member 30 is made up of only the opening laminated portion 31, the lamination work onto the first shrink film 20 is easy, and the workload and costs related to materials can be reduced.

[0029] FIG. 6 shows a shrink-wrapped package 3 according to a third embodiment. In this embodiment, the sheet member 30 consists of a circular opening lamination portion 31 laminated to the opening covering portion 23 of the first shrink film 20, and a square side lamination portion 32 laminated separately to the side covering portion 22, and does not have a connecting portion 33. Since the opening laminated portion 31 and the side laminated portion 32 of the sheet member 30 are separate, they can be laminated individually onto the first shrink film, facilitating the lamination operation. The sharpest end of the film welding line 24 on the side covering portion 22 is concealed by the side laminated portion 32, which effectively improves the aesthetic appearance and feel.

[0030] FIG. 7 shows a shrink-wrapped package 4 according to a fourth embodiment. In this embodiment, the circular bottom lamination portion 34 of the sheet member 30 is laminated to the bottom covering portion 21 of the first shrink film 20. Although not shown, the sheet member 30 is also laminated to the opening covering portion 23 of the first shrink film 20, as in the second embodiment. This reinforces the bottom covering portion 21, which is prone to wear during transportation, and prevents the first shrink film 20 from tearing from the bottom. In addition, in this embodiment, the film welding line 24 crosses the bottom covering portion 21 of the first shrink film 20 and both ends terminate halfway through the side covering portion, but since the film welding line 24 of the bottom covering portion 21, which is part of it, is concealed by the bottom laminated portion 34, the effect of improving the appearance and feel is appropriately achieved.

[0031] FIG. 8 shows a shrink-wrapped package 5 according to a fifth embodiment. In this embodiment, the storage container 11 has a bottom wall 11a that is rectangular with rounded corners, and the side walls 11b that extend up from the bottom wall 11a have folds 11d formed only at the locations that correspond to the corners of the bottom wall 11a. The sheet member 30 is laminated only on the opening covering portion 23 of the first shrink film 20, and its shape is a rounded rectangle that is substantially the same as the bottom wall 11a of the storage container 11.

[0032] FIG. 9 shows a shrink-wrapped package 6 according to a sixth embodiment. In this example, a window 25 is automatically formed in the first shrink film 20 by peeling off the sheet member 30 consisting only of the circular opening laminated portion 31 from the first shrink film 20. Therefore, the container 11 can be used by inserting a finger into the window 25 and tearing the film. In this case, the packaging can be easily opened. The manner in which the window 25 is formed is not particularly limited, but examples include making a slit in advance at the location where the sheet member is laminated in the first shrink film 20, or adjusting the location where the sheet member is laminated so that the micropores are arranged in a perforated pattern so that they break when the sheet member 30 is peeled off.

[0033] FIG. 10 shows a shrink-wrapped package 7 according to a seventh embodiment, and FIG. 11 shows a shrink-wrapped package 8 according to an eighth embodiment. In shrink-wrapped body 7, storage container 11 has bottom wall 11a that is circular in plan view, and folds 11d are formed over almost the entire area of ​​side walls 11b that extend up from bottom wall 11a. In shrink-wrapped body 8, storage container 11 has bottom wall 11a that is rectangular in plan view with rounded corners, and folds 11d are formed over side walls 11b that extend up from bottom wall 11a only at locations that correspond to the corners of bottom wall 11a. In these examples, the second shrink film 40 having a cylindrical shape is covered over the entire periphery of the side covering portion 22 of the first shrink film 20 . The second shrink film 40 is shrunk so as to adhere closely to the outer surface of the first shrink film 20 using a common shrink packaging technique. The second shrink film 40 has openings at the top and bottom, so there is no need to provide micropores to allow air to escape to the outside. Therefore, unlike the first shrink film 20, the second shrink film 40 does not have micropores.

[0034] The second shrink film 40 covers and protects the side covering portions 22 of the first shrink film 20, thereby preventing the first shrink film 20 from tearing. The second shrink film 40 closes the micropores formed on the side covering portion 22 of the first shrink film 20, thereby preventing dust and other particles from entering the container 11. If the micropores of the first shrink film 20 are provided locally only on the side covering portion 22, almost all of the micropores can be closed by the second shrink film 40, ensuring complete prevention of dust and other particles from entering. Furthermore, the second shrink film 40 conceals the film welding line 24 that appears on the side covering portion 22 of the first shrink film 20. This prevents the film welding line 24 from coming into direct contact with fingers, improving the feel to the touch.

[0035] The second shrink film 40 may be transparent or opaque. If it is transparent, it makes it easy to see the inside of the storage container 11 when purchasing the shrink-wrapped body 7, 8, and if it is opaque, it can function as a label on which package indications, barcodes, etc. are printed. 10 and 11, the second shrink film 40 functions as a label and is printed with a package marking 41. In this case, the package marking 41 makes it difficult to see the film welding line 24, which improves the appearance.

[0036] The type of second shrink film is not particularly limited, but examples of films commonly used in shrink packaging include polyethylene terephthalate resin, polyolefin resin, polyvinyl chloride resin, polyethylene resin, polystyrene resin, and polypropylene resin. Uniaxially stretched shrink film is used, and so-called semi-uniaxially stretched shrink film, which also shrinks slightly in biaxial directions, can also be used. By using a material for the first shrink film that is stronger than the material for the second shrink film, damage to the shrink packages 7 and 8, film tearing, etc., can be suppressed. One such example is when the first shrink film is made of a polyethylene resin and the second shrink film is made of a polyethylene terephthalate resin.

[0037] The thickness of the second shrink film is preferably 7.5 μm to 60 μm, and more preferably 15 μm to 40 μm. By making the second shrink film thicker than the first shrink film, damage and tearing of the shrink-wrapped products 7 and 8 can be prevented. As the thickness increases, the rigidity of the film increases and adhesion decreases, but since the shrink-wrapped products 7 and 8 are already entirely covered by the first shrink film, adhesion is not as important for the second shrink film.

[0038] The embodiments disclosed herein are illustrative in all respects and are not restrictive. The scope of the present invention is defined by the claims, and includes all modifications and variations within the scope of the claims and their equivalents.

[0039] For example, in the embodiment, the objects to be packaged in the shrink package 1 are configured as a storage container group 10 consisting of a plurality of storage containers 11 stacked one on top of the other, but it may also be configured as a single storage container 11. The shape of the storage container 11 is not limited to that of the embodiment, as long as it has a bottom and sides and is open upward. For example, it may have a bowl-like shape in which the bottom wall 11a and the side wall 11b are not clearly defined, as in the embodiment. In the embodiment, the shrink packaging body 1 has only the storage container group 10, the first shrink film 20, and the sheet member 30 as its constituent elements, but in addition to these, the constituent elements may also include stored items such as food stored in small portions in the storage container 11.

[0040] In the embodiment, the film welding line 24 is formed from the opening covering portion 23 to the side covering portion 22 of the first shrink film 20, and the sheet member 30 is laminated in a position that covers it, but the position where the film welding line 24 is formed is not limited to the embodiment, and the laminated position of the sheet member 30 is also not limited to the embodiment as long as it can conceal at least a portion of the film welding line 24. In other words, in the present invention, it is not necessary for the sheet member 30 to conceal the entire film welding line 24, as long as it covers at least a portion of the film welding line 24. For example, even if the sharpest point of the film welding line 24 is concealed by the sheet member 30 and the other portions of the film welding line 24 are exposed, deterioration in appearance and feel can be significantly suppressed. For example, the film welding line 24 may be formed from the bottom covering portion 21 to the side covering portion 22 of the first shrink film 20, and the sheet member 30 may consist of a bottom laminated portion 34, a side laminated portion 32, and a connecting portion 33 connecting the bottom laminated portion 34 and the side laminated portion 32, thereby concealing the film welding line 24 formed from the bottom covering portion 21 to the side covering portion 22.

[0041] In the embodiment, the second shrink film 40 has a cylindrical shape, but is not limited to this, and may have any shape as long as it covers at least a portion of the first shrink film 20 and is in close contact with it. In addition, in the embodiment, the cylindrical second shrink film 40 covers only the side covering portion 22 of the first shrink film 20, but by increasing the axial length of the tube, it may also cover the outer edges of the bottom covering portion 21 and the opening covering portion 23 when shrunk. The second shrink film 40 and the sheet member 30 may overlap partially or entirely. When the two are overlapped, placing the sheet member 30 on the inside and the second shrink film 40 on the outside allows the second shrink film 40 to protect the sheet member 30 from damage, etc. In this case, the first shrink film 20 is attached to the sheet member 30 while it is still hot and soft, before the shrinking process of the second shrink film 40 is carried out. This makes it possible to press down on the sheet member 30 and deform it so that the sharpness of the film welding line 24 is reduced and the feel is improved, which is also preferable in that sense. In the embodiment, the package marking 41 is provided on the second shrink film 40, but instead, it is also possible to sandwich and fix a separate label or the like between the first shrink film 20 and the second shrink film 40. [Explanation of symbols]

[0042] Shrink-wrapped body of each embodiment 1 to 8 10 Storage Containers 11 Storage container 11a Bottom wall 11b Side wall 11c aperture 11d Pleats 20. First shrink film 21 Bottom covering part 22 Side covering part 23 Opening cover 24 Film welding line 25 Windows 30 Sheet material 31 Opening laminated section 32 side laminated section 33 Connecting part 34 Bottom laminated part 35 Package Display 40 Second shrink film 41 Package Display

Claims

1. a storage container having a bottom and sides rising from the bottom and opening upward; a first shrink film that encloses the container and has a film welding line; a sheet member laminated on the first shrink film to conceal the film welding line of the first shrink film and to reinforce the first shrink film by preventing it from being torn; a film welding line of the first shrink film formed from the opening of the storage container to a portion covering the side of the storage container; the sheet member is laminated so as to conceal the film welding line from the portion of the first shrink film covering the opening of the container to the portion covering the side portion, the film welding line formed on the opening covering portion of the first shrink film that covers the opening of the storage container is located on the same plane as an upper end of the opening of the storage container; A shrink-wrapped body, wherein the opening laminated portion of the sheet member laminated to the opening covering portion does not protrude from the opening covering portion.

2. a storage container group including a plurality of storage containers stacked one on top of the other, each of which has a bottom and a side rising from the bottom and is open upward; a first shrink film that encloses the container group and has a film welding line; a sheet member laminated so as to conceal the film welding line of the first shrink film; a film welding line of the first shrink film formed from the opening of the storage container to a portion covering the side of the storage container; the sheet member is laminated so as to conceal the film welding line from the portion of the first shrink film covering the opening of the container to the portion covering the side portion, the film welding line formed on the opening covering portion of the first shrink film that covers the opening of the storage container is located on the same plane as an upper end of the opening of the storage container; A shrink-wrapped body, wherein the opening laminated portion of the sheet member laminated to the opening covering portion does not protrude from the opening covering portion.

3. 3. The shrink-wrapped product according to claim 1, wherein the sheet member is a label on which a package indication or a bar code is printed.

4. 4. The shrink-wrapped product according to claim 1, wherein the storage container is a side dish case capable of storing food, the side dish case having a bottom and pleated sides that extend upward from the bottom.

5. The shrink package according to claim 1 , further comprising a second shrink film that partially covers the first shrink film and conceals the film welding line.

6. The second shrink film has a cylindrical shape, The shrink package according to claim 5 , wherein the first shrink film is placed over the entire periphery of the side of the storage container or group of storage containers.

7. 7. The shrink package according to claim 5, wherein a package marking or a bar code is printed on the second shrink film.

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