Shrink-wrapped

Abstract

To provide a shrink package formed by shrink-packaging a storage container that prevents a first shrink film from being torn and also prevents dust and various germs from entering the inside through minute holes.SOLUTION: A shrink package 1 is configured to include: a storage container group 10 formed by stacking a plurality of storage containers vertically; a first shrink film 20 that wraps around the storage container group 10; and a sheet member 30 laminated on an opening covering part 23 that covers an opening of the storage container positioned at the uppermost. Thickness of the first shrink film 20 is increased by a laminated amount of the laminated sheet member 30 in the opening covering part 23, thereby, strength is improved and tearing is suppressed. In the opening covering part 23, minute holes for air vent formed in the first shrink film is closed by the lamination of the sheet member 30, thereby, dust, various germs or the like cannot enter into the storage container through the minute holes.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a shrink-wrapped product obtained by wrapping a storage container with a first shrink film. do. [Background technology]

[0002] As a food storage container, there is a type generally called a side dish case. In addition, as a side dish case, it can be used not only for commercial purposes for food manufacturers, but also for home use. is also widely used.

[0003] The side dish case is made by pressing sheets of paper, plastic film, aluminum foil, etc. The container is formed by: having a bottom wall and a peripheral wall extending upward from the bottom wall; and opening upward; The peripheral wall has numerous pleats formed due to the manufacturing process. Such household side dish cases are used during distribution, including truck transport, and at retail stores. In order to prevent dust and germs from adhering to the side dish case when it is sold, multiple pieces are stacked on top of each other. The product is then packaged and put on the market. For example, Patent Document 1 discloses a method for packaging stacked side dish cases in a plastic packaging case with a lid. It is disclosed that the composition is packaged in a plastic bag.

[0004] In recent years, however, efforts have been made to reduce the use of plastic materials as much as possible, taking into consideration the burden on the environment. As part of this, as shown in Patent Document 2, stacked side dish cases are shrink-wrapped. It has also been proposed to wrap the product in a first shrink film using a packaging technique. In this way, the packaging material is changed from plastic cups to the first shrink film. This makes it possible to reduce the amount of plastic material used. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2012-136282 A [Patent Document 2] JP 2005-335764 A Summary of the Invention [Problem to be solved by the invention]

[0006] However, since the first shrink film is thin, its strength is not high. do not have. In addition, for storage containers that open upwards, such as side dish cases, shrink wrapping is required. When the film is inserted, the film is almost in close contact with the outer surface from the bottom wall to the peripheral wall, but does not cover the opening. A large space is created between the film and the bottom wall of the container. If the part covering the opening of the storage container of the lining film becomes raised, It can be said that this area is particularly prone to tearing compared to areas that are in close contact with the outer surface. Specifically, shrink-wrapped products are stacked on top of each other during transportation, and When the product was on display, the packaging was torn apart simply by someone pushing the film covering the opening with their finger. There is concern that this could lead to

[0007] In addition, when carrying out the shrink-wrapping process, the air inside is released and the first shrink In order to make the film adhere to the outer surface of the container, the film has micro holes on almost the entire surface for air release. It is essential to provide pores. However, when such fine holes are formed, the openings in the film may become visible during transportation or display. There is a risk of dust and germs getting into the container through the micropores in the covered area, which is unhygienic. There is none.

[0008] The problem to be solved by the present invention is to shrink-wrap a storage container such as a side dish case. In the shrink-wrapped product, the first shrink film covering the opening of the container is It prevents the container from being torn and allows the contents of the container to pass through the micro holes in the first shrink film. This is to prevent dust and germs from entering the inside of the device. [Means for solving the problem]

[0009] In order to solve the above problems, the shrink-wrapped body according to the present invention is a bottom and a bottom-to-bottom A storage container such as a side dish case having a rising side portion and opening upward, and A first shrink film that envelops the container and the container for the first shrink film. and a sheet member laminated on the opening covering portion that covers the opening. The shrink-wrapped product of the present invention has a bottom and a side portion rising from the bottom. A storage container group is formed by stacking a plurality of storage containers each having an opening on the top, and the storage container group is A first shrink film for wrapping and a container for storing the first shrink film. a sheet member laminated on an opening covering portion that covers the opening of the uppermost storage container; The configuration is designed to provide this.

[0010] When the shrink-wrapped product according to the present invention is constructed as described above, the first shrink film Since the thickness of the packaging material is increased by the amount of the sheet member laminated in the opening covering portion, , the strength is improved, and tearing of the film at the opening covering portion is suppressed. In addition, in the opening covering portion, the first shrink film is provided with fine exhaust air holes. Since the holes are blocked by the lamination of the sheet material, air flows through the micropores from the opening to the inside of the storage container. This prevents the intrusion of dust, bacteria, etc., and has also improved hygiene.

[0011] In the shrink-wrapped product according to the present invention, the sheet member is disposed at the most distal end of the opening of the storage container. It is preferable to adopt a configuration in which the area is in the range of 70% to 90% of the large opening area. In addition, when the side of the container is expanded and raised from the bottom, the sea The bottom member has substantially the same shape as the bottom of the storage container, and the opening edge of the storage container and the sheet It is preferable to adopt a configuration in which a gap of a substantially constant width is formed between the outer edges of the members.

[0012] In the shrink-wrapped product according to the present invention, the thickness of the sheet member is 25 μm to 110 μm, and the ratio of the thickness of the sheet member to the thickness of the first shrink film is It is preferable to adopt a configuration in which the number is 3 to 14. The first shrink film is made of a polyethylene resin, a polystyrene resin or the like. or polypropylene-based resin, and the sheet member is made of paper, raw material, A small amount of degradable resin, polyethylene resin, polystyrene resin or polypropylene resin It is preferable that the composition is composed of at least one type of material. In the shrink-wrapped product according to the present invention, the sheet member is the first shrink-wrap The film is also laminated on a side covering portion covering the side of the storage container or a bottom covering portion covering the bottom. It is possible to adopt a configuration in which

[0013] In the shrink-wrapped product according to the present invention, the first shrink film has micropores. A second shrink film having no micropores is partially covered on the first shrink film. a link film, the second shrink film being connected to the first shrink film; A configuration in which the fine pores of the film are blocked can be adopted. In this case, the second shrink film has a cylindrical shape, and the first shrink film has a A film is placed over the link film and covers the entire side of the container or container group. It is preferable to adopt the configuration described above. Effect of the Invention

[0014] Since the shrink-wrapped body is constructed as described above, the first shrink wrap at the portion covering the opening of the container can be easily removed. This prevents the ink film from tearing and allows the ink to pass through the micro-holes in the first shrink film. This makes it possible to prevent dust and germs from entering the inside of the storage container. [Brief description of the drawings]

[0015] [Figure 1] FIG. 1 is a perspective view of a shrink-wrapped body according to a first embodiment; [Diagram 2] A perspective view of the storage container group [Diagram 3] FIG. 2 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 the sheet members are laminated; [Diagram 5] FIG. 13 is a perspective view of a shrink-wrapped body according to a second embodiment; [Figure 6] FIG. 13 is a perspective view of a shrink-wrapped body according to a third embodiment; [Figure 7] FIG. 13 is a perspective view of a shrink-wrapped body according to a fourth embodiment; [Figure 8] FIG. 13 is a perspective view of a shrink-wrapped body according to a fifth embodiment; [Figure 9] FIG. 13 is a perspective view of a shrink-wrapped product according to a sixth embodiment; [Figure 10] FIG. 13 is a perspective view of a shrink-wrapped product according to a seventh embodiment; [Figure 11] FIG. 13 is a perspective view of a shrink-wrapped product according to an eighth embodiment; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] 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 of a group of storage containers to be packaged. 10, and a first shrink-wrap formed by wrapping the storage container group 10 with shrink-wrap. The first shrink film is laminated at a specific position on the outer surface of the first shrink film. Or it will be. The shrink-wrapped product 1 is distributed in the market in this state, and the first shrink-wrapped product is purchased. The film 20 is broken, and the overlapping storage containers 11 are individually removed from the storage container group 10. It is used for storage.

[0017] As shown in FIG. 2, the storage container group 10 is made up of a plurality of storage containers 11 stacked vertically. Each storage container 11 is made up of a bottom wall 11a and a side wall 11b rising from the bottom wall 11a. The overlapping storage containers 11 have bottom walls 11a and 11b, respectively. , the side walls 11b are in contact with each other. The type of the storage container 11 is not particularly limited, but it is preferably made of a sheet of paper or the like, and can be used to store side dishes for lunch boxes. Examples of such containers include side dish cases which are widely used for storing food such as:

[0018] The storage container 11 shown in FIG. 2 is such a side dish case, and is made of a flat sheet body ( It is produced by pressing a blank into the desired shape using a press molding device. It is something. The side dish case serving as the storage container 11 has a bottom wall 11a which is circular in plan view and a wall extending from the bottom wall 11a. The side wall 11b has a side wall 11b that rises upward, and the side wall 11b has a pressing process. Vertical stripe-like pleats 11d are formed. Here, the sheet body for manufacturing the side dish case as the storage container 11 is particularly Although not limited thereto, it is possible to use paper, resin film, aluminum foil, or a composite material made by bonding these. An example is a substrate. In addition, when manufacturing the side dish case as the storage container 11 by press molding, Multiple blanks are stacked and fed into the press forming device, where they are pressed together to form the stacked parts. A plurality of containers can be manufactured at the same time in a matched state, and these can be used as a storage container group 10. It is also possible to use

[0019] In FIG. 2, the bottom wall 11a of the storage container 11 is shown to be circular in plan view. However, the shape is not limited to this, and the bottom wall 11a may be elliptical, triangular, or rectangular in plan view. The shape may be a polygon such as a polygon. The number of storage containers 11 in the storage container group 10 and the dimensions of each storage container 11 are not particularly limited. stomach.

[0020] As shown in FIG. 1, FIG. 3 and FIG. 4, a first shrink wrap wraps the storage container group 10. The room 20 is in close contact with the outer surface of the bottom wall 11a of the storage container 11 which is the lowest one of the storage container group 10. The bottom covering portion 21 is in contact with the outer edge of the side wall 11b of the storage container 11 arranged in parallel above and below. and an opening covering part 23 that covers the opening 11c of the uppermost storage container 11. The first shrink film 20 is made of a conventional shrink packaging technology, The group of containers 10 is wrapped in a material that allows air to escape from the inside of the package when the package is shrunk. The area and position of the micropores are not limited to this. As long as the air can be smoothly released to the outside without being fixed, it is formed locally. The number of micropores is not important. As shown in FIG. 3 and FIG. 4, the opening covering portion 23 and the side covering portion 24 of the first shrink film 20 are The covering portion 22 has a film welding line 24 formed thereon due to the manufacturing process. The line 24 crosses the opening covering portion 23 and both ends of the line 24 are located midway in the vertical direction of the side covering portion 22. It is terminated by

[0021] The type of the first shrink film is not particularly limited, but may be any film commonly used for shrink packaging. Possible materials include polyethylene resin, polystyrene resin, or polypropylene resin. An example is a resin film. A biaxially oriented shrink film is used. The thickness of the first shrink film is preferably 7.5 μm to 30 μm, and more preferably 15 μm or less. It is more preferable that the thickness of the first shrink film is less than 7.5 μm. The film is easily torn during transportation of the shrink-wrapped body 1 due to insufficient strength, and the thickness is 3 If it exceeds 0 μm, the amount of plastic material used will be excessive, which will place a heavy burden on the environment. At the same time, the rigidity of the film increases, which hinders the film from coming into close contact with the container 11.

[0022] As shown in FIG. 1 and FIG. 4, the sheet member 30 is a first shrink film 20. Among them, it is laminated on the outer surface from the opening covering portion 23 to the side covering portion 22. The sheet member 30 includes a circular opening laminated portion 31 laminated on the opening covering portion 23 and a side covering portion 2 A pair of rectangular side laminated portions 32 laminated on the opening laminated portion 31 and a belt connecting the opening laminated portion 31 and each side laminated portion 32. The sheet member 30 is made of a connecting portion 33 having a shape like a first shrink film. The film welding line 24 is concealed. The lamination of the sheet member 30 prevents the tearable opening covering portion of the first shrink film 20 from being torn. 23 can be reinforced, so that the relevant part can be prevented from being torn and the relevant part can be Since the fine holes in the container can be blocked, the intrusion of dust and the like into the container 11 can be prevented. It can be prevented. In addition, the lamination of the sheet member 30 forms a film welding line of the first shrink film 20. Since the film welding line 24 can be concealed, the film welding line 24 is not visible on the outer surface of the shrink package 1. Not only does it look good, but it also feels better to the touch because the film welding line 24 is not directly touched by hands and fingers. It is being improved.

[0023] The manner in which the sheet member 30 is laminated to the first shrink film 20 is not particularly limited. The sheet member 30 is laminated to the first shrink film. The type of adhesive or pressure sensitive adhesive used is not particularly limited, but it should be one that is more adhesive than water soluble. An example of such an adhesive is a solvent-based acrylic adhesive. In addition, in FIG. 1, the sheet member 30 is provided on the outer surface from the opening covering portion 23 to the side covering portion 22. However, it may be laminated on the inner surface of these materials. If laminated on the inner surface, shrink wrapping is required. Since there is no step between the first shrink film 20 and the sheet member 30 on the outer surface of the housing 1, , it feels good to the touch. The lamination process of the sheet member 30 is performed by laminating the storage container group 10 with the first shrink film 20. This may be done either before or after the shrink wrapping process, but it is better to do this after the shrink wrapping process. The air vent effect of the micro holes in the film can be fully utilized by layering the film. When the sheet member 30 is laminated on the inner surface from the opening covering portion 23 to the side covering portion 22, The lamination will take place before the shrink wrapping process.

[0024] The material of such a sheet member 30 is not limited, but may be paper, a resin film, a metal foil, etc. Examples include: Examples of the resin film as the sheet member 30 include biodegradable resin films, polyethylene films, etc. resin film, polystyrene resin film or polypropylene resin film and synthetic paper (Yupo (registered trademark)) whose main raw material is polypropylene resin. Examples of the metal foil 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, for example by laminating them together. It is also possible to use

[0025] The sheet member 30 may be transparent or opaque. When the sheet member 30 is transparent, the shrink-wrapped body 1 is sealed at the time of purchase. In the case of an opaque container, the inside of the container can be easily seen. This makes it easy to use the label as a label with a printed label or bar code. In FIG. 1, the sheet member 30 also serves as a label, and a package indication 35 is printed on the sheet member 30. It has been done. The sheet member 30 may be partially transparent and the rest may be opaque. It is possible to visually check the inside of the storage container 11 from the outside and to print package markings or the like on the opaque areas. It is.

[0026] The thickness of the sheet member 30 varies depending on the material, but is set to a value equal to or smaller than the thickness of the first shrink film 20. The thickness should be strong enough to prevent cracks, and should be between 25μm and 110μm. Anything within the range is acceptable, and more preferably, anything within the range of 40 μm to 100 μm is acceptable. When the thickness of the sheet member 30 falls below 25 μm, the first shrink film 20 is reinforced. If the effect of the sealing becomes insufficient, the opening covering portion 23 may be torn, or the film welding line 24 may be broken. The effect of concealing the film becomes insufficient, and the shape of the film welding line 24 is visible on the sheet member 30. It may cause the sheet to lift up, resulting in a poor appearance and feel. If the thickness of the member 30 exceeds 110 μm, the material will be excessive, resulting in high costs. As the material for the sheet member 30, CPP, synthetic paper, C-PET, etc. are particularly difficult to stretch and have good elasticity. This is preferable because the film is tear-resistant. In addition, the thickness of the sheet member 30 relative to the thickness d (μm) of the first shrink film 20 When the ratio D / d of D (μm) satisfies 3 to 14, the tear of the first shrink film 20 When the ratio D / d is less than 3, the sheet member 30 is in the first shrub. The ink film 20 may not be thick enough to prevent tearing. In this case, the thickness of the sheet member 30 becomes too thick relative to the first shrink film 20. The flexibility is reduced, and the ability to conform to the first shrink film during lamination is reduced. Sometimes it doesn't stack properly.

[0027] The shape of the sheet member 30 is a circular opening laminated portion 31 and a rectangular side laminated portion 32 in FIG. 1 and FIG. 4. However, the present invention is not limited to this and may be implemented by at least the first The shrink film 20 can be laminated on the outer surface of the opening covering portion 23, and the opening covering portion 23 can be There are no particular limitations on the shape as long as it can conceal the film welding lines 24 . Other shapes of the sheet member 30 include a circle, an ellipse, a polygon such as a triangle or a square, etc. Examples include: The dimensions of the sheet member 30 are not particularly limited, but may be as large as the maximum opening surface area of ​​the opening 11c of the storage container 11. It is preferable that the magnitude is 70% to 90% of the product. The dimensions of the sheet member 30 are 70% of the maximum opening area of ​​the opening 11c of the storage container 11. If the size is smaller than this, the film welding line 24 may not be concealed sufficiently, or the opening covering portion 23 may not be covered. There is a risk that the reinforcement will be insufficient. In addition, when the sheet member 30 is opaque, its dimensions are smaller than the opening 11c of the storage container 11. When the size of the opening 11c exceeds 90% of the maximum opening area, the outer edge of the opening 11c and the sheet member 30 Since there is almost no gap between the outer edge of the shrink-wrapped body 1 and the storage It becomes difficult to see inside the container 11. If the numerical range is 90% or less, the design on the bottom inner surface and the side inner surface of the storage container 11 If printing is applied, the gap between the outer edge of the opening 11c and the outer edge of the sheet member 30 may leak. By visually checking this, the design of the product can be fully appreciated even in its packaged state. If the food is shrink-wrapped and contains small portions of frozen or refrigerated food, The food can be identified through the gap.

[0028] In this embodiment, the bottom wall 11a of the storage container 11 is circular in plan view, and the sheet member 30 is opened. The opening laminated portion 31 covers the bottom wall 11a of the storage container 11 and the opening 11c of the sheet member 30. It is preferable that the shapes of the portions to be joined are substantially the same. In this way, the shape of the opening 11c of the storage container 11 and the opening laminated portion of the sheet member 30 Since the shape of the opening 11c is approximately similar to the shape of the opening laminated portion 31, the shape between the outer edge of the opening 11c and the outer edge of the opening laminated portion 31 is Therefore, the width of the annular gap formed is substantially constant. When the annular gap 3 is pressed by a finger, the first shrink film 20 in the annular gap The force of the finger is distributed almost evenly at any point in the circumferential direction. The tearing of the shrink film 20 is prevented from being concentrated in a certain part of the shrink film 20, and the tearing is further prevented. In addition, 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 substantially similar in shape, the film welding on the opening covering portion 23 of the first shrink film 20 is This makes it easier to conceal line 24.

[0029] FIG. 5 shows a shrink-wrapped product 2 according to a second embodiment. In this embodiment, the sheet member 30 is a part covering the opening 2 of the first shrink film 20. 3. It consists only of a circular opening laminated portion 31 laminated to the laminated member 3. Even in this case, the opening covering portion, which is the most easily torn portion of the first shrink film 20, Since the sheet member 30 is used to reinforce the sheet member 23, the sheet member 30 can be prevented from being torn. The film welding line 24 is located on the opening covering portion 23, which is the most noticeable and is likely to be touched by fingers. Since the defects are concealed, the aesthetic appearance and feel are improved accordingly. Since the sheet member 30 is composed of only the opening laminated portion 31, the first shrink film 20 This makes the lamination process easy, and reduces the workload and material costs.

[0030] FIG. 6 shows a shrink-wrapped product 3 according to a third embodiment. In this embodiment, the sheet member 30 is a part covering the opening 2 of the first shrink film 20. 3, and a rectangular opening laminated portion 31 laminated separately to the side covering portion 22. The laminated portion 32 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 separated, the first It can be laminated onto shrink film, making lamination easy. The most pointed end of the film welding line 24 on the side covering portion 22 is the side laminated portion. Since it is concealed by 32, the effect of improving the aesthetic appearance and feel is excellent.

[0031] FIG. 7 shows a shrink package 4 according to a fourth embodiment. In this embodiment, the circular bottom laminate portion 34 of the sheet member 30 is a first shrink filler. The bottom cover 21 of the cylinder 20 is laminated on the bottom cover 21 of the cylinder 20. Although not shown, in the same manner as in the second embodiment, The sheet member 30 is also laminated to the opening covering portion 23 of the first shrink film 20. . This reinforces the bottom covering portion 21, which is easily worn during transportation, and the first shrink wrap This prevents Film 20 from tearing from the bottom. In this embodiment, the film welding line 24 is The bottom covering portion 21 of the side covering portion is crossed and both ends are terminated in the middle of the side covering portion. Since the film welding line 24 of the part 21 is concealed by the bottom laminated part 34, the appearance and the touch are good. The improvement effect of the above is exerted accordingly.

[0032] FIG. 8 shows a shrink-wrapped product 5 according to the fifth embodiment. In this embodiment, the container 11 has a bottom wall 11a in the shape of a rectangle with rounded corners. The side wall 11b extending from the bottom wall 11a has corners at positions corresponding to the corners of the bottom wall 11a. The folds 11d are formed on the chisel. The sheet member 30 is laminated only on the opening covering portion 23 of the first shrink film 20. The shape of the container 11 is a rounded rectangle, which is almost the same as the bottom wall 11a of the container 11. It is.

[0033] FIG. 9 shows a shrink-wrapped product 6 according to the sixth embodiment. In this example, a sheet member 30 consisting of only a circular opening laminated portion 31 is subjected to a first shrink wrap. By peeling it off from the first shrink film 20, a window 25 is automatically formed in the first shrink film 20. It is now possible to do so. 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 form of the window 25 is not particularly limited, but may be formed in the sheet member of the first shrink film 20. Slits are made in advance in the lamination area, or fine holes in the lamination area of ​​the sheet material are sewn by a sewing machine. The adhesive layer 34 is arranged in a mesh pattern so that it breaks when the sheet member 30 is peeled off. The following can be given as an example.

[0034] FIG. 10 shows a shrink-wrapped product 7 according to a seventh embodiment, and FIG. 11 shows a shrink-wrapped product 7 according to an eighth embodiment. The figure shows the package 8. In the shrink-wrapped body 7, the storage container 11 has a bottom wall 11a that is circular in plan view. The side wall 11b extends from the side wall 11b and has folds 11d formed in almost the entire area. In the shrink-wrapped body 8, the bottom wall 11a of the storage container 11 is The side wall 11b extends from the rectangular shape with rounded corners. The bottom wall 11a has folds 11d formed only at locations corresponding to the corners. In these examples, the second shrink film 40 having a cylindrical shape is inserted into the first shrink film 40. It is placed over the entire periphery of the side covering portion 22 of the film 20 . The second shrink film 40 is formed by using a general shrink packaging technique. The shrink film 20 is shrunk so as to be in close contact with the outer surface of the shrink film 20. The second shrink film 40 has openings at the top and bottom to allow air to escape to the outside. Therefore, the second shrink film 40 does not need to have micropores. Unlike the link film 20, it does not have micropores.

[0035] The second shrink film 40 covers the side covering portion 22 of the first shrink film 20. Since the first shrink film 20 is covered and protected, tearing of the first shrink film 20 is suppressed. The second shrink film 40 covers the side covering portion 22 of the first shrink film 20. This prevents dust and other foreign matter from entering the inside of the container 11. The micropores in the first shrink film 20 are covered only by the side covering portion 22. If the micropores are provided locally on the second shrink film 4, almost all of the micropores can be formed on the second shrink film 4. Since it can be blocked at 0, it is possible to be completely sure that dust and other particles are prevented from entering. In addition, the second shrink film 40 covers the side of the first shrink film 20. The film welding line 24 that appears on the portion 22 is concealed. The feel of In24 has also been improved as it does not come into direct contact with the hands and fingers.

[0036] The second shrink film 40 may be transparent or opaque. When purchasing the packages 7 and 8, the inside of the storage container 11 can be easily seen. In this case, the product must function as a label with package information and barcodes printed on it. This becomes possible. In FIG. 10 and FIG. 11, the second shrink film 40 functions as a label. The package has a package display 41 printed on it. In this case, the package display 41 identifies the The appearance is also improved since the film welding line 24 is difficult to see.

[0037] The type of the second shrink film is not particularly limited, but may be any film commonly used for shrink packaging. Examples of resins that can be used include polyethylene terephthalate resins, polyolefin resins, and poly Vinyl chloride resin, polyethylene resin, polystyrene resin or polypropylene resin A uniaxially oriented shrink film is used, and there is also a slight biaxial stretching. A so-called uniaxially semi-stretched shrink film that shrinks by a certain amount can also be used. By using a material for the first shrink film that is stronger than the material for the second shrink film, This can prevent damage to the shrink-wrapped bodies 7 and 8, tearing of the film, etc. For example, if the first shrink film is made of polyethylene resin, the second shrink film may be made of polyethylene resin. For the ink film, a polyethylene terephthalate resin may be used.

[0038] The thickness of the second shrink film is preferably 7.5 μm to 60 μm, and more preferably 15 μm or less. The thickness of the second shrink film is preferably from 100 μm to 40 μm. By making it larger than the thickness of the film, damage to the shrink-wrapped bodies 7 and 8, tearing of the film, etc. However, if the thickness is large, the rigidity of the film increases and the adhesion decreases. However, in the shrink-wrapped bodies 7 and 8, the first shrink film has already Since the entire film is being broadcast, the second shrink film does not require as much adhesion. stomach.

[0039] The embodiments disclosed herein are illustrative and not restrictive in all respects. The scope is indicated by the scope of the claims, and includes the scope of the claims and equivalent meanings. including all modifications and variations thereof.

[0040] For example, in the embodiment, the shrink-wrapped body 1 is packaged in a plurality of storage containers 11. However, it may be a single storage container 11. The shape of the container 11 is not limited to the embodiment as long as it has a bottom and sides and opens upward. For example, in the embodiment, the bottom wall 11a and the side wall 11b are clearly defined. Alternatively, it may be in a bowl shape. In the embodiment, the shrink-wrapped product 1 includes a container group 10, a first shrink film 2 0 and the sheet member 30 are the only components, but in addition, for example, a storage container 11 Food and other items stored in small portions may also be included as components. In the embodiment, in order to hide the film welding line 24 of the first shrink film 20, As shown in FIG. 1, the sheet members 30 are laminated, but the lamination position of the sheet members 30 is the film welding line. It does not have to match in 24.

[0041] In the embodiment, the second shrink film 40 has a cylindrical shape, but is not limited thereto. It is sufficient that the adhesive layer 24 covers at least a part of the first shrink film 20 and is in close contact with it. In the embodiment, the cylindrical second shrink film 40 is The tube is covered only on the side covering portion 22 of the tube 20, but by lengthening the axial length of the tube, It may also be configured to cover the outer edges of the bottom covering portion 21 and the opening covering portion 23. The second shrink film 40 and the sheet member 30 are partially or entirely overlapped. It may be possible. When the two sheets are overlapped, the sheet member 30 is placed on the inside, and the second shrink film 40 is placed on the inside. When the second shrink film 40 is placed on the outside, the sheet member 30 is prevented from being damaged or the like. In this case, the second shrink film 40 is Before the above steps, the first shrink film 20 is heated and softened, and then the sheet member 3 is heated and softened. 0, the sharpness of the film welding line 24 is reduced and it is soft to the touch. In order to improve the grip, the sheet member 30 can be pressed from above and deformed. It is also preferable in this sense. In the embodiment, the package display 41 is provided on the second shrink film 40. Instead, between the first shrink film 20 and the second shrink film 40, It is also possible to clamp and fix a separate label or the like. [Explanation of symbols]

[0042] Shrink-wrapped bodies of the embodiments 1 to 8 10 Storage Containers 11 Storage Container 11a Bottom wall 11b Side wall 11c aperture 11d Pleats 20 The first shrink film 21 Bottom covering part 22 Side covering part 23 Opening Coverage 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 a side portion rising from the bottom and opening upward; a first shrink film that encases the container; a sheet member having an opening lamination portion laminated to an opening covering portion of the first shrink film that covers the opening of the storage container, the area of ​​the sheet member is 70% to 90% of the maximum opening area of ​​the opening of the storage container; Furthermore, the opening laminated portion of the sheet member does not protrude from the opening covering portion.

2. A storage container having a bottom and a side portion rising from the bottom and opening upward is stacked vertically. A group of storage containers formed by combining the above-mentioned components; a first shrink film that encases the group of storage containers; The first shrink film is opened for opening the container located at the top of the group of containers. and a sheet member having an opening laminate portion that is laminated to an opening covering portion that covers the mouth. the area of ​​the sheet member is 70% to 90% of the maximum opening area of ​​the opening of the storage container; Furthermore, the opening laminated portion of the sheet member does not protrude from the opening covering portion.

3. The thickness of the sheet member is 25 μm to 110 μm, The ratio of the thickness of the sheet member to the thickness of the first shrink film is 3 to 14. The shrink-wrapped product according to claim 1 or 2.

4. The first shrink film is made of a polyethylene resin, a polystyrene resin or a poly At least one polypropylene-based resin is used. The sheet member may be made of paper, a biodegradable resin, a polyethylene resin, a polystyrene resin, or Any one of claims 1 to 3, which is composed of at least one polypropylene resin. The shrink-wrapped product according to any one of claims 1 to 5.

5. The container has sides that extend upward from the bottom, The sheet member has substantially the same shape as the bottom of the storage container, A gap having a substantially constant width is formed between the opening edge of the storage container and the outer edge of the sheet member. The shrink-wrapped product according to any one of claims 1 to 4.

6. The sheet member is a side covering for covering a side portion of the storage container of the first shrink film. The present invention relates to a method for manufacturing a casing for a casing, comprising: The above shrink-wrapped item.

7. The first shrink film has micropores, A second shrink film having no micropores is partially covered on the first shrink film. It also has an ink film. The second shrink film closes the micropores of the first shrink film. The shrink-wrapped product according to any one of claims 1 to 6.

8. The second shrink film has a cylindrical shape, From above the first shrink film, the entire periphery of the side of the storage container or the group of storage containers The shrink-wrapped product according to claim 7, which is wrapped over the entire surface of the substrate.

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