Flap labels and food packaging for food packaging

Abstract

To provide a food packaging flap label and food packaging that can be easily detected by visual inspection. [Solution] The food packaging flap label 3 comprises a lid portion 10 fixed to the surface of a food packaging body 2 that contains food inside, covering an opening 6 that opens to the inside of the food packaging body 2, and a reattachable sealing portion 11 extending from the lid portion 10 and attached along the periphery 7 of the opening 6 of the food packaging body 2. When the sealing portion 11 is peeled off from the food packaging body 2 during opening, a pattern such as letters, marks, colors, or designs is displayed on the sealing portion 11 and the sealing area 8 on the food packaging body 2 to which the sealing portion 11 is attached.

Description

Technical Field

[0001] The present invention relates to a flap label for food packaging and a food package.

Background Art

[0002] Recently, a reusable flap label has been used as a lid for the outlet of a package containing contents such as wet tissues that contain liquid. Since this flap label can maintain a high sealing property of the package even after being opened once, it has come to be used as a lid for food packaging. When a flap label that can be opened and closed is used as a lid for food packaging, there is an advantage that consumers can take out only the necessary amount, and food loss can also be suppressed.

[0003] Patent Document 1 describes a resealable container including a tray, a top film, and a reusable seal label, in which an opening of the tray is covered with the top film and the seal label. A cut portion is formed in the top film, and an opening / closing portion and a hinge portion are formed by opening the cut portion. The seal label is detachably and reattachably attached to the entire cut portion of the top film, and a configuration is disclosed in which the seal label functions as an outer lid and the opening / closing portion functions as an inner lid.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] On the other hand, with the resealable container described in Patent Document 1, it is difficult to determine whether the container has been opened or not. For reasons such as product management and quality control, it is desirable that it be easy to determine whether the container has been opened. Also, from the standpoint of preventing tampering, it is desirable to be able to easily detect whether or not the flap label has been peeled off.

[0006] This invention has been made in view of the above circumstances, and aims to provide a food packaging flap label and food packaging that can be easily detected by visual inspection when opened. [Means for solving the problem]

[0007] To solve the above problems, a first aspect of the present invention provides a food packaging flap label having a lid portion fixed to the surface of a food packaging body containing food inside and covering an opening that opens the inside of the food packaging body, and a reattachable sealing portion extending from the lid portion and attached along the periphery of the opening of the food packaging body, wherein when the sealing portion is peeled off from the food packaging body when opened, a pattern or coloring such as letters, marks, designs is displayed on the sealing portion and the sealed area of ​​the food packaging body to which the sealing portion is attached.

[0008] A second aspect of the present invention is a food packaging flap label according to the first aspect, comprising an tamper-evident label affixed to the boundary between the sealing portion and the food packaging body.

[0009] A third aspect of the present invention is a food packaging flap label according to the first aspect, wherein the sealing portion comprises a first label and a second label provided on the first label, the first label comprising, from the surface of the food packaging body to which it is attached, a permanent adhesive layer and a film substrate in that order, the second label comprising, on the film substrate, a removable adhesive layer, a substrate layer and a support in that order, and a pattern layer formed on a part of the surface of the support on the substrate layer side.

[0010] A fourth aspect of the present invention is a food packaging flap label according to the third aspect, wherein the adhesive strength of the permanent adhesive layer is greater than the adhesive strength of the re-peelable adhesive layer.

[0011] A fifth aspect of the present invention is a food packaging flap label according to the second aspect, wherein the tamper detection label is made of the same material and configuration as the food packaging flap label.

[0012] A sixth aspect of the present invention is a food packaging body equipped with a food packaging flap label according to the first to fifth aspects, wherein the food packaging body body includes a container for containing food and an inner lid having the opening and fixed to the top or side of the container, and the lid portion is fixed to the inner lid.

[0013] A seventh aspect of the present invention is a food packaging body according to the sixth aspect, wherein the container is made of plastic, paper, glass, or ceramic.

[0014] An eighth aspect of the present invention is a food packaging body equipped with a food packaging flap label according to the first to fifth aspects, wherein the food packaging body body has a bag for containing food and an opening / closing part to which the opening of the bag is bonded, and the sealing part includes the lid and is attached to the opening / closing part.

[0015] A ninth aspect of the present invention is a food packaging body according to the eighth aspect, wherein the food packaging body body and the opening are formed by peeling off the opening / closing part that was bonded after opening the sealing part. [Effects of the Invention]

[0016] According to the present invention, a food packaging flap label that can be easily detected by visual inspection and a food packaging using this flap label can be obtained. [Brief explanation of the drawing]

[0017] [Figure 1] This is an exploded perspective view showing one embodiment of the food packaging of the present invention. [Figure 2] It is a perspective view showing the state where the flap label for food packaging of one embodiment of the present invention is opened. [Figure 3] It is a perspective view showing the state where an opening detection label is attached to the food package of one embodiment of the present invention. [Figure 4] It is a schematic cross-sectional view of the flap label for food packaging of one embodiment of the present invention. [Figure 5] It is a schematic cross-sectional view in the middle of peeling the flap label for food packaging of one embodiment of the present invention. [Figure 6] It is a perspective view showing another embodiment of the food package of the present invention. [Figure 7] It is a perspective view showing still another embodiment of the food package of the present invention. [Figure 8] It is a perspective view showing the state where the flap label for food packaging of another embodiment of the present invention is opened, (a) shows the state where the opening / closing part is unopened, and (b) shows the state where the opening / closing part is opened.

Mode for Carrying Out the Invention

[0018] The food package 1 of one embodiment (the first embodiment) of the present invention will be described with reference to FIGS. 1 to 3. FIG. 1 is an exploded perspective view showing one embodiment of the food package of the present invention. FIG. 2 is a perspective view showing the state where the flap label for food packaging of one embodiment of the present invention is opened. FIG. 3 is a perspective view showing the state where an opening detection label is attached to the food package of one embodiment of the present invention.

[0019] <Food Package> As shown in FIGS. 1 and 2, the food package 1 of the present embodiment is composed of a food package body 2 that houses food inside and a flap label 3. Further, the food package body 2 includes a tray (container) 4 that houses food and an inner lid 5 attached to the upper part of the tray 4. Further, the flap label 3 is fixed to the upper surface of the food package body 2 of the food package 1.

[0020] Figure 3 shows an unopened food package 1, with an tamper detection label 13 affixed to the boundary between the flap label 3 and the inner lid 5 of the food package body 2.

[0021] (Tray) Tray 4 has a bottom surface and a side surface that extends upward from the bottom surface. This side surface forms an opening at the top, and the tray is shaped in such a way that food can be placed inside and stored through the opening.

[0022] The materials used to construct the tray 4 can be selected from materials suitable for holding food, such as plastic, paper, glass, or ceramics. For example, in the case of foods with high moisture content, the material of the tray 4 can be made of a water-resistant material, and the material of the tray 4 can be selected according to the food. In addition, the shape of the tray 4 can take various forms, not just the approximately cubic shape shown in Figure 1.

[0023] (Inner lid) In this embodiment, an inner lid 5 is attached to the top of the tray 4. The inner lid 5 has an opening 6, and is configured so that food can be removed from this opening 6.

[0024] The inner lid 5 may be made of the same material as the tray 4, and can be selected from materials such as plastic, paper, glass, or ceramic. Alternatively, it may be made of a different material from the tray 4, and a material that can be used for food packaging and is suitable for fixing the flap label 3 described later can be selected. Note that if the flap label 3 can be fixed directly to the tray 4, the inner lid 5 may not be necessary.

[0025] <Flap label> As shown in Figure 2, in this embodiment, the food packaging 1 has a flap label 3 fixed to the upper surface of the food packaging body 2. Specifically, the flap label 3 is fixed to a part of the inner lid 5.

[0026] The flap label 3 of this embodiment has a lid portion 10 that covers the opening 6 of the inner lid 5 and a sealing portion 11 that extends from the lid portion 10. The flap label 3 is fixed to the inner lid 5 by a part of the lid portion 10 of the flap label 3 being adhered to the inner lid 5 of the food packaging body 2. In addition, the food packaging body 1 is sealed by the sealing portion 11 of the flap label 3 being attached along the periphery of the opening 6 of the inner lid 5.

[0027] (Lid) The lid portion 10 of the flap label 3 in this embodiment is divided into a portion that is fixed to the inner lid 5 of the food packaging body 2 and a portion that covers the opening 6 of the inner lid 5. The material of the lid portion 10 can be selected from various materials that can be used for food packaging.

[0028] (Sealing part) The sealing portion 11 of the flap label 3 is a part that extends outward from the lid portion 10 and is attached along the periphery 7 of the opening 6 of the inner lid 5. The sealing portion 11 is equipped with a tab 12. When opening the food packaging 1, the sealing portion 11 can be peeled off from the food packaging body 2 by pinching this tab 12 with the fingers.

[0029] As shown in Figure 2, when the sealing portion 11 of the flap label 3 is peeled off from the food packaging body 2 and the food packaging body 1 is opened, the letter M is displayed on the sealing portion 11. At the same time, the letter M is also displayed on the sealing area 8 of the food packaging body 2 to which the sealing portion 11 was attached. This letter may be something that clearly indicates that the package has been opened, such as "Opened." Alternatively, other letters, marks, colors, patterns, or other designs may be displayed. In this way, by displaying letters or other elements that were not displayed when the package was unopened, it is easy to detect whether or not the package has been opened.

[0030] As will be described later, the sealing portion 11 is configured to be reattachable even after being peeled off. Therefore, in the food packaging 1 of this embodiment, the food packaging 1 can be sealed by reattaching the flap label 3 even after it has been opened, thereby preventing the food contained inside from drying out or protecting it from moisture.

[0031] (Configuration of the sealing portion of the flap label) An example of the configuration of the sealing portion 11 of the flap label 3 in this embodiment will be described with reference to Figures 4 and 5.

[0032] As shown in Figure 4, the flap label 3 comprises a first label 50 and a second label 60 provided above the first label 50.

[0033] The first label 50 comprises, from the bottom in Figure 4, a permanent adhesive layer 51 and a film substrate 52 in that order. The second label 60 comprises, on the upper side of the film substrate 52, a removable adhesive layer 61, a substrate layer 62, and a support 63 in that order. The side of the support 63 that is in contact with the substrate layer 62 has a pattern layer 64 formed on a part of the support 63.

[0034] In this embodiment, as shown in Figure 5, the flap label 3 has a permanent adhesive layer 51 of the first label 50 attached to the inner lid 5 of the food packaging body 2. The flap label 3 can be opened by peeling off the second label 60 from the first label 50.

[0035] (First label) The first label 50 comprises, from the bottom of Figure 4, a permanent adhesive layer 51 and a film substrate 52 in that order.

[0036] The adhesive that can be used in the permanent adhesive layer 51 is not particularly limited, and one or more known adhesives can be used in combination. The adhesive for the permanent adhesive layer 51 is not particularly limited, but examples include adhesives mainly composed of acrylic adhesives, rubber adhesives, polyester adhesives, or silicone adhesives. Among these, it is preferable to use an acrylic adhesive. Acrylic adhesives have excellent weather resistance and can be obtained relatively inexpensively.

[0037] The film substrate 52 can be, for example, a plastic film, paper, or the like. The film substrate 52 may also be a brittle film substrate made of a relatively brittle and easily torn material. Suitable brittle film substrates include, for example, sheets made of paper such as glassine paper and transparent paper, polyvinyl chloride resin, ABS resin, polyvinyl alcohol resin, acrylic resin, polystyrene resin, polylactic acid resin, cellophane film, and the like.

[0038] (Second label) The second label 60 comprises, in order from the first label 50 side upwards, a removable adhesive layer 61, a base layer 62, and a support 63. The support 63 further comprises a pattern layer 64.

[0039] As shown in Figure 5, when attempting to peel the flap label 3 from the inner lid 5, the second label 60 is peeled off, and interfacial delamination occurs between the support 63 and the pattern layer 64, creating a gap 65. This causes a pattern to appear on the second label 60, making it visually possible to detect whether or not the flap label 3 has been peeled off from the inner lid 5.

[0040] The support 63 preferably has transparency that allows visual detection of whether or not the flap label 3 has been peeled off. For example, a transparent plastic film can be used as the support 63. Examples of materials for the plastic film include acrylic resins such as poly(meth)acrylate; polyamides such as fully aromatic polyamides, nylon 6, nylon 66, and nylon copolymers; polyester resins such as polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, and polyarylate; polyurethane resins such as polyurethane acrylate; polyethylene resins; polypropylene resins; poly(4-methylpentene-1); polyvinyl chloride resins; polyvinylidene chloride resins; polyvinyl alcohol resins; ethylene-vinyl acetate copolymers; polystyrene resins; polycarbonate resins; norbornene resins; and cycloolefin resins. Among these, polyamides and polyester resins are preferred in terms of transparency, cost, and versatility, and polyethylene terephthalate is more preferred.

[0041] The pattern layer 64 is necessary to visually detect when the flap label 3 is peeled off, that the second label 60 has been removed. It is preferable that the pattern layer 64 is a transparent layer. A transparent pattern layer 64 is preferable because it makes the changes before and after the peeling of the second label 60 clearer, and also because, when the flap label 3 is attached to the inner lid 5, it is possible to check information such as letters and patterns on the surface of the inner lid 5 through the flap label 3.

[0042] The pattern layer 64 is not particularly limited, but is preferably formed from a composition containing one or more selected from the group consisting of cellulosic resins such as methylcellulose, carboxymethylcellulose, and hydroxyethylcellulose; acrylic resins such as poly(meth)acrylate and polymethyl(meth)acrylate; urethane resins; acrylic urethane resins; polyester resins such as polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, and polyarylate; and epoxy resins. More preferably, the pattern layer 64 is formed from a composition containing one or more selected from the group consisting of acrylic resins, urethane resins, acrylic urethane resins, and polyester resins. Even more preferably, the pattern layer 64 is formed from a composition containing one or more selected from the group consisting of acrylic resins and acrylic urethane resins. And even more preferably, the pattern layer 64 is formed from a composition containing an acrylic resin.

[0043] The pattern layer 64 is preferably formed from a resin having a lower adhesive strength than the re-peelable adhesive layer 61. Therefore, the layer formed from the composition containing the acrylic resin is preferably made from an acrylic resin that can form a layer with lower adhesive strength than the resin used in the re-peelable adhesive layer 61, as described later.

[0044] Furthermore, for example, when the pattern layer 64 is covered with the base material layer 62, it is preferable that the adhesive strength between the pattern layer 64 and the support 63 is lower than the adhesive strength between the base material layer 62 and the support 63, and more preferably that the adhesive strength between the pattern layer 64 and the support 63 is lower than the adhesive strength between the base material layer 62 and the support 63, and also lower than the adhesive strength between the pattern layer 64 and the base material layer 62.

[0045] The method for forming the pattern layer 64 is not particularly limited, as long as it is a method that can form the pattern layer 64 on the support 63. The pattern layer 64 can be formed by general printing methods, such as gravure printing, screen printing, offset printing, flexographic printing, etc. Furthermore, the shape of the formed pattern is not particularly limited as long as it is possible to detect whether or not the second label 60 has been peeled off, and it may be a geometric pattern or design, or a character pattern.

[0046] The re-peelable adhesive layer 61 is an adhesive layer that can be cleanly peeled off after label application and can be reapplied and peeled off again. The adhesive of the re-peelable adhesive layer 61 is not particularly limited, but examples include acrylic adhesives, urethane adhesives, polyisobutylene adhesives, olefin adhesives, acrylic urethane adhesives, polyester adhesives, rubber adhesives, silicone adhesives, and vinyl ether adhesives as the main component. These adhesives may be used individually or in combination of two or more. From the viewpoint of further improving the interfacial adhesion between the re-peelable adhesive layer 61 and the substrate layer 62, it is preferable that the re-peelable adhesive layer 61 is formed from an acrylic resin. In addition, the re-peelable adhesive layer 61 may contain various known additives such as tackifiers, fillers, antioxidants, heat stabilizers, ultraviolet absorbers, light stabilizers, colorants, flame retardants, and antistatic agents as needed.

[0047] From the viewpoint of obtaining better pattern formation, the base layer 62 is preferably a layer having an elastic modulus lower than that of the support 63, and more preferably a layer having an elastic modulus higher than that of the re-peelable adhesive layer 61.

[0048] Furthermore, the base layer 62 is preferably formed from an acrylic urethane resin, an olefin resin, a polyamide, or a polyester resin, from the standpoint of transparency, cost, and versatility.

[0049] The method for manufacturing the flap label 3 in this embodiment is not particularly limited. The flap label 3 can be manufactured by manufacturing the first label 50 and the second label 60 by known methods and then stacking them.

[0050] In the food packaging 1 of this embodiment, when attempting to peel off the flap label 3, only the second label 60 is peeled off. Before and after the peeling of the second label 60, the pattern of the pattern layer 64 appears on the second label 60, while the first label 50 remains on the inner lid 5. That is, when attempting to peel off the attached flap label 3 from the inner lid 5, the adhesive force of the permanent adhesive layer 51 is greater than the adhesive force of the re-peelable adhesive layer 61, causing the second label 60 to peel off. At the same time, interfacial delamination occurs between the support 63 and the pattern layer 64, creating a gap 65, which causes the pattern to appear on the second label 60, making it possible to visually detect whether or not the flap label 3 has been peeled off from the inner lid 5.

[0051] Furthermore, the flap label 3 has a first label 50 attached to the inner lid 5, which comprises a permanent adhesive layer 51 and a film substrate 52. If the film substrate 52 is a brittle film substrate, even if one tries to peel off the first label 50 from the inner lid 5 after peeling off the second label 60, the first label 50 will be destroyed, leaving evidence on the inner lid 5 that the first label 50 has been removed. Because the first label 50 is destroyed, it cannot be reattached or reused.

[0052] Furthermore, the flap label 3 may change its color before and after peeling. For example, the peeling of the flap label 3 may result in the first label 50 and the second label 60 exhibiting a unique color different from the color of the flap label 3 that was attached to them.

[0053] As described above, the flap label 3 has excellent tamper-proof and anti-tampering effects. Note that the flap label 3 is not limited to the configurations shown in Figures 4 and 5, and known configurations can be used. For example, the flap label 3 may consist only of the first label 50.

[0054] <Tamper detection label> As shown in Figure 3, in the food packaging 1 of this embodiment, an tamper-evident label 13 is attached to the boundary between the flap label 3 and the inner lid 5 of the food packaging body 2.

[0055] The tamper detection label 13 can be attached to either the flap label 3 or the food packaging body 2, and may be of any shape or size. The tamper detection label 13 can prevent improper opening even before the flap label 3 is opened.

[0056] Furthermore, the tamper detection label 13 is not particularly limited as long as it has a base material and an adhesive layer, and its configuration allows for detection of whether or not it has been peeled off by removing the tamper detection label 13. For example, it may be made of the same material and have the same configuration as the sealing portion of the flap label 3 described above. That is, the tamper detection label 13 is transparent when unopened, and displays a pattern such as letters when opened.

[0057] Thus, not only the flap label 3 but also the tamper-evident label 13 provides excellent protection against tampering and unauthorized opening, further enhancing security.

[0058] <Food packaging box> Next, another embodiment of the present invention (second embodiment) will be described with reference to Figure 6. As shown in Figure 6, the food packaging of the second embodiment is a food packaging box 70.

[0059] As shown in Figure 6, the food packaging box 70 consists of a food packaging body 72 that contains food and a flap label 73. The food packaging body 72 includes a box (container) for containing food and an inner lid 75 attached to the side of the box. The flap label 73 is fixed to the inner lid 75 on the side of the food packaging body 72 in the food packaging box 70.

[0060] (food packaging body) The food packaging body 72 is cylindrical in shape, with a rectangular prism having a cavity in the longitudinal direction and openings formed at both ends. It is formed by sealing one of the openings formed on the side of the box with a side wall (not shown), attaching an inner lid 75 to the other opening, and fixing a flap label 73 to the inner lid 75. However, if the flap label 73 can be directly fixed to the food packaging body 72, the inner lid 75 may be omitted.

[0061] The material constituting the food packaging body 72 of this embodiment can be selected from materials suitable for containing food, such as plastic, paper, glass, or ceramics.

[0062] The inner lid 75 is provided with an opening 76 and a sealing area 78. The inner lid 75 is configured so that food can be removed from the opening 76. One application of the food packaging box 70 is the storage of dried pasta noodles, and the dried pasta noodles can be removed by opening the flap label 73 and tilting the food packaging box 70.

[0063] (Flap label) The flap label 73 of the food packaging box 70 in the second embodiment comprises a lid portion 80 and a sealing portion 81, with the lid portion 80 covering the opening 76 of the food packaging body 72 and the sealing portion 81 being attached to the sealing area 78.

[0064] The flap label 73 of the second embodiment is configured in the same way as the flap label 3 of the first embodiment. Therefore, when unopened, the flap label 73 is transparent, but when the flap label 73 is peeled off from the inner lid 75, a pattern such as letters (shaded area in Figure 6) is displayed on the sealing portion 81. At the same time, a pattern such as letters (shaded area in Figure 6) is also displayed on the sealing area 78 to which the sealing portion 81 of the food packaging body 72 was attached.

[0065] In this way, a pattern that was not displayed when the package was unopened becomes visible when it is opened, making it easy to detect whether or not the package has been opened.

[0066] Furthermore, the sealing portion 81 is configured to be reattachable even after being peeled off. Therefore, in the food packaging box 70, the food packaging box 70 can be sealed by reattaching the flap label 73 after it has been opened, thereby preventing the food contained inside from drying out or protecting it from moisture.

[0067] <Food packaging bags> Next, another embodiment of the present invention (third embodiment) will be described with reference to Figures 7 and 8. As shown in Figure 7, the food packaging of the third embodiment is a food packaging bag 90. Figure 7 shows the food packaging bag 90 in an unopened state, Figure 8(a) shows the unopened state after the tamper detection label 100 has been peeled off and the flap label 93 has been peeled off to expose the opening / closing part 95, and Figure 8(b) shows the state after the opening / closing part 95 has been opened.

[0068] As shown in Figure 8(a), the food packaging bag 90 consists of a food packaging body 92 that contains food inside and a flap label 93. In this embodiment, the flap label 93 is fixed to the food packaging body 92 at a fixing part 94 adjacent to the opening / closing part 95 of the food packaging bag 90. Also, as shown in Figure 7, when unopened, an tamper detection label 100 is attached to the boundary between the flap label 93 and the food packaging body 92.

[0069] (food packaging body) The food packaging body 92 is a bag for containing food, and has an opening 96 of the bag with a sealed opening / closing section 95. The food packaging body 92 is formed, for example, by making a gusseted bag from a thin film laminated with aluminum and sealing the opening / closing section 95 at the top. The form of the food packaging body 92 is not limited to the form shown in Figure 8(a), and can take various forms such as a three-sided bag, a gusseted bag, or a square-bottom bag. Furthermore, it can be packaged in various ways depending on the food contained inside, such as pillow packaging, vacuum packaging, or deep-draw packaging.

[0070] Furthermore, a fixing part 94 is provided on the back of the food packaging body 92, and the flap label 93 is attached to the fixing part 94. With the opening / closing part 95 in place, the flap label 93 is attached to the sealing area 98 so as to cover the opening / closing part 95.

[0071] The material constituting the food packaging body 92 of this embodiment is selected from materials suitable for containing food, and examples include ONy (biaxially oriented nylon), HDPE (high-density polyethylene), LDPE (low-density polyethylene), LLDPE (linear low-density polyethylene), PET (biaxially oriented polyester), OPP (biaxially oriented polypropylene), CPP (unoriented polypropylene), and AL (aluminum foil).

[0072] The food packaging body 92 has an adhesive opening / closing section 95, and an opening 96 is formed by peeling off this opening / closing section 95. Food can then be removed from the opening 96. On the other hand, the food packaging body 92 of this embodiment does not have the inner lids 5 and 75 of the first and second embodiments.

[0073] (Flap label) In this embodiment, a fixing portion 94 is provided adjacent to the opening / closing portion 95 of the food packaging body 92, and the flap label 93 is fixed to the fixing portion 94. The flap label 93 in this embodiment includes a lid portion in its sealing portion 91. That is, the sealing portion 91 also has the function of a lid that covers the opening 96. The opening / closing portion 95, to which the opening 96 of the food packaging body 92 is adhered, is covered with the flap label 93, and the sealing portion 91 of the flap label 93 is attached to the sealing area 98 of the food packaging body 92. The sealing portion 91 of the flap label 93 includes the lid portions 10 and 80 in the first and second embodiments, or in other words, the sealing portion 91 is configured as a portion including a lid that covers the opening / closing portion 95 and the opening 96 formed by peeling off the opening / closing portion 95.

[0074] The flap label 93 of this embodiment is configured in the same way as the flap labels 3 and 73 of the first and second embodiments. Therefore, when unopened, the flap label 93 is transparent (see Figure 7), but when the flap label 93 is peeled off the food packaging body 92, a pattern such as letters (shaded area in Figure 8) is displayed on the sealing portion 91. At the same time, a pattern such as letters (shaded area in Figure 8) is also displayed on the sealing area 98 to which the sealing portion 91 of the food packaging body 92 was attached.

[0075] In this way, a pattern that was not displayed when the package was unopened becomes visible when it is opened, making it easy to detect whether or not the package has been opened.

[0076] Furthermore, the sealing portion 91 is configured to be reattachable even after being peeled off. Therefore, in the food packaging bag 90, the food packaging bag 90 can be sealed by reattaching the flap label 93 even after it has been opened, thereby preventing the food contained inside from drying out or protecting it from moisture.

[0077] (Tamper detection label) A tamper-evident label 100 is attached to the food packaging body 92. The tamper-evident label 100 is attached to the boundary between the flap label 93 and the food packaging body 92, where the flap label 93 is attached.

[0078] The tamper detection label 100 can be attached to either the flap label 93 or the food packaging body 92, and may be of any shape or size. The tamper detection label 100 can prevent improper opening even before the flap label 93 is opened.

[0079] Furthermore, the tamper detection label 100 may be made of the same material and have the same configuration as the sealing portion of the flap label 93 described above. That is, the tamper detection label 100 is transparent when unopened, and when opened, a pattern such as letters (shaded area in Figure 8) is displayed.

[0080] Thus, not only the flap label 93 but also the tamper-evident label 100 provides excellent protection against tampering and unauthorized opening, further enhancing security.

[0081] The food packaging flap label of the present invention has a lid portion that covers an opening that reveals the inside of the food packaging body, and a re-adhesive sealing portion that is attached along the periphery of the opening of the food packaging body. Therefore, it can prevent food from drying out or protect it from moisture, thereby enhancing food safety. Furthermore, when opening the food packaging, when the sealing portion is peeled off from the food packaging body, a pattern or color such as letters, marks, or designs is displayed on both the sealing portion and the sealing area of ​​the food packaging body, making it easy to detect whether the package is unopened or opened. In this way, food safety can be further enhanced.

[0082] Furthermore, in the food packaging flap label of the present invention, an tamper-evident label is further attached to the boundary between the sealing portion of the flap label and the food packaging body, thereby preventing improper opening even when the flap label is unopened. Since this tamper-evident label has the same material and structure as the flap label described above, when the tamper-evident label is peeled off, a pattern or color such as letters, marks, or designs is displayed, making it easy to detect that the package has been opened.

[0083] The sealing portion of the flap label comprises a first label and a second label placed on top of the first label. The first label includes a permanent adhesive layer and a film substrate in that order from the adhesive surface upwards. The second label includes a re-peelable adhesive layer, a substrate layer, and a support in that order on top of the film substrate, with a pattern layer formed on a portion of the surface of the support on the substrate layer side. With this configuration, when the flap label is peeled off, interfacial peeling occurs between the support and the pattern layer, so the pattern is easily revealed. Furthermore, because the adhesive strength of the permanent adhesive layer is greater than that of the re-peelable adhesive layer, only the second label peels off and the first label remains on the adhesive surface. Therefore, an indication that the label has been opened is left not only on the side of the flap label but also in the peeled area.

[0084] The food packaging flap label of the present invention can be used for various food packaging materials. In the above embodiments, food packaging trays, food packaging boxes, and food packaging bags are given as examples, but the invention is not limited to these, and can be used as a label to cover the opening of a food packaging material that contains food, and can be used for food packaging materials of any form and material.

[0085] Although the present invention has been described above based on the above embodiments, the present invention is not limited to the contents of the above embodiments, and can naturally be modified as appropriate without departing from the present invention. In other words, all other embodiments, examples, and operational techniques made by those skilled in the art based on these embodiments are of course included in the scope of the present invention. [Explanation of symbols]

[0086] 1 Food packaging 2, 72, 92 Food packaging body 3, 73, 93 flap labels 4 Trays (containers) 5.75 Inner lid 6, 76, 96 openings 8, 78, 98 sealing area 10, 80 Lid 11, 81, 91 Sealing part 13,100 Tamper-evident labels 50 Label 1 51 Permanent adhesive layer 52 Film substrate 60 Label 2 61 Removable adhesive layer 62 Base material layer 63 Support 64 pattern layers 70 food packaging boxes 90 food packaging bags 95 Opening / Closing Section

Claims

1. A lid portion fixed to the surface of the food packaging body that contains food inside, and covering the opening that opens the inside of the food packaging body, It has a reattachable sealing portion that extends from the lid and is attached along the periphery of the opening of the food packaging body, A food packaging flap label characterized in that when the sealing portion is peeled off from the food packaging body upon opening, a pattern or coloring such as letters, marks, designs, etc., is displayed on the sealing portion and the sealing area of ​​the food packaging body to which the sealing portion is attached.

2. The food packaging flap label according to claim 1, further comprising an tamper-evident label affixed to the boundary between the sealing portion and the food packaging body.

3. The sealing portion comprises a first label and a second label provided on the first label. The first label comprises, in this order, a permanent adhesive layer and a film substrate, from the surface of the food packaging body to which it is attached. The second label is a food packaging flap label according to claim 1, characterized in that it includes, in this order, a removable adhesive layer, a base layer, and a support on a film substrate, and a pattern layer is formed on a part of the surface of the support on the base layer side.

4. The food packaging flap label according to claim 3, characterized in that the adhesive strength of the permanent adhesive layer is greater than the adhesive strength of the re-peelable adhesive layer.

5. The food packaging flap label according to claim 2, wherein the tamper detection label is made of the same material and has the same configuration as the food packaging flap label.

6. A food packaging flap label as described in claims 1 to 5, The food packaging body includes a container for holding food and an inner lid having an opening and fixed to the top or side of the container. The lid portion is fixed to the inner lid, characterized in that it is a food packaging body.

7. The food packaging body according to claim 6, wherein the container is made of plastic, paper, glass, or ceramic.

8. A food packaging flap label as described in claims 1 to 5, The food packaging body has a bag for containing food and an opening / closing part to which the opening of the bag is sealed. The sealing portion includes the lid portion and is attached to the opening / closing portion, characterized in that it is a food packaging body.

9. The food packaging according to claim 8, characterized in that the opening is formed by peeling off the opening / closing part that was bonded after the sealing part was opened.

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