Sheet packaging body and label for packaging body

Abstract

In a sheet package in which a take-out opening is opened by partially peeling off a label, the defect that the take-out opening cannot be formed is suppressed. The sheet packaging body (2) is provided with a bag body (20) and a label (100) attached to the bag body. The label has a first resin layer (104), a silicon layer (105), a first adhesive layer (106), a second resin layer (107), and a cut portion (110) forming a label opening (125). The cut portion is formed in the second resin layer instead of the first resin layer. A label opening (125) is formed by separating a part of the second resin layer via the cutting portion. The label has a first region (R1) extending from the upstream edge of the cut portion toward the downstream side and a second region (R2) extending from the downstream edge of the cut portion toward the downstream side. The silicon layer and the first adhesive layer are disposed in the first region and the second region. The weight per unit area of the silicon in the first region is lower than the weight per unit area of the silicon in the second region.

Description

Technical Field

[0001] This invention relates to sheet packaging bodies containing assemblies of sheets such as wet wipes, and labels for packaging bodies. Background Technology

[0002] Patent Document 1 discloses a sheet packaging body containing an assembly of sheets such as wet wipes. The sheet packaging body comprises: an assembly of multiple sheets; a film bag that packages the assembly and has an opening serving as a dispensing outlet; and a label that covers the bag opening and is peelably attached to the surface of the film bag. The bag opening is opened by partially peeling the label from the film bag, and a first adhesive layer, as part of the label, is exposed on the surface of the film bag and around the bag opening.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent No. 5160195 Summary of the Invention

[0006] The sheet packaging has a first adhesive layer exposed around the bag opening when the label is partially peeled off, and a second adhesive layer that adheres the unpeeled portion of the label to the film bag. It is configured such that, during normal use, the first adhesive layer is peeled off and exposed, and even upon peeling, the second adhesive layer remains adhered to the film bag, thereby separating a portion of the label. However, in the operating environment of the sheet packaging, such as in low-temperature environments (e.g., below freezing), the adhesive strength of the first and second adhesive layers varies, sometimes making it impossible to peel off the first adhesive layer without peeling off the second adhesive layer. Therefore, sometimes the label cannot be partially peeled off in the desired manner, and an exit port cannot be formed.

[0007] The present invention was made in view of the above-mentioned problems, and its object is to suppress the undesirable situation of not being able to form an outlet in a sheet packaging body by blocking the outlet before use and partially peeling off the label during use to open the outlet.

[0008] A sheet packaging body comprises: an assembly of multiple sheets; a bag body that packages the assembly and has an opening forming a dispensing outlet for the sheet; and a label that covers the bag opening and is peelably attached to the surface of the bag body. The label comprises: a first resin layer; a silicone layer that abuts against the bag-side surface of the first resin layer and has silicone content; a first adhesive layer that abuts against the bag-side surface of the silicone layer and has a first adhesive; a second resin layer that abuts against the bag-side surface of the first adhesive layer; and a cut portion that forms the label opening forming the dispensing outlet for the sheet. The cut portion is formed on the second resin layer, not the first resin layer. The label is configured such that by pulling the first resin layer from an upstream side to a downstream side in an opening direction, a portion of the second resin layer is separated via the cut portion, and the separated portion of the second resin layer is peeled off together with the first resin layer to form the label opening. The label has a first region extending downstream from the upstream edge of the cut portion in the opening direction and a second region extending downstream from the downstream edge of the cut portion in the opening direction. The silicon layer and the first adhesive layer are disposed in the first region and the second region. The weight per unit area of ​​the silicon in the first region is lower than that of the silicon in the second region.

[0009] A packaging label is peelably affixed to the surface of a bag containing an assembly of multiple sheets, and can be opened and closed freely to cover the bag opening. The label comprises: a first resin layer; a silicone layer abutting against the bag-side surface of the first resin layer and having silicone content; a first adhesive layer abutting against the bag-side surface of the silicone layer and having a first adhesive content; a second resin layer abutting against the bag-side surface of the first adhesive layer; and a cut portion forming a label opening constituting a dispensing port for the sheet. The cut portion is formed on the second resin layer, not the first resin layer. The packaging label is configured such that by pulling the first resin layer from an upstream side to a downstream side in the opening direction, a portion of the second resin layer is separated via the cut portion, and the separated portion of the second resin layer is peeled off together with the first resin layer to form the label opening. The label has a first region extending downstream from the upstream edge of the cut portion in the opening direction and a second region extending downstream from the downstream edge of the cut portion in the opening direction. The silicon layer and the first adhesive layer are disposed in the first region and the second region. The weight per unit area of ​​the silicon in the first region is lower than that of the silicon in the second region. Attached Figure Description

[0010] Figure 1 It is a three-dimensional view of a sheet structure including the sheet packaging body and the outer casing.

[0011] Figure 2 This is a top view of the sheet packaging. Figure 2 (A) shows a state where the label has not been separated and no outlet has been formed. Figure 2 (B) shows the state where the label is separated, forming an outlet.

[0012] Figure 3 It is along Figure 2 (A) is a schematic cross-sectional view of line AA.

[0013] Figure 4 It is along Figure 2 (B) is a schematic cross-sectional view of the BB line.

[0014] Figure 5 yes Figure 2 (B) is a magnified view of part C.

[0015] Figure 6 yes Figure 5 An enlarged schematic diagram of part D is shown. Detailed Implementation

[0016] (1) Overview of the implementation method

[0017] Based on the description in this specification and the accompanying drawings, at least the following will become clear.

[0018] The technical solution of form 1 is a sheet packaging body. The sheet packaging body has: an assembly of multiple sheets; a bag body that packages the assembly and forms a bag opening constituting a dispensing outlet for the sheet; and a label that covers the bag opening and is peelably attached to the surface of the bag body. The label has: a first resin layer; a silicone layer that abuts against the bag body side of the first resin layer and has silicone; a first adhesive layer that abuts against the bag body side of the silicone layer and has a first adhesive; a second resin layer that abuts against the bag body side of the first adhesive layer; and a cutting portion that forms the label opening constituting the dispensing outlet for the sheet. The cutting portion is not formed on the first resin layer but on the second resin layer. The label is configured such that by pulling the first resin layer from an upstream side to a downstream side in the opening direction, a portion of the second resin layer is separated via the cutting portion, and the separated portion of the second resin layer is peeled off together with the first resin layer to form the label opening. The label has a first region extending downstream from the upstream edge of the cut portion in the opening direction and a second region extending downstream from the downstream edge of the cut portion in the opening direction. A silicon layer and a first adhesive layer are disposed in the first region and the second region. The weight per unit area of ​​the silicon in the first region is lower than that of the silicon in the second region. According to this embodiment, the lower weight per unit area of ​​the silicon in the first region makes it more difficult to peel off relative to the first adhesive. Therefore, peeling of the first adhesive layer from the silicon layer in the first region can be suppressed during label separation, and the second resin layer separated by the cut portion can be peeled off together with the first resin layer to form a label opening and an outlet. Furthermore, since the weight per unit area of ​​the silicon layer is higher in the second region, the first adhesive layer can be separated from the silicon layer. Therefore, when separating the label, the silicon layer can be peeled off from the first adhesive layer in the second region, and the silicon layer can be peeled off together with the first resin layer to expose the first adhesive layer. By exposing the first adhesive layer around the label opening after it is formed, the sheet packaging body after the label opening is formed can be adhered to the outer packaging body via the first adhesive layer, thus hygienically maintaining the sheet.

[0019] According to the preferred embodiment, based on the technical solution of embodiment 1, the technical solution of embodiment 2 can have the following features. The label has a third region extending from the upstream edge of the label in the opening direction to the downstream side. The first adhesive layer is not provided in the third region, but the silicon layer is provided. In the third region, the second resin layer and the silicon layer can be peelably overlapped. Since the first adhesive layer is not provided in the third region extending from the upstream edge of the label in the opening direction, and the second resin layer and the silicon layer can be peelably overlapped, the label can be separated from the portion of the silicon layer that holds the first resin layer side. In addition, when the label is peeled off to the downstream side in the opening direction via the silicon layer, a first region where the silicon layer and the first adhesive layer abut is reached. At this time, since the weight per unit area of ​​silicon in the first region is low, peeling will not continue in the first region via the silicon layer, but the adhesive state relative to the first adhesive layer side will be maintained via the silicon layer, and the second resin layer separated by the cut portion can be separated from the first resin layer together to form a label opening in the desired shape.

[0020] According to a preferred embodiment, based on the technical solutions of embodiment 1 or 2, the technical solution of embodiment 3 may have the following features. The label has a fourth region extending upstream from the upstream edge of the cut portion in the opening direction toward the third region. The silicon layer is disposed in the fourth region. The weight per unit area of ​​the silicon in the fourth region is higher than the weight per unit area of ​​the silicon in the first region. According to this embodiment, since the weight per unit area of ​​the silicon in the fourth region is higher than that of the silicon in the first region, the first resin layer and the first adhesive layer can be peeled off via the silicon layer. Furthermore, since the first adhesive layer is not disposed in the third region, which is located upstream of the fourth region, the first resin layer can be peeled off relative to the second resin layer in the region from the upstream edge of the label in the opening direction to the upstream edge of the cut portion (the region where the third region and the fourth region are joined). Additionally, since the weight per unit area of ​​the silicon in the first region is lower, the first resin layer and the first adhesive layer are not peeled off via the silicon layer in the region from the upstream edge of the cut portion toward the downstream side (the first region), and the bonding state between the first resin layer and the second resin layer can be maintained via the first adhesive layer. Therefore, the second resin layer, after being partially separated by cutting, can be separated together with the first resin layer to form a label opening in the desired shape.

[0021] According to the preferred embodiment, based on any of the technical solutions in embodiments 1 to 3, the technical solution of embodiment 4 can have the following features: The first adhesive layer is disposed in the fourth region. According to this embodiment, when the label is separated, the silicon layer can be peeled off from the first adhesive layer in the fourth region, exposing the first adhesive layer. The first adhesive layer can be disposed around the label opening, and the sheet packaging can be bonded to the outer casing, etc., via the first adhesive layer. Therefore, excessive evaporation of liquid through the label opening can be suppressed, or the space around the label opening can be reduced to hygienically maintain the sheet.

[0022] According to the preferred embodiment, based on any of the technical solutions in embodiments 1 to 4, the technical solution of embodiment 5 can have the following characteristics. The silicon layer is disposed in multiple rectangular regions in the first region when viewed from above. According to this embodiment, by distributing the silicon layer in multiple rectangular regions, compared to distributing the silicon layer in multiple circular regions, it is easier to maintain a constant spacing between the regions, thus suppressing silicon unevenness. Therefore, by adjusting the weight per unit area according to the silicon area ratio, etc., the silicon-based peel strength can be easily adjusted in the desired shape.

[0023] According to the preferred embodiment, based on any of the technical solutions in embodiments 1 to 5, the technical solution of embodiment 6 can have the following characteristics: The area ratio of silicon in the silicon layer in the first region is 40% or less. The area ratio of silicon in the silicon layer in the second region is 50% or more. According to this embodiment, it is possible to suppress the peeling of the first adhesive layer from the silicon layer in the first region to appropriately obtain the effect of forming a label opening and an outlet, and it is possible to peel the silicon layer from the first adhesive layer in the second region to appropriately obtain the effect of peeling the silicon layer and the first resin layer together and exposing the first adhesive layer.

[0024] According to a preferred embodiment, based on any of the technical solutions in embodiments 1 to 6, the technical solution of embodiment 7 may have the following features. The label has a fifth region located downstream of the first region in the opening direction and upstream of the second region in the opening direction, the fifth region being disposed around the cut portion. The silicon layer is disposed in the fifth region. The weight per unit area of ​​the silicon in the fifth region is higher than that of the silicon in the first region. When the label is partially separated, in the region upstream of the cut portion in the opening direction (e.g., the first region), the user can easily apply appropriate force along the opening direction and peel it off in the desired shape. However, in the fifth region, which is one of the regions downstream of the cut portion in the opening direction, the user sometimes finds it difficult to apply appropriate force along the opening direction and peel it off in the desired shape. According to this embodiment, the weight per unit area of ​​silicon is greater in the first region than in the fifth region, and increases from the upstream side to the downstream side in the opening direction. Therefore, in the downstream side of the cut portion in the opening direction, a label opening can also be formed by peeling off via the silicon layer in the desired shape.

[0025] According to a preferred embodiment, based on any of the technical solutions in embodiments 1 to 7, the technical solution of embodiment 8 may have the following features. The label has a second adhesive layer and a second silicone layer. The second adhesive layer abuts against the bag-side surface of the second resin layer and has a second adhesive. The second silicone layer abuts against the bag-side surface of the second adhesive layer and has silicone. The label has a third region extending downstream from the upstream edge of the label in the opening direction. The second adhesive layer is disposed across the first region and the third region. The second silicone layer is not disposed in the third region but in the first region. According to this embodiment, in the third region, the second silicone layer is not disposed on the inner surface side of the second adhesive layer. The second adhesive layer is bonded to the bag, and the label can be joined to the bag via the second adhesive layer. Therefore, the label opening can be maintained by partially separating the label via the cutting portion and continuing to adhere the label outside the separated portion to the bag.

[0026] Furthermore, in the first region, since a second silicone layer is provided between the second adhesive layer and the bag body, the label can be easily peeled off from the bag body in the first region when the label is partially separated via the cutting portion. By smoothly peeling the label off from the bag body in the first region, which is the upstream edge in the opening direction, the cutting portion can be smoothly broken to form a label opening.

[0027] According to a preferred embodiment, based on any of the technical solutions in embodiments 1 to 8, the technical solution of embodiment 9 may have the following features. The label has a second adhesive layer, which abuts against the bag-side surface of the second resin layer and has a second adhesive. The adhesive strength of the first adhesive may be higher than that of the second adhesive. According to this embodiment, because the adhesive strength of the first adhesive is higher, the sheet packaging body after the label opening is formed by the first adhesive layer exposed after the label is partially separated can be bonded to the outer packaging body using the first adhesive layer exposed after the label is partially separated, thus hygienically maintaining the sheet. On the other hand, because the adhesive strength of the second adhesive is lower, the separated portion can be easily peeled off from the bag when the label is partially separated. Furthermore, after the label is partially separated, the second adhesive is exposed on the bag-side surface of the separated portion. The second adhesive disposed on the separated portion separates from the bag containing the sheet and is not used to bond the sheet packaging body after the label opening is formed to the outer packaging body as the first adhesive does. Therefore, even though the adhesive strength of the second adhesive is lower, the impact on hygienic sheet retention is smaller.

[0028] The technical solution of form 10 is a label for packaging. The label for packaging is peelably attached to the surface of a bag containing an assembly of multiple sheets, and can be opened and closed freely to cover the bag opening. The label has: a first resin layer; a silicone layer abutting against the bag-side surface of the first resin layer and having silicone content; a first adhesive layer abutting against the bag-side surface of the silicone layer and having a first adhesive content; a second resin layer abutting against the bag-side surface of the first adhesive layer; and a cutting portion forming a label opening constituting a dispensing port of the sheet. The cutting portion is not formed in the first resin layer but in the second resin layer. The label for packaging is configured such that by pulling the first resin layer from an upstream side to a downstream side in the opening direction, a portion of the second resin layer is separated via the cutting portion, and the separated portion of the second resin layer is peeled off together with the first resin layer to form the label opening. The label has a first region extending downstream from the upstream edge of the cut portion in the opening direction and a second region extending downstream from the downstream edge of the cut portion in the opening direction. A silicon layer and a first adhesive layer are disposed in the first region and the second region. The weight per unit area of ​​the silicon in the first region is lower than that of the silicon in the second region. According to this embodiment, the lower weight per unit area of ​​the silicon in the first region makes it more difficult to peel off relative to the first adhesive. Therefore, peeling of the first adhesive layer from the silicon layer in the first region can be suppressed during label separation, and the second resin layer separated by the cut portion can be peeled off together with the first resin layer to form an opening for the sheet. Furthermore, since the weight per unit area of ​​the silicon layer is higher in the second region, the first adhesive layer can be separated from the silicon layer. Therefore, when separating the label, the silicon layer can be peeled off from the first adhesive layer in the second region, and the silicon layer can be peeled off together with the first resin layer to expose the first adhesive layer. By exposing the first adhesive layer around the label opening, the bag body after the label opening is formed can be adhered to the outer packaging or the like via this first adhesive layer, hygienically maintaining the sheet.

[0029] (2) Overall structure of sheet packaging

[0030] Hereinafter, the sheet packaging body 2 of the embodiment will be described with reference to the accompanying drawings. Furthermore, in the following description of the drawings, the same or similar parts will be labeled with the same or similar reference numerals. However, it should be noted that the drawings are schematic, and the proportions of the dimensions may differ from the actual figures. Therefore, specific dimensions should be determined by referring to the following description. Additionally, the drawings may include parts with different dimensional relationships or proportions. Furthermore, while the sectional views show areas where structural components would contact each other in the actual product, for ease of explanation, the structural components are shown separately.

[0031] In this embodiment, the sheet packaging body 2 houses an assembly 4 of multiple sheets 41 and is installed inside an outer packaging body 3 for use. The outer packaging body 3 encloses the sheet packaging body 2 and has an outer packaging opening 32 that overlaps with the outlet 5 of the sheet 41 in the sheet packaging body 2. The sheet 41 is removed through the outer packaging opening 32 and the outlet 5. Figure 1 This is an exploded perspective view of the sheet structure 1, including the sheet packaging body 2 and the outer casing 3, showing the state in which the sheet packaging body 2 is not housed in the outer casing 3. Alternatively, the sheet packaging body 2 may be used as a standalone unit, not housed in the outer casing 3.

[0032] The sheet structure 1 has a sheet packaging body 2 and an outer packaging body 3. The sheet structure 1 has an upper surface 11, a bottom surface 12 facing the upper surface 11, a left side surface 15 covering the side of the assembly 4, a right side surface 16, a front surface 13, and a back surface 14. The upper surface 11 is the side on which the bag opening 22 of the sheet packaging body 2 is disposed, and the side on which the outer packaging opening 32 of the outer packaging body 3 is disposed. The sheet structure 1 has a third direction D3 as the height direction and a first direction D1 and a second direction D2 extending along the planar direction and orthogonal to each other.

[0033] The sheet packaging body 2 includes at least an assembly 4, a bag 20, and a label (label for packaging) 100. The assembly 4 comprises a plurality of sheets 41. The assembly 4 may be formed by stacking a plurality of separate sheets 41, or it may be formed by folding a plurality of sheets 41 and stacking the sheets 41 along the thickness direction. The sheets 41 may be folded at least with a crease FL along the first direction D1 as a base point. In the folded state, adjacent sheets 41 along the third direction D3 may be arranged alternately. The assembly 4 may also be folded before or after the crease FL using creases other than the crease FL. That is, the sheets 41 may be folded with a crease along the second direction D2 as a base point, and then folded with a crease along the first direction D1 as a base point. The crease FL along the first direction D1 of the present invention is a crease that serves as a base point when the sheets 41 are unfolded from the assembly 4.

[0034] In the folded form of sheet 41, the first direction D1 can be along the crease FL of the assembly 4. The first direction D1 can be the long side direction of the sheet structure 1 as in this embodiment, or in a modified example, the short side direction of the sheet structure 1. In addition, in a modified example, the assembly 4 can be an assembly of multiple sheets 41 continuously formed through weak points, or it can be an assembly of multiple sheets 41 continuously wound into a roll shape.

[0035] The sheet 41 can be a dry sheet (e.g., non-woven fabric, paper towel) or a wet sheet (e.g., wet wipe). In this embodiment, the sheet 41 is a wet wipe impregnated with a liquid (medicine, etc.) containing alcohol. The wet wipe allows the liquid to permeate the sheet 41; for example, 150 to 300 parts by weight of liquid can permeate 100 parts by weight of the assembly (dry state).

[0036] The bag body 20 packages the assembly 4 and forms a bag opening 22 with an outlet 5 constituting the sheet 41. The bag opening 22 is formed by the cut portion 26 (see reference). Figure 3 The cut portion 26 is composed of a perforated line or other weak portion or cut line, and is formed as a sheet body that extends throughout the bag body on the upper surface side compared to the sheet body. The cut portion 110 forms the outer edge of the bag opening 22. The bag body 20, formed as the bag body 20, is configured to enclose the entire assembly 4. The bag body 20 may be made of a film. The material of the film is not particularly limited, for example, it may be a material in which polyethylene is mixed into polypropylene. The bag opening 22 may be disposed on the upper surface 11 side. In the form in which the sheet packaging body 2 is housed in the outer packaging body 3 and used, when the sheet packaging body 2 is mounted on the outer packaging body 3, the outer packaging opening 32 is configured to overlap at least a portion of the bag opening 22.

[0037] The size of the bag opening 22 only needs to be large enough to allow each sheet 41 to be pulled out. The shape of the bag opening 22, when viewed from above, can be elliptical, horizontally elongated (vertically elongated) circular, or perfectly circular; its shape is not limited. Preferably, to prevent the sheets 41 from snagging, it can also be curved and without sharp corners. The bag opening 22 can be positioned at the center of both the first direction D1 and the second direction D2 of the sheet packaging body 2.

[0038] The label 100 can be peeled off and attached to the surface of the bag body 20, covering the bag opening 22 before use. When using the sheet 41, such as when the sheet packaging body 2 is installed on the outer packaging body 3, the user partially separates the label 100 and exposes the bag opening 22, so that the bag opening 22 overlaps with the outer packaging opening 32. Figure 2 (A) indicates that label 100 has not been separated. Figure 2 (B) shows the state where a portion of the label 100 is separated, exposing the bag opening 22. The structure of the label 100 will be described in detail later.

[0039] The outer casing 3 has an outer casing opening 32 that serves as an outlet for the sheet 41. The outer casing opening 32 is configured to overlap at least a portion of the outlet 5 of the sheet packaging. The outer casing opening 32 may be configured to overlap a portion of the outlet 5 or to overlap the entire area of ​​the outlet 5. The outer casing 3 may have a base portion 37 disposed around the outer casing opening 32. The base portion 37 is configured to surround the outer casing opening 32. The base portion 37 may also have a separation guide portion 34. The separation guide portion 34 is configured to protrude inward from the outer edge of the outer casing opening 32 and guide the separation of the sheets 41 from each other. More specifically, the separation guide portion 34 protrudes inward from the center of the outer casing opening 32 in one of the first directions D1 and the second direction D2, guiding the separation of the sheets 41 from each other. In this embodiment, the separation guide 34 may be a portion that protrudes inward toward the second direction D2 compared to the outer edge of the outer opening 32 in the second direction D2. Furthermore, in a modified example, the separation guide 34 may also be a portion that protrudes inward toward the first direction D1 compared to the outer edge of the outer opening 32 in the first direction D1. The user pulls the sheet 41 to the outside of the sheet structure 1 via the bag opening 22 and the outer opening 32. At this time, the separation guide 34 functions such that, when the sheet 41 is touched and it appears as if the sheet to be removed is to be pulled out together with the next sheet 41 (located on the bottom side), only the sheet to be removed is pulled out.

[0040] The outer casing 3 may have an outer cover 36, which can be opened and closed freely to cover the outer opening 32 and the base 37. The outer cover 36 can be in a state of covering the outer opening 32 or in a state of exposing the outer opening 32, with the hinge 38 as the opening and closing base point. When the user removes the sheet 41, the user opens the outer cover 36 with the hinge 38 as the base point, and when the user does not remove the sheet 41, the user closes the outer cover 36 and covers the outer opening 32. The outer casing 3 has an outer opening 32, a base 37, an outer cover 36, and a hinge 38. It can be a structure that is only installed on the upper surface of the sheet packaging 2 (a so-called wet wipe cover), or it can have a surrounding part 39 that completely surrounds the sheet packaging 2. In this embodiment, the outer casing 3 has a surrounding part 39. The enclosure 39 has: an upper surface region extending outward from the outer opening 32 and the base portion 37 on the upper surface 11; a bottom surface region disposed on the bottom surface 12; and side surface regions disposed on the left side surface 15, the right side surface 16, the front surface 13, and the back surface 14. The bottom surface region or the upper surface region is configured to be detachable or openable relative to the side surface regions, and is configured to allow the sheet package 2 to be removed / placed relative to the outer casing 3.

[0041] Next, the label 100 of the sheet packaging body 2 will be described in detail. Figure 3 It is along Figure 2 (A) is a schematic cross-sectional view of line AA. Figure 4 It is along Figure 2 (B) is a schematic cross-sectional view of the BB line. Figure 5 yes Figure 2 (B) Partial enlarged view of section C. The label 100 has an inner surface side T101 and an outer surface side T102 opposite to the inner surface side T101. The outer surface side T102 is the outer surface side of the sheet packaging body 2, and the inner surface side T101 is the bag body 20 side. The label 100 is configured to have multiple layers. In this embodiment, the label 100 has, sequentially stacked from the outer surface side T102 toward the inner surface side T101, an outer layer 101, an outer adhesive layer 102, a printing layer 103, a first resin layer 104, a first silicone layer 105, a first adhesive layer 106, a second resin layer 107, a second adhesive layer 108, and a second silicone layer 109. Furthermore, the label 100 of the present invention only needs to have at least a first resin layer 104, a first silicone layer 105, a first adhesive layer 106, and a second resin layer 107. The first silicone layer 105 constitutes the "silicon layer" of the present invention.

[0042] The outer layer 101 is the outermost layer, constituting the outer surface of the label 100. The outer layer 101 is transparent or translucent and may be made of a laminate resin that protects the printed layer 103. An outer adhesive layer 102 bonds the outer layer 101 to the printed layer 103. The printed layer 103 is a layer with printed decorations or information. The outer layer 101, the outer adhesive layer 102, and the printed layer 103 can be disposed over the entire area of ​​the label 100 when viewed from above.

[0043] The first resin layer 104 is located at a position T101 on the inner surface side of the printed layer 103, and at a position T102 on the outer surface side of the first silicone layer 105, the first adhesive layer 106, and the second resin layer 107. The first resin layer 104 is configured such that it does not break when the label 100 is properly separated, allowing the entire label to be peeled off from the bag body 20. The first resin layer 104 can be disposed over the entire area of ​​the label 100 when viewed from above. The first resin layer 104 can be made of resin; in this embodiment, the first resin layer 104 is made of foamed PET (extrusion-foamed polyester resin). The thickness of the first resin layer 104 can be 30 μm to 70 μm; in this embodiment, the thickness of the first resin layer is 50 μm.

[0044] The first silicon layer 105 abuts against the inner surface T101 of the first resin layer 104 and has silicon. The first silicon layer 105 can be formed by coating silicon onto the inner surface of the first resin layer 104. The first silicon layer 105 only needs to contain silicon (Si) and can be made of silicone resin. The first silicon layer 105 is configured to be easy to peel off relative to an adhesive layer with an adhesive. In areas of the first silicon layer 105 with a higher weight per unit area of ​​silicon, peeling is easier relative to the adhesive layer; in areas of the first silicon layer 105 with a lower weight per unit area of ​​silicon, peeling is more difficult relative to the adhesive layer compared to the areas with a higher weight per unit area. The first silicon layer 105 abuts against the first adhesive layer 106, and the ease of peeling relative to the first adhesive layer 106 is adjusted by the weight per unit area of ​​silicon. The first silicon layer 105 can be disposed at least around the cut portion 110 forming the label opening 125. Figure 2 In (B), the area where the first silicon layer 105 is disposed is shown by a slash.

[0045] The first adhesive layer 106 abuts against the inner surface T101 of the first silicon layer 105 and has a first adhesive. The first adhesive can be, for example, a hot-melt adhesive. The first adhesive is at least provided in the area overlapping the label opening 125. In the area overlapping the label opening 125, there is a region where the first adhesive layer 106 abuts against the first resin layer 104 in a manner where the first silicon layer 105 is not disposed. The region where the first adhesive layer 106 abuts against the first resin layer 104 in a manner where the first silicon layer 105 is not disposed is formed by... Figure 2 (B) The area marked with a diagonal line (the area where the first silicon layer 105 is disposed) is surrounded by the area. The area where the first adhesive layer 106 abuts against the first resin layer 104 is located in the area surrounded by the cut portion 110.

[0046] The second resin layer 107 abuts against the inner surface T101 of the first adhesive layer 106. A cut-off portion 110 is formed in the second resin layer 107, creating a label opening 125. The second resin layer 107 can be disposed over the entire area of ​​the label 100 when viewed from above. The second resin layer 107 can be made of resin; in this embodiment, the second resin layer 107 is made of PET (polyethylene terephthalate). The thickness of the second resin layer 107 can be 30 μm to 70 μm; in this embodiment, the thickness of the second resin layer 107 is 50 μm.

[0047] The second adhesive layer 108 abuts against the inner surface T101 of the second resin layer 107 and has a second adhesive. The second adhesive can be a hot-melt adhesive. The second adhesive layer 108 bonds the label 100 to the bag body 20. A cut portion 110 is formed in the second adhesive layer 108, forming a label opening 125. The second adhesive layer 108 can be disposed over the entire area of ​​the label 100 in a top view. The bag-side T101 surface of the second adhesive layer 108 abuts against and bonds to the bag body 20. Since the second adhesive layer 108 is bonded to the portion (bag separation portion) surrounded by the cut portion 26 forming the bag opening 22, it separates together with the bag separation portion when the label 100 is separated, forming the bag opening 22. Furthermore, while the label 100 of this embodiment has a second adhesive layer 108, in a modified embodiment, an adhesive layer equivalent to the second adhesive layer 108 may be provided on the bag body 20, and the label 100 may not have the second adhesive layer 108.

[0048] The second silicon layer 109 abuts against the inner surface side T101 of the second adhesive layer 108 and has silicon. The second silicon layer 109 only needs to have silicon (Si) and can be made of silicone resin. The second silicon layer 109 crosses the upstream edge 111 of the cut portion 110 in the opening direction P, and can cross the area surrounded by the cut portion 110 and the area outside the surrounded area.

[0049] The label 100 is configured to be partially detachable. By detaching a portion of the label 100, a label opening 125 constituting the dispensing outlet 5 is formed. Figure 2 (A) and Figure 3 As shown, the label 100 is affixed to the surface of the bag body 20 in a state where it is not separated (in a state where the outlet 5 is not formed). A label opening 125 is formed by peeling the multiple layers of the label 100 and separating a portion of the layers. The label opening 125 is the portion surrounded by a cut portion 110. The cut portion 110 is composed of a perforated line or other fragile portion or a cutting line, and is formed over multiple layers in a certain range in the thickness direction. The cut portion 110 forms the outer edge of the label opening 125.

[0050] The cutting portion 110 is not formed over the entire thickness direction of the label 100. The cutting portion 110 is not formed on the first resin layer 104 but on the second resin layer 107. More specifically, the cutting portion 110 is not formed on the first resin layer 104, and is not formed on a layer further outward (T102) than the first resin layer 104. In this embodiment, the cutting portion 110 is formed only at a position further inward (T101) than the boundary between the first resin layer 104 and the first adhesive layer 106. The region further inward than the boundary, including the second resin layer 107, is separated by the cutting portion 110, but the region further outward than the boundary, including the first resin layer 104, is not separated by the cutting portion 110. The portion of the second resin layer 107, including the first resin layer 104, located on the outer surface T102 of the boundary, is configured such that a portion of the second resin layer 107 is separated via the cutting portion 110 by pulling it from the upstream side P1 to the downstream side P2 in the opening direction P. The separated portion of the second resin layer 107 is peeled off together with the first resin layer 104 to form a label opening 125. The separated portion of the second resin layer 107 is the portion surrounded by the cutting portion 110.

[0051] like Figure 4 As shown, the configuration is such that when the label opening 125 is formed, a portion of the bag body 20 (designated as the bag separation portion) and a separate portion of the label 100 (designated as the label separation portion) separate from the bag body 20 together. With the label separation portion and the bag separation portion separated together, the bag opening 22 is formed in the bag body 20 by the separation of the bag separation portion, and the label opening 125 is formed in the label 100 by the separation of the label separation portion. Figure 4 As shown, the outlet 5 is formed by the area where the label opening 125 overlaps with the bag opening 22. In this embodiment, the label opening 125 is formed to be slightly larger than the bag opening 22 when viewed from above. The entire area of ​​the bag opening 22 is covered by the label opening 125.

[0052] Figure 3Line L100 in the diagram shows the dividing line used when forming the dispensing port 5. The label 100 is separated by pulling from the upstream side P1 towards the downstream side P2 in the opening direction P. The label 100 has an upstream edge 121 as the end edge of the upstream side P1 and a downstream edge 122 as the end edge of the downstream side P2. The dividing line L100 is formed between the first resin layer 104 and the first adhesive layer 106 in the region from the upstream edge 121 towards the downstream side P2 to the upstream edge 111 in the opening direction P of the cut portion 110. The dividing line L100 extends from the upstream edge 111 of the cut portion 110 towards the inner surface side T101 and reaches the surface of the inner surface side T101 of the label 100. The dividing line L100 extends not only from the upstream edge 111 of the cut portion 110, but also throughout the cut portion 110 in plan view towards the inner surface side T101 and reaches the surface of the inner surface side T101 of the label 100. Therefore, the dividing line L100 is a loop along the cut portion 110. The area surrounded by the cut portion 110 becomes a label separation portion that can be separated from the area outside the cut portion 110. The dividing line L100 is close to the cut portion 26 of the bag body 20, separating the bag separation portion surrounded by the cut portion 26 together with the label separation portion from the bag body. The dividing line L100 is formed between the first resin layer 104 and the first adhesive layer 106 from the downstream edge 112 of the cut portion 110 toward the downstream side P2. In the label 100 configured in this way, when the label 100 is properly separated, as Figure 4 As shown, the outlet 5 is formed by using the label opening 125 and the bag opening 22.

[0053] With the label 100 properly separated as described above, the first adhesive layer 106 is peeled off but the second adhesive layer 108 is not, and peeling occurs between appropriate layers (in this embodiment, between the first silicon layer 105 and the first adhesive layer 106), forming a label opening 125 via the cutting portion 110. However, in the usage environment of the sheet packaging 2, such as in environments with low temperatures (e.g., below freezing), the adhesive strength of the first adhesive layer 106 and the second adhesive layer 108 may change, sometimes making it impossible to peel off the first adhesive layer 106 without peeling off the second adhesive layer 108. For example, the adhesive strength of the first adhesive layer 106 may sometimes decrease, causing the first adhesive layer 106 to peel off from the second resin layer 107 in the area surrounded by the cutting portion 110, making it impossible to separate the area surrounded by the cutting portion 110 as a whole, resulting in a failure to form the dispensing outlet 5. Furthermore, the adhesive strength of the outer adhesive layer 102 may sometimes decrease, causing it to peel off from the printed layer 103. This makes it impossible to separate the area surrounded by the cut portion 110 as a whole, resulting in the inability to form the outlet 5. To suppress these defects, increasing the adhesive strength of the adhesive layer could be considered. However, if the adhesive strength is too high, other components may sometimes break unexpectedly. More specifically, if the adhesive strength of the adhesive layer is increased, for example, the first resin layer 104 may sometimes break, resulting in the inability to form the outlet 5.

[0054] The sheet packaging body 2 of the present invention is configured to eliminate the defect of the unloading outlet 5 being unable to form a sheet. Next, the structure for eliminating the defect of the unloading outlet 5 will be described in detail. The label 100 has multiple regions when viewed from above. The weight per unit area of ​​silicon in the first silicon layer 105 is adjusted according to the different regions to suppress the defect of the unloading outlet 5 being unable to form.

[0055] Label 100 has multiple areas when viewed from above. Figure 5 The various regions are shown in the diagram. Label 100 has a first region R1 that, when viewed from above, extends from the upstream edge 111 in the opening direction P of the cut portion 110 towards the downstream side P2. The first region R1 may simply include the upstream edge 111 in the opening direction P of the cut portion 110, or it may extend beyond the upstream edge 111 in the opening direction P of the cut portion 110. The range of the first region R1 in the opening direction P may be between 1 mm and 5 mm from the upstream edge 111 towards the downstream side P2, and between 1 mm and 5 mm from the upstream edge 111 towards the upstream side P1.

[0056] The label 100 has a second region R2 that, when viewed from above, extends from the downstream edge 112 in the opening direction P of the cut portion 110 towards the downstream side P2. The second region R2 may simply include the downstream edge 112 in the opening direction P of the cut portion 110, or it may extend beyond the downstream edge 112 in the opening direction P of the cut portion 110. The range of the second region R2 in the opening direction P may be between 1 mm and 5 mm from the downstream edge 112 towards the downstream side P2, and between 1 mm and 5 mm from the downstream edge 112 towards the upstream side P1.

[0057] The label 100 has a third region R3 that extends from the upstream edge 121 to the downstream side P2 in the opening direction P of the label 100 when viewed from above. The first adhesive layer 106 is not disposed in the third region R3. Therefore, in the third region R3, the layers (outer layer 101, outer adhesive layer 102, printed layer 103, first resin layer 104, and first silicone layer 105) that are closer to the outer surface T102 than the first adhesive layer 106 are stacked in a manner that allows them to be separated from the second resin layer 107, serving as a gripping portion when the label 100 is opened. The end edge of the downstream side P2 of the third region can be 5 mm or more and 10 mm or less from the upstream edge 121 of the label 100 toward the downstream side P2.

[0058] The label 100 has a fourth region R4 that, when viewed from above, extends from the upstream edge 111 of the cut portion 110 toward the upstream side P1 to the third region R3. The fourth region R4 is the region sandwiched between the first region R1 and the third region R3 in the opening direction P. Therefore, the upstream edge P1 of the fourth region R4 is the downstream edge P2 of the third region R3, and the downstream edge P2 of the fourth region R4 is the upstream edge P1 of the first region R1.

[0059] The label 100, when viewed from above, has a fifth region R5 located downstream of the first region R1 in the opening direction P2 and upstream of the second region R2 in the opening direction P1, disposed around the cut section 110. The fifth region R5 may be located at the center of the cut section 110 in the opening direction P, including the middle position 110C of the cut section 110. The fifth region R5 may be a region that spans the cut section 110.

[0060] A first silicon layer 105 and a first adhesive layer 106 are disposed in a first region R1 and a second region R2. The weight per unit area of ​​silicon in the first silicon layer 105 in the first region R1 is lower than that in the second region R2. For comparing the weight per unit area of ​​silicon, a microscope or similar device can be used to compare the area coated with silicon, or the weight per unit area of ​​the region to which silicon is attached can be compared. Furthermore, when comparing the weight per unit area of ​​silicon for each region, the comparison can be made, for example, by cutting the sheet portion containing the first silicon layer 105 in the first region R1 and the sheet portion containing the first silicon layer 105 in the second region R2 to dimensions that allow for cutting according to the same planar dimensions. The sheet portion containing the first silicon layer 105 is a part of the label that can be easily separated by hand, for example, the portion extending from the outer layer 101 to the first silicon layer 105. The weights of the cut samples from the first region R1 and the second region R2 are measured respectively. In the samples of the first region R1 and the second region R2, the layers other than the first silicon layer 105 (from the outer layer 101 to the first resin layer 104) are the same. Therefore, the difference in sample weight can be determined to be a difference in silicon weight, and the heavier sample among samples of the same size can be determined to be the region with a higher silicon weight per unit area. Compared with the region without attached silicon, the region with attached silicon is easier to peel off relative to the adhesive. The higher the silicon weight per unit area, the easier it is to peel off relative to the adhesive, and the lower the silicon weight per unit area, the more difficult it is to peel off relative to the adhesive. The first region R1 extends at least from the upstream edge 111 of the cutting portion 110 to the downstream side P2 in the opening direction P, and is the portion (the second resin layer 107, etc.) that is separated by the cutting portion 110 when the label 100 is separated, which will be peeled off together with the first resin layer 104. Depending on the shape when the label 100 is pulled and the way the force is applied, the first silicon layer 105 that is peeled off together with the first resin layer 104 may peel off from the first adhesive layer 106. Especially when the temperature drops and the adhesive strength of the first adhesive decreases, the adhesion between the first adhesive layer 106 and the first silicon layer 105 cannot be guaranteed, and the first adhesive layer 106 and the first silicon layer 105 may peel off in the first region R1, preventing the formation of the label opening 125. However, the silicon in the first region R1 has a low weight per unit area, making it difficult to peel off relative to the first adhesive. Therefore, it is possible to suppress the peeling of the first adhesive layer 106 and the first silicon layer 105 in the first region R1 during label separation, and the second resin layer 107 separated by the cutting portion 110 can be peeled off together with the first resin layer 104 to form the label opening 125.

[0061] Furthermore, the second region R2 extends from the downstream edge 112 of the cut portion 110 towards the downstream side P2 in the opening direction P. Since the first silicon layer 105 has a higher weight per unit area in the second region R2, the first adhesive layer 106 can be separated from the first silicon layer 105. Therefore, when separating the label 100, the first silicon layer 105 can be peeled off from the first adhesive layer 106 in the second region R2, exposing the first adhesive layer 106. By exposing the first adhesive layer 106 around the label opening 125 after it is formed, the sheet packaging 2 after the label opening 125 is formed can be adhered to the outer packaging 3, etc., via the first adhesive layer 106, thus hygienically maintaining the sheet.

[0062] Alternatively, the first silicon layer 105 may be configured to extend across the entire area of ​​the cut portion 110. That is, the first silicon layer 105 is disposed in the surrounding area around the cut portion. The surrounding area includes the area enclosed by the cut portion 110 and the area outside the enclosed area. The first silicon layer 105 may be configured to extend a certain range (e.g., less than 5 mm) inward from the cut portion 110 and a certain range (e.g., less than 5 mm) outward from the cut portion 110 when viewed from above. To form the cut portion 110, a portion of the label 100's layers needs to be cut in the thickness direction using a cutting blade. In this case, by providing the first silicon layer 105 in the area where the cut portion 110 is formed, it is possible to suppress the adhesion of the adhesive layer to the cutting blade. Figure 5 As shown, the surrounding area can be a region including the first region R1, the third region R3 and the fifth region R5. In this embodiment, the first silicon layer 105 is not only provided in the first region R1, the second region R2 and the fifth region R5, but also along the cut-off portion 110 between the first region R1 and the second region R2, and between the second region R2 and the fifth region R5.

[0063] In this embodiment, a first silicon layer 105 is disposed in a first region R1, a second region R2, a third region R3, a fourth region R4, and a fifth region R5. The first silicon layer 105 is not disposed in a region within the area surrounded by the cut portion 110 that is further inward than a certain range from the cut portion 110. In the region surrounded by the cut portion 110 where the first silicon layer 105 is not disposed, the first resin layer 104 and the second resin layer 107 are bonded together via a first adhesive layer 106. Therefore, the portion of the second resin layer 107 surrounded by the cut portion 110 can be peeled off together with the first resin layer 104.

[0064] Alternatively, the first adhesive layer 106 may not be provided in the third region R3, but instead a first silicon layer 105 may be provided. Alternatively, in the third region R3, the second resin layer 107 and the first silicon layer 105 may be peelably overlapped. Since the first adhesive layer 106 is not provided in the third region extending downstream from the upstream edge 121 of the label 100, and the second resin layer 107 and the first silicon layer 105 are peelably overlapped, the label 100 can be separated from the portion of the first resin layer 104 held by the first silicon layer 105. Furthermore, when the label 100 is peeled downstream of the opening direction P2 via the first silicon layer 105, the first region R1 where the first silicon layer 105 and the first adhesive layer 106 abut is reached. At this time, since the silicon unit area weight of the first silicon layer 105 in the first region R1 is low, the first region R1 will not continue to be peeled through the silicon layer. Instead, the silicon layer will maintain the adhesive state relative to the first adhesive layer 106 side. The second resin layer 107 separated by the cutting part 110 can be separated together with the first resin layer 104 to form the label opening 125 in the desired shape.

[0065] Alternatively, a first silicon layer 105 may also be provided in the fourth region R4. The weight per unit area of ​​silicon in the first silicon layer 105 in the fourth region R4 may also be the same as the weight per unit area of ​​silicon in the first silicon layer 105 in the first region R1. Alternatively, the weight per unit area of ​​silicon in the first silicon layer 105 in the fourth region R4 may be higher than the weight per unit area of ​​silicon in the first silicon layer 105 in the first region R1. By making the weight per unit area of ​​silicon in the fourth region R4 higher than that in the first region R1, the first resin layer 104 can be peeled off from the first adhesive layer 106 via the first silicon layer 105. Furthermore, since the first adhesive layer 106 is not provided in the third region R3, which is located upstream of the fourth region R4 by P1, the first resin layer 104 can be peeled off from the second resin layer 107 in the region from the upstream edge 121 of the label 100 in the opening direction to the upstream edge 111 of the cutting portion 110 (the region where the third region and the fourth region are joined together). At this time, since the silicon weight per unit area of ​​the first silicon layer 105 in the first region R1 is low, the bonding state between the first resin layer 104 and the second resin layer 107 can be maintained via the first adhesive layer 106 in the region (first region) from the upstream edge 111 of the cut portion 110 toward the downstream side P2. Therefore, the second resin layer 107, after being separated by the cut portion, can be separated together with the first resin layer 104 to form the label opening 125 in the desired shape. Preferably, the fourth region R4, which is configured to have a higher silicon weight per unit area, can be configured to extend across the upstream side P1 of the first adhesive layer 106 in the opening direction P. The first resin layer 104 and the first adhesive layer 106 can be smoothly peeled off via the first silicon layer 105.

[0066] Alternatively, a first adhesive layer 106 may be provided in the fourth region R4. When the label 100 is separated, the first silicone layer 105 is peeled off from the first adhesive layer 106 in the fourth region R4, exposing the first adhesive layer 106. More specifically, the first adhesive layer 106 is exposed around the label opening 125, and in areas where the first adhesive layer 106 is not provided, the second resin layer 107 is exposed. By exposing the first adhesive layer 106 around the label opening 125, the sheet package 2 can be bonded to the inner surface of the outer package 3 via the first adhesive layer 106. Therefore, excessive evaporation of liquid through the label opening 125 can be suppressed, or the space around the label opening 125 can be reduced to hygienically maintain the sheet.

[0067] Figure 6 yes Figure 5 This is an enlarged schematic diagram of section D. The area where silicon is attached is... Figure 6 The area in the center is not shaded (the hollow area). A first silicon layer 105 is disposed in multiple rectangular regions R10. These rectangular regions R10 can be connected to each other or spaced apart. Preferably, the rectangular regions are appropriately connected to each other. According to this embodiment, by distributing silicon in multiple rectangular regions, compared to distributing silicon in multiple circular regions, it is easier to maintain a constant spacing between the regions, thus suppressing silicon unevenness. Therefore, by adjusting the weight per unit area according to the silicon area ratio, the silicon-based peel strength can be easily adjusted to the desired shape.

[0068] The weight per unit area of ​​silicon in the first silicon layer 105 can vary for each region. The weight per unit area can be calculated based on the total weight of silicon in the region. This can be achieved either by coating the entire area with silicone resin and varying the weight per unit area of ​​silicon for each region, or by making the weight per unit area of ​​silicone resin coating the same for each region and varying the area ratio for each region, thus varying the weight per unit area of ​​silicon for each region. The area ratio of the silicone resin can vary depending on the structure of each region, for example, based on the size of multiple regions (rectangular regions, etc.) or the differences in the shapes of multiple regions (rectangular, circular, etc.). For example, as... Figure 6 As shown, the area ratio of silicon-attached region R11 in the first region R1 can be lower than the area ratio of silicon-attached region R14 in the fourth region R4, and can be lower than the area ratio of silicon-attached region R13 in the third region R3.

[0069] The silicon area ratio of the first silicon layer 105 in the first region R1 can be 40% or less, preferably 35% or less. In this embodiment, the silicon area ratio of the first silicon layer 105 in the first region R1 is 35%. Furthermore, the silicon area ratio of the first silicon layer in the second region R2 can be 50% or more, preferably 80% or more, and more preferably 100% or more. In this embodiment, the silicon area ratio of the first silicon layer 105 in the second region R2 is 100%. The silicon area ratio of the first silicon layer 105 in the fourth region R4 can be the same as that of the first silicon layer 105. Alternatively, the silicon area ratio of the first silicon layer 105 in the fourth region R4 can be 50% or more, preferably 80% or more, and more preferably 100% or more. In this embodiment, the silicon area ratio of the first silicon layer 105 in the fourth region R4 is 50%. The silicon area ratio of the first silicon layer 105 in the third region R3 can be 50% or more, preferably 80% or more, and more preferably 100% or more. In this embodiment, the area ratio of the first silicon layer 105 in the third region R3 is 50%. Furthermore, the area ratio of silicon in the first silicon layer 105 in the fifth region R5 can be 50% or more, preferably 80% or more, and more preferably 100% or more. In this embodiment, the area ratio of silicon in the first silicon layer 105 in the third region R3 and the first silicon layer 105 in the fifth region R5 are both 100%. In the surrounding region, the weight per unit area of ​​silicon can gradually increase from the upstream side P1 towards the downstream side P2 in the opening direction P. For example, regarding the weight per unit area of ​​silicon in the first silicon layer 105, the first region R1 may have the lowest weight, the intermediate region between the first region R1 and the fifth region R5 may have a higher weight than the first region R1, the fifth region R5 may have a higher weight than the intermediate region, and the second region R2 may have a higher weight than the fifth region R5.

[0070] Alternatively, a first silicon layer 105 may also be provided in the fifth region R5. The weight per unit area of ​​silicon in the first silicon layer 105 in the fifth region R5 may be higher than that in the first silicon layer 105 in the first region R1. When the label 100 is partially separated, in the region upstream of the opening direction P of the cut portion 110 (e.g., the first region), the user can easily apply appropriate force along the opening direction and peel it off in the desired shape. However, in the fifth region R5, which is one of the regions downstream of the opening direction P of the cut portion 110, the user sometimes finds it difficult to apply appropriate force along the opening direction and peel it off in the desired shape. The weight per unit area of ​​silicon is greater in the first region than in the fifth region, and increases from the upstream side P1 to the downstream side P2 in the opening direction P. Therefore, in the downstream side of the opening direction of the cut portion, the label opening 125 can also be formed by peeling off the first silicon layer 105 in the desired shape. Preferably, the weight per unit area of ​​silicon in the first silicon layer 105 of the fifth region R5 can be higher than that of silicon in the first silicon layer 105 of the first region R1, and lower than that of silicon in the first silicon layer 105 of the second region R2. The weight per unit area of ​​silicon in the first silicon layer 105 is: first region > fifth region > second region, and it gradually increases from the upstream side P1 to the downstream side P2 in the opening direction P. Therefore, on the downstream side of the opening direction of the cut portion, the label opening 125 can also be formed by peeling off the first silicon layer 105 in the desired form.

[0071] The second adhesive layer 108 may be disposed across the first region R1 and the third region R3. More specifically, the second adhesive layer 108 may also be disposed in a fourth region R4 located between the first region R1 and the third region R3, and may span the first region R1, the third region R3, and the fourth region R4. Alternatively, the second silicon layer 109 may be disposed in the first region R1 instead of the third region R3. According to this embodiment, in the third region R3, the second silicon layer 109 is not disposed on the inner surface side T101 of the second adhesive layer 108, and the second adhesive layer 108 is bonded to the bag body 20, allowing the label 100 to be attached to the bag body 20 via the second adhesive layer 108. Therefore, the label 100 can be partially separated via the cutting portion 110, and the label 100 in the area other than the separated portion can continue to be bonded to the bag body 20 to maintain the label opening 125. In addition, in the first region R1, the second silicon layer 109 is disposed between the second adhesive layer 108 and the bag body 20. Therefore, when the label 100 is partially separated via the cutting portion 110, the label 100 can be easily and smoothly peeled off from the bag body 20 in the first region R1. By smoothly peeling the label 100 from the bag body 20 in the first region R1, which is the upstream edge 111 of the opening direction P of the cutting portion 110, the cutting portion 110 can be smoothly broken to form the label opening 125. Furthermore, in this embodiment, the second silicon layer 109 is provided across the first region R1 and the fourth region R4, but is not provided in the third region R3.

[0072] The adhesive strength of the first adhesive can be higher than that of the second adhesive. Because the first adhesive has higher adhesive strength, the sheet packaging 2, after the label opening 125 is formed by the first adhesive layer exposed after the label 100 is partially separated, can be bonded to the outer packaging 3, thus hygienically maintaining the sheet. On the other hand, because the second adhesive has lower adhesive strength, the separated portion can be easily peeled off from the bag when the label 100 is partially separated. Furthermore, after the label 100 is partially separated, the second adhesive is exposed on the bag-side surface of the separated portion. The second adhesive disposed on the separated portion separates from the bag containing the sheet and is not used to bond the sheet packaging 2, after the label opening 125 is formed, to the outer packaging 3 as the first adhesive does. Therefore, even though the adhesive strength of the second adhesive is lower, its impact on hygienic sheet retention is smaller. Moreover, the adhesive strength of the second adhesive preferably has the strength to adhere the separated portion of the label 100 to the surface of the bag 20 and retain the separated portion.

[0073] Preferably, the adhesive strength of the adhesive layers can be: outer adhesive layer 102 > first adhesive layer 106 > second adhesive layer 108. Furthermore, the tensile strength of the first resin layer can be higher than the peel strength of the outer adhesive layer 102 relative to the outer layer 101 and the peel strength of the outer adhesive layer 102 relative to the printed layer 103. The strength of the adhesive layers can be determined using the peel bond strength test method specified in JIS K 6854-2.

[0074] (3) Other implementation methods

[0075] The above embodiment is a sheet packaging body 2, which includes a bag body 20 and a label 100. However, the present invention can be a single packaging label (label 100 in the above embodiment) that can be peelably attached to the surface of a bag body 20 that packages an assembly 4 of multiple sheets 41 and can be opened and closed freely to cover the bag opening 22 of the bag body 20. The packaging label 100 can be peelably attached to the surface of a bag body 20 that packages an assembly 4 of multiple sheets 41 and can be opened and closed freely to cover the bag opening 22 of the bag body 20. The label 100 comprises: a first resin layer 104; a silicone layer (first silicone layer 105) abutting against the bag-side surface of the first resin layer 104 and having silicone content; a first adhesive layer 106 abutting against the bag-side surface of the silicone layer and having a first adhesive content; a second resin layer 107 abutting against the bag-side surface of the first adhesive layer 106; and a cutting portion 110 forming a label opening 125 constituting an outlet for the sheet 41. The cutting portion 110 is not formed on the first resin layer 104 but on the second resin layer 107. The label 100 for packaging is configured such that by pulling the first resin layer 104 from the upstream side P1 to the downstream side P2 in the opening direction P, a portion of the second resin layer 107 is separated via the cutting portion 110, and the separated portion of the second resin layer 107 is peeled off together with the first resin layer 104 to form the label opening 125. The label 100 has a first region R1 extending from the upstream edge 111 in the opening direction P of the cutting portion 110 to the downstream side P2, and a second region R2 extending from the downstream edge in the opening direction P of the cutting portion 110 to the downstream side P2. A first silicon layer 105 and a first adhesive layer 106 are disposed in the first region R1 and the second region R2. The weight per unit area of ​​silicon in the first silicon layer 105 in the first region R1 is lower than that in the second region R2. According to this embodiment, the lower weight per unit area of ​​silicon in the first silicon layer 105 in the first region R1 makes it more difficult to peel off relative to the first adhesive. Therefore, it is possible to suppress the peeling of the first adhesive layer 106 from the first silicon layer 105 in the first region R1 during label separation, and the outlet 5 for forming the sheet 41 can be peeled off together with the first resin layer 104 separated by the cutting portion 110. In addition, since the weight per unit area of ​​the first silicon layer 105 is higher in the second region R2, it is possible to separate the first adhesive layer 106 from the first silicon layer 105. Therefore, when separating the label 100, the first silicon layer 105 and the first adhesive layer 106 can be peeled off in the second region R2, and the first silicon layer 105 and the first resin layer 104 can be peeled off together to expose the first adhesive layer 106. By exposing the first adhesive layer 106 around the label opening 125, the bag body 20 after the label opening 125 is formed can be adhered to the outer packaging body 3, etc., through the first adhesive layer 106, and the sheet 41 can be hygienically maintained.

[0076] The present invention has been described in detail above using the embodiments described above. However, it will be apparent to those skilled in the art that the present invention is not limited to the embodiments described in this specification. The present invention can be implemented as modifications and variations without departing from the spirit and scope of the invention as defined by the claims. Therefore, the description in this specification is for illustrative purposes only and does not have any limiting meaning for the present invention.

[0077] Furthermore, by reference, the entire contents of Japanese Patent Application No. 2023-159444, filed on September 25, 2023, are incorporated into this specification.

[0078] Explanation of reference numerals in the attached figures

[0079] 2: Sheet packaging

[0080] 4: Collective

[0081] 41: Sheet

[0082] 5: Take out the exit

[0083] 20: Bag body

[0084] 22: Bag opening

[0085] 26: Cut-off section

[0086] 100: Label (label for packaging)

[0087] 101: Outer layer

[0088] 102: Outer adhesive layer

[0089] 103: Printed layer

[0090] 104: First resin layer

[0091] 105: First silicon layer

[0092] 106: First adhesive layer

[0093] 107: Second resin layer

[0094] 108: Second adhesive layer

[0095] 109: Second silicon layer

[0096] 110: Cut-off section

[0097] 125: Label opening

[0098] P: Kaifeng direction

[0099] P1: Upstream side

[0100] P2: Downstream side

[0101] R1: First Region

[0102] R2: Second Region

[0103] R3: Third Region

[0104] R4: Fourth Region

[0105] R5: Fifth Region

[0106] T101: Inner surface side (bag body side)

[0107] T102: Outer surface side.

Claims

1. A sheet packaging body comprising: an assembly of a plurality of sheets; a bag body that packages the assembly and has an opening forming an outlet for the sheets; and a label that covers the bag opening and is peelably attached to the surface of the bag body, characterized in that, The label has: First resin layer; A silicon layer, which abuts against the bag-side surface of the first resin layer and has silicon content; A first adhesive layer, which abuts against the bag-side surface of the silicon layer and has a first adhesive; The second resin layer abuts against the bag-side surface of the first adhesive layer; as well as A cutting section, which forms a label opening constituting the dispensing port of the sheet. The cut portion is not formed in the first resin layer but in the second resin layer. The label is configured such that by pulling the first resin layer from upstream to downstream in the opening direction, a portion of the second resin layer is separated via the cutting portion, and the separated portion of the second resin layer is peeled off together with the first resin layer to form the label opening. The label has a first region extending downstream from the upstream edge of the cut portion in the opening direction and a second region extending downstream from the downstream edge of the cut portion in the opening direction. The silicon layer and the first adhesive layer are disposed in the first region and the second region, respectively. The weight per unit area of ​​silicon in the first region is lower than that of silicon in the second region.

2. The sheet packaging body according to claim 1, characterized in that, The label has a third region extending from the upstream edge of the label in the opening direction to the downstream side. The third region does not have the first adhesive layer but instead has the silicon layer. In the third region, the second resin layer and the silicon layer can be peelably overlapped.

3. The sheet packaging body according to claim 2, characterized in that, The label has a fourth region extending from the upstream edge of the cut portion in the opening direction toward the upstream side to the third region. The silicon layer is disposed in the fourth region. The weight per unit area of ​​silicon in the fourth region is higher than that of silicon in the first region.

4. The sheet packaging body according to claim 3, characterized in that, The first adhesive layer is disposed in the fourth region.

5. The sheet packaging body according to any one of claims 1 to 4, characterized in that, The silicon layer is disposed in a plurality of rectangular regions in the first region when viewed from above.

6. The sheet packaging body according to any one of claims 1 to 4, characterized in that, The silicon area ratio of the silicon layer in the first region is less than 40%. The silicon area ratio of the silicon layer in the second region is 50% or more.

7. The sheet packaging body according to any one of claims 1 to 4, characterized in that, The label has a fifth region located downstream of the first region in the opening direction and upstream of the second region in the opening direction, the fifth region being disposed around the cut portion. The silicon layer is disposed in the fifth region. The silicon in the fifth region has a higher weight per unit area than the silicon in the first region.

8. The sheet packaging body according to any one of claims 1 to 4, characterized in that, The label has a second adhesive layer and a second silicone layer. The second adhesive layer abuts against the bag-side surface of the second resin layer and has a second adhesive. The second silicone layer abuts against the bag-side surface of the second adhesive layer and has silicone. The label has a third region extending from the upstream edge of the label in the opening direction to the downstream side. The second adhesive layer is disposed across the first region and the third region. The second silicon layer is not disposed in the third region but in the first region.

9. The sheet packaging body according to any one of claims 1 to 4, characterized in that, The label has a second adhesive layer that abuts against the bag-side surface of the second resin layer and has a second adhesive. The adhesive strength of the first adhesive is higher than that of the second adhesive.

10. A label for packaging, the label being peelably attached to the surface of a bag for packaging an assembly of multiple sheets, and capable of being opened and closed freely to cover the opening of the bag, characterized in that, The label has: First resin layer; A silicon layer, which abuts against the bag-side surface of the first resin layer and has silicon content; A first adhesive layer, which abuts against the bag-side surface of the silicon layer and has a first adhesive; The second resin layer abuts against the bag-side surface of the first adhesive layer; as well as A cutting section, which forms a label opening constituting the dispensing port of the sheet. The cut portion is not formed in the first resin layer but in the second resin layer. The label is configured such that by pulling the first resin layer from upstream to downstream in the opening direction, a portion of the second resin layer is separated via the cutting portion, and the separated portion of the second resin layer is peeled off together with the first resin layer to form the label opening. The label has a first region extending downstream from the upstream edge of the cut portion in the opening direction and a second region extending downstream from the downstream edge of the cut portion in the opening direction. The silicon layer and the first adhesive layer are disposed in the first region and the second region, respectively. The weight per unit area of ​​silicon in the first region is lower than that of silicon in the second region.

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