Label and label continuum

Abstract

To provide a label capable of preventing an adhesive part from protruding outward from an adherend even when adhesive layers coated with self-adhesive adhesive are stuck to each other, and a continuous body.SOLUTION: A label 1 includes: an adhesive layer of a self-adhesive adhesive that has low adhesiveness to the adherend but the adhesive strength between adhesive layers is high, which is formed over the rear side of a label base material; a hole portion 7 penetrating the entire label 1 in the thickness direction of the label 1; and a folding part 8 that is formed next to the hole 7 for folding label 1. When the label 1 is folded back, the adhesive layers adhere to each other around the hole 7, and a part of the adhesive layer is exposed from the hole 7.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a label and a label continuum that are used by being attached to a container such as a PET (polyethylene terephthalate) bottle.

Background Art

[0002] Conventionally, labels have been proposed that are used by being attached to the outer peripheral surfaces of PET bottles, glass bottles, etc. that are used as containers for beverages, detergents, shampoos, cosmetics, and the like.

[0003] For example, a label is disclosed in which an adhesive layer is provided on the back surface of a label base material, and the adhesive layer is formed of a self-adhesive adhesive that has low adhesiveness to an adherend such as the above-mentioned PET bottle but has high adhesive strength between the adhesive layers (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] Here, in the label described in Patent Document 1 above, since the adhesive layers coated with the self-adhesive adhesive can be adhered to each other, when the adhesive layers are adhered to each other, the adhered portion protrudes outward from the adherend, and there is a problem that this protruding portion becomes an obstacle when performing display or the like.

[0006] Therefore, the present invention has been made in view of the above problems, and an object thereof is to provide a label and a label continuum that can prevent the adhered portion from protruding outward from the adherend even when the adhesive layers coated with the self-adhesive adhesive are adhered to each other.

Means for Solving the Problems

[0007] In order to achieve the above object, in a first invention, in a label having an adhesive layer provided on the back side of a label base material, the adhesive layer is formed of a self-adhesive having low adhesiveness to an adherend but high adhesive force between the adhesive layers. In the thickness direction of the label, a hole portion penetrating the entire label and a bent portion provided adjacent to the hole portion for folding the label are provided. By folding the label, the adhesive layers adhere to each other around the hole portion, and a part of the adhesive layer is exposed from the hole portion.

[0008] According to the above configuration, even when the adhesive layers coated with the self-adhesive are adhered to each other, it is possible to prevent the adhesive portion from protruding outward from the adherend.

[0009] In a second invention, in a label having an adhesive layer provided on the back side of a label base material, the adhesive layer is formed of a self-adhesive having low adhesiveness to an adherend but high adhesive force between the adhesive layers. The label includes a bent portion for folding the label and a cut portion continuously provided to the bent portion. By folding the label, the adhesive layers adhere to each other around the cut portion, and a part of the adhesive layer is exposed along the cut portion.

[0010] According to the above configuration, even when the adhesive layers coated with the self-adhesive are adhered to each other, it is possible to prevent the adhesive portion from protruding outward from the adherend.

[0011] In a third invention, in the first invention or the second invention, a printing layer is provided on the front side of the label base material.

[0012] In a fourth invention, in any one of the first to third inventions, an anchor layer is provided between the back surface of the label base material and the adhesive layer.

[0013] In a fifth invention, a label continuum includes the label according to any one of the first to fourth inventions.

Effect of the Invention

[0014] According to the present invention, even when adhesive layers coated with a self-adhesive are adhered to each other, it is possible to prevent the adhered portion from protruding outward from the adherend.

Brief Description of the Drawings

[0015]

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Modes for Carrying Out the Invention

[0016] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the following embodiments.

[0017] (First Embodiment) FIG. 1 is a plan view showing the label of this embodiment, and FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1. Further, FIG. 3 is a plan view showing a label continuum composed of the labels of this embodiment.

[0018] As shown in FIGS. 1 and 2, the label 1 of this embodiment includes a label base material 2, an adhesive layer 3 provided on the back surface side of the label base material 2, and a printing layer 4 provided on the front surface side of the label base material 2.

[0019] As the material of the label base material 2, various resin films excellent in water resistance, various synthetic papers, paper base materials such as high-quality paper, etc. can be used.

[0020] As the adhesive for forming the adhesive layer 3, a self-adhesive having low adhesiveness to an adherend such as a PET bottle but high adhesive force between the adhesive layers 3 is used.

[0021] As the material of such a self-adhesive, for example, those containing natural rubber latex and styrene-acrylonitrile copolymer aqueous emulsion, elastomers containing natural rubber and styrene-isoprene-styrene block copolymer, etc. can be used. For example, a self-adhesive (trade name: Cybinol pressure-sensitive adhesive E) of Siden Chemical Co., Ltd. can be used.

[0022] Further, as shown in FIG. 2, an anchor layer 5 is provided between the back surface of the label base material 2 and the adhesive layer 3, and the label base material 2 and the adhesive layer 3 are laminated via the anchor layer 5.

[0023] This anchor layer 5 is for enhancing the adhesiveness of the adhesive layer 3 to the back surface of the label base material 2. As its material, another adhesive with high adhesiveness to both the self - adhesive used to form the adhesive layer 3 and the label base material 2 is used. More specifically, for example, an adhesive of the styrene - acrylonitrile copolymer aqueous emulsion type (trade name: AC - 340) from Siden Chemical Co., Ltd. can be used.

[0024] The printing layer 4 is for imparting decorativeness to the label 1. As the material of this printing layer 4, for example, it is preferable to use ink containing a release agent such as silicon. More specifically, UV - curable ink containing a release agent from T&K TOKA Co., Ltd. can be used.

[0025] Also, as shown in FIG. 2, a blocking prevention layer 6 is provided between the surface of the label base material 2 and the printing layer 4, and the label base material 2 and the printing layer 4 are laminated via the blocking prevention layer 6.

[0026] This blocking prevention layer 6 is for suppressing the strong adhesion of the self - adhesive in the adhesive layer 3 provided on the back surface side of the label base material 2 to the part of this printing layer 4 when the label continuum 30 shown in FIG. 3 is wound and the label continuum 30 is wound up. It is formed by various release agents such as non - silicon - based, silicon - based, and fluorine - based release agents.

[0027] Here, as the non - silicon - based release agent, for example, an emulsion - type or solvent - type non - silicon - based release agent containing a long - chain alkyl pendant polymer, a cationic surfactant, an alkyl ether, and isopropyl alcohol can be used. More specifically, Peiroil 406 or Peiroil 1050 (both trade names) from Ichifunka Oil Industry Co., Ltd. can be used.

[0028] In addition, a material obtained by subjecting the surface of the label base material 2 to various treatments can also be used so that the blocking prevention layer 6 and the printing layer 4 are appropriately formed on the surface.

[0029] Further, as shown in FIGS. 1 and 2, the printing layer 4 can be partially provided at a desired position on the anti-blocking layer 6.

[0030] Also, the label continuum 30 shown in FIG. 3 is a long strip formed by the above-described label 1. In this label continuum 30, a separation line 31 for cutting the label continuum 30 in the width direction W and separating it into each label 1 having a desired length is provided along the width direction W of the label continuum 30.

[0031] Here, in the label 1 of the present embodiment, as shown in FIGS. 1 to 3, in the thickness direction T of the label 1, there are provided a hole portion 7 penetrating the entire label 1 and a bending portion 8 provided adjacent to the hole portion 7 for folding the label 1.

[0032] Then, as shown in FIG. 4, by folding along the bending portion 8 and folding back the label 1, the adhesive layers 3 adhere to each other around the hole portion 7, and a part of the adhesive layer 3 is exposed from the hole portion 7.

[0033] Therefore, by adhering the adhesive layer 3 on one end 1a side of the label 1 shown in FIG. 4 to the adhesive layer 3 exposed from the hole portion 7, it becomes possible to adhere from the back surface like a tape. Thus, as shown in FIG. 5, it becomes possible to produce an annular label 1 in which the adhered portion does not protrude outward.

[0034] FIG. 6 shows a state in which the annular label 1 shown in FIG. 5 is attached to the outer peripheral surface of a container 9 (for example, containers for beverages, detergents, shampoos, and cosmetics) which is an object to be labeled. As shown in FIG. 6, in the label 1 of the present embodiment, unlike the conventional label, even when the adhesive layers 3 coated with the self-adhesive are adhered to each other, it is possible to prevent the adhered portion from protruding outward from the container 9.

[0035] In this case, as described above, as the adhesive layer 3, an adhesive having low adhesiveness to an adherend such as a PET bottle is used, and the coated surface of the adhesive has an anti-slip function. Therefore, the annular label does not shift from the container 9.

[0036] (Second Embodiment) Next, a second embodiment of the present invention will be described. FIG. 7 is a plan view showing the label of this embodiment, and FIG. 8 is a cross-sectional view taken along line B-B of FIG. 7. Note that the same components as those in the first embodiment are denoted by the same reference numerals and their description is omitted.

[0037] As shown in FIGS. 7 to 8, the label 10 of this embodiment is characterized in that instead of the hole 7 in the label 1 described above, it is provided with a cut portion 11 continuously provided on the bent portion 8.

[0038] Then, as shown in FIG. 9, by folding the label 1 in a mountain fold along the bent portion 8, the adhesive layers 3 adhere to each other around the cut portion 11, and a protrusion 12 is formed along the cut portion 11, and a part of the adhesive layer 3 is exposed.

[0039] Therefore, by adhering the adhesive layer 3 on the one end 10a side of the label 10 shown in FIG. 9 to the adhesive layer 3 exposed from the cut portion 11, it becomes possible to adhere from the back like a tape. Therefore, as shown in FIG. 10, it is possible to produce an annular label 10 in which the adhered portion does not protrude outward.

[0040] As a result, similar to the case of FIG. 6 described above, in the label 10 of this embodiment, unlike the conventional label, even when the adhesive layers 3 coated with the self-adhesive are adhered to each other, it is possible to prevent the adhered portion from protruding outward from the container 9.

[0041] The above embodiment may be modified as follows.

[0042] As shown in Fig. 11, a configuration may be adopted in which a plurality of (two each in Fig. 11) hole portions 7 and bent portions 8 are provided, or as shown in Fig. 12, a configuration may be adopted in which a plurality of (two each in Fig. 12) cut portions 11 and bent portions 8 are provided. With such a configuration, it becomes possible to adjust the size of the annular labels 1 and 10 in accordance with the shape and size of the object to which the annular labels 1 and 10 are to be attached.

[0043] In addition, the labels 1 and 10 of the present invention can be suitably used for various applications other than the application of attaching them to the outer peripheral surface of the above-described container 9.

[0044] For example, as described above, as the adhesive for forming the adhesive layer 3, a self-adhesive with a high adhesive force between the adhesive layers 3 is used. Once the adhesive layers 3 are adhered to each other, the labels 1 and 10 are damaged when the adhesive layer 3 is peeled off, so they can be used as security labels. More specifically, for example, the labels 1 and 10 are wound around and attached to a bento box container or a canned cookie container to fix the container lid so that it cannot be opened. In this case, as described above, once the adhesive layers 3 are adhered to each other, the labels 1 and 10 are damaged when the adhesive layer 3 is peeled off, so it can be easily confirmed visually that the container is unopened. Also, by winding and attaching it around the wrist as an armband for concert or theme park admission reception, it can be easily confirmed visually that the admission has been received, and since the labels 1 and 10 are damaged when the adhesive layer 3 is peeled off, it can be used as a security label (for example, to prevent the transfer of an already received admission label to others).

[0045] Also, for example, in a souvenir container, in a paper container that can be used as a small item container later, when a seal for indicating unopened is attached, the container may be damaged or soiled when the seal is peeled off. Instead of this seal, by attaching the label 1 and 10 of the present invention to the container, it is possible to prevent damage to the container when the label 1 and 10 are removed.

[0046] Moreover, it can also be used for bundling foods (such as green onions, asparagus, etc.), and can also be wound around and attached to individually packaged foods such as Japanese confectioneries.

[0047] In addition, in the above-described embodiment, the anchor layer 5 and the blocking prevention layer 6 are provided. However, when the label base material 2 is a paper base material, the anchor layer 5 and the blocking prevention layer 6 may not be provided. Further, when the label base material 2 is a film base material, the blocking prevention layer 6 may not be provided.

Industrial Applicability

[0048] As described above, the present invention is particularly useful for labels and label continua used by attaching to containers, for example.

Explanation of Reference Numerals

[0049] 1 Label 2 Label Base Material 3 Adhesive Layer 4 Printing Layer 5 Anchor Layer 6 Blocking Prevention Layer 7 Hole Portion 8 Bending Portion 9 Container 10 Label 11 Cutting Portion 12 Protrusion Portion 30 Label Continuum 31 Separation Line

Claims

1. A label that is provided with an adhesive layer on the back side of a label base material and is used by being wound around an adherend, wherein the adhesive layer is formed of a self-adhesive having low adhesiveness to the adherend but high adhesive force between the adhesive layers, a bent portion for folding the label, and a cut portion continuously provided to the bent portion are provided, and by folding the label, the adhesive layers adhere to each other around the cut portion, and a part of the adhesive layer is exposed along the cut portion. A label characterized by this.

2. The label according to claim 1, wherein a printing layer is provided on the front side of the label base material.

3. The label according to claim 1 or claim 2, wherein an anchor layer is provided between the back surface of the label base material and the adhesive layer.

4. A label continuum characterized by comprising the label according to any one of claims 1 to 3.

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