JP2011033925A - Laminated label - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a laminated label whose top sheet and bottom sheet can be separated from each other and adhered to an adherend, and which is improved so that a striped pattern hardly appears on the external surface of the top sheet and bottom sheet adhered to the adherend. <P>SOLUTION: The laminated label 10 includes the top sheet 1 wherein an adhesive face 12a and a releasing face 13a are exposed alternately, and the bottom sheet 2 wherein an adhesive face 22a and a releasing face 23a are exposed alternately. The top sheet 1 and the bottom sheet 2 are laminated in such a manner that the adhesive face 12a of the top sheet 1 faces the releasing face 23a of the bottom sheet 2 and the releasing face 13a of the top sheet 1 faces the adhesive face 22a of the bottom sheet 2. The top sheet 1 and the bottom sheet 2 wherein the adhesive faces 12a, 22a and releasing faces 13a, 23a are exposed alternately are respectively formed by providing adhesive agent layers 12, 22 in solid on the inner face side and arranging, on the surface of the adhesive agent layers 12, 22, a plurality of release agent layers 13, 23 side by side at intervals. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a laminated label capable of obtaining a tack label by peeling off a laminated sheet.

  Conventionally, as shown in FIG. 5A, an upper sheet 110 having a strip-like adhesive layer 112 and a release agent layer 113 arranged in a staggered manner on the inner surface side, and a strip-like adhesive layer 122 on the inner surface side. Lower layer 120 in which the agent layer 123 is arranged in a staggered manner, and the upper side so that the surface of the belt-like pressure-sensitive adhesive layer of one sheet faces the surface of the belt-like release agent layer of the other sheet A laminated label 100 in which a sheet 110 and a lower sheet 120 are overlaid is known (for example, Patent Document 1).

In the laminated label 100, the upper sheet 110 and the lower sheet 120 are overlapped so that the surfaces of the strip release agent layer and the strip adhesive layer face each other. Can be peeled off.
The peeled upper sheet 110 and lower sheet 120 can be attached to the adherend A such as a container via the surface of the belt-like pressure-sensitive adhesive layer 112 as shown in FIG. For this reason, by performing desired printing etc. on the upper sheet 110 and the lower sheet 120, both sheets can be used as a tack label for display.

JP-A-6-274104

However, when the upper and lower sheets 110 and 120 of the conventional laminated label 100 are attached to the adherend A, as shown in FIG. 5B, strip-like dents (from unevenness) are formed on the outer surfaces of these sheets. A striped pattern) appears in a multistage manner.
When such a multi-step band-shaped dent is generated on the outer surface of the sheet, dust adheres to the uneven step portion and a black and dirty striped pattern appears on the surface.

  An object of the present invention is to provide a laminated label in which a striped pattern is unlikely to appear on the outer surface of a sheet after the peeled sheet is attached to an adherend.

The present inventors diligently studied the cause of the above problems.
In a conventional laminated label, a belt-like pressure-sensitive adhesive layer and a release agent layer are separately arranged in a staggered manner. Since the pressure-sensitive adhesive layer must adhere to the adherend with sufficient adhesive strength, it must be formed relatively thick. On the other hand, the release agent layer may be relatively thin because it only has to reduce or suppress the adhesive force of the pressure-sensitive adhesive. Moreover, since the release agent layer is generally formed by applying a liquid containing a release agent, its thickness is thin in practice. Therefore, the pressure-sensitive adhesive layer and the release agent layer have a large difference in thickness. For this reason, there is a difference in level between the inner surface of the upper sheet and the lower sheet (the difference in height between the surface of the pressure-sensitive adhesive layer and the surface of the release agent layer). large. In addition, a gap is provided between the adjacent pressure-sensitive adhesive layer and release agent layer, as shown in FIG. This is because it is practically difficult to apply the adhesive layer and the release agent layer side by side without any gap. A large step is also generated between the gap and the pressure-sensitive adhesive layer.
Due to these large steps, a striped pattern appears on the outer surface of the peeled sheet.
The present inventors have found that the above problems can be solved by relatively simple means under such cause elucidation.

  The present invention has an upper sheet in which the adhesive surface and the release surface are alternately exposed, and a lower sheet in which the adhesive surface and the release surface are alternately exposed, and the adhesive surface of the upper sheet peels off the lower sheet. In the laminated label in which the upper sheet and the lower sheet are overlapped so that the adhesive surface of the lower sheet faces the release surface of the upper sheet, the adhesive surface and the release surface are alternated. The upper sheet and the lower sheet that are exposed to each other are respectively formed by providing a solid adhesive layer on the inner surface side thereof and arranging a plurality of release agent layers in parallel on the surface of the adhesive layer. ing.

In the laminated label, the pressure-sensitive adhesive layer is provided in a solid shape on the inner surface side of the upper sheet and the inner surface side of the lower sheet. By providing a release agent layer on the surface of this pressure-sensitive adhesive layer with a gap, the upper sheet and the lower sheet have an adhesive surface where the surface of the pressure-sensitive adhesive layer is exposed, and the surface of the release agent layer is peeled off. It is a surface.
The level difference (the height difference between the adhesive surface and the release surface) on the inner surfaces of the upper sheet and the lower sheet corresponds to the thickness of the release agent layer. Since the release agent layer can be formed relatively thin, the laminated label of the present invention has small steps on the inner surfaces of the upper sheet and the lower sheet.
Therefore, it is possible to suppress the appearance of a striped pattern on the outer surface of the sheet when the upper sheet and the lower sheet that are overlapped are peeled off and the sheet is attached to the adherend.

In a preferred laminated label of the present invention, the thickness of each release agent layer of the upper sheet and the lower sheet is 0.1 μm to 10 μm, respectively.
Moreover, as for the preferable laminated label of this invention, the anchor coat layer is provided in the surface of the adhesive layer corresponding to the range in which the said releasing agent layer is provided.

The laminated label of the present invention can peel off the upper sheet and the lower sheet, and affix this sheet to the adherend.
A striped pattern is unlikely to appear on the outer surface of the pasted sheet, and thus a tack label having a beautiful appearance can be provided.

The partial omission plan view of the lamination label concerning one embodiment of the present invention. The II-II sectional view taken on the line of FIG. 1 (sectional drawing cut | disconnected in the direction orthogonal to one direction). FIG. 2 is an exploded cross-sectional view in which an upper sheet and a lower sheet of the laminated label in FIG. 1 are separated. 1 shows a method for producing the laminated label of the present invention, wherein (a) is a partially omitted plan view of a long base film, (b) is a partially omitted rear view of the base film, and (c). FIG. 2 is a plan view of a state in which a base film is folded. (A) is a reference sectional view of a conventional laminated label, (b) is a reference sectional view showing a state in which an upper sheet and a lower sheet are peeled off and pasted on an adherend in the conventional laminated label. Sectional drawing cut | disconnected in the direction orthogonal to one direction of the laminated label which concerns on the modification of this invention. It is a top view which shows the modification of the coating pattern of the releasing agent layer of the lamination | stacking label of this invention, Comprising: The partially abbreviated top view seen from the inner surface side of the upper sheet | seat.

Embodiments of the present invention will be described below with reference to the drawings. However, in each figure, it should be noted that the thickness and size of the base film, the pressure-sensitive adhesive layer, the release agent layer, and the like are different from the actual ones.
In the laminated label, the adhesive surface of the upper sheet and the release surface of the lower sheet, and the release surface of the upper sheet and the adhesive surface of the lower sheet are actually in close contact, but in the cross-sectional view of FIG. Note that these surfaces are shown separated.

1 and 2, reference numeral 10 denotes two sheets 1 and 2 (upper sheet 1 and lower sheet 2) in which the adhesive surfaces 12a and 22a and the release surfaces 13a and 23a are alternately exposed. 12a and 22a and the peeled surfaces 13a and 23a are shown facing each other.
The upper sheet 1 and the lower sheet 2 in which the adhesive surfaces 12a and 22a and the release surfaces 13a and 23a are alternately exposed are provided with adhesive layers 12 and 22 in a solid shape on the inner surface side, respectively. , 22 are formed by arranging a plurality of release agent layers 13, 23 side by side at intervals.

Specifically, as shown in FIG. 3, the upper sheet 1 has a base film 11, an adhesive layer 12, and a plurality of release agent layers 13. Similarly, the lower sheet 2 includes a base film 21, an adhesive layer 22, and a plurality of release agent layers 23.
Each base film 11, 21 is not particularly limited, and for example, a synthetic resin film, paper, synthetic paper, a foamed resin film, a metal vapor deposited film, a nonwoven fabric, or a laminate (for example, a synthetic resin film and For example, a paper laminate).
As the synthetic resin film, since it is excellent in rigidity, it is preferable to use a synthetic resin film such as a polyester type such as a polyethylene terephthalate film, a polyamide type, or a polyolefin type such as polypropylene. It is more preferable to use a film.
The base films 11 and 21 may be either transparent or non-transparent films. Both base films 11 and 21 are usually formed from the same film, but may be formed from different films.

  The thickness of the base films 11 and 21 is not particularly limited. For example, when synthetic resin films are used as the base films 11 and 21, the thickness of the base films 11 and 21 is usually about 10 to 100 μm, and preferably about 15 to 80 μm.

  Since the upper sheet 1 and the lower sheet 2 are each used as a tack label, desired design printing such as a product name and a design is performed as necessary (not shown). The design printing may be performed on any of the inner and outer surfaces of the base films 11 and 21 (the inner surface refers to the surface on which the upper sheet 1 and the lower sheet 2 are overlapped with each other, and the outer surface. Is a surface on the side where the upper sheet 1 and the lower sheet 2 are not overlapped). Preferably, the design printing is performed on the outer surface side of the base films 11 and 21. In addition, when design printing is performed on the inner surfaces of the base films 11 and 21, an adhesive layer is provided on the surface of the design printing layer. In this case, the adhesive is provided by interposition of the design printing layer. May be difficult to apply.

The planar view shape of the base films 11 and 21 (the upper sheet 1 and the lower sheet 2) is not particularly limited, and is set to a desired shape such as a substantially rectangular shape, a substantially circular shape, or a substantially elliptical shape.
However, it is preferable that the base films 11 and 21 are formed in a long shape because productivity is good and the film can be rolled and supplied to the labeler.

  In the present embodiment, the base films 11 and 21 (upper sheet 1 and lower sheet 2) have a rectangular shape (that is, a long shape) in which one direction X is sufficiently longer than the other direction Y. Is formed. However, the one direction X and the other direction Y refer to directions orthogonal to each other in the plane of the film. Thus, the lamination | stacking label 10 which consists of the elongate upper sheet | seat 1 and the lower sheet | seat 2 is elongate similarly. When the long laminated label 10 is used, a plurality of sheet-like tack labels can be obtained by cutting or sequentially punching it into a desired shape.

  The lengths of the base films 11 and 21 in the other direction Y (in the present embodiment, the width direction) are preferably the same length. But the length of the other direction Y of either one of the base films 11 and 21 may be formed a little short.

  Next, the pressure-sensitive adhesive layers 12 and 22 are respectively formed by applying a solid pressure-sensitive adhesive to the entire inner surfaces of the base films 11 and 21. The solid form means a state where the pressure-sensitive adhesive is applied without a gap and a state where the pressure-sensitive adhesive is applied substantially without a gap. The state in which the adhesive is applied substantially without any gap includes the state in which the adhesive is applied in a planar mesh or innumerable dots, and the interval between the meshes or the interval between adjacent points is It is preferably 2 mm or less (more preferably 1 mm or less).

The thicknesses of the pressure-sensitive adhesive layers 12 and 22 are preferably substantially uniform (that is, the thicknesses of the pressure-sensitive adhesive layers 12 and 22 are substantially equal at any location within the surface of the base films 11 and 21). Is preferred). If the thicknesses of the pressure-sensitive adhesive layers 12 and 22 are different at any location, a concavo-convex pattern may occur on the outer surface of the sheet due to the thickness difference.
The thicknesses of the pressure-sensitive adhesive layers 12 and 22 are not particularly limited, but if they are too thin, they may not adhere to the adherend with sufficient adhesive strength. For this reason, the thickness of the pressure-sensitive adhesive layers 12 and 22 is preferably 15 μm or more, more preferably 20 μm or more, and particularly preferably 25 μm or more. On the other hand, even if the pressure-sensitive adhesive layers 12 and 22 are formed very thick, the effect is hardly changed. Therefore, the thickness of the pressure-sensitive adhesive layers 12 and 22 is 50 μm or less, preferably 40 μm or less for cost effectiveness. .

  As the pressure-sensitive adhesive forming the pressure-sensitive adhesive layers 12 and 22, a known pressure-sensitive pressure-sensitive adhesive is used. The pressure-sensitive adhesive is an adhesive that has adhesiveness at room temperature and adheres to an adherend when pressed. Examples of the pressure-sensitive adhesive include solvent-based adhesives, acrylic emulsion-based adhesives, rubber-based hot-melt adhesives, and the like.

Next, the plurality of release agent layers 13 and 23 are respectively formed by applying a release agent on the surfaces of the pressure-sensitive adhesive layers 12 and 22 in a strip shape.
Each of the release agent layers 13 and 23 has a belt-like shape with a predetermined width, and extends in parallel with one direction X (longitudinal direction in the present embodiment) of the base films 11 and 21. The strip-like release agent layers 13 and 23 are provided in a multistage manner with a predetermined interval in the other direction Y of the base films 11 and 21.
In the range where the release agent layers 13 and 23 are provided, the adhesive force of the adhesive layers 12 and 22 is concealed. Accordingly, the surfaces of the release agent layers 13 and 23 (release surfaces 13a and 23a) have substantially no adhesive force. Having substantially no adhesive force means having no adhesive force at all, or generally not having an adhesive force acceptable for a tack label.
On the other hand, in the range where the release agent layers 13 and 23 are not provided (region between adjacent release agent layers), the surfaces of the adhesive layers 12 and 22 (adhesive surfaces 12a and 22a) are exposed.
Therefore, on the inner surfaces of the upper sheet 1 and the lower sheet 2, the strip-shaped adhesive surfaces 12 a and 22 a extending in one direction X and the strip-shaped peeling surfaces 13 a and 23 a are alternately exposed in the other direction Y.

  Then, the upper sheet 1 and the lower sheet 2 are disposed so that the adhesive surface 12a of the upper sheet 1 faces the peeling surface 23a of the lower sheet 2 and the peeling surface 13a of the upper sheet 1 faces the adhesive surface 22a of the lower sheet 2. The inner surfaces of the sheet 2 are overlapped with each other.

  The width of the strip-like adhesive surfaces 12a and 22a per one and the width of the peeling surfaces 13a and 23a per one are not particularly limited and can be set as appropriate. Usually, the width of the belt-like adhesive surfaces 12a and 22a and the width of the peeling surfaces 13a and 23a are 2 to 10 mm, preferably 2 to 7 mm, respectively.

  In one embodiment, the width of the adhesive surface 12a of the upper sheet 1 and the width of the peeling surface 23a of the lower sheet 2 are formed to be substantially the same. Similarly, the width of the peeling surface 13a of the upper sheet 1 and the width of the adhesive surface 22a of the lower sheet 2 are formed substantially the same. This is because when the upper sheet 1 and the lower sheet 2 are overlapped, a part of the adhesive surface 12a of the upper sheet 1 and a part of the adhesive surface 22a of the lower sheet 2 do not face each other. When a part of the adhesive surfaces 12 and 22a face each other in this manner, the adhesive surfaces in the part strongly adhere to each other, and thus there is a possibility that the upper sheet 1 and the lower sheet 2 cannot be peeled off favorably during use.

  Since it is easy to form, it is preferable that the release surface 13a of the upper sheet 1 and the release surface 23a of the lower sheet 2 have substantially the same width. For the same reason, the adhesive surface 12a of the upper sheet 1 and the adhesive surface 22a of the lower sheet 2 are preferably substantially the same width.

  Further, as described above, the width of the adhesive surface 12a of the upper sheet 1 and the width of the peeling surface 23a of the lower sheet 2, and the width of the peeling surface 13a of the upper sheet 1 and the width of the adhesive surface 22a of the lower sheet 2 If they are formed in substantially the same manner, the upper sheet 1 and the lower sheet 2 are theoretically not disturbed. However, it may be difficult in mechanical manufacturing to superimpose the upper sheet 1 and the lower sheet 2 so as not to be displaced at all. For example, when the two sheets are overlapped, a slight positional deviation may occur in the width direction. In such a case, the side end of the adhesive surface 12a of the upper sheet 1 and the side end of the adhesive surface 22a of the lower sheet 2 can come into contact with each other. Therefore, since the adhesives of the upper sheet 1 and the lower sheet 2 adhere to each other, there is a possibility that the upper sheet 1 and the lower sheet 2 cannot be easily peeled off.

In order to prevent such a problem in advance, in another embodiment, the width of the peeling surface 13a of the upper sheet 1 is formed slightly longer than the width of the adhesive surface 22a of the lower sheet 2, and the lower sheet The width of the second peeling surface 23 a is slightly longer than the width of the adhesive surface 12 a of the upper sheet 1.
When formed in this way, when the upper sheet 1 and the lower sheet 2 are overlapped, as shown in FIG. 2, both side ends of the release surface 13a of the upper sheet 1 and both sides of the release surface 23a of the lower sheet 2 The edges overlap. For this reason, even if both the sheets 1 and 2 are displaced, it can prevent that the adhesive of both the sheets 1 and 2 adheres.

  Therefore, when the width of the adhesive surface is “W2” and the width of the release surface is “W3”, usually W2 ≦ W3. Further, when one adhesive surface and one peeling surface adjacent to it are taken as one unit, the units are arranged in parallel in the sheet width direction so that the width (W2 + W3) of one unit is repeated invariably. The

  The number of the strip-shaped adhesive surfaces 12a and 22a and the peeling surfaces 13a and 23a is not particularly limited, and is appropriately set according to the size of the label. Usually, these numbers are each 2 or more, preferably 3 or more, more preferably 4 or more.

  The thickness of the release agent layers 13 and 23 is not particularly limited. However, if the release agent layers 13 and 23 are too thick, the level difference (step difference = height difference Z between the adhesive surfaces 12a and 22a and the release surfaces 13a and 23a = the thickness of the release agent layer) increases. There is a possibility that the striped pattern appearing on the outer surface of the lower sheet 2 cannot be sufficiently suppressed. On the other hand, if the thickness is too thin, the release agent layers 13 and 23 cannot sufficiently conceal the adhesive force of the adhesive. From this viewpoint, the thickness of the release agent layers 13 and 23 is preferably 0.1 μm to 10 μm, more preferably 0.3 μm to 8 μm, and particularly preferably 0.5 μm to 5 μm. In addition, for the same reason as the pressure-sensitive adhesive layers 12 and 22, it is preferable that the thicknesses of the release agent layers 13 and 23 are respectively substantially uniform (that is, at any location in the plane of the base film 11 or 21). Also, it is preferable that the release agent layers 13 and 23 have substantially the same thickness).

The release agent layers 13 and 23 can be formed by applying a release agent to predetermined ranges on the inner surfaces of the base films 11 and 21 provided with the adhesive layers 12 and 22, respectively.
As the release agent, one that can be pseudo-adhered to the adhesive is used. The pseudo-adhesion refers to a state where the adhesion is so weak that delamination can be performed with a slight force. As the release agent, for example, a silicone resin, a modified silicone resin, a fluorine resin, a polyolefin resin, or a combination of two or more of these, or an acrylic resin, a urethane resin, Alternatively, a two-component curable type to which an ester resin or the like is added, an ionizing radiation curable type, an ultraviolet curable type, a thermosetting type, or the like can be given. Examples of the method for applying the release agent include a gravure printing method, a flexographic printing method, a letterpress printing method, and a letterpress rotary printing method.
In general, the release agent (particularly a release agent containing silicone) is difficult to adhere directly to the surfaces of the pressure-sensitive adhesive layers 12 and 22. For this reason, it is preferable to provide the anchor coat layers 14 and 24 on the surface of the pressure-sensitive adhesive layer in the range where the release agent is applied. That is, the anchor coat layers 14 and 24 are provided in a predetermined range on the surfaces of the pressure-sensitive adhesive layers 12 and 22, and the release agent layers 13 and 23 are applied by overlapping the release agent on the surfaces of the anchor coat layers 14 and 24. Can be reliably formed within a predetermined range.

As a material for forming the anchor coat layers 14 and 24, an anchor coat agent capable of forming a film having excellent cohesive force is preferable. Examples of the material for forming the anchor coat layers 14 and 24 include urethane resins, acrylic resins, ester resins, and resins having an amino group in the molecule. The anchor coat layers 14 and 24 can be formed by applying a solution containing these resins on the surface of the pressure-sensitive adhesive layers 12 and 22.
When the anchor coat layers 14 and 24 are provided, the thickness is preferably as thin as possible. Since the release agent layers 13 and 23 are laminated on the surfaces of the anchor coat layers 14 and 24, the level difference (the height difference Z between the adhesive surfaces 12a and 22a and the release surfaces 13a and 23a) is determined by the thickness of the anchor coat layer + the release agent. It becomes the thickness of the layer. For this reason, the level | step difference can be made small, so that the anchor coat layers 14 and 24 are thin. On the other hand, if the anchor coat layers 14 and 24 are too thin, the functions of the layers may not be sufficiently exhibited. From this viewpoint, the thickness of the anchor coat layers 14 and 24 is preferably 0.1 μm to 5 μm, and more preferably 0.5 μm to 3 μm.

The laminated label 10 can be obtained, for example, by the following manufacturing method.
As shown to Fig.4 (a), the design printing showing the desired design displays 71 and 72 is given to the outer surface of the elongate base film 5. FIG.
The design display 71 in the upper region and the design display 72 in the lower region of the fold line 6 are upside down with the fold line 6 extending in the longitudinal direction at the approximate center in the width direction of the base film 5. In addition, it is printed in the opposite direction. The upper area of the fold line 6 is the upper sheet and the lower area is the lower sheet. By printing the design indications 71 and 72 in the upside down direction as described above, the designs of the upper sheet and the lower sheet are in the same direction in a state where both sheets are overlapped. Therefore, when affixing each sheet to the adherend, after peeling off the upper sheet 1 and the lower sheet 2 from the laminated label 10 using a labeler (label mounting apparatus), There is no need to reverse it. Therefore, both the peeled sheets 1 and 2 can be simultaneously stuck on the adherend supplied from two lines. However, the printing directions of the design displays 71 and 72 may be the same, may be reversed upside down, or may be reversed left and right.

Next, a pressure-sensitive adhesive is applied to the entire inner surface of the substrate film 5 to form a pressure-sensitive adhesive layer. Thereafter, on this pressure-sensitive adhesive layer, an anchor coat agent is applied in multiple stages in the width direction so as to extend in a band shape in the longitudinal direction, thereby forming a plurality of band-shaped anchor coat layers in a plan view. Further, a release agent is applied so as to overlap the anchor coat layer, and a plurality of strip-like release agent layers in a plan view are arranged in parallel in the width direction. FIG. 4B is a plan view seen from the inner surface side of the base film 5 (that is, a rear view of the base film 5). The shaded area represents the exposed surface.
In addition, the formation position of the strip-shaped release agent layer is a position where the surface (release surface) of the release agent layer faces the surface (adhesive surface) of the adhesive layer when the base film 5 is folded at the fold line 6. Set to

  Next, the base film 5 is folded at the fold line 6 so that the release surface and the adhesive surface overlap. Finally, as shown in FIG. 4C, the base film 5 folded in the longitudinal direction is parallel to the fold line 6 and along the cutting line 8 at a position slightly above the fold line 6. Disconnect.

  Thus, as shown in FIG.1 and FIG.2, the said laminated label 10 with which the upper sheet | seat 1 and the lower sheet | seat 2 were piled up in the state which faced the adhesive surfaces 12a and 22a and the peeling surfaces 23a and 13a. Obtainable. Since the laminated label 10 has a long shape, it is usually wound in a roll shape for storage and distribution. The laminated label 10 of the present invention is not limited to a long shape, and the laminated label 10 (a laminated label in which a plurality of labels are continuously connected in the longitudinal direction) formed into a long shape at the time of manufacture is a group of designs. After being cut for each display to form a sheet-like laminated label, it may be stored and distributed. The cutting line 9 when cutting for each design display is also shown in FIG.

When the upper label 1 and the lower sheet 2 are peeled off from the laminated label 10, a plurality of strip-shaped adhesive surfaces 12 a and 22 a are exposed on the inner surfaces of the upper sheet 1 and the lower sheet 2, respectively. The upper sheet 1 and the lower sheet 2 can be respectively attached to the adherend through the adhesive surfaces 12a and 22a.
In the laminated label 10, the pressure-sensitive adhesive layers 12 and 22 are provided in a solid shape on the inner surfaces of the upper sheet 1 and the lower sheet 2, and the release agent layers 13 and 23 are provided on the surfaces of the pressure-sensitive adhesive layers 12 and 22. Yes. Since the release agent layers 13 and 23 are relatively thin, the level difference (the height difference Z between the adhesive surfaces 12a and 22a and the release surfaces 13a and 23a) on the inner surfaces of the upper sheet 1 and the lower sheet 2 is small.
Therefore, when the upper sheet 1 and the lower sheet 2 of the present invention are attached to the adherend, it is possible to suppress the appearance of a striped pattern on the outer surface of the sheet.

In addition, the laminated label of this invention is not restricted to the form shown above, It can change suitably. Hereinafter, although the modified example of this invention is demonstrated, about the structure similar to the said embodiment, the description is abbreviate | omitted and a term and a code | symbol are used.
In the laminated label 10 of the above embodiment, the upper sheet 1 and the lower sheet 2 are separated and independent. For example, one side edge of the upper sheet 1 and the other side edge of the lower sheet 2 are connected. It may be a laminated label. As shown in FIG. 6, such a laminated label 10 is provided with a solid adhesive layer on the entire inner surface of the base film 51, and a release agent layer is formed on the adhesive layer with a predetermined interval in the width direction. One base film arranged side by side is folded at the fold line 61 so that the adhesive surface and the release surface face each other. In the laminated label 10, in the base film 51 folded at the fold line 61, a region from the fold line 61 to one side edge corresponds to the upper sheet 1, and a region from the fold line 61 to the other side edge is lower. Corresponding to the side sheet 2, the adhesive surface 12 a of the upper sheet 1 faces the peeling surface 23 a of the lower sheet 2, and the peeling surface 13 a of the upper sheet 1 faces the adhesive surface 22 a of the lower sheet 2.
In the laminated label 10 according to this modified example, as in the above embodiment, after the anchor coat layers 14 and 24 are provided on the adhesive layers 12 and 22, the anchor coat layers 14 and 24 are provided on the anchor coat layers 14 and 24. It is preferable to provide release agent layers 13 and 23.

  Further, in the laminated label 10 of the above embodiment, the release agent layers 13 and 23 of the upper sheet 1 and the lower sheet 2 are coated in a band shape (that is, the release surfaces 13a and 23a of both sheets 1 and 2). And the adhesive surfaces 12a and 22a are alternately provided in a stripe pattern), but the coating pattern of the release agent layers 13 and 23 of both sheets 1 and 2 is not limited to a band in a plan view. In the laminated label of the present invention, when both sheets 1 and 2 are overlapped, the peel surface 13a of the upper sheet 1 faces the adhesive surface 22a of the lower sheet 2, and the adhesive surface 12a of the upper sheet 1 is the lower sheet. It is only necessary that the release agent layers 13 and 23 be provided on the adhesive layers 12 and 22 of both sheets 1 and 2 on the condition that the two release surfaces 23a face each other. For example, as shown in FIG. 7, on the pressure-sensitive adhesive layer 12 of the upper sheet 1, a release agent layer 13 having a substantially rectangular shape in plan view is arranged in parallel at a predetermined interval in one direction and the other direction of the sheet. (The range in which the release agent layer is provided is indicated by shading). In the case of this illustrated example, the adhesive surface 12a and the release surface 13a having a rectangular shape in plan view are alternately exposed on the inner surface of the upper sheet 1 in one direction and the other direction. In FIG. 7, only the upper sheet is shown, but the same applies to the lower sheet (not shown).

  In the laminated label 10 of the above embodiment, the peeling surfaces 13a and 23a of the upper sheet 1 and the lower sheet 2 are overlapped corresponding to the adhesive surfaces 12 and 22a, respectively, but the upper sheet 1 and the lower sheet 2 are overlapped. Both sheets 1 and 2 may be overlapped so that some of the peeling surfaces 13a and 23a face each other.

  The laminated label of the present invention can be used as a tack label to be attached to various products such as a packaging box, a packaging bag, a beverage container, and a food container.

  DESCRIPTION OF SYMBOLS 1 ... Upper sheet, 11 ... Base film of upper sheet, 12 ... Adhesive layer of upper sheet, 12a ... Adhesive surface of upper sheet, 13 ... Release agent layer of upper sheet, 13a ... Release surface of upper sheet, 14 ... Anchor coating layer of upper sheet, 2 ... lower sheet, 21 ... base film of lower sheet, 22 ... adhesive layer of lower sheet, 22a ... adhesive surface of lower sheet, 23 ... release agent of lower sheet Layer, 23a ... peeling surface of the lower sheet, 24 ... anchor coat layer of the lower sheet, 10 ... laminated label

Claims (3)

An upper sheet in which the adhesive surface and the release surface are alternately exposed, and a lower sheet in which the adhesive surface and the release surface are alternately exposed,
The upper sheet and the lower sheet are overlapped so that the adhesive surface of the upper sheet faces the release surface of the lower sheet, and the adhesive surface of the lower sheet faces the release surface of the upper sheet. In the laminated label
The upper sheet and the lower sheet in which the adhesive surface and the release surface are alternately exposed are provided with a solid adhesive layer on the inner surface side, and a plurality of release agent layers are spaced on the surface of the adhesive layer. Laminated labels that are formed by arranging them side by side.   The laminated label according to claim 1, wherein each of the release agent layers of the upper sheet and the lower sheet has a thickness of 0.1 μm to 10 μm.   The laminated label according to claim 1 or 2, wherein an anchor coat layer is provided on the surface of the pressure-sensitive adhesive layer corresponding to a range in which the release agent layer is provided.

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