JPH0830202A - Resticking preventive label - Google Patents

Abstract

PURPOSE:To make the label usable as a price tag label and to prevent illicit use thereof by including a base material, a flocculation destruction layer which is formed on the rear surface of the base material and causes flocculation destruction at the time of peeling the base material and a tacky adhesive layer on the rear surface of the flocculation destruction layer. CONSTITUTION:The flocculation destruction layer 14 for preventing resticking is formed on the rear surface of the front surface base material 12. The tacky adhesive layer 16 to be adhered on an adhered is formed on the rear surface of the flocculation destruction layer 14. An acrylic tacky adhesive is used as the tacky adhesive layer 16. The respective layers are so designed as to satisfy a<d, b>d, c>d when the adhesive power between the front surface base material 12 and the flocculation destruction layer 14 is defined as a, the adhesive power between the flocculating destruction layer 14 and the tacky adhesive layer 16 as b, the adhesive power between the tacky adhesive layer 16 and the adherend as c and the flocculating power of the flocculation destruction layer 14 as d. Then, the flocculation destruction layer 14 eventually initiates the flocculation destruction in the case of peeling of the resticking preventive label 10. The resticking preventive function is thus exhibited.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a re-attachment prevention label, and more particularly, to a re-attachment prevention label that cannot be re-attached once peeled off.

[0002]

2. Description of the Related Art FIG. 7A is a schematic sectional view showing an example of a conventional re-attachment prevention label which is the background of the present invention. As a conventional replacement prevention label 1, for example, Japanese Patent Publication No. 5-8
No. 7837 is disclosed. This re-attachment prevention label is provided between the transparent film surface material 2 and the transparent pressure-sensitive adhesive layer 3,
A transparent in-layer peelable resin layer 4 is interposed. The in-layer peelable resin layer 4 is formed by mixing a resin binder and a powder filler, and the mixing ratio thereof is 10 to 150 parts by weight of the powder filler with respect to 100 parts by weight of the resin binder. Since this reattachment prevention label 1 is entirely transparent, it can be seen through even if it is attached to the upper surface of the surface of the adherend A for displaying photographs and characters. Then, in the case of peeling off the once stuck one, it is torn from the inside of the in-layer peelable resin layer 4 and peeled from the adherend. When the transparent film surface material 2 that has been peeled off is to be reattached,
It can be seen that the torn rough surface of the in-layer peelable resin layer 4 does not engage with the original state and air intervenes between the rough surfaces facing each other, so that it appears whitish and is re-adhered. . Therefore, such a conventional replacement prevention label 1
Is used to prevent falsification of passports, for example.

[0003]

However, the replacement prevention label 1 as described above cannot be used as a price tag label. That is, since the price tag label needs to display information such as the amount of money on the surface, it is necessary that the label itself has a concealing property. However, since the conventional re-attachment prevention label 1 is entirely transparent, the characters on the surface of the adherend are seen through and the information such as the amount of money is complicated. Further, as shown in FIG. 7 (A), when the reattachment prevention label 1 is attached to an adherend A having irregularities such as a cardboard, a portion of the recess 5 that is not adhered is generated. Then, in that portion, as shown in FIG.
When peeled off, the transparent pressure-sensitive adhesive layer 3 remains on the back surface side of the transparent film surface material 2. In this case, since the transparent film surface material 2 can be reattached, it could be abused. Further, with the conventional mixing ratio of the resin binder and the powder filler forming the in-layer releasable resin layer 4, since the tackiness remains after peeling, re-adhesion was possible. In this case, there is a possibility that the price tag label having a low face value may be re-attached to an expensive product and illegally used. For these reasons, the above replacement prevention label 1 cannot be used as a price tag label.

Therefore, a main object of the present invention is to provide a replacement preventive label that can be used as a price tag label and can prevent unauthorized use.

[0005]

The re-sticking label according to the present invention comprises a base material, a cohesive failure layer which is formed on the back surface of the base material and undergoes cohesive failure when the base material is peeled off, and a back surface of the cohesive failure layer. It is a re-attachment prevention label including a formed pressure-sensitive adhesive layer.
Further, a penetration preventing layer may be formed between the cohesive failure layer and the pressure-sensitive adhesive layer to prevent the pressure-sensitive adhesive from penetrating into the cohesive failure layer. Furthermore, the cohesive failure layer is powder filler 1
It is preferable to mix and disperse the resin binder in an amount of 2 to 40 parts by weight with respect to 00 parts by weight to form the resin binder.

[0006]

The base material of the re-sticking prevention label according to the present invention has a concealing property. Due to the adhesive layer, the replacement prevention label,
It is attached to the adherend. The cohesive failure layer undergoes cohesive failure when the substrate is peeled off. The cohesive failure layer that has undergone cohesive failure covers the back surface of the base material after peeling and the surface of the adhesive material layer after peeling. Further, when the seepage prevention layer is formed, the cohesive failure layer is prevented from soaking into the cohesive failure layer, and the cohesive failure layer is surely cohesively destroyed at the time of peeling of the reattachment prevention label.

[0007]

According to the replacement prevention label of the present invention, since the base material has a concealing property, it can be used as a price label by displaying the amount of money on the surface of the base material. Then, when peeling off the re-sticking label that has been once attached, since the base material is peeled off by cohesive failure of the cohesive failure layer, the adhesive layer does not remain on the base material, and
The surface of the pressure-sensitive adhesive layer is covered with the cohesive failure layer. Therefore,
The re-sticking preventive label of the present invention cannot be re-sticked once it has been stuck and peeled off, thus preventing unauthorized use. Further, by forming the seepage preventing layer between the cohesive failure layer and the pressure-sensitive adhesive layer, penetration of the pressure-sensitive adhesive into the cohesive failure layer is prevented. By preventing the pressure-sensitive adhesive from soaking into the cohesive failure layer, the cohesive failure layer is surely cohesively destroyed and re-adhesion of the substrate is prevented. Also, for example, when the reattachment prevention label is attached to an adherend A having corrugations such as cardboard, the cohesive failure layer is surely cohesively destroyed, and when the base material is peeled off, the back surface side of the base material is removed. The adhesive layer does not remain. Therefore, once attached and peeled off, it cannot be attached again, and unauthorized use is prevented. Further, the cohesive failure layer is added to the resin binder 2 to 40 with respect to 100 parts by weight of the powder filler.
When it is dispersed and formed with a mixture of parts by weight, it is prevented from being unintentionally peeled off against the intention of the user, and the re-adhesion is surely prevented after the peeling.

The above objects, other objects, features and advantages of the present invention will become more apparent from the following detailed description of the embodiments with reference to the drawings.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic sectional view showing an embodiment of the present invention. FIG. 2 is a perspective view showing the usage state.
The replacement prevention label 10 includes a surface base material 12 having a concealing property. In this embodiment, the surface base material 12 is made of high-quality paper, for example. The surface of the surface base material 12 is printed, for example, for displaying the price of a product or the like.

A cohesive failure layer 14 for preventing re-sticking is formed on the back surface of the front surface substrate 12. The cohesive failure layer 14 is
It consists of a synthetic resin binder and a powder filler. At this time, when the amount of the synthetic resin binder is less than 2 parts by weight, the adhesion of the cohesive failure layer 14 to the surface base material 12 is insufficient, and the peeling occurs between the surface base material 12 and the cohesive failure layer 14. There is a risk of inconvenience. Further, when the binder is added in an amount of more than 40 parts by weight, cohesive failure is less likely to occur, and there is a possibility that adhesiveness remains on the fractured surface after peeling. Therefore, the cohesive failure layer 1 of this example
No. 4 is formed by dispersing 2 to 40 parts by weight of a synthetic resin binder in 100 parts by weight of the powder filler. In particular, the composition of the synthetic resin binder is 10 to 30 parts by weight in that it is prevented from being unintentionally peeled off against the intention of the user and the re-adhesion is surely prevented after the peeling. preferable.

On the back surface of the cohesive failure layer 14, a pressure-sensitive adhesive layer 16 for sticking to the adherend A is formed. In the embodiment shown in FIG. 1, an acrylic adhesive is used as the adhesive layer 16. The above-mentioned layers are the surface base materials 12
The adhesive force between the cohesive failure layer 14 and the cohesive failure layer 14 is a, the adhesive force between the cohesive failure layer 14 and the adhesive layer 16 is b, and the adhesive force between the adhesive layer 16 and the adherend A is c, cohesive failure layer 1
When the cohesive force of 4 is d, a> d, b> d, c> d
Are designed to satisfy each. Therefore, when the reattachment prevention label 10 is peeled off, the cohesive failure layer 14 undergoes cohesive failure first, and the reattachment prevention function is exerted. Further, the reattachment prevention label 10 has a release paper 18 temporarily attached to the adhesive layer 16 before attachment. Then, the re-attachment prevention label 10 is
By removing the release paper 18 and exposing the pressure-sensitive adhesive layer 16, it is possible to obtain a stickable state.

Next, the manufacturing method of this embodiment will be described. The surface base material 12 is made of high-quality paper, for example. In order to form the cohesive failure layer 14 on the back surface of the front surface substrate 12,
First, a dispersion is prepared. This dispersion is prepared by dispersing 100 parts by weight of calcined kaolin having an average particle diameter of 2 μm as a powder filler and 15 parts by weight of an acrylic resin as a synthetic resin binder in water. The powder filler and the synthetic resin binder are dispersed by, for example, a mixer. Then, the dispersion liquid is applied to the back surface of the front surface base material 12 by a coating method such as wire bar or gravure printing to have a thickness of 5 μm, for example, to form the cohesive failure layer 14. In the dispersion liquid of the powder filler and the synthetic resin binder,
A small amount of a dispersant for improving dispersibility of the powder filler or preventing sedimentation may be mixed. Also, a small amount of a thickener or an antifoaming agent may be mixed.

The adhesive layer 16 is provided on the back surface of the cohesive failure layer 14.
Is formed. The adhesive layer 16 is formed by an adhesive coater.
The pressure-sensitive adhesive is transferred from the release paper to the back surface of the cohesive failure layer 14 by the transfer method to be formed. In this embodiment, the pressure-sensitive adhesive layer 16 includes an acrylic pressure-sensitive adhesive on the back surface of the cohesive failure layer 14,
For example, it is formed by coating using an adhesive coater so as to have a thickness of 20 μm.

The replacement preventive label 10 thus formed
Was adhered to an adherend A such as a wrapping film for packaging, and the surface base material 12 was peeled off as shown in FIG. 4. As a result, as shown in FIG. 3, the cohesive failure layer 14 was cohesively destroyed. Therefore, the adhesive layer 16 does not remain on the back surface of the front surface substrate 12. The pressure-sensitive adhesive layer 16 remaining on the adherend A is covered with the cohesively broken layer. Therefore, the replacement prevention label 1
Re-adhesion of 0 is impossible, and illegal use such as intentionally replacing a discount label attached to a product with a label having a different discount rate is reliably prevented.

Next, another embodiment of the present invention will be described. In this embodiment, fine paper is used as the surface base material 12. The dispersion liquid for forming the cohesive failure layer 14 was prepared by dispersing 100 parts by weight of calcium carbonate having an average particle diameter of 1 μm as a powder filler and 10 parts by weight of styrene / acrylic resin as a synthetic resin binder in water. To be prepared. Then, the cohesive failure layer 14 is formed by applying this dispersion liquid to the back surface of the front surface base material 12 to a thickness of 5 μm by, for example, gravure printing. An acrylic pressure-sensitive adhesive is used as the pressure-sensitive adhesive layer 16. The pressure-sensitive adhesive layer 16 is formed by applying an acrylic pressure-sensitive adhesive to the back surface of the cohesive failure layer 14 with a thickness of 20 μm using a pressure-sensitive adhesive coater. Also in this embodiment, the same effect as described above can be obtained.

Further, referring to FIG. 5 and FIG.
Another embodiment of the present invention will be described. FIG. 5 is a schematic sectional view showing another embodiment of the present invention, and FIG. 6 is a schematic sectional view showing a state of cohesive failure thereof. The embodiment shown in FIG. 5 includes a surface base material 12, a cohesive failure layer 14, a permeation preventive layer 20, and an adhesive layer 16. The seepage prevention layer 20 is
This is to prevent the adhesive of the adhesive layer 16 from penetrating into the cohesive failure layer 14 and to ensure cohesive failure. That is, when the re-sticking preventive label 10 is used, the adhesive becomes the cohesive failure layer 14 with the passage of time.
It may sink in. In this case, the cohesive failure layer 14 is less likely to undergo cohesive failure, and the reattachment prevention label 10
The intended purpose of may not be achieved. Also,
For example, an adherend A having an uneven surface such as a cardboard
When the label is attached to, the cohesive failure layer 14 may not undergo cohesive failure as in the case shown in FIG. 7B, and the adhesive layer 16 may remain on the back surface of the front surface substrate 12. In this case, the surface base material 12 may be reattached and misused. Therefore, in order to prevent such inconvenience, the seepage prevention layer 20 is provided between the cohesive failure layer 14 and the pressure-sensitive adhesive layer 16.
Is formed. The seepage prevention layer 20 is 1 μm to 20 μm between the cohesive failure layer 14 and the adhesive layer 16 without pinholes.
It is preferable to form a film having a thickness of.

Next, a manufacturing method of the embodiment shown in FIGS. 5 and 6 will be described. The surface base material 12 is made of high-quality paper, for example. Then, a dispersion liquid in which 100 parts by weight of calcium carbonate having an average particle size of 0.9 μm as a powder filler and 10 parts by weight of an acrylic resin as a synthetic resin binder are dispersed in water is prepared. Furthermore, the dispersion liquid is applied to the back surface of the front surface base material 12 to a thickness of 10 μm by gravure printing, whereby the cohesive failure layer 14 is formed. Acrylic resin is applied to the back surface of the cohesive failure layer 14 by gravure printing so as to have a thickness of 5 μm.
The penetration preventing layer 20 is formed. On the back surface of the permeation prevention layer 20, an acrylic pressure-sensitive adhesive is applied by an adhesion coater so that the thickness becomes 20 μm, and the pressure-sensitive adhesive layer 16 is formed. Further, a release paper 18 that can be peeled off at the time of sticking is temporarily attached to the adhesive layer 16.

The replacement preventive label 10 thus formed
The permeation prevention layer 20 prevents the pressure-sensitive adhesive of the pressure-sensitive adhesive layer 16 from soaking into the cohesive failure layer 14. And FIG.
As shown in, even when it is attached to an adherend A having irregularities such as a cardboard, cohesive failure is surely performed. Therefore, after the surface base material 12 is peeled off, the surface base material 1
The back surface of No. 2 is covered with the cohesive failure layer 14, and the pressure-sensitive adhesive layer 16 remaining on the adherend A is the seepage prevention layer 20 and the cohesive failure layer 1.
Covered by 4. Therefore, according to the reattachment prevention label 10, the pressure-sensitive adhesive layer 16 that is not adhered in the recess 5 does not remain on the back surface side of the front surface base material 12, and the front surface base material 12 cannot be reattached. Thus, also in the embodiment shown in FIGS. 5 and 6, the same effect as described above can be obtained, and moreover, in the adherend A such as a corrugated cardboard having an uneven surface,
Even when the replacement prevention label 10 is stuck, illegal use is surely prevented.

The material of the surface base material 12 is not limited to the above, and synthetic resin materials such as polyethylene, polypropylene, polyethylene terephthalate and vinyl chloride may be used.

The powder filler is not limited to those mentioned above, but may be, for example, calcium carbonate, silica, zinc oxide, titanium oxide, aluminum hydroxide, zinc hydroxide, barium sulfate, clay, talc, kaolin, calcined kaolin, Wax stone, diatomaceous earth, magnesium hydroxide, magnesium carbonate, barium carbonate, aluminum oxide, magnesium silicate, urea / formalin resin, styrene / methacrylic acid copolymer, polystyrene resin, cellulose filler, polyolefin particles and the like can be selected. A single substance or a mixture of two or more types may be used.

Further, the synthetic resin binder is not limited to the above-mentioned ones, and examples thereof include Iomer resin, isobutylene / maleic anhydride copolymer resin, acrylonitrile / styrene / special rubber ternary copolymer resin, acrylonitrile / styrene copolymer resin. , Acrylonitrile / butadiene / styrene copolymer resin, acrylonitrile / chlorinated polyethylene / styrene terpolymer resin, butadiene / styrene / methyl methacrylate copolymer resin, methyl methacrylate / butadiene copolymer resin, ethylene / vinyl chloride copolymer resin, ethylene / acetic acid Vinyl copolymer resin, acrylic acid amide / acrylic ester copolymer resin, acrylic acid amide / acrylic ester / methacrylic acid terpolymer resin, styrene / maleic anhydride copolymer resin, styrene /
Butadiene copolymer resin, styrene / acrylic copolymer resin, styrene / butadiene / acrylic copolymer resin, vinyl chloride / vinyl acetate copolymer resin, vinylidene chloride resin,
Vinyl chloride resin, chlorinated vinyl chloride resin, chlorinated polyethylene, chlorinated polypropylene, vinyl acetate resin, butadiene resin, polyacetal, polyamide, polyethylene, polyethylene oxide, polystyrene, polyvinyl alcohol, polyvinyl ether, polyvinyl butyral, polypropylene, methacrylic resin, Epoxy resin, polyester resin, polyurethane, cellulose resin, acrylic resin, polyvinylpyrrolidone, polyacrylamide, nylon resin, chlorinated ethylene vinyl alcohol, ethylene vinyl alcohol, polybutyl methacrylate, polyacrylonitrile, polymethyl methacrylate, styrene butadiene rubber, methacrylate butadiene Rubber, nitrile butadiene rubber, gelatin, casein, starch and the like Conductor such as can be selected, it may be used a mixture of these alone, or two or more.

Further, the material for forming the permeation preventive layer 20 is not limited to the above-mentioned materials, and for example, iomer resin, isobutylene / maleic anhydride copolymer resin, acrylonitrile / styrene / special rubber terpolymer. resin,
Acrylonitrile / styrene copolymer resin, acrylonitrile / butadiene / styrene copolymer resin, acrylonitrile / chlorinated polyethylene / styrene terpolymer resin, butadiene / styrene / methyl methacrylate copolymer resin, methyl methacrylate / butadiene copolymer resin, ethylene / vinyl chloride copolymer Polymerization resin, ethylene / vinyl acetate copolymer resin, acrylic acid amide / acrylic acid ester copolymer resin, acrylic acid amide / acrylic acid ester / methacrylic acid terpolymer resin, styrene / maleic anhydride copolymer resin, styrene / butadiene Copolymer resin, styrene / acrylic copolymer resin, styrene / butadiene / acrylic copolymer resin, vinyl chloride / vinyl acetate copolymer resin, vinylidene chloride resin, vinyl chloride resin, chlorinated vinyl chloride resin, chlorinated polyethylene , Chlorinated polypropylene, vinyl acetate resins, butadiene resins, polyacetal, polyamide, polyethylene, polyethylene oxide, polystyrene, polyvinyl alcohol, polyvinyl ether,
Polyvinyl butyral, polypropylene, methacrylic resin, epoxy resin, polyester resin, polyurethane,
Cellulose resin, acrylic resin, polyvinylpyrrolidone, polyacrylamide, nylon resin, chlorinated ethylene vinyl alcohol, ethylene vinyl alcohol, polybutyl methacrylate, polyacrylonitrile, polymethyl methacrylate, styrene butadiene rubber, methacrylate butadiene rubber, nitrile butadiene rubber, gelatin, Casein, starch and derivatives thereof can be selected, and these may be used alone or in a mixture of two or more kinds.

[Brief description of drawings]

FIG. 1 is a schematic sectional view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing a usage state of the embodiment of FIG.

FIG. 3 is a schematic cross-sectional view showing a state in which the example of FIG. 1 has undergone cohesive failure.

FIG. 4 is a perspective view showing the state of FIG.

FIG. 5 is a schematic sectional view showing another embodiment of the present invention.

FIG. 6 is a schematic sectional view showing a state in which the example of FIG. 5 has undergone cohesive failure.

FIG. 7 (A) is a schematic sectional view showing an example of a conventional re-attachment prevention label which is the background of the present invention, and FIG. 7 (B) is a schematic sectional view showing the peeled state.

[Explanation of symbols]

 10 Reposition Prevention Label 12 Surface Substrate 14 Cohesive Failure Layer 16 Adhesive Layer 18 Release Paper 20 Permeation Prevention Layer A Adherend

Claims (3)

[Claims] 1. A re-sticking label comprising a base material, a cohesive failure layer formed on the back surface of the base material to cohesively break when the base material is peeled off, and an adhesive layer formed on the back surface of the cohesive failure layer. . 2. The reattachment according to claim 1, wherein a penetration preventing layer is formed between the cohesive failure layer and the pressure-sensitive adhesive layer to prevent penetration of the pressure-sensitive adhesive into the cohesive failure layer. Prevention label. 3. The cohesive failure layer is a powder filler 100.
The re-sticking preventive label according to claim 1 or 2, which is prepared by mixing and dispersing the resin binder in an amount of 2 to 40 parts by weight with respect to parts by weight.