JP2003345255A - Falsification preventive label and method for manufacturing alteration preventive label - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a falsification preventive label which permits recognition of a place stripped of the falsification preventive label and prevents a tacky adhesive from remaining on an adherend. <P>SOLUTION: The falsification preventive label 1 is formed by providing the rear surface of a transparent film 2 with a release layer 3 having releasability, forming a printing layer 4 so as to cover the rear surface of the transparent film 2 and the release layer 3, forming a cushion layer 5 having cushion and film properties on the printing layer 4, and forming a tacky adhesive layer 6 on the cushion layer 5. When the falsification preventive label 1 is stuck and is peeled, the release layer 3 peels from the transparent film 2 and the printing layer 4a formed on the release layer 3 is floated and stripped from the printing layer 4b formed on the other transparent film 2 and the floated and stripped release layer 3 and printing layer 4a stay between the cushion layer 5 and the transparent film 2. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a label that can be peeled off without leaving an adhesive on the adherend (the surface of the material to which the label is attached).

[0002]

2. Description of the Related Art Conventionally, there has been a tamper-proof label which guarantees that there is no fact of opening for the purpose of preventing tampering of contents stored in a container or the like. Conventionally, as such a label, when the label is peeled from the adherend such as a container to which the label is attached, a part of the printing layer and the adhesive layer remain on the adherend side, and both the label and the adherend are attached. Those that remain after the label is peeled off are widely used.

The label structure will be described with reference to FIG. FIG. 7A is a block diagram of a conventional tampering prevention label. As shown in FIG. 7A, a conventional tampering prevention label
101 is a release layer having a release property on the back surface of the transparent film 102.
103 is printed, a printing layer 104 is formed so as to cover the back surface of the transparent film 102 and the release layer 103, and an adhesive layer 105 is formed on the printing layer.
Is formed.

As shown in FIG. 7B, when the tampering prevention label 101 is attached to the adherend 106 and peeled off, the peeling layer 103 is peeled off from the transparent film 102 and formed on the peeling layer 103. Print layer 104a and adhesive layer formed on print layer 104a
105a is a print layer 104 formed on the back surface of the transparent film 102.
b and the adhesive layer 105b formed on the printed layer 104b are cut off and left on the adherend 106.

As a result, the tamperproof label 101 after being peeled off can recognize that the tampering preventive label 101 has been peeled off, and the printing layer left on the adherend 106 can be recognized. It is possible to know that the tampering prevention label 101 that has been stuck is peeled off also by 104a.

[0006]

However, when the tampering prevention label as described above is used, there is a risk that residual pieces of the adhesive remaining on the adherend side may be mixed in the contents, especially in beverages, There is a problem that it is not suitable for use in containers for foods, pharmaceuticals, cosmetics and the like. There is also a problem that the residual pieces attached to the container side impair the appearance of the container, and the adhesiveness of the residual pieces causes dust to adhere.

Therefore, it is an object of the present invention to provide a tampering prevention label which can recognize that the tampering prevention label has been peeled off and which does not leave an adhesive on the adherend.

[0008]

In order to solve the above-mentioned problems, the tamper-proof label according to the present invention has a peelable release layer printed on the back surface of a transparent film and covers the back surface and the release layer of the transparent film. A tamper-proof label comprising a print layer formed as described above, a cushion layer having a cushioning property and a film property formed on the print layer, and an adhesive layer formed on the cushion layer. When affixed and peeled off, the release layer is released from the transparent film and the print layer formed on the release layer is lifted off from the print layer formed on another transparent film, and the lifted release layer and The printing layer is retained between the cushion layer and the transparent film.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION [First Embodiment] An embodiment of a tampering prevention label according to the present invention will be described with reference to the drawings. FIG. 1 is an explanatory diagram of a usage state of the tampering prevention label according to the present embodiment.

As shown in FIG. 1, the tampering prevention label 1 of the present embodiment guarantees that there is no opening fact for the purpose of preventing tampering of contents contained in containers such as beverages, foods, pharmaceuticals and cosmetics. The container A is formed into various shapes such as a strip shape and a square shape, and has a lid A1 and a container body A2 of the container A.
It is used by being attached to the entire circumference of the separation layer A3 of the container B or a part of the separation layer B3 of the cap B1 of the container B and the container body B2.

The label structure will be described with reference to FIG. As shown in FIG. 2, the tamper-proof label 1 has a peeling layer 3 having peelability printed on the back surface of the transparent film 2 and a printing layer 4 that covers the back surface of the transparent film 2 and the peeling layer 3.
Is formed, a cushion layer 5 having a cushioning property and a filming property is formed on the printed layer 4, and an adhesive layer 6 is formed on the cushion layer 5. Further, the surface of the transparent film 2 may be subjected to a special mat processing.

The transparent film 2 is a double-sided in-line film-forming easy-adhesion coat treated product formed of a transparent polymer film of vinyl, polypropylene, polystyrene or the like, and the surface can be original printed.

The peeling layer 3 is made of UV (ultraviolet curing type) silicone resin. The release layer 3 is made of silicone, Teflon (registered trademark), matte particles, oils and fats typified by acrylic esters of higher alcohols such as stearyl acrylate, cellulose esters typified by nitrocellulose, and ethers. You may form.
A plurality of release layers 3 are formed in a pattern such as "opened" at predetermined intervals by letterpress printing, flexo printing, screen printing, or the like.

The print layer 4 is a print that appears when the tampering prevention label 1 attached to the containers A and B is peeled off. The pattern display of the peeling layer 3 that is peeled off when the tampering prevention label 1 is peeled off. To do.

The cushion layer 5 is formed by applying or laminating a coating layer which can be treated on the same line by using UV resin or means such as hot melt or dry laminating. As the cushion layer 5, a urethane acrylate type, a polyester acrylate type, a polymer acrylic monomer solution, or the like is used. These urethane acrylate-based, polyester acrylate-based, polymer acrylic monomer dissolved products and the like have the characteristic that after application, they solidify with a contracting tension, and when a part is peeled off, this part contracts and the elasticity changes irreversibly.

The adhesive layer 6 is formed by applying various adhesives having rubber elasticity on the printed layer 4. Also,
The adhesive layer 6 has a base material of a double-sided adhesive tape having a base material of 4 to
Also good as a 50μ film. Depending on the adherend, the pressure-sensitive adhesive property of the double-sided pressure-sensitive adhesive tape having the pressure-sensitive adhesive or the substrate can be changed.

As shown in FIG. 3, a lid B1 which is an adherend.
When the tampering prevention label 1 attached to a part of the separation layer B3 between the container body B2 and the container body B2 is peeled off, the peeling layer 3 is peeled from the transparent film 2 and the printing layer 4 formed on the peeling layer 3 is peeled off.
a is cut from the printing layer 4b formed on the back surface of the transparent film 2. Then, the peeled release layer 3 is peeled off from the adherend together with the tampering prevention label 1 in a state of biting into the cushion layer 5 due to the film property and cushioning property of the cushion layer 5.

As shown in FIG. 4, in the tamper-proof label 1 after peeling, the peeling layer 3 and a part of the printing layer 4a overlapping the peeling layer 3 are transparent due to the irreversible elastic deformation of the cushion layer 5. By peeling from the film 2 and shrinking the cushion layer 5, a gap S is generated between the transparent film 2 and the peeling layer 3, and the positions of the printing layers 4a and 4b from the transparent film 2 are displaced. That is, the region where the peeling layer 3 is provided (printing layer 4a) becomes semitransparent, and the region where the peeling layer 3 is not provided (printing layer 4b) remains in a perfect state, such as "opened" where the peeling layer 3 is formed. Pattern appears. This makes it possible to recognize that the tampering prevention label 1 that has been peeled off once is peeled off even if it is reattached to the adherend, and the adhesive layer 6, the printing layer 4a,
The release layer 3 does not remain.

Thus, when the tamperproof label 1 is attached and peeled off, the peeling layer 3 is peeled from the transparent film 2 and the printing layer 4a formed on the peeling layer 3 is formed on the other transparent film 2. The tamper-proof label 1 is configured such that the tamper-proof label 1 is separated from the printed layer 4b that has been formed, and the printed layer 4a that has been separated is retained between the cushion layer 5 and the transparent film 2.
It is possible to provide the tampering prevention label 1 which can recognize that the adherend has been peeled off and can keep the appearance of the adherend hygienic without leaving an adhesive on the adherend.

Next, a method of manufacturing the tampering prevention label 1 will be described. On the back surface of the transparent film 2, a release layer 3 made of a component having a releasing effect is printed. The necessary number of colors (printing layer 4) is printed so as to cover the peeling layer 3, and UV resin having cushioning properties and film properties so as to cover the printing layer 4 or the same is used by means such as hot melt or dry laminating. A coating layer (cushion layer 5) that can be treated on the line is applied or laminated. Then, an adhesive (adhesive layer 6) is applied so as to cover the cushion layer 5.

A release paper or a release film is laminated on the adhesive layer 6, and the surface side (transparent film 2 side) is pulled out with a punching blade of a required shape (the blade is inserted up to the adhesive layer 6).
Then, the unnecessary matte film is removed and trace processing is performed according to the delivery form such as slits and sheet cuts.

[Other Embodiments] Next, other embodiments of the tampering prevention label according to the present invention will be described with reference to the drawings.
FIG. 5 is a cross-sectional view of the tampering prevention label according to this embodiment. The same parts as those of the first embodiment will be designated by the same reference numerals and the description thereof will be omitted.

As shown in FIG. 5, the tampering prevention label 11 according to the present embodiment has a transparent film 12, a peeling layer 13 and a printing layer 14 in place of the transparent film 2, the peeling layer 3 and the printing layer 4, and a transparent film. Boundary surface H between 12 and release layer 13 and printing layer 14
In addition, the irregularities such as a satin pattern are formed.

By forming a satin pattern on the boundary surface H in this way, when the tampering prevention label 11 is peeled off and a gap S is formed between the transparent film 12 and the peeling layer 13, the peeling layer 13 is peeled off. The display in the area not provided (printing layer 14b) does not change, whereas the area in which the release layer 13 is provided (printing layer 14a)
The transparency of is reduced. Thereby, the pattern such as "opened" in which the peeling layer 13 is formed can be recognized more clearly.

If the purchaser cannot be informed that the tampering prevention label 1 is attached to the product, as shown in FIG. 6, the tampering prevention label 1 of the container B is "opened" or the like at the attachment position. The character 15 of may be displayed supplementarily.

[0026]

As described above, the tamperproof label is printed on the back surface of the transparent film with a peeling layer having peelability, and a printing layer is formed so as to cover the back surface and the peeling layer of the transparent film, and the printing is performed. When a cushion layer having a cushioning property and a filming property is formed on the layer, and the tamper-proof label is attached and peeled off, the release layer is peeled off from the transparent film and the printing layer formed on the release layer is The printed layer formed on the transparent film was peeled off, and the printed layer thus peeled off remained between the cushion layer and the transparent film.

Thus, the tamperproof label can recognize that the tamperproof label has been peeled off, and that the adhesive is not left on the adherend and the appearance of the adherend can be kept hygienic. Can be provided.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a usage state of a tampering prevention label according to a first embodiment.

FIG. 2 is a sectional view of a tampering prevention label.

FIG. 3 is a diagram illustrating deformation of the tampering prevention label when the tampering prevention label is peeled off.

FIG. 4 is a cross-sectional view of the tamperproof label after being peeled off.

FIG. 5 is a cross-sectional view of a tamperproof label after peeling according to another embodiment.

FIG. 6 is an explanatory diagram of a usage state of a tampering prevention label.

FIG. 7 is an explanatory diagram of a conventional tampering prevention label.

[Explanation of symbols]

A, B ... Container A1 ... Lid A2, B2 ... Container body A3, B3 ... Separation layer B1 ... Cap 1 ... Tamper proof label 2 ... Transparent film 3 ... Release layer 4, 14 ... Printing layer 5 ... Cushion layer 6 ... Adhesive layer 11… Tamper proof label 12… Transparent film 13 ... Peeling layer 15… letters

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Claims (4)

[Claims] 1. A release layer having release properties is printed on the back surface of a transparent film, a print layer is formed so as to cover the back surface and release layer of the transparent film, and the print layer has cushioning properties and film properties. A tamper-proof label comprising a cushion layer and an adhesive layer formed on the cushion layer,
When the tamper-proof label is attached and peeled off, the peeling layer peels off from the transparent film, and the printing layer formed on the peeling layer floats off from the printing layer formed on another transparent film, A tamperproof label, characterized in that the peeled release layer and the printed layer remain between the cushion layer and the transparent film. 2. The tamperproof label, wherein the cushion layer is formed of urethane acrylate-based, polyester acrylate-based, or a polymer acrylic monomer solution. 3. A tamperproof label, wherein the boundary surface between the transparent film, the peeling layer and the printing layer is uneven. 4. A release layer having a release property is printed on the back surface of the transparent film, a print layer is formed so as to cover the back surface and the release layer of the transparent film, and the print layer has cushioning properties and film properties. A method for producing a tamperproof label, comprising forming a cushion layer and forming an adhesive layer on the cushion layer.