JPS61102685A - Indelible label for package - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is intended to prevent intentional opening of product packaging or alteration of labeling during the distribution process, and to ensure the safety of contents and distribution order. regarding tamper-proof labels.

[Problems with conventional technology]

From the standpoint of ensuring safety and hygiene, packaging of foods, beverages, pharmaceuticals, cosmetics, etc. in containers, bags, etc. must be kept securely sealed during the distribution process until it reaches the consumer. Under no circumstances should a situation arise where the seal is broken and substances harmful to the human body are mixed in.

Tape seals, breaker pull caps, sealed cartons, etc. have been proposed as measures to prevent such intentional opening, but these are special sealing formats that not only cost more but also protect the contents. It is often difficult to apply this method depending on the type and nature of the object. Regardless of these special sealing conditions, even if the package is opened with a Tough Label attached to it like a normal package, the opening must be closed again. In many cases, it is impossible to tell that the package has been opened just by looking at the package. Furthermore, even if some scratches remain on the packaging after opening, in cases where children are the main consumers of confectionery, etc., the scratches may not be noticed and the contents may change. 'It is not uncommon for people to eat food without considering whether it is present or not.

Additionally, information regarding the contents (e.g.
Even if a label that is used to indicate ingredients, efficacy, directions for use, etc. is intentionally replaced with another product's label, safety for consumers cannot be guaranteed, and If the label displays the product price or other product management information using a barcode or the like, it becomes impossible to manage sales by computer processing, and it is difficult to maintain order in distribution.

[Problem to be solved by the invention] Even though it is virtually impossible to completely prevent intentional acts such as the packaging being opened or the 11 display label being replaced with another display label during the distribution process, it is possible to If the packaging is provided with measures that allow anyone to easily detect this fact from its appearance, it is possible to prevent unforeseen situations and at the same time to have the effect of deterring intentional acts. It is.

The present invention has been made in view of the above, and when the package is opened or the display label is replaced,
- To provide a tamper-proof label that is useful as a sealing label or display label that allows the fact to be visually recognized.

[Technical means]

The first tamper-proof label according to the present invention includes a base film and a colored ink (A) applied to the upper surface of the base film.
layer, a release agent layer coated on the lower surface of the base film according to a desired pattern, and laminated on the base film with the release agent layer as an intermediate layer.
) layer and a pressure-sensitive adhesive layer coated on the lower surface of the colored ink (B) layer.

The second tamper-proof label according to the present invention includes a base film and a colored ink (A) applied to the lower surface of the base film.
layer, a release agent layer coated on the lower surface of the color ink (A) layer according to a desired pattern, and a color ink (A) layer laminated on the color ink (Δ) layer with the release agent layer as an intermediate layer. It is characterized by having a laminated structure consisting of a colored ink (B) layer having a different hue from layer A, and an adhesive layer coated on the lower surface of the colored ink (B) layer.

[Effect]

The tamper-proof label according to the present invention has a hue that is visible from the top surface when it is normally attached to a package, and a hue that is different once it is peeled off on the entire surface or a part of the label. That is, when the label of the present invention is normally adhered to the surface of a package, it exhibits a mixed color with the color ink (A) layer and the color ink (B) layer, and when it is peeled off from the surface, it exhibits a releasable color. Due to interlayer separation across the agent layer, the color mixing effect is lost in accordance with the coating pattern of the release agent layer, resulting in a change in color on the label. Once it is removed, even if it is reattached, it will not return to its original color and the color change will remain as it is.

The tamper-proof label of the present invention is used as a sealing label or a product information display label. If the label is attached to the seal part of the package as a sealing label, if a change in color is observed on the label, it can be determined that the seal may have been opened.On the other hand, if there is no change in color, It can be confirmed without a doubt that the seal was maintained. In addition, if the label is attached to an appropriate location on the package as a display label, if the label changes color, it can be detected that it may have been replaced with a label for another product. If there is no change in color, it can be determined that the predetermined label is attached.

To explain the tamper-proof label of the present invention in detail with reference to the drawings, in FIG. 1 (showing the layered structure of the first tamper-proofing label), (1) is a base film, (2)
is a color ink (A) layer coated on the upper surface of the base film (1), and (3) is a release agent layer coated on the lower surface of the base film (1).

This figure shows an example in which the release agent layer (3) is provided on the entire lower surface of the base film (1). (4) is the mold release agent layer (3
), and the colored ink (CB) layer (4) has a different hue from the colored ink (A) layer (2). (5) is colored ink (B) layer (4)
This is an adhesive layer that is applied to the entire bottom surface of the . Note that, like ordinary tank labels, the label (10) of the present invention is pasted to a mount (release paper) (not shown) via its adhesive layer (5) before use. It is peeled off from the backing paper when used.

The label (10) of the present invention has, via the adhesive layer (5),
As shown in FIG. 9, it is adhered to a predetermined location on the surface of the package (20). The illustrated package (20) is a box container (2
The label (10) of the present invention is wrapped around the label (1) with a packaging film (22) such as a plastic film.
) is used as a sealing label and adhered to the seal portion of the package (20).

If you look at the label (10) from above when it is normally attached to a predetermined location on the surface of the package, you will notice that the label (10) is colored ink coated on the entire surface of the base film (1). (A) layer (2) and colored ink (B) layer (
4), the label is perceived as having a mixture of both colors over its entire surface.

For example, if the colored ink (A) layer (2) is yellow and the colored ink (
B) When layer (4) is blue, it appears to the eye as a green label.

If you try to peel off the label (10) from the surface of the package (20) by pinching the edge of the base film (1), the label will be released as shown in Figure 2. Glabella separation occurs at the agent layer (3).In other words, the color ink (B) layer (4) on the lower surface of the base film (1) is not adhered to the base film by the release agent layer (3). Because it is blocked, it remains on the surface of the package (20) together with the adhesive layer (4) and is separated from the base film (1) (note that the release agent layer (3) is usually Base film (
1)). For this reason, the peeled label loses the color mixing effect described above, and the color ink (A) layer (2) on the upper surface of the base film (1) has a hue (yellow in the above example).

color). Once a peeled label is pressed to its original position in order to be reattached, although it will stick, it will not be possible to reveal the original mixed color. This is because the peeling surface of the label cannot be sufficiently tightly integrated. In other words, in the label manufacturing process, the release agent layer (3) and the color ink CB layer (4)
) is applied and laminated in a semi-molten state, so they adhere completely, whereas in this case, each layer is solidified,
Moreover, since the peeled surface is roughened, sufficient adhesion is not achieved, and therefore the original color mixing effect cannot be obtained.

There is no limit to the coating pattern of the release agent layer (3) on the base film (1) in the above label (10), and in addition to the pattern of coating the entire lower surface of the base film (1) as described above, It is applied according to any pattern such as , symbols, designs, etc. An example is shown in FIG. The mold release agent layer (3) is
It is coated with a pattern of predetermined characters, symbols, designs, etc., and the colored ink (B5 layer (4) is the release agent layer (3)
At the same time, it is applied directly to the base film (1) in areas where the release agent layer (3) is not present.

After attaching this label (10) to the package (20),
When peeling force is applied, the glabella is separated at the release agent layer (3).

In this case, as shown in FIG. 4, the color ink (CB) layer in the region where the release agent layer (3) does not exist, that is, the color ink (B) layer (in the region in contact with the base film (1))
4) is divided into upper and lower parts within its own layer, and the upper half thereof is attached to the base film (1) and peeled off from the surface of the package (20). Therefore, in the part of the peeled off label where the color ink (B) layer (4) is attached, the color ink (A) layer (2) and the color ink (B) layer (4) are initially mixed. The part of the release agent layer (3) where the color mixing effect is maintained and the color ink (B) layer (4) is not attached is as follows.
The color mixing effect is lost and the colored ink (A) layer (2) exhibits its own hue.

For example, if the words "opened" are drawn on the release agent layer (3), the tone of the colored ink (A) layer (2) (for example, The words "Opened" (yellow) will appear. Even if the label is reattached to its original position, the colored text "opened" that once appeared will not disappear for the reason mentioned above and will remain as it is.

FIG. 5 shows the layered structure of the second tamper-proof label of the present invention. As shown, ink with different hues (A)
Layer (2) and color ink (B) layer (4) are mold release agent layer (3)
is laminated on the lower surface of the base film (1) as an intermediate layer. When this label (1o) is adhered to the surface of the package (20) and then peeled off, it separates between the eyebrows with the release agent layer (3) as a boundary, and as shown in FIG. 6, the colored ink (A) layer ( 2) is associated with the base film (1) and is separated from the surface of the package;
One color ink (B).

The layer (4) remains on the surface of the package (2o) together with the adhesive layer (5).

The release agent layer (3) is coated with colored ink (A) as shown in Fig. 5 above.
Needless to say, in addition to the case in which it is provided so as to be interposed on the entire boundary surface between the layer and the (B) layer, it may also be provided partially in accordance with a desired pattern, as shown in FIG. When the release agent layer (3) is partially provided, when trying to peel off the label (10) from the surface of the package (20), as shown in FIG. The part where the mold agent layer (3) does not exist, that is, the color ink (A) layer (
In the areas where 2) and the colored ink (B) layer (4) are in direct contact, the adhesion between the two layers is large, and the colored ink (B)
By dividing the layer (4) vertically, the upper half of the colored ink (B) layer (4) is attached to the base film (1) together with the colored ink (A) layer (2). away from the surface of the package (20). Note that the color ink (B) layer (4) is not attached to the surface of the release agent layer (3). Therefore, only the portion of the peeled label where the release agent layer (3) is present is selected. As a result, the color ink (A) layer (2) and the color ink (B) layer are mixed on the label (10).
The pattern drawn by the release agent layer (3) appears as a pattern having the hue of the colored ink (A) layer (2) in the background of the mixed color with the layer (4).

In both of the cases shown in Figures 6 and 8 above, even if it is peeled off and reattached to its original position, it will not adhere completely for the reasons mentioned above, so the color change described above will not occur. You can easily see that the label has been peeled off.

In addition, in FIG. 8, the mold release agent layer (3) is colored ink (A
) layer (2) and separates from the color ink (B) layer together with the base film (1), but depending on the magnitude of the adhesive force of the release agent layer (3) to each color ink layer, , contrary to the illustrated example, may remain attached to the color ink (B) layer (4) and detach from the color ink (A) layer (2), but even in that case, the release agent layer ( The color mixing effect is selectively lost only in the portion where 3) is present, and the same color change as described above still occurs.

The base film (1) constituting the tamper-proof bell of the present invention has a colored ink (A) layer (2) and a colored ink (B) layer.
Various plastic films commonly used as label substrates can be used as appropriate, as long as they have translucency that does not interfere with the color mixing effect of layer (4). Examples include polyester film (PET) and stretched polypropylene film (OPP).

The mold release agent layer (3) is a mold release agent layer that has translucency that does not interfere with the color mixing effect of the color ink (A) layer (2) and the color ink (B) layer (4), and is a mold release agent layer that does not interfere with the color mixing effect of the color ink (A) layer (2) and the color ink (B) layer (4). It is formed by applying a material used for surface treatment of release paper, which is the backing paper for labels. For example, silicone resin can be mentioned.

The color ink layers (A) and (B) can be formed using printing ink. Both of them have different hues as described above.

Typically, the primary colors may be appropriately selected from the three primary colors of red, yellow, and blue, but the primary colors are not necessarily limited as long as the color change before and after peeling off the label can be clearly seen. The printing ink contains an appropriate amount of foaming agent. A so-called foamed ink can be used. This product is used for adhesion of the peeled surface (release agent layer (3)
It is extremely effective in preventing the adhesion between the color ink (B) layer (4) and the color ink (B) layer (4), and reliably preventing the reproduction of color mixing effects.

Note that both the colored ink (A) layer (2) and the colored ink (B) layer (4) do not necessarily have to be a single layer, and in order to achieve the desired coloration, multiple inks with different hues may be used. May be stacked. For example, if green is desired as the hue of the ζ color ink (A) layer (2), two layers of yellow ink and blue ink are laminated to form a color ink (A) layer that exhibits a green color due to the mixing effect. be able to. The same applies to the colored ink (B) layer (4).

The adhesive layer (5) may be any general adhesive used as an adhesive for tack labels.

Color ink (A) layer (2) of the tamper-proof label of the present invention
, the release agent layer (3), the colored ink (B) layer (4), and the adhesive layer (5) are coated and coated using a printing method such as gravure printing.
Can be stacked. The manufacturing process is not particularly different from that of ordinary tack labels, except that the predetermined laminated structure described above is formed.

〔Example〕

As shown in FIG. 3, a color ink (A) layer (2) is formed on the upper surface of the base film (1) using the following constituent materials,
A release agent layer (3) and color ink (B) are provided on the lower surface of the base film.
) Layer (4) and adhesive layer (5) were sequentially laminated, and a tamper-proof label was produced in which a release paper for protecting the adhesive layer (5) was adhered to the surface of the adhesive layer (5). . Each layer was applied by gravure printing. In addition, the mold release agent layer (3
) was applied in an "opened" pattern.

(i) Base film: polyester film, wall thickness 38
μm and (ii) Color ink (A) layer: TR-P type (product name) [
Manufactured by Osaka Ink Manufacturing. Yellow 0 layer thickness 1-2 μm.

(iii) Color ink CB) layer: TR-P type (product name)
[Made by Osaka Ink Manufacturing], blue. Layer thickness: 1 to 2 μm; (iv) Release agent layer: TR-P type (trade name) (manufactured by Osaka Ink Manufacturing Co., Ltd.). Transparent. Layer thickness: 1 to 2 μm.

(v) Adhesive layer Niacrylic adhesive. Transparent. Layer thickness 27μ
m.

The above label was peeled off from the release paper and adhered to the surface of the enveloping film (stretched polypropylene film) (22) of the package (2o) as shown in FIG.

The entire surface of the label exhibits green, which is a mixed color of the colored ink (A) layer (2) and the colored ink (B) layer (4). Next, remove the base film (1) from one end of the label.
After pinching it and peeling it off, I put it back in its original position and pressed it with my fingertips to reapply it.

In addition, when reattaching the label, the other end surface of the label was not peeled off in order to accurately return it to its original position.

When the label was torn off, the words "opened" appeared in yellow on a green background, and even after the label was reattached,
I was able to clearly see it as it was.

Example 2 This was carried out except that a foamed ink [Microfere F30D (trade name), manufactured by Matsumoto Yushi ■, ink foaming agent = 84:16] was used as the color ink of the colored ink (B) layer (4). A tamper-proof label as shown in FIG. 3 was produced under the same conditions as in Example 1.

This label was adhered to the surface of the package in the same manner as in Example 1 and then reapplied. As a result, even after reapplying, the contrast between the green background of the label and the yellow text "Opened" remained more vivid. did.

By using the following constituent materials, color ink (A) l (2), release agent layer (3), color ink ( B) layer (4) and adhesive layer (5)
) were sequentially coated and laminated by gravure printing, and a release paper was pasted on the surface of the adhesive layer (5) to produce a tamper-proof label (circular label with a diameter of about 30 mm). Note that the release agent layer (3) was applied in a pattern with letters "opened".

(i) Base film: polyester film.

Wall thickness: 38μm.

(11) Color ink (A) layer: 'rR-x type (product name) [
Manufactured by Osaka Ink Manufacturing. yellow. Layer thickness l-2 μm.

(iii) Color ink (B) layer: TR-X type (trade name) [manufactured by Osaka Ink Manufacturing ■]. Blue. Layer thickness: 1 to 2 μm0 (iv) Release agent layer Niacrylic resin. Transparent. Layer thickness 1~
2 μm.

(v) Adhesive layer Nia-Ril strong adhesive. Transparent.

Layer thickness: 30 μm The above label was peeled off from the release paper and adhered to the surface of the enveloping film (polyvinyl chloride film) (22) of the package (2o) as shown in FIG. The color of the label is green, which is a mixed color of the colored ink (A) layer (2) and the colored ink (B) layer (4). Next, pinch one end of the base film (1) of the label and peel it off.
I returned it to its original position and reattached it by pressing it with my fingers. Note that the other end of the label was not peeled off in order to accurately reattach the peeled label to its original position.

When the above label is peeled off from the package, a yellow character pattern "Opening Instructions" appears on the green background.
Even after re-attaching the label, it was still clearly visible.

〔Effect of the invention〕

When the tamper-proof label of the present invention is attached to a package and then peeled off from the surface, a color change occurs on the entire surface or part of the label according to the pattern of the release agent layer. Anyone can easily tell whether the label has been changed or not between the time the package is received and when the package is received.

Therefore, when the tamper-proof label of the present invention is used as a sealing label for a package, if there is no color change in the label, it is determined that the package was definitely kept sealed during the distribution process. and if a change in color is visible, it may have been opened, so
When using the contents of the package, it is possible to prevent unforeseen situations by inspecting the contents for any abnormalities.

In addition, when the tamper-proof label of the present invention is a label displaying characters, symbols, designs, etc. indicating information regarding the contents of the package (trademark, product name, usage, price, manufacture, seller base, etc.) Similarly to the above, it is possible to visually check whether the label has been replaced by a change in the color of the label, and it is easy to check whether the label is the correct one. prevent unforeseen situations and contribute to maintaining distribution order.

It goes without saying that the tamper-proof label of the present invention is also useful as a label that serves as both a sealing label and a display label.

As described above, the tamper-proof label of the present invention makes it possible to confirm the presence or absence of tampering at a glance, thereby rendering tampering meaningless and thus also effective in deterring tampering.

The tamper-proof label of the present invention can be manufactured through the same process as a normal tack label, and it only needs to be adhered to the package, so it is cheaper and easier to handle than conventional tamper-proof structures. .

[Brief explanation of the drawing]

1, 3, 5 and 7 are schematic cross-sectional views of the laminated structure of the tamper-proof label of the present invention, FIG. 2, FIG. 4,
6 and 8 are schematic cross-sectional views showing how the tamper-proofing label of the present invention is peeled off, and FIG. 9 is a perspective view showing an example of how the tamper-proofing label of the present invention adheres to the surface of a package. 1: Base film, 2: Colored ink (A) layer, 3: Release agent layer, 4: Colored ink (B) layer, 5: Adhesive layer.

Claims (2)

[Claims] (1) A base film, a colored ink (A) layer coated on the upper surface of the base film, a release agent layer coated on the lower surface of the base film according to a desired pattern, and the release agent A colored ink (B) layer having a different hue from the colored ink (A) layer, which is laminated on the base film as an intermediate layer, and an adhesive layer coated on the lower surface of the colored ink (B) layer. A tamper-proof label on the package consisting of. (2) a base film, a colored ink (A) layer applied to the lower surface of the base film, a release agent layer applied to the lower surface of the colored ink (A) layer according to a desired pattern; A colored ink (B) layer having a different hue from the colored ink (A) layer, which is laminated with a release agent layer as an intermediate layer, and an adhesive layer coated on the lower surface of the colored ink (B) layer. A tamper-proof label for the packaging.