JPH0533399B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a sealing label.

Generally, labels with adhesive applied to the back are often used to seal paper bags and boxes.

In this case, if the surface of the paper bag or box to be sealed is made of hard and smooth material or plastic film, carefully peel off the label used for sealing, open the paper bag or box, and then seal it again using the same label. However, it is not easy to find evidence that the package has been opened.

Currently, products are manufactured, packaged, and go through numerous distribution processes before being displayed in stores and reaching general consumers.

For consumers, being able to confirm for themselves that the product packaging has not been opened from the time it was packaged at the factory until the time they received it gives them a great sense of security. This is also a very serious issue for product manufacturers from the standpoint of quality assurance and safety control.

Especially when the product is food, it is very important to confirm that there is no poisonous substance mixed in during the distribution process.

An object of the present invention is to provide a sealing label that allows even general consumers to easily find traces of the packaging of a product when it is opened.

In the present invention, an internal adhesive layer is provided on the back side of a transparent or translucent label-like sheet, a pattern ink of an arbitrary shape is provided on the inner adhesive layer, and an external adhesive layer is further placed on top of the internal adhesive layer so as to sandwich the pattern ink. a label having a multilayer structure, further comprising a release paper provided thereon, the side of at least one of the inner adhesive layer or the outer adhesive layer facing the pattern ink; It consists of a sealing label partially coated with an ink repellent agent.

The sealing label of the present invention will be explained in detail with reference to Examples.

The label sheet 1 shown in FIG. 1 is a transparent plastic sheet.

In the sealing label of this example, the label sheet 1
An internal adhesive layer 2 is first applied to the back side of the holder. This internal adhesive layer 2 is provided with spot-like ink-repellent portions as shown in FIG.

As for the ink-repellent portion of the sealing label of the present invention, the spotted portion of the pattern shown in FIG. 3 may be used as the adhesive layer portion, and the other portions may be used as the ink-repellent portion. You can choose from a variety of patterns, including horizontal stripes.

In the sealing label of the present invention, instead of providing the ink-repellent portion 5 by simply removing the adhesive layer, it is preferable to actively apply an ink-repellent agent to this portion. can.

The ink repellent may be one that simply blocks the adhesive force of the adhesive layer, or one that has water or oil repellency, such as a silicone-containing resin or a fluorine-based release agent, depending on the material of the pattern ink 3 and those that come into contact with each other. It can be selected and used as appropriate depending on the material of the adhesive layer of the other party.

In the sealing label of this embodiment, the ink repellent portion 5
has the effect of reducing the adhesive force between the inner adhesive layer 2 and the pattern ink 3 and ensuring that the pattern ink 3 is adsorbed towards the outer adhesive layer 4 when the seal is removed. It is something. Any means that can achieve such an effect can be employed as the ink repellent section 5.

When using an ink repellent, the adhesive can be applied to the entire surface, and then the ink repellent can be applied intermittently in any pattern described above.

In this embodiment, the internal adhesive layer 2 is coated and then the checkered stripes shown in FIG. 2 are printed. As a result, the pattern ink 3 is provided on the inner adhesive layer 2 in a checkered pattern, and this pattern is clearly visible from the surface of the transparent label-like sheet 1.

In this way, the label sheet 1 is made transparent or translucent so that the ink pattern can be seen from the surface. It is also desirable that the internal adhesive layer 2 has a transparency that does not hinder the identification of the pattern.

In this case, the thinner the checkered print lines, the easier it is to find evidence of tampering.

The shape of the pattern ink 3 in the sealing label of the present invention is not limited to this checkered line, but any pattern or emblem of any shape can be adopted. When the printed pattern is vertical stripes, it is also a desirable combination to make the pattern of the ink-repellent portion 5 of the adhesive layer horizontal stripes.

In this example, an external adhesive layer 4 is applied over the entire surface of the printing ink.

In the sealing label of the present invention, an ink-repellent portion as described above may be provided on the outer adhesive layer. In this case, the effect of the sealing label of the present invention can be obtained without providing an ink-repellent portion in the internal adhesive layer. Of course, if both adhesive layers are provided with ink-repellent parts, it will be more reliable to find traces of tampering.
Effective.

In the sealing label of this embodiment, a release paper 6 is provided on the outer adhesive layer 4. This is attached to protect the adhesive surface of the seal label. When using the label, peel it off before gluing it on.

Any commonly used release paper can be used as appropriate. Many release papers have their surfaces coated with a silicone agent to prevent adhesion.

Since the release paper 6 of the present invention has adhesion prevention means applied to its surface, when the release paper is peeled off like a normal adhesive label, no adhesive or the like remains on it.

The sealing label of the present invention can be manufactured in the form of a large number of labels attached on one sheet as shown in FIG.

At this time, the release paper 6 becomes a mount and becomes a release paper common to many labels. This can be manufactured using conventional adhesive label manufacturing methods.

When the sealing label of this embodiment is peeled off from the release paper 6 and pasted on the box or the subsequent sealing part, the label is adhered to the sealing part by the external adhesive layer 4 to seal it.

When this label is peeled off, the portion of the external adhesive layer 4 facing the ink-repellent portion 5 remains in the sealing portion along with the portion corresponding to the pattern ink. Then, the portion of the external adhesive layer that does not face the ink-repellent portion 5 is peeled off together with the pattern ink portion thereon, attached to the label. As a result, the pattern ink separates into both parts and is destroyed. Once the pattern ink is destroyed, it is impossible to restore it to its original state if the pattern is complex to some extent.

In this way, when the sealing label of the present invention is torn, traces thereof can be easily found.

When the sealing label of this embodiment is peeled off, whether or not the part of the external adhesive layer 4 that does not face the ink-repellent part 5 is attached to the peeled label depends on the sealing part and the external adhesive. There is a conflict between the affinity between the adhesive and the affinity between the label side and the external adhesive, and it may not necessarily all come off together with the label. However, it is not necessary that this part of the outer adhesive layer is entirely accompanied by the label being peeled off; it is sufficient to achieve the purpose if part of it is peeled off together with the label. Also, if the affinity between the internal adhesive layer and the pattern ink is strong, peeling may occur between the pattern ink and the external adhesive.
Also in this case, the object of the present invention can be achieved.

In the sealing label of the present invention, if the ink-repellent portion 5 is provided not only in the inner adhesive layer 2 but also in the outer adhesive layer 4, it is possible to ensure that the pattern ink is reliably separated into the label side and the sealing portion side. .

In fact, even if both of these adhesive layers are not provided with ink-repellent portions 5, under most conditions the pattern ink will reliably decompose upon peeling off.

When the adhesion between the sealing part and the external adhesive layer is particularly strong, it is appropriate to provide the ink-repellent part 5 on both adhesive layers.

When using the sealing label of the present invention, destruction of the seal can be reliably discovered by strictly managing the sealing label. At that time, if the sealing label of the present invention, which has a unique patterned ink shape, is used, it is possible for someone else to manufacture a fake product.
This also prevents them from being sold with the same seal.

The sealing label of the present invention can be used not only for sealing the packaging of the above-mentioned products, but also for a very wide range of applications, such as sealing envelopes for confidential documents and bags for depositing valuables, and can be used in many industrial fields, so it will contribute. However, it is a vast and extremely useful invention.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view showing the multilayer structure of the sealing label of the present invention, FIG. 2 is a front view showing the external appearance as seen from the surface, and FIGS. 3 and 4 are views of the ink-repellent portion. FIG. 5 is a plan view showing the shape, and FIG. 5 is a front view of the label sheet which is the storage form of the sealing label of the present invention. The symbols in the figure are 1; label-like sheet; 2; internal adhesive layer; 3; pattern ink;
4; external adhesive layer; 5; ink-repellent portion; 6; release paper.

Claims (1)

[Claims] 1 An internal adhesive layer is provided on the back side of a transparent or translucent label-like sheet, a patterned ink of an arbitrary shape is provided on top of the internal adhesive layer, and an external adhesive layer is further provided on top of the patterned ink so as to sandwich the patterned ink. The label has a multilayer structure, and an ink repellent coated portion is partially provided on the side facing the pattern ink of at least one of the internal adhesive layer and the external adhesive layer. A unique sealing label.