JP5477703B2 - Laminated structure and packaging container - Google Patents

Description

The present invention relates to a laminated structure, in particular, a laminated structure configured to exhibit a discrimination function related to a counterfeit product, and a packaging container equipped with the laminated structure.

In recent years, with the internationalization of distribution, sophisticated counterfeits of brand-name products have also come out, and countermeasures have become important. For example, the method of attaching IC tags to articles is one of the leading methods. is there.
There are many counterfeit products in the field of pharmaceuticals and cosmetics, and health damage due to drugs of counterfeit products has been reported, and pharmaceutical manufacturers have hidden letters and designs such as fluorescent printing on packaging containers as measures to prevent counterfeit products. (See Patent Document 1) so that the authenticity of the product can be determined.

JP 2000-318290 A

  It is an object of the present invention to create a discrimination function related to a counterfeit product using a hidden structure or a pattern that is difficult to understand or imitate by a third party using a laminated structure mainly composed of a synthetic resin. To do.

The main structure of the present invention according to the means to solve the above technical problem, the laminated structure includes a substrate layer having a polarization function, design into a predetermined planar shape by a transparent alignment material on the surface side of the substrate layer with a phased-labeled layer partially stacked, and configured to cover by laminating a coating layer made of a transparent synthetic resin on the label layer are those called.

According to the laminated structure having the above-described configuration, from the region where the labeling layer is stacked, the cooperative optical function of the labeling layer having a polarizing function and a substrate layer having a polarizing function and an optical anisotropy is provided. By the action, light that is polarized in a state peculiar to the combination of the base material layer and the labeling layer, which is different from the area where the surrounding labeling layer is not laminated, that is, the region including only the clothing layer, appears.
The light polarized in such a specific state can be detected by using an optical device, or can be directly visually recognized by a change in color or the like through a polarizing plate. It can be applied to the structure itself or a product in which this laminated structure is laminated on the surface.

Here, in the above configuration, the labeling layer is formed of a transparent alignment material, and this labeling layer is covered with a transparent synthetic resin coating layer, so that both the labeling layer and the coating layer are colorless and transparent. By doing so, it can be made clear that the marker layer is not laminated on the appearance.
Of course, for example, the coating layer can be made transparent so that the coating layer can be seen even in a normal case. Even in such a case, the brightness largely changes depending on the orientation of the polarizing plate, so that the discrimination function is exhibited.

Moreover, as the base material layer having a polarizing function, a polarizing film made of a synthetic resin, a paint containing a polarizing agent such as a liquid crystalline dichroic dye, or the like can be used.
Also, label layer prints the transparency orientation ink, it can be laminated by a method such as applying a transparent orientation paint.

  Another configuration of the present invention is that, in the main configuration described above, the labeling layer has a shape selected from characters, symbols, designs, and patterns.

The shape of the labeling layer is not particularly limited considering the method of detecting the labeling layer using an optical instrument, but the labeling layer is selected from characters, symbols, designs, and patterns according to the above configuration. By using a predetermined shape, the presence of the marker layer can be easily visually recognized through the polarizing plate.
In addition, for example, the sign layer may be colored and transparent so that the covering layer can be seen in a normal case, and the decoration function can be exhibited by characters, symbols, designs, and patterns.

  Still another configuration of the present invention is that in the above main configuration, the laminated structure is a label or a film, and a label which is a laminated structure having a discrimination function related to a counterfeit product is attached to a product, or a film By putting the product on the exterior, it is possible to easily give the product a discrimination function related to the counterfeit product.

  Still another configuration of the present invention relates to a packaging container, which is a packaging container having an outer layer of the label or film having the above configuration.

In the packaging container having the above-described configuration, a discriminating function related to a counterfeit product can be easily given by an attached label or an outer film, and various products using packaging containers such as pharmaceuticals and cosmetics can be provided. About counterfeit products can be effectively prevented.

Since the present invention has the above-described configuration, the following effects can be obtained.
That is, in the laminated structure having the main configuration of the present invention,
The base material layer and the labeling layer that emerge from the region where the labeling layer is laminated by the cooperative optical action of the basement layer having a polarizing function and the labeling layer made of a transparent alignment material and having optical anisotropy Light that has been polarized in a state peculiar to the combination of the above can be detected using an optical device, or can be directly visually recognized by a change in color, etc. through a polarizing plate. It can be applied to the product itself or a product in which this laminated structure is laminated on the surface.

It is explanatory drawing which shows the example using the label which is an example of the laminated structure of this invention. (A) is sectional drawing which shows the layer structure of the label of FIG. 1, (b) is sectional drawing which looked at the layer structure of the base material layer in (a) further in detail.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, embodiments of the invention will be described with reference to the accompanying drawings.
FIG. 1 is an explanatory view showing an example using a label which is an example of a laminated structure of the present invention, and is an example in which a label 11 is affixed to a body portion 2 of a casing 1 by blow molding which is a synthetic resin molded product. . 2 is a cross-sectional view showing the layer structure of the label 11 of FIG. 1 (including the peripheral wall 2w of the body 2 of the housing 1).

As shown in FIG. 2 (a), the label 11 of the present embodiment is formed by laminating a label layer 13 in a predetermined planar shape with a transparent alignment material on the surface side of a base material layer 12 having a polarizing function, A transparent synthetic resin coating layer 14 is laminated on the layer 13, and an adhesive layer 15 is laminated on the back surface side of the base material layer 12.
Here, in this embodiment, the planar shape of the marker layer 13 is a shape in which the letters A, B, and C seen in FIG. 1 are designed.

In this embodiment, as the base layer 12, as shown in FIG. 2 (b), a transparent acrylic film 12p obtained by uniaxially stretching a film obtained by dyeing a polyvinyl alcohol film with iodine or a dichroic dye is used. A polarizing film whose upper and lower sides are covered with a protective layer 12c made of a synthetic resin such as a resin is used.
In addition, the labeling layer 13 is formed by laminating a cellulose resin film (so-called cellophane film), which is a transparent alignment material, in a shape in which the letters A, B, and C are designed. It is made to coat | cover with the acrylic resin type transparent coating film.
The adhesive layer 15 was made of a polypropylene resin heat seal material.
Of course, as the adhesive layer 15, various other synthetic resin materials such as a hot melt type mainly composed of an ethylene / vinyl acetate copolymer can be used.

In such a label 11, the colorless and transparent marker layer 13 in which the letters A, B, and C are designed is located in a state of being embedded in the colorless and transparent covering layer 14 as shown in FIG. 2. Therefore, the letters A, B and C from the sign layer 13 cannot be seen from the outside.
As seen in FIG. 1, when viewed through the polarizing plate PL, from the region where the label layer 13 is laminated, the base layer 12 having a polarizing function and the label layer 13 having optical anisotropy made of a transparent alignment material are formed. Because of the cooperative optical action, polarized light appears in a state peculiar to the combination of the base material layer 12 and the marker layer 13, which is different from the area of the clothing layer 14 alone. The area appears in a different color from the surrounding area. For example, as shown in the figure with part of A and B indicated by solid lines, in the area where the polarizing plate PL is overlapped, the characters by the label layer 13 are clearly visible. It can be visually recognized, and the counterfeit can be easily identified.

As mentioned above, although the structure of this invention and its effect were demonstrated along the Example, the laminated structure of this invention is not limited to the said Example.
For example, in the above embodiment, the label has been described as an example of the laminated structure of the present invention. However, the laminated structure of the present invention can be formed into a film, and a discrimination function related to a counterfeit product by packaging the product. Can be granted.
Moreover, the laminated structure can be used as a hot stamp film, and a discrimination function related to a counterfeit product can be imparted to a molded product such as a synthetic resin container by a hot stamp method.
In addition, for example, a coating material having a polarizing agent as a component is applied to the outer surface of a synthetic resin container to form a base material layer, and a labeling layer and a coating layer are further laminated to make the synthetic resin container itself a laminated structure. You can also.

In addition, both the label layer 13 and the coating layer 14 can be configured to be colorless and transparent so that the label layer 13 cannot normally be visually recognized. On the other hand, for example, the label layer 13 is colored and transparent and can be normally viewed. The decoration effect can also be exhibited by 13, and in such a case as well, the brightness changes greatly depending on the direction of the polarizing plate PL, so that the discrimination function is exhibited.
Further, not only the method of directly discriminating with eyes, but also a discriminating optical instrument can be used. Therefore, the marker layer 13 is not limited to characters, symbols, designs, patterns that can be visually recognized by the eyes, It can be set to any shape and size that can be determined by an optical device.

As described above, the laminated structure of the present invention has a discrimination function related to a counterfeit product using hidden characters and patterns in a method that is difficult to understand or imitate by a third party using polarized light. A wide range of usage is expected as a countermeasure.

DESCRIPTION OF SYMBOLS 1; Housing 2; Body 2w; Peripheral wall 11; Label 12; Base material layer 12p; Film 12c (dyed and uniaxially stretched); Protective layer 13; Marking layer 14; Clothing layer 15; Adhesive layer PL;

Claims (7)

A base layer having a polarization function (12), stylized, labeled layer in a predetermined plane shape (13) with partially laminated by clear alignment material on the surface side of the substrate layer (12), said A laminated structure in which a transparent synthetic resin coating layer (14) is laminated on the marker layer (13). The laminated structure according to claim 1, wherein the labeling layer (13) is formed of a cellulose resin film. The laminated structure according to claim 1, wherein the marker layer (13) is formed by printing using an orientation ink. The laminated structure according to any one of claims 1 to 3, wherein the labeling layer (13) is laminated in a shape selected from characters, symbols, designs, and patterns. The laminated structure according to any one of claims 1 to 4, wherein the laminated structure is a label (11). The laminated structure according to any one of claims 1 to 4, wherein the laminated structure is a film. A packaging container in which the label (11) according to claim 5 or the film according to claim 6 is packaged.

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