JP5578407B2 - Laminated structure - Google Patents

Description

The present invention relates to a laminated structure, and more particularly to a laminated structure configured to exhibit a discrimination function related to a counterfeit product.

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 caused by drugs of counterfeit products has been reported. (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 configuration of the present invention related to the means for solving the above technical problem is:
In the laminated structure,
Two base layers made of synthetic resin are laminated in a laminated form, and a labeling layer made of a material having a lower X-ray transmittance than the two base material layers is laminated between the two base material layers,
It is said that at least one of the base material layers is opaque.

In the above configuration, the labeling layer exhibits a function as a so-called hidden character or pattern, and by making at least one base layer opaque, the labeling layer can be made invisible from the outside. On the other hand, by utilizing the low X-ray transmittance of the marker layer, an apparatus capable of detecting a difference in X-ray transmittance in an object such as an X-ray transmission apparatus or a CT apparatus (hereinafter referred to as an X-ray transmission apparatus or the like). If necessary, the presence or absence of a labeling layer can be confirmed without destroying the product.
By disposing such a laminated structure in a packaging container or the like, a discrimination function related to a counterfeit product can be imparted to the product.

In addition, both base material layers can also be made from the same synthetic resin according to the objective, and can also be made from a different synthetic resin.
Moreover, whether one of the base material layers is opaque or whether both of the base material layers are opaque can be selected according to the usage mode of the laminated structure, so that both sides of the laminated structure are exposed to the outside. Of course, in both applications, both substrate layers are opaque.
Further, by making both the base material layers opaque, for example, even when the packaging container as a laminated structure is disassembled, the presence of the marker layer is hidden, so that the appearance of counterfeits can be prevented more reliably. It becomes possible.

  Another configuration of the present invention is that in the above main configuration, the labeling layer is formed by laminating the labeling layer in a planar shape selected from characters, symbols, designs, and patterns to form the labeling layer. Confirmation can be easily achieved.

  Still another configuration of the present invention is that, in the above main configuration, the labeling layer is made of a material in which an inorganic filler or an inorganic pigment is dispersed in a synthetic resin.

The material of the labeling layer is not particularly limited within the category that the X-ray transmittance is smaller than both base material layers, but the labeling layer is made of a material in which an inorganic filler or an inorganic pigment is dispersed in a synthetic resin according to the above configuration. By doing so, the X-ray transmittance of the marker layer can be made smaller than that of the two substrate layers without significantly degrading the adhesiveness between the two substrate layers and the marker layer and the flexibility of the laminated structure by the lamination of the marker layers. it can.
For example, in terms of the moldability of the marker layer, a multilayer structure is formed by extruding the marker layer between both base layers by multilayer coextrusion to form a laminated structure. The discriminating function related to the counterfeit product can be exhibited by the label layer.
In particular, if the same synthetic resin is used for both the base material layer and the labeling layer, the three layers can be laminated in a state where they are securely bonded in a heat-welded state.

  In order to make both the base material layers opaque, a small amount of inorganic filler or inorganic pigment may be dispersed in both base material layers themselves. Disperse the inorganic pigment.

  Still another configuration of the present invention is that, in the above main configuration, the labeling layer is a printing layer.

  The above configuration relates to the method of laminating the labeling layer, but the X-ray transmittance of the printing layer can be reduced by dispersing an inorganic filler or an inorganic pigment having a low X-ray transmittance in the printing ink. The labeling layer can be easily laminated with high accuracy even with small letters, for example.

  Still another configuration of the present invention is that in the main configuration described above, the labeling layer is affixed to the base material layer.

The above configuration also relates to the method for laminating the label layer, and the other base material is coated so as to cover the label layer by pasting a label layer punched into a predetermined character or design on one base material layer. By stacking layers, a stacked structure can be obtained.
For example, using a hot stamp film in which an aluminum foil layer having a low X-ray transmittance is laminated, predetermined characters, designs, and the like can be pasted by a hot stamp method.

  Still another configuration of the present invention is that in the above main configuration, the laminated structure is a label, and a label that is a laminated structure having a discrimination function related to a counterfeit product is attached to a packaging container or the like. The discrimination function related to the counterfeit product can be easily given to the product.

  Still another configuration of the present invention is that, in the above main configuration, the laminated structure is a synthetic resin container.

Blow-molded containers and tube containers are formed by extrusion, and characters and designs cannot be formed by the marker layer. However, as described above, the marker layer is extruded in a discontinuous manner between both base layers by multilayer coextrusion molding. The laminated structure is formed by molding, and the discriminating function can be exerted by the label layer laminated in a discontinuous manner.
Alternatively, a synthetic resin laminated sheet having a label layer as an intermediate layer may be wound into a tube container.

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 labeling layer exhibits a function as a so-called hidden character or design, and by making at least one base material layer opaque, The labeling layer cannot be seen from the outside. On the other hand, using the low X-ray transmittance of the labeling layer, the presence or absence of the labeling layer can be confirmed without destroying the product, if necessary, using an X-transmission device. By disposing such a laminated structure in a packaging container or the like, a discrimination function related to a counterfeit product can be imparted to the product.

It is a perspective view which shows the tube container of 1st Example of the laminated structure of this invention. It is explanatory drawing which shows the layer structure of the tube container of FIG. It is a top view which shows the label of 2nd Example of the laminated structure of this invention. It is sectional drawing which shows the layer structure of the label of FIG.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, embodiments of the invention will be described with reference to the accompanying drawings.
1 and 2 are for explaining a tube container which is a first embodiment of the laminated structure of the present invention. FIG. 1 is a perspective view, and FIG. 2 is a perspective view showing the layer structure. Its cross-sectional structure is shown.
The tube container 1 includes a cylindrical body portion 2 formed by winding a sheet piece and sealing both end portions, and a head portion 3 attached to and integrated with one end of the body portion 2 by injection molding or compression molding. The contents are filled from the remaining end, and the end is a flat bottom seal portion 4.

The layer structure of the peripheral wall of the body portion 2 of the tube container 1 is designed between the outer base layer 11 and the inner base layer 12 laminated in a laminated manner as shown in FIG. 1 or FIG. The labeling layer 13 that forms the letters A and B is laminated.
In addition, in FIG. 1, the state which peeled the outer base material layer 11 in a part of surrounding wall is shown.

In this embodiment, the outer base layer 11 is made of a low density polyethylene resin, the inner base layer 12 is made of a high density polyethylene resin, and the outer base layer 11 has 3 parts by weight with respect to 100 parts by weight of the resin. Titanium white fine powder is mixed to make it white opaque.
The label layer 13 is formed by forming a material in which 40 parts by weight of titanium white is mixed with 100 parts by weight of a low-density polyethylene resin into a film shape, and punching it into the shapes of the letters A and B as illustrated.

  The marker layer 13 punched in this way is laminated in a heat-sealed state between the sheet-like outer substrate layer 11 and the inner substrate layer 12, and the marker layer 13 is made of titanium which is an inorganic pigment. Since white is mixed in a large amount of 40 parts by weight, the X-ray transmittance of the marker layer 13 is smaller than that of the outer base layer 11 and the inner base layer 12.

And since the outer base material layer 11 is white and opaque in the normal state, the tube container 1 of the present embodiment cannot visually recognize the marker layer 13 from the outside.
By utilizing the low X-ray transmittance of the labeling layer 13, the presence or absence of the labeling layer 13 can be confirmed without destroying the product by an X-ray transmission device or the like, if necessary.

Next, FIGS. 3 and 4 are for explaining a label which is a second embodiment of the laminated structure of the present invention, FIG. 3 is a plan view thereof, and FIG. 4 is a sectional view showing a layer structure.
As shown in FIG. 2, the label 20 has a layer structure in which a stylized letter A or B is formed between an outer base layer 21 and an inner base layer 22 that are laminated together. A laminated body in which the layer 23 is laminated, the adhesive layer 26 is further laminated on the lower side of the inner base material layer 22, and the stylized a for decoration on the upper side of the outer base material layer 21; A decorative print layer 24 that forms characters b, c, d, and e is laminated, and a transparent protective layer 25 is laminated so as to cover the decorative print layer 24.

In this embodiment, both the outer substrate layer 21 and the inner substrate layer 22 are made of a stretched polypropylene resin film that is colored so as to be opaque.
The label layer 23 is a printing layer and is printed using a printing ink in which an inorganic pigment having a small X-ray transmittance is dispersed.
The decorative print layer 24 formed on the upper side of the outer base material layer 21 is printed using ordinary printing ink.

In the label 20 of the present embodiment, the outer and inner base layers 21 and 22 are opaque in a normal state. Therefore, as shown in the plan view of FIG. However, it is possible to confirm the presence or absence of the labeling layer 23 as necessary by using an X-ray transmission device or the like by utilizing the low X-ray transmittance of the labeling layer 23. By sticking such a label 20 on a packaging container or the like, a discrimination function related to a counterfeit product can be imparted to the product.
In addition, according to the method of forming the marking layer 23 by printing as in the present embodiment, it is possible to form the marking layer also in a small character or a complicated pattern, and more information is hidden as a hidden character or design. Can be granted.

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, the laminated structure of the present invention can be added with a layer such as a decorative layer or a gas barrier layer as necessary. Further, the laminated structure is not limited to the tube container and the label of the above-described embodiment, and can be formed in various forms.

In the above embodiment, in order to reduce the amount of X-ray transmission, the labeling layer is made of a material in which an inorganic filler or an inorganic pigment is mixed with a synthetic resin. For example, a hot stamp in which a metal foil layer having a low X-ray transmittance is laminated. Means such as using a film can also be employed.

As described above, the laminated structure of the present invention has a discrimination function related to a counterfeit product based on hidden characters and patterns in a method that is difficult to understand or imitate by a third party using the difference in the transmittance of X-rays. It is expected to be used widely as a countermeasure against counterfeit products.

DESCRIPTION OF SYMBOLS 1; Tube container 2; Body part 3; Head part 4; Bottom seal part 11; (Outside) base material layer 12; (Inside) base material layer 13; Marking layer 20; Label 21; Layer 22; (inner) substrate layer 23; marker layer 24; decorative print layer 25; protective layer 26; adhesive layer

Claims (7)

Two base layers made of synthetic resin are laminated together, and a labeling layer made of a material having a lower X-ray transmittance than the two base material layers is laminated between the two base material layers. A laminated structure in which the base material layer is opaque. The laminated structure according to claim 1, wherein the labeling layer is laminated in a planar shape selected from characters, symbols, designs, and patterns. The laminated structure according to claim 1 or 2, wherein the labeling layer is made of a material in which an inorganic filler or an inorganic pigment is dispersed in a synthetic resin. The laminated structure according to claim 1, 2, or 3, wherein the labeling layer is a printed layer. The laminated structure according to claim 1, 2, or 3, wherein the labeling layer is bonded to the base material layer. The laminated structure according to claim 1, 2, 3, 4, or 5, which is a label (11). 6. The laminated structure according to claim 1, which is a synthetic resin container.

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