JP2544610Y2 - Information medium with hologram - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention is a technology for adding information to a medium such as a card base material or a magazine cover while enhancing a decoration effect by using a hologram. And a technique for forming two layers of holograms.

(Prior Art) The concept of adding a hologram layer to an information medium having a flat surface such as a card base is described in, for example,
As -153993 shows, it is already known. According to this, since the hologram is used, each effect of the decorativeness and the forgery prevention can be enhanced.

Also, as the same publication shows, on the hologram layer,
Furthermore, if a picture layer made of ink is superimposed, the decorative effect will be further enhanced.

(Problem to be Solved by the Invention) The present inventors have studied various more preferable use forms of the hologram.

As a result, we focused on the point that the hologram can reproduce a three-dimensional image. Then, by forming the hologram layer over two layers, it was found that the feature of the hologram or the decorative effect based thereon can be further brought out.

This invention has been made based on the above-described examination results, and has as its object to provide a technique capable of further enhancing the decorative effect of the hologram.

(Summary of Invention) In the invention, two layers of holograms are formed.

The two hologram layers are a lower hologram layer (first hologram layer) and a layer that overlaps the lower hologram layer, and the overlapped portion is formed into a pattern, and is compared with the lower hologram layer. Hologram layer (second hologram layer) occupying a small area.

As the two hologram layers, it is preferable to arrange a solid hologram layer on the lower layer side and a patterned hologram layer on the upper layer side. For example, a lower solid hologram layer gives a feeling of receding, so that patterns such as characters and marks on the upper layer can be raised. Also, in order to make the upper layer pattern clearer, it is preferable to make the reflection forms of the upper and lower holograms different from each other.

Further, it is particularly preferable that both the upper and lower hologram layers are formed by a transfer pattern. The transfer pattern can be easily obtained by using a stamping die formed by a general relief printing technique and a pre-made hologram transfer foil.

(Embodiment) See FIGS. 1 and 2 In the embodiment shown in the drawings, a hologram section 30 is formed on a part of a card 10 having a stripe-shaped magnetic recording section 20 by applying the present invention. It is an example.

The main body 11 of the card 10 is a single-layer film or a general card base material on which a plurality of films are laminated.
The card base material 11 has physical properties as a card base material, and is subjected to a transfer treatment (for example, 120 ° C., 0.5
For example, various materials such as plastic, paper, and metal can be used as long as the processing can be performed in seconds.

Of course, the card substrate 11 has flat surfaces parallel to each other on its front and back surfaces. The hologram unit 30 is located in the lower right part of one surface of the magnetic recording unit 20 among the flat surfaces. The size of the hologram unit 30 is, for example, 2c
It is about mx 3cm.

Until now, such a hologram part usually has a single hologram layer. However, in the card 10 here, the hologram unit 30 has a two-layer hologram structure. First, on the surface of the card base material 11, a size of 2 cm x 3 cm
There is a solid first hologram layer 31. Then, with the intermediate protective layer 33 interposed on the first hologram layer 31,
There is a patterned or patterned second hologram layer 32. The upper hologram layer 32 includes a character portion 32a, a mark portion 32b, and a pattern portion 32c, and is itself patterned. On the other hand, the lower first hologram layer 31
It is a base or background of the second hologram layer 32 and has a rectangular solid shape. In order to effectively raise the second hologram layer 32 in the form of a pattern, the lower first hologram layer 31 is preferably made of a hologram containing an image of a star, a tint block, or the like that appears to recede. The intermediate protective layer 33 is for protecting the lower first hologram layer 31, and may be provided so as to partially cover only the first hologram layer 31 as shown in the drawing. However, it may be provided so as to cover the entire surface of the card base material 11 including the first hologram layer 31. As a material of the layer 33, a highly transparent material, for example, transparent polyethylene terephthalate is used. Further, the three-dimensional effect of the image by the upper and lower hologram layers 31 and 32 can be increased by using the intermediate protective layer 33.

These first and second hologram layers 31, 32 are
It is obtained by embossing a hologram transfer foil including a reflection hologram. Inexpensive molds such as zinc letterpress, magnesium letterpress, and brass letterpress are used as the mold used for the foil stamping. Not only the solid first hologram layer 31 but also
In transferring the second hologram layer 32 including characters and the like, such a relief mold has sufficient precision.
In addition, since the hologram transfer foil itself can be selected and used, it can be easily formed at low cost.

Here, two types of transfer foils are used. One transfer foil forms a solid first hologram layer 31 and the other transfer foil forms a patterned second hologram layer 32. Form. As described above, the first and second hologram layers 31 and 32 differ from each other in the inner image, and also differ in the width, depth, angle, and the like of the grooves or unevenness of the hologram. Are different. Therefore, the two hologram layers 31 and 32 have different reflection forms and different colors from a viewer.
Of course, both hologram layers 31, 32 which are transfer patterns
Is usually opaque itself, for example, because it has an aluminum reflective layer with a thickness of several hundred square meters. However, for at least one of the two hologram layers 31 and 32, the reflection layer may be formed of a transparent or translucent deposited film. As such a deposited film, for example, an aluminum layer thinned to about several tens of millimeters, or a coating made of a metal oxide having a high refractive index and high transparency is used.

(Modification) FIG. 3 is a cross-sectional view corresponding to FIG. 2 in the above-described embodiment. As is apparent from the figure, in this modification, the intermediate protective film 33 between the first and second hologram layers 31 and 32 is omitted. The intermediate protective film 33 has a function of protecting the lower first hologram layer 31 even at the time of transfer processing or at the time of using a card, but is not always necessary. Therefore, by omitting it, the manufacturing process of the card can be simplified and the cost can be reduced.

In each example shown in the figure, all of the upper second hologram layer 32 is located in the lower first hologram layer 31, but depending on the pattern of the second hologram layer 32, It is also possible to have only a part thereof overlap the first hologram layer 31.

In addition, the present invention can be applied not only to cards but also to various information media having a flat surface, such as book covers, packages, and labels.

(Effects of the Invention) In this invention, the hologram part 30 added for improving the decorativeness is formed in a specific two-layer structure, so that the hologram inherently has a three-dimensional effect. A higher decorative effect can be obtained. The decorative effect is particularly remarkable when the upper and lower hologram layers 31 and 32 are formed by holograms having different reflection forms.

In addition, by forming the upper and lower hologram layers 31 and 32 by using a transfer pattern, an expensive dedicated mold used for embossing is not required, cost can be reduced, and the number of copies can be reduced, and short-term demand can be met. it can.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of the present invention, FIG. 2 is a view showing a cross-sectional structure of a portion taken along line II-II of FIG. 1, and FIG. FIG. 10 card, 11 card base material, 30 hologram part, 31 first hologram layer, 32 second hologram layer.

Claims (4)

(57) [Scope of request for utility model registration] 1. An information medium with a hologram in which two layers of holograms are formed on an information medium having a flat surface, wherein the two hologram layers are a first hologram located in a lower layer. A first hologram layer and a second hologram layer, wherein the second hologram layer has a pattern and has a smaller area than the lower hologram layer. And
Information medium with hologram. 2. The method according to claim 1, wherein the first hologram layer is solid.
2. The information medium with a hologram according to claim 1, wherein the information medium is a background for the second hologram layer, and the three-dimensional effect of the image by the second hologram layer is increased as compared with the case of the second hologram layer alone. 3. The information medium with a hologram according to claim 2, wherein the holograms of the first and second hologram layers have different reflection forms. 4. The information medium with a hologram according to claim 2, wherein said first and second hologram layers are formed by transfer patterns.