JPH0525920Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention is based on a method in which a concavo-convex pattern is formed on a surface by arranging a plurality of groups of fine line-shaped concavo-convex patterns by changing the direction of the lines. It relates to an image forming body.

[Prior art and its problems] As an image forming body having a pattern with a fine unevenness on its surface, a group of fine line-like uneven patterns are formed on the surface of a sheet-like substrate having metallic luster for each pixel. There is an image forming body (image forming body having an opal effect) in which a plurality of groups are formed in slightly different shapes. This image forming body is produced by, for example, applying a pattern, if necessary, to the aluminum surface of wax-laminated aluminum foil paper, and then forming a group of fine line-shaped uneven patterns in various combinations by changing the line direction little by little. It is produced by pressing a place plate with an embossed pattern.

In such an image-forming body, the line directions of the line-like uneven patterns on the surface are different, so the direction of reflection of light on the surface changes in various ways, and the viewing angle and direction change in various ways. When this is done, the shading and brightness of each line-shaped uneven pattern group changes dynamically, creating an extremely brilliant effect (opal effect). This image-forming body with an opal effect is difficult to manufacture because the embossed pattern used in its production is difficult to manufacture, and it is also difficult to register the pattern with the pattern previously formed on the sheet-like substrate. difficult to counterfeit. However, conventional image display bodies simply change the inclination angle of the line-shaped uneven pattern that forms display information such as backs and characters, and the display information is limited to one type, and there are multiple types of display information. In addition to being unable to display complex information such as type information or images of people and scenery, the anti-counterfeiting effect was not always sufficient.

The present invention has been developed in view of these points, and is easy to manufacture, capable of displaying complex information such as multiple types of information and images of people and scenery, and having a high anti-counterfeiting effect. A formed body is provided.

[Means for Solving the Problems] The present invention includes a hologram image formed on a predetermined area of the surface of a sheet-like substrate having metallic luster, and a hologram image formed so as to overlap at least a portion of the hologram image. The image forming body is characterized in that it includes display information consisting of a group of fine line-shaped uneven patterns having a predetermined inclination angle.

[Function] According to the image forming body of the present invention, a group of fine line-shaped uneven patterns are formed on a hologram image formed in a predetermined area on the surface of a sheet-like substrate having metallic luster so as to overlap at least in part. Since the display information consists of
In addition, it can display complex information such as multiple types of information and images of people, scenery, etc., and is highly effective in preventing counterfeiting.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing a schematic configuration of an embodiment of the present invention, and FIG. 2 is a sectional view of a card incorporating an image forming body of the embodiment. In the figure, reference numeral 1 denotes a sheet-like substrate having a metallic luster and made of, for example, a vapor-deposited layer of aluminum. In a predetermined area of the surface of the sheet-like substrate 1, for example, a groove pitch width of 0.5 to 2μ,
A hologram image 2 of a person is formed of interference fringes with a height difference of 0.5 to 1 μm. A protective layer 3 is formed on the hologram image 2. Sheet-like substrate 1 including a protective layer 3 and a hologram image 2
On the surface area, T-shaped display information 4 is formed, which is composed of a plurality of linear uneven pattern groups 4a to 4f with groove pitch widths of 60 to 90μ, unevenness height differences of 10 to 20μ, and different inclination angles. There is. As shown in FIG. 2, the image forming body 10 formed in this manner can be incorporated into a predetermined portion of the card base material 12 via the adhesive layer 11 to display complex information such as the hologram image 2 and display information 4. Therefore, counterfeiting of cards can be reliably prevented. Also, hologram image 2
The display information 4 consisting of the line-shaped uneven pattern groups 4a to 4f has a groove pitch width of about 50 times and a height difference of the unevenness of about 20 times, so that each of the hologram image 2 and the display information 4 can be clearly seen. Can be displayed. Moreover, the image forming body 10 can be manufactured using the linear uneven pattern 4a using the conventional foil stamping method or intaglio printing.
This can be easily carried out by simply employing the formation process of ~4f and the hologram processing process.

[Effects of the Invention] As explained above, the image forming body of the present invention is easy to manufacture, can display multiple types of information, and complex information such as images of people, landscapes, etc. It is also highly effective in preventing counterfeiting.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a schematic configuration of an embodiment of the present invention, and FIG. 2 is a sectional view of a card incorporating an image forming body of the embodiment. 1... Sheet-like substrate, 2... Hologram image,
3... Protective layer, 4... Display information, 10... Image forming body, 11... Adhesive layer, 12... Card base material.

Claims (1)

[Scope of utility model registration request] A hologram image formed in a predetermined area on the surface of a sheet-like substrate having metallic luster and consisting of grooves with a groove pitch of 0.5 to 2 μm and a height difference of 0.5 to 1 μm, and at least a portion of the hologram image overlaps the hologram image. The groove pitch is 60.
1. An image forming body comprising display information consisting of a group of line-shaped uneven patterns having a predetermined inclination angle of 90 μm to 90 μm and a height difference of 10 to 20 μm.