JPH07276865A - Id card - Google Patents

Abstract

PURPOSE:To prevent forgery or alteration by forming a pattern by the receiving layer formed on the surface of a substrate. CONSTITUTION:After a receiving layer 2 is formed on a substrate 1, a desired printing layer 3 is formed on the receiving layer 2 by a sublimation type thermal transfer method. Ink is thermally transferred to the surface of the receiving layer by various printing methods to appear as a pattern such as a desired character. If a pattern is formed by the receiving layer itself having the printing layer 3 formed thereon, the pattern such as a character visually looked by the printing layer and the pattern visually looked by the receiving layer are developed contrastingly. Therefore, even if printing is again performed, the pattern of the receiving layer can not be removed or it is difficult to again form the same pattern after removal and, therefore, forgery or alteration becomes difficult.

Description

Detailed Description of the Invention

[0001]

The present invention relates to an ID card (Id
entification card) and other various cards.

[0002]

2. Description of the Related Art Various cards such as cash cards and credit cards of financial institutions and identification cards such as schools, companies, and car licenses are widely used, but they involve the risk of forgery and tampering. Various preventive measures have been taken. Especially in the case of ID cards such as identification cards, the person's photograph and signature are attached or written on the card to identify the person.

[0003]

However, in the conventional ID card, as shown in FIG. 4, the receiving layer 2 is formed on the entire surface of the substrate 1 and then the printing layer 3 is formed on the surface of the receiving layer 2. , The characters, figures, and patterns were treated only by this printing. Therefore, with the development of printing technology, tampering with removing the receiving layer or the printing layer and forming the receiving layer and the printing layer again becomes clever, and it becomes possible to replace the photo or remove and reprint the print, and There was a good fear that it could not be distinguished from fake.

The present invention has been made in view of the above problems of the prior art. By forming a receiving layer on the surface of a substrate, a pattern is formed by the receiving layer, whereby forgery or falsification is performed. The purpose is to prevent.

[0005]

In order to achieve the above object, the ID card of the present invention has a receiving layer formed on at least one surface of a transparent substrate, and then a printing layer is formed on the surface of the receiving layer. In this ID card, patterns such as characters, figures and symbols are formed by the receiving layer. In this case, it is preferable that the receiving layer is formed on both surfaces of the substrate, and the patterns formed on the respective surfaces of the receiving layer overlap and coincide with each other.

[0006]

When an ID card is printed, it is printed by a printing method such as a sublimation thermal transfer method through the receiving layer. However, like the ID card of the present invention, the printing layer is formed on the receiving layer itself. If various patterns are formed on the upper surface, the patterns such as characters visualized by the printing layer and the patterns visualized by the receiving layer will appear in contrast. Therefore, even if the printing is performed again, the pattern of the receiving layer cannot be removed, or it is difficult to form the same pattern again after removing the pattern, which makes it difficult to forge or falsify. Moreover, if the patterns formed by the receiving layer are matched on both sides of the substrate, it is possible to further prevent forgery and falsification.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing an ID card according to an embodiment of the present invention, and FIG. 2A is a cross-sectional view of an essential part for explaining a laminated relationship of a substrate, a receiving layer and a printing layer of the same embodiment, (B)
Is a front view, and FIG. 3 is a cross-sectional view of an essential part of an ID card showing another embodiment of the present invention.

In the present embodiment, the present invention will be described by taking an ID card as an example, but the present invention is not limited to an ID card and can be applied to any card that is desired to prevent forgery and falsification. The ID card according to the present embodiment includes the substrate 1 having a certain degree of rigidity, and can be made of various synthetic resins such as polyester resin, vinyl chloride resin, polyethylene terephthalate, and polycarbonate. In addition to synthetic resins, metal or non-metal materials can be used depending on the application. Board 1
Conditions regarding size, thickness, shape and other forms of can be modified according to each application for which the ID card is used,
It is also possible to form a magnetic layer for storing information or to embed an IC chip or the like.

A receiving layer 2 is formed on the front and back of the substrate 1 as shown in FIG. 2 (A). The receiving layer 2 is made of, for example, a cellulose ester resin, a polyester resin, or the like in consideration of the compatibility with the above-mentioned material constituting the substrate 1.
Various synthetic resins such as vinyl chloride resin and polycarbon resin can be used. This receiving layer 2 is, for example, 1
Although formed with a thickness of about 0 μm, a pattern is formed with the receiving layer in this embodiment. That is, a desired mask is interposed when applying the above-mentioned various materials, and a region Y where the receptive layer is formed and a region X where the receptive layer is not formed are formed.
For example, in the ID card shown in FIG. 1, the pattern 4 drawn with a dotted line in the center is a region where the receiving layer 2 is not formed, and the receiving layer 2 is formed in the other regions.

In particular, in this embodiment, the pattern 4 shown by the dotted line in FIG. 1 is formed on both surfaces of the substrate 1 so that the patterns on the front and back sides overlap and coincide with each other. This state is shown in FIG. 2A, but since the printing layer 3 is not formed in the region X where the receiving layer 2 is not formed as described later, the receiving layer 2 is not formed after all. In the region X, the substrate 1 is exposed as it is, and the color and transparency of the substrate 1 are visually recognized as they are. The pattern 4 formed by the receiving layer 2 is not limited to that shown in FIG. 1, and the more complicated and fine the pattern of characters, symbols, figures, etc., the more difficult it is forgery and falsification. It goes without saying that

Further, as shown in FIG. 2 (A), when the patterns of the receiving layer 2 formed on the front and back sides are matched with each other, the area X where the receiving layer is not formed and the receiving layer are formed and printed. The contrast of the color and the transparency with the area Z where the layer 3 is formed becomes clearer, which is advantageous in identifying the ID card, but in the present invention, it is necessary to match the patterns 4 of the front and back receiving layers 2 with each other. There is no. For example, as shown in FIG. 3, the pattern 4 may be formed with the receiving layer 2 only on one side where the printing layer 3 is formed, and the receiving layer 2 may be formed on the entire other side. Even in this case, the contrast between the region Z where the printed layer 3 is formed and the region X where the substrate 1 is directly exposed is developed, and the pattern printed and the pattern formed by the receiving layer can be distinguished from each other. Tampering becomes extremely difficult. In addition to the embodiment shown in FIG. 3, the ID card may be constructed by intentionally shifting the pattern of the receiving layer formed on the front surface and the pattern of the receiving layer formed on the back surface. The formation of the pattern by such a receiving layer may be selected variously according to the use of the ID card.

After forming the receiving layer 2 on the substrate 1, a desired printing layer 3 is formed by a sublimation thermal transfer method. The ID card shown in FIG. 1 is printed with personal photographs, card names, personal names, characters such as company names, patterns such as figures and symbols.
The printing method of the present invention is not particularly limited, but gravure printing, silk screen printing and the like are suitable when the pattern is a design. The ink is thermally transferred onto the surface of the receiving layer 2 by such various printing methods, and appears as a desired pattern such as characters. However, the printing layer 3 is not formed in the region X where the receiving layer 2 is not formed, the color of the substrate 1 appears as it is, and the pattern such as characters is interrupted. Therefore, in forming the pattern by the receiving layer 2, it is necessary to consider the relationship with the printed pattern on the surface of the receiving layer 2, but if the region X where the receiving layer 2 is not formed is made thin. The present inventor has confirmed that the printed pattern can be sufficiently visually recognized.

It should be noted that the embodiments described above are described for facilitating the understanding of the present invention, and not for limiting the present invention. Therefore, each element disclosed in the above-described embodiments is intended to include all design changes and equivalents within the technical scope of the present invention.

For example, although the color and transparency of the substrate and the receiving layer are not mentioned in the above-mentioned embodiments, in addition to the formation of the pattern by the receiving layer, the contrast of the color and the transparency of the substrate and the receiving layer may be used. it can. Since the color and transparency of the substrate and the receiving layer can be prepared by adding a pigment to the material forming the substrate and the receiving layer or by adding various additives, for example, by using a coloring material for the substrate, You may make it express the pattern by a receiving layer with the contrast of a color and the color of a printing layer. This makes it more difficult to forge and falsify, and is preferably used for identifying an individual such as an ID card.

[0015]

As described above, according to the present invention, since a pattern other than the printing layer is expressed by forming a desired pattern by the receiving layer, it becomes difficult to forge or falsify such an ID card, Safety is improved.

[Brief description of drawings]

FIG. 1 is a front view showing an ID card according to an embodiment of the present invention.

FIG. 2A is a cross-sectional view of a main part for explaining the stacking relationship of a substrate, a receiving layer, and a printing layer of the embodiment, and FIG.

FIG. 3 is a cross-sectional view of an essential part of an ID card showing another embodiment of the present invention.

FIG. 4 is a sectional view showing a conventional ID card.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Substrate 2 ... Receptive layer 3 ... Printing layer 4 ... Pattern by receiving layer X ... Area where receiving layer is not formed Y ... Area where receiving layer is formed Z ... Area where printing layer is formed

Claims (2)

[Claims] 1. An ID card in which a receiving layer is formed on at least one surface of a transparent substrate and then a printing layer is formed on the surface of the receiving layer, wherein patterns such as characters, figures, and symbols are formed by the receiving layer. ID card characterized by having done. 2. The receiving layer is formed on both sides of the substrate,
The ID card according to claim 1, wherein the patterns on the respective surfaces formed by the receiving layer are overlapped and coincide with each other.