JPH10143072A - Forgery preventive seal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form voids in entry items of a copy when it is capied and to prevent entry items from being altered, by forming a sticky layer for coating and fixing the entry items on the rear surface of a transparent or translucent colored rear surface layer formed on the rear surface of a coating film. SOLUTION: On the rear surface of the coating film 2, a transparent or translucent colored layer 3 is formed to have a width narrower than the entry items, and the colored rear surface layer 9 is formed on the colored film 2 across the colored layer 3. The colored rear surface layer 9 is formed by printing or fixing a colored film. This colored rear surface layer 9 is fixed and formed on the rear surface of the coating film 2 across an adhesive layer 11 with the colored film. On the rear surface of the colored rear surface layer 9, the sticky layer 5 is further formed to coat and fix the entry items. Then, the colored film forming the colored rear surface layer 9 is formed of an easy- to-break film and then forging, alteration, etc., which are done by peeling off the coating film 2 coating the entry items can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to checks, bills, certificates of deposit, passbooks, certificates of balance of deposits, pledges, identification documents, passports, resident's cards, family registers, seals, certificates, Copy the stamped seal, signature, issuer's seal, printed indication, etc. stamped on the tax payment certificate or other written document, or extract it by processing with computer graphics etc. The present invention relates to a forgery-preventing coated film for preventing transfer or forgery of the written document itself.

[0002]

2. Description of the Related Art Conventionally, checks, bills, deposit certificates, passbooks, balance certificates of deposits, pledges, identification documents, passports, resident certificates, family registers, seal stamp certificates, stock certificates, tax payment certificates, etc. Description documents describing certain items have been used in large quantities in recent years, and have played a very important role in maintaining the economic distribution order and legal order of society.

On the other hand, recently, due to the remarkable advances in color copiers, monochrome copiers, simple printers, computer graphics, and the like, extremely sophisticated, high-quality, and inexpensive products have been sold. as a result,
Copy the seal, signature, issuer's name display, etc. from the written document that describes certain matters as described above, and transcribe or paste it on another written document of the same form, and further color copy Forgery is performed.

[0004] As described above, due to the widespread use of color copiers, monochrome copiers, simple printers, etc., as described above, a person who does not have any special technology can use such a machine without using any special technology.
It can be done easily.

[0005] As means for preventing such forgery crimes, there is a method for preventing counterfeiting,
A method of displaying characters, symbols, and the like with a special ink that develops color only when irradiated with an ultraviolet lamp is known. According to this method, forgery can be found because the copied matter does not develop color even when irradiated with an ultraviolet lamp.

However, the method using the above-mentioned special ink causes discoloration, fading, and the like when the written document is stored for a long period of time, and has a problem in reliability. In addition, an ultraviolet lamp is required for authenticity confirmation, and authenticity cannot be easily determined anywhere, and the confirmation is troublesome.

In order to solve such a situation and to prevent forgery by copying, such as imprints, signatures, and the display of the name of the issuer, without the need for special equipment such as an ultraviolet lamp, Japanese Patent Laid-Open Publication No. No. 259013 has been proposed. According to this method, a transparent or translucent film on which a hologram or a diffraction grating is formed, and a coated film provided with a transparent or translucent metal thin film layer are fixed to the surface of the described item to cover the described item. Things. In this method, when the items to be described are copied, as shown in FIG. 6, a blank portion occurs in the items to be described corresponding to the hologram image. Therefore, in order to prove that the contents are copied and to reproduce the described items without white spots, a high-level special technique is required, which has an advantage that reproduction is extremely difficult.

[0008]

However, in this method, the surface of a hologram or a film provided with a diffraction grating is
By covering the surface with a translucent paper or a film having fine irregularities on the surface, the reflection of the hologram or the diffraction grating disappears. For this reason, there is a drawback that when this is copied, as shown in FIG. 7, a clear copy without a hollow spot is obtained.

In order to solve the problems as described above, the present invention provides a translucent paper having a surface provided with minute irregularities, in which a hologram or a diffraction grating is covered with a forgery prevention seal. Even if the surface of the anti-counterfeiting seal is covered with a film or a film, when the copy is copied, a hollow portion is generated in the description of the copy. In addition, it is possible to surely cause the occurrence of these hollows without hindering visual confirmation of the described items. Then, it is made clear that this is a copied one, and it is extremely difficult to repair a hollow portion, so that forgery of the described items can be prevented.

[0010]

According to the present invention, a hologram or a diffraction grating is provided on a transparent or translucent coated film for covering and fixing the items described for the purpose of preventing forgery in order to solve the above-mentioned problems. Forming a transparent or translucent colored layer with a width narrower than that described in the coated film, and forming a transparent or translucent colored back layer on the back of the coated film, on the back of the colored back layer, It may be formed by forming an adhesive layer for covering and fixing the items described.

The coloring layer may be formed by printing on the back surface of the coated film.

The colored layer may be formed by fixing the colored film on the back surface of the coated film.

[0013] The colored layer may be white.

[0014] The colored back layer may be formed by printing.

Further, the colored back layer may be a layer on which a colored film is fixed.

[0016]

Since the present invention has the above-mentioned structure,
When this is used to prevent forgery of the described items, the covering film is fixed to the surface of the described items for the purpose of preventing forgery, such as a sign, an amount display, an imprint, a rubber stamp of the issuer, and a printed display. Even with this fixing, the written matter such as the seal can be easily visually confirmed through the transparent or translucent covering film, the colored layer and the colored back layer. In the visual confirmation, there is no hindrance because the coated film, the colored layer and the colored back layer are formed to be transparent or translucent. Also, the hologram and the diffraction grating do not hinder visual confirmation of the described items. The hologram and the diffraction grating function clearly due to the presence of the colored back surface layer provided on the back surface of the coated film, and the hollow state can be strongly expressed.

When the above-mentioned items covered with the coating film on which the colored layer and the colored back layer are adhered are copied as they are, the entire colored layer portion is copied in a state where the colored layer is partially hollow or unclear. Further, in the hologram or the diffraction grating portion, the description of the corresponding portion is hollowed out like a patch. Therefore, it is possible to clearly determine that the copied video is a copied one.

Further, when the surface of the coated film is covered with a cover film such as translucent paper or film provided with fine irregularities on the surface, the spot-like hollow corresponding to the hologram or the diffraction grating portion disappears. However, since the colored layer portion overlaps with the cover film, the items described become invisible when copied, and the hollow state is further ensured. Restoration of the description that caused the hollow using computer graphics or the like requires a high level of special technology, and is extremely difficult and cannot be forged.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. (1) is a description item, and this description item (1) is a description document having a certain economic value, It is displayed on written documents that prove the facts.

[0020] Documents indicating the items (1) having a certain economic value include bills and checks. In addition, the documents showing the items (1) proving certain facts include a deposit certificate, a passbook, a certificate of balance of deposit, a pledge setting document, an identification card, a driver's license, a passport, a resident card, A copy of family register, seal certificate, stock certificate, tax payment certificate, etc.

In order to forge a description item (1) such as an imprint from these written documents, the legally issued written document is copied by color copying. Then, the copied item (1), such as the seal, is cut off and removed, and this is written in a legitimate written document on which no information such as a seal has been written, or on a color copier without the written item (1). , Attached to the forgery written document by a monochrome copier. The document can be forged by color-copying it again. In another method, forgery of an image of a description item is performed using computer graphics.

Matters to be described in this written document for the purpose of preventing forgery
As the coated film (2) to be coated and fixed on (1), an appropriate transparent or translucent film such as polyethylene terephthalate is used. And the hologram is put on this coated film.
(4) Or provide a diffraction grating. In addition, this coated film
On the back surface of (2), a transparent or translucent colored layer (3) having a width smaller than that of the item (1) is formed.

The colored layer (3) is formed by printing a transparent or translucent white color on the back surface of the coating film (2).
In the case of a dark color such as black, the colored layer (3) makes it difficult to visually confirm the described items. For this reason, a bright color is preferable, but a yellow color or the like is easily transmitted at the time of copying. Therefore, a white color is preferable. Of course, problems such as visual confirmation and copy transmission can be dealt with within a certain range by adjusting the shading even for black, yellow, or the like.

Further, the colored layer (3) may be formed by fixing a colored film via an adhesive layer (10) as shown in FIG. 2 without using printing.

This colored layer (3) is coated with a film (2).
To form a colored back surface layer (9). By forming the colored back layer (9) on the back surface of the coated film (2), the display can be made clearer than when the hologram (4) or the diffraction grating is not formed on the surface of the coated film (2). Can be done.

The colored back layer (9) is formed by printing or fixing a colored film. This colored back layer
(9) is fixedly formed on the back surface of the covering film (2) by the colored film via the adhesive layer (11). Also, colored back layer
On the back side of (9), an adhesive layer for covering and fixing the items described
(5) is formed. If the colored film forming the colored back layer (9) is formed of a film that is easily broken, the cover film (2) covering the item (1) may be peeled off, forgery, alteration, etc. Can be prevented.

That is, when the coated film (2) is peeled off, the colored film is broken, leaving a trace of the peeling off. Even if it is attempted to restore the damaged back surface layer (9) once, the color becomes darker if there is any overlap in the damaged part, and the color becomes lighter if there is a gap, and the fact that it peeled becomes clear. .

In the above-mentioned construction, when this is used for preventing forgery of the stated item (1), the coated film (2) is signed as shown in FIG. , Attached to the surface of the item (1), such as the rubber stamp of the issuer or the printed display. Even with this fixation, items such as seals
(1) is a transparent or translucent coated film (2), colored layer
Through (3) and the colored back layer (9), it can be easily confirmed visually as shown in FIG.

In this visual confirmation, the covering film (2), the colored layer (3) and the colored back layer (9) are transparent or translucent and do not hinder. The hologram (4) and the diffraction grating can also be visually confirmed, but this does not hinder the confirmation of the item (1). In addition, by providing the colored back layer (9), the hologram (4) and the diffraction grating can be converted to the colored back layer.
This can be clearly displayed as compared with the case where (9) is not provided.

Then, when the information (1) covered with the coating film (2) is copied as it is, as shown in FIG. 4, the corresponding portion (6) of the colored layer (3) is entirely hollow or unclear. Is copied. The hologram (4) or the diffraction grating portion has a corresponding portion as a patchy spot (7),
It becomes a hollow. Therefore, it is possible to clearly determine that the copied image is a copied one, and it is extremely difficult to restore the image by handwriting, computer graphics, or the like.

When the surface of the coated film (2) is covered with a cover film (8) such as translucent paper or film provided with fine irregularities on the surface, a hologram is formed as shown in FIG.
The void in the spot (7) corresponding to (4) or the diffraction grating portion disappears. However, the colored layer (3) covers the cover film.
Since it overlaps with (8), it is possible to further ensure the hollow state when copying.

It is extremely difficult to repair the written description that caused the hollow using handwriting, computer graphics, or the like, so that forgery cannot be performed.

[0033]

According to the present invention, as described above, even if the coated film is fixed to the surface of the described matter,
Entries such as seals and the like can be easily confirmed visually, and there is no trouble in the collation operation. When the items covered with the coated film are copied as they are, the entire colored layer portion becomes hollow or unclear, and the corresponding portion of the hologram or diffraction grating portion is hollowed out like a patch. , It is clear that it is a copy.

This hollow state appears more clearly as the hologram or diffraction grating is clearly displayed, but this object can be more effectively achieved by the presence of the colored back layer.

When the surface of the coated film is covered with a cover film such as a translucent paper or a film provided with fine irregularities on the surface, mottled holes caused by holograms or diffraction gratings disappear, but the colored layer is The parts ensure a hollow state. Then, it is extremely difficult to repair the written matter that caused the hollow using computer graphics, handwriting, or the like, so that forgery cannot be performed.

Also, it is possible to detect counterfeiting without using special equipment, and there is no discoloration or fading due to long-term storage as in the case of using a special ink such as an ultraviolet paint, and the reliability is high. Forgery prevention effect can be obtained.

In addition, since the coated film can be used by attaching it to a conventionally existing written document, it is possible to use the existing written document as it is to obtain a document having a high anti-counterfeiting effect. In addition, it is possible to prevent inexpensive forgery without wasting the existing written document itself.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an example of a coated film in which a colored layer and a colored back layer are formed by printing.

FIG. 2 is a cross-sectional view showing an example of a coated film in which a colored layer and a colored back layer are formed of a colored film.

FIG. 3 is a plan view showing a state in which the forgery prevention seal of the present invention is fixed to items described.

FIG. 4 is a plan view showing a state in which what is shown in FIG. 3 is copied as it is.

FIG. 5 is a plan view showing a state where the object shown in FIG. 3 is covered with a cover film and then copied.

FIG. 6 is a plan view showing a state in which items covered by a forgery prevention seal using a conventionally known hologram are copied.

FIG. 7 is a plan view showing a state where the object shown in FIG. 6 is copied after being covered with a cover film.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Description 2 Covered film 3 Colored layer 4 Hologram 5 Adhesive layer 6 Corresponding part 7 Spot 8 Cover film 9 Colored back layer

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI G09F 3/02 G09F 3/02 W

Claims (6)

[Claims] 1. A hologram or a diffraction grating is provided on a transparent or translucent coated film for covering and fixing an item described for the purpose of preventing forgery, and the film is transparent or translucent with a narrower width than the item described in the coated film. While forming a colored layer of, a transparent or semi-transparent colored back layer is formed on the back surface of the coated film, and on the back surface of the colored back layer, an adhesive layer for covering and fixing to the items described is formed. Characteristic anti-counterfeit seal. 2. The forgery prevention seal according to claim 1, wherein the colored layer is formed by printing on the back surface of the covering film. 3. The forgery prevention seal according to claim 1, wherein the colored layer is formed by fixing the colored film on the back surface of the covering film. 4. The forgery prevention seal according to claim 1, wherein the colored layer is white. 5. The forgery prevention seal according to claim 1, wherein the colored back surface layer is formed by printing. 6. The forgery prevention seal according to claim 1, wherein the colored back layer is formed by fixing a colored film.