JPH0632092A - Forgery preventive sheet - Google Patents

Abstract

PURPOSE:To provide a forgery preventive sheet for preventing forgery by extracting shade of a seal, a signature, etc., of a description document in which predetermined descriptions such as a check, a deposit certificate, a passport, a certificate of a seal, etc., are displayed and transferring them to other description document. CONSTITUTION:A linear display 3 is provided by the same or stronger density than that of descriptions 2 on a part to be written of a description document 1 in which descriptions such as a shade of a seal, a signature, etc., are displayed for preventing forgery.

Description

Detailed Description of the Invention

[0001]

The present invention relates to a check, a bill, a certificate of deposit, a deposit balance certificate, a pledge, an identification card, a passport, a resident card, a family register, a seal certificate, a stock certificate, a bond,
Imprint, signature, rubber stamp of the issuer, which is stamped on the tax payment certificate and other written documents showing certain items to be stated,
The present invention relates to an anti-counterfeit sheet for preventing forgery performed by extracting a print indication or the like and transferring it to another written document.

[0002]

2. Description of the Related Art Conventionally, such as checks, bills, certificates of deposit, deposit balance certificates, pledge certificates, identification cards, passports, resident's cards, family register, seal certificates, stock certificates, bonds, tax certificates, etc. A large number of written documents describing certain matters have been used in recent years, and play an extremely important role in maintaining the social economic distribution order and legal order.

On the other hand, recently, a color copying machine,
Due to the breakthrough of technological advances such as simple printing machines, extremely sophisticated, high-quality and inexpensive products are being sold. As a result, a copy of the imprint, signature, issuer's name indication, etc., copied from the written document describing certain items as described above, and copied or pasted on another written document of the same form. Forgery is carried out by further color copying.

With the widespread use of color copiers, simple printers, etc., as described above, it is possible for a person who does not have a special technique to perform such actions extremely easily without using any special technique. ing.

As a means for preventing such counterfeit crimes, in the vicinity of the items for the purpose of preventing forgery,
It is displayed using a special ink that develops color only when irradiated with an ultraviolet lamp, and a copy is used that does not develop color even when irradiated with an ultraviolet lamp.

[0006]

However, the method using the above-mentioned special ink has a problem in reliability due to discoloration, fading and the like when the written document is stored for a long period of time. In addition, an ultraviolet lamp is required for authenticity confirmation,
Authenticity could not be easily determined anywhere, and it took time to confirm.

The present invention is a color copying machine as described above.
Alternatively, it is intended to surely prevent the counterfeit crime by extracting the imprint, signature, etc. by the simple printing machine by a simple and inexpensive means.

[0008]

In order to solve the above-mentioned problems, the present invention has the same density as the described items in the planned writing part of the document to be written and displayed for the purpose of preventing forgery. Lines are displayed at a higher density.

The line display may be a straight line or a curved line.

The line display may be a single line or a display of a plurality of lines.

The line display may be displayed in a different color from the writing display.

The items to be described may be an amount of money, a signature, a seal image, or the like.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. (1) is a written document, and this written document (1) is a written matter (2) having a certain economic value, Also, the item (2) that proves certain facts is displayed on the surface.

As the written document (1) displaying the written items (2) having a certain economic value, there are bills, checks and the like. In addition, as the written document (1) displaying the stated matter (2) that proves certain facts, a deposit certificate, a deposit balance certificate, a pledge certificate, an identification card, a driver's license, a passport, Resident's card, copy of family register, seal certificate, stock certificate, bond, tax certificate, etc.

Then, for example, when attempting to forge a seal imprint of the described matter (2) from these written documents (1),
Copy the officially issued statement (1) by color copy. Then, the imprinted portion of the copied entry matter (2) is cut off and removed, and this is a legitimate entry document (1) or entry matter that is not stamped.
Paste the writing of (2) on the forgery written document (1) by a color copier that has not been written. By making a color copy of this again, it is possible to forge the written document (2).

However, in the present invention, the written matter (2) for the purpose of preventing forgery should be written and displayed, and the line is displayed in the planned writing area with the same density as the density of the written matter (2) or stronger. (3) is given. Therefore, if the description (2) such as the imprint and the signature is copied, the line display (3) is also copied at the same time.

[0017] And, the description items with this line display (3)
When pasting the copied part of (2) onto another written document (1), the written document is forged as a line display (3) of the copied one.
It is very difficult to attach so that the line display (3a) of (1a) surely matches. Therefore, as shown in FIG. 2, the line display (3) portion is very likely to deviate from the line display (3a) portion displayed on the written document (1a) to which the line is attached. If the line displays (3) and (3a) are slightly misaligned, even a normal person can easily visually confirm the authenticity without using a special tool such as an ultraviolet lamp.

The line display (3) may be one line,
In order to increase the difficulty of forgery, it is preferable to display a plurality of lines. The line display (3) may be a straight line,
By displaying a curved line as shown in FIG. 3, it becomes more difficult to stick to the curved line than in the case of a straight line, and the forgery prevention effect is enhanced.

Further, the line display (3) may have different display intervals, colors, shapes, etc. depending on the written document (1) to be issued in fixed quantity, or different for each month and date of issue. If this is the case, it will be possible to further improve the prevention of counterfeit crimes.

It is also possible to display the line display (3) in a color different from that of the item (2). For example, the description
If the imprint of (2) is displayed in red, the line display (3) is displayed in green. With this display, when the imprinted portion is copied by color copying, the green line display (3) is also copied at the same time. Then, when the imprinted portion that is this description item (2) is cut out and pasted on another description document (1a), the line display (3a) green of this description document (1a) and the line display to be pasted ( A subtle color change from the green of 3) can be easily discriminated by the continuous line displays (3) and (3a).

Further, when this is copied, it is easy to check the color misregistration, and if the color can be shifted for each issuing date or a different one can be used for each issuing month, the effect of preventing forgery is further enhanced. be able to.

When the line display (3) is displayed in a color different from that of the description item (2), the description item (2) can be confirmed in a normal state even if the density of the line display (3) is increased. Moreover, this confirmation work becomes easy.

[0023]

Since the present invention is configured as described above, when the copied writing display is pasted on another written document, the line display of the copied document and the line display of the forged written document are matched. As a result, it becomes very difficult to attach and even if the line display is slightly misaligned, even an ordinary person can easily visually confirm the authenticity without using a special tool such as an ultraviolet lamp.

As in the case of using a special ink,
It is highly reliable with no discoloration or fading due to long-term storage, does not require a specific device or the like to check the authenticity, can easily determine the authenticity anywhere, and does not require any trouble to confirm.

A forgery crime that is performed by extracting a seal imprint, a signature or the like by a color copying machine or a simple printing machine can be reliably prevented by a simple and inexpensive means.

[Brief description of drawings]

FIG. 1 is a plan view of a written document.

FIG. 2 is a partially enlarged view of a seal imprint portion.

FIG. 3 is a plan view of an embodiment with different line displays.

[Explanation of symbols]

 1 description document 2 description items 3 line display

Claims (5)

[Claims] 1. A forgery characterized in that a line display is made at a density which is the same as or higher than the density of the described matter in a planned writing area of the document where the described matter for the purpose of preventing forgery is to be written and displayed. Prevention paper. 2. The anti-counterfeit paper according to claim 1, wherein the line display is a straight line or a curved line. 3. The forgery prevention paper according to claim 1, wherein the line display is a single line or a plurality of lines are displayed. 4. The anti-counterfeit paper according to claim 1, wherein the line display is displayed in a color different from that of the writing display. 5. The anti-counterfeit paper according to claim 1, wherein the items to be described are an amount of money, a signature, an imprint, and the like.