JP2000256995A - Stock paper and securities - Google Patents

Abstract

(57) [Summary] [Problem] To provide security paper or securities that are difficult to forge. A security paper is produced by exposing a part of the thread by making a white gap in the paper containing the thread, and a security is issued using the security paper.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to securities (commodity certificates, stock certificates, certificates, checks, promissory notes, etc.) and security papers used for issuing the same.

[0002]

2. Description of the Related Art Conventionally, as one method for preventing counterfeiting of securities, there is white clearance. This is also called a white watermark, in which a thinner portion is provided on the security paper so that patterns such as characters and figures appear when the security paper is viewed through.

[0003] However, there is a risk that the white gap can be easily forged by the gap printing. In addition, counterfeiting in which the security paper itself with white clearance is manufactured has occurred.

[0004] Another conventional method for preventing counterfeiting of securities is a window thread. In order to explain the window-opening thread, first, a thread-containing sheet will be described. FIG. 1 shows an example of threaded paper. The thread 1 is embedded in the sheet at a position indicated by a dotted line in FIG. Thus, the thread (thread),
The embedded paper is called threaded paper. As the thread, a metal foil, a metal-deposited plastic film, a printed plastic film, a hologram, or the like is used. The window paper with threaded window shown in FIG. 2 is obtained by opening the window 2 and exposing a part of the thread 1 on the thread paper of FIG. In FIG. 2, the window can be opened and the exposed part 3 of the thread can be seen. The thread exposed by opening the window on the thread sheet in this way is called a window opening thread.

[0005] However, since the window opening thread is generally a simple square window, there is a possibility that the window opening thread can be easily forged by foil stamping.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks of the related art, and has as its object to provide security paper or securities that are difficult to forge.

[0007]

In order to achieve the above-mentioned object, according to the first aspect of the present invention, a part of the thread is exposed by white-cutting the threaded paper. The security paper is characterized by the following.

According to a second aspect of the present invention, there is provided a security sheet characterized in that a part of the thread is exposed by white-cutting the thread-containing sheet and printing is further performed.

According to a third aspect of the present invention, there is provided the security paper according to the first or second aspect, wherein the white space is a complicated pattern such as a character or a figure.

[0010] In the invention according to claim 4, the white space is a character, and the character has a thickness of 3 to 8 mm. Paper.

According to a fifth aspect of the present invention, there is provided the security paper as set forth in any one of the first to fourth aspects, wherein the width of the thread is 1.2 to 3.6 mm. .

According to a sixth aspect of the present invention, there is provided a security issued using the security sheet according to any one of the first to fifth aspects.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a threaded paper,
By exposing complex patterns such as characters and figures to white, the shape of the exposed thread is complicated,
Securities paper that has been difficult to forge, and securities issued using the security paper.

An embodiment of the present invention will be described with a specific example. For example, assume that there is a thread-containing sheet in which a thread 5 is embedded as shown in FIG. Since the thread 5 cannot be seen, it is represented by a dotted line. For example, when the white paper 4 of the character A as shown in FIG. 4 is made on the thread-containing paper, the thread part 6 where the white paper 4 and the thread 5 overlap and are exposed can be seen.

[0015] Even if the security paper of the present invention is to be counterfeited by penetrating printing, the thread cannot be exposed by penetrating printing. In addition, the securities paper of the present invention,
The complicated shape of the exposed thread makes it difficult to forge by foil stamping.

There are restrictions on the thickness of characters that can be inserted into a thread on white. One reason is that if the characters are too thin, the threads to be exposed may be filled with paper fibers. Another reason is that if the characters are too thick, the shape of the exposed thread portion becomes monotonous and the forgery prevention effect is weakened. As a result of the experiment, the thickness of the character is desirably 3 to 8 mm.

Furthermore, there is a restriction on the width of the thread (see FIG. 3, 7). One reason is that if the width of the thread is too narrow, it will be difficult to read the shape of the exposed thread portion. If the width of the thread is too wide, the shape of the exposed thread becomes monotonous,
The weakening of the anti-counterfeiting effect is another reason.
As a result of the experiment, the width of the thread is desirably 1.2 to 3.6 mm.

The thread is made of a metal foil, a metal-deposited plastic film, a printed plastic film, a hologram, or the like.

[0019] White paper is inserted into the threaded paper.
After exposing a part of the thread, various prints are given,
This may be used as a security paper.

There are various methods for issuing securities using the security paper of the present invention. For example, a security paper may be printed and issued as securities, or
By handwriting, word processor, typewriter, stamp, etc.
The securities may be issued by filling in a security form.

[0021]

As can be understood from the above description, the present invention has the following effects.

First, since the thread cannot be exposed in the penetration printing, there is an effect that forgery due to the penetration printing can be prevented.

Second, since the thread is embedded in the paper and white thread is inserted into the thread, the security paper itself cannot be counterfeited by the conventional white clearance.

Third, since the shape of the exposed portion of the thread is more complicated than that of the conventional window-opening thread, it is difficult to forge by foil stamping.

Fourth, since a thread is embedded in a sheet and white clearance is made on the thread, the thread and the white clearance can be viewed at the same time, and it is easy to determine whether the security paper or the security is authentic. There is also an effect.

Therefore, the present invention has an effect that it is difficult to forge a security paper or a security and it is easy to determine the authenticity.

[Brief description of the drawings]

FIG. 1A is a plan view of threaded paper. (B)
FIG. 2 is a cross-sectional view of a threaded paper crossing a thread.

FIG. 2A is a plan view of a sheet with window-opening thread.
(B) is sectional drawing which crosses the window opening thread of the sheet containing window opening thread.

FIG. 3 is a plan view of threaded paper.

FIG. 4 is a plan view of a security sheet as an example of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Thread 2 ... Window 3 ... Thread part which opened and exposed the window 4 ... White clearance 5 ... Thread 6 ... Thread part which the white clearance and the thread overlapped and exposed 7 ... Width of thread

Claims (6)

[Claims] 1. A security sheet wherein a part of the thread is exposed by white-cutting the thread-containing sheet. 2. A security paper, wherein a part of the thread is exposed by white-cutting the thread-containing paper, and further printed. 3. The security paper according to claim 1, wherein the white space is a complicated pattern such as a character or a figure. 4. The method according to claim 1, wherein the white space is a character, and the character has a thickness of 3 to 8 mm.
3. The security paper according to any one of 3. 5. The thread has a width of 1.2 to 3.6 mm.
The security paper according to any one of claims 1 to 4, wherein 6. A security issued using the security paper according to any one of claims 1 to 5.