JP2009245189A - Authenticity discrimination instrument and method for printed matter for voucher such as ticket - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily discriminate authenticity by viewing chemical light emission when the one with a positive catalyst charged in the surface of a ticket 1 is subjected to luminol reaction, even in daytime when external rays of light are bright. <P>SOLUTION: A ceiling surface section 3 of an authenticity discriminating instrument 2 is formed of light shielding glass which is subjected to light shielding treatment having such characteristics that external rays of light are prevented from entering the instrument to put the inside of the instrument into a bright state, and that internal rays of light are allowed to go to the outside. Thus, the inside of the instrument is turned to a dark state even in daytime when it is bright, and the precision of authenticity discrimination is improved by observing this. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention belongs to the technical field of authenticity determination tools and authenticity determination methods for printed vouchers such as tickets, express tickets, limited express tickets, reserved seat tickets, admission tickets, gold tickets, meal tickets, etc. It is.

Today, printed tickets such as tickets, express tickets, limited express tickets, reserved seat tickets, admission tickets, cash vouchers, meal tickets, etc. are issued. It is. Therefore, for example, a color former is applied to the surface of a ticket, while a dye that reacts with the color former is added to the ink used for the stamp, and the color change of the card substrate at the portion where the stamp is pressed. Is known to determine whether a card is true or false (true cancer) (for example, Patent Document 1).
However, today, there are many things that color the entire surface of the printed matter such as tickets, and when the authenticity is determined by color development as in the above-mentioned conventional one, the color preliminarily applied to the entire surface of the printed matter and the authenticity It is assumed that the color for discrimination is confusing. In such a case, there is a problem that true / false discrimination is difficult. In addition, since the part where the stamp is pressed is colored, it is overlooked that there is a mechanism for preventing counterfeiting simply by confirming this color development state, and the counterfeiter notices this and intentionally stamps with the ink of the corresponding color There is a problem that it is counterfeited.
Therefore, cobalt ions, which are positive catalysts for the luminol reaction, are charged on the surface of the voucher printed matter, and when authenticity is required, an alkaline solution of luminol containing hydrogen peroxide is attached, and the presence or absence of luminol emission is determined. In this case, when the external light is strong and it is difficult to confirm the light emission state, a box-shaped shading hood is used to avoid the intrusion of external light (Patent Document) 2).
JP-A-6-55882 JP 2003-85613 A

  However, even in the case of using the light shielding hood, in the end, the light that passes through the optical filter that selectively transmits light around 425 nm, which is the maximum wavelength of luminol emission, is to be confirmed. It is difficult to see darkly because it is narrowed down, especially in bright places such as daytime, and there is a problem that the present invention does not solve.

The present invention has been created in view of the above circumstances and has been created for the purpose of solving these problems, and the invention of claim 1 determines authenticity of a printed voucher provided with a chemiluminescent material. The authenticity determination tool is provided with a one-way light shielding material that blocks external light from entering the device and does not prevent internal light from entering the device. This is a tool for determining the authenticity of the printed ticket such as a characteristic ticket.
The invention according to claim 2 is a determination method for determining the authenticity of a printed document with a chemiluminescent material, wherein the authenticity determination method blocks external light from entering the tool, This is a method for determining the authenticity of printed matter such as a ticket, characterized by being visually recognized through a light-shielding material in one direction that does not prevent light from entering the device.

  According to the invention of claim 1 or 2, it is avoided that outside light enters the authenticity determination tool and brightens the inside, and light by chemiluminescence is emitted in a dark state. This can be observed through the light shielding material, and authenticity determination can be ensured even in bright daytime, and the determination accuracy is improved.

Next, embodiments of the present invention will be described with reference to the drawings. The chemiluminescent substance used in the present invention is represented by luminol (C ₈ H ₇ N ₃ O ₂ : 5-amino-2,3-dihydro-1,4-phthalradione (3-aminophthalic acid hydrazide)). Luminol is solubilized with an alkaline solution, and chemistry such as cobalt chloride (II) (CoCl ₂ ), copper sulfate (II) (CuSO ₄ ), or hemin (C ₃₄ H ₃₂ O ₄ N ₄ Fe ^III Cl). When oxidized with an oxidizing agent (oxygen) such as hydrogen peroxide or hypochlorite in the presence of a positive catalyst for causing a luminescent reaction, yellow-green chemiluminescence is exhibited.
Such a chemiluminescent material (chemiluminescent substance) is not limited to luminol, but is isoluminol, N-ethylisoluminol, N- (4-aminobutyl) -N-ethylisoluminol hemisuccinimide, N- ( There are luminols such as 6-aminohexyl) -N-ethylisoluminol, and further, lophine, lucigenin, peroxalate, and the like, which can be arbitrarily selected from these chemiluminescent substances, but luminol, isoluminol Is preferable in terms of stability and quantum yield, and luminol is particularly preferable when the influence on the human body is considered.

  On the other hand, what is selected from the above-mentioned normal catalyst is charged on the front surface (including the back surface, the same applies hereinafter) of printed matter such as tickets. Then, a luminol solution (for example, luminol-sodium hydroxide-hydrogen peroxide solution or luminol-sodium hydrogen carbonate / sodium carbonate-hydrogen peroxide) prepared (including preparations described later) is formed on the surface of the prepared voucher printed matter. There is a solution. The same applies hereinafter) is sprayed on the surface of the voucher printed matter and applied by brushing or the like, and the light emission state of the voucher printed matter is confirmed using an authenticity determination tool.

Although it is a specific charging method to the printed matter of the positive catalyst, when the printed ticket is a ticket 1 as shown in FIG. 1, the charging portions 1a, 1b, 1c are, for example,
(1) Arbitrary symbols and marks are printed with a normal catalyst in advance on the ticket surface during production (manufacture), or printed together with characters in addition to ink.
(2) A positive catalyst is added to the ink for printing the necessary characters and the like on the ticket 3 at the time of ticketing (in the case of the thermal printing system, the thermal head is provided with a positive catalyst printing function, A positive catalyst is added to the thermal transfer ribbon in advance).
(3) When the ticket is issued, the positive catalyst is printed at an arbitrary position on the front and back of the ticket, or is pushed with a rubber stamp or the like.
(4) Add a positive catalyst to the ink to be stamped at the ticket gate (In an automatic ticket gate, a thermal head is provided with a positive catalyst printing function, or a positive catalyst is added to the thermal transfer ribbon in advance) .
(5) A positive catalyst is added to the ink to be stamped at the time of ticket inspection.
(6) A positive catalyst is added to the ink to be stamped when the vehicle gets off.
Etc. can be charged at any time. In other words, the preparation of the positive catalyst is not limited to printing of tickets, etc., and can be performed as needed even during production or after ticketing.
The positive catalyst can be charged as an aqueous solution as described above, but its concentration can be on the order of pmol L ⁻¹ (minus the first power of picomolar), so even if it is charged in tickets, it is charged with the naked eye. Therefore, it is impossible to discriminate whether or not the printed matter is indistinguishable from a normal one, and there is no fear that it can be seen when and where the anti-counterfeiting processing is being performed.

  And when authentic confirmation is requested, for example, when the printed matter of the voucher is tickets, and there is a request for refund of the tickets from the passenger, etc., the prepared luminol solution is attached to the tickets, Whether the light is emitted or not is judged as true or false. Therefore, by using the authenticity judging tool 2 as shown in FIG. 2, it can be easily judged even in the presence of strong external light.

  The authenticity determination tool 2 has an open lower end surface and is formed into a container-like body (lid-like body) by the ceiling surface portion 3 and the cylindrical side surface portion 4. And in this Embodiment, the ceiling surface part 3 is comprised with the light-shielding plate, and the side part 4 is comprised with the translucent material. The light shielding plate constituting the ceiling surface portion 3 in the present embodiment blocks outside light and transmits only a part (or all) of light but does not block internal light ( Some of them may be shielded from light, but so-called light-shielding glass is used. However, the light-shielding material is kneaded into a resin material, or the light-shielding film is affixed to a translucent plate. Of course, there is no problem.

  In this case, the ticket 1 subjected to the luminol reaction is placed on a smooth plate-like body, and the placed ticket 1 is covered with the authenticity determination tool 2. And when looking through the ceiling surface part 3, since the outside light enters into the tool 2 from the ceiling surface part 3, the inside of the tool 2 is not brightened and a dark state can be maintained. Become. Thus, the light of luminol emitted from the ticket 1 in this dark state is recognized by looking through the ceiling surface part 3, and the accuracy of authenticity determination is improved, and authenticity determination is facilitated.

  In the embodiment of the present invention configured as described above, when the authenticity of the ticket 1 is determined, if the ticket 1 is preliminarily provided with a luminol positive catalyst, the luminol sodium hydroxide solution and excess If a luminol reaction solution prepared with a hydrogen oxide solution is applied to the card surface, the luminol reaction proceeds and chemiluminescence occurs, but the light emitted from the chemiluminescence is recognized in a bright atmosphere as in the daytime. In such a case, it is difficult to judge whether it is true or false. In such a case, if the authenticity determination tool 2 is covered with the ticket 1, bright external light is prevented from entering the container and the tool 2 can be kept dark without being brightened. Thus, since chemiluminescence due to the luminol reaction can be confirmed through the ceiling surface portion 3 in this dark state, the detection accuracy can be improved, and the authenticity determination system can be improved.

  Needless to say, the present invention is not limited to the above-described embodiment, and the authenticity determination container 2 can be formed so as to cover the voucher printed matter for determining the authenticity. In particular, the light shielding process is not limited as long as the whole or a part of the authenticity determination container is applied.

It is a front view of a boarding ticket. (A)-(C) It is the front view, top view, and perspective view of a true / false discrimination container.

Explanation of symbols

1 ticket 1a, 1b, 1c preparation section 2 authenticity determination tool 3 ceiling surface section 4 side section

Claims (2)

  A discrimination tool for discriminating the authenticity of a printed document with a chemiluminescent material, wherein the authenticity discrimination tool blocks outside light from entering the tool and allows the internal light to enter the tool. A tool for determining the authenticity of printed matter such as vouchers, characterized by being provided with a light-shielding material in one direction that does not hinder.   A determination method for determining authenticity of a printed document with a chemiluminescent material, wherein the authenticity determination method blocks external light from entering the device and allows internal light to enter the device. A method for discriminating authenticity of printed matter such as tickets, which is made visible through a light-shielding material in one direction that does not interfere.

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