JPH10886A - Printed matter, copy preventing method for the matter, ticket and truth or falsehood deciding method for the ticket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively prevent an illegal copy by displaying predetermined information by using ink reversibly discolored by at least one of heat received by an object read by an emitting light and heat received by a human body at the time of contact with the body. SOLUTION: A railway ticket 10 has a base material 11, a ground ting 12 printed on the material 11, and a mark 13. Ink of the mark 13 contains, for example, electron donative coloring organic compound, electron acceptive compound, discoloring temperature regulator and solvent. When an image of the ticket 10 is read by an image information reader, a surface of the ticket 10 receives heat from the reader, and the mark 13 is discolored. Accordingly, the image of the mark 13 cannot be read, and a copy of the ticket 10 is not copied with the image of the mark 10. Thus, the image of the ticket cannot be copied as it is to prevent its illegal copy.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printed matter having information displayed using an ink which is reversibly erased by heat, a method for preventing copying of the printed matter, and an ink which reversibly changes color by heat. The present invention relates to a ticket having displayed information and a method of determining the authenticity of the ticket.

[0002]

2. Description of the Related Art With the recent improvement in printing technology, a wide variety of printed materials have been supplied. The purpose of these prints is
First, by imparting novelty to printed matter, the catch-eye effect can be enhanced in the distribution process. Also, the second
In addition, in order to prevent the spread of confidential documents and the like, unauthorized copying is prevented. Third, in order to cope with the remarkable development of color copying technology today, it is to prevent forgery of printed matter.

Here, the following techniques are known for printed matter. As a first example, there has been known one in which a transfer type hologram is provided on a printed material in order to impart novelty to the printed material and enhance the catch-eye effect. Also,
As a second example, in order to prevent forgery of a ticket, a ticket printed with a discoloring ink that changes color in response to eraser ink or the like is known. As a result, for example, when erasing the boarding conditions (a boardable section, a boardable expiration date, and the like) of a ticket with eraser ink, the color of printing of a portion touched by the eraser ink changes.

Further, as a third example, there is known a method in which a latent image is printed with an ink which is colorless at room temperature but develops color by heating in order to prevent unauthorized copying of a printed material (Japanese Patent Laid-Open No. Hei. No. 211081). In this printed matter, when a copy is to be made, the latent image printed with the ink is colored by the heat of the irradiation light from the copying machine, and the latent image (“copy” or the like) is displayed on the copied matter. As a result, it is easy to determine whether or not the copy is a copy, and it is possible to prevent forgery of the print.

Further, as a fourth example, there is known a method in which a ticket or the like is printed using an ink whose color changes by heating (Japanese Patent Publication No. 58-69). Thus, the validity of the ticket can be determined by heating the ticket or the like and determining whether the color changes before and after the heating.

[0006]

However, in the above-described prior art, in the first example, there is a problem that providing a hologram on a printed material increases the cost. Also,
In the second example, when printing is performed using ink that changes color in response to eraser ink or the like, forgery of the ticket itself can be prevented, but color copying can be prevented. Therefore, when a copy is illegally created, forgery cannot be prevented.

On the other hand, in the third example, when a latent image is printed with the above-described ink, forgery by color copying or the like can be prevented, and it is easy to determine whether the image is a copy. However, in the case of a printed document such as a confidential document that is inconvenient to be distributed, even if the latent image is copied, it is copied to the extent that the original image can be read, so that illegal copying cannot be effectively prevented. There was a problem.

Further, in the fourth example, it is possible to reliably determine whether or not the copy is a copy, and to prevent unauthorized copying. There is a problem that an apparatus must be used, the determination becomes complicated, and a heating apparatus must be installed in all ticket gates.

An object of the present invention is to enhance the novelty of printed matter,
It is another object of the present invention to effectively prevent unauthorized copying and to easily and surely determine whether the copy is a copy.

[0010]

In order to solve the above-mentioned problems, the invention according to claim 1 is characterized in that an image information reading device receives heat applied to an object to be read by irradiation light when reading image information of the object to be read. Alternatively, predetermined information is displayed by using an ink that reversibly erases at least one of heat received when touched by a human body.

According to a second aspect of the present invention, in the printed matter according to the first aspect, the printed matter is a cash voucher that can be exchanged for money or can be used in place of money at a specific place. According to a third aspect of the present invention, in the printed matter according to the first aspect, the printed matter is a ticket for use in a predetermined transportation.

According to a fourth aspect of the present invention, there is provided an image information reading apparatus comprising: Displaying information, and when the printed matter is read by the image information reading device, the predetermined information is decolored by heat received by irradiation light of the image information reading device, and the predetermined information is made uncopyable. And

According to a fifth aspect of the present invention, predetermined information is displayed by using an ink which reversibly changes color, develops color or loses color by heat received when touched by a human body.

According to a sixth aspect of the present invention, predetermined information of a ticket is displayed by using an ink which is reversibly discolored, developed or erased by heat received when touched by a human body, and the predetermined information of the ticket is displayed. It is characterized in that the authenticity of the ticket is determined by touching the information with a human body and visually confirming whether or not the predetermined information has changed color, developed or erased.

According to the first to third aspects of the present invention, when a printed matter such as a ticket is read by the image information reading device, predetermined information is erased by irradiation light from the image information reading device. Further, when the predetermined information of the printed matter is touched by a human body, the predetermined information is erased. According to the fourth aspect of the present invention, the predetermined information is erased when read by the image information reading device, so that the predetermined information is not copied, and illegal copying is prevented.

In the invention of claim 5, when the predetermined information of the ticket is touched by a human body, the predetermined information is discolored, colored or erased. According to the sixth aspect of the present invention, the authenticity of the ticket is determined by touching predetermined information on the ticket with a human body to check whether the ticket is discolored or the like.

[0017]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view showing a ticket 10 which is a first embodiment of a ticket according to the present invention. The boarding ticket in FIG. 1 shows a boarding ticket before printing the boarding conditions such as the boarding section, the amount, and the boarding date and time. Ticket 1
Numeral 0 includes a base material 11, a tint block 12, a mark 13, and the like printed on the base material 11.

The base material 11 is formed from a paper material, synthetic paper, a resin sheet, or a laminate thereof. Base material 11
A magnetic layer (not shown) is provided on the back side of the
At the time of printing the boarding conditions, information related to this may be magnetically recorded. The copy-forgery-inhibited pattern 12 is formed of a pattern such as a grain of sand and a colorful pattern, and is provided for decoration or forgery prevention. The copy-forgery-inhibited pattern 12 is printed on the base material 11 by a conventionally well-known printing unit using a widely used ink.

The mark 13 is a print provided for preventing copying and determining whether the ticket 10 is authentic. Mark 13
Are printed with a thermal decolorable ink. Thermal decolorizable ink is a heat (approximately 36
C), or at least one of heat (approximately 40 ° C.) received by the reading object due to irradiation light when the image information reading device reads the image information of the reading object. After the heat radiation, the ink has reversibility that returns to the original color again. This ink contains, for example, an electron-donating color-forming organic compound, an electron-accepting compound, a color change temperature regulator, and a solvent.

Examples of the electron-donating color-forming organic compound include triphenylmethanephthalide-based compounds, fluoran-based compounds, phenothiazine-based compounds, leuco-oramine-based compounds, rhodamine-lactam-based compounds, spiropyran-based compounds, and indolinophthalide-based compounds. The compound may be a single compound or a mixture of two or more compounds. The electron-accepting compound is for discoloring, coloring or decoloring the electron-donating color-forming organic compound by heat, and here for decoloring by heat. As the electron accepting compound,
Conventionally known color developers include, for example, gallic acid esters such as dodecyl gallate, protocatechuic acid esters such as dodecyl protocatechuate, parahydroxybenzoic acid esters such as methyl parahydroxybenzoate, and urea.

Examples of the discoloration temperature controlling agent include higher alcohols, esters, acid amides and carboxylic acids. Examples of the solvent include an alkylnaphthalene-based compound, a diarylalkane-based compound, an alkylbiphenyl-based compound, a terphenyl-based compound, and a triallylmethane-based compound. The above materials are dispersed in a vehicle or encapsulated in a microcapsule by a coacervation method, an interfacial polymerization method, or the like to produce an ink dispersed in the vehicle, and printed by gravure, offset, flexo, screen printing, or the like.

The ticket 10 is issued after the boarding conditions such as sections are printed on the base material 11. For example, when the mark 13 is printed with the above-described ink that is erased at around 40 ° C.,
Image information reading device (copier, image scanner, etc.)
When the image of the ticket 10 is read, the surface of the ticket 10 is heated by the irradiation light from the image information reading device, and the mark 13 is erased. Therefore, mark 13
Cannot be read, and the image of the mark 13 is not copied on a copy of the ticket 10. As a result, the image of the ticket 10 cannot be copied as it is, and illegal copying can be prevented.

Further, when the mark 13 is printed with the above-mentioned ink which is decolored at around 36 ° C., the mark 13 is visible when the mark 13 is not touched by a human body. When touched, for example, when touched with a finger, the mark 13 is decolored by heat received from the human body. Therefore, by directly touching the ticket 10 and checking whether or not the mark 13 is erased, the authenticity of the ticket 10 can be determined without the need for a special device (such as a heating device). Becomes possible. This makes it possible to easily, quickly and reliably check the ticket 10 at the time of the ticket inspection.

FIG. 2 is a plan view showing a ticket 10A according to a second embodiment of the present invention. In this embodiment, only the copy-forgery-inhibited pattern 12A is printed on the base material 11.
The copy-forgery-inhibited pattern 12A is printed with the above-described thermal decolorable ink. Therefore, in the ticket 10A, the tint block 12A is erased by heat. In this way, tint block 1
Even when the color of 2A is erased, the same effect as described above can be obtained.

FIG. 3 is a perspective view showing a toy ticket 10B according to a third embodiment of the present invention. The toy ticket 10B is
A picture 14 indicating a car is printed with thermochromic ink. Here, the thermochromic ink is an ink having the same composition as the above-described thermochromic ink, but is adjusted so that the color changes before and after the change. It is for thermally discoloring an electron-donating color-forming organic compound.

The pattern 14 is pressed by holding the pattern 14 by hand or the like.
Is heated, the color of the picture 14 changes. Therefore, by confirming whether or not the color of the picture 14 changes, the authenticity of the toy ticket 10B can be determined. In addition, it is possible to give a dynamic design that attracts children's interest.

FIG. 4 is a perspective view showing a certificate 10C according to a fourth embodiment of the present invention. In the certificate 10C, the printing section 15 of the money amount column and the head mark is printed with thermochromic ink. This thermochromic ink is the same as in the third embodiment. When the certificate 10C is read by the image information reading device, the printing unit 15 receives the irradiation light from the image information reading device and changes its color. Therefore, the copy has a different color from the actual certificate 10C. As a result, the certificate 10C cannot be copied as it is, and forgery by the image information reading device can be prevented.

FIG. 5 is a perspective view showing a passbook 10D according to a fifth embodiment of the present invention. On the cover of the passbook 10D, a picture of a home or a car (not shown) is printed, and a black solid portion 16 is printed with a thermal decolorable ink so as to cover the picture. This thermal decolorable ink is the same as in the first embodiment. When the solid black portion 16 is warmed up, for example, by pressing the solid black portion 16 with a hand, the solid black portion 16 disappears, and a picture of a lower layer home or car appears. This is based on the phrase, "warm up the money."

The present invention can also be applied to a confidential document or the like displaying information that is inconvenient to be copied. If information such as a confidential document is printed with the thermal decolorable ink described in the first embodiment, when the confidential document or the like is read by the image information reading device, the information disappears and cannot be read. Copying itself can be prevented. This can prevent the spread of secret documents and the like.

The present invention is widely applied to a ticket, that is, a medium in which a monetary amount or a specific condition is officially displayed and whose copying is to be prevented. Other tickets include, for example, admission tickets, tickets, meal tickets, car tickets, betting tickets, coupons, commuter passes, coupons, passports, tickets (concert tickets, etc.), securities, securities, bills, foreign exchange, about hands, stock certificates, Bonds, gift certificates, book certificates, checks, gift certificates, stamps, postal documents,
Stamps, bills, and cash vouchers are included, and the passbooks described in the fifth embodiment are also included. Here, in gift certificates, etc.,
When predetermined information is printed using an ink that changes color, develops or loses color due to heat received from the human body, the authenticity of a gift certificate or the like can be determined without using a special device or the like in a transaction process.

[0031]

According to the first aspect of the present invention, it is possible to provide a dynamic image and enhance the catch-eye effect of the printed matter. In addition, since the image of the printed matter cannot be directly copied by the image information reading device, it is possible to prevent unauthorized copying or forgery of the printed matter. In addition, since the authenticity of the printed matter can be determined by directly touching it with a human body, the authenticity can be easily, quickly and reliably determined without using a special device or the like.

According to the second or third aspect of the present invention, illegal copying or counterfeiting of a voucher or a ticket is prevented,
The authenticity can be determined. According to the fourth aspect of the present invention, it is possible to prevent the printed matter from being directly copied, thereby preventing unauthorized copying or forgery of the printed matter.

According to the invention of claim 5, the authenticity of the ticket can be determined by directly touching the ticket with a human body.
According to the invention of claim 6, the authenticity of the ticket can be easily, quickly and reliably determined without using a special device or the like.

[Brief description of the drawings]

FIG. 1 is a plan view showing a ticket 10 which is a first embodiment of a ticket according to the present invention.

FIG. 2 shows a ticket 10 according to a second embodiment of the present invention.
It is a top view which shows A.

FIG. 3 is a toy ticket 10 according to a third embodiment of the present invention.
It is a perspective view which shows B.

FIG. 4 shows a certificate 10C according to a fourth embodiment of the present invention.
FIG.

FIG. 5 shows a passbook 10D according to a fifth embodiment of the present invention.
FIG.

[Explanation of symbols]

 10,10A ticket 10B toy ticket 10C certificate 10D passbook 11 base material 12,12A tint block 13 mark

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code Agency reference number FI Technical display location G03G 21/04 B41M 5/18 101C G03G 21/00 550

Claims (6)

[Claims] An image information reading apparatus reversibly erases at least one of heat received by an object to be read by irradiation light when the image information reading apparatus reads image information of the object to be read and heat received when touched by a human body. Using ink
Printed matter characterized by displaying predetermined information. 2. The printed matter according to claim 1, wherein the printed matter is a cash voucher that can be exchanged for money or used in place of money at a specific place. 3. The printed matter according to claim 1, wherein the printed matter is a ticket for use in a predetermined transportation. 4. An image information reading apparatus displays predetermined information on a printed material using ink that is reversibly erased by heat received by the object to be read by irradiation light when reading the image information of the object to be read, When the printed matter is read by the image information reading device, the predetermined information is decolored by heat received by the irradiation light of the image information reading device, and the predetermined information is made uncopyable. Prevention method. 5. A ticket characterized in that predetermined information is displayed using ink which reversibly changes color, develops or loses color by heat received when touched by a human body. 6. Displaying predetermined information of a ticket using an ink that is reversibly discolored, developed or erased by heat received when touched by a human body, and touches the predetermined information of the ticket with a human body. And determining whether the ticket is true or false by visually confirming whether the predetermined information has changed color, developed or erased color.