JP2001106954A - Non-aqueous ink for staining genuine bill - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ink that can stain genuine bills, lotteries, valuable paper and the like in the form of bundles or wads stored in a storing vessel, when they are robbed or stolen via illegal processes by immediately staining the bills or the like with this ink at the edge faces of the wads, then rapidly allowing the ink to penetrate into the inside of the pads so that the explicit evidence that the bills or like have been stained by this ink may be remained visually or mechanically, for example, in the money changer, thus the robbed bills, lotteries or valuable documents are made unusable. SOLUTION: The objective non-aqueous ink for staining genuine bill or the like comprises magnetic particles with the average particle size of 5-25 nm, a vegetable oil and a non-aqueous liquid medium.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of contaminating a genuine bill contained in a device installed in a financial institution, a post office, a station, a lottery vending machine, etc., by unauthorized means. Related to the ink to do.

[0002]

2. Description of the Related Art Banknotes, securities, postage stamps, revenue stamps,
A ticket, a voucher with a winning money (hereinafter referred to as a genuine ticket) and the like may be illegally taken from a financial institution, a post office, a station, a lottery sales office, or the like which handles them, by robbery or the like. Assuming such fraudulent acts, the above financial institutions, etc., prepare in advance an injector or a resin container that can be easily destroyed and filled with a fluorescent dye of a conspicuous color such as yellow or orange, and actually obtain the fraudulently. Upon the occurrence of the act, triggering the injector toward the perpetrator or genuine bill, or throwing the container and destroying the container, attaching the fluorescent dye to the perpetrator or genuine bill, the culprit can be easily tracked. Attempts have been made to do so. However, there are many cases in which the criminal has missed the chase and escaped. If the escape succeeded, it is important that the genuinely stolen genuine bill can be easily identified from other genuine bills.

Conventionally, fluorescent dyes used for genuine bill contamination include:
Since it is similar to the color of business-use markers called so-called highlighters, even if the color is attached to a genuine note, it is immediately recognized that the genuine note is a genuine note taken by unauthorized means. Was not easy. Also, fluorescent dyes used for genuine bill contamination are inferior in weather resistance and chemical resistance. Therefore, when the contaminated genuine bill is exposed to sunlight or the like, or immersed in an alkaline solution or an acidic solution, it loses its color. As a result, there is a disadvantage that the genuine bill can no longer be recognized as a genuine bill taken by unauthorized means.

[0004] Also, in today's widespread use of automatic teller machines, cash change machines, vending machines, etc., the above-mentioned cash change machines and the like are abused and genuine bills contaminated at the time of seizure by unauthorized means. It is sufficiently possible to exchange a genuine bill or the like that has not been contaminated, or to purchase goods with a vending machine using a genuine bill that has been contaminated at the time of taking by illegal means. Therefore, it is not enough for a person to visually recognize that a genuine paper has been taken by an unauthorized means, and it is strongly necessary to be able to mechanically identify a genuine paper taken by an unauthorized means. Is desired.

[0005] By the way, the authenticity of bills, securities, tickets, vouchers with winnings, etc., is detected by detecting differences from counterfeit goods (hereinafter referred to as counterfeit tickets) made to resemble these authentic bills. For identification, magnetic printing with magnetic ink is performed at the time of genuine bill production. If a genuine note is illegally taken,
By contaminating the genuine bill with the magnetic genuine bill contaminating ink, the magnetic printing layer for authenticity detection is also contaminated, and as a result, the genuine bill is illegally captured by a machine such as an automatic teller machine. It can be identified that the genuine bill has been issued.

In addition, since magnetic particles generally have much better weather resistance and chemical resistance than fluorescent dyes, when ink containing magnetic particles is used, improperly picked-up genuine bills are used. Evidence of that can be kept for a long time.

However, the magnetic material contained in a general magnetic ink is a magnetic material having a particle diameter larger than about 500 nm or a magnetic substance having a longer diameter larger than about 500 nm, and has a high specific gravity. When a general magnetic ink containing a body is subjected to printing, it is necessary to use it under stirring. Without stirring, it is difficult to maintain a stable dispersion state, and the magnetic material will settle out about 60 minutes after stopping stirring. The genuine paper contamination ink stored in the automatic teller machine etc. is not frequently used for genuine paper contamination, and it is prepared in case of unjust illicit seizure in case of illegal seizure In order to evenly contaminate the genuinely stolen bills with magnetism,
It is necessary to maintain a stable dispersion over several years. Here, as means for keeping the dispersion state of the magnetic ink stable, it is conceivable that stirring is always performed, the viscosity of the magnetic ink is increased, and the magnetic substance is hardly settled. However, it is extremely difficult for an automatic teller machine or the like to have a mechanism for stirring the ink for genuine bill contamination in the device because of the space in the device, which is not practical.

[0008] In addition, upon occurrence of an unauthorized seizure, the genuine paper contamination ink is urgently and promptly spouted from its storage member,
It is necessary to adhere to the genuine bill and contaminate the genuine bill. However, if the viscosity of the genuine bill contaminating ink is increased, it is difficult to quickly and quickly eject the ink from the storage member. Furthermore, even if it adheres to the surface or the end surface of a genuine bill, it is difficult to quickly penetrate into the inside. Alternatively, it is also possible to contaminate the genuine bill by putting the genuine bill into the genuine bill contaminating ink upon the occurrence of an illegal taking action,
In this case, the genuine bill contamination ink may have a higher viscosity than when the genuine bill contamination ink is ejected, but even if it adheres to the surface or the end face of the genuine bill, it quickly penetrates into the inside. There is a problem that it is difficult. In other words, if the magnetic ink does not penetrate inside the genuine bill, but merely adheres to the surface or the end face, the criminal or the like can easily remove the dirt after the fraudulent act, and after that, the fraudulent act It becomes impossible to recognize that the genuine bill is obtained, and the use of the genuine bill cannot be prevented.

Therefore, the ink has a low viscosity and can be used for a plurality of years without special stirring so that the ink can be quickly and promptly ejected from the ink storage member and can quickly penetrate into the inside of the genuine bill. If the genuine bill is made of a permeable material, such as paper, in order to maintain a stable dispersion state for a long time, it is important that the contamination not only stay in the surface layer but reach the inside. In order to ensure the permeability, it has been found that it is extremely important that the average particle size of the magnetic material is 5 to 25 nm, and the application has been made.

[0010] By the way, genuine bills are a kind of "bundle" which is stacked or arranged in a device such as a money changer, with its long side and short side aligned, due to the accommodation space and the like.
Housed in state. Therefore, a genuine bill contamination ink containing a magnetic material having an average particle size of 5 to 25 nm is dropped on one or both surfaces of the genuine bill bundle, that is, on the outer surface of the genuine bill bundle. If the outer surface of the bundle of genuine bills is sprayed, sprayed, or dropped onto a container containing genuine bill contamination ink, the genuine bills located outside the bundle can be easily contaminated. It is extremely difficult to efficiently and surely contaminate the genuine bill located inside. Therefore, in order to efficiently and surely contaminate each of the genuine bills stacked or arranged in a “bundle” shape, the contaminating ink is attached to the end face of the “bundle”, It is necessary to allow contaminants to penetrate inside the bill from the end face.

Further, since the above-mentioned money changers and the like are often installed in unmanned situations, it is necessary to pay close attention to their safety. Therefore, it is desirable not to contain a substance which is easily ignited by static electricity, lightning, or the like in the apparatus. Therefore, it is desired that the genuine paper contamination ink be water-based.

However, a new problem has arisen that it is extremely difficult to quickly infiltrate contaminants from inside the bundle of genuine bills into the inside of the genuine bill using an aqueous genuine bill contamination ink. In other words, although the detailed mechanism has not been elucidated yet, it is thought that if the water-based genuine paper contamination ink is attached to the end surface of the genuine paper "bundle", the genuine paper itself swells, The side on which the ink is applied is extremely swollen, and contaminants hardly penetrate into the genuine bill. Generally, genuine bills such as banknotes are often provided with magnetic printing for authenticity discrimination on the inner side of about 10 to 20 mm from the edge. Therefore, it is required that the contaminating ink penetrates about 20 mm from the end face of the “bundle” of genuine bills toward the inside, but if water genuine bill contaminating ink is used, magnetic printing for authenticity identification can be sufficiently performed. The ink does not penetrate inside the genuine bill to the extent that it is contaminated.

[0013]

SUMMARY OF THE INVENTION The present invention relates to a special bill accommodating apparatus which accommodates genuine bills in a kind of "bundle" in which the long sides and short sides are aligned and stacked or arranged. Without disturbing the stable distribution of the genuine bill for several years, it is difficult to catch fire due to static electricity or lightning, etc. Is an ink that can contaminate the end face of a "bundle" of genuine bills, and then quickly penetrates into the inside of the genuine bills. It is an object of the present invention to provide an ink for genuine paper contamination that can leave clear evidence on a genuine paper for a long period of time, both visually and in a machine such as the above-mentioned money changer, that the genuine paper has been seized by fraudulent means. Purpose, and robbed by fraudulent means An object of the present invention is to preclude the use of authentic bill that has been.

[0014]

That is, the present invention is a non-aqueous genuine paper contamination ink comprising magnetic particles having an average particle size of 5 to 25 nm, vegetable oil, and a non-aqueous liquid medium. .

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The genuine paper contamination ink of the present invention will be described. Magnetic materials contained in general magnetic inks, due to their size and specific gravity, need to be used with stirring when providing magnetic inks containing such magnetic materials for printing, and when not stirring, It is difficult to maintain a stable dispersion state, and it is up to the above that the magnetic substance sediments in about 60 minutes after stopping stirring, but the average particle diameter of the magnetic substance is 5 to 25 nm. In this case, the dispersion state of the dispersion containing the magnetic substance is extremely stable, and aggregation or sedimentation does not occur even when centrifugal force is applied, as if the dispersion was a magnetic `` solution ''. It has a unique property. In addition, when a magnetic field is applied, it is affected only during the application of the magnetic field and is attracted, but after removing the magnetic field, it is determined whether the `` solution '' has the original magnetism. Return to such a state. Therefore, a stable dispersion state can be maintained for many years without special stirring. Further, when the average particle size is in the above range, when the genuine bill is made of a permeable material such as paper, the contamination can quickly reach the inside without simply remaining in the surface layer. It is extremely important that the average particle size of the magnetic material of the genuine paper contamination ink of the present invention is 5 to 25 nm.
It is preferably 20 nm, more preferably 7 to 15 nm. Here, examples of the magnetic substance contained include iron, nickel, cobalt, and ferrite. Ferrite is preferable in terms of apparent magnetic strength generated on a genuine bill, and among them, magnetite, manganese zinc ferrite, and the like are preferable. Are preferred. The shape is preferably spherical or nearly spherical.

The genuine paper staining ink of the present invention comprises a non-aqueous liquid medium containing magnetic particles having an average particle size of 5 to 25 nm in an amount of 0.05 to 5 nm.
It is preferably 90% by weight dispersed.
More preferably, it is dispersed in an amount of about 50% by weight. If the content of magnetic particles in the ink is less than 0.05% by weight, even if the genuine bill can be properly contaminated during fraudulent acts, it can be seen visually due to its light color, or an automatic teller machine due to its weak magnetism. It is difficult to disturb the function for detecting the authenticity of the device and to recognize that the genuine bill has been taken by unauthorized means. Further, if the content of the magnetic particles in the ink is more than 90% by weight, not only the effect corresponding to the content cannot be expected but also it is economically disadvantageous, which is not preferable.

The genuine paper contamination ink of the present invention is preferably one obtained by dispersing magnetic particles having an average particle size of 5 to 25 nm in a non-aqueous liquid medium using a surfactant.
As the surfactant, anionic, cationic or nonionic surfactants having 9 or more carbon atoms in the hydrocarbon chain can be used. Specifically, oleic acid, linoleic acid, linoleic acid, Alkyl benzene sulfonate, alkyl sulfonate, dodecyl sulfate and the like can be mentioned. Incidentally, the average particle size is 5 to 25 nm using a surfactant.
Is obtained by dispersing about 10 to 50% by weight of the magnetic particles in a non-aqueous liquid medium as a so-called magnetic fluid.

The genuine paper contamination ink of the present invention may be obtained by simply adding a vegetable oil, which will be described later, to an ink available as a magnetic fluid. However, a non-aqueous liquid medium may be further added for the purpose of adjusting the magnetic substance content and viscosity. It may be added. Any non-aqueous liquid medium may be used as long as it is difficult to ignite.
C. or higher, more preferably 45.degree. C. or higher. The non-aqueous liquid medium is preferably one that is difficult to dry, for example, one having a boiling point of 150 ° C. or higher. If the genuine stain ink is extremely dry,
After the genuine paper contamination ink adheres to the genuine paper, it dries before reaching the magnetic printing layer for authenticity identification of the genuine paper, thereby achieving the original purpose of the genuine paper contamination of disturbing the magnetism of the magnetic printing layer. hard. Further, the non-aqueous liquid medium is preferably a hydrocarbon-based liquid medium, and is preferably a liquid mainly containing an aliphatic hydrocarbon as a main component. Includes saturated ones. Such non-aqueous liquid media include n-nonane (flash point: 30 ° C., boiling point: 150.8 ° C.), n-decane (flash point: 46.1 ° C., boiling point:
174.1 ° C), n-dodecane (flash point: 73.9 ° C, boiling point: 21)
6.3 ° C), decalin (flash point: 57.8 ° C, boiling point: 195.7)
° C), bicyclohexyl (flash point: 73.9 ° C, boiling point: 217
Up to 219 ° C (trans-trans), boiling point: 233 to 238 ° C (cis-ci
s)), and kerosene (flash point: 65 to 85 ° C, boiling point: 175 to 325 ° C).

Another major feature of the genuine stain ink of the present invention is that it contains a vegetable oil. In other words, after the non-aqueous genuine paper contamination ink adheres to the end face of the genuine bill `` bundle '' by incorporating vegetable oil, it has a remarkable effect of rapidly penetrating into the inside from the end face of the genuine bill, The ink itself becomes more difficult to dry. In addition, not only does it penetrate inside the genuine bill, but also between the genuine bill, that is, along the surface of the genuine bill, from the edge of the genuine bill to the back, the contamination ink easily penetrates, The magnetic printing layer can be reliably contaminated and disturbed.

Further, vegetable oil also functions as a viscosity modifier for genuine paper contamination ink. Although it depends on the content of the magnetic particles, the ink for genuine paper contamination must have an extremely low viscosity only by containing the magnetic particles having an average particle diameter of 5 to 25 nm and a non-aqueous liquid medium. Therefore, except for the case where the end face to be contaminated of the genuine bill “bundle” faces upward in the vertical direction and the contaminating ink is dripped or ejected from above toward the end face, for example, the contamination of the genuine bill “bundle” If the end face to be applied is nearly vertical, or if the end face to be contaminated of a genuine "bundle" is facing down in the vertical direction, the genuine contaminating ink may be genuine against gravity. It is necessary to penetrate from the end face to the inside or to the back of the surface. If the genuine paper contamination ink has an extremely low viscosity, it will be better to drop than to penetrate even if it adheres to the end face. In other words, the genuine bill contamination ink is economically high in viscosity to the extent that it can withstand gravity while containing the minimum amount of magnetic particles required to disturb the magnetism of the magnetic printing layer for authenticity identification, and It is desirable that the viscosity of the bundle of genuine bills is low enough to promptly penetrate the bundle from the end face, and the addition of vegetable oil has a special effect on this conflicting demand.

The vegetable oil used in the present invention includes camellia oil, sasanqua oil, olive oil, castor oil, rapeseed oil, sesame oil, cottonseed oil, safflower oil, corn oil and the like. Are preferred, camellia oil, sasanqua oil and olive oil are more preferred, and camellia oil and sasanqua oil are most preferred. These vegetable oils are preferably contained in the genuine paper contamination ink of the present invention in an amount of from 20 to 70% by weight, more preferably from 30 to 60% by weight, even more preferably from 35 to 55% by weight.

The genuine paper contamination ink of the present invention may further contain pigments, dyes, resins, etc., as long as the dispersion state of the magnetic particles having an average particle size of 5 to 25 nm is not impaired. The magnetic substance generally presents a dark black color or a dark brown color, but relatively light magnetic particles are used, or a relatively small amount of dark black or brown magnetic particles is contained, for example, about 20% by weight in the ink. When a pigment and a dye are used in combination, it is possible to obtain an ink other than dark black or brownish while retaining magnetism. As pigments that can be contained in genuine paper contamination ink, 0.1 to 0.1 from the viewpoint of dispersion stability.
Dyes having a particle size of about 5 μm are preferable, and dyes that can be contained in genuine paper contamination inks are those that are resistant to acids and alkalis and do not easily fade.

The genuine paper contamination ink of the present invention further comprises 8
Substances having at least one or more absorption spectra in the range of 00 to 1500 nm, and substances emitting fluorescence when irradiated with light having a wavelength of 250 to 380 nm are used as the respective substances.
It can be added in an amount of from 0.01 to 10% by weight. In other words, in addition to magnetic ink, genuine bills may be printed with infrared absorbing ink, fluorescent coloring ink, etc. for authenticity detection. Automatic teller machines are not only magnetic, but also various optical sensors In some cases. Therefore, an infrared absorbing substance or a fluorescent coloring substance can be further included in order to enable these sensors to identify the genuine bill taken by unauthorized means by these sensors.

In the genuine paper contamination ink of the present invention, magnetic particles having a specific particle size, vegetable oil, and other components may be added, mixed, and dispersed in an appropriate non-aqueous liquid medium, if necessary. After adding, mixing, dispersing, etc., to an appropriate non-aqueous liquid medium for each component, they may be combined. A plurality of components may be added to a suitable non-aqueous liquid medium, mixed, dispersed, etc., and then combined with a dispersion of another component. In addition, various components can be sequentially added, mixed, and dispersed in an appropriate non-aqueous liquid medium.

The genuine bill contamination ink of the present invention is housed in a genuine bill storage device together with a member for bundling and storing genuine bills and a member having a function of detecting an act of seizing genuine bills by unauthorized means. When the detecting member detects the fraudulent action, the genuine paper contamination ink is discharged from the ink storage member toward the end face of the genuine paper bundle, or the genuine paper contamination ink in the ink storage member is discharged. The end of the bundle of genuine bills is thrown into the genuine bills and contaminates the genuine bills.

The member for storing the genuine bills in a bundle may be a member for accommodating genuine bills in a state where the long sides and short sides of the genuine bills are aligned and stacked, and must be wrapped with a string, tape, band, or the like. There is no. In addition, the end face of the bundle of genuine bills may be accommodated so as to be vertically up or down, or may be accommodated such that the end face of the bundle of genuine bills becomes substantially vertical.

The “act of taking a genuine bill by unauthorized means” as used herein refers to the act of forcibly moving the genuine bill accommodating apparatus itself from a predetermined installation location by a person without a rightful right, This refers to the act of prying open, removing the genuine note storage member from the genuine note storage device, opening the genuine note storage member, extracting the genuine note from the genuine note storage member, and other similar acts.

The term "member having a function of detecting fraudulent acts" as used herein refers to various sensors such as a mechanical switch, a vibration sensor, a capacitance change detection sensor, and a tilt detection sensor.

As a member having a function of ejecting genuine paper contamination ink from the ink storage member upon detection of an unauthorized seizure and contaminating the end face of the bundle of genuine paper, the storage member is simply destroyed, and It may have a function only to be able to adhere to the end face of a bundle of genuine bills. In addition, a ceiling member of the genuine bill storage member and a bottom member of the ink storage member are provided above the genuine bill storage member such that one surface of the end surface of the bundle of genuine bills is accommodated upward in the vertical direction. A mechanism may be provided in which an ink storage member is installed and a wall forming a boundary between the two members is destroyed or pulled out when an unauthorized seizure is detected. Alternatively, a member having a function of ejecting ink in the storage member toward the end face of the genuine bill in the genuine bill storage member or a bundle of genuine bills being extracted from the genuine bill storage member may be used.

As a member having a function of putting the end surface of a bundle of genuine bills into the contaminating ink in the ink storage member when detecting an unauthorized seizure, and contaminating the end surface of the bundle of genuine bills, for example, Ink is stored below the genuine bill accommodating member so that the bottom member of the genuine bill accommodating member and the ceiling member of the ink accommodating member are formed such that one surface of the end face of the bundle of genuine bills is accommodated downward in the vertical direction. A mechanism may be provided in which a member is installed and a wall forming a boundary between both members is destroyed or pulled out when an unauthorized seizure is detected.

The mechanism and means for ejecting the genuine bill contaminating ink from the ink storage member may be any as long as it can accurately contaminate the end face of the bundle of genuine bills, and various mechanisms and means can be selected. Further, the genuine bills may be contaminated by dropping or ejecting the contaminating ink on the end face of the genuine bills in the stacked state, or the genuine bills stored in the stacked or arranged state may be contaminated. The genuine bill may be contaminated by pouring the end face of the bundle into a member containing the contaminating ink.

[0032]

EXAMPLES Example 1 An oily magnetic fluid (trade name: Marpomagna FN-40, average particle size: 10 n) using paraffin and a surfactant
m containing 40% by weight of a ferromagnetic material, manufactured by Matsumoto Yushi-Seiyaku
Weight%, camellia oil 45% by weight, and a blue pigment in which a pigment and a resin are pre-mixed (trade name: Micro Rethread 4G
T, Ciba-Geigy) 5% by weight, mineral spirits A
(Product name, flash point: 30 ° C. or more, boiling point 150 ° C. or more) 40% by weight was mixed to obtain an ink for genuine paper contamination. When the obtained genuine bill contamination ink was bundled with 100 sheets of 1000-yen banknotes and attached to the end surface of the bundle, the ink permeated into the inside of the banknote from the end surface of the bundle of banknotes. Quickly penetrated towards. The outermost banknotes of the bundle, 11, 21, 31, from the outermost banknotes toward the inside of the bundle,
The 41st and 51st banknotes were inserted into a money changer at a commercial bank, but the machine determined that they were not genuine banknotes and could not exchange money.

Example 2 The same as Example 1 except that the mineral spirits A used in Example 1 was 36.5% by weight and 3.5% by weight of silicone SH28PA (trade name, manufactured by Toray Silicone Co., Ltd.) was used. In the same manner, a genuine note contaminating ink was obtained, and the same test was performed. As a result, the genuine note located inside the bundle was also surely contaminated. Further, when the absorption spectrum of the contaminated portion of the contaminated banknote is analyzed by an infrared spectrometer, it is approximately 800 nm.
From 1200 to 1200 nm.

[0034]

According to the present invention, when genuine bills such as banknotes, securities, postage stamps, income stamps, tickets, vouchers with a prize money, etc. are robbed, stolen, etc. by illegal means,
Even if the genuine bills are bundled, they swiftly and reliably contaminate the genuine bills, visually and by machines such as automatic teller machines, vending machines, automatic ticket gates, and automatic number reading devices. Magnetic sensors have allowed long-lasting evidence on genuine notes that they are genuinely seized by fraudulent means. Then, the evidence can make it impossible to use a genuine bill taken by an unauthorized means, and as a result, it has an effect of preventing and suppressing criminal acts themselves.

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Claims (1)

[Claims] 1. A non-aqueous genuine paper contamination ink comprising magnetic particles having an average particle size of 5 to 25 nm, vegetable oil, and a non-aqueous liquid medium.