JP4480105B2 - Anti-counterfeit thermal paper and anti-counterfeit ticket paper - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a thermal paper having an improved anti-counterfeit effect and a ticket using the thermal paper. Specifically, by using thermal paper with thread elements embedded with a magnetic film in the base material such as lottery tickets, car betting tickets, voting tickets, tickets, receipts, certificates, pachinko ballots, etc. The present invention relates to a technology for preventing forgery of materials by difficulty in copying.
[0002]
[Prior art]
Tickets for lottery tickets, car betting tickets, voting tickets, etc. are using heat-sensitive colored paper, and when issuing tickets, the contents of the vote are printed on the surface, and at the same time, a bar linked to the contents of the vote Code, OCR number, etc. are printed. Recognizing the hit of the ticket is performed by reading the bar code, OCR number, etc., and checking it against the registered hit database.
The authenticity of voting tickets and the like is determined by systematically checking the contents (voting contents) printed and printed on the surface. At the time of verification, there is a case where the hit data is deleted or not. When the application is performed, the number of counterfeit tickets that can be generated is limited to one. When the application is not performed, an unlimited number of counterfeit tickets may be generated.
There are various ways to use such a voting method. For example, there is a plan for predicting the result of a combination of matches such as sports and race competitions, and obtaining a prize if the predicted result is correct.
[0003]
However, since this conventional system uses bar codes and OCR numbers for recognition and verification of hits, once the code system and algorithm are known, the thermal paper itself can be easily obtained in large quantities on the market. This makes it impossible to create counterfeit tickets.
[0004]
[Problems to be solved by the invention]
Therefore, in the present invention, in addition to system check functions such as database deletion and code encryption, the authenticity of the ticket itself can be determined. The thread element provided with the mark is embedded, and the thread element is visibly and mechanically recognized.
[0005]
[Means for Solving the Problems]
The first of the gist of the present invention for solving the above problems is that a belt-like thread element is embedded in a straight line parallel to one side of a paper base material in a paper base material. In the thermal paper with the thermal color former layer coated on the entire surface, a magnetic film is formed on the plastic resin substrate surface along with the printed pattern on the thread element, and the printed pattern is formed from the thermal color former layer side. The anti-counterfeit thermal paper is characterized by being visible . Since the anti-counterfeit thermal paper is used, it is difficult to duplicate the base material itself, and counterfeiting can be prevented.
[0006]
The second of the gist of the present invention for solving the above-mentioned problems is an anti-counterfeit ticket paper in which a predetermined matter is printed by coloring the heat-sensitive color former layer described in the first gist of the gist . Since it is such a forgery-preventing ticket, it is difficult to duplicate the base material itself, and forgery can be prevented.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
In order to determine the authenticity of the thermal paper itself, it is necessary to provide a means to make it difficult to obtain the discrimination material, mechanically recognize the material, and to make the recognition algorithm difficult to decipher. There is a method of applying the discrimination material by processing.
When applied by post-processing, processing by heat must be avoided due to the characteristics of the thermal paper, and there is a restriction of processing on the back surface. Here, the discriminating material is a material that facilitates identification, such as a hologram, a diffraction grating pattern, or a glittering material, such as pearl ink or optically variable ink. However, if the sheet area is small, the restrictions that can be applied further increase. .
Therefore, a thread element having a magnetic film as a discriminating material in the thermal paper substrate is embedded at the time of paper making. By doing so, it is not necessary to apply the discriminating material by post-processing, and discriminability can be imparted without being affected by the printing restrictions on the front surface of the thermal paper itself or the design restrictions on the back surface.
[0008]
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a thermal paper in which a thread element provided with a magnetic film is embedded. 1A is a plan view, and FIG. 1B shows a cross section taken along line AA in FIG. 1A.
As shown in FIG. 1, in the thermal paper 1 of the present invention, a thermal color former layer 3 is uniformly coated on a paper base 4. A band-shaped thread element 2 provided with a magnetic film is embedded in a part of the paper in a straight line. The thread element 2 of the present invention is characterized in that a printed pattern is applied to the resin base material together with the magnetic film. is there. The thread element is usually engraved so as to be parallel to one side of the paper, that is, in the case of roll paper, in the slit direction.
[0009]
FIG. 2 is a cross-sectional view showing one embodiment of the thread element. A printed pattern or characters 10 and a magnetic film 6 are formed on a transparent plastic resin substrate 5 such as PET. The printed pattern or character 10 may be printed on the resin base material before the magnetic film is formed, or the pattern or character 10 may be printed after the magnetic film is first applied. Further, the printed pattern or character 10 and the magnetic film 6 may be applied to the same surface of the plastic resin substrate 5 or may be applied to different surfaces.
[0010]
The reason why the thread element is printed is that when the thread element 2 is embedded in the paper base material, the printed pattern or the characters 10 can be seen through, and an effect like a watermark pattern is produced, making forgery more difficult. By printing on the magnetic film surface with the magnetic film 6 as the surface side of the paper substrate 4, the pattern visibility from the surface of the thermal paper becomes clear, and the printed pattern is displayed between the magnetic film and the resin substrate 5 or the magnetic property of the resin substrate. If it is applied to the surface opposite to the surface on which the film is provided, the visual recognition of the pattern from the back surface becomes clear.
The magnetic film 6 surface of the thread element may be on the coated surface side of the heat-sensitive color former layer 3 or on the opposite surface.
[0011]
FIG. 3 is a cross-sectional view showing a state in which the thread element is embedded in the thermal paper. Six embodiments (A) to (F) are shown. FIG. 3A is an embodiment in which a magnetic film 6 is applied to one surface of a plastic resin substrate, a printed pattern or character 10 is applied to the other surface, and the printed pattern side faces the thermal color former layer 3 side. . In this case, the printed pattern can be visually recognized (arrow) from the heat-sensitive color former layer 3 side. FIG. 3B is the reverse case of FIG. 3A, and the printed pattern or character 10 can be visually recognized from the back side of the thermal paper.
FIG. 3C shows an embodiment in which a printed pattern or characters 10 and a magnetic film 6 are applied in that order on the same surface of a plastic resin substrate, and the magnetic film side faces the thermal color former layer 3 side. In this case, if the plastic resin substrate is transparent, the printed pattern can be seen from the back side of the thermal paper. FIG. 3D shows the reverse case of FIG. 3C, and the printed pattern or characters can be visually recognized from the thermal color former layer 3 side.
FIG. 3E shows an embodiment in which a magnetic film 6 and a printed pattern or characters 10 are applied in that order on the same surface of a plastic resin substrate, and the printed pattern side faces the thermal color former layer 3 side. In this case, the printed pattern or characters can be visually recognized from the thermal color former layer 3 side.
FIG. 3 (F) is the reverse case of (E), and the printed pattern or characters can be seen from the back of the thermal paper.
[0012]
For the thread element resin substrate provided with a magnetic film, a PET resin substrate is usually used from the viewpoint of dimensional stability, etc., but if it meets the purpose, other plastic resin substrates may be used as described later. There may be. The thickness of the substrate is about 4 to 25 μm, but about 10 to 16 μm is more desirable in consideration of the processing ability of the magnetic film and the degree of swelling when embedded in the paper. That is, if the thickness is less than 4 μm, it is difficult to apply coating or the like in terms of machinability, and if the thickness exceeds 25 μm, unevenness occurs when embedded in thin paper. The width of the thread element is preferably in the range of 0.3 to 4 mm, and more preferably 0.5 to 1.5 mm from the viewpoint of easy detection of magnetic characteristics. The detection of the magnetic characteristics is not hindered from the front and back as long as the paper thickness is up to about 150 μm.
[0013]
Further, the thickness of the magnetic film needs to be 50 nm (500 mm) or more, and the upper limit is about 500 nm. For easy detection, 100 to 200 nm is desirable. The reason why the lower limit value of the layer is 50 nm is that the thickness of the magnetic layer is reduced, so that the saturation magnetic flux decreases with a decrease in the absolute amount of the magnetic material, and the magnetic signal becomes smaller. This is because the thickness of the magnetic material is required to be 50 nm or more in order to obtain a magnetic signal. The reason why the upper limit is 500 nm is that when the thickness is larger than this, the characteristics of the thread element are deteriorated due to curling due to internal stress of the film, and wrinkles and cracks may occur. Such a thin magnetic film is preferably formed by a vapor deposition method or a sputtering method in order to increase accuracy.
[0014]
The printed pattern or characters provided on the thread element can be printed by ordinary gravure printing or silk screen printing. If continuous printing is possible on a continuous substrate, offset printing may be used. When a magnetic film is formed on a printed pattern, a smooth surface is desired, so gravure or offset printing is recommended over silk screen printing. The thickness of the pattern or character printing ink layer is about 0.5 to 5 μm. The binder resin or pigment of the ink used for printing is not particularly limited as long as the adhesion to the substrate is sufficient. When forming a magnetic film on the printing surface, the magnetic film 6 is formed by vapor deposition or sputtering after printing.
[0015]
The thread element is embedded in the paper during paper making, and a round netting multi-cylinder paper making machine is generally used. In the case of the round net multi-cylinder type, the lower layer paper is made before threading, the thread is placed on the paper, and the paper material is further put on to make a single base paper.
When threading the thread element, it supports the supply side of the wound thread and puts it on the paper stock of the paper net, so it is usually straightened parallel to the paper flow direction. Will be. In the case of the ticket paper, it is finished as a high-quality paper or OCR paper, and the thickness of the paper layer is suitably about 65 to 150 μm.
When threading the thread element, a so-called window type can be used in which the thread is periodically exposed from the paper surface by using a special mesh. In this case, it is preferable to apply the heat-sensitive agent to the surface side where the window does not appear or to avoid the window portion even on the window surface side.
[0016]
A desired heat-sensitive paper with a thread can be completed by applying a heat-sensitive color former to the surface of one side of the paper in which the thread element is embedded. The heat-sensitive agent to be used is not particularly limited, but it is preferable to use a leuco-type heat-sensitive color developing agent or the like that satisfies these requirements because light resistance and water resistance are required on the sheet surface. The heat-sensitive agent may be a coating method in which different color tones are applied partially, or the portions may be applied twice with different color tones.
[0017]
Next, a description will be given of a ticket using thermal paper in which a thread element is embedded.
FIG. 4 shows a state in which the thermal paper is rolled. The thread element 2 is formed on the heat-sensitive roll paper 7 so as to be parallel to the end of the roll paper. When thermal paper is used for ticketing, it is generally set in a ticket issuing printer in such a roll shape having a unit width. When voting content (expected data, etc.) is input, the data is printed on the thermal surface by the printer, cut into a size of one sheet, and discharged. The voter holds this voting ticket until the results are known.
[0018]
FIG. 5 is a plan view showing a unit ticket. In general, voting content confirmation data 8 and system confirmation data 9 are output on the surface of the ticket 15. The system confirmation data 9 is usually detected optically, and a barcode or OCR is used for the detection.
When the winning or losing is confirmed by the end of the game or the lottery, the authenticity of the data is checked by reading the system confirmation data 9. At that time, the authenticity of the ticket itself can be checked by detecting the magnetic characteristics and magnetic data of the embedded thread element with a magnetic head having a detection capability in accordance with the magnetic characteristics. Even if the contents of the printed voting content confirmation data 8 and the system confirmation data 9 are leaked and decoded, and printed on commercially available thermal paper, the substrate itself is different, so that it can be reliably detected. . When a printed pattern or characters are recorded on the thread element, the authenticity of the authenticity check is further increased.
[0019]
Next, the thread element material used for the thermal paper will be further described.
As the plastic resin base material 5, a solvent-resistant and heat-resistant resin film can be used. Generally, a polyethylene terephthalate (PET) resin film as well as a polyamide resin film, a polyimide resin film, a cellulose resin film, and polypropylene are used. Resin film etc. are mentioned.
[0020]
Next, the ferromagnetic material may be crystalline or amorphous, and a magnetic material composed of one or a combination of two or more of iron (Fe), cobalt (Co), and nickel (Ni), Alternatively, any one or two of them as a main component, and boron (B), carbon (C), magnesium (Mg), aluminum (Al), silicon (Si), phosphorus (P), sulfur (S), titanium (Ti), vanadium (V), chromium (Cr), manganese (Mn), copper (Cu), zinc (Zn), yttrium (Y), zirconium (Zr), niobium (Nb), molybdenum (Mo), palladium (Pd), silver (Ag), indium (In), tin (Sn), tantalum (Ta), tungsten (W), iridium (Ir), platinum (Pt), gold (Au), lead (Pb) And a additive al chosen several metallic or non-metallic element.
[0021]
The formation of a magnetic film made of a ferromagnetic material is performed by sputtering, vapor deposition, ion plating, etc. using a material composed of an alloy composed of iron, cobalt, nickel as a main component and an additive element or a mixture thereof as a target material or a vapor deposition source. It forms on a thread | sled base material by the means using a vacuum process.
[0022]
Such a ferromagnetic material exhibits unique characteristics in Hc (coercive force) and Bm (saturation magnetic flux density). From the magnetic characteristics, the normally applied magnetic field strength and the magnetic flux density of the magnetic material magnetized by the magnetic field are Since it has a non-linear BH characteristic (hysteresis curve), it can be clearly distinguished from a general magnetic material.
FIG. 6 is a diagram showing a hysteresis curve of a magnetic material. In a ferromagnetic material, as shown in FIG. 6A, the ferromagnetic material layer has a small coercive force Hc and a high squareness ratio (0.8 to 1.. 0) BH hysteresis curve is obtained. On the other hand, with a general magnetic material, as shown in FIG. 6B, the saturation magnetic flux density Bm decreases, the coercive force Hc increases, and a hysteresis characteristic with a low squareness ratio (0.5 or less) is obtained.
[0023]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to FIGS.
(Example)
<Production of thread element>
As a resin base material 5 of the thread element, printing was carried out on a transparent polyethylene terephthalate film [thickness: 16 μm] with good smoothness by a gravure printing method, and a tint block pattern consisting of characters “ABCD” was continuously printed.
Subsequently, a ferromagnetic film 6 made of iron (Fe) -silicon (Si) system was formed on the tint block pattern by sputtering to a thickness of 0.2 μm.
The thread material was slit to a width of 1 mm using a slitter machine, and a magnetic thread element 2 with a tint block pattern was completed (FIG. 2).
[0024]
<Preparation of thermal paper>
After this thread element is formed on a base paper (high quality paper) having a thickness of 100 μm, a leuco thermal coloring agent (black coloring) is applied to the surface under the same conditions of 40 to 50 g / m ² under the same conditions as for ordinary thermal paper. The anti-counterfeit thermal paper was completed. This thermal paper was slit into a width of 85 mm to obtain a roll paper for a ticket (FIGS. 3 and 4).
[0025]
<Ticketing>
The voting content confirmation data 8 and the system confirmation data 9 were printed on the thermal paper layer 3 portion of the thermal paper by using a ticketing printer having a thermal head, and a ticket was issued. The system confirmation data 9 is displayed as a barcode (FIG. 5).
[0026]
Such a ticket could be clearly distinguished from a sheet of general thermal paper by measuring magnetic properties. Further, since the tint block pattern was displayed on the thread element, the tint block pattern was clearly visible from the surface of the thermal paper without the heat-sensitive agent layer.
Although the application of the present invention is expressed as thermal paper and ticket, it is applied to various uses such as car horse tickets, soccer tickets, other admission tickets, seat designation tickets, instant lottery tickets, ski resort lift tickets, viewing tickets, etc. It is possible and does not simply exclude differences in terminology or different purposes.
[0027]
【The invention's effect】
As described above in detail, in the anti-counterfeit thermal paper or ticket of the present invention, in the thermal paper in which the thermal color former layer is coated on the entire surface of either side of the substrate, from the thermal color former layer side. The printed pattern can be visually recognized, and a thread element made of a magnetic film with a printed pattern is incorporated, making it difficult to manufacture the base material itself, so it can be easily distinguished from ordinary thermal paper or ticket paper using it. It is possible to effectively prevent counterfeiting of the ticket.
[Brief description of the drawings]
FIG. 1 shows a thermal paper in which a thread element provided with a magnetic film is embedded.
FIG. 2 is a cross-sectional view showing an embodiment of a thread element.
FIG. 3 is a cross-sectional view showing a state in which a thread element is embedded in thermal paper.
FIG. 4 shows a state in which the thermal paper is rolled.
FIG. 5 is a plan view showing a unit ticket.
FIG. 6 is a diagram showing a hysteresis curve of a magnetic material.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Thermal paper 2 Thread element 3 Thermal agent layer 4 Paper base material 5 Resin base material 6 Magnetic film 7 Thermal roll paper 8 Vote content confirmation data 9 System confirmation data 10 Print pattern or character 15 Ticket

Claims (5)

In the paper base material, a strip-shaped thread element is embedded in a straight line parallel to one side of the paper base material, and a heat-sensitive color former layer is coated on the entire surface of the paper base material. The anti-counterfeit thermal paper, wherein the thread element has a printed film and a magnetic film formed on the surface of the plastic resin substrate, and the printed pattern can be visually recognized from the thermal color former layer side .   2. The anti-counterfeit thermal paper according to claim 1, wherein the magnetic film is made of a ferromagnetic material film.   The anti-counterfeit thermal paper according to claim 1 or 2, wherein the printed pattern and the magnetic film are formed on the same surface of the plastic resin base material.   The anti-counterfeit thermal paper according to claim 1 or 2, wherein the printed pattern and the magnetic film are provided on different surfaces of the plastic resin base material. Anti-counterfeit ticket paper, wherein the kite to claim 1 thermosensitive coloring agent layer of the anti-fake thermal paper according by color prints predetermined items.

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