JP4033272B2 - Anti-counterfeit printed matter - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an anti-counterfeit printed matter that can prevent forgery due to tampering and copying.
[0002]
[Prior art]
Conventionally, printed information such as a bus commuter pass 10 shown in FIGS. 5 and 6 has various information 12 such as date printed on the surface of a paper base 11 made of paper or other synthetic paper.
[0003]
[Problems to be solved by the invention]
By the way, since the bus commuter pass 10 as described above is easily copied by a copying machine, information is inadvertently leaked or easily forged by color copying, and various information 12, especially date, etc. There is a problem that it is easily altered.
[0004]
The present invention has been made in view of the above-described problems, and an object of the present invention is to provide an anti-counterfeit printed matter that can prevent forgery by copying and falsification of printed information. Is to provide.
[0005]
The above and other objects and novel features of the present invention will be apparent from the description of this specification and the accompanying drawings.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the anti-counterfeit printed matter according to the present invention is characterized in that a metal foil is printed on a heat-sensitive layer of a heat-sensitive recording paper by thermal transfer.
[0007]
In addition, the metal foil was printed on the heat-sensitive layer of the heat-sensitive recording paper by thermal transfer, and the heat-sensitive layer immediately below the metal foil print was colored by the heat at the time of heat transfer, and the heat-sensitive recording paper was printed. It is a feature.
[0008]
Furthermore, a gold foil or a silver foil is used as the metal foil.
[0009]
Further, the present invention is characterized in that a protective film for enhancing scratch resistance is applied to a predetermined area of the thermal recording paper.
[0010]
Accordingly, the anti-counterfeit printed matter of the present invention printed metal foil such as gold foil and silver foil on the heat-sensitive recording paper. When this printed matter is copied, the printed metal foil is mirror-reflected and transferred to black.
[0011]
In addition, since the heat is applied to the thermal recording paper immediately below the printing of the metal foil due to the heat at the time of the thermal transfer of the metal foil, the thermal recording paper is printed directly under the printing of the metal foil even if the metal foil printing is scraped off. Appearance information is retained, and the print portion is colored by rubbing the thermal recording paper.
[0012]
Further, since a protective film for enhancing the scratch resistance is applied to a predetermined area of the thermal recording paper, the scratch resistance of the thermal recording paper is improved.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the description of the embodiments, the same reference numerals are given to the same functions.
[0014]
1 is a plan view of a bus commuter pass according to an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line BB of FIG. 1, and FIG. 3 is a bus commuter pass according to another embodiment of the present invention. FIG. 4 is a cross-sectional view taken along the line CC of FIG.
[0015]
That is, as shown in FIG. 1 and FIG. 2, printed information for forgery prevention, such as a bus commuter pass 20, has various information 22 such as the date of a metal foil, such as a gold foil, on a thermal recording paper 21. Used for thermal transfer printing.
[0016]
The heat-sensitive recording paper 21 comprises a paper base 23 made of paper or other synthetic paper, and a heat-sensitive layer 24 coated on the surface of the paper base 23. The heat-sensitive layer 24 is a colorless leuco dye (electron donor), For example, crystal violet lactone and an acidic substance (electron acceptor) such as bisphenol A are dispersed in a resin binder.
[0017]
Since the various information 22 of the gold foil is printed on the heat-sensitive layer 24 by thermal transfer as described above, the heat-sensitive layer 24 immediately below the print of the gold foil is colored black (red or blue) by the heat at the time of the heat transfer, and the heat-sensitive recording paper. Various information 22 is also printed on 21.
[0018]
Since the bus commuter pass 20 is printed with gold foil on the heat-sensitive layer 24 of the thermal recording paper 21 as described above, when the bus commuter pass 20 is color-copied, the gold foil print is mirror-reflected and transferred to black. Therefore, the counterfeiting of the bus commuter pass 20 by the copying machine is prevented.
[0019]
Further, since the bus commuter pass 20 uses the thermal recording paper 21, in order to falsify information such as the date, when the printed part is rubbed with a nail or a coin, the leuco dye and the developer are caused by frictional heat or the like. As a result, the heat-sensitive layer 24 develops a black color and can prevent falsification of information.
[0020]
Even if the printing of the gold foil is rubbed, various information 22 printed on the thermal recording paper 21 appears, so that the various information 22 is securely held.
[0021]
In the bus commuter pass 30 shown in FIGS. 3 and 4, various information 32 such as the date of the gold foil is thermally transferred and printed on the heat sensitive layer 34 of the heat sensitive recording paper 31 by a gold foil ribbon.
[0022]
The heat-sensitive recording paper 31 is obtained by applying a surface of a heat-sensitive layer 34 on a paper substrate 33 made of paper or other synthetic paper. The heat-sensitive layer 34 is a colorless leuco dye (electron donor) such as crystal violet lactone. And an acidic substance (electron acceptor) such as bisphenol A is dispersed in a resin binder.
[0023]
The heat-sensitive layer 34 immediately below the gold foil print is colored black by heat when the gold foil print is thermally transferred, and various information 32 is also printed on the heat-sensitive recording paper 31.
[0024]
The various information 32 is composed of important information 32a and general information 32b that are particularly required to prevent forgery such as date, and enhances scratch resistance on the heat sensitive layer 34 other than the important information area 36 on which the important information 32a is printed. A protective film 37 is deposited.
[0025]
Accordingly, since the bus commuter pass 30 is printed with gold foil on the thermal recording paper 31, when the bus commuter pass 30 is color-copied, the gold leaf print is mirror-reflected and transferred to black so that copying forgery is easy. Is prevented.
[0026]
Further, in order to falsify important information 32a such as date, when the printed portion is rubbed with a nail or a coin, the leuco dye and the developer are melted by frictional heat and the heat-sensitive layer 34 of the heat-sensitive recording paper 31 is colored black. Therefore, falsification of the important information 32a can be prevented.
[0027]
At this time, even if the printing of the gold foil is scraped off, the important information 32a is securely held because the important information 32a is printed on the thermal recording paper 31.
[0028]
In addition, since the thermal recording paper 31 is covered with a protective film 37 for improving the scratch resistance, the thermal resistance of the thermal recording paper 31 is improved. Is done.
[0029]
As described above, the bus commuter passes 20 and 30 of the present embodiment use the thermal recording papers 21 and 31, and the bus commuter passes 20 and 30 are printed on the thermal recording papers 21 and 31 with gold foil. When the color copy is made, the gold leaf print is mirror-reflected and transferred to black, so that it is possible to prevent forgery of the bus commuter passes 20 and 30 due to the copy.
[0030]
In addition, since the various information 22 and 32 are printed on the thermal recording papers 21 and 31 due to heat at the time of thermal transfer of the gold foil printing, the various information 22 and 32 are retained even if the gold foil printing is scraped.
[0031]
Further, when the printing unit is rubbed to falsify the various information 22 and 32, the heat-sensitive layers 24 and 34 of the heat-sensitive recording paper 21 and 31 are colored black, so that falsification can be prevented.
[0032]
Further, since the protective film 37 for enhancing the scratch resistance is applied to a predetermined area of the thermal recording paper 31, the scratch resistance of the predetermined area of the thermal recording paper 31 is improved and no color is generated even if it is rubbed. 30 stains can be prevented, and printing can be kept clear.
[0033]
In the present embodiment, the gold foil is printed on the thermal recording papers 21 and 31. However, the present invention is not limited to this. For example, silver foil or other metal foil that is specularly reflected may be printed.
[0034]
Furthermore, aluminum or tin is mainly used as a material for the metal foil.
[0035]
In addition, the bus commuter pass 20 or 30 has been described as an example of the printed matter for preventing forgery in this embodiment, but it goes without saying that it is applied to all printed matter that is necessary to prevent forgery such as important documents.
[0036]
【The invention's effect】
As understood from the above description, according to the forgery-preventing printed matter of the present invention, when the printed matter is copied by performing printing of a metal foil such as a gold foil or a silver foil on the heat-sensitive layer of the heat-sensitive recording paper, Since the printed metal foil is specularly reflected and transferred to black, it is possible to prevent forgery of the printed matter by copying.
[0037]
In addition, since the thermal recording paper just under the printing of the metal foil is also printed, even if the metal foil printing is scraped off, the thermal recording paper print appears and holds the printing. Can do.
[0038]
Further, when the print portion of the thermal recording paper is rubbed, the color is developed, so that the falsification of the print can be prevented.
[0039]
In addition, since a protective film for improving scratch resistance is applied to a predetermined area of the thermal recording paper, the scratch resistance of the predetermined area is improved, and coloring does not occur even when it is rubbed. And the printing can be kept clear.
[Brief description of the drawings]
FIG. 1 is a plan view of a bus commuter pass according to an embodiment of the present invention.
2 is a cross-sectional view taken along the line BB in FIG.
FIG. 3 is a plan view of a bus commuter pass according to another embodiment of the present invention.
4 is a cross-sectional view taken along the line CC of FIG. 3;
FIG. 5 is a plan view of a conventional bus commuter pass.
6 is a cross-sectional view taken along line AA in FIG.
[Explanation of symbols]
10, 20, 30 Bus commuter pass 11, 23, 33 Paper base material 12, 22, 32 Various information 21, 31 Thermal recording paper 24, 34 Thermal layer 32a Important information 32b General information 36 Important information area 37 Protective film

Claims (4)

An anti-counterfeit printed matter, wherein a metal foil is printed on a heat-sensitive layer of a heat-sensitive recording paper by thermal transfer. The metal foil is printed on the heat-sensitive layer of the heat-sensitive recording paper by thermal transfer, and the heat-sensitive layer immediately below the metal foil print is colored by heat at the time of heat transfer, and the heat-sensitive recording paper is printed. Print for anti-counterfeiting. The printed matter for preventing forgery according to claim 1 or 2, wherein a gold foil or a silver foil is used as the metal foil. 4. The forgery-preventing printed matter according to claim 3, wherein a protective film for enhancing scratch resistance is attached to a predetermined region of the heat-sensitive recording paper.

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