JP2009000832A - Forgery-proof printed matter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide forgery-proof printed matter, the idea of which can be applied to valued printed matter, e.g. a bank note, a stock certificate, valuable securities, a toll road ticket, a passport, a gift certificate and a card, all of which need to be protected against the forging act. <P>SOLUTION: This forgery-proof printed matter has a mark, printed on a paper base which indicates a difference in the intensity of a transmitted infrared light from that in an unmarked area. In addition, the printed matter has a printed pattern which is formed at least, on a part of the mark and at least, on one of the sides of the paper base, using an infrared transmitting magnetic ink composition. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an anti-counterfeit printed matter applied to a valuable printed matter that needs to be counterfeited such as a banknote, a stock certificate, a securities, a passport, a passport, a gift certificate or a card.

  Banknotes, stock certificates, securities, passports, passports, gift certificates, cards, stamps, product tags, tickets, pass tickets such as commuter passes, toll road tickets, etc. In addition, it is required not to be counterfeited or tampered with. Examples of the anti-counterfeiting technology by printing include printed matter using infrared absorbing ink, infrared pair ink, magnetic ink, magnetic pair ink, or the like. As for the paper, a mark or the like in which the transmitted light intensity of the paper base material is changed can be used.

  For example, as a printed matter using infrared pair ink, a printed layer is formed on coated paper, and the printed layer is a first region printed with black ink using carbon black, and black ink containing indigo ink, yellow ink, and red ink. The printed area is formed of a second area that is printed with ink, and the printed material is usually the same color in the first area and the second area under normal light, but the first area when viewed with an infrared display device. A technique that can be confirmed only is disclosed (for example, see Patent Document 1).

  Further, the printed matter using magnetic ink has a recording portion on which information is recorded and a plurality of magnetic barcodes on which information on recording or reproduction of information with respect to the recording portion is recorded. There is disclosed a recording medium having different magnetic amounts, wherein the magnetic barcode is composed of bars made of different magnetic ink amounts or magnetic materials (for example, Patent Document 2). reference).

  Further, the printed matter using magnetic pair ink is a printed matter including at least a first printed image and a second printed image in at least a part of the design, and the first printed image has an absorption band from the ultraviolet region to the visible light region. And the second printed image is different from the first printed image in terms of magnetic properties and optical properties, and is printed with a first magnetic ink composition containing a magnetic material having a property of transmitting light in the infrared region. A magnetic printed matter that is printed with a different second magnetic ink composition is disclosed (for example, see Patent Document 3).

  Further, for the purpose of machine reading and authenticity determination, a technique for forming and reading a mark in which the transmitted light intensity of a paper substrate is changed and reading is disclosed (for example, see Patent Document 4).

  Thus, conventionally, as a machine reading method formed by printing, there has been a technique of printing on a substrate with a magnetic pair ink or an infrared pair ink and machine reading it. On the other hand, as a machine reading method for forming on a sheet, there is a technique for forming and reading a mark in which the transmitted light intensity of a paper substrate is changed.

JP 2003-302519 A (6th page, FIG. 7) JP 63-223892 A (page 1-5, Fig. 1-4) Japanese Patent Laying-Open No. 2005-268655 (page 1-8, FIG. 1) JP 2001-10197 A (page 1-9, FIG. 1-7)

  Japanese Patent Application Laid-Open No. 2003-302519 is a technique for determining authenticity in reading a print area printed with printing inks having different infrared absorption characteristics, and does not describe reading of a magnetic sensor. In JP 2005-268655 A, an area formed by the first magnetic ink composition containing a magnetic material having a property of transmitting light in the infrared region is effective for machine reading by an infrared sensor. There has been a demand for anti-counterfeit printed matter that cannot obtain a signal and has an effective signal in this region. Furthermore, Japanese Patent Application Laid-Open No. 2001-10197 is a technique for performing authenticity determination by reading only a mark in which the transmitted light intensity of a paper substrate is changed, and does not describe reading of a magnetic sensor.

  In addition, since JP 2002-302519 A, JP 63-238992 A, and general magnetic materials have a characteristic of absorbing light in the visible and infrared regions, the above-described marks are used. In the case of printing, there is a problem that reading is obstructed.

  The present invention aims to solve the above-mentioned problems, has a mark on a part of the paper substrate, the mark and the area where the mark is not applied, the intensity of infrared transmitted light is different, Even when a printed pattern is applied on the mark, the mark can be read without being obstructed by the printed area formed on the mark when the mark is read in the infrared region. The proposed printing is a new anti-counterfeit printed matter that can be machine-readable by a magnetic sensor.

The present invention has a mark on a part of the paper substrate, the mark and the area where the mark is not applied have different infrared transmitted light intensity, and a printed pattern is formed on at least a part of the mark, The printed pattern is an anti-counterfeit printed matter formed on at least one surface of the paper base material by an infrared transmitting magnetic ink composition.

Further, the present invention has a mark on a part of the paper base material, and the mark and the region where the mark is not provided have different infrared transmitted light intensities. A printed pattern composed of a region and a second region is formed, and the printed pattern is formed on at least one surface of the paper base, and at least a part of the first region and at least one of the marks are formed on the mark. A second region is formed, the first region is formed by an infrared transmitting magnetic ink composition, and the second region is an infrared transmitting ink composition that does not contain a magnetic material or the first region. The anti-counterfeit printed matter is formed of an infrared transmitting magnetic ink composition that is different in type and / or blending amount from the magnetic material mixed in the infrared transmitting magnetic ink composition.

Further, the present invention provides an infrared transmitting ink composition or an infrared transmitting magnetic ink composition that does not contain the magnetic material forming the second region, and an infrared transmitting magnetic ink composition that forms the first region, In the wavelength region of light of 200 to 700 nm, the anti-counterfeit printed matter is characterized in that reflection characteristics and / or transmission characteristics are different from each other.

Further, the present invention provides an infrared transmitting ink composition or an infrared transmitting magnetic ink composition that does not contain the magnetic material forming the second region, and an infrared transmitting magnetic ink composition that forms the first region, An anti-counterfeit printed matter characterized in that at least one of the presence / absence of light emission, light emission wavelength and afterglow wavelength when irradiated with light in a wavelength region of 200 to 700 nm is different from each other.

In addition, the present invention is the anti-counterfeit printed matter, wherein the mark is a crease.

  There is a mark on a part of the paper base, and the mark and the unmarked area have different infrared transmitted light intensity, and even when a printed pattern is applied on the mark, the mark can be read in the infrared area. The printed pattern can be detected by a magnetic sensor. Accordingly, since the mark can be mechanically read and the printed pattern can be mechanically read within a specific area, at least two authenticity determinations can be made, and a forgery-preventing printed matter having an excellent authenticity determination effect can be obtained. Furthermore, since the mark can be concealed by forming a printed pattern on the mark, the secrecy can be improved.

  Further, the paper base material has a mark having a transmitted light amount different from that of the paper base material, a printed pattern is applied to the front surface and / or the back surface of the mark, and the printed pattern to be formed on the mark is defined as the first region and the first region. By forming the first region and the second region with different magnetic characteristics and / or optical characteristics, a complicated magnetic signal or optical signal can be obtained, and the printed matter has an excellent anti-counterfeit effect.

  Furthermore, the anti-counterfeit printed matter of the present invention is excellent in the anti-counterfeiting effect because it becomes difficult to read the mark in the infrared region when a forgery is attempted by forming a printed pattern with a printer or a copying machine.

  The best mode for carrying out the present invention will be described with reference to the drawings. However, the present invention is not limited to the best mode for carrying out the invention described below, and includes various other embodiments within the scope of the technical idea described in the scope of claims. .

  A portion of the paper substrate 1 has a mark 2, and the region of the paper substrate 1 where the mark 2 and the mark 2 are not applied has different intensities of infrared transmitted light. Examples of the mark 2 include a mark formed by filling, and a mark formed of a transparent resin such as varnish or medium.

  A crease mark is a three-dimensional structure consisting of irregularities and denseness of the paper layer obtained by applying regular external force to the pulp fiber material before hydrogen bonding of the pulp fiber material in the paper manufacturing process. This means a typical paper layer structure. In addition, there are white watermarks whose transmitted light intensity is stronger than the surroundings and black watermarks whose transmitted light intensity is weaker than the surroundings. However, the marks according to the present invention include white watermarks. Alternatively, a black watermark may be used, and a mark by a watermark may be formed at a predetermined position on the sheet so that each mark has a uniform transmitted light intensity for each mark. At this time, the marks may be arranged side by side with a plurality of watermarks having different transmitted light intensities with uniform transmitted light intensity for each mark, or each mark has a uniform transmitted light intensity. A plurality of watermarks having different transmitted light intensities may be adjacent to each other without leaving an interval, and there is no particular limitation on the mark configuration.

  The mark formed of a transparent resin such as varnish or medium is not particularly limited, such as intaglio printing, offset printing, gravure printing, inkjet or laser printer.

  For the marks of the present invention, code information such as barcodes and two-dimensional barcodes and designs such as geometric patterns, characters, symbols and figures can be used. In order to ensure stable reading accuracy, even if there is a slight change in the reading position by the machine, it is uniform for each mark so that fluctuations in the mark width, mark position, mark interval, infrared transmitted light intensity, etc. can be reduced It is preferable to use a mark with a simple design having a high infrared transmission light intensity.

(Forgery prevention printed matter A1)
FIG. 1A shows an anti-counterfeit printed matter A1. FIG.1 (b) is XX 'sectional drawing of the forgery prevention printed matter A1 of Fig.1 (a). As shown in FIG. 1A and FIG. 1B, a paper substrate 1 has a mark 2 having a high transmitted light intensity on a part of the paper substrate 1, and a printed pattern 3 is formed on the mark 2. Is done. In FIGS. 1A and 1B, the printed pattern 3 is formed on the entire mark 2, but the printed pattern 3 may be formed on at least a part of the mark 2. The printed pattern 3 is printed with an infrared transmitting magnetic ink composition. Moreover, a printing area | region can also be formed with the ink composition in which the magnetic characteristic and / or optical characteristic differed from the infrared rays permeable magnetic ink composition adjacent to or adjoining the printing pattern 3 (not shown). In the forgery-preventing printed matter A1 in the present embodiment, the structure of the mark 2 having higher infrared transmission light intensity than the paper base material 1 is described, but the mark 2 having lower infrared transmission light intensity than the paper base material 1 is described. It may be.

  FIG.1 (c) is a schematic diagram of the waveform which shows the infrared rays transmittance | permeability of the arrow part of the forgery prevention printed matter A1 shown to Fig.1 (a). As shown in FIG. 1C, the area of the mark 2 has a higher infrared transmittance than the area of the paper base material 1 alone (solid portion) and the area of the printed pattern 3 alone, and a waveform S1 is obtained. 2 can be read. Further, the read infrared transmission intensity data is compared with the infrared transmission intensity data which is a genuine reference recorded in advance, and the authenticity determination of the anti-counterfeit printed matter A1 is performed based on whether the data is within a predetermined threshold. It can be carried out.

  FIG.1 (d) is a schematic diagram of the waveform which measured the arrow part of the forgery prevention printed matter A1 shown to Fig.1 (a) with the magnetic sensor. As shown in FIG. 1 (d), the area of the printed pattern 3 has a high magnetic intensity, and a waveform P1 is obtained, so that the printed pattern 3 can be read. Further, the read magnetic strength data is compared with magnetic strength data that is recorded in advance as a genuine reference, and the authenticity determination of the forgery-preventing printed matter A1 is performed based on whether or not it is within a predetermined threshold. Can do.

(Forgery prevention printed matter A2)
FIG. 2A shows a forgery prevention printed matter A2. FIG. 2B is a cross-sectional view taken along the line XX ′ of the anti-counterfeit printed matter A2 of FIG. As shown in FIGS. 2A and 2B, a mark 2 having a transmitted light intensity higher than that of the paper base material 1 is provided on a part of the paper base material 1, and the printed pattern 3 is formed on the mark 2. It is formed. The printed pattern 3 includes a first area 3a and a second area 3b. The first region 3a is printed with an infrared transmitting magnetic ink composition, and the second region 3b is mixed with an infrared transmitting ink composition containing no magnetic material or an infrared transmitting magnetic ink composition forming the first region 3a. The printed magnetic material is printed with an infrared transmitting magnetic ink composition containing different kinds of magnetic materials and / or different amounts of magnetic materials.

  The infrared transmitting magnetic ink composition forming the second region 3b can be blended with a magnetic material in which the kind and / or blending amount of the magnetic material is different. The present invention is not limited to this, and that the magnetic properties in the present invention are different means that at least one of the presence / absence of a magnetic material, the blending amount of the same magnetic material, and the blending amount of different kinds of magnetic materials is at least one. The characteristic quantity is effectively used as a difference in the magnetic detection voltage or magnetic detection waveform by reading a known magnetic sensor by at least one characteristic such as initial magnetic permeability, residual magnetic flux density, coercive force, and Curie temperature. Has detectable characteristics. Furthermore, when the sensors having different detection sensitivities are combined due to the difference in the plurality of magnetic characteristics, the magnetic detection waveform shape detected by the first sensor and the magnetic detection waveform shape detected by the second sensor are greatly increased. Characteristic changes such as changing can be formed.

  Infrared transmitting magnetic ink composition forming first region 3a and infrared transmitting ink composition not containing magnetic material forming second region 3b or infrared transmitting magnetic ink composition forming first region 3a The infrared-transmitting magnetic ink composition mixed with the mixed magnetic material is different in the kind of magnetic material and / or the blending amount of the magnetic material, and has reflection characteristics and / or in the wavelength region of light of 200 to 700 nm. The transmission characteristics may be different from each other. Or the infrared transmission magnetic ink composition which forms the 1st field 3a, the infrared transmission ink composition which does not contain the magnetic material which forms the 2nd field 3b, or the infrared transmission magnetic ink composition which forms the 1st field 3a Infrared transmitting magnetic ink composition blended with different magnetic material and / or blending amount of magnetic material from the magnetic material mixed with the product, the presence or absence of light emission when irradiated with light of 200-700 nm, At least one of the emission wavelength and the afterglow wavelength may be different from each other. For example, if it permeate | transmits in an infrared region, materials, such as an ultraviolet-excited visible luminescent material, can also be contained.

  In FIGS. 2A and 2B, the printed pattern 3 is formed on the entire mark 2, but the printed pattern 3 may be formed on at least a part of the mark 2. In the forgery prevention printed matter A2 in the present embodiment, the structure of the mark 2 having higher infrared transmission light intensity than the paper base material 1 is described, but the mark 2 having lower infrared transmission light intensity than the paper base material 1 is described. It may be. By making the colors of the first region 3a and the second region 3b the same color in the region under visible light (the naked eye), the first region 3a and the second region 3b cannot be separated and visually recognized. Therefore, the forgery prevention effect is further improved.

  In addition, when forming a printing pattern with infrared absorption magnetic ink, it prints so that it may not overlap with the area | region of the mark 2. FIG.

  FIG.2 (c) is a schematic diagram of the waveform which shows the infrared rays transmittance | permeability of the arrow part of the forgery prevention printed matter A2 shown to Fig.2 (a). As shown in FIG. 2C, the area of the mark 2 has a higher infrared transmittance than the area of the paper base material 1 alone (solid portion) and the area of the printed pattern 3 alone, and a waveform S2 is obtained. 2 can be read. Furthermore, the read infrared transmission intensity data is compared with the infrared transmission intensity data that is recorded in advance as a genuine reference, and the authenticity determination of the forgery-preventing printed matter A2 is performed depending on whether the data is within a predetermined threshold. It can be carried out.

  FIG. 2D is a schematic diagram of a waveform obtained by measuring the arrow portion of the anti-counterfeit printed matter A2 shown in FIG. As shown in FIG. 2D, the area of the printed pattern 3 has a high magnetic intensity, a waveform P2 is obtained, and the printed pattern 3 can be read, so that the first area 3a and the second area 3b are magnetic. It can be seen that the strength is different. Further, the read magnetic strength data is compared with the magnetic strength data which is recorded in advance as a genuine reference, and the authenticity determination of the anti-counterfeit printed matter A2 is performed based on whether the data is within a predetermined threshold. Can do.

(Forgery prevention printed matter A3)
FIG. 3A shows a forgery prevention printed matter A3. FIG. 3B is a cross-sectional view taken along the line XX ′ of the anti-counterfeit printed matter A3 of FIG. As shown in FIGS. 3A and 3B, a mark 2 having a transmitted light intensity higher than that of the paper substrate 1 is provided on a part of the paper substrate 1. A surface printed pattern 4 is formed on the surface of the paper substrate 1 on the mark 2, and a back printed pattern 5 is formed on the back surface of the paper substrate 1 on the mark 2. In FIG. 3A and FIG. 3B, the front surface printed pattern 4 and the back surface printed pattern 5 are formed on the entire mark 2, but the front surface printed pattern 4 and the back surface printed pattern 5 are formed on at least a part of the mark 2. Should just be formed. The front surface printed pattern 4 and the back surface printed pattern 5 are printed with an infrared transmitting magnetic ink composition. In the forgery prevention printed matter A3 in the present embodiment, the structure of the mark 2 having higher infrared transmission light intensity than the paper base material 1 is described, but the mark 2 having lower infrared transmission light intensity than the paper base material 1 is described. It may be.

  FIG.3 (c) is a schematic diagram of the waveform which shows the infrared rays transmittance | permeability of the arrow part of the forgery prevention printed matter A3 shown to Fig.3 (a). As shown in FIG. 3C, the area of the mark 2 has a higher infrared transmittance than the area of only the paper base material 1 (solid portion), the area of only the front surface printed pattern 4 and the back surface printed pattern 5, and has a waveform. S3 is obtained, and the mark 2 can be read. Further, the read infrared transmission intensity data is compared with the infrared transmission intensity data which is a genuine reference recorded in advance, and the authenticity determination of the anti-counterfeit printed matter A3 is performed depending on whether it is within a predetermined threshold. It can also be done.

  FIG. 3D is a schematic diagram of a waveform obtained by measuring the arrow portion of the anti-counterfeit printed matter A3 shown in FIG. As shown in FIG. 3D, the areas of the front surface printed pattern 4 and the back surface printed pattern 5 have high magnetic strength, and a waveform P3 is obtained, so that the front surface printed pattern 4 and the back surface printed pattern 5 can be read. The anti-counterfeit printed matter A3 has a printed pattern formed on the front and back surfaces by the infrared transmitting magnetic ink composition, so that a waveform having a stronger magnetic strength than the anti-counterfeit printed matter A1 is obtained (however, the same ink and the same film). If thick). Further, the read magnetic strength data is compared with the magnetic strength data that has been recorded in advance as a genuine reference, and the authenticity determination of the anti-counterfeit printed matter A3 is performed based on whether the data is within a predetermined threshold. Can do.

(Forgery prevention printed matter A4)
FIG. 4A shows an anti-counterfeit printed matter A4. FIG. 4B is a cross-sectional view taken along line XX ′ of the forgery-preventing printed matter A4 in FIG. As shown in FIGS. 4A and 4B, a mark 2 having a transmitted light intensity higher than that of the paper substrate 1 is provided on a part of the paper substrate 1. A surface printed pattern 4 is formed on the surface of the paper substrate 1 on the mark 2. The surface printed pattern 4 includes a first region 4a and a second region 4b. The first region 4a is printed with an infrared transmitting magnetic ink composition, and the second region 4b is mixed with an infrared transmitting ink composition that does not contain a magnetic material or an infrared transmitting magnetic ink composition that forms the first region 4a. The printed magnetic material is printed with an infrared transmitting magnetic ink composition in which the kind of magnetic material and / or the blending amount of the magnetic material is different. Furthermore, the back surface printed pattern 5 includes a first region 5a and a second region 5b. The first region 5a is printed with an infrared transmitting magnetic ink composition, and the second region 5b is an infrared transmitting ink composition that does not contain a magnetic material, or an infrared transmitting magnetic ink composition that forms the first region 5a. The magnetic material mixed in is printed with an infrared transmitting magnetic ink composition in which the kind of magnetic material and / or the blending amount of the magnetic material is different. 4A and 4B, the front surface printed pattern 4 and the back surface printed pattern 5 are formed on the entire mark 2, but the front surface printed pattern 4 and the back surface printed pattern 5 are formed on at least a part of the mark 2. Should just be formed. In the forgery prevention printed matter A4 in the present embodiment, the structure of the mark 2 having higher infrared transmission light intensity than the paper base material 1 is described, but the mark 2 having lower infrared transmission light intensity than the paper base material 1 is described. It may be. By making the colors of the first region 4a and the second region 4b, the first region 5a and the second region 5b the same color in the region under the visible light (the naked eye), the first region 4a and the second region 4b Since the region 4b, the first region 5a, and the second region 5b cannot be separated and visually recognized, the forgery prevention effect is further improved.

  Note that the first region 4a, the second region 4b, the second region 5a, and the second region 5b may have different types and / or blending amounts of magnetic materials.

  Infrared transmitting magnetic ink composition forming first region 4a, Infrared transmitting magnetic ink composition forming first region 5a, and Infrared transmitting ink composition containing no magnetic material forming second region 4b Alternatively, the infrared ray transmitting magnetic ink composition is mixed with the magnetic material mixed in the infrared ray transmitting magnetic ink composition forming the first region 4a and different in the kind of magnetic material and / or the mixing amount of the magnetic material, and The infrared ray transmitting ink composition not containing the magnetic material forming the second region 5b or the magnetic material mixed in the infrared ray transmitting magnetic ink composition forming the first region 5a is the kind of magnetic material and / or the magnetic material Infrared transmitting magnetic ink compositions blended in different amounts are different in reflection characteristics and / or transmission characteristics in the light wavelength region of 200 to 700 nm. It may have. Alternatively, an infrared transmitting magnetic ink composition that forms the first region 4a, an infrared transmitting magnetic ink composition that forms the first region 5a, and an infrared transmitting ink that does not contain the magnetic material that forms the second region 4b Infrared transmitting magnetic ink composition in which the kind of magnetic material and / or the mixing amount of the magnetic material is different from the magnetic material mixed in the composition or the infrared transmitting magnetic ink composition forming the first region 4a And the infrared ray transmitting ink composition not containing the magnetic material forming the second region 5b or the magnetic material mixed with the infrared ray transmitting magnetic ink composition forming the first region 5a is the kind of the magnetic material and / or Alternatively, the infrared transmitting magnetic ink composition blended with different blending amounts of the magnetic material has little or no light emission, light emission wavelength and afterglow wavelength when irradiated with light of 200 to 700 nm. Kutomo one may be different from each other.

  In the forgery-preventing printed matter A4, the front surface printed pattern 4 is formed by the first region 4a and the second region 4b, and the back surface printed pattern 5 is formed by the first region 5a and the second region 5b. The invention is not limited to this, and the front surface printed pattern 4 may be formed by the first region 4a and the second region 4b, and the back surface printed pattern 5 that is not divided into regions may be formed. Moreover, the back surface printed pattern 5 may be formed by the first region 5a and the second region 5b, and the front surface printed pattern 4 whose surface is not divided may be formed.

  FIG.4 (c) is a schematic diagram of the waveform which shows the infrared rays transmittance | permeability of the arrow part of the forgery prevention printed matter A4 shown to Fig.4 (a). As shown in FIG. 4C, the area of the mark 2 has a higher infrared transmittance than the area of only the paper base material 1 (solid portion), the area of only the front surface printed pattern 4 and the back surface printed pattern 5, and has a waveform. S4 is obtained, and the mark 2 can be read. Furthermore, the read infrared transmission intensity data is compared with the infrared transmission intensity data that is recorded in advance as a genuine reference, and the authenticity determination of the anti-counterfeit printed matter A4 is performed based on whether the data is within a predetermined threshold. It can be carried out.

  FIG. 4D is a schematic diagram of a waveform obtained by measuring the arrow portion of the forgery-preventing printed matter A4 shown in FIG. As shown in FIG. 4D, the areas of the front surface printed pattern 4 and the back surface printed pattern 5 have high magnetic strength, and the waveform P4 is obtained, so that the front surface printed pattern 4 and the back surface printed pattern 5 can be read. Since this anti-counterfeit printed matter A4 has a printed pattern formed on the front and back surfaces by the infrared transmitting magnetic ink composition, a waveform having a stronger magnetic strength than the anti-counterfeit printed matter A1 is obtained (however, the same ink and the same For film thickness). Further, the read magnetic strength data is compared with the magnetic strength data that is a genuine reference that has been recorded in advance, and the authenticity determination of the forgery-preventing printed matter A4 is performed based on whether the data is within a predetermined threshold. Can do.

  The reading of the mark 2 is not limited to the above description, and the transmitted light intensity or reflected light intensity in a predetermined region including the mark 2 of the paper base is read under infrared light and recorded in advance. By comparing the data with the transmitted light intensity or reflected light intensity (not shown), it is possible to determine the authenticity of the forgery-preventing printed matter. In this case, the difference in transmitted light intensity or reflected light intensity between the areas corresponding to the respective marks having uniform transmitted light intensity corresponds to the area obtained by a genuine anti-counterfeit printed matter recorded in advance. Compared with the difference in transmitted light intensity or reflected light intensity difference between areas, it is also possible to determine the authenticity of the anti-counterfeit printed matter, or areas corresponding to respective marks having uniform transmitted light intensity Compared with the data of the ratio of transmitted light intensity or reflected light intensity between areas corresponding to the area obtained by a genuine anti-counterfeit printed matter recorded in advance, the ratio of transmitted light intensity or reflected light intensity of It is also possible to determine authenticity of the forgery-preventing printed matter.

  In order to read the mark 2, it is necessary to measure the intensity of infrared transmission light in a predetermined area. Therefore, the infrared transmission light in the predetermined area of the paper substrate is detected by a fixed or moving light receiving sensor, and the area is detected. What is necessary is just to measure the intensity | strength of the infrared transmitted light detected in (2). In addition, in order to measure the infrared transmitted light intensity in the region corresponding to each mark having a uniform infrared transmitted light intensity, it is fixed for each region corresponding to each mark 2 having a different infrared transmitted light intensity. Infrared transmitted light may be detected by a type or moving light receiving sensor, and the intensity of the infrared transmitted light detected for each region may be measured.

  The magnetic characteristics and optical characteristics of the anti-counterfeit printed matter of the present invention depend on the type and amount of the magnetic material, the optical characteristics of the substrate, and the ink film thickness. Therefore, it is necessary to control the magnetic reading intensity by the magnetic head and the optical characteristic reading intensity by the light receiving sensor.

  In the anti-counterfeit printed matter A1, A2, A3, and A4, when using infrared absorbing magnetic ink, printing is performed so as not to overlap the area of the mark 2.

  The infrared transmitting magnetic ink composition used for the anti-counterfeit printed matter A1, A2, A3 and A4 is an ink having a high transmittance in the infrared region. Furthermore, the magnetic material is preferably a material having a high remanent magnetization and / or magnetic permeability. The magnetic material mixed with the infrared ray transmitting ink composition not containing the magnetic material or the infrared ray transmitting magnetic ink composition forming the first region used for the anti-counterfeit printed matter A2 or A4 is the kind of magnetic material and / or the magnetic material. Infrared transmitting magnetic ink compositions blended with different amounts of materials are inks with high transmittance in the infrared region.

  The mark 2 of the anti-counterfeit printed matter A1, A2, A3 and A4 can be read by a general device capable of reading the infrared region. Further, the printed pattern 3 of the anti-counterfeit printed matter A1, A2, A3 and A4 can be read by a general magnetic reading device.

The infrared transmission magnetic ink composition used for the anti-counterfeit printed matter A1, A2, A3 or A4 has an absorption band from the ultraviolet region to the visible light region, has a property of transmitting light in the infrared region, and has a residual magnetization of 2 It is preferable that a magnetic material having 35 A · m ² / kg (emu / g) and having a coercive force of 0.796 kA / m to 31.84 kA / m (10 to 400 Oe) is contained. Moreover, it is preferable that the magnetic material whose average particle diameter is 10-600 nm is contained.

  Infrared transmitting magnetic ink composition used for anti-counterfeit printed matter A1, A2, A3 or A4 and infrared transmitting ink composition not containing magnetic material used for anti-counterfeit printed matter A2 or A4 or infrared transmitting forming first region The infrared ray transmitting magnetic ink composition, which is mixed with the magnetic material mixed in the magnetic ink composition with different kinds of magnetic materials and / or different amounts of the magnetic material, needs to contain the magnetic material in the vehicle. In addition, the weight ratio of the magnetic material to the vehicle is preferably set to magnetic material: vehicle = 1: 1 to 1:20.

  In addition, the magnetic material mixed with the infrared transmission magnetic ink composition used for the forgery prevention printed matter A1, A2, A3, or A4 and the infrared transmission magnetic ink composition that forms the first region used for the forgery prevention printed matter A2 or A4. There is no particular limitation on the magnetic material contained in the infrared transmitting magnetic ink composition that is blended with the material different in the kind of magnetic material and / or the blending amount of the magnetic material.

  Moreover, the infrared transmission magnetic ink composition used for the forgery prevention printed matter A1, A2, A3 or A4 and the infrared transmission ink composition which does not contain the magnetic material used for the forgery prevention printed matter A2 or A4 or the first region are formed. Infrared transmitting magnetic ink composition, which is mixed with the magnetic material mixed in the infrared transmitting magnetic ink composition, with a different kind of magnetic material and / or blending amount of the magnetic material, contains the magnetic material in the vehicle. However, the vehicle is not particularly limited. For example, oils and fats such as linseed oil, olive oil, castor oil and sunflower oil, natural waxes such as whale wax, beeswax, lanolin, carnauba wax, canderia wax and montan wax, paraffin wax, microcrystalline wax, oxidized wax, Synthetic waxes such as ester wax and low molecular weight polyethylene, higher fatty acids such as lauric acid, myristic acid, palmitic acid, stearic acid, furomenic acid and hebenic acid, higher alcohols such as stearyl alcohol and hebenyl alcohol, petrolatum and glycerin Soaps such as glucose, hydrocarbons such as ethylene glucose and amylose, esters such as fatty acid esters, amides such as stearamide and oleinamide, polyamide resins, polyester resins, Poxy resin, polyurethane resin, acrylic resin, vinyl chloride resin, cellulose resin, polyvinyl resin, petroleum resin, ethylene-vinyl acetate copolymer resin, phenol resin, styrene resin, rosin modified resin and From substances containing terbin resin, etc., natural rubber, styrene butadiene rubber, elastomers such as isoprene rubber and chloroprene rubber, tackifiers such as hydrogenated petroleum resin, silicone, liquid paraffin and fluororesin alone or in combination A dispersion medium can be used. Furthermore, if necessary, pigments, dyes, surfactants, fillers, antioxidants, desiccants and the like may be added to the dispersion medium.

  Infrared transmitting magnetic ink composition used for anti-counterfeit printed matter A1, A2, A3 or A4 and infrared transmitting ink composition not containing magnetic material used for anti-counterfeit printed matter A2 or A4 or infrared transmitting forming first region As a drying method of an infrared transmitting magnetic ink composition that is mixed with the magnetic material mixed in the magnetic ink composition with a different kind of magnetic material and / or blending amount of the magnetic material, offset ink and gravure ink are used. It is possible to use ordinary drying methods used for general ultraviolet curable inks, oxidatively polymerizable inks, solvent-type inks or water-evaporating inks used for screen inks and intaglio inks, etc. .

  In the above description, the waveform shape indicating the detection voltage in the quantitative type sensor corresponding to the density of the magnetic material in the printing area has been described as an example, but the authenticity determination of the forgery-preventing printed matter is limited to this sensor. The authenticity can be determined even by using a differential type magnetic sensor corresponding to the amount of change in magnetic flux.

  The printing substrate is not particularly limited as long as it is a substrate capable of forming light and shade information by infrared reflection or transmission.

  EXAMPLES Hereinafter, although this invention is demonstrated further in detail using an Example, the content of this invention is not limited to the range of these Examples.

(Example 1)
As shown in FIG. 5, the anti-counterfeit printed matter of Example 1 produced a paper substrate 1 having three penetration marks 2 at a predetermined interval by a papermaking method using a netting method. FIG. 5B is a sectional view taken along line XX ′ in FIG.

Next, an infrared transmitting magnetic ink composition having the following composition was prepared.
・ Magnetic material {residual magnetization 25 to 35 A · m ² / kg (emu / g), coercive force 19.9 to 31.84 kA / m (250 to 400 Oe), average particle diameter of about 10 to 600 nm}
10% by weight
・ 80% by weight of vehicle
・ Pigment, desiccant 10% by weight

  A printed pattern 3 made of an infrared transmitting magnetic ink composition was formed on the mark 2 of the obtained paper base material 1 by an intaglio printing machine to obtain a forgery-preventing printed material B1 shown in FIG. FIG. 6B is a sectional view taken along the line X-X ′ in FIG. The ink film thickness of the printed pattern 3 was about 12.5 μm.

  As a result of measuring the spectral reflectance from 200 nm, which is the ultraviolet region, to 2000 nm, which is the infrared region, the printed pattern 3 has a spectral reflectance of about 10% or less when the spectral reflectance of aluminum oxide is 100%. An absorption band was shown from the region to the visible light region (near 200 to 550 nm), and in the region extending from the wavelength region of 780 to 1900 nm, which is the infrared region, the spectral reflectance was 60% or more.

  In the infrared region, the region of the mark 2 has a higher infrared transmittance than the region of the paper base material 1 only (solid portion) and the region of the printed pattern 3 alone, and the waveform S5 shown in FIG. The mark 2 could be read. Further, in the area of the printed pattern 3, a waveform P5 shown in FIG. 7B was obtained by a sensor capable of measuring residual magnetization, and the printed pattern 3 was readable. Waveforms S5 and P5 are schematic diagrams.

(Example 2)
An infrared transmitting magnetic ink composition having magnetic properties different from those of the infrared transmitting magnetic ink composition prepared in Example 1 was prepared.
-Magnetic material {residual magnetization 2-15 A · m ² / kg (emu / g), coercive force 0.796-11.94 kA / m (10-150 Oe), average particle diameter of about 10-600 nm}
10% by weight
・ 80% by weight of vehicle
・ Pigment, desiccant 10% by weight

  Printing on the mark 2 of the paper substrate 1 obtained in Example 1 with the infrared transmitting magnetic ink composition obtained in Example 1 and the infrared transmitting magnetic ink composition obtained in Example 2 by an intaglio printing press. A pattern was made. The printed pattern is composed of a first region and a second region, and the first region is printed with an intaglio printing press by the infrared transmitting magnetic ink composition of Example 1, and the second region is that of Example 2. An anti-counterfeit printed matter was obtained by printing with an intaglio printing press using an infrared transmitting magnetic ink composition.

  In the infrared region, the mark region has a higher infrared transmittance than the region of the paper base material (solid region) and the region of only the printed pattern, and a waveform can be obtained and the mark can be read. In the printed pattern area, a waveform was obtained by a sensor capable of measuring residual magnetization, and the printed pattern could be read. Furthermore, a higher magnetic waveform was obtained in the first region than in the first region and the second region.

(Example 3)
On the mark on the surface of the paper substrate obtained in Example 1, a surface printing pattern made of the infrared transmitting magnetic ink composition obtained in Example 1 was formed by an intaglio printing machine, and the mark on the back surface of the paper substrate was formed. On the top, a back printed pattern made of the infrared transmitting magnetic ink composition obtained in Example 1 was formed by an intaglio printing machine to obtain an anti-counterfeit printed matter.

  In the infrared region, the mark region has a higher infrared transmittance than the region of the paper base material (solid region) and the region of only the printed pattern, and a waveform can be obtained and the mark can be read. In addition, in the surface printed pattern and the back printed pattern, a waveform was obtained by a sensor capable of measuring residual magnetization, and the surface printed pattern and the back printed pattern could be read. Further, the magnetic waveforms of the front surface printed pattern and the back surface printed pattern of Example 3 were higher in strength than the magnetic waveform of the printed pattern of Example 1.

Example 4
On the mark 2 on the surface of the paper substrate 1 obtained in Example 1, the infrared transmitting magnetic ink composition obtained in Example 1 by the intaglio printing machine and the infrared transmitting magnetic ink composition obtained in Example 2 were used. A surface printed pattern was prepared. The surface printed pattern is composed of a first region and a second region, and the first region is printed by an intaglio printing press with the infrared transmitting magnetic ink composition of Example 1, and the second region is Example 2. Infrared transmission magnetic ink composition of Example 1 and the infrared transmission magnetic ink composition obtained in Example 1 by the intaglio printing machine on the mark 2 on the back surface of the paper substrate 1. A back printed pattern was prepared using the infrared transmitting magnetic ink composition obtained in (1). The back printed pattern is composed of a first region and a second region, and the first region is printed with an intaglio printing press by the infrared transmitting magnetic ink composition of Example 1, and the second region is Example 2. The forged anti-counterfeit printed matter was obtained by printing with an intaglio printing press using the infrared transmitting magnetic ink composition.

  In the infrared region, the mark region has a higher infrared transmittance than the region of the paper base material (solid region) and the region of only the printed pattern, and a waveform can be obtained and the mark can be read. In addition, in the surface printed pattern and the back printed pattern region, a waveform was obtained by a sensor capable of measuring the residual magnetization, and the surface printed pattern and the back printed pattern could be read. In addition, the magnetic waveforms of the front surface printed pattern and the back surface printed pattern of Example 4 were higher in intensity than the magnetic waveform of the printed pattern of Example 1. Furthermore, a complex magnetic waveform was obtained in which the first area and the second area of the front surface printed pattern and the first area and the second area of the back surface printed pattern were synthesized.

It is a figure which shows the schematic diagram of the waveform obtained from the forgery prevention printed matter A1, its sectional drawing, and the forgery prevention printed matter A1. It is a figure which shows the schematic diagram of the waveform obtained from the forgery prevention printed matter A2, its sectional drawing, and the forgery prevention printed matter A2. It is a figure which shows the schematic diagram of the waveform obtained from forgery prevention printed matter A3, its sectional drawing, and forgery prevention printed matter A3. It is a figure which shows the schematic diagram of the waveform obtained from forgery prevention printed matter A4, its sectional drawing, and forgery prevention printed matter A4. 1 is a view showing a paper substrate 1 having a mark 2 of Example 1. FIG. It is a figure which shows the forgery prevention printed matter B1 of Example 1, and its sectional drawing. It is a figure which shows the schematic diagram of the waveform obtained from forgery prevention printed matter B1.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Paper base material 2 Mark 3 Print pattern 3a 1st area | region 3b 2nd area | region 4 Front surface print pattern 4a 1st area | region 4b 2nd area | region 5 Back surface print pattern 5a 1st area | region 5b 2nd area | region A1, A2 A3, A4, B1 Anti-counterfeit printed matter S1, S2, S3, S4, S5, P1, P2, P3, P4, P5 Waveform

Claims (5)

A part of the paper base has a mark, and the mark and the region where the mark is not provided have different infrared transmitted light intensities, and a printed pattern is formed on at least a part of the mark. An anti-counterfeit printed matter formed on at least one surface of the paper base material by an infrared transmitting magnetic ink composition. The mark has a mark on a part of the paper base, and the mark and the area where the mark is not provided have different infrared transmitted light intensities, and the first area and the second area are at least partially on the mark. The printed pattern is formed on at least one surface of the paper base, and at least a part of the first region and at least a part of the second region on the mark. The first region is formed of an infrared transmitting magnetic ink composition, and the second region is an infrared transmitting ink composition that does not contain a magnetic material, or an infrared transmitting magnetic material that forms the first region. An anti-counterfeit printed matter formed of an infrared transmitting magnetic ink composition having a different kind and / or blending amount from a magnetic material mixed in an ink composition. An infrared transmitting ink composition or an infrared transmitting magnetic ink composition that does not contain the magnetic material forming the second region, and an infrared transmitting magnetic ink composition that forms the first region are 200-700 nm light. The anti-counterfeit printed matter according to claim 2, wherein reflection characteristics and / or transmission characteristics are different from each other in a wavelength region. The infrared transmitting ink composition or infrared transmitting magnetic ink composition not containing the magnetic material forming the second region, and the infrared transmitting magnetic ink composition forming the first region are in a wavelength region of 200 to 700 nm. The forgery-preventing printed matter according to claim 2, wherein at least one of the presence / absence of light emission, the light emission wavelength, and the afterglow wavelength is different from each other. 5. The forgery-preventing printed matter according to claim 1, wherein the mark is a crease.

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