JP2008162233A - Truth-false distinction printed matter, truth-false distinction method and truth-false distinction system of this printed matter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a truth-false distinction printed matter in which perforating by a laser, etc., and printing by functional ink are combined, and to provide a truth-false distinction method of the printed matter and a truth-false distinction system. <P>SOLUTION: The truth-false distinction printed matter is formed of a base material 1, perforating 2 the base material by a laser, etc., and printing the front surface of the base material 1 with infrared transmission ink 5 and the rear surface with infrared absorption ink 6. In the case of observing with a visible light, both the front and rear surfaces cannot confirm the perforated holes, but in the case of observing with the infrared ray, in the observing from the front surface, the infrared transmission ink of the front surface is transmitted. The infrared absorption ink passed through the perforated hole 2 is observed as a black perforated pattern 7. In the observation from the rear surface, the infrared absorption ink of the rear surface is observed black, and the perforated hole 2 cannot be confirmed. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an authenticity determination printed matter, an authenticity determination method and an authenticity determination system of the printed matter, and in particular, an infrared ink is used to prevent forgery of the printed matter in a precious printed matter. In this way, anti-counterfeiting means is provided by machine reading.

  In general, a technique for finely perforating a substrate such as paper, a film, or a metal plate with a laser is known. In addition, perforations used to give valuable products such as banknotes, passports, securities and cards as an anti-counterfeiting effect are made by penetrating only the base material or the printed base material. A number, a character, etc. are comprised by arranging multiple.

  Infrared ink technology conceals image information with infrared ink and prints it, improving the anti-counterfeiting properties of printed products. Infrared ink is transparent under white light and absorbs light in the infrared region, uses the same color under white light and reflects the light in the infrared region and absorbs ink in pairs, under white light A combination of inks with different colors and different spectral characteristics in the infrared region can be considered, and the infrared reflection / absorption paired ink looks exactly the same color when viewed with the naked eye under white light, but the infrared absorption rate is in the infrared region. It consists of a combination of different inks.

  An information pattern is provided using ink containing an infrared absorbing substance such as carbon ink or leuco dye, and machine reading is performed by an infrared reader, and the presence / absence of the pattern is determined. Infrared absorbing materials such as black and leuco dyes have a light absorption property in the visible region, so that their presence is easily discerned by the naked eye.

  By having a base material on which a large number of fine perforations that are difficult to see with a laser are formed in a specific pattern, and by embedding the perforations by printing or coating one surface of the base material with a luminescent material, There has been proposed a forgery suppression formed body using fine perforations, a manufacturing method thereof, and a true / false determining apparatus that enable true / false determination by (see, for example, Patent Document 1).

  Also, a seal having a plurality of through-holes in a partial area of the paper of the securities printed matter, having a glitter image forming layer from the front and back of the printed matter so as to conceal the through-holes, and having a strength higher than the strength of the paper A securities printed matter obtained by thermally transferring a sticky patch has been proposed (see, for example, Patent Document 2).

Japanese Patent No. 3376408 Japanese Patent Laid-Open No. 9-30172

  With respect to perforation using a laser or the like for imparting an anti-counterfeiting effect to precious printed matter or the like, the risk of being counterfeited even with perforation has increased because the perforation apparatus has become relatively easy to obtain.

  Patent Document 1 is a forgery suppression formation in which a specific pattern is formed in a base material by perforation, and a luminescent material is applied to cover the opening of the perforation so as to embed the perforation. In addition to recognizing the array pattern of the perforations, the authenticity is determined by detecting a specific wavelength at which the luminescent material is excited to emit light.

  In Patent Document 2, when a securities printed matter is copied with a color copier or the like, the sticker-like sticker is visually recognized because it is an image forming layer having glitter. In addition, the security printed matter itself is destroyed when it is peeled off by transfer of the patch, which is a forgery prevention measure. In this way, a part of the paper or the like is fixed.

  The present invention has been considered in view of the above-described conventional technology, and by effectively using a perforation technique using a laser or the like used as an anti-counterfeiting effect on a precious printed matter or the like, it can be used in combination with a functional ink. It is an object of the present invention to provide a true / false discrimination printed matter capable of enhancing the forgery prevention effect, a true / false discrimination method and a true / false discrimination system for the printed matter.

  The invention according to claim 1 is a printed matter in which an information pattern is formed by a through hole in at least a partial region of the substrate, and at least a part of the information pattern formed by the through hole is concealed from the front and back surfaces of the substrate. Thus, it is a printed matter capable of authenticating authenticity formed by printing a printing pattern with printing ink on the front and back surfaces of the substrate.

  The invention described in claim 2 is a true / false discrimination printed matter based on the invention described in claim 1, wherein the printing ink is a functional printing ink.

    The invention described in claim 3 is based on the invention described in claims 1 and 2, and is formed by printing one printed surface of the base material with infrared absorbing ink and printing the other printed surface with infrared transmitting ink. This is a true / false discrimination printed matter.

  According to a fourth aspect of the present invention, there is provided a true / false discrimination printed matter obtained by printing the front and back surfaces of the substrate with an infrared transmitting ink on the premise of the first and second aspects.

  The invention according to claim 5 is a printed matter in which an information pattern is formed by a through hole in at least a partial region of the substrate, and at least a part of the information pattern formed by the through hole is concealed from the front and back surfaces of the substrate. As described above, a printing pattern with printing ink is printed on the front and back surfaces of the base material, and the printing ink for printing one of the front and back surfaces of the base material is an infrared transmission ink or an infrared reflection ink. It is a true / false discrimination printed matter.

  The invention according to claim 6 is that the printed pattern is printed with an infrared transmitting ink on at least a partial region of one surface of the base material, and the information pattern is formed by the through hole penetrating the base material and the printed pattern printed on the base material. Is formed, and an information pattern formed by a through hole formed so as to penetrate the other surface of the base material is concealed by a printed pattern made of infrared transmitting ink.

  In the invention according to claim 7, a printed pattern with an infrared transmitting ink is printed on at least a part of the front and back surfaces of the substrate, and the printed pattern on the surface of the substrate and the printed pattern on the substrate and the back surface of the substrate are penetrated. An authenticity determination printed matter characterized in that an information pattern is formed by a through-hole.

  The invention according to claim 8 is based on the invention according to claim 3 or 4, and the pattern formed by the through hole formed in the authenticity determination printed material is the first information pattern, and further, the through hole of the authenticity determination printed material is formed. This is a true / false discrimination printed matter having a second information pattern formed by a through hole in a base material portion other than the printed pattern printed for concealment.

  The invention according to claim 9 is the authenticity determination printed matter according to any one of claims 1 to 8, wherein the information pattern formed by the through hole has a position, size, shape and / or shape of the through hole. This is a true / false discrimination printed matter characterized in that information is formed by the number of pieces.

  A tenth aspect of the present invention is the authenticity printed matter according to any one of the second to ninth aspects, wherein the information pattern formed by the through hole in the printed matter is a machine-readable information pattern. This is a characteristic authenticity discrimination printed matter.

  The invention described in claim 11 is a true / false determining method for handling the true / false determining printed matter according to any one of claims 2 to 10, wherein one printed surface of the printed matter faces down and an infrared transmitting material or an infrared absorbing material is used. It is placed on a base material made of a functional material of material, irradiated with visible light or infrared light from the other printed surface of the printed matter, and checked for the presence or absence of an information pattern. is there.

  The invention described in claim 12 is a true / false determination method for handling the authenticity determination printed matter according to any one of claims 2 to 10, wherein the authenticity determination printed matter is irradiated with infrared rays, and the true infrared rays are irradiated by the irradiated infrared rays. An authenticity determination method characterized in that an information pattern formed by through holes formed on a false determination printed matter is read and the read information pattern is compared with a reference information pattern stored in advance.

  The invention described in claim 13 is a true / false determination system for handling the authenticity determination printed matter according to any one of claims 2 to 10, wherein the infrared irradiation device irradiates the authenticity determination printed matter with infrared rays, and irradiation Authenticity provided with means for reading the information pattern by the through-hole formed in the authenticity printed matter by the infrared ray and means for comparing the read information pattern with the reference information pattern stored in the storage unit in advance It is a discrimination system.

  According to the present invention, it is possible to enhance the authenticity discrimination effect of a printed matter by effectively using a perforation technique using a laser or the like and using it in combination with functional ink.

  Hereinafter, the authenticity determination printed matter, the authenticity determination method of the printed matter, and the authenticity determination system according to the embodiment of the present invention will be described.

Various substrates can be used as the substrate according to the present invention, and reflective substrates such as paper, PET, and plastics such as PVC are used.
The infrared absorbing ink as the functional ink according to the present invention may be an ink having a normal carbon black or the like as a pigment.
Further, as means for making a hole in the substrate or the like, laser drilling, needle drilling, or the like can be considered, but in this embodiment, description is made using a laser.
The information pattern of the present invention includes a symbol, a number, or a kind of printed material, which is unique information given to the authenticity discrimination printed material.

  FIG. 1 illustrates a basic configuration of the authenticity determination printed matter of the present invention. In the present invention, since information is formed as a pattern by drilling with a laser, information can be formed by changing the position, size, shape, and number of through-holes, which may make forgery more difficult. It becomes possible.

  As a first embodiment, an information pattern is formed by penetrating minute holes that are difficult to see with a laser in a substrate, and the front and back surfaces of the substrate are printed with printing ink in order to conceal the through holes. It is a printed matter with a pattern. Another method is to print with printing ink on one of the front and back surfaces of the substrate, and penetrate only the substrate with a laser from the unprinted substrate side at the location corresponding to the printed part. The printed pattern may be printed with printing ink so as to conceal the perforated hole on the other side not printed so that the ink can be confirmed from the side of the unprinted substrate. .

  FIG. 1 (a) is a cross-sectional view of the authenticity printed matter of the first embodiment. The base material 1 and the base material are penetrated by a laser or the like to form a perforated hole 2, and the perforated hole portion is concealed. As shown, the printed pattern is printed on the front and back surfaces with the printing ink 3. In the case of this form, both front and back surfaces are closed.

  As a second embodiment, an information pattern is formed by penetrating a fine perforation that is difficult to see with a laser in a base material, and in order to conceal one side of the through hole, It is a printed matter in which either side is printed with a printing pattern with printing ink. As another manufacturing method, either one of the front and back surfaces of the base material may be printed with printing ink, and then the base material portion may be penetrated with a laser so as not to penetrate the printed portion. .

  FIG. 1 (b) is a cross-sectional view of the authenticity printed matter of the second embodiment. The base material 1 and the base material are penetrated by a laser or the like to form a perforated hole 2, and the perforated hole portion is concealed. As shown, the printed pattern is printed with the printing ink 3 on either one of the front and back surfaces. In the case of this form, one side is an opening and an information pattern is applied.

  As a third form, a printed pattern is printed with printing ink on one of the front and back surfaces of the base material, the printed pattern and the base material are perforated with a laser, and then the base material is printed. A printed pattern is printed with printing ink on the other side that is not. Another method is to print a printed pattern with printing ink on the front and back sides of the substrate, and then penetrate the other printed part and the substrate part with a laser so as not to penetrate the printed pattern on either side. And may be perforated.

  FIG. 1C is a cross-sectional view of the authenticity printed matter of the third embodiment, and a printing pattern is printed with the printing ink 3 on either the base material 1 or the front and back surfaces of the base material. Then, the printed pattern and the base material are penetrated with a laser or the like to form the perforated hole 2, and then the printed surface is printed with the printing ink 3 on the other surface on which the base material is not printed. In the case of this form, one side is an opening and an information pattern is applied.

  As a 4th form, a printing pattern is printed with printing ink on the front and back of a base material, and the printing pattern of a surface, the printing pattern of a base material, and a back surface is penetrated with a laser, and it perforates.

  FIG.1 (d) is sectional drawing of the authenticity determination printed matter of 4th Embodiment, printing a printing pattern with the printing ink 3 on the base material 1 and the front and back of the base material, and the printing pattern on the surface The printed pattern on the substrate and the back surface is penetrated with a laser or the like to form the perforated hole 2. In the case of this form, both the front and back surfaces are openings and an information pattern is applied.

  When the authenticity determination printed matter of the first to fourth embodiments is observed with visible light from the front (upper) surface, the printed matter of FIG. 1 (a) is perforated as shown in FIGS. 2 (a) to (d). The hole 2 cannot be confirmed, and in the case of the printed matter (b), the printing ink 3 on the back surface can be seen through the perforated hole 2. In the case of the printed matter (c), the printing ink 3 on the back side can be seen through the perforated hole 2, but it is difficult to distinguish when the front and back inks are the same color. In the case of the printed matter (d), the penetrated hole 2 can be confirmed. This can be easily observed by using transmitted light.

  As a 5th form, the authenticity determination printed matter of the 1st-3rd embodiment was made into the printed matter which concealed the perforated part of the base material with the infrared rays transmission type ink, and it mounted in the infrared rays absorption board or the infrared rays reflection board. Is in state. In this way, when the printed material is observed with visible light and infrared light, the hole of the information pattern observed when only the printed material is a hole concealed by drilling and printing, or a pseudo-perforated portion. Is effective as a means for determining authenticity.

  3A to 3C are cross-sectional views of the authenticity determination printed matter according to the fifth embodiment. FIG. 3A is the first embodiment, and FIG. 3B is the second embodiment. The embodiment, FIG. 3 (c) is a genuine / identified printed matter of the third embodiment, and shows a state in which the printed matter of the first to third embodiments is placed on the infrared absorbing plate or the infrared reflecting plate 4. .

When the printed material of the fifth embodiment is observed with visible light from the front (upper) surface, as shown in (a) to (c) of FIG. 4, in the case of the printed material of FIG. 2 cannot be confirmed, and in the case of the printed matter of FIGS. 3B and 3C, the perforated hole 2 where the printing ink 3 on the back surface can be seen can be confirmed.
Next, when placed on the infrared absorbing plate 4 and observed with infrared rays from the front (upper) surface, as shown in FIGS. 5 (a) to 5 (c), the printed matter of FIGS. 3 (a) to 3 (c). Can confirm the perforated hole 2 where the infrared absorbing plate 4 can be seen.
Further, when the infrared absorbing plate is replaced with the infrared reflecting plate 4 and observed with infrared rays from the front (upper) surface, as shown in FIGS. 6 (a) to 6 (c), the printed matter shown in FIGS. 3 (a) to 3 (c). The infrared reflector 4 can be seen through the perforated hole 2, but it is difficult to discriminate because it is confirmed to be white and bright.

  Further, in the configuration of the printed matter of the present embodiment, the applied perforated portion may or may not be filled with printing ink to be printed.

  As the authenticity determination method for the authenticity determination printed matter of the present invention, the authenticity determination is made more reliable by observing using both visible light and infrared light. For example, when mechanically reading a printed matter having a perforated hole concealed with functional ink, it is determined whether the hole is simply perforated by the presence or absence of light transmission in visible light, and an infrared absorbing plate or Whether the functional ink that conceals the holes by placing the printed material on the infrared reflector is an infrared transmission type or an absorption type on one or both sides, and the observed information pattern It is possible to determine whether or not is a hole drilled in the base material.

  FIG. 7 to FIG. 14 show examples of the authenticity determination printed matter to which information patterns are given as examples in the first to fifth embodiments. As the ink to be printed on the substrate, an infrared absorbing ink and an infrared transmitting ink, which are functional inks effective for machine reading as a means for determining authenticity, were used.

  The present invention is not limited to this embodiment, and the combination of the perforation location and the printing order applied to the base material, the type of ink used for printing, and the information providing method (pattern formation by perforated holes) are combined. Various forms are conceivable. In addition, as the true / false discrimination, it can be effectively performed by concealing and observing the hole, making it difficult to forge without concealing the hole and observing it, reading information and checking the information, It is a technique that gives valuable techniques to valuable printed matter and the like for ticket type discrimination, counterfeit prevention, or authenticity discrimination.

(Example 1)
FIG. 7 shows a true / false discrimination printed matter according to Example 1 having the configuration shown in FIG. 1A and using a functional ink as the printing ink. The authenticity discrimination printed matter produced by printing the surface of the base material 1 with the infrared transmitting ink 5 and the back surface with the infrared absorbing ink 6 is shown.

FIG. 7A is a cross-sectional view of the authenticity discrimination printed material, and the infrared transmitting ink 5 on the front surface and the infrared absorbing ink 6 on the back surface are printed using the same black color. FIG. 7B shows a state where the authenticity determination printed material is observed from the front and back surfaces. In the case of this printed matter, when observed with visible light, the perforated hole 2 cannot be confirmed from either FIG. 7B on the front side or FIG. 7B on the back side.
In the case of observation with infrared rays, the infrared transmission ink 5 on the front surface is transmitted through the observation from the front surface, and the infrared absorption ink 6 on the back surface through the perforation holes 2 is observed as a black perforation pattern 7 (FIG. 7B). C). In addition, in the observation from the back surface, the infrared absorbing ink 6 on the back surface is observed as black, and the perforated hole 2 cannot be confirmed (FIG. 7B).

(Example 2)
FIG. 8 shows an authenticity determination printed material according to Example 2 in which the functional ink is used as the printing ink in the configuration of FIG. This is a genuineness discrimination printed matter produced by printing the front and back surfaces of the substrate 1 with the infrared transmitting ink 5, and shows a state in which this printed matter is placed on the infrared absorbing plate 10 or the infrared reflecting plate 11.

FIG. 8A is a cross-sectional view of a state in which the authenticity determination printed matter is placed on the infrared absorbing plate (black) 10, and FIG. 8A is a state in which the printed matter is placed on the infrared reflecting plate (white) 11. FIG. FIGS. 8B and 8B show a state in which the authenticity printed matter is observed from the front (upper) surface. In the case of this printed matter, when it is observed with visible light in the state of (a) and (a ′), it is not possible to confirm the perforated hole 2 (FIG. 8B, FIG. 8B ′). ).
When observed with infrared rays, in the state of (b), when the printed matter is placed on the infrared absorbing plate 10 and observed, the infrared transmissive ink 5 on the front and rear surfaces is transmitted as shown in FIG. 2 is observed as a black perforated pattern 8. In the state (b ′), when the printed matter is placed on the infrared reflecting plate 11 and observed, the infrared transmitting ink 5 on the front and back surfaces is transmitted as shown in FIG. Since the infrared reflecting plate 11 that has passed through is also white, the perforation pattern 9 is not observed.

(Example 3)
FIG. 9 shows a true / false discrimination printed matter according to Example 3 having the configuration shown in FIG. 1B and the printing ink using functional ink. The authenticity discrimination printed matter produced by printing the back surface of the base material 1 with the infrared absorbing ink 6 is shown.

FIG. 9A is a cross-sectional view of the authenticity discrimination printed material. The base material 1 and the base material are penetrated by a laser or the like to form a perforated hole 2, and black infrared rays are formed only on the back surface so as to conceal the perforated part. The printed image line is printed with the absorbing ink 6, and is a printed matter in which the perforation pattern by the infrared absorbing ink 6 on the back surface can be observed through the perforated hole 2 from the non-printed surface. As another method for producing the authenticity determination printed matter of this embodiment, the back surface side of the base material 1 may be printed, and only the base material 1 may be punched from the front surface at the portion corresponding to the printed image line.
FIG. 9B shows a state where the authenticity determination printed material is observed from the front and back surfaces. In the case of this printed matter, when observed with visible light, the infrared absorbing ink 6 on the back surface is observed as a black perforated pattern 12 through the perforated holes 2 from the front (upper) surface (FIG. 9B). A perforated hole cannot be confirmed from the back side (FIG. 9 (b) b).
When observed with infrared rays, the infrared absorbing ink 6 on the back surface is observed as a black perforated pattern 13 from the front surface through the perforated holes 2 (FIG. 9B). The perforated hole cannot be confirmed from the back surface (FIG. 9 (b) D).

Example 4
FIG. 10 is a true / false discrimination printed matter related to Example 4 having the same configuration as that of FIG. 9 and using the infrared transmitting ink 5 of functional ink for printing on the back surface. A state in which the printed matter is placed on the infrared absorbing plate 10 or the infrared reflecting plate 11 is shown.

FIG. 10A is a cross-sectional view of a state in which the printed material for authenticity determination is placed on the infrared absorbing plate (black) 10, and FIG. 10A is a state in which the printed matter is placed on the infrared reflecting plate (white) 11. FIG. FIGS. 10B and 10B show a state in which the authenticity printed matter is observed from the front (upper) surface.
In the case of this printed matter, when observed with visible light in a state where the infrared absorbing plate 10 or the infrared reflecting plate 11 is not provided, no perforation can be seen from the printed surface on the back side, but an infrared absorbing plate or an infrared reflecting plate is provided. When observed with visible light in the states (a) and (a ′), the infrared transmitting ink 5 can be confirmed as black perforated patterns 14 and 15 through the perforated holes 2, respectively.
In the observation by infrared rays, when the infrared ray absorbing plate (black) 10 is placed on the back side, it can be observed as a black perforation pattern 16 through the perforation holes 2 (FIG. 10 (b) b). Further, when the infrared reflecting plate (white) 11 is placed on the back surface side, the infrared transmitting ink 5 on the back surface is transmitted through the perforation hole 2, but the perforation pattern 17 is not observed because the infrared reflecting plate 11 is also white (FIG. 10). (B ′) b).

(Example 5)
FIG. 11 shows an authenticity printed matter according to Example 5 in which the functional ink is used as the printing ink in the configuration shown in FIG. This is a genuineness discrimination printed matter produced by printing the front and back surfaces of the substrate 1 with the infrared transmitting ink 5, and shows a state in which this printed matter is placed on the infrared absorbing plate 10 or the infrared reflecting plate 11.

FIG. 11A is a cross-sectional view of a state in which the authenticity determination printed matter is placed on the infrared absorbing plate (black) 10, and FIG. 11A is a state in which the printed matter is placed on the infrared reflecting plate (white) 11. FIG. FIGS. 11B and 11B show a state where the authenticity determination printed matter is observed from the surface.
In the case of this printed matter, in the observation with visible light, there is perforation on the printed surface on the front (upper) surface, but it is hardly observed with the ink on the back surface (FIG. 11 (b) and FIG. 11 (b ′)). ).
In the observation by infrared rays, when an infrared absorbing plate (black) 10 is placed on the back side, it can be observed as a black perforation pattern 20 through the perforation holes 2 (FIG. 11 (b) b), and infrared reflection on the back side. When the plate (white) 11 is placed, it cannot be observed as a black perforated pattern 21 through the perforated holes 2 (FIG. 11 (b ′) b).

(Example 6)
FIG. 12 shows an authenticity determination printed material according to Example 6 in which the infrared ray transmitting ink 5 of the functional ink is used for printing on the front and back surfaces of the substrate 1 in the configuration of FIG. A state in which the printed matter is placed on the infrared absorbing plate 10 or the infrared reflecting plate 11 is shown.

12A is a cross-sectional view of a state in which the authenticity determination printed matter is placed on the infrared absorbing plate (black) 10, and FIG. 12A is a state in which the printed matter is placed on the infrared reflecting plate (white) 11. FIG. FIGS. 12B and 12B show a state in which the authenticity determination printed matter is observed from the front (upper) surface. In the case of this printed matter, in the observation of visible light from the surface in a state where the infrared absorbing plate 10 or the infrared reflecting plate 11 is not provided, it is possible to observe a state where the perforations penetrate the printed matter.
When placed on the infrared absorbing plate (black) 10, perforation exists when observed with visible light, but the perforation pattern 22 is hardly observed by the infrared absorbing plate (black) 10 (FIG. 12B). I). When placed on the infrared reflector (white) 11 on the back side, a white perforated pattern 23 is observed (FIG. 12 (b ′) b).
In the observation by infrared rays, when the infrared absorbing plate (black) 10 is placed on the back side, it is observed as a black perforated pattern 24 through the perforated holes 2 (FIG. 12 (b) b), and the infrared reflecting plate (white) on the back side. ) 11 is placed, the drilling pattern 25 cannot be observed through the drilling hole 2 (FIG. 12 (b ′) b).

(Example 7)
In FIG. 13, the base material 1 having the configuration of FIG. 8 is penetrated with a laser to form a perforated hole 2 (first pattern), and the front and back surfaces are printed with the infrared transmitting ink 5 so as to conceal the perforated part. The authenticity discrimination printed matter according to Example 7 in which the second pattern is formed by forming a perforated hole 2 'by penetrating the base material portion other than the printing area of the printed matter with a laser in the authenticity discrimination printed matter. The state which mounted this printed matter on the infrared rays absorption board 10 or the infrared rays reflection board 11 is shown.

FIG. 13A is a cross-sectional view of a state in which the authenticity printed matter is placed on the infrared absorbing plate (black) 10, and FIG. 13A is a state in which the printed matter is placed on the infrared reflecting plate (white) 11. FIG. FIGS. 13B and 13B show a state where the authenticity determination printed matter is observed from the surface.
The first pattern is observed as described with reference to FIG. 8 (FIGS. 13B and 13B ′).
Since the second pattern formed by the perforated holes 2 ′ formed in the substrate 1 is a through-opened state, when observed with visible light, the black perforated pattern 26 (on the back side infrared absorbing plate (black) 10) ( In FIG. 13B, it is possible to observe the white perforated pattern 27 (FIG. 13B ′) b of the infrared reflecting plate (white) 11 on the back surface side.
In the observation with infrared rays, the color of the infrared absorbing plate (black) 10 on the back side can be observed as a black perforated pattern 28 through the perforated holes 2 ′ (FIG. 13 (b) b), and the infrared reflection on the back side. The color of the plate white) 11 cannot observe the drilling pattern 30 through the drilling hole 2 ′ (FIG. 13 (b ′) b).

(Example 8)
FIG. 14 shows that the substrate 1 having the structure shown in FIG. 7 is penetrated with a laser to form a perforated hole 2 (first pattern), and the surface is covered with infrared transmitting ink 5 and the rear surface is hidden so as to conceal the perforated part. The configuration of the authenticity discrimination printed matter printed with the infrared absorbing ink 6 was further penetrated by using a laser to the base material portion other than the printed pattern of the printed matter to form the perforated hole 2 ′, and the second pattern was formed. This is a true / false discrimination printed matter according to Example 8. A state in which the printed matter is placed on the infrared absorbing plate 10 or the infrared reflecting plate 11 is shown.

FIG. 14A is a cross-sectional view of a state in which the printed material for authenticity determination is placed on the infrared absorbing plate (black) 10, and FIG. 14A is a state in which the printed matter is placed on the infrared reflecting plate (white) 11. FIG. 14B and 14B show a state in which the authenticity printed matter is observed from the front (upper) surface.
The first pattern is observed as described in FIG.
Since the second pattern formed by the perforated holes 2 ′ formed in the base material 1 is an open state, the perforated pattern 32 (from the infrared absorbing plate (black) 10 on the back side is observed when observed with visible light. It is possible to observe the perforation pattern 33 (FIG. 14 (b ′) b) from FIG. 14 (b) b) and the infrared reflector reflecting plate (white) 11.
In observation by infrared rays, when an infrared absorbing plate (black) 10 is placed on the back side, it can be observed as a black perforated pattern 34 through the perforated holes 2 (FIG. 14 (b) b), and infrared reflection on the back side. When the plate (white) 11 is placed, it cannot be observed as a black perforation pattern 36 through the perforation holes 2 (FIG. 14 (b ′) b).

  As described in detail above, by using the authenticity printed matter and the production method, the printing ink is a functional ink such as an infrared transmitting ink and an infrared absorbing ink, and the method for observing the functional ink is used. The information pattern by the perforation concealed in the ink can be obtained by observing the ink on the back side through the perforated hole and the perforated hole. As a result, it is possible to distinguish whether a hole is formed in the base material or a hole hidden with ink.

  In addition, prints that combine normal perforations (perforate through the base material and the top and bottom of the base material have openings) and perforations concealed with ink can be used as infrared transmission plates and infrared absorption plates. By observing with infrared rays after placing on a conductive material and adding observation with ordinary visible light, the difference in the appearance of the information pattern due to the difference in the observation method occurs, so double counterfeiting is avoided It becomes possible to distinguish counterfeiting using other methods and materials.

  In addition, by changing the position, size, shape, number, etc. of the perforations, it is possible to make a pattern with information specific to the printed matter or the type of printed matter as information. By creating a database of reference patterns in advance, when observing the printed material, the information pattern such as symbols and numbers, which are unique to the printed material, is compared with the reference pattern. A true / false discrimination system capable of discrimination can be provided. In addition, it is possible to prevent the distribution of forged items by constructing a true / false discrimination system that makes it possible to easily obtain information such as the presence / absence of the same number, symbol, or nonexistent number when authenticating. be able to.

It is a figure which shows the basic composition of the authenticity determination printed matter of this invention. It is the figure which observed the authenticity determination printed matter of the 1st-4th embodiment from the front (upper) surface with visible light. It is a figure which shows the state which mounted the authenticity determination printed matter of the 1st-3rd embodiment on the infrared rays absorption board or the infrared rays reflection board. It is the figure which observed the authenticity determination printed matter of the 1st-3rd embodiment with visible light from the surface (upper) surface. It is the figure observed with the infrared rays in the state which mounted the authenticity determination printed matter of the 1st-3rd embodiment on the infrared rays absorption board. It is the figure observed with the infrared rays in the state which mounted the authenticity determination printed matter of the 1st-3rd embodiment on the infrared reflective plate. FIG. 3 is a diagram illustrating a configuration of a genuineness determination printed matter according to the first embodiment. 6 is a diagram illustrating a configuration of a genuineness determination printed material according to Embodiment 2. FIG. FIG. 10 is a diagram illustrating a configuration of a genuineness determination printed material according to a third embodiment. FIG. 10 is a diagram illustrating a configuration of a genuineness determination printed material according to a fourth embodiment. FIG. 10 is a diagram illustrating a configuration of a genuineness determination printed material according to a fifth embodiment. FIG. 10 is a diagram illustrating a configuration of a genuineness determination printed material according to a sixth embodiment. FIG. 10 is a diagram illustrating a configuration of a genuineness determination printed material according to a seventh embodiment. FIG. 10 is a diagram illustrating a configuration of a genuineness determination printed material according to an eighth embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Base material, such as paper 2 Perforated hole 2 '2nd perforated hole 3 Printing ink 4 Infrared absorbing plate or infrared reflecting plate 5 Infrared transmitting ink 6 Infrared absorbing ink 7, 8, 9 Perforated pattern observed with infrared rays 10 Infrared absorbing plate 11 Infrared reflectors 12, 14, 15, 18, 19, 22, 23, 26, 27, 32, 33 Perforated patterns observed with visible light 13, 16, 17, 20, 21, 24, 25, 28, 29, 30, 31, 34, 35, 36, 37 Perforation pattern observed with infrared rays

Claims (13)

A printed matter in which an information pattern is formed by a through hole in at least a partial region of the substrate, and the base is formed so as to conceal at least a part of the information pattern formed by the through hole from the front and back surfaces of the substrate. Printed material with a printable pattern printed with printing ink on the front and back of the material. The authenticity printed matter according to claim 1, wherein the printing ink for printing a printing pattern for concealing at least part of the information pattern is a functional ink. The authenticity discrimination printed matter according to claim 2, wherein the functional ink has one surface of the substrate made of infrared absorbing ink and the other surface made of infrared transmitting ink. The authenticity discrimination printed matter according to claim 2, wherein the functional ink is an infrared transmitting ink on the front and back surfaces of the base material. A printed matter in which an information pattern is formed by a through hole in at least a partial region of the substrate, and the base is formed so as to conceal at least a part of the information pattern formed by the through hole from the front and back surfaces of the substrate. A printing pattern with printing ink is printed on the front and back surfaces of the material, and the printing ink for printing the printing pattern on one of the front and back surfaces of the base material is infrared transmission ink or infrared reflection ink. False discrimination printed matter. A printed pattern is printed with an infrared transmitting ink on at least a partial region of one surface of the substrate, and an information pattern is formed by a through-hole penetrating the substrate and the printed pattern printed on the substrate. An authenticity discrimination printed matter characterized in that an information pattern by a through hole formed through the other surface of the material is concealed by a print pattern of infrared transmitting ink. On the front and back surfaces of the base material, a printed pattern is printed at least in a partial area with infrared transmissive ink. Authenticity discrimination printed matter characterized in that a pattern is formed. The information pattern by the through-hole formed in the authenticity determination printed matter according to claim 3 or 4 is used as a first information pattern, and a printed pattern other than a printed pattern concealed through the through-hole of the authenticity determination printed matter Truth discrimination printed matter having a second information pattern formed by through-holes in the base material portion. The authenticity determination printed matter according to any one of claims 1 to 8, wherein the information pattern formed by the through-holes has information formed by the position, size, shape and / or number of the through-holes. True / false discrimination printed matter. The authenticity determination printed material according to claim 2, wherein the information pattern formed by the through-hole in the printed material is a machine-readable information pattern. The authenticity determination method for authenticity determination printed matter according to any one of claims 2 to 10, wherein the printed matter is formed of a functional material such as an infrared transmitting material or an infrared absorbing material with one printed surface of the printed matter facing down. A true / false discrimination method comprising placing on a substrate and irradiating visible light or infrared light from the other printed surface of the printed matter to confirm the presence or absence of the information pattern. The authenticity determination method for authenticity determination printed matter according to any one of claims 2 to 10, wherein the authenticity determination printed matter is irradiated with infrared rays, and is formed on the authenticity determination printed matter by the irradiated infrared rays. An authenticity determination method comprising: reading an information pattern by a through-hole, and comparing the read information pattern with a reference information pattern stored in advance. The authenticity determination system for authenticity determination printed matter according to any one of claims 2 to 10, wherein the authenticity determination printed matter is irradiated with means for irradiating the authenticity determination printed matter with infrared rays and the irradiated infrared rays. A true / false discrimination system comprising: means for reading an information pattern formed by the formed through hole; and means for comparing the read information pattern with a reference information pattern stored in advance in a storage unit.

Images