JP2006205500A - Number printing medium for which forgery preventing measure is taken - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a number printing medium which enables machine reading of number printing and judgment of authenticity thereof without using any special machine or the like and for which a forgery preventing measure making it hard to forge is taken, in regard to the number printing medium such as securities whereon an OCR number or the like is printed. <P>SOLUTION: Serial numbers 20 are printed with fluorescent ink and the numbers printed with the fluorescent ink comprise the number (20c) printed with short-wavelength fluorescent ink and the number (20d) printed with long-wavelength fluorescent ink. Thereby the number printing medium for which the forgery preventing measure enabling determination of authenticity by two black lamps is taken is prepared. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a number printing medium on which forgery prevention measures are taken. More specifically, an OCR number or the like employed for securities is printed, and it is difficult to forge the number printing. The present invention relates to a number printing medium on which a forgery prevention measure is applied.

  Conventionally, “number printing” used in securities such as gift certificates, cash vouchers, stock certificates, bonds, etc. is performed by letterpress printing using a printing machine having a numbering machine, and the ink used therefor is carbon It is a black ink for relief printing containing black (pigment), and the printed matter is known in which fine embossing marks peculiar to relief printing are generated (when the substrate is paper).

The machine reading of this “number printing” is OCR (Optical Character).
Reader) is generally used, and as a measure for preventing forgery of this “number printing”, a special reader is used, which uses an ink in which a magnetic material is dispersed in the above-described black ink containing carbon black (pigment). : Read by MICR (Magnetic Ink Character Reader), determine its authenticity, and perform machine processing.

  In addition, the printed character string of the number often includes a check digit for confirming the consistency of the number itself, and a plurality of number strings are included in one voucher or stock certificate. And the consistency of each can be confirmed.

  The number printed matter (medium) that has been subjected to number printing as described above is subjected to anti-counterfeiting measures (for example, pasting of hologram foil, pearl ink, micro characters, etc.) other than this number printing. It is extremely rare that “number printing” is the only anti-counterfeiting measure. However, this “number printing” is a powerful basis for authenticity because of its speciality when determining authenticity (genuine and fake).

  However, in the prior art related to number printing, copying (counterfeiting) of the number printing itself can be made relatively easily by using, for example, a scanner or the like, and a special ink for MICR containing a magnetic material. Even in the case of number printing using a printer, there is a problem that, for example, it can be reproduced (replicated) with a monochrome printer toner containing a magnetic material, and machine reading is also possible.

  The present invention solves the problems of the prior art, and the problem is that a special machine or the like is used in a number printing medium represented by securities, on which an OCR number or the like is printed. An object of the present invention is to provide a number printing medium on which a counterfeit prevention measure that can be machine-read and authenticate without using (using a conventional number printing machine) and that is difficult to forge is applied. .

In order to achieve the above-mentioned object in the present invention, first, in the invention of claim 1, securities which have paper as a base material, and a series of numbers in one to a plurality of rows are printed on the base material. In the number printing medium represented by the above, the number printing medium is provided with a forgery prevention measure characterized in that all or part of a series of numbers in the one row is printed with fluorescent ink It is.

  According to a second aspect of the present invention, the forgery prevention measure according to the first aspect is provided, wherein the PCS concentration of number printing printed with the fluorescent ink is 0.2 or less with the A filter. This is a number print medium.

  Moreover, in invention of Claim 3, the said fluorescent ink consists of two types of inks light-emitted in the wavelength range of short wavelength fluorescence and long wavelength fluorescence, The one of Claims 1 thru | or 2 characterized by the above-mentioned. This is a number print medium that has been forged.

  According to a fourth aspect of the present invention, the series of numbers are printed by a rainbow printing method in which the various inks are applied to a partition portion partitioned by a plurality of weirs on a single plate cylinder. The number printing medium is provided with a forgery prevention measure according to any one of items 1 to 3.

  According to a fifth aspect of the present invention, in a number printing medium represented by securities, on which a paper is used as a base material and a series of one or more rows of numbers are printed on the base material, at least the 1 It is a number printing medium with anti-counterfeit measures characterized in that a series of numbers in the row is composed of mixed-color black ink that transmits infrared rays and black ink containing carbon black that absorbs infrared rays. .

  The invention according to claim 6 is characterized in that the series of numbers are printed by a rainbow printing method in which the various inks are applied to a section portion partitioned by a plurality of weirs on one plate cylinder. This is a number print medium to which the forgery prevention measures described are applied.

The PCS density referred to in claim 2 is an abbreviation for Print Contrast Signal, and the contrast is represented by the relative reflectance of the number printed image line and the base material (printed material), and is a value calculated by the following equation. ,
PCS = (reflectance of substrate) − (reflectance of image line) / (reflectance of substrate)
It is represented by

  Since this invention is the above structure, there exist the following effects.

  That is, according to the first aspect of the present invention, in a number printing medium represented by securities, in which a paper is used as a base material and a series of one or more rows of numbers are printed on the base material. Since at least all or a part of the series of numbers in the one row is printed with fluorescent ink, it is difficult to see under visible light, but it is read with a dedicated ultraviolet irradiation device (black light). It is possible to make a number print medium with possible anti-counterfeit measures, and there are parts that are not visible under visible light for those who attempt forgery, so it is difficult to forge the number (OCR number etc.) of this number print medium It is to make.

  In addition, because the paper is used as a base material, fine embossed traces unique to the numbering device are generated in number printing that is difficult to visually recognize under visible light. It can also be a number print medium.

  Further, according to the invention according to claim 2, it is difficult to visually recognize the number print under visible light because the PCS concentration of the number print printed with the fluorescent ink is 0.2 or less with the A filter. Thus, it is possible to provide a number printing medium on which a forgery prevention measure is made to confuse a person who attempts to forge and make forgery more difficult.

  When the PCS density of number printing printed with the fluorescent ink exceeds 0.2 with the A filter, the presence and contents of number printing can be visually determined under visible light. This is not preferable because there is a concern that forgery using a similar fluorescent ink may be possible.

  Further, according to the invention according to claim 3, it is difficult to visually recognize the fluorescent ink under visible light by using two types of ink that emit light in the wavelength region of short wavelength fluorescence and long wavelength fluorescence. It is necessary to select whether the dedicated ultraviolet irradiation device (black light) that reads it emits short wavelength fluorescence or long wavelength fluorescence, and the number printed with this fluorescent ink is printed even with fluorescent ink. Even if it is noticed, the number printing medium with anti-counterfeiting measures that make counterfeiting more difficult will not be noticed by those who plan forgery because they do not notice the type of fluorescent ink and the type of black light. Can do.

  According to the invention according to claim 4, the series of numbers are printed by a rainbow printing method in which the various inks are applied to a partition portion partitioned by a plurality of weirs on one plate cylinder. , The adjacent inks, that is, the boundary number printed with fluorescent ink and colored ink or two types of fluorescent ink, is a mixture of both inks (fluorescent and colored, etc.) It is possible to provide a number print medium on which difficult counterfeit prevention measures are taken.

  Further, according to the invention according to claim 5, in a number printing medium represented by securities, in which a paper is used as a base material, and a series of one or more rows of numbers are printed on the base material. Since at least a series of numbers in one row is composed of mixed-color black ink that transmits infrared rays and carbon black-containing black ink that absorbs infrared rays, any number is visible as black under visible light. For those who try to counterfeit, this mechanism is not known, and if a series of numbers is forged with black ink containing carbon black, the whole series of numbers will be visible when this counterfeit is observed with a dedicated infrared monitor. Therefore, in the number that is composed of the mixed color black ink that transmits infrared rays and the black ink containing carbon black that absorbs infrared rays, the mixed color black ink portion is not visually recognized (observed). Since only a portion of the black ink of the carbon black contained is to be observed, it can be a number medium with the determination of authenticity easy anti-counterfeit measures have been subjected.

  Furthermore, according to the invention according to claim 6, the series of numbers absorbs the various inks in the partition portion partitioned by a plurality of weirs in one plate cylinder, that is, the mixed color black ink that transmits infrared rays and the infrared rays. By printing with the rainbow printing method that adds carbon black-containing black ink, the border number printed with the adjacent mixed-color black ink and carbon black-containing black ink becomes a mixture of both inks. Therefore, it is possible to obtain a number print medium on which a forgery prevention measure that is more difficult to reproduce by forgery is applied.

  Therefore, the present invention exhibits an excellent practical effect as a number printing medium on which a counterfeit prevention measure represented by securities such as gift certificates, cash vouchers, stock certificates, bonds, etc., on which a series of numbers are printed. Is.

  The best mode for carrying out the present invention will be described below in detail with reference to the drawings.

The present invention is represented by securities such as gift certificates in which a series of OCR numbers (20) are printed on a base material (10) made of securities paper or the like as shown in the plan view of FIG. The number printing medium (1) is a number printing medium (1) in which a series of OCR numbers (20) is subjected to anti-counterfeit measures.

  In the invention according to claim 1, for example, as shown in FIG. 2A, a series of OCR numbers (20) are configured with numbers (20 a) printed with fluorescent ink that is not visible under visible light. When the number printed on the number 20a printed with the fluorescent ink is irradiated with a reading device (black light) that emits ultraviolet light, for example, FIG. ), The number printing medium on which the forgery prevention measure is applied in which the number (20a) printed with the fluorescent ink emits fluorescence and becomes a readable OCR number (20) can be obtained.

  In the invention according to claim 1, for example, as shown in the plan view of FIG. 6, a series of OCR numbers (20) are configured in two upper and lower rows on a base material (10) made of securities paper or the like. The upper row “5678901234” is the number (20a) printed with fluorescent ink, and the lower row “12345567890” is the number (20b) printed with colored ink. The lower row number ( The number printing medium (1) on which a forgery prevention measure is applied with the last digit “0” of 20b) as a check digit (22) can also be used.

  Furthermore, in the invention according to claim 1, for example, as shown in FIG. 3A, a part “5” of the series of OCR numbers (20) is printed with fluorescent ink that is not visible under visible light. As the check digit (22), the other number “12345, 67890” can be a number printing medium with anti-counterfeit measures composed of the number (20b) printed with colored ink. .

  When the series of OCR numbers (20) is irradiated with a reading device (black light) that emits ultraviolet rays, for example, as shown in FIG. This is a number printing medium on which a forgery prevention measure is applied so that only “5”, which is a check digit (22) for confirming the validity of the OCR number (20), can be emitted and read.

  Further, in the invention according to claim 2, for example, the PCS concentration of the number (20a) printed with fluorescent ink that cannot be visually recognized under visible light as shown in FIG. This is a number print medium on which a forgery prevention measure is applied.

  When the PCS concentration of the number (20a) printed with the fluorescent ink exceeds 0.2, the presence and contents of a series of OCR numbers (20) become clear even under visible light. For example, similar fluorescent ink It is not preferable because there is a fear of being counterfeited.

  In the invention according to claim 3, for example, as shown in FIG. 4 (a), a series of OCR numbers (20) are printed with fluorescent ink that is not visible under visible light, and the fluorescent ink is The short wavelength fluorescent ink that emits light in the wavelength region around 254 nm and the long wavelength fluorescent ink that emits light in the wavelength region near 340 nm. In the former short wavelength fluorescent ink, the number (20c) of “12345” In the long wavelength fluorescent ink, the number printing medium on which the forgery prevention measure printed with the number “67890” (20d) is used.

  When the number (20c, 20d) made of two types of fluorescent inks that cannot be seen under visible light shown in FIG. 4A is irradiated with a short wavelength (around 254 nm) fluorescence reader (black light), for example, FIG. As shown in FIG. 4 (b), all (20c, 20d) of the series of OCR numbers (20) of “12345567890” emit fluorescent colors.

In addition, when the number (20c, 20d) made of two types of fluorescent ink that cannot be seen under visible light shown in FIG. 4 (a) is irradiated with a long wavelength (near 340 nm) fluorescence reader (black light), for example, As shown in FIG. 4C, the number “12345” printed with the short wavelength fluorescent ink does not emit light and the number “20890” printed with the long wavelength fluorescent ink does not emit “67890”. Emits a fluorescent color.

  By changing the type of the reading device (black light) in this way, the portion that emits the fluorescent color changes, so that the authenticity of the number printing medium can be easily facilitated, and as shown in FIG. Thus, it is possible to obtain a number printing medium on which a forgery prevention measure is made which is difficult to forge (reproduce) compared to the number (20a) made of one kind of fluorescent ink. In other words, even if a person who attempts to counterfeit notices that it is printed with fluorescent ink, it does not notice such “Karakuri”.

  Furthermore, in the invention according to the fourth aspect, for example, a series of OCR numbers (20) as shown in FIG. This is a number printing medium with a forgery prevention measure printed by a rainbow printing method with a long wavelength fluorescent ink.

  When the number (20c) “12345” made of the short wavelength fluorescent ink and the number (20d) “67890” made of the long wavelength fluorescent ink are printed by the rainbow printing method as described above, the number (“5”) that is the boundary between the two is printed. “6”) is a mixture of both inks. When this is irradiated with a long-wavelength fluorescent black light, for example, as shown in FIG. 4D, the number printed with the short-wavelength fluorescent ink ( "1234" in 20c) does not emit light, and "7890" in the number (20d) made of long-wavelength fluorescent ink emits a fluorescent color. The number ("" 5 ”and“ 6 ”) can emit a slight amount of fluorescent color, and the number printed with the anti-counterfeit measures that are more difficult to reproduce by forgery are printed with the rainbow printing method. It is possible to the body.

  Further, for example, a part of “5” in a series of OCR numbers (20) as shown in FIG. 3A is a check digit (22) printed with fluorescent ink that is not visible under visible light. No. “12345, 67890” is a number composed of colored ink (20b) printed with colored ink and printed with the rainbow printing method. And “6”) and the number “5” that is the check digit (22) are mixed with each other, and under visible light, “5” that is the check digit (22) is lightly colored. When irradiated with black light, for example, as shown in FIG. 3C, numbers (“5” and “6” in 20b) and check digits (22) printed with colored ink are used. Become number also "5" is possible to emit fluorescent colors just be a number print media reproduction by more counterfeit difficult anti-counterfeit measures have been subjected.

  Examples of fluorescent substances (pigments) that emit fluorescence at a short wavelength (around 254 nm) in the fluorescent ink include, for example, Zn2SiO4: Mn, Ca2B5O9Cl: Eu2 +, CawO4, ZnO: Zn, Y2O2S: Ag, YVO4: Eu, Gd2O2S: Tb, LaO2S: Tb, Y3Al5O12: Ce, and the like can be used, and these can be used alone or in combination.

  Moreover, as a fluorescent substance (pigment) that emits fluorescence at a long wavelength (near 340 nm) in the fluorescent ink, a resin solid solution of a fluorescent dye such as an aromatic heterocyclic derivative, and the resin includes polymethacrylate, Examples include urea / formalin resin, melamine / formalin resin, vinyl chloride, vinyl chloride / vinyl acetate copolymer, alkyd resin, and modified ones thereof.

  Examples of the fluorescent dye include dyes such as fluorescein, eosin, rhodamine B, rhodamine 6G, and thioflavine as aromatic heterocyclic derivatives, diaminostilbene disulfonic acid, imidazole, coumarin, triazole, carbazole, pyridine, naphthalic acid, imidazolone, and the like. And a compound having a benzene ring such as anthracene.

  In the invention according to claim 5, for example, as shown in FIG. 5A, “12345” in a series of OCR numbers (20) is yellow (Y) or cyan of process ink that transmits infrared rays. (C) is a number (20e) made of mixed-color black ink mixed with magenta (M), and “67890” is a number (20f) made of black ink containing carbon black that absorbs infrared rays. The number printed medium is applied.

  In the invention according to claim 5, for example, as shown in the plan view of FIG. 7, a series of OCR numbers (20) are configured in two upper and lower rows on a base material (10) made of securities paper or the like. In the upper row, “567891” of “5678901234” is a number (20e) made of mixed-color black ink mixed with yellow (Y), cyan (C), and magenta (M) of process ink that transmits infrared rays. , “01234” is a number (20f) made of black ink containing carbon black that absorbs infrared rays, and “12345567890” in the lower row is a number (20b) printed with colored ink. The number printing medium (1) on which a forgery prevention measure is applied with the last digit “0” of (20b) as a check digit (22) can also be used.

  When a series of OCR numbers (20) consisting of the number (20e) made of the mixed color black ink and the number (20f) made of black ink containing carbon black are observed with a dedicated reader (infrared monitor), FIG. As shown in (b), the portion “12345” of the number (20e) made of mixed-color black ink is not observed, and only “67890” of the number (20f) made of black ink containing carbon black is observed. It can be set as the number printing medium to which the forgery prevention measure is applied.

  As described above, it is visually recognized as a series of OCR numbers (20) exhibiting black under normal visible light. The authenticity determination of the series of OCR numbers (20) is performed by the above infrared monitor (infrared camera). Built-in) or a semiconductor laser that irradiates laser light having a wavelength of 750 nm, 780 nm, 810 nm, 830 nm, 905 nm, or the like and cuts light in the visible region.

  Furthermore, in the invention according to the sixth aspect, for example, the process inks Y and M in the partition portion partitioned by a weir with a series of OCR numbers (20) as shown in FIG. , C, and a number printing medium on which a forgery prevention measure is applied, which is printed by a rainbow printing method in which black ink containing carbon black and black ink containing carbon black are applied.

When the number (20e) “12345” made of mixed color black ink and the number (20f) “67890” made of black ink contained in carbon black are printed by the rainbow printing method as described above, the number (“5 ”And“ 6 ”) are a mixture of the two inks. When these are observed with an infrared monitor, for example, as shown in FIG. 5C, the number (20e) printed with the mixed color black ink is used. “1234” was not observed at all, and “7890” of the number (20f) made of black ink contained in carbon black was clearly observed to be observed, and both inks were mixed. Numbers ("5" and "6") can be slightly observed, and those printed by the rainbow printing method are more difficult to reproduce by forgery. Can be a number print media anti-counterfeit measures have been subjected.

  The number printing medium (1) to which the counterfeit prevention measures of the present invention as described above are applied can be suitably employed for securities such as gift certificates, gift certificates, cash vouchers, stock certificates, bonds.

It is a top view which shows one Embodiment of the number printing medium in which the forgery prevention measure of this invention was given. FIG. 2 shows an example of number printing on a number printing medium to which the anti-counterfeit measures of the present invention are applied, (a) is printed with fluorescent ink and observed under visible light, (b) The form when irradiated with black light is shown. 1 shows an embodiment of a number printing medium to which a forgery prevention measure of the present invention is applied, wherein (a) is a part of a series of numbers printed with fluorescent ink, (b) (A) is a figure which shows a form when it irradiates with a black light, (c) is a figure which shows a form when it irradiates with the black light to what rainbow-printed (a). The embodiment of the number printing medium to which the anti-counterfeit measures of the present invention are applied is shown, (a) is a diagram in which numbers printed with two types of fluorescent ink are observed under visible light, ( (b) is a figure which shows a state when (a) is irradiated with the black light which emits short wavelength fluorescence, (c) is a figure when (a) is irradiated with the black light which emits long wavelength fluorescence. (D) is a figure which shows a state when (a) at the time of rainbow printing is irradiated with the black light which emits long wavelength fluorescence. The embodiment of the number printing medium to which the forgery prevention measure of the present invention is applied is shown, (a) is a diagram in which numbers printed with two types of black ink are observed under visible light, ( b) is a diagram showing a state when (a) is observed with an infrared monitor, and (c) is a diagram showing a state when (a) is observed with an infrared monitor when rainbow printing is performed. is there. It is a top view explaining other embodiment of the number printing medium in which the forgery prevention measure of this invention was given. It is a top view explaining other embodiment of the number printing medium in which the forgery prevention measure of this invention was given.

Explanation of symbols

1. Number printing medium with anti-counterfeit measures 10 ... Base material 20 ... OCR number 20a ... Number 20b printed with fluorescent ink ... Number 20c printed with colored ink ... Short wavelength fluorescent ink No. 20d printed with No. 20e printed with long-wavelength fluorescent ink No. 20f printed with mixed-color black ink No. 22 printed with black ink containing carbon black 22 Check digit

Claims (6)

  A number printing medium represented by securities, wherein paper is used as a base material and a series of one or more rows of numbers are printed on the base material, and at least all of the series of numbers in the one row Alternatively, a number printing medium on which a forgery prevention measure is applied, characterized in that a part is printed with fluorescent ink.   2. The number printing medium on which a forgery prevention measure is applied according to claim 1, wherein the PCS concentration of number printing printed with the fluorescent ink is 0.2 or less with an A filter.   3. The number printing with anti-counterfeit measures according to claim 1, wherein the fluorescent ink comprises two types of inks that emit light in a wavelength region of short-wavelength fluorescence and long-wavelength fluorescence. Medium.   4. The printing apparatus according to claim 1, wherein the series of numbers is printed by a rainbow printing method in which the various inks are applied to a section divided by a plurality of weirs on one plate cylinder. 5. Number print media with anti-counterfeit measures.   In a number printing medium represented by securities, in which a series of numbers in one to a plurality of rows is printed on a base material of paper, at least the series of numbers in the first row transmit infrared rays. A numbered printing medium with anti-counterfeiting measures, characterized in that it is composed of a mixed color black ink and a black ink containing carbon black that absorbs infrared rays.   5. The counterfeit prevention measure according to claim 4, wherein the series of numbers are printed by a rainbow printing method in which the various inks are applied to a partition portion partitioned by a plurality of weirs on one plate cylinder. Number print media.

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