JPH11334194A - Printed matter confirming implement and method for confirming - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a printed matter having a concealing pattern without identifying the pattern by preventing a forgery. SOLUTION: In the printed matter, a concealing pattern print layer 16 and a camouflage print layer 17 are lap printed on a base material 15 such as a film or the like. Even if the printed matter is visually observed, the layer 16 cannot be identified according to a camouflage character of the layer 17. When the confirming implement is placed on the printed matter, a moire pattern is generated. Even when the implement is placed on a copy of the matter, the moire pattern is not generated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001] The present invention relates to a printed matter, a confirmation tool, and a confirmation method.

[0002]

2. Description of the Related Art Conventionally, in order to suppress counterfeit products obtained by copying a cash voucher or the like with a copying machine, an area constituted by halftone dots having a size exceeding the resolution of the copying machine is provided in a printed matter. A copy check method has been used in which a forgery can be identified by using a computer. However, due to technological advances in color copiers,
As the resolution of a color copying machine increases, it is difficult to sufficiently increase the copy checking effect in a system using large halftone dots exceeding the resolution of the copying machine.

[0003] Therefore, the present applicant creates a printed matter in which a hidden pattern is printed using a linear pattern, and in the case of a copy of the printed matter, the hidden pattern does not appear even if a transparent confirmation tool is put on the printed matter. A patent (Japanese Patent Application No. 8-2577961) relating to a method of discriminating a copy to be distinguished has already been filed.

[0004]

However, if the hidden pattern is provided on a blank sheet of paper without any pattern, or is provided on a portion where the pattern does not change much, it is necessary to pay attention to the hidden pattern. Sometimes it turned out to be.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a printed matter, a checking tool, and a checking method which can prevent forgery and do not know that a hidden pattern is contained. Is to do.

[0006]

Means for Solving the Problems In order to achieve the above-mentioned object, a first invention is to provide a hidden pattern printing layer on a substrate and further provide a camouflage printing layer, or , A camouflage printing layer and a hidden pattern printing layer. A second invention is a confirmation tool having a pattern that interferes with a hidden pattern print layer of a printed matter. A third invention is a confirmation method characterized by superimposing a printed matter and a checking tool, and confirming that the printed matter is an original printed matter based on the presence or absence of a moiré pattern.

[0007]

Embodiments of the present invention will be described below. FIG. 1 is an explanatory diagram of the principle of the present embodiment. When the printed matter 1 is viewed by itself, a camouflage pattern is displayed, and it is not known that there is a hidden pattern. When the checking tool 3 is placed on the printed material 1, a moire pattern is generated. Further, even if the confirmation tool 3 is placed on the copy in place of the print 1, no moiré pattern occurs. in this way,
Whether or not the printed matter is an original printed matter or a copied matter is confirmed based on the presence or absence of a moire pattern.

FIG. 2 is a plan view of the print 1. The printed matter 1 has the camouflage character 31 and the confirmation area 5 printed thereon, but even if it is visually observed, the camouflage character 31 (“DNP”) does not indicate that the confirmation area 5 exists.

FIG. 3 shows a cross section of the printed material 1 cut along the line AA in FIG. The printed matter 1 is obtained by printing a hidden pattern printing layer 16 on a base material 15 such as a film, and further printing a camouflage printing layer 17 thereon.

Here, as the camouflage pattern, various patterns such as a regularly repeated pattern and an irregular pattern can be used. FIG. 4 shows a printed matter 1 on which a regularly repeated regular pattern is printed.
FIG. 5 shows a printed matter 1 on which an irregular pattern is printed.

Since the camouflage pattern blocks the hidden pattern printing layer 16 instead of obstructing the visual appearance, the camouflage pattern also reduces the effect of confirming the moire pattern using the confirming tool 3, that is, reduces the moiré effect. Become.

Therefore, if the camouflage effect is prioritized, the occupied area ratio of the camouflage pattern may be increased, and if the confirmation effect is prioritized, the occupied area ratio may be reduced. Specifically, the occupied area ratio is at most 90% or less,
Preferably, the occupied area ratio is 50% or less.

Here, the occupied area ratio is, for example, a ratio occupied by a camouflage pattern per 1 cm 2 of the printed matter 1.

The color for printing the camouflage pattern is not limited. However, if the camouflage effect is prioritized, a dark color such as black or navy blue (a color having a low reflection dark color) may be used. It is desirable to use a light color (a color having a high reflection density) that has been lightened.

Preferably, considering the design balance with the hidden pattern printed on the hidden pattern printing layer 16 and the overall effect, the same color as the hidden pattern printing layer 16 or a similar color thinned with a medium or the like. It is desirable to print with.

FIG. 6 is an enlarged view of the confirmation area 5 of the hidden pattern printing layer 16 of FIG. The confirmation area 5 has a confirmation pattern part 7, a pattern border part 9, and a background area 11.
Since the confirmation area 5 is composed of halftone dots or lines having the same halftone density, it is difficult to understand that there is a hidden pattern. Furthermore, since the camouflage printing layer 17 overlaps the hidden pattern printing layer 16, it is difficult to visually identify the confirmation area 5.

FIG. 7 is an enlarged view of the area 13 in the confirmation area 5. The confirmation pattern portion 7 has a regular pattern in which white and black stripes of 100 μm are equally spaced at an interval of 45 degrees to the right. The pattern bordering portion 9 is provided around the confirmation pattern portion 7 and has a pattern shifted from the pattern of the confirmation pattern portion 7 by a half cycle.

The background area 11 has a color and density that cannot be visually determined with respect to the check pattern section 7 and the pattern border section 9 and is the same as or arbitrary to the pattern of the check pattern section 7 or the pattern border section 9. Having the following pattern. When the confirmation tool 3 is placed on the printed material 1, the character A can be seen, but it is difficult to recognize the character A even when the printed material 1 itself is viewed with the naked eye.

FIG. 8 is an enlarged view of a confirmation area 21 having a pattern similar to that of the confirmation area 5 of FIG. The confirmation area 21 has a confirmation pattern part 25, a pattern border part 27, and a background area 29.

Here, the confirmation pattern section 25 has a regular pattern in which white and black 100-μm equally-spaced stripes are raised 45 degrees to the right. The pattern border portion 27 is provided around the confirmation pattern portion 25 and has a pattern that is shifted from the pattern of the confirmation pattern portion 25 by a half cycle. The pattern rim 27 is desirably provided in consideration of the sharpness of the moiré pattern when the checking tool 3 is placed, but need not be attached.

The background region 29 has substantially the same density as the confirmation pattern portion 25 and the pattern border portion 27. Here, a stripe rising 45 degrees to the left is used, but the angle and color of the stripe can be freely determined.

FIG. 9 is an enlarged view of the checking tool 3. The confirmation tool 3 is made of a film or the like that transmits light, and the confirmation tool 3 is configured by a stripe similar to the stripe of the confirmation pattern section 25.
7 and does not interfere with the background area 29.

FIG. 10 is an explanatory view in the case where the checking tool 3 is placed on the checking area 21. The checking pattern portion 25 interferes with the stripe of the checking tool 3 and becomes completely black. Also,
The pattern border 27 interferes with the stripe of the checking tool 3 and becomes lighter gray than the background area 29. Since the background area 29 does not interfere with the checking tool 3, the gray level does not change. Therefore, a black moiré pattern with a white border appears. In the case of FIG. 7, a black letter A with a white border appears.

FIG. 11 is an explanatory view showing a case where the checking tool 3 is placed on the checking area 21 with a half cycle shift from the case of FIG. Interference, resulting in a lighter gray than the background area 29. Further, the pattern rim portion 27 interferes with the stripe of the checking tool 3 and becomes completely black. Since the background area 29 does not interfere with the checking tool 3, the gray level does not change. Accordingly, a white moiré pattern with a black border appears. In the case of FIG. 7, a white character A with a black border appears.

In this embodiment, a line is used for the checking tool 3 and the hidden pattern printing layer 16, but a halftone dot of one color may be used. Further, the present invention can be used for cash vouchers, commuter passes, betting tickets, boat tickets, other sheets, printed matter for toys, and the like. In a voucher or the like, for example, a voucher pattern, a hidden pattern, and a camouflage pattern are printed on paper serving as a base material.

Next, a second embodiment will be described.
FIG. 12 is a sectional view of a printed matter 51 according to the second embodiment. FIG. 12 shows a cross section of the printed matter 51 cut along the line AA in FIG. 2 as in FIG. The printed matter 51 is obtained by printing the camouflage printing layer 17 on the base material 15 and further printing the hidden pattern printing layer 16 thereon. In the printed matter 51 according to the second embodiment, the arrangement of the printed matter 1 according to the first embodiment, the camouflage printing layer 17 and the hidden pattern printing layer 16 are reversed.

Also in the second embodiment, similar to the first embodiment, when the printed matter 51 is viewed by itself, a camouflage pattern is displayed, and it is not known that there is a hidden pattern. When the checking tool 3 is placed on the printed material 51, a moire pattern is generated. In addition, even if the confirmation tool 3 is placed on the copy instead of the printed matter 51, no moiré pattern occurs. As described above, whether or not a moiré pattern has occurred can be checked by a simple method whether it is an original printed matter or a copied matter.

[0028]

As described above, according to the present invention,
It is possible to provide a printed material, a checking tool, and a checking method that can prevent forgery and do not know that a hidden pattern is included.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of the principle of the present embodiment.

FIG. 2 is a plan view of a printed matter 1;

FIG. 3 is a cross-sectional view of a printed material 1.

FIG. 4 is a view showing a printed matter 1 on which a regular pattern is printed.

FIG. 5 is a view showing a printed matter 1 on which an irregular pattern is printed.

FIG. 6 is an enlarged view of a confirmation area 5 of the hidden pattern printing layer 16 of FIG.

FIG. 7 is an enlarged view of an area 13 in a confirmation area 5;

FIG. 8 is an enlarged view of a confirmation area 21 having a pattern similar to that of the confirmation area 5 of FIG.

FIG. 9 is an enlarged view of the checking tool 3;

FIG. 10 is an explanatory diagram when a check tool 3 is placed on a check area 21;

FIG. 11 shows a check area 2 shifted by a half cycle from the case of FIG.
Explanatory drawing when the check tool 3 is placed on 1

FIG. 12 is a sectional view of a printed matter 51 according to the second embodiment.

[Explanation of symbols]

 1, 51 Printed matter 3 Confirmation tool 5, 21 Confirmation area 7, 25 Confirmation pattern section 9, 27 Pattern border section 11, 29 Background area 15 Base material 15 Base material 16 Hidden pattern printing layer 17 Camouflage printing layer 31 Characters for camouflage

Claims (8)

[Claims] 1. A hidden pattern printing layer is provided on a base material,
Printed matter characterized by further providing a camouflage printing layer, or providing a camouflage printing layer on a base material and further providing a hidden pattern printing layer. 2. The hidden pattern printing layer is provided with a check pattern portion having a regular pattern and a pattern border portion provided around the check pattern portion and having a pattern shifted by a half cycle from the pattern of the check pattern portion. And a background region having a regular pattern different from the confirmation pattern so that the confirmation pattern portion and the pattern border portion cannot be visually confirmed. Printed matter. 3. The printed matter according to claim 1, wherein the camouflage printing layer is printed in the same color or a similar color as the hidden pattern printing layer. 4. The printed matter according to claim 1, wherein the camouflage pattern of the camouflage print layer is a continuous repetition pattern. 5. The printed matter according to claim 1, wherein the camouflage pattern of the camouflage printing layer is an irregular pattern. 6. The printed matter according to claim 1, wherein an occupied area ratio of the camouflage pattern of the camouflage printing layer is 90% or less. 7. A confirming tool having a pattern which interferes with a hidden pattern print layer of a printed matter according to claim 1. 8. The printed matter according to claim 1 and the checking tool according to claim 7 are superimposed on each other, and the presence or absence of a moire pattern confirms that the printed matter is an original printed matter. How to confirm.