JP3385459B2 - Authenticity printed matter - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is in the field of security printed matter requiring anti-counterfeiting effect, that is, banknotes, passports, securities, identification cards, cards, pass tickets, other valuable printed matter and important documents. , Forgery-preventing or genuine / counterfeit printed matter in which information formed by using a glitter ink and a highly light-absorbing ink on a base material can impart a holographic effect that changes depending on an observation angle at a low cost by a printing method Is.

[0002]

2. Description of the Related Art Recently, for printed matter such as important documents requiring security, a forgery prevention element having a new design and a high forgery prevention effect and a printing technique have been desired. For this reason, in recent years, by mixing special bright powders such as interference mica, oxidized flake mica, and pigment-coated aluminum flakes into inks and paints, color flip-flop properties that cause color changes depending on the observation angle have been achieved. There are some which are pasted with an optical security element such as a printed matter or a hologram whose image changes depending on the viewing angle.

Here, the color flip-flop property means the angle dependence of the color, and is the property that the lightness and darkness of the coating film surface and the color change depending on the viewing angle. In particular, the property of changing the lightness and darkness of color is called a flip-flop property, and the property of changing a hue is called a color flip-flop property.

As a technique utilizing the above-mentioned special glittering powder having such properties, for example, a mixture of conventional scale-like metallic pigments, a scale-like metallic pigment whose surface is coated with a colored pigment (Japanese Patent Application Laid-Open No. HEI-2) No. 142862), an interference mica whose surface is coated with titanium oxide, a metallic paint using a colored mica whose surface is coated with iron oxide or an organic pigment, and a paint which uses a scaly colored aluminum pigment and mica in combination (Japanese Patent Laid-Open No. Hei 5 (1999) -58242). -7071
No. 9) is proposed.

Further, in JP-A-7-292994, a combination of a plurality of scale-like colored pigments having different color tones or a combination of scale-like colored metallic pigments and organic pigments different in color from the pigments is used. A color flip-flop type metallic paint capable of forming a coating film excellent in flip-flop property is described.

Further, with the development of color copying machines in recent years, it has become possible to make delicate copies that are indistinguishable from genuine ones, and forgery of securities, checks, banknotes, etc. by copying machines has occurred. These printed / counterfeit printed materials can be easily identified as counterfeit goods by a skilled appraiser or a special appraisal device, but there are many types of securities, etc., and they are widely distributed, making it difficult for ordinary people to handle them. Many. Therefore, it is not a practical means to rely on a skilled appraiser or a special appraisal device for authenticity judgment of all securities, etc., and it is desired that ordinary people can easily and instantly make judgments. ing.

However, in the forgery-preventing or authenticity-discriminating printed matter using the ink containing the special glittering powder, the glittering powder itself is expensive, and thus the cost of the printed matter is increased. In addition, such printed matter utilizes only the angle-dependent property of color due to its glittering property, and obtains similar or similar glittering powder and kneads it with ink and paint. Is easily forged by. That is, in the forgery prevention or authenticity discrimination printed matter using the ink using the conventional glittering powder having the angle dependency of the color, it is easily forged, and the general person can easily and instantly judge. Is difficult to do.

On the other hand, holograms are now widely used not only for anti-counterfeit relations such as securities, credit cards, ID cards, etc. but also in the fields of advertising and display because of their rainbow-like decorativeness and unexpectedness due to their three-dimensional effect. Has been done.

In such a hologram whose image and color are changed, Japanese Patent Laid-Open No. 63-131167 discloses in Japanese Patent Laid-Open No. 63-131167 that the time and labor required for producing a rainbow hologram are shortened and the deterioration of the image quality of the hologram due to vibration is suppressed. In addition, there is proposed a method of newly producing a hologram of a diffused rainbow hologram into a desired pattern by an optical copy method.

Further, Japanese Laid-Open Patent Publication No. 5-35171 discloses a master hologram in which the direction of diffracted light is limited on the surface of a photosensitive material in order to produce a stable stereoscopic image hologram in an extremely short time. Has been proposed, in which a laser beam is made to enter from a master hologram or a photosensitive material surface to a position corresponding to image data and the master hologram to be superimposed on the photosensitive material surface is changed and repeatedly executed.

In any case, however, the hologram requires a special and expensive device, and in terms of cost, manufacturing time, and mass production, further, when the hologram is applied to the base material,
Since a special adhesive or the like is required, there are problems in terms of physical strength in the production process and distribution as compared with similar security elements obtained by printing.

Further, Japanese Patent Application No. 10-3 previously filed by the applicant
In 33549, the plate (C) with any gradation, the plate
(M), observation by forming an image using any bright ink corresponding to the plate surface (Y) and any highly light-absorbing ink corresponding to the plate surface (K) having any gradation By changing the angle, the visibility image becomes invisible, and
We propose a genuine / counterfeit printed matter in which a non-visibility image becomes visible. However, this printed matter requires at least one pair of images in order to make the visibility image invisible and to make the non-visibility image visible by changing the observation angle.

From the above, it goes without saying that the difference in color tone between the printed matter and the color / copy material is remarkable.
A printing technology in which the angle dependence of color in a real printed matter cannot be easily reproduced by simply obtaining the special glittering material and mixing it in ink and paint, and further,
There has been a demand for an advanced printing technique and a printed material that can be easily discriminated from the authenticity by a general person who needs an arbitrary printed material and does not need a special method.

[0014]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and while using general and relatively inexpensive materials and printing methods, At a specific observation angle, the arbitrary information (P) recognized by the human eye changes as the observation angle changes,
This is to provide a printed matter that will be recognized as completely different optional information (Q).

Generally, security images such as holograms are formed by using expensive and special materials and devices. Furthermore, in order to form a security print using a security image such as a hologram, the security image such as a hologram must be indirectly attached to the base material of the security print by using an adhesive or the like. ,
Additional steps are required.

However, according to the present invention, a security image exhibiting a hologram effect can be directly applied to the base material of the security print only by using a general printing method, resulting in cost performance and mechanical distribution strength. It is an authenticity / fake discriminating printed matter using excellent anti-counterfeiting technology.

[0017]

First, second, third and fourth elemental image portions having different gradations are formed on a base material, and the first, third and fourth elemental image portions are formed. Respectively use at least a glitter ink, and the second element image portion forms an image portion using at least a highly light-absorbing ink, and the relationship between the colors of the first and second element image portions is However, when observing in the regular reflection light region with respect to the illumination light source, different colors are recognized, and the arbitrary information (P) is recognized. None, the arbitrary information (P) is not recognized, and the relationship between the colors of the third and fourth elemental image portions does not show a uniform color or a substantially equal relationship when observing in the specular light region. The arbitrary information (Q) is not recognized and is different when observing in the diffused light area. That color and become another of any information (Q) is
It is recognized that the image (V) is formed by arbitrarily arranging the first, second, third, and fourth elemental image portions alternately, and the observation angle is changed from the regular reflection light area to the diffused light area with respect to the illumination light source. The information presented by the image (V) is changed to
It is a genuine / counterfeit discrimination printed material characterized by changing from arbitrary information (P) to other arbitrary information (Q).

Further, the first elemental image portion has at least a plate surface (W) for the first color ink, a plate surface (X) for the second color ink, and a third plate.
It is configured by combining images formed on the plate surface for color ink (Y), and the second element image portion is at least the plate surface for first color ink (W), the plate surface for second color ink (X), It is constituted by combining images formed on the plate surface for three-color ink (Y) and the plate surface for fourth-color ink (Z), and the third element image portion is at least the plate surface for first-color ink (W), It is constituted by combining images formed on the second color ink plate surface (X) and the third color ink plate surface (Y), and the fourth element image portion is at least the first color ink plate surface (W). , An authenticity discrimination printed matter, which is constituted by combining images formed on the second color ink plate surface (X) and the third color ink plate surface (Y).

The first, third, and fourth elemental image portions are formed on at least the first color ink plate surface (W), the second color ink plate surface (X), and the third color ink plate surface (Y). The image is formed by using the corresponding glitter ink, and the second element image portion uses an ink having high light absorption corresponding to at least the plate surface (Z) for the fourth color ink. It is the authenticity discrimination printed matter.

Further, in the first, second, third and fourth element image portions, at least the plate surface (W) for the first color ink, the plate surface (X) for the second color ink, and the plate surface (for the third color ink) 3 corresponding to Y)
An image is formed by using a color brilliant ink and further by using an ink having a high light absorbing property corresponding to the plate surface (Z) for the fourth color ink in the second element image portion. It is the authenticity discrimination printed matter.

In addition, since the first, second, third and fourth elemental image portions are composed of pixels of arbitrary shape,
It is a genuine / counterfeit printed matter characterized by expressing colors.

Preferably, the true / false discrimination printed matter is characterized in that the pixels are halftone dots.

Further, the plate surface (W) for the first color ink, the second
Authenticity discrimination, wherein the colors of the glitter ink corresponding to the plate surface (X) for color ink and the plate surface (Y) for third color ink are cyan, magenta, and yellow glitter inks, respectively. It is a printed matter.

Further, the authenticity determination printed matter is characterized in that the colors of the first and second elemental image portions are grayish.

Further, the genuine / counterfeit printed matter is characterized in that the ink having a high light absorption corresponding to the plate surface (Z) for the fourth color ink is black or black.

At this time, preferably, the first color ink plate surface (W), the second color ink plate surface (X), the third color ink plate surface (Y) and the fourth color ink in the first element image portion. The halftone dot area ratios of the printing plate (Z) are near 60%, 50%, 50% and 0% respectively, and the printing plate surface (W) for the first color ink and the second color ink in the second element image portion The halftone dot area ratio of each of the printing plate surface (X), the plate surface for the third color ink (Y) and the plate surface for the fourth color ink (Z) is around 50%, 40%, 40% and 20%. Halftone dots of the first color ink plate surface (W), the second color ink plate surface (X), the third color ink plate surface (Y), and the fourth color ink plate surface (Z) in the three-element image area. The area ratio is near 50%, 25%, 55% and 0%, and the plate surface for the first color ink (W), the plate surface for the second color ink (X), and the third color ink in the fourth element image portion. Printing plate (Y) and 4th color ink printing plate (Z) The true / false discrimination printed matter is characterized in that the dot area ratios thereof are around 40%, 10%, 40% and 0%.

Further, at the observation angle of the regular reflection light region with respect to the illumination light source, the color difference ΔE between the first and second elemental image portions is 3
As described above, particularly preferably 6 or more, the color difference ΔE between the third and fourth elemental image portions is 3 or less, and the observation angle of the diffused light region with respect to the illumination light source is the first and the first. The true / false discrimination printed matter is characterized in that the color difference ΔE of the two-element image portion is 3 or less, and the color difference ΔE of the third and fourth element image portions is 3 or more, particularly preferably 6 or more.

Further, the first and second elemental image portions have arbitrary shapes, form the informational image portion and the background image portion of the arbitrary information (P), and the third and fourth elemental image portions have arbitrary shapes. A shape is formed, an information image portion and a background image portion of the other arbitrary information (Q) are formed, and the first, second, third and fourth portions are formed.
The elemental image part is characterized by an arrangement such that the arbitrary information (P) and the other arbitrary information (Q) presented depending on the observation angle are arranged so that they can be sufficiently recognized as an image. It is a discriminating printed matter.

Further, the first and second elemental image portions have a line shape and are alternately adjacent to each other, so that the arbitrary information (P)
An information image portion and a background image portion of the
And the fourth element image part shows a line shape, and is adjacent to each other alternately to form the information image part and the background image part of the other arbitrary information (Q), and the information image part of the arbitrary information (P). Further, the authenticity determination printed matter is characterized in that the background image portion, the information image portion of the other arbitrary information (Q) and the background image portion are alternately arranged.

Further, in the image (V), the first element image portion is the information image portion of the arbitrary information (P), and the second element image portion is the background image portion of the arbitrary information (P), The third element image portion is an information image portion of the other arbitrary information (Q), and the fourth element image portion is a background image portion of the other arbitrary information (Q). It is a discriminating printed matter.

In the image (V), the first element image portion is the background image portion of the arbitrary information (P), the second element image portion is the information image portion of the arbitrary information (P), The third element image portion is an information image portion of the other arbitrary information (Q), and the fourth element image portion is a background image portion of the other arbitrary information (Q). It is a discriminating printed matter.

In the image (V), the first element image portion is the information image portion of the arbitrary information (P), and the second element image portion is the background image portion of the arbitrary information (P), The third element image portion is a background image portion of the other arbitrary information (Q), and the fourth element image portion is an information image portion of the other arbitrary information (Q). It is a discriminating printed matter.

In the image (V), the first element image portion is the background image of the arbitrary information (P), the second element image portion is the information image portion of the arbitrary information (P), and ,
Authenticity discrimination printed matter, wherein the third element image part is a background image part of the other arbitrary information (Q), and the fourth element image part is an information image part of the other arbitrary information (Q) Is.

Further, in the genuine / counterfeit printed matter, the glitter ink corresponding to the plate surface (W) for the first color ink, the plate surface (X) for the second color ink and the plate surface (Y) for the third color ink is ,
A genuine / counterfeit printed matter, which is a first glitter ink containing at least glitter powder.

In the authenticity / fake printed matter, the glitter ink corresponding to the plate surface (W) for the first color ink, the plate surface (X) for the second color ink and the plate surface (Y) for the third color ink is used. ,
A second containing at least a first colored powder and a glittering powder, respectively
Is a glitter ink, and is a genuine / counterfeit discrimination printed matter.

In the genuine / counterfeit printed matter, the glitter ink corresponding to the plate surface (W) for the first color ink, the plate surface (X) for the second color ink, and the plate surface (Y) for the third color ink is Authenticity which is at least a first colored powder, a second colored powder having a particle diameter relatively smaller than that of the first colored powder, and a third bright ink containing the bright powder. It is a discriminating printed matter.

Preferably, the color of the second colored powder is
It is a genuine / counterfeit discrimination printed matter having a complementary color relationship with the first colored powder.

Further, the glittering powder is a genuine / counterfeit discriminating printed matter characterized in that it is a metallic luster powder having a specular reflection.

[0039]

BEST MODE FOR CARRYING OUT THE INVENTION A color print having a general gradation and reproducing a wide range of colors uses four color inks in which black is added to three primary color components of cyan, magenta and yellow. Printing is performed, that is, color reproduction is performed based on the principle of subtractive color mixing of the colors reflected from the ink coating surface. Optically, although color and gloss are completely different phenomena, they are psychologically closely related, and people use the light specularly reflected from the surface of an object with metallic luster as color. I will recognize.

That is, the authenticity / fake discriminating printed matter of the present invention is effectively applied in combination with the gloss derived from the specularly reflected light from the metallic glossy surface and the subtractive color mixture of the color of the ink coating film to obtain a hologram effect. To form an image having

The principle and configuration of the present invention utilizing the above two phenomena will be described below. In general, as shown in the conceptual diagram of the spatial distribution of reflected light in FIG. 1, a printed image surface (1) formed on a printing substrate such as a paper by a glittering colored ink is used for illumination light source (2). When observed in the regular reflection light area, the regular reflection light (surface reflection) (3) from the print image surface (1) becomes dominant, and the print image surface formed by the glitter color ink
The colored component derived from the in-layer reflection (4) of (1) becomes difficult to be visually recognized, and causes a visually decoloring phenomenon. On the other hand, when observed in the diffused light area, the specular reflection light (surface reflection) (3) from the print image surface (1) becomes small, and the print image surface (1) formed with the glitter color ink relatively The colored component derived from the intra-layer reflection (4) is emphasized.

For example, as shown in FIG. 2, the printing image surfaces (1-a) and (1-b) formed on the printing substrate by the two different color glittering color inks are used as the illumination light source ( When observed in the specular reflection light area for 2), the specular reflection light (surface reflection) (3-a) and (3-b) from the printed image surface (1-a) and (1-b) is dominant. And the intra-layer reflection (4) of the printed image surfaces (1-a) and (1-b) formed by the two different color glittering color inks.
Different colored components derived from -a) and (4-b) are difficult to visually recognize, and are visually recognized as the same color.
On the other hand, when observed in the diffused light area, the printed image surface (1-a) and
Specular reflection light (surface reflection) (3-a) and (3-b) from (1-b) becomes small, and the printed image surface formed by the relatively different two color glittering color inks ( 1-a) and (1-b) intra-layer reflections (4-a) and (4-b), which are different from each other, are colored in two different color components, and the difference in color is visually recognized.

Further, as shown in the conceptual diagram of the spatial distribution of reflected light in FIG. 3, when the two are observed in a diffused light area, they are formed of the glitter color ink so that they are visually the same color. Print image surface (1-c) and print image surface (5) formed by using at least a highly light-absorbing ink on part of the image
When observed in a regular reflection light region, the printed image surface (1-c) formed of the glittering color ink shows that regular reflection light (surface reflection) (3-c) is reflected in the layer (4- c) It becomes more dominant, and when compared with the specular reflection light (surface reflection) (3-d) from the printed image surface (5) formed by using the ink with high light absorption property in a part of the image. , A remarkable difference in lightness can be obtained and can be recognized as a difference in color. On the other hand, when observed in the diffused light region, in both print image planes (1-c) and (5), the color components derived from the intra-layer reflections (4-c) and (4-d) from the print image planes. Therefore, it becomes impossible to recognize the difference in brightness and the difference in color.

Here, when evaluating the color difference between two colors, as a method of expressing the color difference by one numerical value,
ΔE is used, and a general guideline for evaluating the ΔE is shown in FIG. This is variable depending on the condition under which the printed matter of the present invention is changed under such conditions that the viewing angle is changed, that is, the printed matter of the present invention is observed in the regular reflection light region and the diffused light region with respect to the illumination light source. Then, if ΔE is within about 3, it is difficult to visually distinguish the color difference.

In the basic form of the authenticity discrimination printed matter of the present invention, first, second, third and fourth elemental image portions having different gradations are printed on a base material. The third and fourth elemental image portions are each formed of at least one color of the glitter ink, and the second elemental image portion is formed of at least one color of a highly light-absorbing ink, that is, a black ink. Images having a wide range of gradations are formed, and a remarkable difference in brightness is recognized in the first and second element image portions at the observation angle of the regular reflection light region with respect to the illumination light source. , The third and fourth elemental image parts are recognized as substantially equal colors, and the first and second elemental image parts are recognized as substantially equal colors at the viewing angle of the diffused light region with respect to the illumination light source. , The third and fourth elemental image parts When a noticeable color difference is recognized, the image (V) is formed by arbitrarily arranging the first, second, third and fourth element image portions, and the first and second elements are formed. The arbitrary information (P) is formed in the image (V) by using either one of the images as the arbitrary information image portion or the background image portion, and the third and fourth element images It is a genuine / counterfeit discrimination printed matter in which another arbitrary information (Q) is formed in the image (V) by making one of them an arbitrary information image portion or a background image portion.

Here, the ink having high light absorption means
Black ink or black ink is preferable.

The observation angle of the diffused light region with respect to the illumination light source means that the observation angle with respect to the incident angle of the light from the illumination light source is outside the specular reflection light region on the plane of the genuine / counterfeit printed matter. I mean.

Preferably, the color difference ΔE between the first and second elemental image portions is 3 or more, preferably 6 or more at the observation angle of the specular reflection light region, and is diffused with respect to the illumination light source. It is an image in which the color difference ΔE between the first and second element image portions is 3 or less at an arbitrary observation angle of the light area, and the third and fourth element image portions are at an observation angle of the specular reflection light area. The color difference ΔE is 3 or less, and the color difference ΔE between the third and fourth elemental image portions is 3 or more, preferably 6 or more at an arbitrary viewing angle in the diffused light region.

That is, at the observation angle of the specular reflection light region,
When observing the first and second elemental image portions, the first and second elemental image portions are relatively recognized as an image having a visually distinct brightness difference. Due to this remarkable lightness difference, the arbitrary information (P) can be dominantly recognized. However, at an arbitrary viewing angle of the diffused light region, the first and second elemental image parts are visually perceived to have colors that are substantially equal to each other, making it difficult to recognize the arbitrary information (P). .

On the other hand, at the viewing angle of the specular reflection light region, the third and fourth elemental image portions are recognized as color images of the same degree in which there is no visually noticeable color difference.
It becomes difficult to recognize the other arbitrary information (Q). However, at the viewing angle of the diffused light region, the third and fourth elemental image portions are recognized as an image having a visually noticeable color difference, and this noticeable color difference causes the other arbitrary information to be recognized. (Q) can be predominantly recognized.

Therefore, in the authenticity / fake discriminating printed matter of the present invention, the arbitrary information is changed by changing the observation angle with respect to the base material from the regular reflection light region to the diffused light region with respect to the illumination light source.
The information recognized from (P) to the other arbitrary information (Q) can provide an effect of hologram-like change.

In the above contents, the first and second element image portions have arbitrary shapes, the information image portion and the background image portion of the arbitrary information (P) are formed, and the third and fourth element images are formed. Part shows an arbitrary shape, forms the information image part and the background image part of the other arbitrary information (Q), and the first, second, third and fourth elemental image parts are at an observation angle. The arbitrary information presented dependently (P) and the other arbitrary information (Q) is the shape of each element image portion such that it can be recognized as a sufficiently visually clear information image, and, Applies to everything that is an arrangement.

Further, the glitter ink used for producing the genuine / counterfeit printed matter of the present invention can be in the following three forms.

That is, at least 1 of the glitter ink is used.
A first glitter ink containing a glitter powder colored in at least one color, or a second glitter ink containing at least one color of the first colored powder and at least one color of the glitter powder. The glitter ink, and further, the glitter ink comprises at least one color of the first colored powder and at least one color of which the particle diameter is relatively smaller than that of the first colored powder.
Colored powder and at least one or more of the glittering powders are mixed, and three forms of the third glittering ink in which the colors of the first and second colored powders have a complementary color relationship are provided. Existence, and the effect of the present invention on the glitter ink of the three forms will be described below.

First, the case where the first glitter ink is used will be described below.

Regarding the first and second element image portions, at the observation angle in the specular reflection light region, the gloss derived from surface reflection is predominantly recognized in the first element image portion,
Moreover, in the second element image portion, since the ink having high light absorption is present in at least a part of the image, the amount of reflected light reaching the human eye is relatively small. As a result, the first and second elemental image portions are recognized by the human eye as images having a remarkable difference in brightness, and the arbitrary information (P) can be recognized at a glance. Further, at the viewing angle in the diffused light region, in the first and second elemental image parts, the color components derived from the in-layer reflection are relatively emphasized, and the color formed by the subtractive color mixture is dominant. become. As a result, they are recognized in the same color as each other, and the arbitrary information (P)
It becomes difficult to recognize at first glance.

On the other hand, regarding the third and fourth elemental image portions, at the observation angle in the specular reflection light region, the gloss derived from surface reflection becomes more dominant than the coloring component derived from in-layer reflection, and The color formed by the subtractive color mixture is less visually recognizable, the colors of the third and fourth elemental image portions are erased, and the colors are recognized to have almost the same color, and the other arbitrary information (Q ) Becomes difficult to recognize at a glance. Further, at the observation angle of the diffused light region, the coloring component derived from the in-layer reflection is relatively emphasized, and the color formed by the subtractive color mixture becomes dominant. As a result, they are recognized by the human eye as different colors, and the other optional information
You can recognize (Q) at a glance.

Therefore, the information displayed by the image (V) is
By changing the observation angle from the specular light region to the diffuse light region, the arbitrary information from the arbitrary information (P) (Q)
Changes visually.

Next, the effect of the present invention when the second glitter ink is used is the same as when the first glitter ink is used.

Further, the case of using the third glitter ink will be described below.

Regarding the first and second elemental image portions, at the observation angle in the specular reflection light region, in the first elemental image portion, the gloss derived from surface reflection and the intermediate color of the second colored powder are observed. Moreover, in the second element image portion, since the ink having high light absorption is present in at least a part of the image, the amount of reflected light reaching the human eye becomes relatively small. As a result, the first and second elemental image portions are recognized by the human eye as an image having a remarkable difference in brightness, and the arbitrary information (P) can be recognized at a glance. In addition, at the observation angle in the diffused light region, the subtractive color mixture of the color components due to the in-layer reflection is relatively emphasized in the first and second element image portions. As a result, the colors are recognized to be similar to each other, and it becomes difficult to recognize the arbitrary information (P) at a glance.

On the other hand, regarding the third and fourth elemental image portions, at the observation angle in the specular reflection light region, the gloss derived from surface reflection and the intermediate color of the second colored powder are colored due to intralayer reflection. It becomes more dominant than the subtractive color mixture of the components, and the third and fourth elemental image portions are recognized to have colors similar to each other, and it is difficult to recognize the arbitrary information (Q) at a glance. Further, at the observation angle in the diffused light region, the subtractive color mixture of the color components due to the in-layer reflection is relatively emphasized. As a result, as different colors,
It is recognized by the human eye, and the arbitrary information (Q) can be recognized at a glance. Further, the first colored powder and the second colored powder
Since the colored powder has a complementary color relationship, the color change of the image depending on the observation angle is emphasized.

Therefore, the information displayed by the image (V) is
By changing the observation angle from the specular light region to the diffuse light region, the arbitrary information from the arbitrary information (P) (Q)
Changes visually.

[0064]

EXAMPLES The physical properties and composition of the optional glitter ink used in the present invention are as follows, and are constituted by containing at least an optional metallic luster powder.

The film-forming binder used in the present invention is
The glittering powder, the first colored powder and the second colored powder are dispersed to form a printing surface, and the type thereof is not particularly limited, and known resins for paints and inks. Can be used. As the resin used as such a film-forming binder, for example, an acrylic resin,
Examples of the thermoplastic resin include a basic resin such as polyester resin, alkyd resin, silicon resin, and fluororesin, which is optionally mixed with a crosslinking agent such as amino resin or isocyanate compound. Further, ultraviolet light having an epoxy ring, an oxetanyl group, an acryloyl group and a methacryloyl group, that is, UV curability and electron beam, that is, E
B curable resin is present. In addition, a two-component polyurethane resin that is dried or cured at room temperature, a coating resin such as a two-component silicone resin, or the like can be used. These film-forming binders may be used alone or in combination of two or more.

The first colored powder forms the basic color of the glitter ink, and can be composed of the following known coloring materials according to each color. Blue powders include inorganic powders such as ultramarine blue, Prussian blue, cobalt blue, and organic pigments belonging to phthalocyanine-based, slene-based, azo-based, and anthraquinone-based CI pigment blues, and red powders include cadmium. Inorganic powders such as red, red iron oxide, molybdenum red and organic pigments belonging to CI pigment red such as azo, quinacridone, perylene, lake red, etc., yellow powders such as chrome yellow, cadmium yellow, titanium yellow, etc. Organic pigments belonging to CI Pigment Yellow such as powder and quinophthalone type, azo type, isoindoline type, and purple powder include inorganic powder such as cobalt purple and manganese purple and CI such as oxazine type, azo type and anthraquinone type. Pigment Violet organic pigment, green powder, black Green can be used organic pigments belonging to CI Pigment Green inorganic powder and phthalocyanine such as cobalt green. The glitter ink is an ink obtained by adding a metallic luster powder, an additive, and a vehicle described below to these known coloring materials. Further, it is possible to adjust a colorant having an arbitrary color tone by combining several colors of these powders. In addition, known colored inks such as offset inks and gravure inks used in general printing can also be used as the colored material.

As the metallic luster powder used in the present invention, known scale-like particles which are blended in the ink for imparting a metallic feeling to the printed coating film can be used without limitation. Specific examples of the metallic powder include metal flakes such as aluminum flakes, nickel flakes, titanium flakes, alloy flakes such as stainless steel and brass. Among them, aluminum flakes are preferable in view of glitter and cost performance. As the metallic powder, commercially available products can be used, and examples thereof include an aluminum paste manufactured by Toyo Aluminum Co., Ltd., a colored aluminum paste, an aluminum paste manufactured by Showa Aluminum Powder Co., Ltd., and a colored aluminum paste. Further, the metallic powder may be blended alone, but may be blended in combination of two or more. In addition, known metallic luster inks such as offset inks and gravure inks used in general printing can also be used as the metallic material.

As the transparent fine particle pigment which is the second colored powder used in the present invention, a coloring pigment selected from iron oxide-based and composite metal oxide-based coloring pigments can be used.
This transparent fine particle pigment has a particle size relatively smaller than that of the first colored powder and is excellent in transparency. Preferably, an inorganic pigment having a small hiding power of about 0.01 to 0.1 μm is used.

The method for producing a printed matter using the glitter ink and the black ink includes gravure printing method, offset printing method, silk screen printing method, intaglio printing method and other known printing methods, and is used for sheet metal coating and the like. Any means can be used as long as it is a means for forming a coating film on a substrate, such as a spray method.

Hereinafter, in order to preferably explain the authenticity discrimination printed matter of the present invention, in particular, an embodiment using the third glitter ink will be specifically described. The printed matter is not limited to this, and it is possible to obtain a genuine / counterfeit discriminating printed matter having the same observation angle dependency with respect to other printed matter using the first and second glitter inks.

FIG. 5 shows the plate surface for the first color ink (W), the plate surface for the second color ink (X) and the plate surface for the third color ink used in this example.
It is a figure which shows the composition regarding 3 types of said 3rd glitter ink corresponding to each of (Y). Based on a commercially available silver-colored offset ink, the first colored powder was phthalocyanine blue H [Sanyo Dye Co., Ltd.], permanent carmine FB [Sanyo Dye Co., Ltd.], Irgadine 2G LTE Yellow (CIBA-GEIGY), respectively. As the second colored powders having a complementary color relationship with the first colored powders, the respective dipyrroxides TM # 322
Bright offset inks (CRS), (MGS) and (YBS) containing 0, 3320 and 3410 (Dainichi Seika Co., Ltd.) were prepared. These three types of glitter offset ink (CR
S), (MGS) and (YBS) and a commercially available black ink, that is, Trans G, which is an offset black ink manufactured by DIC in this example, was used.

FIGS. 6 and 7 show the angle dependence of the color in the solid color product (a) of the third glitter ink (CRS) and the solid color product (b) of the commercially available black ink. Measurement was performed using a goniospectrophotometer GSP-1 type [Murakami Color Co., Ltd.], the incident light of the light source to the measurement sample was fixed at 45 °, and the light receiving angle was changed from -10 ° to 70 °. It was measured. The standard white plate 3018A was used to calibrate the device, and the incident light angle was 45 ° and the light receiving angle was 0 °. It is possible to exceed.

FIG. 6 is a graph showing the relationship between L * and the light receiving angle of the CIE-L * a * b * color system. For the incident light angle of 45 °, the measurement result (6) of the solid color development product (a) of the glitter ink (CRS) shows that L * is relatively small value of 50 to 100 in the diffuse light region. Although shown, in the specular reflection light region, the maximum value is 250. On the other hand, the measurement result of the solid color development product (b) of the black ink showing high light absorption (7)
Then, L * does not show the angle dependence but always shows a constant value. That is, in the regular reflection light region, the third glitter ink (CRS) has an extremely large amount of reflected light as compared with the black ink, and the color reaching the eyes is the metal of aluminum piece in the silver offset ink. The white light comes from the luster.

FIG. 7 is a graph showing the relationship of a * -b * showing the hue change of the CIE-L * a * b * color system. The third
Measurement result of solid color development product (a) with the glitter ink (CRS)
It can be seen that in (8), the hues, that is, a * and b *, are greatly changed depending on the observation angle, and in particular, a peculiar change is shown near the light receiving angle of 45 ° (9). In comparison, the measurement result (10) of the color-developed product (b) with the black ink showed a small change in the central part of the graph, and the angle dependence of the color was the same as that of the third glitter ink (CRS). It means that it is extremely small in comparison.

FIGS. 8, 9, 10 and 11 show the first and second element images and the third and fourth element image portions in the present embodiment with a variable angle spectrophotometer GSP-1 type [Murakami color ( Inc.] was used to fix the incident light of the light source to the measurement sample at 45 °, and the light receiving angle was changed from −20 ° to 80 ° for measurement. For the instrument calibration, the standard white plate 3018A is used, and the incident light angle is 45 °, the light receiving angle is 0 °, that is, the standard white plate is calibrated with a perfect diffusion surface.
The L * value can exceed 100.

FIGS. 8 and 9 show the glitter ink corresponding to the first color ink plate surface (W), the second color ink plate surface (X) and the third color ink plate surface (Y) formed in this embodiment. (CRS), (MG
S), (YBS) and the CIE-L * a * b * color system in the first and second and third and fourth elemental image portions formed from commercially available black ink corresponding to the plate surface (Z). 5 is a graph showing the relationship between L * of FIG. However, the halftone dot area ratio of each of the first color ink plate surface (W), the second color ink plate surface (X), the third color ink plate surface (Y), and the fourth color ink plate surface (Z) in this example. In the first element image part, 60%, 50%,
50% and 0% vicinity, 50%, 40 in the second element image part
%, 40% and around 25%, 50 in the third element image part
Images are formed in the vicinity of%, 25%, 55% and 0%, and in the fourth element image portion in the vicinity of 40%, 10%, 40% and 0%. That is, when observing in the specular reflection light region with respect to the incident angle of the illumination light source, particularly when the light receiving angle is near 45 °, the brightness L * (11) of the first element image part and the second element image part Lightness L *
Although (12) is remarkably different, the third lightness L * (13) and the lightness L * (14) of the fourth elemental image portion are similar. on the other hand,
When observing in the diffused light region with respect to the incident angle of the illumination light source, particularly when the light receiving angle is around -20 ° to 10 °, the first
The lightness L * (11) of the elemental image part and the lightness L * (1 of the second elemental image part
2) is similar, but the lightness L * (1
The brightness L * (14) of 3) and the 4th element image part are remarkably different.

FIGS. 10 and 11 show the relationship of a * -b * showing the hue change of the CIE-L * a * b * color system in the first and second and third and fourth elemental image parts. It is the graph shown. That is, with respect to the incident angle of the illumination light source, the specular reflection light area (1
When observed in 5), the a * -b * result (16) of the first element image part and the a * -b * result (17) of the second element image part have relatively different saturations. A *-in the third element image part
In the result (18) of b * and the result (19) of a * -b * in the fourth elemental image part, the hues are relatively similar. On the other hand, when observed in the diffused light region (20) with respect to the incident angle of the illumination light source, the result (16) of a * -b * of the first elemental image section and the a * -b * of the second elemental image section
In the result (* 17) of * -b *, the saturation and hue are remarkably close to each other, and the result (18) of a * -b * in the third element image part and the fourth result
In the result (19) of a * -b * in the elemental image part, the hue and the saturation are significantly different.

FIG. 12 shows the color difference ΔE between the first and second element image portions and the color difference ΔE between the third and fourth element image portions.
3 is a list showing values for each observation angle of. The first
And the color difference ΔE between the second elemental image part is 8 in the vicinity of the regular reflection light area.
As described above, conversely, there is a light receiving angle of 3 or less in the diffused light region. Further, the color difference ΔE between the third and fourth elemental image portions is 3 or less in the vicinity of the specular reflection light region, and conversely, there is a light receiving angle of 6 or more in the diffused light region.

Next, the manufacturing procedure of the authenticity / fake discriminating printed material of the present invention in the embodiment will be described with reference to the drawings.

Example 1 FIG. 13 shows the plate surface for the first color ink (W), the plate surface for the second color ink (X), the plate surface for the third color ink (Y) and the plate surface for the fourth color ink ( FIG. 14 is a schematic view of an original image (21) of Z), and FIG. 14 is an enlarged view of a portion (22) surrounded by a circle in FIG. 13. An intersection of diagonal lines (24) of a 60 mm square (23) formed by continuously adjoining two kinds of linear lines (A) and lines (B) with a line width of 0.5 mm.
(25), "People" whose font size is about 200 in typesetting series (P)
The characters "People" (P) and "Country" (Q) are placed in the square image so that the centers of the characters "and""Country" (Q) are at the same position.

In the original image (21), an image in which the line (A) and the character "People" (P) are superimposed is an image formed only by the first element image portion and the line (A). The second
An element image part, an image in which the line (B) and the characters "Country" (Q) are superimposed is referred to as the third element image part, and an image formed by only the line (B) is referred to as the fourth element image part. To do. In the plate surface for the first color ink (W), the plate surface for the second color ink (X), the plate surface for the third color ink (Y) and the plate surface for the fourth color ink (Z),
The halftone dot area ratios of the element image parts are near 60%, 50%, 50% and 0%, and the halftone dot area ratios of the second element image part are near 50%, 40%, 40% and 25%. , 50%, 25%, 55% and near 0% of each halftone dot area ratio of the third element image portion, and 40%, 10%, 40% of each halftone dot area ratio of the fourth element image portion.
By forming the image so that it is close to 0% and 0%,
The plate surface for the first color ink (W), the plate surface for the second color ink (X), and the plate surface for the third color ink used in the four types of this embodiment shown in FIG.
(Y) and the fourth color ink plate surface (Z) were prepared.

Each of the luster corresponding to the first color ink plate surface (W), the second color ink plate surface (X), the third color ink plate surface (Y) and the fourth color ink plate surface (Z). Ink (CRS),
(MGS), (YBS) and commercial black ink
By performing offset printing on a printing substrate (26) such as paper, a genuine / counterfeit discrimination printed matter (27) in this example shown in FIG. 16 was produced.

FIG. 17 shows an external view (28) observed in the specular reflection light region and an external view (29) observed in the diffused light region of the authenticity determination printed matter (27) printed in this example. It is a thing. The authenticity / fake discriminating printed matter (27) includes the plate surface for the first color ink (W), the plate surface for the second color ink (X), and the plate surface for the third color ink.
(Y) and the above-mentioned glitter inks (CRS), (MGS), (YBS) corresponding to the plate surface (Z) for the fourth color ink, and commercially available black inks, respectively, the first, second, and The image (V) is formed by printing the third and fourth element image portions in the image arrangement described above. The information presented by the image (V) changes the observation angle from the regular reflection light area to the diffused light area with respect to the illumination light source, and the character information of "people"
The authenticity discrimination printed matter (27) that changes from (P) to the character information (Q) of "Country" is obtained.

That is, at the viewing angle of the regular reflection light region with respect to the illumination light source, the character information (P) "People" displayed by the image (V) is formed from the first and second element image portions. ing. Here, the first element image portion corresponds to the plate surface for the first color ink (W), the plate surface for the second color ink (X), and the plate surface for the third color ink (Y) having the halftone dot area ratio. It is printed with the glitter inks (CRS), (MGS) and (YBS), and the second elemental image portion has the plate surface (W) for the first color ink and the second color ink having the halftone dot area ratio. Plate (X), the above-mentioned glitter ink (CRS) corresponding to the plate surface (Y) for the third color ink,
In addition to (MGS) and (YBS), it is printed with a commercially available black ink corresponding to the plate surface (Z) for the fourth color ink having the dot area ratio. Therefore, at the observation angle of the specular reflection light region, the color difference ΔE between the first and second element image portions is
Is 8 or more, and conversely, there is a region where the color difference ΔE between the first and second elemental image portions is 3 or less at the observation angle of the diffused light region with respect to the illumination light source. On the other hand, at the viewing angle of the diffused light region, the character information (Q) "country" displayed by the image (V) is formed from the third and fourth element image portions. Here, the third and fourth elemental image parts are the plate surface (W) for the first color ink having the halftone dot area ratio,
It is printed with glittering ink (CRS), (MGS) and (YBS) corresponding to the plate surface (X) for the second color ink and the plate surface (Y) for the third color ink. , There is a region where the color difference ΔE between the third and fourth element image portions is 3 or less, and conversely, at the viewing angle of the diffused light region, the color difference ΔE between the third and fourth element image portions is 6 or more. To do.

That is, at the observation angle of the specular reflection light region,
The first elemental image portion is formed only by the third glitter inks (CRS), (MGS) and (YBS) having high light reflectivity, and in comparison to that, the second elemental image portion is , Because it contains commercially available black ink with high light absorption,
When observing in the regular reflection light region, the first and second element image portions are relatively recognized as an image having a visually noticeable difference in lightness. It is possible to predominantly recognize the character information (P) of "people" formed by this remarkable brightness difference. On the contrary, when observed in the diffused light region, the first and second element image portions are observed from the intermediate color between the gloss derived from the silver ink and the red, green and blue color components of the second colored powder. In comparison with the color derived from the additive color mixture, the observed colors derived from the subtractive color mixture of the cyan, magenta, and yellow color components of the first colored powder are dominant, and the colors are visually similar to each other. It becomes difficult to recognize the character information (P) of "people".

At the observation angle of the specular reflection light region,
The third and fourth elemental image portions are formed of only the glitter inks (CRS), (MGS) and (YBS) having high light reflectivity, and when observed in a specular reflection light region, In the fourth elemental image part, the color derived from the additive color mixture observed from the intermediate color between the gloss derived from the silver ink and the red, green, and blue color components of the second colored powder is the first colored powder. It becomes more dominant than the color derived from the subtractive color mixture of cyan, magenta, and yellow color components of the body, and it is visually perceived as colors that are similar to each other, and the character information (Q) of "country" can be recognized. It gets harder. On the contrary, when observing in the diffused light region, the observed color derived from the subtractive color mixture of the cyan, magenta, and yellow color components of the first colored powder becomes dominant in the third and fourth element image portions. , It is visually perceived in different colors, and it becomes easy to recognize the character information (Q) of "country".

Therefore, on the printing substrate (26) such as paper, the plate surface for the first color ink (W), the plate surface for the second color ink (X) and the plate surface for the third color ink having the above-mentioned halftone dot area ratio. (Y) and the above-mentioned glitter ink (CRS) corresponding to the plate surface (Z) for the fourth color ink,
(MGS), (YBS) and commercially available black inks are used to arrange the first, second, third and fourth elemental image parts in an alternating manner, and the present embodiment having the image (V) is carried out. The authenticity determination printed matter (27) described in the example, by changing the observation angle from the specular light region to the diffuse light region,
Character information "People" (P) to character information "Q" (Q)
Changes visually.

(Example 2) Further, in the original image (21), an image in which the line (A) and the character "Public" (P) are superimposed is displayed on the second element image portion and the line (A). ), The image formed with only the first element image portion, the line (B) and "country"
The image on which the character (Q) is superimposed is the third element image part,
An image formed only by lines (B) is the fourth element image portion. The plate surface for the first color ink (W), the plate surface for the second color ink (X), the plate surface for the third color ink (Y), and the plate surface for the fourth color ink
In (Z), the respective halftone dot area ratios of the first element image portion are around 60%, 50%, 50% and 0%, and the respective halftone dot area ratios of the second element image portion are 50%, 40%. %, 40% and around 25%,
The halftone dot area ratio of the third element image part is 50%, 25
%, 55%, and 0%, and the image is formed so that the dot area ratios of the fourth element image portions are 40%, 10%, 40%, and 0%, respectively. Similarly, four types of the first color ink plate surface (W), the second color ink plate surface (X), the third color ink plate surface (Y), and the fourth color ink plate surface (Z) were used in this embodiment. ) Was produced.

Each of the luster corresponding to the first color ink plate surface (W), the second color ink plate surface (X), the third color ink plate surface (Y) and the fourth color ink plate surface (Z). Ink (CRS),
An image (V) is formed by printing the first, second, third and fourth elemental image portions with (MGS), (YBS) and a commercially available black ink according to the image arrangement. ing. The information presented by the image (V) changes the observation angle from the regular reflection light region to the diffused light region with respect to the illumination light source, and the character information "People" (P) to "Country"
It is possible to obtain a genuine / counterfeit discrimination printed matter that changes to character information (Q). That is, at the viewing angle of the regular reflection light region with respect to the illumination light source, the character information (P) "People" displayed by the image (V) is formed from the first and second element image portions. Here, the first element image portion includes a plate surface for the first color ink (W) and a plate surface for the second color ink having the halftone dot area ratio.
(X), it is printed with glittering ink (CRS), (MGS) and (YBS) corresponding to the plate surface (Y) for the third color ink, and the second elemental image part shows the halftone dot area ratio. The glitter ink (CRS), (MGS) corresponding to the plate surface for the first color ink (W), the plate surface for the second color ink (X), and the plate surface for the third color ink (Y)
In addition to (YBS) and (YBS), it is printed with a commercially available black ink corresponding to the plate surface (Z) for the fourth color ink having the above-mentioned halftone dot area ratio. Therefore, at the viewing angle of the specular reflection light region, the color difference ΔE between the first and second element image portions becomes 8 or more, and conversely, at the viewing angle of the diffused light region with respect to the illumination light source, the first and second There is a region where the color difference ΔE of the two-element image portion is 3 or less.

On the other hand, at the viewing angle of the diffused light region, the character information (Q) "country" displayed by the image (V) is displayed.
Are formed from the third and fourth elemental image portions.
Here, the third and fourth elemental image portions have a plate surface for the first color ink (W), a plate surface for the second color ink (X), and a plate surface for the third color ink (Y) having the halftone dot area ratio. It is printed with glittering ink (CRS), (MGS) and (YBS) corresponding to, and the color difference ΔE between the third and fourth elemental image portions is 3 or less at the observation angle of the specular reflection light region, On the contrary, at the viewing angle of the diffused light region, there is a region where the color difference ΔE between the third and fourth elemental image portions is 6 or more.

That is, at the observation angle of the specular reflection light region,
The first elemental image portion is formed only by the third glitter inks (CRS), (MGS) and (YBS) having high light reflectivity, and in comparison to that, the second elemental image portion is , Because it contains commercially available black ink with high light absorption,
When observing in the regular reflection light region, the first and second element image portions are relatively recognized as an image having a visually noticeable difference in lightness. It is possible to predominantly recognize the character information (P) of "people" formed by this remarkable brightness difference. On the contrary, when observed in the diffused light region, the first and second element image portions are observed from the intermediate color between the gloss derived from the silver ink and the red, green and blue color components of the second colored powder. In comparison with the color derived from the additive color mixture, the observed colors derived from the subtractive color mixture of the cyan, magenta, and yellow color components of the first colored powder are dominant, and the colors are visually similar to each other. It becomes difficult to recognize the character information (P) of "people".

At the observation angle of the specular reflection light region,
The third and fourth elemental image portions are formed of only the glitter inks (CRS), (MGS) and (YBS) having high light reflectivity, and when observed in a specular reflection light region, In the fourth elemental image part, the color derived from the additive color mixture observed from the intermediate color between the gloss derived from the silver ink and the red, green, and blue color components of the second colored powder is the first colored powder. It becomes more dominant than the color derived from the subtractive color mixture of cyan, magenta, and yellow color components of the body, and it is visually perceived as colors that are similar to each other, and the character information (Q) of "country" can be recognized. It gets harder. On the contrary, when observing in the diffused light region, the observed color derived from the subtractive color mixture of the cyan, magenta, and yellow color components of the first colored powder becomes dominant in the third and fourth element image portions. , It is visually perceived in different colors, and it becomes easy to recognize the character information (Q) of "country".

Therefore, the plate surface for the first color ink (W), the plate surface for the second color ink (X), the plate surface for the third color ink (Y) and the plate surface for the fourth color ink (Z) having the above-mentioned halftone dot area ratio. ) Corresponding to the brilliant ink (CRS), (MGS), (YBS) and a commercially available black ink are used, and the first, second, third and fourth elemental image portions are arranged alternately. By doing so, the authenticity determination printed matter obtained by the present example having the image (V), by changing the observation angle from the specular reflection light region to the diffused light region, from the character information (P) "People" It visually changes to the character information (Q) of "country."

(Third Embodiment) In addition, in the original image (21), an image in which the line (A) and the characters "Public" (P) are superimposed is displayed on the first element image portion and the line (A). ), The image formed by only the second element image part, the line (B) and "country"
The image in which the character (Q) is superimposed is the fourth element image portion,
The image formed only by the lines (B) is the third element image portion. The plate surface for the first color ink (W), the plate surface for the second color ink (X), the plate surface for the third color ink (Y), and the plate surface for the fourth color ink
In (Z), the respective halftone dot area ratios of the first element image portion are around 60%, 50%, 50% and 0%, and the respective halftone dot area ratios of the second element image portion are 50%, 40%. %, 40% and around 25%,
The halftone dot area ratio of the third element image part is 50%, 25
%, 55%, and 0%, and the image is formed so that the dot area ratios of the fourth element image portions are 40%, 10%, 40%, and 0%, respectively. Similarly, four types of the first color ink plate surface (W), the second color ink plate surface (X), the third color ink plate surface (Y), and the fourth color ink plate surface (Z) were used in this embodiment. ) Was produced.

Each of the luster corresponding to the first color ink plate surface (W), the second color ink plate surface (X), the third color ink plate surface (Y) and the fourth color ink plate surface (Z). Ink (CRS),
An image (V) is formed by printing the first, second, third and fourth elemental image portions with (MGS), (YBS) and a commercially available black ink according to the image arrangement. ing. The information presented by the image (V) changes the observation angle from the regular reflection light region to the diffused light region with respect to the illumination light source, and the character information "People" (P) to "Country"
It is possible to obtain a genuine / counterfeit discrimination printed matter that changes to character information (Q). That is, at the viewing angle of the regular reflection light region with respect to the illumination light source, the character information (P) "People" displayed by the image (V) is formed from the first and second element image portions. Here, the first element image portion includes a plate surface for the first color ink (W) and a plate surface for the second color ink having the halftone dot area ratio.
(X), it is printed with glittering ink (CRS), (MGS) and (YBS) corresponding to the plate surface (Y) for the third color ink, and the second elemental image part shows the halftone dot area ratio. The glitter ink (CRS), (MGS) corresponding to the plate surface for the first color ink (W), the plate surface for the second color ink (X), and the plate surface for the third color ink (Y)
In addition to (YBS) and (YBS), it is printed with a commercially available black ink corresponding to the plate surface (Z) for the fourth color ink having the above-mentioned halftone dot area ratio. Therefore, at the viewing angle of the specular reflection light region, the color difference ΔE between the first and second element image portions becomes 8 or more, and conversely, at the viewing angle of the diffused light region with respect to the illumination light source, the first and second There is a region where the color difference ΔE of the two-element image portion is 3 or less.

On the other hand, at the viewing angle of the diffused light area, the character information (Q) "country" displayed by the image (V) is displayed.
Are formed from the third and fourth elemental image portions.
Here, the third and fourth elemental image portions have a plate surface for the first color ink (W), a plate surface for the second color ink (X), and a plate surface for the third color ink (Y) having the halftone dot area ratio. It is printed with glittering ink (CRS), (MGS) and (YBS) corresponding to, and the color difference ΔE between the third and fourth elemental image portions is 3 or less at the observation angle of the specular reflection light region, On the contrary, at the viewing angle of the diffused light region, there is a region where the color difference ΔE between the third and fourth elemental image portions is 6 or more.

That is, at the observation angle of the specular reflection light region,
The first elemental image portion is formed only by the third glitter inks (CRS), (MGS) and (YBS) having high light reflectivity, and in comparison to that, the second elemental image portion is , Because it contains commercially available black ink with high light absorption,
When observing in the regular reflection light region, the first and second element image portions are relatively recognized as an image having a visually noticeable difference in lightness. It is possible to predominantly recognize the character information (P) of "people" formed by this remarkable brightness difference. On the contrary, when observed in the diffused light region, the first and second element image portions are observed from the intermediate color between the gloss derived from the silver ink and the red, green and blue color components of the second colored powder. In comparison with the color derived from the additive color mixture, the observed colors derived from the subtractive color mixture of the cyan, magenta, and yellow color components of the first colored powder are dominant, and the colors are visually similar to each other. It becomes difficult to recognize the character information (P) of "people".

At the observation angle of the specular reflection light area,
The third and fourth elemental image portions are formed of only the glitter inks (CRS), (MGS) and (YBS) having high light reflectivity, and when observed in a specular reflection light region, In the fourth elemental image part, the color derived from the additive color mixture observed from the intermediate color between the gloss derived from the silver ink and the red, green, and blue color components of the second colored powder is the first colored powder. It becomes more dominant than the color derived from the subtractive color mixture of cyan, magenta, and yellow color components of the body, and it is visually perceived as colors that are similar to each other, and the character information (Q) of "country" can be recognized. It gets harder. On the contrary, when observing in the diffused light region, the observed color derived from the subtractive color mixture of the cyan, magenta, and yellow color components of the first colored powder becomes dominant in the third and fourth element image portions. , It is visually perceived in different colors, and it becomes easy to recognize the character information (Q) of "country".

Therefore, the plate surface for the first color ink (W), the plate surface for the second color ink (X), the plate surface for the third color ink (Y) and the plate surface for the fourth color ink (Z) having the above-mentioned halftone dot area ratio. ) Corresponding to the brilliant ink (CRS), (MGS), (YBS) and a commercially available black ink are used, and the first, second, third and fourth elemental image portions are arranged alternately. By doing so, the authenticity determination printed matter obtained by the present example having the image (V), by changing the observation angle from the specular reflection light region to the diffused light region, from the character information (P) "People" It visually changes to the character information (Q) of "country."

(Fourth Embodiment) Further, in the original image (21), an image in which the line (A) and the character "Public" (P) are superimposed is displayed on the second element image portion and the line (A). ), The image formed with only the first element image portion, the line (B) and "country"
The image in which the character (Q) is superimposed is the fourth element image portion,
The image formed only by the lines (B) is the third element image portion. The plate surface for the first color ink (W), the plate surface for the second color ink (X), the plate surface for the third color ink (Y), and the plate surface for the fourth color ink
In (Z), the respective halftone dot area ratios of the first element image portion are in the vicinity of 60%, 50%, 50% and 0%, and the respective halftone dot area ratios of the second element image portion are 50%, Around 40%, 40% and 25%, the halftone dot area ratio of each of the third element image parts is set to 50.
%, 25%, 55% and near 0%, and by forming an image so that the dot area ratio of each of the fourth element image parts is near 40%, 10%, 40% and 0%. As in Example 1, four types of the plate surface for the first color ink (W), the plate surface for the second color ink (X), the plate surface for the third color ink (Y) and the fourth color ink used in this embodiment A printing plate (Z) was prepared.

Each of the luster corresponding to the first color ink plate surface (W), the second color ink plate surface (X), the third color ink plate surface (Y) and the fourth color ink plate surface (Z). Ink (CRS),
An image (V) is formed by printing the first, second, third and fourth elemental image portions with (MGS), (YBS) and a commercially available black ink according to the image arrangement. ing. The information presented by the image (V) changes the observation angle from the regular reflection light region to the diffused light region with respect to the illumination light source, and the character information "People" (P) to "Country"
It is possible to obtain a genuine / counterfeit discrimination printed matter that changes to character information (Q). That is, at the viewing angle of the regular reflection light region with respect to the illumination light source, the character information (P) "People" displayed by the image (V) is formed from the first and second element image portions. Here, the first element image portion is formed of a plate surface (W) having the halftone dot area ratio, a plate surface (X), and glitter ink (CRS), (MGS), (YBS) corresponding to the plate surface (Y). Has been printed,
The second element image portion is a printing plate having the halftone dot area ratio.
(W), printing plate (X), and the above-mentioned glitter ink (C
In addition to RS), (MGS) and (YBS), it is printed with a commercially available black ink corresponding to the plate surface (Z) having the halftone dot area ratio. Therefore, at the viewing angle of the specular reflection light region, the color difference ΔE between the first and second element image portions becomes 8 or more, and conversely, at the viewing angle of the diffused light region with respect to the illumination light source, the first and second There is a region where the color difference ΔE of the two-element image portion is 3 or less.

On the other hand, at the observation angle of the diffused light area, the character information (Q) "country" displayed by the image (V) is displayed.
Are formed from the third and fourth elemental image portions.
Here, the third and fourth elemental image portions have a plate surface for the first color ink (W), a plate surface for the second color ink (X), and a plate surface for the third color ink (Y) having the halftone dot area ratio. It is printed with glittering ink (CRS), (MGS) and (YBS) corresponding to, and the color difference ΔE between the third and fourth elemental image portions is 3 or less at the observation angle of the specular reflection light region, On the contrary, at the viewing angle of the diffused light region, there is a region where the color difference ΔE between the third and fourth elemental image portions is 6 or more.

That is, at the observation angle of the specular reflection light region,
The first elemental image portion is formed only by the third glitter inks (CRS), (MGS) and (YBS) having high light reflectivity, and in comparison to that, the second elemental image portion is , Because it contains commercially available black ink with high light absorption,
When observing in the regular reflection light region, the first and second element image portions are relatively recognized as an image having a visually noticeable difference in lightness. It is possible to predominantly recognize the character information (P) of "people" formed by this remarkable brightness difference. On the contrary, when observed in the diffused light region, the first and second element image portions are observed from the intermediate color between the gloss derived from the silver ink and the red, green and blue color components of the second colored powder. In comparison with the color derived from the additive color mixture, the observed colors derived from the subtractive color mixture of the cyan, magenta, and yellow color components of the first colored powder are dominant, and the colors are visually similar to each other. It becomes difficult to recognize the character information (P) of "people".

At the observation angle of the specular reflection light area,
The third and fourth elemental image portions are formed of only the glitter inks (CRS), (MGS) and (YBS) having high light reflectivity, and when observed in a specular reflection light region, In the fourth elemental image part, the color derived from the additive color mixture observed from the intermediate color between the gloss derived from the silver ink and the red, green, and blue color components of the second colored powder is the first colored powder. It becomes more dominant than the color derived from the subtractive color mixture of cyan, magenta, and yellow color components of the body, and it is visually perceived as colors that are similar to each other, and the character information (Q) of "country" can be recognized. It gets harder. On the contrary, when observing in the diffused light region, the observed color derived from the subtractive color mixture of the cyan, magenta, and yellow color components of the first colored powder becomes dominant in the third and fourth element image portions. , It is visually perceived in different colors, and it becomes easy to recognize the character information (Q) of "country".

Therefore, the plate surface for the first color ink (W), the plate surface for the second color ink (X), the plate surface for the third color ink (Y) and the plate surface for the fourth color ink (Z) having the above-mentioned halftone dot area ratio. ) Corresponding to the brilliant ink (CRS), (MGS), (YBS) and a commercially available black ink are used, and the first, second, third and fourth elemental image portions are arranged alternately. By doing so, the authenticity determination printed matter obtained by the present example having the image (V), by changing the observation angle from the specular reflection light region to the diffused light region, from the character information (P) "People" It visually changes to the character information (Q) of "country."

In this embodiment, the plate surface for the first color ink (W), the plate surface for the second color ink (X), which has the above-mentioned dot area ratio,
The first, second, third and fourth elemental image parts formed by the third glitter ink corresponding to the third color ink plate surface (Y) and the fourth ink plate surface (Z) and the commercially available black ink are The basic shape is a straight line with a line width of 0.5 mm, and the pixels forming the basic shape form halftone dots of 175 lines used in general offset printing. However, the element image portion and the pixel of each of the authenticity discrimination printed matter obtained by the present invention are not limited to the images described in the present embodiment. That is, the genuine / counterfeit printed material of the present invention is formed by each elemental image portion composed of arbitrary pixels, and can be applied to all if it is visually observed as an image having a color. . For example, the shape of the pixel can be recognized as a color even if it is composed of fine lines, symbols, or characters. Further, each of the element image portions may have any size and shape other than the straight lines shown in the embodiment.

In the above, the preferred embodiment of the present invention has been described in detail in order to preferably explain the authenticity discrimination printed matter of the present invention. However, the authenticity discrimination printed matter of the present invention is as follows.
The printed matter using the first and second glitter inks is not limited to this, and a true / false discrimination printed matter having the same observation angle dependency can be obtained.

Further, in the present embodiment, the first, second, third and fourth elemental image parts are the plate surface for the first color ink (W), the plate surface for the second color ink (X) and the third color. Ink plate surface (Y) and 4th
It is formed on the four plates of the color ink plate surface (Z), and the first, second, third and fourth element image portions are at least the first color ink plate surface (W) and the second color ink plate surface. (X), using 3 color glitter ink corresponding to the plate surface (Y) for the third color ink,
Further, in the second element image portion, an image is formed by using an ink having high light absorption corresponding to the plate surface (Z) for the fourth color ink, but in the printed matter of the present invention, it is not always necessary. It is not necessary for the four elemental image parts to be composed of four printing plates, and four or more printing plates are used, and even if three or more bright inks corresponding to each printing plate are used, the authenticity determination of the present invention is possible. It is possible to obtain a printed matter.

[0109]

According to the present invention, the first gradation having the above gradation is provided.
A combination of the bright ink and the black ink corresponding to the plate surface for color ink (W), the plate surface for second color ink (X), the plate surface for third color ink (Y) and the plate surface for fourth color ink (Z) The printed matter obtained by the, depending on the viewing angle, it is possible to obtain a holographic effect in which the arbitrary information (P) changes to the completely different arbitrary information (Q), and with a special device and expert appraiser. Even without it, the authenticity can be easily and instantly determined. Further, the anti-counterfeit printed matter having a hologram effect generally requires expensive and special devices and materials, but the printed matter according to the present invention has a cost performance because it applies general materials and manufacturing methods. It is a printed matter that is excellent and has high anti-counterfeiting and authenticity discrimination effects. Further, unlike holograms and the like, since it can be applied to a printing substrate without using a special adhesive or the like, it does not require an additional manufacturing step and has excellent mechanical strength in the distribution process.

Further, in the case of a copy made by a color copying machine, the influence of the color component in the glitter ink becomes dominant, and an image similar to the printed matter observed outside the specular reflection light area is reproduced. , No change in the image is observed even if the angle is changed. Therefore, the genuine / counterfeit printed matter according to the present invention can be copied by a high-performance color copying machine,
It is not possible to reproduce the same angular dependence of color as the original, and at first glance it can be judged as a copy, making it easy to differentiate from the original. Further, because of the glittering ink as described above, as compared with a general solid color ink, a relatively large amount of light from the light source of the copying machine is reflected, so that the color tone of the entire printed matter is completely reproduced. It is not possible.

[Brief description of drawings]

FIG. 1 is a conceptual diagram of a spatial distribution of reflected light.

FIG. 2 is a conceptual diagram of spatial distribution of reflected light.

FIG. 3 is a conceptual diagram of spatial distribution of reflected light.

FIG. 4 is a standard table for evaluating the ΔE.

FIG. 5 shows compositions of three kinds of third glitter ink in this example.

FIG. 6 is a graph showing the relationship between the light receiving angle and L * in the CIE-L * a * b * color system of the solid color developed by the third glitter ink (CRS) and commercially available black ink.

FIG. 7: CIE-L * a * b * color system a * -b of solid color developed by the third glitter ink (CRS) and commercially available black ink
Graph showing *.

FIG. 8 is a graph showing the relationship between L * of the CIE-L * a * b * color system and the light receiving angle in the first and second elemental image portions in the present embodiment.

FIG. 9 is a graph showing the relationship between L * of the CIE-L * a * b * color system and the light receiving angle in the third and fourth elemental image parts in the present embodiment.

FIG. 10 is a graph showing a * -b * of the CIE-L * a * b * color system in the first and second element image parts in the present embodiment.

FIG. 11 is a graph showing a * -b * of the CIE-L * a * b * color system in the third and fourth element image parts in the present embodiment.

FIG. 12 is a table showing the values of the color difference ΔE of the first and second element image portions and the arbitrary third and fourth element image portions for each observation angle in the present embodiment.

FIG. 13 is a plate surface (W) for the first color ink in the present embodiment,
Schematic drawing of the original image (13) of the plate surface (X) for the second color ink, the plate surface (Y) for the third color ink, and the plate surface (Z) for the fourth color ink.

FIG. 14 shows an enlarged view of the circled portion (14) of FIG.

FIG. 15 is a plate surface (W) for the first color ink in this example,
The plate surface for the second color ink (X), the plate surface for the third color ink (Y) and the plate surface for the fourth color ink (Z) are shown.

FIG. 16 is an external view of a genuine / counterfeit printed matter according to the present embodiment.

FIG. 17 is an external view observed in a specular reflection light region and a diffused light region of the authenticity determination printed material in this example.

[Explanation of symbols]

V Image in the present invention P Information recognized when the image (V) is observed in a specular light region Q Information recognized when the image (V) is observed in a diffuse light region W In the printed matter of the present invention Plate surface corresponding to the brilliant ink used X Plate surface corresponding to the brilliant ink used for printed matter in the present invention Y Plate surface corresponding to the brilliant ink used for printed matter in the present invention Z Light absorbency used for printed matter in the present invention Corresponding to high-ink ink Plate A Line width 0.5 mm Linear line B Line width 0.5 mm Linear line (a) Solid color developed by the third glitter ink (CRS) (b) Commercial black Solid printed matter with ink 1 Printed image surface 1-a formed with glittering colored ink 1-b Printed image surface formed with glittering colored ink 1-b Printed image surface 1 formed with glittering colored ink 1 -c formed by glittering colored ink Printed image side 2 Illumination light source 3 Surface reflection 3-a Surface reflection 3-b Surface reflection 3-c Surface reflection 3-d Surface reflection 4 In-layer reflection 4-a In-layer reflection 4-b In-layer reflection 4-c In-layer Reflection 4-d Intra-layer reflection 5 Printed image surface formed by the glittering color ink and the ink having high light absorbing property 6 L of solid color developed by the third glittering ink (CRS) (a)
* Measurement result of * 7 L * measurement result of solid-colored product (a) with commercially available black ink 8 A of solid-colored product (a) with third bright ink (CRS)
* -b * measurement result 9 a * -b * measurement result at a light-receiving angle of 45 ° 10 a * -b of a solid color development product (a) using a commercially available black ink
* Measurement result of * 11 Measurement result of lightness L * of the first element image part in this embodiment 12 Measurement result of lightness L * of the second element image part in this embodiment 13 Lightness of the third element image part in this embodiment Measurement result of L * 14 Measurement result of lightness L * of the fourth elemental image portion in the present embodiment 15 Measurement result of a * -b * at an acceptance angle of 45 ° 16 a *-of the first elemental image portion in the present embodiment b * measurement result 17 a * -b * measurement result of the second element image portion in this embodiment 18 a * -b * measurement result of the third element image portion in this embodiment 19 4th embodiment Measurement result of a * -b * in the element image part 20 Measurement result of a * -b * in the diffused light region 21 of the plate surface (W), the plate surface (X), the plate surface (Y), and the plate surface (Z) in this example. Schematic of the original image 22 Part of the image formed by the straight lines (A) and (B) in the schematic diagram (13) 23 Straight lines Squares formed by the lines (A) and (B) 24 Straight lines Formed by lines (A) and (B) Square diagonal line 25 Intersection point of square diagonal lines formed by straight lines (A) and (B) 26 Printing base material 27 Authenticity discrimination printed matter in this embodiment 28 Authenticity discrimination printed matter in this embodiment is specularly reflected light Appearance when observed in area 29 Appearance when genuine / counterfeit printed matter in this example is observed in diffused light area

Continuation of the front page (56) Reference JP-A-9-254520 (JP, A) JP-A-8-324169 (JP, A) JP-A-8-142490 (JP, A) JP-A-3-266684 (JP , A) JP-A-9-267592 (JP, A) JP-A-9-240134 (JP, A) JP-A-7-40645 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB) (Name) B41M 3/14 B41M 3/00 B42D 15/10 501

Claims (22)

(57) [Claims] 1. A first, a second, a third and a fourth elemental image portion having mutually different gradations are formed on a substrate, and the first, third and fourth elemental image portions are respectively at least formed. A glitter ink is used, and at least the second element image portion forms an image portion using ink having a high light absorption property, and the relationship between the colors of the first and second element image portions is an illumination light source. On the other hand, when observing in the specular reflection light area, different colors are obtained, and the arbitrary information (P) is recognized, and when observing in the diffused light area with the illumination light source, there is a relation of equal color or almost equal color, and the arbitrary information (P) is not recognized, and the relationship between the colors of the third and fourth elemental image portions does not have a relationship of being equal to or substantially equal to the color when observing in the specular reflection light region, and another arbitrary information (Q ) Is not recognized, resulting in different colors when observing in the diffuse light area. Optional information (Q) is recognized ,
An image (V) is formed by arbitrarily arranging the first, second, third, and fourth elemental image parts alternately, and the observation angle is changed from the regular reflection light region to the diffused light region with respect to the illumination light source. At the same time, the information presented by the image (V) changes from the arbitrary information (P) to another arbitrary information (Q). 2. The first element image portion is at least a first portion.
It is composed by combining images formed on the plate surface for color ink (W), the plate surface for second color ink (X), and the plate surface for third color ink (Y), and the second element image portion is at least It is composed by combining the images formed on the plate surface for 1 color ink (W), the plate surface for 2nd color ink (X), the plate surface for 3rd color ink (Y) and the plate surface for 4th color ink (Z). The third element image portion is configured by combining at least images formed on the first color ink plate surface (W), the second color ink plate surface (X), and the third color ink plate surface (Y). And the fourth element image portion is formed by combining images formed on at least the first color ink plate surface (W), the second color ink plate surface (X), and the third color ink plate surface (Y). The authenticity / fake discriminating printed matter according to claim 1, which is configured. 3. The first, third, and fourth elemental image parts,
The glitter ink corresponding to at least the first color ink plate surface (W), the second color ink plate surface (X), and the third color ink plate surface (Y) is used, and the second element image portion is The authenticity / fake discriminating printed matter according to claim 1 or 2, wherein an image is formed by using an ink having a high light absorption property corresponding to at least the plate surface (Z) for the fourth color ink. 4. The first, second, third, and fourth elemental image portions have at least a first color ink plate surface (W), a second color ink plate surface (X), and a third color ink plate surface ( Y) three-color glitter ink is used, and further, the second element image portion uses an image having high light-absorption ink corresponding to the fourth color ink plate surface (Z). The authenticity discrimination printed matter according to claim 1, 2 or 3, wherein the printed matter is formed. 5. The first, second, third, and fourth elemental image portions are configured by pixels of an arbitrary shape to express colors, respectively. Three
Alternatively, the authenticity discrimination printed matter according to 4. 6. The genuine / counterfeit discrimination printed matter according to claim 1, wherein the pixels are halftone dots. 7. The color of the glitter ink corresponding to the first color ink plate surface (W), the second color ink plate surface (X) and the third color ink plate surface (Y) is cyan, respectively. 7. The genuine / counterfeit printed matter according to claim 1, 2, 3, 4, 5 or 6, wherein the printed matter is magenta or yellow based glitter ink. 8. The color of the first and second elemental image portions is grayish, and the color of the first, second, and third elements is gray.
The authenticity / fake discriminating printed matter according to 4, 5, 6 or 7. 9. The ink having a high light absorbing property corresponding to the plate surface (Z) for the fourth color ink is black or black color. Alternatively, the authenticity printed matter according to item 8. 10. The first in the first elemental image portion
The halftone dot area ratios of the color ink plate surface (W), the second color ink plate surface (X), the third color ink plate surface (Y) and the fourth color ink plate surface (Z) are 60% and 50%, respectively. , 50% and 0%, and the second
The plate surface (W) for the first color ink in the elemental image part, the second
50%, 40%, 40% halftone dot area ratio of each of the plate surface for color ink (X), the plate surface for third color ink (Y) and the plate surface for fourth color ink (Z)
And about 20%, and the plate surface for the first color ink (W), the plate surface for the second color ink (X), the third in the third element image portion.
The halftone dot area ratios of the color ink plate surface (Y) and the fourth color ink plate surface (Z) are near 50%, 25%, 55%, and 0%, respectively, and the first in the fourth element image portion. Plate surface for color ink (W),
The halftone dot area ratio of the second color ink plate surface (X), the third color ink plate surface (Y) and the fourth color ink plate surface (Z) is 40%, 10
%, 40% and near 0%.
The authenticity / fake discrimination printed matter according to 2, 3, 4, 5, 6, 7, 8 or 9. 11. The color difference ΔE between the first and second elemental image portions is 3 or more, particularly preferably 6 or more at the viewing angle of the regular reflection light region with respect to the illumination light source. The color difference ΔE of the four-element image portion is 3 or less, and at the observation angle of the diffused light region with respect to the illumination light source, the first and second
The color difference ΔE of the elemental image portion is 3 or less, and the third
And the color difference ΔE of the fourth element image portion is 3 or more, particularly preferably 6 or more.
The authenticity / fake discrimination printed matter according to 5, 6, 7, 8, 9 or 10. 12. The first and second elemental image portions have arbitrary shapes, form an informational image portion and a background image portion of the arbitrary information (P), and the third and fourth elemental image portions have arbitrary shapes. A shape is shown, an information image part and a background image part of the other arbitrary information (Q) are formed, and the first, second, third and fourth elemental image parts are presented depending on the observation angle. The arbitrary information (P) and the other arbitrary information (Q) that are generated are arranged so that they can be sufficiently recognized as an image. The authenticity discrimination printed matter according to 7, 8, 9, 10 or 11. 13. The first and second elemental image portions have a line shape and are alternately adjacent to each other to form an information image portion and a background image portion of the arbitrary information (P), and The 3rd and 4th element image parts show a line shape, and by adjoining alternately, the information image part and the background image part of the other arbitrary information (Q) are formed, and the information image of the arbitrary information (P) is formed. Parts, background image parts, and information image parts and background image parts of the other arbitrary information (Q) are alternately arranged. , 8, 9, 10, 11 or 12, the authenticity / fake discriminating printed matter. 14. In the image (V), the first element image portion is an information image portion of the arbitrary information (P), the second element image portion is a background image portion of the arbitrary information (P), and,
2. The third element image part is an information image part of the other arbitrary information (Q), and the fourth element image part is a background image part of the other arbitrary information (Q). 2, 3, 4,
The authenticity discrimination printed matter according to 5, 6, 7, 8, 9, 10, 11, 12 or 13. 15. In the image (V), the first element image portion is a background image portion of the arbitrary information (P), and the second element image portion is an information image portion of the arbitrary information (P), and,
2. The third element image part is an information image part of the other arbitrary information (Q), and the fourth element image part is a background image part of the other arbitrary information (Q). 2, 3, 4,
The authenticity discrimination printed matter according to 5, 6, 7, 8, 9, 10, 11, 12 or 13. 16. In the image (V), the first element image portion is an information image portion of the arbitrary information (P), and the second element image portion is a background image portion of the other arbitrary information (P). And the third element image part is a background image part of the other arbitrary information (Q), and the fourth element image part is an information image part of the other arbitrary information (Q). Claims 1, 2, 3,
The authenticity / fake discriminating printed matter according to 4, 5, 6, 7, 8, 9, 10, 11, 12 or 13. 17. In the image (V), the first element image portion is a background image of the arbitrary information (P), the second element image portion is an information image portion of the arbitrary information (P), and The third element image portion is a background image portion of the other arbitrary information (Q), and the fourth element image portion is an information image portion of the other arbitrary information (Q). 2, 3, 4,
The authenticity discrimination printed matter according to 5, 6, 7, 8, 9, 10, 11, 12 or 13. 18. The plate surface (W) for the first color ink, the plate surface (X) for the second color ink, and the third plate in the authenticity printed matter.
7. The bright ink corresponding to the plate surface (Y) for color ink is a first bright ink containing at least bright powder, respectively. ,
7, 8, 9, 10, 11, 12, 13, 14, 15, 1
The authenticity discrimination printed matter according to 6 or 17. 19. In the authenticity / fake printed matter, the plate surface (W) for the first color ink, the plate surface (X) for the second color ink, and the third plate
2. The glitter ink corresponding to the plate surface (Y) for color ink is a second glitter ink containing at least a first colored powder and a glitter powder, respectively.
2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12,
The authenticity / fake discrimination printed matter according to 13, 14, 15, 16, 17 or 18. 20. In the genuine / counterfeit printed matter, the plate surface (W) for the first color ink, the plate surface (X) for the second color ink, and the third plate
The glitter ink corresponding to the plate surface (Y) for color ink contains at least a first colored powder, a second colored powder having a particle diameter relatively smaller than that of the first colored powder, and the glitter powder. A third glitter ink, wherein
2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12,
The authenticity discrimination printed matter according to 13, 14, 15, 16, 17, 18 or 19. 21. The color of the second colored powder is the first color.
The colored powder and the colored powder have a complementary color relationship with each other.
The authenticity / fake discrimination printed matter according to 2, 13, 14, 15, 16, 17 or 20. 22. The glittering powder is a metallic luster powder having specular reflection, in particular.
2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12,
The authenticity discrimination printed matter according to 13, 14, 15, 16, 17, 18, 19, 20, or 21.