JP4595068B2 - Authentic printed material - Google Patents

Description

The present invention relates to a printed matter in which a latent image is embedded and formed by a line drawing line and capable of authenticating authenticity.

Anti-counterfeiting technology has been applied to valuable items such as banknotes, passports, securities, cards, stamps, product tags, toll road tickets, and various tickets. Therefore, a special print pattern is applied to such valuables. By overlaying a discriminator consisting of a line filter and a discriminator consisting of a lenticular lens on the printed pattern, the latent image can be visually recognized and verified. Discrimination is made.

For example, as a technology for discriminating authenticity with a discriminator consisting of a line filter, a background image portion printed with a line drawing line and a latent image portion with a line drawing angle with a different line angle from the background image portion are printed. At first glance, the background image portion and the latent image portion are difficult to see separately, but when the line filter is observed with a predetermined angle superimposed on the printed matter, the background image portion and the latent image portion are separated. A technique that can be visually recognized after being classified is known (see Patent Document 1).
JP-A-53-28443 (Page 1-5, Figure 1-7)

In the copy prevention printed matter such as JP-A-8-197828, JP-A-8-300800, JP-A-57-20397, JP-A-2000-185457, a latent image can be visually recognized when copied. It is also known that a latent image is visually recognized by superimposing discriminating tools made of lenticular lenses.

As a technique for discriminating authenticity with a discriminator comprising a lenticular lens, n is a predetermined integer of 2 or more, a band is formed by first to n bands arranged in parallel in the order of 1 to n, and a plurality of them are arranged in parallel A printed material for forming an image with the band of the image, wherein two of the first to n bands are selected as bands to exclusively paste the area corresponding to the band of the first predetermined image, and the outline of the hidden image is selected. Printed material in which a hidden image is made visible by superimposing a lenticular lens on a printed material on which an image formed by changing the pasting band from the selected one band to the other band is printed Is disclosed (see Patent Document 2).
JP 2003-094790 A (Pages 1-8, FIGS. 1-7)

However, in Japanese Patent Laid-Open No. 53-28443, when embedding two latent image images, the line angle of each latent image must be changed, so that the latent image can be visually recognized without overlapping the discriminating tool. In addition, when the discriminating tools are overlapped, the lines where at least a part of the two latent image images overlap each other overlap the lines forming the latent image (Patent Document 1 FIG. 5). In the visibility of the first latent image, the areas where the first latent image and the second latent image overlap each other and the density of the first latent image that does not overlap are non-uniform. Similarly, in the visibility of the second latent image, in the visibility of the second latent image, the area where the first latent image and the second latent image overlap each other and the density of the second latent image that does not overlap Appears as a non-uniform image. The visibility of the poor, was not authenticity discrimination characteristics is excellent. Further, in the printed matter described in Japanese Patent Application Laid-Open No. 2003-094790, when two latent image images are embedded, the latent image images must be formed in different areas, and at least a part of the two latent image images. It was impossible to overlap each other.

In view of the above, the present invention has been made to solve the above-mentioned problems, and is a printed matter formed by parallel lines, in which two latent image images are embedded, and the two latent images The image can be formed even if at least part of the images overlap each other, and when the lenticular lens or the line filter is overlapped, the first latent image and the second latent image are visible in terms of visibility of the first latent image. The areas where the latent image overlaps each other and the first latent image that does not overlap are visually recognized with a uniform density. Similarly, in terms of the visibility of the second latent image, the first latent image And the second latent image are overlapped with each other, and the second latent image that does not overlap is visually recognized with a uniform density, so that the latent image is highly visible and has excellent authenticity characteristics. In addition, duplicates copied with a copying machine In the image portion, the first latent image pattern forming image line or the second latent image pattern forming image line is formed by the copy prevention image line, so that it cannot be reproduced, the latent image appears, and the copy prevention effect is obtained. Have. The present invention proposes the above-described printed matter capable of authenticating authenticity.

In the present invention, a pattern is formed on a substrate by a line drawing line, the pattern is divided into a region where a latent image pattern is not applied and a region where a latent image pattern is applied, and the region where the latent image is not applied is constituted by a solid line In the latent image pattern, a line having a predetermined width among the line widths of the line drawing lines is constituted by a latent image pattern forming drawing line, and the latent image pattern forming drawing line is not subjected to the latent image. It is a printed matter that can be determined whether the area is shifted from the solid line.

In the present invention, a pattern is formed on a substrate by a line drawing line, and the pattern includes a region where a latent image pattern is not applied, a region where a first latent image pattern is applied, and a region where a second latent image pattern is applied. The region where the latent image is not applied is configured by a solid line, and the first latent image pattern includes a first image line having a predetermined width among the line widths of the line image lines. The first latent image pattern forming image line is arranged by shifting a region where the latent image is not applied from a solid line, and the second latent image pattern is formed of the line image forming image line. Among the image line widths, a second image line having a predetermined width is constituted by a second latent image pattern forming image line, and the second latent image pattern forming image line is the first latent image pattern forming image line. It is a printed matter that can be determined whether it is authentic or not, and is shifted in a direction different from the shifted direction.

In the present invention, a pattern is formed on the substrate by a line drawing line, and the pattern includes a region where a latent image pattern is not applied, a region where a first latent image pattern is applied, and a region where a second latent image pattern is applied. And a region where the first and second latent image patterns are overlapped, a region where the latent image is not applied is constituted by a solid line, and a region where the first and second latent image patterns overlap is also included. In the first latent image pattern, a first image line having a predetermined width among the image line widths of the line image lines is constituted by a first latent image pattern forming image line, and the first latent image pattern is formed. The pattern forming image line is arranged by shifting a region where the latent image is not applied from the solid line, and the second latent image pattern is a second image line having a predetermined width within the line width of the line image line. The second latent image pattern forming image line is configured to be shifted in a direction different from the shifted direction of the first latent image pattern forming image line. It is authenticity discrimination possible printed matter formed by.

Further, the present invention provides an image area of a portion corresponding to a predetermined length in the basic line direction of the first latent image pattern forming image line and a first portion of a portion corresponding to the same length as the predetermined length. The sum of the image areas of the two image lines is the same as the image area of the portion corresponding to the same length as the predetermined length in the basic line direction among the solid lines where the latent image is not applied. The image area of a portion corresponding to a predetermined length in the basic line direction of the second latent image pattern forming image line, and the first image line of a portion corresponding to the same length as the predetermined length. The total sum of the image area is the same as the image area of the portion corresponding to the same length as the predetermined length in the basic line direction among the solid lines where the latent image is not applied. A portion corresponding to a predetermined length in the basic line direction of the latent image pattern forming image line and the second latent image pattern forming image line The sum of the image line areas is the same as the image area of the part corresponding to the same length as the predetermined length in the basic line direction among the solid lines where the latent image is not applied. This is a distinguishable printed material.

In the present invention, a pattern is formed on the substrate by a line drawing line, and the pattern includes a region where a latent image pattern is not applied, a region where a first latent image pattern is applied, and a region where a second latent image pattern is applied. And a region where the first and second latent image patterns are overlapped, a region where the latent image is not applied is constituted by a solid line, and a region where the first and second latent image patterns overlap is also included. In the first latent image pattern, an image line having a predetermined width among the image line widths of the line image lines is constituted by the first latent image pattern forming image line, and the first latent image pattern forming image is formed. The line is arranged by shifting the area where the latent image is not applied from the solid line, and the second latent image pattern forming image line is shifted in a direction different from the shifted direction of the first latent image pattern forming image line. The region where the first and second latent image patterns overlap is disposed between the first latent image pattern forming image line and the second latent image pattern forming image line. Streaked is authenticity discrimination possible prints made is located.

Further, the present invention provides an image area of a portion corresponding to a predetermined length in the basic line direction of the first latent image pattern forming image line and a first portion of a portion corresponding to the same length as the predetermined length. The sum of the image areas of the two image lines is the same as the image area of the portion corresponding to the same length as the predetermined length in the basic line direction among the solid lines where the latent image is not applied. The image area of a portion corresponding to a predetermined length in the basic line direction of the second latent image pattern forming image line, and the first image line of a portion corresponding to the same length as the predetermined length. The total sum of the image area is the same as the image area of the portion corresponding to the same length as the predetermined length in the basic line direction among the solid lines where the latent image is not applied. A portion corresponding to a predetermined length in the basic line direction of the latent image pattern forming image line and the second latent image pattern forming image line The sum of the image line area and the image line area of the central image line corresponding to the same length as the predetermined length is the predetermined line in the basic line direction among the solid lines of the part where the latent image is not applied. It is a printed matter that can be determined whether it is true or false, and has the same image area as that of the portion corresponding to the same length.

Further, according to the present invention, the latent image pattern forming image line, the first latent image pattern forming image line, and the second latent image pattern forming image line are arranged such that pixels and non-pixel portions are arranged at a constant interval. It is a printed matter capable of authenticating authenticity consisting of at least one of a periodic cut-off line, a branched image line branched from an image line where no latent image is applied, and a zigzag-shaped image line.

  The first latent image is visually recognized when the lenticular lens or the line filter is superposed in the first state on the printed matter of the present invention, and the second latent image is obtained when the superposed image is observed in the second state. Since a different latent image can be seen by changing the position or angle at which the printed material and the lenticular lens or line filter are overlapped, it is possible to determine whether the printed material is genuine or not. . Therefore, the present invention can be applied to valuable items such as banknotes, passports, securities, cards, stamps, product tags, toll road tickets, and various tickets.

In addition, when a lenticular lens or a line filter is overlaid on the printed matter of the present invention, in the visibility of the first latent image, the first latent image and the second latent image are overlapped with each other. The first latent image that is not overlapped is visually recognized with a uniform density. Similarly, in the visibility of the second latent image, the first latent image and the second latent image overlap each other. Since the density of the second latent image that does not overlap with the overlapping area is visually recognized, the visibility of the latent image is good and the authenticity determination characteristic is excellent.

In addition, the copy copied by the copying machine cannot be reproduced because the latent image portion is formed with the first latent image pattern forming image line or the second latent image pattern forming image line with the copy preventing image line. A latent image appears and has an effect of preventing copying.

The best mode for carrying out the present invention will be described with reference to the drawings. However, the present invention is not limited to the best mode for carrying out the invention described below, and includes various other embodiments within the scope of the technical idea described in the scope of claims. The basic lines described below are described for explaining the present invention, and are not printed on an actual printed matter.

The first latent image pattern forming image line or the second latent image pattern forming image line forming the printed matter capable of authenticating authenticity according to the present invention has a periodic break line in which pixels and non-pixel portions are arranged at a constant interval. The image can be formed from at least one of a branched image drawn from the image of the portion where the latent image is not applied, and a zigzag-shaped image. In the best mode for carrying out the invention, This will be described in detail.

As shown in FIG. 1, the pattern 1 composed of straight lines is divided into a background image 2, a first latent image pattern 3 (English letter P), and a second latent image pattern 4 (English letter B). In FIG. 1, a pattern 1 is formed by a plurality of straight lines, and the pattern 1 is divided into a background image 2 and a latent image 3. As shown in FIG. 2, which is an enlarged view of the area A in FIG. 1, the image line 5 that becomes the background image 2 of the portion where no latent image is applied is a solid line 6, and the first latent image pattern 3 is the image line 5. An upper image area 7a that is ½ or less of the image line width A is defined as a first constant in which pixels 10a and non-pixel portions 11a having a predetermined shape are arranged at a constant interval B with respect to the direction of the basic line 9. It consists of a periodic disconnection line 8a. Further, as shown in FIG. 3, a predetermined length F1 (here, one cycle corresponding to the fixed periodic disconnection line) composed of pixels 10a and non-pixel portions 11a continuous in the direction of the basic line 9 of the first fixed periodic disconnection line 8a. ) The portion corresponding to the same length F2 as the predetermined length F1 in the direction of the basic line 9 among the solid lines 6 where the latent image is not applied is the sum of the image area (C1, D1) of the portion corresponding to The image area (G) is the same (including almost the same). In the drawing, the pixel width in the direction perpendicular to the basic line direction of the pixel 10a of the first periodic break line 8a needs to be about the length H / 8 of the lower image area 7b. This is because there are eight pixels 10a of the first fixed periodic break line 8a. In the drawing, the pixel width in the basic line direction of the pixel 10 a of the first fixed-cycle break line 8 a needs to be about the image line width A / 2 of the image line 5. Here, “substantially the same” means a range in which the image area (G) is about 95 to 110% when the sum of the image areas (C1, D1) is 100%. If it is 95% or less or 110% or more, the background image 2 and the latent image 3 may be separated and visually recognized when the discriminator is not overlapped. The width in the horizontal direction and / or the vertical direction of the pixel 10a is difficult to recognize with the naked eye, and may be set to about 25 μm to 64 μm that cannot be reproduced by the copying machine. The image line width A may be set to be larger than 64 μm and smaller than 130 μm.

As shown in FIG. 4, which is a magnified view of the area B in FIG. 1, the second latent image pattern 4 includes a lower line area 7 b that is equal to or less than ½ of the line width A of the image line 5. With reference to the nine directions, a pixel 10b having a predetermined shape and a non-pixel portion 11b are configured by a second fixed periodic break line 8b arranged at a constant interval B. Further, as shown in FIG. 5, a predetermined length F1 (here, one cycle corresponding to the fixed periodic disconnection line) composed of pixels 10b and non-pixel portions 11b continuous in the direction of the basic line 9 of the second fixed periodic disconnection line 8b. ) The portion corresponding to the length F2 that is the same as the predetermined length F1 in the direction of the basic line 9 among the solid lines 6 where the latent image is not applied. The image area (G) is the same (including almost the same). In the drawing, the pixel width in the direction perpendicular to the basic line direction of the pixel 10b of the second periodic break line 8b needs to be about the length H / 8 of the upper image area 7a. This is because there are eight pixels 10b of the second periodic break line 8b. In the drawing, the pixel width in the basic line direction of the pixel 10b of the second fixed periodic break line 8b needs to be about the image line width A / 2 of the image line 5. Here, “substantially the same” refers to a range where the image area (G) is about 95 to 110% when the sum of the image areas (C2, D2) is 100%. If it is 95% or less or 110% or more, the background image 2 and the latent image 3 may be separated and visually recognized when the discriminator is not overlapped. The width in the horizontal direction and / or the vertical direction of the pixel 10b may be set to about 25 μm to 64 μm which is difficult to recognize with the naked eye and difficult to reproduce with the copying machine. The image line width A may be set to be larger than 64 μm and smaller than 130 μm.

Next, an image line in a region where the first latent image pattern 3 and the second latent image pattern 4 overlap will be described. As shown in FIG. 6, which is an enlarged view of the area C in FIG. 1, the image line 5 that becomes the background image 2 of the portion where no latent image is applied is the solid line 6, and the first latent image pattern 3 is the image line 5. An upper image area 7a that is ½ or less of the image line width A is defined as a first constant in which pixels 10a and non-pixel portions 11a having a predetermined shape are arranged at a constant interval B with respect to the direction of the basic line 9. The second latent image pattern 4 is composed of a periodic break line 8a, and the lower latent image area 7b of 1/2 or less of the image line width A of the image line 5 has a predetermined shape with respect to the direction of the basic line 9. The pixel 10b and the non-pixel portion 11b are configured by a second fixed periodic break line 8b arranged at a constant interval B. Further, as shown in FIG. 7, a predetermined consisting of a pixel 10a, a non-pixel portion 11a, a pixel 10b, and a non-pixel portion 11b that are continuous in the direction of the basic line 9 of the first constant periodic disconnection line 8a and the second constant periodic disconnection line 8b. The sum of the image area (C1, C2) corresponding to the length F1 (here, one period corresponding to the fixed periodic break line) is the basic line 9 among the solid lines 6 where the latent image is not applied. It is configured to have the same area (G) as that of the portion corresponding to the same length F2 as the predetermined length F1 in the direction (including substantially the same). In the drawing, the pixel width in the direction perpendicular to the basic line direction of the pixel 10a of the first periodic break line 8a needs to be about the length H / 8 of the lower image area 7b. This is because there are eight pixels 10a of the first fixed periodic break line 8a. In the drawing, the pixel width in the basic line direction of the pixel 10 a of the first fixed-cycle break line 8 a needs to be about the image line width A / 2 of the image line 5. Similarly, in the drawing, the pixel width in the direction perpendicular to the basic line direction of the pixel 10b of the second fixed periodic break line 8b needs to be about the length H / 8 of the upper image area 7a. This is because there are eight pixels 10b of the second periodic break line 8b. In the drawing, the pixel width in the basic line direction of the pixel 10b of the second fixed periodic break line 8b needs to be about the image line width A / 2 of the image line 5. Here, “substantially the same” refers to a range where the image area (G) is about 95 to 110% when the sum of the image areas (C1, C2) is 100%. If it is 95% or less or 110% or more, the background image 2 and the latent image 3 may be separated and visually recognized when the discriminator is not overlapped. The horizontal and / or vertical widths of the pixels 10a and 10b may be set to about 25 μm to 64 μm that are difficult to recognize with the naked eye and difficult to reproduce with a copying machine. The image line width A may be set to be larger than 64 μm and smaller than 130 μm.

In the above description, since the pattern 1 composed of the straight line-drawing lines has a horizontal drawing line configuration, the first latent image is applied to the upper drawing area 7 a that is ½ or less of the drawing width A of the drawing line 5. An image is applied, and a second latent image is applied to the lower image area 7 b that is ½ or less of the image line width A of the image line 5. In this case, the first latent image is applied to the lower image area 7b of ½ or less of the image line width A of the image line 5 and is ½ or less of the image line width A of the image line 5. A second latent image may be applied to the upper image area 7a. Further, in the case where the pattern 1 composed of straight line drawing lines has a vertical drawing line configuration, the first latent image is applied to one of the right or left drawing area that is ½ or less of the drawing line width A of the drawing line. An image image may be applied, and the second latent image may be applied to the other of the right or left image area that is ½ or less of the image line width A of the image line. When a latent image is applied to a pattern composed of curved lines (including concentric lines), the direction of the first line area that is 1/2 or less of the line width A of the line changes (for example, from above). Left, bottom to right, top to left, and bottom to right) Therefore, the direction of the area to be selected differs depending on the image line configuration of the pattern, and the first latent image is applied to the first image area that is ½ or less of the line width A. The second latent image may be applied to the second image area that is ½ or less of the line width A.

The pixel 10a of the first constant periodic break line 8a and the pixel 10b of the second constant periodic break line 8b are a non-drawing area (an upper non-drawing area 14 or a lower non-drawing area 14) having the pitch of the drawing line forming the pattern 1. It must protrude into the line area 15). When a latent image is applied to a pattern composed of curved lines (including concentric lines), the direction of the first line area that is 1/2 or less of the line width A of the line changes (for example, from above). Left, bottom to right, top to left, and bottom to right) Therefore, the area to which the first latent image pattern is applied is the first line area that is not more than ½ of the line width of the straight line line and / or the curved line line (including concentric lines). The first non-image area shifted in the direction perpendicular to the direction is composed of the pixels 10a of the first fixed periodic break line 8a, and the area where the second latent image pattern is applied is a straight line image and / or The second image area that is 1/2 or less of the image line width of the curved line image (including concentric lines) is shifted to the second non-image area in a direction perpendicular to the basic line direction, What is necessary is just to comprise by the pixel 10b of the fixed-cycle break line 8b. For example, when the pattern 1 is formed with an image line of 100 μm and a non-image area of 200 μm and a pitch of 300 μm, the pixel 10a of the first fixed periodic break line 8a and the pixel 10b of the second constant periodic break line 8b are It is necessary that at least a part of the pixels be formed in a region where the non-image portion is 200 μm.

As shown in FIG. 8, when the printed matter A1 that can be detected as authenticity is observed with the naked eye under visible light, the pattern 1 is a background image 2, the first latent image pattern 3, Although it is divided into the second latent image pattern 4, the background image 2, the first latent image pattern 3 and the second latent image pattern 4 cannot be divided and visually recognized with the naked eye. As shown in FIGS. 3, 5 and 7, this is a predetermined length F <b> 1 (here, a constant period) consisting of a pixel 10 a and a non-pixel portion 11 a that are continuous in the basic line 9 direction of the first constant period disconnect line 8 a. The sum of the image area (C1, D1) corresponding to the portion corresponding to the broken line is the same as the predetermined length F1 in the basic line 9 direction of the solid line 6 where the latent image is not applied. Consists of the same (including almost the same) image area (G) of the portion corresponding to the length F2. An image of a portion corresponding to a predetermined length F1 (here, one cycle corresponding to a fixed periodic disconnection line) composed of pixels 10b and non-pixel portions 11b continuous in the direction of the basic line 9 of the second fixed periodic disconnection line 8b. Image area (G) of the portion corresponding to the same length F2 as the predetermined length F1 in the direction of the basic line 9 in the solid line 6 where the total of the line areas (C2, D2) is not applied. And the same (including almost the same). In addition, a predetermined length composed of a pixel 10a, a non-pixel portion 11a, a pixel 10b, and a non-pixel portion 11b that are continuous in the direction of the basic line 9 of the first constant periodic disconnection line 8a and the second constant periodic disconnection line 8b. The sum of the image area (C1, C2) of the portion corresponding to F1 (here, one cycle corresponding to the fixed periodic break line) is a predetermined value in the direction of the basic line 9 among the solid lines 6 where the latent image is not applied. The same area (G) as that of the portion corresponding to the same length F2 as the length F1 (including substantially the same). Since these conditions and the pixel line widths of the pixels 10a and 10b of the first and second periodic break lines 8a and 8b are formed within a range of about 25 μm to 64 μm, the individual pixels are visually observed. Is difficult to identify and is visible with a single line. For these reasons, the pattern 1 cannot be visually recognized by dividing the background image 2, the first latent image pattern 3, and the second latent image pattern 4. Therefore, only the pattern 1 is visible.

When the lenticular lens (L) in which a plurality of rod-shaped lenses as shown in FIG. 9 are arranged as a single line is superimposed on the printed matter A1 that can be authenticated, and observed with the naked eye under visible light, When superimposed in the first state as shown in FIG. 10, the first latent image pattern 3 is visually recognized. When superimposed in the second state as shown in FIG. Visible. An example in which the printed matter A1 capable of authenticating authenticity is printed in, for example, a cyan color will be described. In this case, it is preferable that the pitch of the plurality of image lines forming the printed material A1 capable of authenticity determination and the pitch of the lenticular lens (L) are the same (including substantially the same). When superposed in the first state as shown in FIG. 10, that is, when the lenticular lens (L) is superposed on the basic line 9 at an angle of 0 °, the first latent image pattern 3 Is visually recognized as cyan, and the background image 2 is visually recognized as dark cyan and / or a background color (for example, paper or plastic). This is visually recognized as a dark cyan color because the image line 5 forming the background image 2 is enlarged and the image line 5 is visually recognized. Further, the non-image portion 12 of the image line 5 is enlarged, and the background color is visually recognized. The pixels 10a and the non-pixel portions 11a that form the first latent image pattern 3 are not enlarged, and thus are visually recognized as cyan. Therefore, the first latent image pattern 3 is visually recognized by the color difference between the background image 2 and the first latent image pattern 3. In addition, the latent image can be visually recognized even when an auxiliary tool on which lines are printed is superimposed on the transparent film.

Further, when superposed in the second state as shown in FIG. 11, that is, the lenticular lens (L) is superposed on the basic line 9 at an angle of 0 °, and superposed in the first state. The second latent image pattern 4 is visually recognized as cyan when shifted by a half pitch T from the case, and the background image 2 is visually recognized as dark cyan and / or the background color (for example, paper or plastic color). Is done. This is because the image line width of the image line forming the background image 2 is enlarged as the image line 5 is enlarged, and the image line 5 is visually recognized, so that it is visually recognized as a dark cyan color. Further, the non-image portion 12 of the image line 5 is enlarged, and the background color is visually recognized. The pixels 10b and the non-pixel portions 11b that form the second latent image pattern 4 are not enlarged, and thus are visually recognized as cyan. Therefore, the second latent image pattern 4 is visually recognized by the color difference between the background image 2 and the second latent image pattern 4.

Therefore, as shown in FIG. 10 and FIG. 11, the printed material A1 that can determine authenticity is embedded with two latent image images, and the two latent image images have a region where at least part of the latent image overlaps each other. Since the image is formed with a special image line, different latent image images can be clearly visually recognized when superimposed in the first state and when superimposed in the second state. However, the design of the latent image is not limited.

As shown in FIG. 12, when a printed material A1 that can be determined as authenticity is copied by a color copying machine, the image line width A of the background image 5 is formed to be larger than 64 μm and smaller than 130 μm, and is reproduced by the copying machine. The pixels 10a and 10b of the first fixed-cycle break line 8a and the second fixed-cycle break line 8b that form the first latent image pattern 3 and the second latent image pattern 4 are formed with a thickness of about 25 μm to 64 μm. Therefore, it is difficult to reproduce with a copying machine. Therefore, the background image 5 is reproduced in cyan (black in the case of a black-and-white copying machine), and the first latent image pattern 3 and the second latent image pattern 4 are light cyan or the background color (for example, paper or plastic). Color). Therefore, a composite image of the first latent image pattern 3 and the second latent image pattern 4 is visually recognized by the difference in color or density between the background image 2 and the first latent image pattern 3 and the second latent image pattern 4. The

In addition to the effects of FIGS. 10, 11 and 12, when the printed material A1 capable of authenticating authenticity is printed with colored fluorescent ink, the effects as shown in FIG. 13 are obtained. As shown in FIG. 13, when the printed matter A <b> 1 capable of authenticating ultraviolet rays is irradiated by the ultraviolet lamp M, the first latent image pattern 3 and the second latent image pattern 4 emit light intensity more than the background image 5. Is strongly visible. Ultraviolet rays are sufficiently visible with a handy type ultraviolet lamp, and examples thereof include a cordless fluorescent lamp (BF642) manufactured by Matsushita Equipment. This is because the light emission of the pixel 10a of the first periodic break line 8a that forms the first latent image pattern 3 straddles the peripheral non-pixel region, and the area of the pixel 10a is visually recognized to be large. This is because the light emission of the pixel 10b of the second fixed periodic break line 8b forming the latent image pattern 4 straddles the surrounding non-pixel region, and the area of the pixel 10b is visually recognized. The light emission of the image line of the background image 5 also extends over the surrounding area, but the area is smaller than the first fixed-cycle break line 8a and the second fixed-cycle break line 8b. Therefore, a composite image of the first latent image pattern 3 and the second latent image pattern 4 is visually recognized by the difference in emission intensity between the background image 2 and the first latent image pattern 3 and the second latent image pattern 4. .

In FIG. 1, the pattern 1 is formed by a straight line drawing line. However, as shown in FIG. 14, the pattern 1 can be formed by a curved line drawing line. In this case, when the pattern 1 is formed with the curved line drawing line, it is necessary to discriminate with the curved line lenticular lens corresponding to the curved line drawing line, and the pattern 1 is formed with the straight line drawing line and the curved line drawing line. In this case, it is necessary to discriminate using a lenticular lens with a straight line and a curved line corresponding to a straight line and a curved line.

The first fixed periodic break line 8a forming the first latent image pattern 3 can be formed in a shape as shown in FIG. 15, and FIG. 15A shows the pixel 10a of the first fixed periodic break line 8a. In FIG. 15B, since the lower image area 7b occupies an area of ½ or more of the image line width A of the image line 5, the first fixed line break line 8a is formed in FIG. Each pixel 10a has a smaller area than the pixel 10a in FIG. In addition, a portion corresponding to a predetermined length F1 (here, one period corresponding to a constant periodic disconnection line) composed of pixels 10a and non-pixel portions 11a continuous in the direction of the basic line 9 of the first constant periodic disconnection line 8a. The total image area (C1, D1) of the area corresponding to the same length F2 as the predetermined length F1 in the direction of the basic line 9 in the solid line 6 where the latent image is not applied ( G) and the same (including almost the same).

The first fixed break line 8a forming the second latent image pattern 4 can be formed in a shape as shown in FIG. 16, and FIG. 16A shows the pixel 10b of the second fixed break line 8b. In FIG. 16B, since the upper image area 7a occupies an area of 1/2 or more of the image width A of the image line 5, the second fixed period cut line 8b is shown in FIG. Each pixel 10b has a smaller area than the pixel 10b in FIG. In addition, a portion corresponding to a predetermined length F1 (here, one cycle corresponding to the fixed periodic disconnection line) composed of the pixels 10b and the non-pixel portion 11b continuous in the basic line 9 direction of the second fixed periodic disconnection line 8b. The total image area (C2, D2) of the portion corresponding to the same length F2 as the predetermined length F1 in the direction of the basic line 9 in the solid line 6 where the latent image is not applied ( G) and the same (including almost the same).

The region where the first latent image pattern 3 and the second latent image pattern 4 overlap can be formed in a shape as shown in FIG. 17, and FIG. 17 (a) shows the pixel 10a of the first fixed periodic break line 8a and The pixels 10b of the second fixed periodic break line 8b are formed obliquely, and FIG. 17B shows the first constant line region 7c formed in the region where the latent image is formed. Each pixel 10a of the periodic break line 8a has a smaller area than the pixel 10a of FIG. 17A, and each pixel 10b of the second fixed break line 8b has a smaller area than the pixel 10b of FIG. 17A. It has become. In addition, a predetermined length F1 (a pixel 10a, a non-pixel portion 11a, a pixel 10b, and a non-pixel portion 11b, which are continuous in the direction of the basic line 9 of the first constant periodic disconnection line 8a and the second constant periodic disconnection line 8b ( Here, the sum of the image area (C1, C2, D) of the portion corresponding to one cycle corresponding to the fixed periodic break line is a predetermined value in the direction of the basic line 9 among the solid lines 6 where the latent image is not applied. The same area (G) as that of the portion corresponding to the length F2 that is the same as the length F1 (including substantially the same). The periodic break line of the present invention is not limited to these shapes. In addition, the shape of the pixels of these periodic break lines is not particularly limited.

In the above description, the first latent image pattern forming image line or the second latent image pattern forming image line forming the printed matter capable of authenticating authenticity according to the present invention has the pixels and the non-pixel portions arranged at a constant interval. The first latent image pattern forming image line as shown in FIGS. 18A and 18B is a branched image line branched from the image line of the portion where no latent image is applied. In FIG. 18A, the image line width A ′ and the image line width A ″ are the same, and the total image line width of the image line width A ′ and the image line width “is a portion where no latent image is applied. It is the same as the image line A (including almost the same). In FIG. 18B, the image line width A ′ and the image line width A ″ are different from each other, and the total of the image line widths of the image line width A ′ and the image line width A ″ is not subjected to the latent image. It is the same (including almost the same) as the image line A. Further, the area of C1 and D1 corresponding to F1 and the area of G corresponding to F2 must be the same (including substantially the same). The second latent image pattern forming image line as shown in FIGS. 19A and 19B is a branched image line branched from the image line of the portion where no latent image is applied, and FIG. 19A shows the image line width. A ′ and the image line width A ″ are the same width, and the total image line width of the image line width A ′ and the image line width “is the same as the image line A where the latent image is not applied (including substantially the same). It has become. In FIG. 19B, the image line width A ′ and the image line width A ″ are different from each other, and the total of the image line width A of the image line width A ′ and the image line width A ″ does not give a latent image. It is the same as the image line A of the part (including almost the same). Further, the area of C2 and D2 corresponding to F1 and the area of G corresponding to F2 must be the same (including substantially the same).

In the region where the first latent image pattern 3 and the second latent image pattern 4 overlap as shown in FIGS. 20A and 20B, the line width A ′ and the line width A ″ are as shown in FIG. The total of the image line widths of the image line width A ′ and the image line width “is the same (including substantially the same) as the image line A of the portion where no latent image is applied. Further, the area of C1 and C2 corresponding to F1 and the area of G corresponding to F2 must be the same (including almost the same). In FIG. 20B, the image line width A ′, the image line width A ″, and the image line width are different, and the sum of the image line widths I of the central image lines of the image line width A ′ and the image line width A ″ is calculated. The image line A is the same (including almost the same) as the image line A where no latent image is applied. Further, the area of C1, C2, and D corresponding to F1 and the area of G corresponding to F2 must be the same (including substantially the same).

The first latent image pattern forming image line as shown in FIGS. 21A and 21B can be formed from a zigzag image line branched from the image line of the portion where no latent image is applied. This is because the area of C1 and D1 corresponding to F1 and the area of G corresponding to F2 must be the same (including almost the same). The second latent image pattern forming image line as shown in FIGS. 22A and 22B can be formed from a zigzag image line branched from the image line of the portion where no latent image is applied. This is because the area of C2 and D2 corresponding to F1 and the area of G corresponding to F2 must be the same (including almost the same). The region where the first latent image pattern 3 and the second latent image pattern 4 overlap as shown in FIGS. 23A and 23B is from a zigzag shaped image line branched from the image line of the portion where no latent image is applied. It can be formed. This is because the area of C1 and C2 corresponding to F1 and the area of G corresponding to F2 must be the same (including almost the same). The area where the first latent image pattern 3 and the second latent image pattern 4 overlap as shown in FIG. 24A and FIG. 24B is from the zigzag shaped image line branched from the image line of the portion where the latent image is not applied. It can be formed. Further, the area of C1, C2, and D corresponding to F1 and the area of G corresponding to F2 must be the same (including substantially the same). Note that the lengths of F1 and F2 shown above are the same. These branch image lines and zigzag image lines must also protrude into the non-image area (upper non-image area 14 or lower non-image area 15).

Therefore, the present invention forms a pattern from a straight line drawing line and / or a curved line drawing line (including concentric circle drawing lines) on a substrate, and the pattern is a region where a latent image pattern is not applied, the first latent image. The first latent image pattern is divided into a region where a pattern is applied and a region where a second latent image pattern is applied, and the straight line drawing line and / or the curved line drawing line of the region where the latent image is not applied is a solid line. The region to be subjected to is a first non-linear area that is not more than ½ of the line width of the straight line and / or the curved line. The first latent image pattern forming image line is shifted to the line area (a periodic periodic break line in which pixels and non-pixel portions are arranged at a constant interval, a branched image line branched from the image line of the portion where no latent image is applied, zigzag The region where the second latent image pattern is applied is the straight line drawing line and / or the line drawing line. The second latent image pattern-formed image is formed by shifting a second image area that is ½ or less of the line width of the curved line image line to a second non-image area in a direction perpendicular to the basic line direction. Consists of lines (at least one of a periodic break line in which pixels and non-pixel portions are arranged at regular intervals, a branch line branched from an image line where a latent image is not applied, a zigzag shape line, etc.) The area where the first latent image pattern and the second latent image pattern overlap is basically the first image area having the line width of the straight line image line and / or the curved line image line. It is shifted to the first non-image area in the direction perpendicular to the line direction, and is composed of the first latent image pattern-formed image line. Further, the image line width of the straight line image line and / or the curved line image line. The second image area is shifted to a second non-image area perpendicular to the basic line direction to form a second latent image pattern forming image line, and the first latent image area is The sum of the image area of the portion corresponding to the predetermined length in the basic line direction of the pattern forming image line and the image area of the second image area of the portion corresponding to the same length as the predetermined length is , Of the solid line where the latent image is not applied, the same as the image area of the portion corresponding to the same length as the predetermined length in the basic line direction (including substantially the same), and the second line The image area of a portion corresponding to a predetermined length in the basic line direction of the latent image pattern formation image line, and the image area of the first image area of a portion corresponding to the same length as the predetermined length The total sum is the same (including substantially the same) the image area of the portion corresponding to the same length as the predetermined length in the basic line direction among the solid lines of the portion where the latent image is not applied; A predetermined length in a basic line direction of one latent image pattern forming image line and the second latent image pattern forming image line; The sum of the image area of the portion corresponding to the same is the same as the image area of the portion corresponding to the same length as the predetermined length in the basic line direction among the solid lines where the latent image is not applied (almost) (Including the same), and a printed matter capable of authenticating authenticity.

In the present invention, a pattern is formed on a substrate from a straight line drawing line and / or a curved line drawing line (including concentric circle drawing lines), and the pattern is a region where a latent image pattern is not applied, the first latent image. The first latent image pattern is divided into a region where a pattern is applied and a region where a second latent image pattern is applied, and the straight line drawing line and / or the curved line drawing line of the region where the latent image is not applied is a solid line. The region to be applied is shifted to the first non-line region in the direction perpendicular to the basic line direction from the first line region of the straight line line and / or the line width of the curved line line. First latent image pattern forming line (fixed periodic break line in which pixels and non-pixel portions are arranged at a fixed interval, branch line branching from a part of the line where no latent image is applied, zigzag shaped line And the region where the second latent image pattern is applied is the straight line drawing line and / or the curved line drawing. The second image area having the image line width is shifted to the second non-image area in a direction perpendicular to the basic line direction, and the second latent image pattern forming image line (pixel and non-pixel portion are constant) At least one of a periodic break line arranged at intervals, a branched image line branched from a non-latent image line, a zigzag image line, etc.), and the first latent image pattern The area where the second latent image pattern overlaps is a first line area that is ½ or less of the line width of the straight line line and / or the curved line line with respect to the basic line direction. The first non-image area is shifted to a first non-image area in a perpendicular direction, and is composed of a first latent image pattern-forming image line, and is a first or less half of the image line width of the straight line image line and / or the curved line image line. The second image area is shifted to a second non-image area perpendicular to the basic line direction, and is composed of a second latent image pattern forming image line, and further the first latent image pattern Forming a central image line between the image forming line and the second latent image pattern forming image line, and an image area of a portion corresponding to a predetermined length in the basic line direction of the first latent image pattern forming image line; The sum of the image area of the second image area of the portion corresponding to the same length as the predetermined length is the same as the predetermined length in the basic line direction among the solid lines of the portion where the latent image is not applied. The image area of a portion corresponding to a predetermined length in the basic line direction of the second latent image pattern forming image line is configured to be the same (including substantially the same) as the image area of the portion corresponding to the length of And the sum of the image area of the first image area of the portion corresponding to the same length as the predetermined length is the predetermined length in the basic line direction among the solid lines of the portion where the latent image is not applied. And the first latent image pattern shape having the same area (including substantially the same) as the image area of the portion corresponding to the same length as An image area of a portion corresponding to a predetermined length in the basic line direction of the image forming line and the second latent image pattern forming image line, and a central image line of a portion corresponding to the same length as the predetermined length Is the same (including substantially the same) the image area of the portion corresponding to the same length as the predetermined length in the basic line direction among the solid lines where the latent image is not applied. It is a printed matter that is configured to be authentic.

For example, when the pattern of a printed matter capable of authenticating authenticity of the present invention is produced at a pitch of 200 μm, the lenticular lens for determining the printed matter capable of determining authenticity is preferably about 200 μm. Moreover, it is preferable that the lenticular lens has a shape similar to the image line shape.

  The substrate for printing the printed matter capable of authenticating authenticity of the present invention is not particularly limited, such as paper, plastic, film, metal plate and the like.

  A printing method for printing a printed matter capable of authenticating authenticity of the present invention is not particularly limited, such as an offset printing method, a gravure printing method, a screen printing method, a flexographic printing method, an ink jet printer, and a laser printer.

Since the pattern 1, the first latent image pattern 3, and the second latent image pattern 4 can be composed of at least one of letters, numbers, symbols, and patterns, the design is not particularly limited.

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

Example 1
CG (computer graphic) software is used to examine the expansion value (or shrinkage value) with the test image line in advance in order to design the image line at the time of plate making taking into account the expansion value (or shrinkage value) of the image line during printing. did. As a test image line, the image line width on the original plate for plate making is set to 100 μm, a high-quality commercial paper is used for the paper, and the ink is also offset printed with a commercially available offset ink (pink). As a result of measurement, it was measured to be 106 μm, so the expansion value of the image line in the image width direction was 6 μm as a whole, and the expansion value (or contraction value) g generated around the image line when printing was 3 μm. I understood it.

Using the value of the expansion value of 3 μm generated around the image line obtained by the test image line, the image line width in the direction perpendicular to the solid basic line of the portion where no latent image is applied by the image line structure of the present invention. A printing plate was prepared for obtaining a printed matter capable of determining the authenticity of the pattern 1 composed of one or a plurality of image lines having a thickness of 106 μm. First, using a commercially available CGS, a basic line 9 consisting of a spline curve that forms the basis of a pattern consisting of one or a plurality of image lines as shown in FIG. 25 is a gentle wavy line, and consists of this spline curve. The basic line 9 was set on two-dimensional coordinates and sent in parallel at an interval of 300 μm, and the first latent image pattern 3 and the second latent image pattern 4 were arranged on the basic line 9 formed of a spline curve. At the boundary between the solid line 6 and the first latent image pattern 3 in the image line 5 serving as the background image 2, the basic line 9 made of a spline curve is cut in the first latent image pattern 3, and the first latent image pattern 3 The enclosed image lines are collected, and the image lines are provided at an equal distance of 80 μm on the basis of the center line of the basic line 9 made of a spline curve. Similarly, the basic line 9 made of the spline curve is cut by the second latent image pattern 4, the image lines surrounded by the second latent image pattern 4 are collected, and the center line of the basic line 9 made of the spline curve is used as a reference. An image line is provided at an equal distance of 80 μm below. These spline curves are used to substitute the line width and the value of the periodic break line. The reason why the lines are set at an equal distance of 80 μm up and down with respect to the center line is that the basic line 9 made of a spline curve is set to 300 μm, so that the lines of the periodic break lines do not overlap each other. Since the interval is set, the value also changes depending on the interval of the basic line 9 made of a spline curve.

First, in the printed material that can be determined whether the pattern 1 is true or false in the embodiment, the image line 5 to be the background image 2 is set to 106 μm in the print image line width in the direction perpendicular to the basic line 9 of the solid line 6. The designed image line width A was set to 100 μm by subtracting the expansion value (3 + 3) μm of the image line in the image line width direction grasped by the test image line.

Next, the image lines of the first latent image pattern 3 and the second latent image 4 are set, that is, the pixels 10a of the first periodic break line 8a that forms the first latent image pattern 3 in FIG. The pixel width a1 in the direction perpendicular to the basic line 9 and the length a2 in the basic line direction with respect to the basic line 9 of the pixel 10a of the first fixed periodic break line 8a that forms the first latent image pattern 3. 27, the pixel width b1 in the direction perpendicular to the basic line 9 of the pixel 10b of the second fixed periodic break line 8b forming the second latent image pattern 4 in FIG. 27 and the second latent image pattern 4 are formed. It is necessary to set the length b2 in the basic line direction with respect to the basic line 9 of the pixel 10b of the second fixed-cycle break line 8b. FIG. 28 shows an image line in a region where the first latent image pattern 3 and the second latent image pattern 4 overlap.

First, the length a1 + 2g in the direction perpendicular to the basic line direction of the pixel 10a of the first constant periodic break line 8a that forms the first latent image pattern 3 on the printed matter, and the pixel 10a of the first constant periodic break line. As for the length a2 + 2g in the basic line direction and the length in the basic line direction of the non-pixel portion 11a, it is necessary that the latent image is not visually recognized by the naked eye and is not resolved by the copying machine. Assuming that the output resolution of the copying machine is 400 dpi, one pixel is 64 μm. Therefore, a length of about 64 μm or less is suitable as a standard for a length that is difficult to resolve. In the present embodiment, the pixel 10a of the first latent image pattern 3 is separated from the basic line 9 by 80 μm from the basic line 9 in order to prevent the pixel 10a of the first latent image pattern 3 from overlapping the image line of the lower image area 7b with J as the center. 46 μm and a2 + 2g were 46 μm, and the length of the non-pixel portion 11a in the basic line direction was 30 μm. Therefore, by subtracting the expansion value (3 + 3) μm of the image line in the basic line direction grasped by the test image line, a1 becomes 40 μm and a2 becomes 40 μm. The length of B is the value obtained by subtracting the expansion value (3 + 3) μm from the non-pixel 30 μm and the length 46 of the image line portion, that is, (30−6) + 46 = 70. Next, the line width d + 2g of the lower line area 7b was 76 μm, and d was set to 70 μm by subtracting the expansion value (3 + 3) μm of the image line in the basic line direction grasped by the test line.

As described in the embodiment, a predetermined length F1 made up of the pixels 10a and the non-pixel portions 11a that are continuous in the direction of the basic line 9 of the first constant periodic disconnection line 8a (here, corresponds to a constant periodic disconnection line). Corresponding to a length F2 that is the same as a predetermined length F1 in the direction of the basic line 9 among the sum of the image area (C1, D1) corresponding to one period) and the solid line 6 where no latent image is applied Since it is necessary that the image area (G) of the portion to be within the range of about 95 to 110%, the following formula 1 needs to be satisfied.

  Therefore, when the above value is substituted into Equation 1 and calculated, 0.95 × 70 (100 + 6) ≦ {(40 + 6) × (40 + 6) + (70 + 6) 70} ≦ 1.1 × 70 (100 + 6) = 7049 ≦ 7436 It was ≦ 8162, and was within the range of Formula 1.

Next, the length b1 + 2g in the direction perpendicular to the basic line direction of the pixel 10b of the second fixed periodic break line 8b that forms the second latent image pattern 4 on the printed matter, and the basic of the pixel 10b of the fixed periodic break line. Regarding the length b2 + 2g in the line direction and the length in the basic line direction of the non-pixel portion 11b, it is necessary that the latent image is not visually recognized by the naked eye and is not resolved by the copying machine. If the output resolution is 400 dpi, one pixel is 64 μm, and therefore, a length of about 64 μm or less is suitable as a standard of a length that is difficult to be resolved. In this embodiment, the pixel 10b of the second latent image pattern 4 is separated from the basic line 9 by 80 μm from the basic line 9 in order to prevent the pixel 10b of the second latent image pattern 4 from overlapping the image line of the upper image area 7a with J as the center. 46 μm and b2 + 2g were 46 μm, and the length of the non-pixel portion 11b in the basic line direction was 30 μm. Therefore, by subtracting the expansion value (3 + 3) μm of the image line in the basic line direction grasped by the test image line, b1 becomes 40 μm and b2 becomes 40 μm. The length of B is the value obtained by subtracting the expansion value (3 + 3) μm from the non-pixel 30 μm and the length 46 of the image line portion, that is, (30−6) + 46 = 70. Next, the image line width d + 2g of the upper image area 7a was 76 μm, and d was set to 70 μm by subtracting the expansion value (3 + 3) μm of the image line in the basic line direction grasped by the test image line.

As described in the embodiment, a predetermined length F1 made up of the pixels 10b and the non-pixel portions 11b that are continuous in the direction of the basic line 9 of the second constant periodic disconnection line 8b (here, corresponds to a constant periodic disconnection line). Corresponds to the same length F2 as the predetermined length F1 in the direction of the basic line 9 among the sum of the image area (C2, D2) corresponding to one period) and the solid line 6 where no latent image is applied. Since the image area (G) of the portion to be processed needs to be in the range of about 95 to 110%, the following formula 2 needs to be satisfied.

Therefore, when the above value is substituted into Equation 2 and calculated, 0.95 × 70 (100 + 6) ≦ {(40 + 6) × (40 + 6) + (70 + 6) 70} ≦ 1.1 × 70 (100 + 6) = 7049 ≦ 7436 ≦ 8162, which was within the range of Formula 2.

Next, an image line in an area where the first latent image pattern 3 and the second latent image pattern 4 overlap will be described. As shown in FIG. The length a1 + 2g in the direction perpendicular to the basic line direction of the pixel 10a of the first periodic break line 8a forming the first latent image pattern 3, and the length a2 + 2g in the basic line direction of the pixel 10a of the constant break line 8a. As for the length of the non-pixel portion 11a in the basic line direction, as described above, a1 + 2g is set to 46 μm, a2 + 2g is set to 46 μm, and the length of the non-pixel portion 11a in the basic line direction is set to 30 μm. Similarly, the length b1 + 2g in the direction perpendicular to the basic line direction of the pixel 10b of the second periodic break line 8b forming the second latent image pattern 4 and the basic line direction of the pixel 10b of the constant break line Regarding the length b2 + 2g and the length of the non-pixel portion 11b in the basic line direction, as described above, b1 + 2g is set to 46 μm, b2 + 2g is set to 46 μm, and the length of the non-pixel portion 11b in the basic line direction is set to 30 μm. . Next, the line width d + 2g of the center line area 7c was set to 46 μm, and d was set to 40 μm by subtracting the expansion value (3 + 3) μm of the image line in the basic line direction grasped by the test line.

As described in the embodiment, from the pixel 10a, the non-pixel portion 11a, the pixel 10b, and the non-pixel portion 11b that are continuous in the direction of the basic line 9 of the first constant periodic disconnection line 8a and the second constant periodic disconnection line 8b. Of the total image area (C1, C2, D) of a portion corresponding to a predetermined length F1 (here, one cycle corresponding to a fixed periodic break line) and a solid line 6 of a portion where no latent image is applied Since the image area (G) of the portion corresponding to the same length F2 as the predetermined length F1 in the direction of the basic line 9 needs to be in the range of about 95 to 110%, the following expression 3 is satisfied. There is a need to.

Therefore, when the above value is substituted into Equation 3, the calculation is 0.95 × 70 (100 + 6) ≦ {(40 + 6) × (40 + 6) + (40 + 6) × (40 + 6) + (40 + 6) 70} ≦ 1.1 × 70 (100 + 6) = 7049 ≦ 7452 ≦ 8162
And was within the range of Equation 3.

The numerical values used in the present embodiment are not limited to this, and can be changed as necessary.

For pattern 1 designed by CGS, use a commercially available laser plotter to make an original plate for film making, and then make a printing plate using a commercially available positive type PS plate. In addition, with a commercially available offset ink (pink), the adjustment of the printing device is equal to that of general lithographic offset printing, and offset printing was performed without any special adjustment, and a printed matter capable of determining authenticity shown in FIG. 29 was obtained.

As shown in FIG. 29, when a printed matter capable of authenticating authenticity is observed with the naked eye under visible light, the pattern 1 is divided into the background image 2, the first latent image pattern 3, and the second latent image pattern 4. It was not possible to see. As shown in FIG. 30, a hook-shaped lenticular lens (L) having a pitch of 300 μm is visible in a first state (a state in which the basic line direction and the lenticular lens are in the same line direction) with respect to a printed matter capable of authenticating authenticity. When observed with the naked eye under light, the first latent image pattern 3 is visually recognized, and as shown in FIG. 31, the second state (basic line direction and lenticular direction is shifted by about 100 μm from the case where the first latent image pattern 3 is overlaid in the first state. The second latent image pattern 4 was visually recognized when the lens was overlapped in the same line direction and observed with the naked eye under visible light.

As shown in FIG. 32, when a printed matter capable of authenticating authenticity is reproduced by a color copying machine (for example, Canon CLC900 type, Ricoh PATER750 type, Minolta CF900), the image line of the background image 5 is reproduced by the copying machine. The pixels 10a and 10b of the first fixed-cycle break line 8a and the second fixed-cycle break line 8b that form the first latent image pattern 3 and the second latent image pattern 4 were not reproduced by the copying machine. Therefore, a composite image of the first latent image pattern 3 and the second latent image pattern 4 was visually recognized by the difference in color between the background image 2 and the first latent image pattern 3 and the second latent image pattern 4.

The pattern 1 composed of straight lines is an explanatory diagram that is divided into a background image 2, a first latent image pattern 3 (English letter P), and a second latent image pattern 4 (English letter B). FIG. 2 is an enlarged view of an image line in area A in FIG. 1. It is explanatory drawing of the 1st fixed-cycle disconnection line 8a. FIG. 2 is an enlarged view of a line in a region B in FIG. It is explanatory drawing of the 2nd fixed period break line 8b. FIG. 2 is an enlarged view of a line in a region C in FIG. 1. It is explanatory drawing about the image line of the area | region where 1 latent image pattern 3 and 2nd latent image pattern 4 overlap. It is a figure at the time of observing the printed matter A1 which can authenticate authenticity with the naked eye under visible light. It is a figure which shows the lenticular lens (L) in which a plurality of bowl-shaped lenses are formed like a line. In the first state, a lenticular lens (L) in which a plurality of rod-shaped lenses are formed like a line is superimposed on a printed matter A1 that can be determined as authenticity and is observed with the naked eye under visible light. is there. In the second state, a lenticular lens (L) in which a plurality of rod-shaped lenses are formed like a line is superimposed on a printed material A1 that can authenticate authenticity and is observed with the naked eye under visible light. is there. It is a figure at the time of copying printed matter A1 which can authenticate authenticity with a color copying machine. FIG. 6 is a diagram of a case where a printed matter A1 that can be detected as authenticity is printed with colored fluorescent ink, and ultraviolet rays M are applied to the printed matter A1 that can be determined as authenticity by an ultraviolet lamp M; It is a figure at the time of forming the pattern 1 by the curved line drawing line 13. It is a figure which shows another form of the 1st fixed-cycle break line 8a which forms the 1st latent image pattern 3. FIG. It is a figure which shows another form of the 2nd fixed period break line 8b which forms the 2nd latent image pattern. It is a figure which shows another form of the image line of the area | region where the 1 latent image pattern 3 and the 2nd latent image pattern 4 overlap. It is a figure which shows another form of the image line which forms the 1st latent image pattern. It is a figure which shows another form of the image line which forms the 2nd latent image pattern. It is a figure which shows another form of the image line of the area | region where the 1 latent image pattern 3 and the 2nd latent image pattern 4 overlap. It is a figure which shows another form of the image line which forms the 1st latent image pattern. It is a figure which shows another form of the image line which forms the 2nd latent image pattern. It is a figure which shows another form of the image line of the area | region where the 1 latent image pattern 3 and the 2nd latent image pattern 4 overlap. It is a figure which shows another form of the image line of the area | region where the 1 latent image pattern 3 and the 2nd latent image pattern 4 overlap. It is a figure which shows the spline curve in producing the printed matter which can authenticate authenticity. It is explanatory drawing of the 1st fixed-cycle disconnection line 8a. It is explanatory drawing of the 2nd fixed-cycle disconnection line 8a. It is explanatory drawing about the image line of the area | region where 1 latent image pattern 3 and 2nd latent image pattern 4 overlap. It is a figure at the time of observing the printed matter which can authenticate authenticity with the naked eye under visible light. It is a figure at the time of observing with the naked eye under visible light on the printed matter which can authenticate authenticity the lenticular lens (L) in which a plurality of rod-shaped lenses are formed like a line in the first state. . It is a figure at the time of observing with the naked eye under visible light on the printed matter which can authenticate authenticity, and the lenticular lens (L) in which a plurality of rod-like lenses are formed like a line in the second state is superimposed. . FIG. 5 is a diagram when a printed matter that can be authenticated is copied by a color copying machine.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Pattern which consists of straight line drawing line 2 Background image 3 1st latent image pattern 4 2nd latent image pattern 5 Drawing 6 Solid line 6
7a Upper image area 7b Lower image area 7c Center image area 8a First fixed line break line 8b Second fixed line break line 9 Basic line 10a, 10b Predetermined pixels 11a, 11b Non-pixel part 12 Picture Non-line portion of line 5 13 Curved line line 14 Upper non-line area 15 Lower non-line area A Line width A 'Line width A "Line width A1 Prints with true / false distinction B Fixed interval C1 , C2, D1, D2, G Line area F1 Length of one cycle of the periodic break line F2 Same length F2 as F1
H Distance away from the basic line 9 I Image line width M UV lamp T shift a1 Pixel width in the direction perpendicular to the basic line 9 of the pixel 10a of the first constant periodic disconnection line 8a a2 First constant periodic disconnection line 8a The length in the basic line direction with respect to the basic line 9 of the pixel 10a b1 The pixel width in the direction perpendicular to the basic line 9 of the pixel 10b of the second constant periodic disconnection line 8b b2 The length of the second constant periodic disconnection line 8b Length in the basic line direction with respect to the basic line 9 of the pixel 10b c Length in the basic line direction of the non-pixel portion d Image line width g Expansion value

Claims (6)

A pattern is formed on the substrate by a line drawing line,
The pattern is divided into a region where a latent image pattern is not applied, a region where a first latent image pattern is applied, and a region where a second latent image pattern is applied,
The area where the latent image is not applied is constituted by a solid line,
The image line in the area to which the first latent image pattern is applied is constituted by a second image line having a predetermined width and a first latent image pattern forming image line among the image line widths of the line image line, The second image line is arranged along the arrangement direction of the line drawing line, and the first latent image pattern formation image line is shifted in one direction along the arrangement direction of the line drawing line. And arranged
The image line in the region to which the second latent image pattern is applied is constituted by a first image line having a predetermined width and a second latent image pattern forming image line among the image line widths of the line image line, The first image line is arranged along the arrangement direction of the line drawing line, and the second latent image pattern formation image line is shifted in the other direction along the arrangement direction of the line drawing line. Printed material that can be identified as authenticity,
A direction in which only the first latent image pattern is confirmed and the line drawing lines are arranged from the first state when a lenticular lens is overlapped and observed in the first state on the printed matter capable of determining authenticity When the image is observed in the second state where the lenticular lens is shifted, only the second latent image pattern is confirmed. A pattern is formed on the substrate by a line drawing line,
The pattern is a region where no latent image pattern is applied, a region where a first latent image pattern is applied, a region where a second latent image pattern is applied, and the first latent image pattern and the second latent image pattern overlap. Divided into areas,
The area where the latent image is not applied is constituted by a solid line,
The image line in the area to which the first latent image pattern is applied is constituted by a second image line having a predetermined width and a first latent image pattern forming image line among the image line widths of the line image line, The second image line is arranged along the arrangement direction of the line drawing line, and the first latent image pattern formation image line is shifted in one direction along the arrangement direction of the line drawing line. And arranged
The image line in the region to which the second latent image pattern is applied is constituted by a first image line having a predetermined width and a second latent image pattern forming image line among the image line widths of the line image line, The first image line is arranged along the arrangement direction of the line drawing line, and the second latent image pattern formation image line is shifted in the other direction along the arrangement direction of the line drawing line. Printed material that can be identified as authenticity,
The area where the first latent image pattern and the second latent image pattern overlap is constituted by the first latent image pattern forming image line and the second latent image pattern forming image line, and the first latent image pattern forming image line The latent image pattern forming image line is arranged with a deviation in one direction along the arrangement direction of the line drawing line, and the second latent image pattern forming image line is arranged in the arrangement direction of the line drawing line. A printed matter that can be discriminated between authenticity and arranged with a deviation in the other direction along
A direction in which only the first latent image pattern is confirmed and the line drawing lines are arranged from the first state when a lenticular lens is overlapped and observed in the first state on the printed matter capable of determining authenticity When the image is observed in the second state where the lenticular lens is shifted, only the second latent image pattern is confirmed. A streak area of a portion corresponding to a predetermined length in the baseline direction of the first latent image pattern formed streak, the second image line of the predetermined portion corresponding to the length the same length and The sum of the image area is configured to be the same as the image area of a portion corresponding to the same length as the predetermined length in the basic line direction, among the solid lines where the latent image is not applied,
Wherein a streaked area of a portion corresponding to a predetermined length in the baseline direction of the second latent image pattern formed streak, the first image line of the predetermined portion corresponding to the length the same length and The sum of the image area is configured to be the same as the image area of a portion corresponding to the same length as the predetermined length in the basic line direction, among the solid lines where the latent image is not applied,
The sum of the image area of the portion corresponding to a predetermined length in the basic line direction of the first latent image pattern formation image line and the second latent image pattern formation image line 3. The printed matter capable of authenticating authenticity according to claim 2, wherein the printed line has the same image area as a portion corresponding to the same length as the predetermined length in the basic line direction. A pattern is formed on the substrate by a line drawing line,
The pattern is a region where no latent image pattern is applied, a region where a first latent image pattern is applied, a region where a second latent image pattern is applied, and the first latent image pattern and the second latent image pattern overlap. Divided into areas,
The area where the latent image is not applied is constituted by a solid line,
The image line in the area to which the first latent image pattern is applied is constituted by a second image line having a predetermined width and a first latent image pattern forming image line among the image line widths of the line image line, The second image line is arranged along the arrangement direction of the line drawing line, and the first latent image pattern formation image line is shifted in one direction along the arrangement direction of the line drawing line. And arranged
The image line in the region to which the second latent image pattern is applied is constituted by a first image line having a predetermined width and a second latent image pattern forming image line among the image line widths of the line image line, The first image line is arranged along the arrangement direction of the line drawing line, and the second latent image pattern formation image line is shifted in the other direction along the arrangement direction of the line drawing line. Printed material that can be identified as authenticity,
The region where the first latent image pattern and the second latent image pattern overlap is configured by the first latent image pattern forming image line, the second latent image pattern forming image line, and the central image line, The first latent image pattern formation image line is arranged with a shift in one direction along the arrangement direction of the parallel line image lines, and the second latent image pattern formation image line is the line image line. And the center image line is disposed between the first latent image pattern forming image line and the second latent image pattern forming image line. A printed matter that can be identified as authenticity,
A direction in which only the first latent image pattern is confirmed and the line drawing lines are arranged from the first state when a lenticular lens is overlapped and observed in the first state on the printed matter capable of determining authenticity When the image is observed in the second state where the lenticular lens is shifted, only the second latent image pattern is confirmed. A streak area of a portion corresponding to a predetermined length in the baseline direction of the first latent image pattern formed streak, the second image line of the predetermined portion corresponding to the length the same length and The sum of the image area is configured to be the same as the image area of the portion corresponding to the same length as the predetermined length in the basic line direction among the solid lines of the portion where the latent image is not applied,
Wherein a streaked area of a portion corresponding to a predetermined length in the baseline direction of the second latent image pattern formed streak, the first image line of the predetermined portion corresponding to the length the same length and The sum of the image area is configured to be the same as the image area of the portion corresponding to the same length as the predetermined length in the basic line direction among the solid lines of the portion where the latent image is not applied,
The image area of a portion corresponding to a predetermined length in the basic line direction of the first latent image pattern forming image line and the second latent image pattern forming image line, and the same length as the predetermined length The sum of the drawing area of the central drawing line of the corresponding portion is the drawing line area of the portion corresponding to the same length as the predetermined length in the basic line direction among the solid lines of the portion where the latent image is not applied. The printed matter capable of authenticating authenticity according to claim 4, wherein the printed matter has the same configuration.   The first latent image pattern forming image line and the second latent image pattern forming image line include a periodic break line in which pixels and non-pixel portions are arranged at a constant interval, and an image line in a portion where no latent image is applied. 6. The printed matter capable of authenticating authenticity according to claim 1, comprising at least one of a branched drawing line branched from a zigzag shape and a zigzag shaped drawing line.

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