JP2000158792A - Copy preventing printed matter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a copy preventing printed matter capable of being easily identified as a copy without influence of an angle of mounting in the case of copying. SOLUTION: A gift certificate sheet 100 of this embodiment is formed by printing a copy preventive layer 20 made of regions partitioned into a plurality at different angles at a plurality of line segments aligned substantially in the same directions (angles) at respective adjacent regions and providing a ground pattern layer 19 to be printed uniformly on the overall surface of the sheet 100. In the case of copying the sheet 100, any direction of the segments of the regions corresponds to the angle for easily sensing to a scanning direction of a copier. Accordingly, the segment of the corresponding is discolored in a dark color and copied. Thus, its copy can be easily visually recognized.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a copying machine, and more particularly to a copy-prevention printed matter capable of preventing forgery using a digital color copying machine, and relates to securities such as checks, gift certificates, lottery tickets and tickets. The present invention relates to a copy-prevention printed matter in which, when the document is copied by the copying machine, traces of being a copy are clearly displayed on securities counterfeited by the copying.

In addition, the copy preventive printed material of the present invention effectively prevents counterfeiting by not only a digital type but also an analog type color copier, and recently, a personal computer, a color printer and a color scanner by a general public are used. The present invention relates to a copy-prevented printed matter that can effectively prevent imitation.

[0003]

2. Description of the Related Art Various types of securities such as checks, gift certificates, lotteries and tickets are circulated and used. Needless to say, these securities have a high economic value, and therefore, it is strongly required to prevent forgery (counterfeiting). From the viewpoint of preventing counterfeiting (counterfeiting), for example, a precise tint block is provided. Forgery has become more sophisticated due to the development of digital copiers, and the color copying machines have become more easily available to the general public due to higher performance (digitalization) and lower prices. Securities can be easily forged simply by copying the securities with a copier. In addition, due to the high performance and low price of personal computers, color printers, color scanners, etc., securities can be read with a color scanner and color-coded on a personal computer. By making corrections and outputting the color-corrected content with a color printer,
Since it is becoming possible to manufacture imitation products that are closer to real products, there is a demand for copy-prevention printed materials (securities) that have been subjected to more appropriate forgery (imitation) prevention processing.

Further, in the conventional copy-prevention printed matter, the judgment of authenticity by the naked eye has been made by confirming the reproducibility of a complicated pattern or the like printed on the printed matter. In many cases, it is difficult to determine whether a printed matter is a legitimate printed matter in the conventional copy-prevention printed matter because it is often difficult to determine whether the printed matter is a counterfeit (imitation) product. Is also difficult.

According to the present invention, a general public can easily and visually determine whether a security is properly legitimate, and it is difficult to forge with a color copying machine irrespective of a digital system or an analog system. It is an object of the present invention to provide a copy-prevention print that can effectively prevent imitation using a printer and a scanner.

For example, as disclosed in Japanese Utility Model Publication No. 59-23023 as a conventional copy-prevention print,
One line group of a password pattern obtained by combining a plurality of line groups is set to 9 lines in the scanning direction of the copying machine.
Arranged so that it is within the range of 0 ° to 135 °, the other line group is arranged at a different angle from the above, and each line constituting the plurality of line groups can be reproduced by the copier By making it thin or slightly thicker, when copying, one of the password patterns located at a specific angle with respect to the scanning direction of the copier is emphasized and reproduced in a darker way, and a forgery Is determined.

[0007]

When the copy-prevented printed matter shown in the above-mentioned conventional example is copied by using, for example, a digital color copying machine, the security pattern of the printed matter is a line pattern group of the copying machine. If it is placed at an angle with high sensitivity with respect to the scanning direction, the password pattern is emphasized and reproduced in a deep copy, so that it is possible to determine that the password is a forgery.

However, if the line group of the printed matter is placed so as not to have a high sensitivity angle with respect to the scanning direction of the copying machine, the password pattern of the printed matter may be copied as it is. For this reason, the problem that the printed matter may be counterfeited and that it is difficult for the general public to determine whether the printed matter is legitimate has not been solved.

Further, since the personal identification pattern is composed of a group of lines, a high-performance personal computer, a color printer, a color scanner, or the like is used to read a copy-prevented printed matter with a color scanner, and to create or form a group of lines on a personal computer. There is also a problem that imitations closer to the real thing can be manufactured by making corrections and outputting the created or corrected contents with a color printer.

According to the present invention, regardless of a color copying machine (digital system or analog system), and regardless of the scanning direction (angle) of the copying machine, a trace of a copy is clearly evident. In addition, even for imitation using a personal computer, a color printer, and a color scanner, it is difficult to read accurate color tone and line segments with the color scanner. It is an object of the present invention to provide a copy-prevention print which is difficult to copy.

[0011]

According to a first aspect of the present invention, there is provided a copy-protected printed matter provided with a copy-protection layer comprising a plurality of areas, wherein the copy-protection layer is , And a plurality of line segments arranged in substantially the same direction within the plurality of divided areas.

According to a second aspect of the present invention, in the first aspect of the present invention, the copy protection layer is formed so that the directions of the line segments of a plurality of regions adjacent to each other are different. And

[0013] The invention according to claim 3 is the invention according to claim 1 or 2.
In the invention described in (1), the plurality of line segments in the region divided into a plurality of regions are arranged in parallel with the adjacent line segments.

According to a fourth aspect of the present invention, in the first aspect of the present invention, the plurality of line segments in the plurality of divided regions are staggered with the adjacent line segments. It is characterized by being arranged.

According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, the plurality of line segments in the region divided into a plurality of segments is the length of an adjacent line segment ( (Solid line length) are approximately the same length.

According to a sixth aspect of the present invention, in the invention of any one of the first to fourth aspects, the line segment in the region divided into a plurality of segments is the length of the adjacent line segment (solid line length). ) Are different.

According to a seventh aspect of the present invention, in any one of the first to sixth aspects of the present invention, the reflection density of the anti-copying layer measured by a reflection densitometer is 0.7 or more.

According to an eighth aspect of the present invention, in the invention according to any one of the first to seventh aspects, a length of a line segment (solid line length) in the region divided into a plurality is 0.3 mm or more. It is characterized by being.

According to a ninth aspect of the present invention, in the invention according to any one of the first to eighth aspects, the thickness (line width) of the line segment in the plurality of regions is 0.06 mm or more. It is characterized by being.

[0020] The invention described in claim 10 is the invention according to claims 1 to 9.
In the invention described in any one of the above, a copy-forgery-inhibited pattern layer is provided on the upper surface or the lower surface of the copy protection layer.

The invention according to claim 11 is the invention according to claims 1 to 1
0. The invention according to any one of 0, wherein a copy protection layer is provided at least partially.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, referring to the accompanying drawings, a detailed description will be given of a case where a copy-prevention printed material according to an embodiment of the present invention is used for gift certificate paper.

FIG. 1 is a conceptual plan view showing a gift certificate paper 100 according to an embodiment of the present invention. As shown in FIG. 1, the gift certificate paper 100 has a character “Kp” printed and formed as a copy-forgery-inhibited pattern layer 19 on a base material. The tint block 19
On the top, for example, a copy protection layer 20 partitioned by a first region 11 to an eighth region 18 having the following characteristics is formed by printing.

The copy protection layer 20 partitioned from the first area 11 to the eighth area 18 is uniformly observed on the gift certificate paper 100 as shown in FIG. The character of “Kp” constituting the layer 19 is recognized without any discomfort.

The above-mentioned first area 11 to eighth area 18
The copy protection layer 20 is divided into gift certificate paper 100
Above, as shown in FIG. 8, each of the regions adjacent to each other is constituted by a plurality of line segments having different directions (angles).

Further, it is preferable that the copy prevention layer 20 is formed by printing with a reflection density measured by a reflection densitometer of 0.7 or more. The reason for this is that when printing is performed with a reflection density of less than 0.7, a sufficient discoloration effect cannot be obtained.

As shown in FIG. 1, of the regions constituting the copy protection layer 20, the fifth region 15 to the eighth region 18
Is formed on the gift certificate paper 100 by "x"
The mark is formed with a predetermined width. The angle between the line segment in the first area 11 to the eighth area 18 and the scanning direction of the color copier in the first area 11 to the eighth area 18 in the area forming the “x” mark is 0 °. Fifth area 15 to eighth area 1
8, as shown in FIG. 2, the portions marked with “x” are copied in a dark color and copied from the first region 11 ′ to the fourth region 1.
The line segment 4 'disappears, which causes the copy 100'
Above, traces of the "x" mark clearly appear.

At this time, on the copy 100 ′, the fifth area 15 ′ to the eighth area 1, which are changed to a dark color and copied.
The copy-forgery-inhibited pattern layer 19 in the “x” mark-shaped portion overlapping with 8 ′
In the portion where the character "p" has disappeared and the line segment from the first region 11 to the fourth region 14 has disappeared, the character "Kp" clearly appears.

In the present embodiment, the copy protection layer 2
0 defines the direction of the line segment in the area so that the mark of the “x” mark appears, but is not limited to this. For example, each pattern is formed so as to form other designs, characters, or any design. A region may be configured.

The copy-forgery-inhibited pattern layer 19 is an alphabet of "Kp", but may be another pattern, character, or any design.

FIG. 3 shows an area in which the color is changed to a dark color and copied when the angle at which the gift certificate paper 100 is placed is changed with respect to the scanning direction of the copying machine. Each area is
The first area 11 to the eighth area 18 shown in FIG.
Respectively.

FIG. 3A shows the angle at which the gift certificate paper 100 is placed (with respect to the direction of the line segment in each of the first area 11 to the eighth area 18 with respect to the scanning direction of the copying machine). To 0
This shows the case where copying was performed in the state of °. In the copy 100 ′, the line segment in each of the fifth region 15 ′ to the eighth region 18 ′ is detected as an angle that is easily perceived by the copying machine, or each of the regions changes to a dark color. And the mark of “x” appears on the copy.

FIG. 3B shows the angle at which the gift certificate paper 100 is placed (with respect to the direction of the line in each of the first to eighth regions 11 to 18 with respect to the scanning direction of the copying machine). 2
This shows a case where copying is performed at 2.5 °. Copy 100 '
Since the line segment in each area from the first area 11 'to the fourth area 14' is detected as an angle that is easily perceived by the copier, each area is copied with a dark color. ,
Traces of the "x" mark appear on the copy as outlines.

FIG. 3C shows the angle at which the gift certificate paper 100 is placed (with respect to the direction of the line segment in each of the first area 11 to the eighth area 18 with respect to the scanning direction of the copying machine). 6
This shows a case where copying is performed at 7.5 °. Copy 100 '
Since the line segment in each area from the first area 11 'to the fourth area 14' is detected as an angle that is easily perceived by the copier, each area is copied with a dark color. ,
Traces of the "x" mark appear on the copy as outlines.

FIG. 3D shows the angle at which the gift certificate paper 100 is placed (with respect to the direction of the line segment in each of the first to eighth regions 11 to 18 with respect to the scanning direction of the copying machine). 9
This shows a case where copying is performed at 0 °. The copy 100 ′
Whether the line segment in each of the fifth area 15 ′ to the eighth area 18 ′ is detected as an angle that is easily perceived by the copying machine, or that each area is changed to a dark color and copied. Traces of the "X" mark appear on the copy.

As described above, with respect to the scanning direction of the copier, the directions of the line segments are aligned in substantially the same direction within the plurality of divided regions, and the direction of the line segments in each of the adjacent regions is different. Therefore, when the gift certificate paper 100 is placed at an arbitrary angle with respect to the scanning direction of the copying machine and the copy is performed, the direction of the line segment in any region is set with respect to the scanning direction of the copying machine. Since the angle is easily detected, a part of the area of the gift certificate paper 100 is changed in color to a dark color and copied, thereby making it easy for the naked eye to determine whether or not the copy 100 ′. Can be identified.

Here, the direction of the line segment in each of the first area 11 to the eighth area 18 shown in FIG. 8 is defined based on the following method.

In order to define the angle of the line segment printed in each area, it is necessary to recognize at which angle the copying machine will be at an angle that can be easily detected. Therefore, by copying concentric circles in which circles formed by a plurality of short line segments having different angles are superposed one on another, it is possible to detect an angle that is easily sensed by the copying machine in a state where all angles are covered. .

FIG. 4 shows a printed matter in which multiple concentric circles are drawn on the surface, and the printed matter is copied to detect an angle which can be easily sensed by the copying machine. Also, in FIG. 5, the areas (A to H) that are easily detected by the copying machine when the printed matter of FIG. 4 is copied are indicated by oblique lines. Further, FIG. 6 shows, as a specific example, an area in which the copy machine shown in FIG. 4 is easily perceived by the A-color 936 manufactured by Fuji Xerox Co., Ltd. at an angle.

When a printed matter on which a plurality of concentric circles are printed as shown in FIG. 4 is copied, in FIG. 5, regions which are easily sensed by the copying machine are detected in eight directions radially from the center of the copied matter. Areas detected in eight directions (A to H)
Is shown in FIG.

The angle shown in FIG. 6 is such that the running direction of the scanning line is 0 ° in FIG.
°, the upper side is detected as 90 °, and the lower side is detected as −90 °. The angle in the area E is one area on the copy, but is shown as two angles in the notation of the angle.

Therefore, by forming a plurality of line segments having different angles (directions) for each of the adjacent regions within the range of the angle shown in the above detection result, the angle of the line segment in any one of the regions can be changed. Since the angle is detected as an angle easily detected by the copying machine, the area corresponding to the angle is copied in a dark color system.

FIG. 7 (a) is a table in which the values of the angles detected in the areas (A to H) where the copying machine is easily detected are calculated, and FIG. 7 (b) uses the specified values. This is the angle of a line segment printed in the first to eighth regions 11 to 8 when the gift certificate paper 100 is formed.

As shown in FIG. 7B, the angle of the line segment printed in the fifth area 15 to the eighth area 18 is 0 °.
And 90 °, or 45 ° and 135 °.

As described above, FIG. 8 is an enlarged view showing in detail a line segment of each region of the copy protection layer 20 formed at this angle. As shown in FIG. 8, since the copy protection layer 20 is formed by forming a line segment having a different direction for each adjacent region, the direction of the line segment in any region is changed when copying is performed by a copying machine. The area detected as an easy-to-detect angle of the copying machine is changed to a dark color on the copy 100 'and copied in the area detected as the easy-to-detect angle, and the line segments in other areas disappear. Therefore, the portion discolored to a dark color system is clearly exposed, and it can be easily visually recognized that the image is a copy.

FIG. 9 is an enlarged view of one embodiment showing an arrangement state of line segments constituting each area. As shown in FIG. 9, the length and width of the line segment are defined by the solid line length indicating the length and the line width indicating the width. In addition, an area where adjacent line segments are not formed is defined by an air width indicating a distance between adjacent line segments in the length direction and a pitch indicating a distance between adjacent line segments in the width direction.

In FIG. 9A, the line segments are arranged in a staggered manner with the line segments adjacent in the width direction, and in FIG.
Line segments are arranged so as to be synchronized with adjacent line segments, and FIG. 9C shows a state where solid line lengths a and b of adjacent line segments in the length direction are arranged in different states. Have been.

Each of the above-described solid line length, line width, blank width, and pitch can be variously set in accordance with the area ratio obtained from the total area of the copy prevention printed matter and the area of all the line segments to be printed. .

<Specific Example> A copy prevention print according to the present invention will be described with reference to specific examples shown below.

The copy-forgery-inhibited pattern layer 19 and the copy protection layer 20 according to the present invention were formed by offset printing using the following inks.

Ink used Offset ink for ground pattern layer 19 Offset ink DIC Part II 2229 (trade name) manufactured by Dainippon Ink and Chemicals, Inc. Offset ink used for magenta copy protection layer 20 Offset ink manufactured by Dainippon Ink and Chemicals, Inc. DIC Part II 2426 (brand name) Purple

Gift certificate paper 100 using the above printing ink
The direction (angle) of the line segment in each region of the copy prevention layer 20 was the direction (angle) as shown in FIG. 8, and the length (solid line length) and thickness (line width) of the line segment were changed. In this case, FIG. 10 shows how each area of the copy protection layer 20 is copied by using a color copying machine according to the length (solid line length) and thickness (line width) of the line segment.

The density of the line segments of the copy protection layer 20 is adjusted so that the area ratio becomes 10%, and the line segments of each region are visually observed so that each sample can be viewed almost uniformly. Placed. The four-level evaluation shown in FIG. 10 is based on the following criteria.

X: Even when the angle of the copy protection layer 20 was changed with respect to the scanning direction of the color copying machine, each area was copied with the same color tone, and the copy protection effect was not obtained regardless of the scanning direction. Δ: By changing the angle of the copy preventing layer 20 with respect to the scanning direction of the color copying machine, a part of the purple copy preventing layer 20 is slightly discolored to a dark color, and a part of the copy preventing layer 20 is discolored. Area was lost and copied, and a copy preventing effect was obtained depending on the scanning direction. ：: By changing the angle of the copy protection layer 20 with respect to the scanning direction of the color copying machine, a part of the purple copy protection layer 20 is changed to a dark color, and a part of the copy protection layer 20 is discolored. The area was lost and the image was copied, and a copy preventing effect was obtained depending on the scanning direction. ：: Even if the angle of the copy protection layer 20 was not changed with respect to the scanning direction of the color copying machine, the purple copy protection layer 20 changed color to a dark color and was copied, and a copy prevention effect was obtained regardless of the scanning direction. .

According to FIG. 10, for example, the length of the line segment (solid line length) is set to 0. 0 depending on the line segment length (solid line length) and thickness (line width) of the region constituting the copy protection layer 20. When the thickness is 4 mm or more, and when the thickness (line width) is 0.08 mm or more, at least a part of the region constituting the purple copy protection layer 20 is changed to a dark color and copied, and the copy protection effect is obtained. Was obtained.

At this time, although the lengths and thicknesses of the lines constituting the copy protection layer 20 are the same, a part of the area is discolored to a dark color and a part of the area is lost. Was confirmed.

Therefore, depending on the length (solid line length) and thickness (line width) of the line segment of the area constituting the copy protection layer 20, when copying is performed by a color copying machine, depending on the scanning direction of the color copying machine, A part of the region where the purple copy-prevention layer 20 is formed is changed to a dark color and copied, and the length of the line segment (solid line length) and the thickness (line width) are set to a certain value or more. It has been confirmed that, regardless of the scanning direction of the color copying machine, a part of the region constituting the purple copy preventing layer 20 is changed to a dark color and copied, and a copy preventing effect can be obtained.

The above-described embodiment shows a preferred embodiment of the present invention, and various modifications can be made without departing from the gist of the present invention.

[0059]

According to the present invention, since the copy protection layer has the above-described structure, the copy protection print is not easily forged by simply copying the copy protection print by a copying machine. Is read with a color scanner, corrected on a personal computer, and the corrected content is output on a color printer. Can not be read, so that a more appropriate forgery (counterfeiting) prevention method can be provided.

Further, in the conventional copy-prevention printed matter, the judgment of authenticity by the naked eye has been made by checking the reproducibility of a complicated pattern or the like printed on the printed matter, but the experience of the person making the judgment is In many cases, it is difficult to judge whether or not a copy is a counterfeit product (imitation product). As a result, in a conventional copy-prevention print product, it is generally determined whether or not the print product is a legitimate print product. It was difficult for the public,
In the copy-protected printed matter of the present invention, a part of the plurality of regions constituting the copy-protection layer 20 is discolored to a dark color, and a part of the region disappears and is copied, so that the authenticity can be verified by the naked eye. The judgment can be made easily.

[Brief description of the drawings]

FIG. 1 is a conceptual plan view showing a gift certificate sheet according to an embodiment of the present invention.

FIG. 2 is a conceptual plan view of a copy obtained by copying the gift certificate paper of FIG. 1;

FIG. 3 is a conceptual plan view showing a copy example when the gift certificate paper of FIG. 1 is copied at an arbitrary angle;

FIG. 4 is a conceptual plan view of a printed material on which concentric circles are printed.

FIG. 5 is a conceptual diagram showing an area which is easily perceived by the copying machine when the printed matter of FIG. 4 is copied.

FIG. 6 is a table showing the easily perceivable regions of FIG. 5 by angles.

FIG. 7 is a table showing a center value of each angle of the region shown in FIG. 6;

8 is an enlarged view of each area when the angle of the line segment in FIG. 7 is formed.

FIG. 9 is an enlarged view showing an arrangement state of line segments.

FIG. 10 is a table showing a copy effect of a copy-prevention print according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 1st area 12 2nd area 13 3rd area 14 4th area 15 5th area 16 6th area 17 7th area 18 8th area 19 Background pattern layer 20 Copy prevention layer 100 Gift certificate Paper

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Hideo Nagasawa 4-14-12 Koishikawa, Bunkyo-ku, Tokyo Kyodo Printing Co., Ltd. F-term (reference) 2C005 HA04 HB10 HB12 HB13 JB19 JB26 KA57 2H113 AA06 BA05 BB02 BB22 CA39 CA40 EA01 EA07

Claims (11)

[Claims] 1. A copy-protected printed matter provided with a copy-protection layer consisting of a plurality of partitioned areas, wherein the copy-protection layer has a plurality of lines aligned in substantially the same direction in the plurality of partitioned areas. A copy-prevention printed matter characterized by comprising: 2. The copy-prevention printed matter according to claim 1, wherein the copy-prevention layer is formed so that the direction of a line segment of the plurality of divided areas adjacent to each other is different. 3. The copy-protected printed matter according to claim 1, wherein the plurality of line segments in the plurality of divided areas are arranged in parallel with the adjacent line segments. 4. The copy-protected printed matter according to claim 1, wherein the plurality of line segments in the plurality of divided regions are arranged in a staggered manner with adjacent line segments. 5. The method according to claim 1, wherein the plurality of line segments in the plurality of divided regions have substantially the same length of a line segment adjacent thereto (solid line length). A copy-protected printed matter according to any one of the above. 6. A line segment in the plurality of divided areas,
5. The copy preventive printed matter according to claim 1, wherein the lengths of the adjacent line segments (solid line lengths) are different. 7. The copy preventive printed matter according to claim 1, wherein a reflection density of the copy preventive layer measured by a reflection densitometer is 0.7 or more. 8. The copying apparatus according to claim 1, wherein a length (solid line length) of the line segment in the plurality of divided areas is 0.3 mm or more. Prevent printed matter. 9. The copying apparatus according to claim 1, wherein a thickness (line width) of a line segment in the plurality of divided areas is 0.06 mm or more. Prevent printed matter. 10. The copy-protected printed matter according to claim 1, wherein a copy-forgery-inhibited pattern layer is provided on an upper surface or a lower surface of the copy-protection layer. 11. The copy-protected printed matter according to claim 1, wherein the copy-protection layer is provided at least in part.