JP5527528B2 - Anti-counterfeit printed matter - Google Patents

Description

  The present invention relates to an anti-counterfeit printed matter that requires prevention of counterfeiting or copying of banknotes, stock certificates, securities such as bonds, various certificates and important documents.

  In general, various technologies have been applied to valuable printed matter of certificates in order to provide an effect of preventing forgery. However, in recent years, forgery of certificates has been accompanied by the improvement in image quality of color copiers and computerization of color platemaking technology. Technology tends to diversify. The accompanying measures to prevent forgery of certificates have been dealt with by upgrading them. However, on the other hand, the manufacturing cost for anti-counterfeiting measures also rises, and it is expensive to authenticate, such as introducing special equipment consisting of special machinery and equipment to obtain an environment for confirming the anti-counterfeit effect was there.

  As a useful method for enabling authenticity determination at low cost, there is a technique in which a discrimination tool is stacked on a printed material. In other words, an invisible image is expressed as a visible image by overlaying a discriminating tool on a printed material on which an invisible image is applied. The main form of the discriminating tool is a transparent sheet printed with a parallel line screen (hereinafter referred to as “ten thousand”). Line filters ”) or lenticular lenses. There are mainly two types of techniques for expressing an invisible image using this discriminator, and there are point phase modulation and line phase modulation.

  A printed material on which a latent image appears by superimposing such discriminating tools composed of line filters, and its true / false discrimination method include a background image portion printed with a line (or halftone) line, and a background image. There is a printed matter having a latent image portion printed with a line (or halftone dot) line having a phase different from that of the portion. The background image portion and the latent image portion of the printed matter are difficult to see at a glance, but when the line filter is superimposed on the printed matter at a predetermined position, the background image portion and the latent image portion are visible. There is known a method in which a part can be divided and visually recognized.

  As an example of dot phase modulation (Dot phase modulation), a printed material on which a phase-modulated pattern is formed in a first direction and a second direction, a first direction of the printed material, and a line shape of a line filter The first multi-tone image formed by superimposing the line filters so as to match the direction of the pattern, and the angle at which the line filters are superimposed coincide with the second direction of the printed matter. In other words, there is a printed matter on which a second multi-tone image is formed and an image forming method (for example, see Patent Document 1).

  In addition, as an example of dot phase modulation, each dot constituting a dot pattern in which an image appears by overlapping a lens array (fly eye lens, honeycomb lens, lenticular lens, etc.) on a base material. However, if the printed material is composed of halftone dots having at least two types of screen lines and at least two types of screen angles, the dot area ratio of each dot constituting the dot pattern is the same if it is genuine. Therefore, an invisible image appears by overlapping the lens array, and in the case of a copy, the dots that are reproduced with the size of screen lines or the dot angle are crushed by copying and the dot density changes. There is a printed matter in which an image different from the invisible image appears (see, for example, Patent Document 2).

As an example of overseas dot phase modulation, there is an isogram from Astron Design (Netherlands) (for example, see page 1340 of Non-Patent Document). As shown in FIG. 24 (a), a fine halftone dot as shown in FIG. 24 (b) is obtained by enlarging a flat pattern having a uniform density at first glance. When an invisible image is applied according to the phase and a dedicated sheet is overlaid on the printed material, the image is formed into a negative-positive image as shown in FIG. 24 (c) or FIG. 24 (d). However, since this is a flat pattern having a uniform density, an image cannot be clearly expressed.

  In addition, the applicant of the present application has filed a patent application relating to a printed matter using dot phase modulation. This is a latent image printed matter in which a plurality of pixels of the same color are regularly arranged on a substrate to form two latent image patterns, and the phases of the plurality of pixels are shifted in a first direction. A first latent image pattern (invisible image) formed by the first region arranged in this manner, and a second latent image pattern (invisible image) formed by the second region printed with functional ink (for example, And Patent Document 3).

  As an example of line phase modulation, the line phase is shifted by a half pitch with respect to the line pattern having the line part and the non-line part on the base material and having the same pitch and width. A plurality of types of latent image line patterns each having a latent image portion formed in this manner are printed matter having latent images printed by being superimposed at different angles, and the plurality of types of latent image line patterns are There are prints each having a different color, and a latent image portion that is visualized by superimposing a film having the same pitch as the line pattern of the print on the plurality of invisible images (for example, , See Patent Document 4).

Moreover, HIT (Hidden Image Technology) of Yura (Hungary) is a printed material using overseas line phase modulation (see page 1341). As shown in FIG. 25 (a), when inflated in a flat pattern having a uniform density at first glance, an invisible image is formed due to the phase of fine lines as shown in FIG. 25 (b). When a dedicated sheet is superimposed on the printed material, a visible image is formed in either a negative or positive shape as shown in FIG. 25 (c) or FIG. 25 (d). In addition, in the printed matter of FIG. 25 (a), an invisible image may be confirmed even with normal viewing. Therefore, as shown in FIG. 25 (b), a part of the line width of the line is set as a camouflage pattern. A visible image is provided by changing. Moreover, you may provide a visible image with a white drawing line. However, this camouflage pattern has a problem in that when the invisible image is made visible by overlapping a dedicated sheet, the camouflage pattern also appears as a visible image at the same time. .

  In general, a pattern formed by dot phase modulation or line phase modulation has a flat shape.

  In addition, on the image forming sheet, the minimum unit blocks b1, b2, b3, b4,..., Which are equally divided into m columns and n rows in the unit block, are respectively set to 1 unit pixel g1, g2, g3, g4. Are formed as latent image images G1, G2, G3, G4,..., And unit pixels g1, g2, g3, g4,. A line pattern composed of lines, each having a line pitch p of pitches p1, p2, p3, p4,... And a line angle θ of each of angles θ1, θ2, θ3, θ4. An anti-counterfeit image forming body constituted by any one of the different line patterns, each of which is constituted by a line, and constitutes one unit pixel g1, g2, g3, g4,. Line line pattern and line with the same line pitch p and line angle θ. The latent image images G1, G2, G3, G4,... Are visualized by superimposing the visualized line sheets formed on the transparent sheet with different configured line patterns. An anti-counterfeit image forming body has been proposed (see, for example, Patent Document 5).

  The anti-counterfeit image forming body according to Patent Document 5 visualizes a plurality of latent image images by changing the pitch and angle of the line pattern in each unit pixel. In order to visualize only a uniform background pattern and to further visualize the latent image, a transparent sheet that requires a pitch and an angle corresponding to the line pattern of the unit pixels constituting the latent image is necessary. Thus, there was a problem that a plurality of discriminating tools had to be prepared.

  In addition, the techniques disclosed in Non-Patent Document 2 and Patent Documents 1 to 5 always have to carry a discriminator, and there is a demerit that an authenticity cannot be determined in an environment where the discriminator cannot be prepared.

  On the other hand, securities such as banknotes, stock certificates, bonds, various certificates, and important documents have long been a forgery prevention technique called latent image intaglio. The feature of this technique is that it is possible to easily determine authenticity without preparing a separate determination tool. The principle of this latent image intaglio is effective by using image lines that are raised and printed with intaglio ink or the like. For example, as shown in the printing base material 11 in FIG. 26, the image line group 13 forming the background of the printed pattern 12 and the image line group 14 forming the latent image are line-shaped having a difference in two directions of 90 degrees. It is arranged by the drawing line. When the printed surface of the printing substrate 11 is observed from the front, the applied latent image pattern “P” cannot be easily recognized. However, as shown in FIG. For example, in a raised image line such as intaglio ink, the image line group 13 overlaps with adjacent image lines depending on the viewing angle, and therefore has a lower brightness (high density) than the image line group 13 that forms the actual latent image portion. As a result, the latent image pattern “P” appears as a visible image. Moreover, even if it is not a bi-directional line drawing, it can also be realized by a unidirectional line due to the difference in the height of the intaglio ink (see, for example, Patent Document 6).

In addition, the inventors of the present application applied to a material having a concavo-convex shape formed by embossing various line patterns representing patterns by partially different angles, or relief patterns, or both patterns. Depending on the color of the material and the other different colors other than colorless and transparent, various line strokes with a constant spacing, or halftone strokes, or both strokes other than the above-mentioned irregular shape pattern When viewed from the front by printing parallel or inclined with respect to the parts constituting the parts, the various line-drawing lines, or the halftone-dotting lines, or both drawing lines composed of straight lines with the predetermined intervals. The pattern formed by the concavo-convex shape is easy due to the non-constant positional relationship generated between the concavo-convex shape and the printed image line having the constant interval when observed from an oblique direction. In Can sure, when observed from the opposite diagonal direction, light and dark symbols already filed a latent image pattern formed body, characterized in that it can be confirmed inverted (see Patent Document 7).

This technology uses the concave and convex shape of the base material to form specific characters, designs, etc. only when observing from a certain direction when determining authenticity, and it is very easy to create specific characters, designs, etc. It is possible to produce and provide a latent image pattern formed body that can recognize the presence or absence and is extremely difficult to counterfeit and tamper. In counterfeiting using a color copier and photoengraving, it is impossible to extract uneven shapes, and only colored print lines can be copied, so characters and designs cannot be recognized. This latent image pattern formed body has a relatively large design and is used for securities having a large use area, and the one by scratching is particularly effective for use in valuable printing products manufactured in large quantities.

Japanese Patent No. 4132122 Japanese Patent No. 4013450 Japanese Patent Application No. 2007-43171 JP 2004-174997 A JP 2007-015120 A Japanese Utility Model Publication No. 02-212264 Japanese Patent No. 2615401

Optical Security and Counterfeit Deterrence Techniques IV Vol.4677 (by SPIE-The International Society for Optical Engineering)

  For banknotes, stock certificates, securities such as bonds, various certificates and important documents, a lot of lines with anti-counterfeiting effects are required on the printed surface. However, the printing surface is limited, and an anti-counterfeiting measure that has an effective action by a plurality of authenticity determination methods even with a small printing area is desired.

  Further, in the above-described conventional printed matter, there is a possibility that the latent image pattern is visually recognized in advance before the discriminating tool is overlapped. Also, in order to prevent the problem that the latent image pattern is viewed in advance, it is necessary to reduce the image line or halftone dot and reduce the deviation width between the latent image pattern and the background pattern. There is a problem that the visibility of the latent image pattern is inferior when the tools are stacked. Further, the image lines or halftone dots themselves of the printed material did not have finger sensitivity.

  Furthermore, even if some visible image is provided, it is composed of a simple white line as in the printed matter described in Patent Document 2, and thus there is a problem that visibility when an invisible image is expressed is hindered. . Further, there are some that require a plurality of discriminating tools such as the printed matter described in Patent Document 5.

  In view of the above circumstances, the present invention makes it possible to easily determine whether a discriminator is used or not using a discriminator by providing a counterfeit prevention effect by a plurality of authenticity determination methods. Even when used, it forms an invisible image that can be clearly expressed, and it is difficult to visually recognize an invisible image in advance before overlapping the discriminating tool without reducing the image line or halftone dot and the shift width, and It is an object of the present invention to provide a forgery prevention printed matter in which visibility is not hindered by a region other than an invisible image when an invisible image is developed.

  In the anti-counterfeit printed matter including the first invisible image and the second invisible image, the present invention provides a first convex line having a first width and height on the printing substrate and a second on the printing substrate. Second convex lines having the same width and height are arranged in the same direction at the same pitch, and the phase of the pitch of the first convex line and the pitch of the second convex line The first invisible image is formed with a phase shift, and the first invisible image has a first background image portion and a first latent image portion, and the first background The image portion is formed by one of the first convex line or the second convex line, and the first latent image portion is formed by the other line, A plurality of image lines are arranged on at least a part of one convex line and / or on at least a part of the second convex line, Are formed in a first direction and a second direction, and the plurality of lines arranged in the first direction are the first convex line and the second direction. Are arranged at the same pitch in the same direction as the convex line, and the image lines arranged in the second direction are the first image line and the second image line arranged at a predetermined pitch. The second invisible image is formed with a difference between the phase of the pitch of the first image line and the phase of the pitch of the second image line, and the second invisible image is Two background image portions and a second latent image portion, and the second background image portion is formed by either one of the first image line or the second image line, The second latent image portion is an anti-counterfeit printed matter formed by the other image line.

  Further, according to the present invention, the image line arranged in the second direction has a connection image line that connects the centers or approximately the centers of the image lines, and the image line width of the connection image line An anti-counterfeit printed matter characterized by being narrower than the line width of the line.

  In the present invention, the first image line and the second image line are formed in a first image line unit and a second image line unit which are arranged in a matrix without vertical and horizontal gaps, The first image line unit and the second image line unit have the same size, the first image line is formed in the first image line unit, and the second image line unit is formed in the second image line unit. The position of the first image line formed in the first image line unit and the second image line formed in the second image line unit, in which the second image line is formed. The relationship is an anti-counterfeit printed matter characterized by having a phase shift by being arranged at different positions.

  Further, according to the present invention, the connection image line, the first image line, and the second image line are arranged in a first image line unit and a second image line unit arranged in a matrix without vertical and horizontal gaps. The first image line unit and the second image line unit have the same size, and the connection image line and the first image line are formed in the first image line unit. The connection image line and the second image line are formed in the second image line unit, and the connection image lines arranged in the first image line unit and the second image line unit are arranged. The position is linearly formed in the horizontal direction of the unit from a position of 1/2 of the vertical direction of the unit, and the first image line disposed in the first image line unit, and the second The positional relationship of the second image line arranged in the image line unit is arranged at a different position. A forgery prevention printed matter according to claim 2, wherein a phase shift between.

  Further, according to the present invention, a contour region of the second invisible image has a third area that is half or substantially half of the first image line so that the second invisible image is not visually recognized in advance. A forgery-preventing printed matter, characterized in that a fourth image line comprising an image line and an image area that is half or substantially half of the second image line is formed.

  Also, the present invention provides the first image line unit in which the first image line, the second image line, the third image line, and the fourth image line are arranged in a matrix without vertical and horizontal gaps. Are formed in the second drawing unit, the third drawing unit, and the fourth drawing unit. The first drawing unit and the second drawing unit have the same size. The third image line unit and the fourth image line unit are formed from an image line unit having a size twice as large as that of the first image line unit and the second image line unit in the horizontal direction. The first image line is formed in the first image line unit, the second image line is formed in the second image line unit, and the third image line unit A first image line and a third image line are formed, and the first image line and the third image line are formed in the fourth image line unit. A forgery prevention printed matter characterized in that the second image line and the fourth image line is formed.

  Further, according to the present invention, the connection image line, the first image line, the second image line, the third image line, and the fourth image line are arranged in a matrix without vertical and horizontal gaps. Formed in one image line unit, in the second image line unit, in the third image line unit, and in the fourth image line unit, and the first image line unit and the second image line unit are The third image unit and the fourth image line unit have the same size, and are twice as large in the lateral direction as the first image line unit and the second image line unit. The connection image line and the first image line are formed in the first image line unit, and the connection image line and the second image line are formed in the second image line unit. A line is formed, and the connection drawing line, the first drawing line and the third drawing line are formed in the third drawing line unit. And the connection drawing line, the first drawing line, the second drawing line, and the fourth drawing line are formed in the fourth drawing unit. It is printed matter.

  Further, the present invention provides a position of the connection drawing line arranged in the first drawing line unit, the second drawing line unit, the third drawing line unit, and the four drawing line units. Is formed linearly in the horizontal direction of the unit from a position of 1/2 of the vertical direction of the unit, and the position of the first image line arranged in the first image line unit is the first image line. The position of the second image line arranged in the second image line unit is on the right side with respect to the center of the second image line unit. The positions of the first image line and the third image line that are arranged and arranged in the third image line unit are located on the left side with respect to the center of the third image line unit. Before an arrangement is made and the first drawing line is arranged on the right side and arranged in the fourth drawing unit. The positions of the first image line, the second image line, and the fourth image line are arranged such that the first image line is arranged on the left side with respect to the center of the third image line unit, and the position on the right side is The anti-counterfeit printed matter is characterized in that a second image line is arranged and the fourth image line is arranged at the center or substantially the center.

  In the invention, it is preferable that the first invisible image has a relief shape in which the first convex line and the second convex line are formed by continuous lines. It is.

  Further, the present invention is characterized in that the first convex line and the second convex line are formed by transparent ink, ink of the same color as the printing base material, embossing or filling. This is an anti-counterfeit printed matter.

According to the anti-counterfeit printed matter of the present invention, on the limited printed surface of securities such as banknotes, stock certificates, bonds, various certificates and important documents, the first invisible image provided on the printed matter and Each of the second invisible images can confirm a remarkable anti-counterfeiting effect in each of two types of authenticity determination methods, that is, when the determination tool is not used and when the determination tool is used. In addition, even for precious printed matter in which the area for printing anti-counterfeiting technology is limited, it is possible to embed two types of invisible images with different methods of revealing in the same area, so the security is high. Can be printed matter.

  As a method that does not use a discriminator, when the printed material is observed from the front, the first invisible image is formed so as not to impair the design of the pattern composed of the line drawing expression, but the printed material is observed in perspective. In this way, a forgery-preventing printed matter in which the first invisible image appears as a visible image is provided, and the image line itself has a height so that it has finger sensitivity, and is true depending on the presence or absence of finger sensitivity. False discrimination is possible.

  On the other hand, when using a discriminator, a plurality of lines are provided to alleviate the density imbalance. Since the second invisible image is difficult to be visually recognized, it is difficult for the counterfeiter to determine where the second invisible image is formed on the printed matter, and therefore, it is not easily copied.

  In addition, since the second invisible image is difficult to be seen in advance before the discriminating tool is overlapped without reducing the image line, the halftone dot, and the shift width, the predetermined in the negative and positive areas of the second invisible image Since the shift width can be formed, a clear invisible image can be visually recognized when the discriminating tools are overlapped, so that the true / false discriminator can easily discriminate true / false.

Explanatory drawing which showed the state which can visually recognize a different invisible image by two types of observation environments in the printing base material 1, respectively. FIG. 3 is a perspective view in which a printing substrate 1 and a discriminator 2 are partially cut out and enlarged for display. An explanatory view showing a state in which the printed pattern 3 is viewed from the front in the observation direction T1 shown in FIG. 1A and an oblique view of the printed pattern 3 in the observation direction T2 shown in FIG. Explanatory drawing which showed the state seen. Explanatory drawing which expanded partially the basic drawing line structure for visualizing the 2nd invisible image 8b with the discrimination tool 2. FIG. The image line unit A shown in FIG. 4A and the image line unit B shown in FIG. 4B are continuously and regularly arranged in a matrix without vertical and horizontal gaps in the printed pattern 3 on the printed matter. Explanatory drawing which showed the positional relationship made. The discriminator 2 is superimposed on the printed pattern 3 on the printing substrate 1 so that the line L1 and the center line of each lens coincide with the printed pattern 3, and the state observed visually from the front is shown. FIG. The discriminator 2 is superimposed on the printed pattern 3 on the printing substrate 1 so that the line L2 and the center line of each lens coincide with the printed pattern 3, and the state observed visually from the front is shown. FIG. Explanatory drawing which expanded partially the basic drawing line structure for visualizing the 2nd invisible image 8b with the discrimination tool 2. FIG. Explanatory drawing which showed the positional relationship by which the image line unit C of Fig.8 (a) and the image line unit D of FIG.8 (b) are arrange | positioned at the outline of the 2nd invisible image 8b. FIG. 3 is a perspective view in which a printing substrate 1 and a discriminator 2 are partially cut out and enlarged for display. An explanatory view showing a state in which the printed pattern 3 is viewed from the front in the observation direction T1 shown in FIG. 1A and an oblique view of the printed pattern 3 in the observation direction T2 shown in FIG. Explanatory drawing which showed the state seen. Explanatory drawing which expanded partially the basic drawing line structure for visualizing the 2nd invisible image 8b with the discrimination tool 2. FIG. The printed line unit A shown in FIG. 12A, the drawn line unit B shown in FIG. 12B, the drawn line unit C shown in FIG. 12C, and the drawn line unit D shown in FIG. Explanatory drawing which showed the positional relationship arrange | positioned continuously and regularly without vertical and horizontal gaps in the printed pattern 3 on the upper side. The discriminator 2 is superimposed on the printed pattern 3 on the printing substrate 1 so that the line L1 and the center line of each lens coincide with the printed pattern 3, and the state observed visually from the front is shown. FIG. The discriminator 2 is superimposed on the printed pattern 3 on the printing substrate 1 so that the line L2 and the center line of each lens coincide with the printed pattern 3, and the state observed visually from the front is shown. FIG. Explanatory drawing which showed the shape of the convex part 4. FIG. Explanatory drawing which showed the shape of the convex part 4. FIG. Explanatory drawing which showed the shape of the shift | offset | difference of the convex part 4. FIG. Explanatory drawing of arrangement | positioning of a 1st drawing line and a 2nd drawing line. Explanatory drawing of arrangement | positioning of a 1st drawing line, a 2nd drawing line, and a connection drawing line. Explanatory drawing of the drawing line shape of the 1st drawing line and the 2nd drawing line. Explanatory drawing of arrangement | positioning of a 3rd drawing line and a 4th drawing line. Explanatory drawing of the relationship of the angle which the convex part 4 and the drawing line 5 overlap. An example of authenticity determination method using overseas point phase modulation. An example of authenticity determination method using overseas line phase modulation. Explanatory drawing at the time of observing the printing surface of the forgery prevention technique called the conventional latent image intaglio from the front. Explanatory drawing at the time of inclining and observing the printing surface of the forgery prevention technique called the conventional latent image intaglio.

  In the present invention, different invisible images can be visually recognized by two types of observation environments in the printing substrate 1 as shown in FIG. FIG. 1A shows a state in which the printed pattern 3 applied in the printing substrate 1 is observed at an oblique angle, and FIG. 1B is applied in the printing substrate 1. A state in which the discriminator 2 is superposed on the printed pattern 3 and observed is shown. In the observation direction T1 shown in FIG. 1 (a), the visible image 6 when the printed pattern 3 is viewed from the front is visually recognized, and in the observation direction T2 shown in FIG. 1 (a), the first invisible image 8a is seen. Visible as a visible image. On the other hand, in the observation direction T1 shown in FIG. 1B, the second invisible image 8b is visually recognized as a visible image by superimposing the discriminator 2 on the printing substrate 1. The discriminating tool 2 is a line filter or a lenticular lens in which a plurality of straight lines are formed along a single line in a transparent filter.

  Hereinafter, forgery prevention printed matter according to Embodiments 1 to 3 of the present invention will be described with reference to the drawings. However, the present invention is not limited to the first to third embodiments described below, and includes various other embodiments within the scope of the technical idea described in the claims. It is.

(1) Embodiment 1
The configuration on the printing substrate 1 that exhibits the action shown in FIG. 1 will be described in detail with reference to FIG. FIG. 2 is a perspective view in which the printing substrate 1 and the discriminator 2 in the present invention are partially cut out and enlarged. As shown in FIG. 2, the surface of the printing substrate 1 is provided with a horizontal line-shaped convex portion 4 having an arbitrary width w1 and height h. The protrusions 4 are continuously arranged in the vertical direction with a predetermined pitch P. However, as shown in FIG. 2, the phase shifts in the vertical direction while partially maintaining the predetermined pitch P. Have a relationship. This phase shift is preferably about half of the predetermined pitch P, and the width w1 and height h of the convex portion 4 are not particularly limited.

  Further, the image lines 5 constituting the printed pattern 3 are continuously arranged in the vertical direction at the same predetermined pitch as the convex portions 4 and printed on the convex portions. A specific configuration of the image line 5 will be described in detail later.

  FIG. 3A shows a state in which the printed pattern 3 is viewed from the front in the observation direction T1 shown in FIG. 1A. The visible image 6 shown in FIG. Is visually recognized. On the printing substrate, the protrusions 4 are continuously arranged in the vertical direction with a predetermined pitch P. Since this convex part 4 is the same color as the printing substrate 1, an observer can easily perform the first invisible image formed and provided in a relief shape by the phase shift of the convex part 4, for example, the letter “A” of the alphabet. This is not visible. Further, an image line 5 continuously printed on the convex portion 4 at the same predetermined pitch as the convex portion 4 is printed. Accordingly, in FIG. 3A, only the visible image 6 that is the same as the observation direction T1 shown in FIG. In addition, it is desirable that the printing substrate 1 and the convex portion 4 are white or a color with high brightness, and further, the printing color of the image line 5 does not limit hue, brightness, and saturation at all. It is desirable that the lightness is lower than the lightness of 1 and the convex part 4 and that the lightness difference is as far as possible (high contrast).

  FIG. 3B shows a state in which the printed pattern 3 is viewed obliquely in the observation direction T2 shown in FIG. 1A, and the first invisible image 8a is visually recognized as a visible image. It is a thing. Due to the height h of the convex portion 4, the image line 5 as viewed from the observer is separately observed as a portion printed on the front slope of the convex portion 4 and a portion printed on the slope behind the convex portion 4. That is, the first invisible image formed and provided by the phase shift of the convex portion 4, for example, the alphabet “A” becomes obvious and becomes a visible image state. Thus, the observer can make the first authenticity determination by viewing the printing substrate 1 from an oblique direction.

FIG. 4 is an explanatory diagram in which a basic image line configuration for visualizing the second invisible image 8b by the discriminator 2 is partially enlarged. The present invention is composed of two units, an image line unit A and an image line unit B shown in FIGS. 4 (a) and 4 (b). The image line unit A includes a connection image line 5e and an image line unit 5a, while the image line unit B includes a connection image line 5e and an image line unit 5b. The horizontal overall length of the image line unit A and the image line unit B is equal to the dimension S of the groove provided in the discriminator 2 shown in FIGS. Lines L1 and L2 are directions of grooves provided in the discriminator 2 shown in FIGS. 1 and 2, and the distance between the lines L1 and L2 is about half of the dimension S. Then, the image line unit A and the image line unit B shown in FIGS. 4A and 4B form a pair of on / off in the horizontal direction on the surface of the printed matter, and a desired rule. It is arranged with. The shapes of the image line unit 5a and the image line unit 5b in the image line unit A and the image line unit B illustrated in FIGS. 4A and 4B are not limited to the shapes illustrated in FIG. Other shapes may also be used. An example of the shape of the image line portion 5a and the image line portion 5b is shown in FIGS. Further, the width w2 of the image line portion 5 is arbitrary, but approximately half of the pitch P is taken as a guide.

FIG. 5 shows the image line unit A in FIG. 4A and the image line unit B in FIG. 4B continuously in a matrix pattern without vertical and horizontal gaps in the printed pattern 3 on the printed material, and It is explanatory drawing which showed the positional relationship arrange | positioned regularly. Thereby, the area where one of the image line unit A and the image line unit B is arranged forms the image portion of the second invisible image 8b, and the area where the other image data is arranged is the background of the second invisible image 8b. The part is formed. In FIG. 5, the portion provided with the second invisible image 8 b, for example, the alphabet “B” is simply shown by a thick solid line so as to be understood.

  Further, the discriminating tool 2 shown in FIG. 1 and FIG. 2, for example, made of a lenticular lens is printed on the printing pattern 3 so that the line L1 or the line L2 and the center line of each lens coincide with each other. FIGS. 6 and 7 show a state in which the printed pattern 3 on the material 1 is superimposed and visually observed from the front. When the center line 7 of the lenticular lens is at the position shown in FIG. 6A so as to coincide with the line L1 in FIG. 4, the image line portion 5a is located on the center line 7. Since the image portion 5a positioned at the center line 7 appears to expand due to the characteristics of the lenticular lens, the second invisible image 8b is visually recognized as a visible image of a positive figure as shown in FIG. It becomes expressed. When the center line 7 of the lenticular lens is at the position shown in FIG. 7A so as to coincide with the line L2 in FIG. 4, the image line portion 5b is located on the center line 7. . Since the image line portion 5b located at the center line 7 appears to expand due to the characteristics of the lenticular lens, the second invisible image 8b is visually viewed as a negative image as shown in FIG. 7B. It becomes expressed. That is, the second invisible image 8b appears as a visible image that looks like a negative-positive image.

(2) Embodiment 2 (concentration relaxation)
Further, in order to make the second invisible image 8b in FIG. 1 invisible in the observation direction T1, in addition to the image line units A and B shown in FIG. 4, the image shown in FIG. It is desirable to add line units C and D. That is, in the image line 5 constituting the second invisible image 8b, the image line unit A and the image line unit B shown in FIG. 4 and the image line unit C and the image line unit D shown in FIG. By being configured in a desired arrangement, further invisibility is achieved.

The image line units C and D shown in FIG. 8 are twice as large as the image line units A and B shown in FIG. An image line unit 5a and an image line unit 5c are arranged in the image line unit C shown in FIG. 8A, and an image line unit 5a and an image line unit 5b are arranged in the image line unit D shown in FIG. In addition, an image line portion 5d is arranged. Further, the image line portion 5c arranged in the image line unit C in FIG. 8A has an image area which is half or substantially half of the image line portion 5a similarly arranged in the image line unit C. Further, the image line unit 5c is arranged at the approximate center between the other image line unit 5b arranged in the image line unit C and the image line unit 5a. That is, the center of the image line portion 5c is arranged at a position of about 75% of the dimension S on the left side when viewed from the center of the image line portion 5a. On the other hand, the image line portion 5d arranged in the image line unit D in FIG. 8B has an image area which is half or substantially half of the image line portion 5a or image line portion 5b also arranged in the image line unit D. is there. Further, the image line portion 5d is arranged at the approximate center between the image line portion 5a and the image line portion 5b arranged in the image line unit D. That is, the center of the image line portion 5d is disposed at a position about 75% of the dimension S on the right side as viewed from the center of the image line portion 5a.

  As described above, FIG. 5 shows the image line unit A shown in FIG. 4A and the image line unit B shown in FIG. 4B in the printed pattern 3 on the printed material without any vertical and horizontal gaps. It is explanatory drawing which showed the positional relationship arrange | positioned regularly and regularly. In FIG. 5, it is simply shown by a thick solid line so that a portion provided with the second invisible image 8 b can be understood. Therefore, in order to maintain the continuity of the line groups included in the line unit A and the line unit B, the line unit C shown in FIG. 8A and the line unit shown in FIG. The line unit D is arranged on at least part of the contour of the second invisible image 8b.

FIG. 9 is an explanatory diagram showing the positions of the image line unit C and the image line unit D on the printed pattern 3 based on the conditions for arranging them at desired positions. First, the place where the image line unit C is arranged is a place where the image line unit A is on the right side and the image line unit B is adjacent on the left side in the horizontal direction (longitudinal direction of the image line 5 shown in FIG. 1). The image line unit C is arranged in That is, the place where the image line unit C is arranged is arranged on the left side which is the outline of the second invisible image 8b. On the other hand, the place where the drawing unit D is arranged is a place where the drawing unit A is on the left side and the drawing unit B is on the right side in the horizontal direction (longitudinal direction of the drawing line 5 shown in FIG. 1). The image line unit D is arranged in That is, the place where the image line unit D is arranged is arranged on the right side which is the outline of the second invisible image 8b. As a result, the second invisible image 8b can be further invisible.

(3) Embodiment 3
In the first and second embodiments, the image line units A and B shown in FIG. 4 and / or the image line units C and D shown in FIG. 8 are arranged in a matrix without vertical and horizontal gaps. Since the line 5 is laterally connected, the printed pattern 3 has a line shape. However, the configuration of the image line 5 exhibiting the effect of the present invention is not necessarily a line shape, and may be configured by points (dots) arranged at a predetermined pitch.

  On the other hand, as shown in FIG. 2, the convex portion 4 on the printing substrate 1 has a relief shape due to a continuous vertical phase shift while maintaining an arbitrary width w1. However, the structure of the convex part 4 which exhibits the effect of the present invention does not necessarily have a relief shape, and may be composed of a semicircular cube (a cubic solid) arranged at a predetermined pitch.

  The configuration of the third embodiment will be described in detail with reference to the drawings. FIG. 10 is a perspective view in which the printing substrate 1 and the discriminator 2 in the present invention are partially cut out and enlarged. As shown in FIG. 10, the surface of the printing substrate 1 is provided with a horizontal line-shaped convex portion 4 having an arbitrary width w1 and height h. The protrusions 4 are continuously arranged in the vertical direction with a predetermined pitch P. However, as shown in FIG. 10, the phase shifts in the vertical direction while partially maintaining the predetermined pitch P. Have a relationship. This phase shift is about half of the predetermined pitch P, and the width w1 and height h of the convex portion 4 are not particularly limited. Further, the image lines 5 constituting the printed pattern 3 are continuously arranged in the vertical direction at the same predetermined pitch as the convex portions 4 and printed on the convex portions. A specific configuration of the image line 5 will be described in detail later.

  FIG. 11A shows a state in which the printed pattern 3 is viewed from the front in the observation direction T1 shown in FIG. 1A. The visible image 6 shown in FIG. Is visually recognized. On the printing substrate, the protrusions 4 are continuously arranged in the vertical direction with a predetermined pitch P. Since this convex part 4 is the same color as the printing base material 1, the first part formed and provided as a semicircular cube (a cubic solid) arranged at a predetermined pitch due to the phase shift of the convex part 4. For an invisible image, for example, the letter “A” of the alphabet, the observer cannot easily see it. Further, an image line 5 continuously printed on the convex portion 4 at the same predetermined pitch as the convex portion 4 is printed. Accordingly, in FIG. 11A, only the visible image 6 that is the same as the observation direction T1 shown in FIG. In addition, it is desirable that the printing substrate 1 and the convex portion 4 are white or a color with high brightness, and further, the printing color of the image line 5 does not limit hue, brightness, and saturation at all. It is desirable that the lightness is lower than the lightness of 1 and the convex part 4 and that the lightness difference is as far as possible (high contrast).

  FIG. 11B shows a state in which the printed pattern 3 is viewed obliquely in the observation direction T2 shown in FIG. 1A, and the first invisible image 8a is viewed as a visible image. It is a thing. Due to the height h of the convex portion 4, the image line 5 as viewed from the observer is separately observed as a portion printed on the front slope of the convex portion 4 and a portion printed on the slope behind the convex portion 4. That is, the first invisible image formed and provided by the phase shift of the convex portion 4, for example, the alphabet “A” becomes obvious and becomes a visible image state. Thus, the observer can make the first authenticity determination by viewing the printing substrate 1 from an oblique direction.

FIG. 12 is an explanatory diagram in which a basic image line configuration for visualizing the second invisible image 8b by the discriminator 2 is partially enlarged. The present invention is composed of two units, the image line unit A and the image line unit B shown in FIGS. 12 (a) and 12 (b). The image line unit A includes a dot-shaped image line portion 5a, while the image line unit B includes a dot-shaped image line portion 5b. The horizontal overall length of the image line unit A and the image line unit B is equal to the dimension S of the groove provided in the discriminator 2 shown in FIGS. Lines L1 and L2 are directions of grooves provided in the discriminator 2 shown in FIGS. 1 and 10, and the distance between the lines L1 and L2 is about half of the dimension S. Then, the image line unit A and the image line unit B shown in FIGS. 12A and 12B form a pair of on / off in the horizontal direction on the surface of the printed matter, and a desired rule. It is arranged with.

In order to make the image invisible in the observation direction T1 in FIG. 1, it is desirable to add the image line units C and D in addition to the image line units A and B shown in FIG. The image line units C and D are twice as large as the image line units A and B shown in FIG. In the image line unit C shown in FIG. 12C, a dot-like image line portion 5a and an image line portion 5c are arranged, and in the image line unit D shown in FIG. A part 5a, an image line part 5b, and an image line part 5d are arranged. In addition, the image portion 5c arranged in the image line unit C in FIG. 12C has an image area that is half or substantially half of the image line portion 5a arranged in the image line unit C. Further, the image line unit 5c is arranged at the approximate center between the other image line unit 5b arranged in the image line unit C and the image line unit 5a. That is, the center of the image line portion 5c is arranged at a position of about 75% of the dimension S on the left side when viewed from the center of the image line portion 5a. On the other hand, the image line portion 5d arranged in the image line unit D in FIG. 12D has an image area that is half or substantially half of the image line portion 5a or image line portion 5b also arranged in the image line unit D. is there. Further, the image line portion 5d is arranged at the approximate center between the image line portion 5a and the image line portion 5b arranged in the image line unit D. That is, the center of the image line portion 5d is disposed at a position about 75% of the dimension S on the right side as viewed from the center of the image line portion 5a.

  FIG. 13 shows that the image line unit A in FIG. 12A and the image line unit B in FIG. 12B are continuously and regularly arranged in a matrix without vertical and horizontal gaps in the printed pattern 3 on the printed matter. It is explanatory drawing which showed the positional relationship arrange | positioned. In order to maintain the continuity of the line groups provided in the line unit A and the line unit B, the line unit C shown in FIG. 12C and the line unit D shown in FIG. Are arranged on at least a part of the contour of the second invisible image 8b. The image line unit C is arranged at a location where the image line unit A is on the right side and the image line unit B is on the left side in the horizontal direction (longitudinal direction of the image line 5 shown in FIG. 1). A line unit C is arranged. That is, the place where the image line unit C is arranged is arranged on the left side which is the outline of the second invisible image 8b. On the other hand, the place where the drawing unit D is arranged is a place where the drawing unit A is on the left side and the drawing unit B is on the right side in the horizontal direction (longitudinal direction of the drawing line 5 shown in FIG. 1). The image line unit D is arranged in That is, the place where the image line unit D is arranged is arranged on the right side which is the outline of the second invisible image 8b. As a result, the second invisible image 8b, for example, the alphabet “B” can be further invisible.

  Further, the discriminating tool 2 shown in FIG. 1 and FIG. 10, for example, made of a lenticular lens is printed on the printing pattern 3 so that the line L1 or the line L2 matches the center line of each lens. FIG. 14 and FIG. 15 show the state of overlapping the printed pattern 3 on the material 1 and visually observing it from the front. When the center line 7 of the lenticular lens is at the position shown in FIG. 14A so as to coincide with the line L1 in FIG. 12, the image line portion 5a is located on the center line 7. Since the image line portion 5a located at the center line 7 appears to expand due to the characteristics of the lenticular lens, the second invisible image 8b is visually recognized as a visible image of a positive figure as shown in FIG. It becomes expressed. Further, when the center line 7 of the lenticular lens is located at the position shown in FIG. 15A so as to coincide with the line L2 in FIG. 4, the image line portion 5b is located at the center line 7. . Since the image line portion 5b located at the center line 7 appears to expand due to the characteristics of the lenticular lens, the second invisible image 8b is visually viewed as a negative image as shown in FIG. 15B. It becomes expressed. That is, the second invisible image 8b appears as a visible image that looks like a negative-positive image.

  In the first to third embodiments, the dimension S shown in the drawing is 40 μm, the pitch P is 500 μm, the width w1 is 150 μm, the width w2 is 200 μm, and the printed pattern 3 is printed on high-quality paper by offset printing. Yes. These numerical values are not limited.

  Further, the printing medium used for the printing substrate 1 is not limited in any way, such as high-quality paper, coated paper, and plastic film. Moreover, the convex part 4 formed in the printing base material 1 is formed by intaglio printing, screen printing, penetration, embossing, etc., and the means to form is not limited at all. Intaglio printing and screen printing are those in which the convex portions 4 are formed by a pile of ink transferred to a printing medium. The color of the ink is the same color as the print medium, the same color (ΔE is 3 or less), transparent or milky white. In the insertion and embossing, the convex portions 4 are formed by forming irregularities on the printing medium itself.

The convex part 4 is demonstrated in detail. As for the pitch P of the convex part 4, about 100 micrometers-about 1000 micrometers are preferable. Moreover, the desired width w1 of the convex part 4 is preferably about 60 μm to 600 μm. Protrusion 4 be formed higher than the base height of the printing substrate first surface as shown in FIG. 16, be formed lower than the height of the base of the printing substrate first surface as shown in FIG. 17 Good . About the height of the convex part 4, about 5 micrometers-100 micrometers are preferable. About the shape of the convex part 4, as shown to Fig.16 (a) and FIG.17 (a), it is triangular, as shown to FIG.16 (b) and FIG.17 (b), trapezoid shape, FIG.16 (c) and A rectangular shape as shown in FIG. 17 (c), a saddle shape as shown in FIGS. 16 (d) and 17 (d), a right triangle shape as shown in FIGS. 16 (e) and 17 (e), etc. Can be mentioned. The cross-sectional shape is not particularly limited. The convex portion 4 is divided into a first convex line having a first width and height and a second convex line having a second width and height on the printing substrate 1. The first convex line and the second convex line preferably have the same width and height. The first convex line and the second convex line are arranged in the same direction at the same pitch, and further, the phase of the pitch of the first convex line and the second convex line The first invisible image 8a is formed with a shift in the phase of the pitch.

As shown in FIGS. 18A to 18C, the phase difference between the pitch of the first convex line 8a1 and the phase of the pitch of the second convex line 8a2 needs to be less than one pitch. This phase shift is preferably about half of the predetermined pitch P. It is also possible to form the connecting line 8a3 for connecting the first convex lines 8a1 and the second convex line 8a2 as shown in FIG. 18 (d) and (e). As a result, a relief-shaped convex line is formed as shown in FIG. The angle of the connecting line 8a3 is not particularly limited, but is preferably 30 to 90 °. The desired width of the first convex line 8a1 or the desired width of the second convex line 8a2 may be the same or different. However, it is preferable that the desired width of the first convex line 8a1 or the desired width of the second convex line 8a2 is the same. When the desired width of the first convex line 8a1 or the desired width of the second convex line 8a2 is different, it is necessary to form a difference in line width within a predetermined pitch range. The first invisible image has a first background image portion and a first latent image portion, and the first background image portion is a first convex line or a second convex line. One of the lines is formed, and the first latent image portion is formed by the other line. The first invisible image 8a is exposed on at least part of the first convex line and / or on at least part of the second convex line, and the second invisible image 8b is displayed. A plurality of lines for forming are arranged.

  The image line unit 5a and the image line unit 5b will be described in detail. Note that the image line portion 5a is a first image line 5a, and the image line portion 5b is a second image line 5b. As shown in FIG. 19, a plurality of first image lines 5a and second image lines 5b are formed in the first direction and the second direction. The first image line 5a and the second image line 5b arranged in the first direction have the same pitch in the same direction as the first convex line 8a1 and the second convex line 8a2. It is arranged. The first image line 5a and the second image line 5b arranged in the second direction at a predetermined pitch are misaligned to form the second invisible image 8b. The second invisible image 8b has a second background image portion and a second latent image portion, and the second background image portion is either the first image line or the second image line. It is formed by the image line. The phase shift between the pitch of the first image line 5a and the phase of the pitch of the second image line 5b needs to have a shift of less than one pitch. This phase shift is about half of the predetermined pitch P. Preferably there is. The pitch P between the first image line 5a and the second image line 5b is preferably about 100 μm to 1000 μm. In addition, the image line width of the first image line 5a and the second image line 5b is preferably about 60 μm to 600 μm.

  The image shapes of the first image line 5a and the second image line 5b are the circular shapes shown in FIGS. 21A and 21B, the polygonal shapes shown in FIGS. 21C to 21E, and FIG. The special shape shown in f) is not particularly limited. However, the visibility of the second invisible image may be reduced depending on the shape of the image line. Therefore, the image shape of the first image line 5a and the second image line 5b is preferably a circular shape, an elliptical shape, or a rectangular shape.

  The connection drawing line 5e will be described in detail. The first image line 5a and the second image line 5b arranged in the second direction are connected by a connection image line 5e that connects the centers or approximate centers of the image lines adjacent in the second direction. The visibility of the first invisible image is improved by the connection drawing line 5e. The image line width of the connection image line 5e needs to be narrower than the image line widths of the first image line 5a and the second image line 5b. The line width of the connection line 5e is preferably about ½ of the line width of the first line 5a and the second line 5b.

  Means for transferring the print pattern 3, the first image line 5a, the second image line 5b, and the connection image line 5e to a print medium are an ink jet printer, a laser printer, offset printing, and the like. As long as it does not affect the range, there is no limitation.

  As shown in FIGS. 22A and 22B, the outline region of the second invisible image is half or substantially half of the first image line so that the second invisible image is not visually recognized in advance. A third image line 5c having an area and a fourth image line 5d having an image area that is half or substantially half of the second image line can be formed.

  In addition, as shown to Fig.23 (a), the line direction of the convex part 4 (1st convex line 8a1, 2nd convex line 8a2), the 1st image line 5a, and the 2nd image line 5b and the second direction of the connection image line 5e are preferably the same, but the effect of the present invention can be obtained even if they have a deviation of about ± 3 ° as shown in FIG. 23 (b). .

DESCRIPTION OF SYMBOLS 1 Print base material 2 Discriminator 3 Print pattern 4 Convex part, 1st convex line, 2nd convex line 5 Image line 5a Image line part, 1st image line 5b Image line part, 2nd Image line 5c Image line part, third image line 5d Image line part, fourth image line 5e Connection image line 6 Visible image 7 Center line 8a Invisible image, first invisible image 8a1 First convex line 8a2 Second convex line 8a3 Connecting line 8b Invisible image, second invisible image 11 Print substrate 12 Print pattern 13 Line group 14 Line group A Line unit B Line unit C Line unit D Line unit h Height L1 Line L2 Line P Pitch S Size T1 Observation direction T2 Observation direction w1 Width of convex portion w2 Width of image line 5

Claims (10)

In the anti-counterfeit printed matter including the first invisible image and the second invisible image,
A first convex line having a first width and height on the printing substrate and a second convex line having a second width and height on the printing substrate are the same at the same pitch. Arranged in a direction,
The phase of the pitch of the first convex line and the phase of the pitch of the second convex line have a deviation to form the first invisible image,
The first invisible image has a first background image portion and a first latent image portion,
The first background image portion is formed by one of the first convex line or the second convex line, and the first latent image portion is formed by the other line. Formed,
On at least part of and on the second convex line of the first convex lines, a plurality of image lines are arranged,
The plurality of image lines are formed by arranging a plurality in the first direction and the second direction,
The plurality of image lines arranged in the first direction are arranged at the same pitch in the same direction as the first convex line and the second convex line,
The image line arranged in the second direction is divided into a first image line and a second image line arranged at a predetermined pitch, and the phase of the pitch of the first image line and the second image line are divided. The second invisible image is formed with a shift in the phase of the image line pitch,
The second invisible image has a second background image portion and a second latent image portion,
The second background image portion is formed by one of the first image line or the second image line, and the second latent image portion is formed by the other image line. Anti-counterfeit printed matter characterized by that.   The image line arranged in the second direction has a connection image line connecting the centers or approximately the centers of the image lines, and the image line width of the connection image line is the image line width of the image line. The forgery-preventing printed matter according to claim 1, wherein the forgery-preventing printed matter is narrower than the printed matter. The first image line and the second image line are formed in a first image line unit and a second image line unit arranged in a matrix without vertical and horizontal gaps,
The first image line unit and the second image line unit have the same size,
The first image line is formed in the first image line unit;
The second image line is formed in the second image line unit;
The positional relationship between the first image line arranged in the first image line unit and the second image line arranged in the second image line unit is arranged at a different position. The anti-counterfeit printed matter according to claim 1, which has a phase shift. The connection image line, the first image line, and the second image line are formed in a first image line unit and a second image line unit that are arranged in a matrix without vertical and horizontal gaps,
The first image line unit and the second image line unit have the same size,
The connection image line and the first image line are formed in the first image line unit,
The connection image line and the second image line are formed in the second image line unit,
The positions of the connection image lines arranged in the first image line unit and the second image line unit are linearly formed from the position of 1/2 of the vertical direction of the unit in the horizontal direction of the unit. ,
The positional relationship between the first image line arranged in the first image line unit and the second image line arranged in the second image line unit is arranged at a different position. The anti-counterfeit printed matter according to claim 2, which has a phase shift.   The contour region of the second invisible image includes a third image line having an image area that is half or substantially half of the first image line so that the second invisible image is not visually recognized in advance. 5. The forgery-preventing printed matter according to claim 1, wherein a fourth image line having an image area that is half or substantially half of the image line of 2 is formed. The first image line, the second image line, the third image line, and the fourth image line are arranged in a matrix in a first image line unit that is arranged without vertical and horizontal gaps. Formed in the line unit, the third line unit and the fourth line unit,
The first image line unit and the second image line unit have the same size,
The third image line unit and the fourth image line unit are composed of an image line unit that is twice as large in the lateral direction as the first image line unit and the second image line unit.
The first image line is formed in the first image line unit;
The second image line is formed in the second image line unit;
The first image line and the third image line are formed in the third image line unit,
6. The forgery-preventing printed matter according to claim 5 , wherein the first image line, the second image line, and the fourth image line are formed in the fourth image line unit. The image line arranged in the second direction has a connection image line connecting the centers or approximately the centers of the image lines, and the image line width of the connection image line is the image line width of the image line. Narrower than
The connection image line, the first image line, the second image line, the third image line, and the fourth image line are in a first image line unit that is arranged in a matrix without vertical and horizontal gaps. , Formed in the second drawing unit, in the third drawing unit, and in the fourth drawing unit,
The first image line unit and the second image line unit have the same size,
The third image line unit and the fourth image line unit are composed of an image line unit that is twice as large in the lateral direction as the first image line unit and the second image line unit.
The connection image line and the first image line are formed in the first image line unit,
The connection image line and the second image line are formed in the second image line unit,
The connection image line, the first image line, and the third image line are formed in the third image line unit,
6. The forgery according to claim 5 , wherein the connection image line, the first image line, the second image line, and the fourth image line are formed in the fourth image line unit. Prevent printed matter. The positions of the connection image lines arranged in the first image line unit, in the second image line unit, in the third image line unit, and in the 4 image line units are set in the vertical direction of the unit. It is formed in a straight line from the position of half of the direction to the lateral direction of the unit
The position of the first drawing line arranged in the first drawing line unit is arranged on the left side with respect to the center of the first drawing line unit,
The position of the second drawing line arranged in the second drawing line unit is arranged on the right side with respect to the center of the second drawing line unit,
The positions of the first image line and the third image line arranged in the third image line unit are such that the third image line is on the left side with respect to the center of the third image line unit. Arranged, the first drawing line is arranged on the right side,
The positions of the first image line, the second image line, and the fourth image line arranged in the fourth image line unit are on the left side with respect to the center of the fourth image line unit. 8. The forgery prevention according to claim 7, wherein the first image line is arranged, the second image line is arranged on the right side, and the fourth image line is arranged at the center or substantially the center. Printed matter.   9. The first invisible image has a relief shape in which the first convex line and the second convex line are formed by continuous lines. 9. The forgery-proof printed matter described.   The first convex line and the second convex line are formed by transparent ink, ink of the same color as the printing base material, embossing or penetration. An anti-counterfeit printed matter according to claim 1.

Images