JP7354547B2 - information display - Google Patents

Description

TECHNICAL FIELD The present invention relates to an information display body with enhanced anti-counterfeiting performance of an authentication medium having a facial photograph such as an ID card or a passport.

Techniques for increasing the anti-counterfeiting properties of authentication media containing facial photographs, such as ID cards and passports, include the use of holograms and optically variable inks in these media.

However, since holograms, optically variable inks, etc. are expensive, there is a problem in that they are expensive for applications in which they are used in large quantities.

As a technique for solving such problems, there is a technique disclosed in Patent Document 1, for example. This technology consists of a plurality of first drawing lines of n (integer) colors different from the color of the substrate, and a predetermined thickness provided in the area where the first drawing lines are drawn on the base material. The image forming apparatus includes a transparent or translucent layer, and a plurality of second and third object lines formed on the layer in correspondence with the first object line. By making the line widths of the second and third drawing lines different, the image forming body has an image formed by the second drawing line and a background formed by the third drawing line.

When this image forming body is observed from directly above, one or both of the second and third drawing lines are formed so as to overlap with the first drawing line.

This image forming body includes a first object line, a transparent or translucent layer in the region where the first object line is formed, and a second object line and a third object line formed thereon. It is coated with a material such as ink that has a density sufficient to shield the area.

Due to this, a part of the first object line can be observed when viewed from directly above, and when the viewing angle is changed, the first object line that is occluded changes. As a result, if the first drawing line is a color scheme, a color change appears. Further, when the drawing line is a figure formed by a broken line, a dotted line, or halftone dots, the image changes, resulting in a counterfeit prevention medium having a so-called changing effect.

This technology makes it possible to provide anti-counterfeiting properties without using expensive holograms or optically variable inks.

However, in the ID card field, in order to further reduce costs, laminate cards are now being used as ID cards, which are made by sandwiching paper with ID information such as facial photos between pouch films and heat laminating them. ing. Such laminated card type ID cards have the advantage of being low cost and can be produced instantly without requesting manufacture from a vendor, but have the disadvantage of being easy to forge.

Japanese Patent Application Publication No. 4314387

In view of the above circumstances, it is an object of the present invention to provide a laminated card-type information display body with anti-counterfeiting properties.

As a means for solving the above problem, the invention according to claim 1 of the present invention provides an information display body in which a sheet base material having an image for forming a moire pattern is sandwiched between two pouch films and then thermally laminated. There it is,
At least the surface of the pouch film on which the sheet base material is laminated, which corresponds to the image for forming a moire pattern, is provided with a line pattern forming section that can display moire on the image for forming a moire pattern. It is an information display body.

Further, in the invention according to claim 1 , the line pattern forming section is a transfer foil or a patch film having a line pattern forming section that can enlarge and display the printed matter or the moiré pattern forming image on the pouch film. It is an information display body characterized by:

The present invention also provides an information display body in which a sheet base material having an image for forming a moiré pattern is sandwiched between two pouch films and thermally laminated,
A moire pattern forming image that is the same as or different from the moire pattern forming image is provided on the surface of the pouch film on which the sheet base material is laminated, at least corresponding to the area where the moire pattern forming image is formed, The information display body is characterized in that a part or the entire surface of the pouch film is provided with a transfer foil or a patch film having a parallel line pattern capable of displaying the moire pattern forming image in an enlarged manner.

Further, the invention according to claim 2 is the information display body according to claim 1 , wherein the parallel line pattern forming portion is formed by etching a metal vapor deposited layer.

Further, the invention according to claim 3 is the information according to claim 1 or 2 , characterized in that at least one type of the moire pattern forming image is formed from printed dots thermally transferred from a pigment ink ribbon. It is a display body.

The information display body of the present invention is provided with a line pattern forming section that causes moiré on the surface of the laminated pouch film on the side where the ID information printing section is provided. Therefore, although it is possible to alter the facial image by peeling off the laminated pouch film and taking out the sheet base material on which ID information is printed, it is possible to alter the facial image by simply sandwiching it between two new pouch films and heat laminating it. Even if an information display body is manufactured using the above method, the pouch film does not have a parallel line pattern forming section that causes moiré, so it is difficult to enlarge the moiré pattern forming image or to create optical effects such as changing and rainbow moiré. unable to perform. This makes it possible to determine authenticity.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory diagram showing an example of an information display body of the present invention, in which (a) is a top view and (b) is a cross-sectional view. FIG. 1 is a sectional view showing an example of an information display body of the present invention. FIG. 2 is an explanatory diagram showing an example of an image for forming a moiré pattern, in which (a) is a character string with a height H that becomes an image to be displayed, and (b) is an image obtained by reducing the height of the character string in (a) to h. , (c) shows an example of an image for forming a moire pattern in which the images in (b) are arranged in a matrix.

Embodiments of the information display body of the present invention will be described using FIGS. 1 to 3.

<First embodiment>
A first embodiment of the information display body of the present invention will be described using FIG. 1.
FIG. 1(a) shows an example of a top view of the information display body 10 of the present invention. FIG. 1(b) shows a schematic cross-sectional view of the information display body 10 in FIG. 1(a) taken along the cutting line AA'.

The information display body 10 of the present invention includes a sheet base material 5 having an ID information printing section 3 including one or more of characters, figures, and facial images, and an image 1 for forming a moiré pattern, and two pouch films. It is an information display body that is sandwiched between 4 and heat laminated.

In the information display body 10 of the present invention, the ID information printing section 3 is provided so that at least a portion thereof overlaps with the moiré pattern forming image 1. By overlapping in this way, in the completed information display body 10, in addition to displaying a moiré pattern in which the image printed on the sheet base material 5 is enlarged on a part of the ID information printing section 3, changing and It becomes possible to exhibit optical functions such as rainbow moiré.

Furthermore, the moire pattern forming image 1 is displayed in an enlarged manner on at least the surface corresponding to the moire pattern forming image 1 of the pouch film 4 laminated on the side of the sheet base material 5 on which the ID information printing portion 3 is formed. It is characterized in that it is equipped with a parallel line pattern forming section 2 that can display moiré such as .
The method for producing the parallel line pattern forming section 2 is not particularly limited. As long as parallel lines are formed, any forming means may be used.

By having the configuration as described above, the information display body 10 of the present invention can display different images depending on the angle at which the information display body 10 is viewed, using the moiré pattern forming image 1 and the line pattern forming section 2. changes are possible. Further, a moire pattern, which is an enlarged image printed on the sheet base material 5, is displayed. For example, it is also possible to display a portion of the enlarged moiré pattern near the facial photograph.

Therefore, even if the sheet base material 5 on which text information, figures, and facial photographs are printed can be taken out, if the pouch film 4 is not equipped with the line pattern forming section 2, the enlarged Since moiré patterns are not displayed, authenticity can be easily determined.

(Sheet base material)
Although the sheet base material 5 is not particularly limited, known materials used for booklets such as passports, cards such as ID cards, etc. can be used. Examples include paper, vinyl resins such as polyvinyl chloride resin, polycarbonate resins, polyolefin resins such as polypropylene, polyester resins such as polyethylene terephthalate, biodegradable resins such as polylactic acid, and acrylonitrile-butadiene-styrene. Examples include plastic materials such as copolymer resins and (meth)acrylic resins, but there is no need to limit them to these.

(pouch film)
The pouch film 4 is not particularly limited as long as it is a resin film that can be used for lamination, and any commercially available lamination film for lamination can be suitably used. For example, when thermal lamination is performed, a film in which a polyethylene resin layer having a melting point lower than that of PET is formed on one side of a PET (polyethylene terephthalate) film can be used. Further, pouch films having a layer structure such as PET/ethylene vinyl acetate copolymer (EVA) and PET/low density polyethylene (LDPE)/EVA can be exemplified.

(Image for moiré pattern formation)
The moire pattern forming image 1 is not particularly limited, but may be, for example, an image as illustrated in FIG. 3 . First, an image to be displayed as an enlarged moiré image as shown in FIG. 3(a) is created. Here, horizontally arranged character images with a height of H are used. Next, as shown in FIG. 3(b), a character image is created in which the height of the horizontally arranged characters is reduced to h (h/H<1). Next, an image was created in which the character image created in FIG. 3(b) was repeated in the vertical and horizontal directions. In this way, an image obtained by reducing the original image in the vertical or horizontal direction and repeatedly arranging it in the vertical and horizontal directions can be used as an image for forming a moiré pattern.

As shown in Figure 3(c), an image in which a reduced character image is repeated vertically and horizontally cannot be recognized as a character with the naked eye, but by superimposing it on a parallel line pattern, an enlarged moiré pattern can be created. Since it is possible to display it as , it is possible to confirm it with the naked eye.

The moire pattern forming image 1 may have at least one type of element constituting the image formed from printed dots thermally transferred from a pigment ink ribbon.

(Line pattern forming section)
The parallel line pattern forming section 2 refers to a portion where a parallel line pattern, which is a collection of regularly arranged parallel lines, is formed on the pouch film 4. In the present embodiment, the line pattern forming section 2 may have a structure in which a line pattern is printed on the pouch film 4 using various printing techniques, or may be of other types. .
The lines of the line pattern forming section 2 may be formed, for example, by etching a metal vapor deposited layer such as aluminum.

(ID information printing department)
The ID information printing portion 3 refers to a portion of the sheet base material 5 on which ID information is printed. The printing method is not particularly limited. For example, ID information such as text, figures, and facial photographs can be printed on sheets using printing technologies such as inkjet printing, multifunction printers based on Xerography and electrophotographic technology, screen printing, and various types of offset printing. It can be printed on the substrate 5.

<Second embodiment>
Next, a second embodiment of the information display body of the present invention will be described using FIG. 2(a).
In the second embodiment of the information display body of the present invention, the line pattern forming section 2 of the first embodiment is not formed by printing, but is formed using a transfer foil or a patch film 7 having a line pattern. This is the configuration in which it is attached to.

With such a configuration, production efficiency can be improved compared to the case where the line pattern forming section 2 forms the line pattern on the pouch film 4 by printing. That is, a non-defective transfer foil or patch film 7 having a parallel line pattern prepared separately is attached to a non-defective information display body produced by sandwiching a sheet base material 5 between two pouch films 4 and thermally laminating them. This is because the information display body 10' is manufactured by doing so.

<Third embodiment>
Next, a third embodiment of the information display body of the present invention will be described using FIG. 2(c).
In the third embodiment of the information display body of the present invention, in the second embodiment, a transfer foil or In addition to being provided with the patch film 7, on the surface of the pouch film 4 corresponding to at least the portion where the ID information printing portion 3 is formed, a moire pattern forming image that is the same as or different from the moire pattern forming image 1 is provided. This configuration includes an image 6.

The information display body 10'' of this embodiment has two locations: an image 1 for forming a moire pattern on the sheet base material 5 and an image 6 for forming a moire pattern on the pouch film 4 on the printing side of the sheet base material 5. An image for forming a moiré pattern is provided.

Since the moire pattern forming images 1 and 6 are provided with a transfer foil or patch film 7 having a line pattern, two enlarged moire patterns are displayed.

In addition to displaying an enlarged moire pattern using the moire pattern forming image 1 and the transfer foil or patch film 7 having a parallel line pattern, a moving expression can be made by tilting and observing the moire pattern in the same manner as changing.

On the other hand, an enlarged moire pattern is displayed by the moire pattern forming image 6 and the transfer foil or patch film 7 having a line pattern. Since the distance between the parallel line pattern and the moiré pattern forming image 6 is too short, movement is unlikely to occur. If the parallel line pattern is formed on the transfer foil, the distance is very small and no movement occurs. In addition, when the parallel line pattern is formed on the patch film 7, the distance can be made larger than in the case of transfer foil, but it is always smaller than the distance from the moiré pattern forming image 1, so moving The amount is smaller than that of the moire pattern forming image 1. That is, in this case, two types of enlarged moiré patterns with different amounts of moving can be displayed.

Next, the information display body of the present invention will be explained in more detail using examples.

<Example 1>
1. Production of transfer foil with line pattern A transfer foil with line pattern was fabricated using the same method as the demetallized hologram transfer foil using an aluminum thin film as a reflective layer.

First, a 19 μm thick PET (polyethylene terephthalate) film was used as a transfer foil base material, and a release layer was formed on the surface thereof. An aluminum thin film layer (50 nm) was formed on the release layer using a sputtering device. As a release layer, a thermoplastic polyacrylate resin layer was formed with a thickness of 1 μm.

Next, using a gravure printing machine, an etching mask with a pattern opposite to the line pattern to be produced is formed, and the exposed aluminum thin film layer is etched away by immersing it in an alkaline solution. A line pattern (line width 230 μm, space 100 μm) was formed.

Next, an adhesive layer (thickness: 10 μm) was formed on the entire surface including the etching mask. Note that the adhesive layer is a heat-sensitive adhesive containing vinyl chloride acetate resin as a main component. A transfer foil having a parallel line pattern was obtained by laminating a protective film with peelability on the adhesive layer as needed.

2. Printing of an image for forming a moire pattern onto a sheet base material A high-quality paper was used as a sheet base material, and ID information (such as a face photograph) and an image for forming a moire pattern were printed using a color toner printer. As the moiré pattern forming image, an image in which the name of the ID information was written in uppercase alphabets was used.

The characters (ABC) shown in FIG. 3(a) were used for the moire pattern forming image. The height of these characters was 2.6 mm).

Next, an image was formed in which the height of the characters was compressed to 0.38 mm (FIG. 3(b)). Next, we created an image in which four rows were arranged in a direction perpendicular to the direction in which these letters (ABC) were arranged, and then we created an image in which one more row was formed in the direction in which the letters (ABC) were arranged (Figure 3 (c)). An image for moiré pattern formation was obtained in the manner described above.
Next, a face photograph serving as ID information was printed across an area where the moiré pattern forming image was not formed and a part of the area where the moire pattern forming image was formed. By doing this, the moiré pattern forming image and the facial photograph are formed so as to partially overlap.
In this way, a high-quality paper (sheet base material) on which an image for forming a moiré pattern and a facial photograph as ID information were printed was obtained.

3. Printing an image for forming a moire pattern on a pouch film The image for forming a moire pattern for a figure (logo mark) created by the same method as the image for forming a moire pattern printed on a sheet base material is printed in the same space as the line pattern. Printing was performed on the surface of a 100 μm thick pouch film by screen printing. Pouch film is
"Pouch Film MSP-F220307N" manufactured by KOKUYO was used.

4. Lamination of sheet base material with pouch film Next, the sheet base material on which the moiré pattern forming image and facial photograph obtained above were printed is sandwiched between two pouch films, and then placed between two heated rollers of a thermal laminator. It was laminated by passing it through. In this way, an article made into a laminated card was obtained.

5. Transfer of line pattern Next, a transfer foil having a line pattern was transferred onto the surface of the pouch film corresponding to the moiré pattern forming image and facial photograph on the printed surface of the laminated card article obtained above.

An ID card (information display) was produced in the manner described above. This ID card displays ID information such as a face photo and date of birth printed on the sheet base material as is, as well as an enlarged name written in capital letters printed as an image for forming a moiré pattern. It was visually recognized as a moiré pattern. Furthermore, the logo mark printed on the pouch film was also visible as an enlarged moiré pattern.

1... Image for forming a moire pattern 2... Line pattern forming section 3... ID information printing section 4... Pouch sheet 5... Sheet base material 6... Image for forming a moire pattern 7. ...Transfer foil or patch film 10, 10', 10'' having a line pattern...information display body

Claims (3)

An information display body in which a sheet base material having an image for forming a moire pattern is sandwiched between two pouch films and thermally laminated,
At least the surface of the pouch film on which the sheet base material is laminated, which corresponds to the image for forming a moire pattern, is provided with a parallel line pattern forming part capable of displaying moire on the image for forming a moire pattern,
An information display body characterized in that the line pattern forming section is a transfer foil or a patch film having a line pattern that can enlarge and display the printed matter on the pouch film or the moiré pattern forming image. 2. The information display body according to claim 1, wherein the parallel line pattern forming portion is formed by etching a metal vapor deposited layer. 3. The information display body according to claim 1, wherein at least one type of the moiré pattern forming image is formed from printed dots thermally transferred from a pigment ink ribbon.