JP2000238478A - Card - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily discriminate the replacement and prevent the incorrect use by alteration or forgery by forming an infrared absorption ink layer on an upper layer or a lower layer of a face photograph image layer. SOLUTION: Three layers of yellow, magenta and cyan used for a transfer ribbon for a face photograph image 4 are originated from a pigment or a dye having no absorption wavelength in an infrared area, and the absorption of infrared rays is not generated at all on a transferred and printed face photograph image section. As an infrared absorption ink, a colorless and transparent ink is used so that it is impossible to scrape off through a face photograph image layer only when the face photograph image 4 is scraped off, and as whether the infrared absorption ink layer is formed or not cannot be discriminated by naked eyes, and what kind of characters and figures are drawn as a masked image is not discriminated. The alteration or forgery, therefore, can be discriminated by forming the infrared absorption ink layer 3 on an upper layer or a lower layer of the face photograph image layer 4, emitting infrared rays and confirming whether the infrared absorption is generated thereon or not.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a card having a face photograph image as identification such as an identification card, a credit card, an ID card, and the like. The present invention relates to a card provided with a means for preventing unauthorized use of the card.

[0002]

2. Description of the Related Art Conventionally, a card having such a face photograph image is loaded into a computer with image data taken by a CCD camera or the like on a card base material (1) as shown in FIG. The information related to the face photograph (4) and the face photograph such as the name are printed by a printer of a transfer system or the like. However, there is a possibility that the face photo image is shaved and the face photo image is replaced and illegally used.
With the recent development and spread of image processing software, computers and printers, there is a concern that counterfeiting and alteration such as replacing photographic images will frequently occur.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and when a face photograph image is cut and replaced, it is possible to easily determine that the replacement has been made, and the tampering or alteration is performed. An object of the present invention is to provide a card that can be prevented from being used.

[0004]

According to a first aspect of the present invention, there is provided a card having a face photograph image as an identification means, wherein an infrared absorbing ink layer is provided above or below the face photograph image layer. It is a featured card.

According to a second aspect of the present invention, there is provided the card according to the first aspect, wherein the image formed by the infrared absorbing ink layer is a character or a figure.

According to a third aspect of the present invention, there is provided the card according to the first aspect, wherein the image formed by the infrared absorbing ink layer is code information such as a bar code.

According to a fourth aspect of the present invention, an infrared-absorbing ink layer is provided by transferring an image to a card substrate by a printer using an infrared-absorbing ink transfer ribbon. It is a card described in.

As described above, the transfer ribbons of three colors, yellow (Y), magenta (M), and cyan (C), used for the face photograph image are pigments and dyes having no absorption wavelength in the infrared region. Therefore, infrared light is not absorbed in the transferred and printed face photograph image portion at all. Also, by using a colorless and transparent infrared absorbing ink, it is impossible to scrape off only the face photographic image layer when shaving the face photographic image, and the infrared absorbing ink layer of FIG. Since it cannot be distinguished from those that are not provided, it is not known what kind of characters and figures are drawn as hidden images.

Therefore, an infrared absorbing ink layer is provided as an upper layer or a lower layer on the face photographic image layer, and the presence or absence of infrared absorption is confirmed by irradiating infrared light to determine whether the image has been tampered or altered. It is possible to do. Also, not only the presence or absence of infrared absorption, but also characters, graphics, barcodes,
If the figure is different from the real one, it becomes clear that it is fake. As this confirmation method, it is possible to visually check with an infrared scope or to read and confirm mechanically with an infrared sensor.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 illustrates a card according to the present invention, wherein (a) is a plan view of the card,
(B) is a cross-sectional configuration diagram when an infrared-absorbing ink layer is formed below the face photographic image layer, and (c) is a cross-sectional configuration diagram when the infrared-absorbing ink layer is formed above the face photographic image layer. Show.

A pattern is printed in advance on a card base material (1) such as white vinyl chloride, white polycarbonate, white polyethylene terephthalate, paper or the like by offset printing, gravure printing, screen printing or the like with an infrared absorbing ink, and an infrared absorbing ink layer is formed. (3a) is formed. A face photograph taken by a digital camera or the like is taken into a computer on the card base material on which the infrared absorbing ink layer is formed, and the color is separated into yellow, magenta, and cyan, and the computer image is printed by a printer. Form (4). When an overlay film (5) is provided thereon to protect the image, a card as shown in FIG. 1 is obtained. The overlay film may be formed only on the face photograph portion or on the entire card.

Since the infrared absorbing ink is colorless and transparent, it is difficult to distinguish it from the conventional card having no infrared absorbing ink layer shown in FIG. 3 in appearance.

As an infrared absorbing material which is colorless and transparent in the visible region and absorbs in the infrared region, a phosphate crystal powder material containing phosphorus pentoxide as a main component, iron oxide or copper oxide or both, and phosphorus pentoxide as a main component Glass-based powder material containing Fe ²⁺ or Cu ²⁺ , infrared absorbing material of metal complex,
Cyanine, phthalocyanine, naphthalocyanine,
Infrared absorbing dyes such as anthraquinone type, clonic methine type, azulenium type and pyrylium type are exemplified.

These infrared absorbing materials are polyvinyl chloride, vinyl acetate-vinyl chloride copolymer, polyacryl,
Linseed oil, drill oil, toluene, acetone, using resins such as polystyrene, polystyrene, and polyamide as binders
It is dissolved and dispersed in an appropriate solvent such as alcohol, methyl ethyl ketone, ethylene glycol or the like, and is converted into an ink in consideration of viscosity, transferability, drying property and the like suitable for the printing method.

In FIG. 1B, an infrared absorbing ink layer (3a) is formed below the face photographic image layer (4).
As shown in (c), it may be formed on the upper layer of the face photographic image layer. In addition, the position where the infrared absorbing ink layer is provided may be provided over the whole, but may be provided only in a dark portion such as the hair portion of the head, and since the color is dark, countermeasures for preventing counterfeiting are visually observed. Make it hard to understand.

The pattern formed by the infrared-absorbing ink layer may be a character or a figure. However, as shown in FIG. 2, information relating to an individual face photograph is coded by a numerical code, a bar code, and a two-dimensional code. If the object is printed with infrared absorbing ink and the card is formed such that the code and the face photograph image correspond one-to-one, the forgery prevention effect is further enhanced.

That is, the code information (2) is printed in advance on a portion other than the face photograph image of the card itself, and the code information (3b) printed with infrared absorbing ink and the code information (3b) are printed on portions other than the face photograph. By checking whether the code information (2) matches the security information, security is improved. The code information (3) formed by these infrared ink layers
b) can be mechanically collated with the unique code information (2) of the reading card itself by a sensor.

Furthermore, in the case of a magnetic card, the code information (3b) formed in the face photograph image portion is read, and the code information is magnetically encoded, whereby the authenticity can be easily mechanically determined. .

To form the infrared absorbing ink layer,
Although a normal printing method was used, an infrared absorbing ink layer may be formed by directly printing on a card with a pretanner using an ink transfer ribbon. For example, when a transfer ribbon of a hot-melt transfer system is used, a normal Y,
A ribbon having an infrared-absorbing ink transfer area using an infrared-absorbing material is produced on a color ribbon having M and C transfer areas. This ribbon forms a release layer (12) in which silicon oil and silicone resin are added to nitrocellulose resin so that transfer and printing can be performed efficiently and beautifully on a polyethylene terephthalate film as a ribbon substrate (11). On this release layer, a transfer layer (13) is formed using a dye and a pigment having Y, M, C and infrared absorption as a binder of polyvinyl acetal, polyvinyl butyral and polyester resin. On this transfer layer, an adhesive layer (14) such as a polyvinyl chloride-based adhesive, an acrylic adhesive, a polyester adhesive, or the like is formed.

An acrylic resin is used to prevent sticking when transferring and printing by the print head on the back surface of the card substrate (the surface opposite to the surface on which the release layer is formed) and to prevent the transfer ribbon from sticking. Then, a back coat layer (15) is formed by adding a surfactant, polyethylene wax or silicone wax as a slip agent to a polyester resin or a cellulose resin to form a transfer ribbon.

The method of forming figures, characters, and patterns of the infrared absorbing ink layer with such a transfer ribbon can be easily drawn on a personal computer or the like. The information in the ink layer can be changed, making it more difficult to falsify or falsify.

[0022]

According to the present invention, in the visible region, any figure due to the use of infrared absorbing ink that can not be recognized with the naked eye, characters, on top illegible what pattern is printed, the face image In the case where the file is replaced with a new one, it is easy to determine that the replacement has been made, and it is possible to prevent unauthorized use due to tampering or alteration. In addition, by coding a figure formed by the infrared absorbing ink layer, falsification and falsification become more difficult, and mechanical authenticity can be determined.

[Brief description of the drawings]

1A and 1B show an example of a card according to the present invention, wherein FIG. 1A is a plan view of the card, FIG. 1B is a sectional view showing a configuration in which an infrared absorbing ink layer is formed below a face photograph image layer, and FIG. () Is a structural cross section when an infrared absorbing ink layer is formed below the face photographic image layer.

FIG. 2 is a plan view showing another example according to the present invention, in which an image of an infrared absorbing ink layer is coded.

FIG. 3 shows a conventional card, (a) is a plan view, (b)
Is a sectional view of the configuration.

FIG. 4 shows an example of a transfer ribbon, (a) is a plan view,
(B) is a configuration sectional view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Card base material 2 ... Code information 3a, 3b ... Infrared absorption ink layer 4 ... Face photograph image 5 ... Overlay film 10 ... Transfer ribbon 11 ... Card base material 12 ... Release layer 13 ... Transfer layer 14 ... Adhesive layer 15 … Back coat layer

 ──────────────────────────────────────────────────続 き Continued on front page F term (reference) 2C005 HA03 HB01 HB07 HB09 JA15 JB02 JB12 LA20 4J039 AB04 AD03 AD05 AD08 AD10 AE08 BA13 BA19 BA25 BA26 BA37 BA39 BC04 BC07 BC10 BC16 BC17 BC18 BC60 BE12 CA04 CA07 EA48 5B035 AA01 BA03 BA03 BB02 BB09 BB11 BC01 CA01 CA06

Claims (4)

[Claims] 1. A card having a face photograph image as a means for identifying a person, wherein an infrared absorbing ink layer is provided above or below the face photograph image layer. 2. The card according to claim 1, wherein the image formed by the infrared absorbing ink layer is a character or a figure. 3. The card according to claim 1, wherein the image formed by the infrared absorbing ink layer is code information such as a bar code. 4. The card according to claim 1, wherein an infrared absorbing ink layer is provided by transferring and printing an image on a card substrate by a printer using an infrared absorbing ink transfer ribbon.