JPH1120356A - Card with transparent part - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a forgery prevention effect without requiring a complicated processing technique. SOLUTION: A transparent core layer 11 and a concealing layer 12 formed by leaving a non-concealed portion on both surfaces of the core layer 11;
And a print layer 13 formed on the non-concealed portion of the concealing layer 12, wherein the position of the non-concealed portion is the transparent portion 10a, and the information recording layer 15 is printed on the transparent portion.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plastic card or the like having a partially transparent portion.

[0002]

2. Description of the Related Art A conventional plastic card has been used as a cash card, a credit card, an identification card, and the like, and as a forgery preventing means, a card in which a hologram transfer body is transferred to a card base is known.

[0003]

However, the above-mentioned conventional card has a problem that the manufacturing cost of the card increases because the hologram processing technique is complicated and the card itself is expensive.

[0004] It is an object of the present invention to provide a card having a transparent portion having an anti-counterfeiting effect without requiring a complicated processing technique.

[0005]

In order to solve the above-mentioned problems, the invention according to claim 1 is characterized in that a transparent core layer (11) and at least a part of the core layer are non-hiding on at least one or both surfaces thereof. And a printing layer (13) formed on the core layer on the side where the concealing layer or the concealing layer is not formed, wherein the position of the non-concealing part is A card having a transparent portion, which is a transparent portion (10a).

According to a second aspect of the present invention, there is provided a card having a transparent portion according to the first aspect, further comprising an information recording layer printed on the transparent portion. is there.

According to a third aspect of the present invention, there is provided the card having the transparent portion according to the first aspect, further comprising an information recording layer (25) attached to the transparent portion and having information formed on a transparent base material. A card having a transparent portion characterized by the following.

[0008] The invention of claim 4 is the first to third aspects of the present invention.
The card having a transparent part according to any one of the preceding claims, further comprising a filter layer (27) formed on the transparent part and transmitting or absorbing light of a specific wavelength. is there.

[0009]

Embodiments of the present invention will be described below in more detail with reference to the drawings. FIG.
FIG. 1A is a diagram showing a first embodiment of a card having a transparent portion according to the present invention, FIG. 1A is a plan view, and FIG. 1B is a cross-sectional view taken along the line BB of FIG. . FIG. 2 is an exploded perspective view showing a layer configuration of the card according to the first embodiment.

The card (plastic card) 10 of this embodiment includes a core layer 11, a concealing layer 12, and a printing layer 13
And a protective layer 14 and the like.

The core layer 11 (11A, 11B) serves as a carrier of the card 10, and is a colored or colorless and transparent plastic, for example, polyethylene terephthalate, vinyl chloride, polycarbonate, ABS resin, polypropylene, polystyrene, polystyrene. Methyl methacrylate,
Cellulose propionate, cellulose acetate butyrate, acrylonitrile-styrene copolymer and the like can be used.

The concealing layers 12 (12A, 12B) are provided on both sides of the core layer 11 to provide opacity to portions other than the transparent portion 10a of the core layer 11 and to provide printability. It is formed by performing silk printing in the order of silver ink and white ink except for a portion (transparent portion 10a) that is cut out at four corners.

The printing layer 13 (13A, 13B) is formed on the front and back surfaces of the concealing layer 12, and is a layer on which characters, figures, symbols, and the like are printed, and is printed by gravure printing, screen printing, sublimation transfer, or the like. Can be formed. In this embodiment, the print layer 13A on the front side has attribute information such as the ID number, name, and date of birth of the card owner printed thereon by a sublimation transfer printer, and the print layer 13B on the back side has, for example, the card 10 General items such as explanations are printed.

The protective layer 14 (14A, 14B) is a layer for protecting the print layer 13 and the information recording layer 15,
It is formed by attaching a polyvinyl chloride sheet or the like or applying an OP varnish or the like. The protective layer 14A
Has a magnetic stripe 18 formed in advance.

The information recording layer 15 is a layer formed on the transparent portion 10a and describing information for certification or transmission. Information recorded in the information recording layer 15 is, for example,
Examples include a face photograph printed by a sublimation transfer type printer or the like.

Next, a method for manufacturing the card 10 of the present embodiment will be described. First, the concealing layers 12A and 12B are formed on the roll-shaped transparent plastic sheet to be the core layers 11A and 11B by silk-screen printing in the order of silver ink and white ink as concealing inks. Then, on one side of the plastic sheet (core layer 11A or 11B),
A heat sealing agent is applied, two plastic sheets are laminated, and heat and pressure are applied to bond them.

In this state, by the sublimation transfer printer,
Attribute information and face photograph are printed, and the printing layer 13 and the information recording layer 1 are printed.
5 is formed. The printed layer 13 on the back side has the same contents, and thus is printed in advance. Thereafter, the sheet is cut into a sheet shape, and an oversheet serving as the protective layer 14 is attached to both sides of the sheet, and heat and pressure are applied to smooth the surface.

This card 10 has a transparent portion 10a even if it is copied on a white sheet when a color copy is made.
Can not be reproduced, so it can be determined that it is a copy. Also, when copying on a transparent sheet (such as an OHP sheet),
Since the white component cannot be reproduced, the white portion is not transparent and can be determined to be a copy. As described above, according to the present embodiment, a forgery prevention effect can be obtained by a simple method without using a complicated processing technique such as a hologram.

(Second Embodiment) FIG. 2 is a sectional view showing a second embodiment of a card having a transparent portion according to the present invention. Note that portions that perform the same functions as in the above-described first embodiment are denoted by the same reference numerals at the end, and redundant description will be omitted as appropriate. In the card 20 of the second embodiment, a concealing layer 22 is formed on the surface of a core layer 21, and a printing layer 23 is printed thereon. On the back surface of the core layer 21, a protective layer 24 is formed.

On the other hand, a protective layer 26
Is temporarily stopped. The protective layer 26 includes a transparent protective sheet 26a, an adhesive layer 26b formed on the lower surface of the protective sheet 26a, and a release paper 26c that protects the adhesive layer 26b and is peeled off during use.

In the second embodiment, the information recording layer 25 has a form in which a transparent sheet on which information is printed in advance is embedded, and as shown in FIG. After the attachment, the release paper 26a of the protective layer 26 is peeled off, and the protective sheet 26a is attached using the adhesive layer 26b.

According to the second embodiment, since the information recording layer 25 can be inserted later, there is an advantage that a card can be issued individually.

In the second embodiment, a filter layer 27 coated with an ultraviolet absorbing material is formed on the transparent portion 20a. For this reason, when using the card, the amount of light received is detected by irradiating ultraviolet rays.If the amount is less than a predetermined amount, the card is a regular card.If the amount is more than the predetermined amount and the ultraviolet light is not absorbed, it is a counterfeit product. It can be determined that there is.

Examples of the ultraviolet absorber include benzophenones (eg, 2-hydroxy-4-methoxybenzophenone, 2,2'-dihydroxy-4-methoxybenzophenone, 2-hydroxy-4-n-octoxybenzophenone),
Benzotriazoles (eg, 2- (5-methyl-2-hydroxyphenyl) -benzotriazole, 2- [2-hydroxy-3,5-bis (α, α-dimethylbenzyl) phenyl] -2H-benzotriazole, 2- (3,5-di-t-butyl-2
-Hydroxyphenyl) -5-chlorobenzotriazole, 2- (3-t-butyl-methyl-2-hydroxyphenyl) -5-chlorobenzotriazole, 2- (3,5-di-t-butyl-2-hydroxy Phenyl) -5-chlorobenzotriazole, 2- (3,5-di-t-amyl-2-hydroxyphenyl) benzotriazole, 2- (2'hydroxy-5'-t-octylphenyl) benzotriazole, 2- (2-hydroxy
-5-t-octyl) benzotriazole), titanium oxide,
Zinc oxide and the like can be mentioned.

(Modifications) Various modifications and changes are possible without being limited to the embodiment described above, and they are also within the equivalent scope of the present invention. For example, in the first embodiment, the core layer 11 has a thickness of 2 to prevent warpage.
The sheets are laminated, but may be one. Further, the concealing portion 12 may be provided only on one side of the core layer 11 when the printing layer 13 is provided only on one side or only for easy viewing.

In the second embodiment, for the information recording layer, for example, a sheet obtained by photographing medical or other personal information on a microfilm can be used. In this case, the personal information cannot be read in a normal state, and when necessary, the contents can be visually checked with a loupe or the like without using a large-sized special reading device that requires a power supply. it can. In the present invention, since the sheet of the information recording layer is attached to the transparent portion, a sufficient amount of light is obtained by light from the back surface,
Information can be easily read even with a loupe or the like.

By forming the information recording layer as a rewritable liquid crystal display member, light from the back surface can be used as a backlight. Further, a code such as a barcode or a carla code, a fingerprint, or the like may be printed.

In addition to the ultraviolet absorbing material, a material that absorbs or transmits infrared light or other light having a specific wavelength may be kneaded in the filter portion, or a film having such properties may be attached. Substances (pigments) having an absorption range in the infrared region include, for example, cyanine dyes, phthalocyanine dyes, naphthoquinone dyes, anthraquinone dyes, zirol dyes, and triphenylmethane dyes.

Note that an IC chip or a magneto-optical recording layer may be provided instead of the magnetic stripe.

[0030]

As described above, according to the first aspect, the concealment layer is formed on the transparent core layer while leaving the non-concealment part, and the position of the non-concealment part is the transparent part. Therefore, when a copy is made, a transparent portion is not reproduced, which has an effect of preventing forgery.

According to the second aspect, since the information recording layer is printed on the transparent portion, the information can be easily visually recognized using light from the back surface of the transparent portion.

According to the third aspect, since the information recording layer in which information is formed on a transparent base material is adhered to the transparent portion, the information recording layer can be formed after the card is manufactured.

According to the fourth aspect, the filter layer that transmits or absorbs light of a specific wavelength is formed on the transparent portion. By irradiating light of that wavelength and measuring light passing through the transparent portion, It is easy to determine whether the card is a counterfeit card.

[Brief description of the drawings]

FIG. 1 is a view showing a first embodiment of a card having a transparent portion according to the present invention.

FIG. 2 is an exploded perspective view showing a layer configuration of the card according to the first embodiment.

FIG. 3 is a sectional view showing a second embodiment of a card having a transparent portion according to the present invention.

[Explanation of symbols]

 10, 20 card 10a, 20a Transparent portion 11, 21 Core layer 13, 23 Concealment layer 14, 24, 26 Protective layer 15, 24 Information recording layer 27 Filter layer 18 Magnetic stripe

Claims (4)

[Claims] 1. A transparent core layer, a concealing layer formed on at least one part of both or one surface of the core layer, leaving a non-concealing part, and the concealing layer or the concealing layer is not formed. And a printing layer formed on the core layer on the side of the card, wherein the position of the non-concealing part is a transparent part. 2. The card having a transparent portion according to claim 1, further comprising an information recording layer printed on the transparent portion. 3. The card having a transparent part according to claim 1, further comprising an information recording layer attached to the transparent part and having information formed on a transparent base material. card. 4. The card having a transparent part according to claim 1, further comprising a filter layer formed on the transparent part and transmitting or absorbing light of a specific wavelength. A card having a transparent portion as a feature.