JPH0855207A - Card - Google Patents

Abstract

PURPOSE:To provide the card having a storage means for fixed data specifying the card so as to prevent the card from being forged. CONSTITUTION:A conductive ink print part 2 is provided on a core sheet 1, a core sheet 4 of the same material with the core sheet 1 is laminated thereupon, and oversheets 5 and 6 formed of transparent color hard vinyl chloride sheets are laminated so that they are sandwiched. The laminate is sandwiched between two metallic sheets which are finished into stainless mirror surfaces and bonded by thermocompression. Consequently, the card has the surface in a mirror surface state having no unevenness and the arrangement pattern constituted by the conductive ink printing is not viewed on the card surface. When this card is placed on or under a detection part consisting of a conductor metallic plate, a difference in electrostatic capacity is generated between the conductor metallic plate and the presence/absence part of the conductive ink on the card and the arrangement pattern constituted by the ink printing can be discrimintted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a card used for identification, various financial relationships and the like.

[0002]

2. Description of the Related Art A typical card such as an ID card and a bank card that has been widely used has a magnetic stripe on the surface of the card, and data is magnetically recorded on the magnetic stripe.

[0003]

As a means for confirming the authenticity of a card, the conventional card with a magnetic stripe had to rely only on collation of magnetically recorded data. Because of magnetic recording, forgery is possible with a simple means, and there is a drawback of being illegally used.

The present invention solves this problem and provides a fixed data storage means for specifying a card in addition to magnetic recording data.

[0005]

In order to solve the above-mentioned problems, the present invention prints a conductive ink at a plurality of specific positions on a sheet constituting a base material of a card, and by combining the presence or absence of the printing. Identifying the layout pattern of the card by detecting the change of the electrostatic capacity of the card by means of stacking and bonding the opaque sheets and making the layout pattern invisible on the card surface The means for doing so is provided.

[0006]

When a conductive ink is used for printing at a specific position on a sheet forming a base material of a card, a plurality of non-printing portions are combined to form individual arrangement patterns. The part printed with conductive ink is "1",
If the non-printed portion is set to "0", that is, it can be expressed as binary data. By giving this unique data to each card and registering it, the card can be specified. Further, by laminating and adhering an opaque sheet on a sheet having an individual arrangement pattern, it becomes difficult to identify the unique data from the card surface.

To identify the unique data, a conductive metal plate for detecting a change in capacitance is provided in the reading device, and the change in the capacitance with respect to a specific position on the card surface is detected to detect the presence or absence of conductive ink printing. Identify and obtain unique data.

Therefore, it can be used as a fixed data storage means without rewriting, and even if the individual card itself is specified and the magnetic recording data is forged, the validity can be confirmed.

[0009]

An embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a diagram for explaining the individual arrangement pattern. On the core sheet 1 made of a milky white hard vinyl chloride sheet, the conductive ink printing section 2 is provided at a position specified in advance.
An individual arrangement pattern is configured by a combination of the non-printing portion 3 and the non-printing portion 3. Conductive ink print part 2 is "1", no print part 3
Is expressed as a binary number with "0", the data "1010" is formed in FIG. 1 of the present embodiment.

FIG. 2 shows a sectional view of the card of this embodiment. The conductive ink printing portion 2 is provided on the core sheet 1,
A core sheet 4 of the same quality as the core sheet 1 is laminated thereon,
Further, an oversheet 5 and an oversheet 6 made of a transparent hard vinyl chloride sheet were laminated so as to sandwich these. These laminates were sandwiched between two mirror-finished metal plates made of stainless steel or the like and heat-pressed. As a result, a card was obtained in which the surface had no irregularities and the arrangement pattern formed by conductive ink printing was invisible from the card surface.

By placing this card above or below the detecting portion formed of a conductive metal plate, a difference occurs in the electrostatic capacitance between the conductive metal plate and the conductive ink presence / absence portion of the card. I was able to identify the pattern.

In this embodiment, the ink containing silver as the main component was used as the conductive ink, but the same result was obtained with the ink containing carbon as the main component. Further, in this embodiment, the conductive ink printing is provided between the core sheets, but it may be provided between the core sheet and the oversheet.
In this case, pattern printing or the like is required to hide the arrangement pattern.

There is also a method of attaching a thin conductive metal plate such as an aluminum foil in addition to the arrangement pattern configuration by the conductive ink printing, but there is an advantage that the printing configuration is cheaper in terms of manufacturing cost.

[0015]

As described above, the present invention is the same as a conventional card in terms of the appearance of a car, but it cannot be rewritten by the arrangement pattern formed by the presence or absence of conductive ink printing inside the base material of the card. It is possible to obtain a storage means for the stored data, and by utilizing this, individual cards can be specified, and an effect of making illegal use by forgery difficult is achieved.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a pattern arrangement according to an embodiment of the present invention.

FIG. 2 is a sectional view of an embodiment of the present invention.

[Explanation of symbols]

 1 core sheet 2 conductive ink printed part 3 non-printed part 4 core sheet 5 oversheet 6 oversheet

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[Procedure amendment]

[Submission date] October 20, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction content]

[0006]

By combining a plurality of portions not printed with the specific printed part I using the conductive ink in a position on the sheet that constitutes the [action] card substrate, thereby constituting a separate arrangement pattern. The part printed with conductive ink is "1",
If the non-printed portion is set to "0", that is, it can be expressed as binary data. By giving this unique data to each card and registering it, the card can be specified. Further, by laminating and adhering an opaque sheet on a sheet having an individual arrangement pattern, it becomes difficult to identify the unique data from the card surface.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] 0015

[Correction method] Change

[Correction content]

[0015]

As described in the foregoing, the present invention is not different from the card <br/> appearance conventional card, the arrangement pattern composed of the presence or absence of a conductive ink printed inside the substrate of the card, It is possible to obtain a fixed data storage means that cannot be rewritten, and by utilizing this, individual cards can be specified, and the effect of making illegal use by forgery difficult is achieved.

Claims (1)

[Claims] 1. A means for printing a conductive ink at a plurality of specific positions on a sheet constituting a base material of a card, and forming individual arrangement patterns by a combination of presence or absence of the printing.
An opaque sheet is laminated and adhered, and means for making the arrangement pattern invisible from the surface of the card and means for identifying the arrangement pattern of the card by detecting a change in the capacitance of the card by a reading device are provided. card.