JP2009032054A - Skimming prevention card - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a skimming prevention card for preventing data from being stolen from a non-contact card, so called, skimming. <P>SOLUTION: A skimming prevention card is configured of a sheet made of iron system metal powder and a heat fusion layer made of, for example, polyethylene terephthalate (PET) or the like covering the whole face of the sheet. The sheet made of the iron system metal powder is configured by containing at least silicon in the iron system metal powder. As for the particle diameter of the iron system metal powder, the mean diameter ranging from 50 to 75 μm is adopted. As for the mixing rate of the iron system metal powder to the silicon, the iron system metal powder is ranging from 80 to 90%, and the silicon is ranging from 5 to 15%. Also, as for the particle diameter of the iron system metal powder, the mean diameter ranging from 50 to 75 μm is used. Also, the iron system metal powder and the silicon are formed like a sheet by a binder made of acrylic elastomer. The thickness of the integral sheet of the iron system metal powder is formed so as to be 300 μm or more. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a skimming prevention card for preventing so-called skimming, in which data is stolen from a contactless card. The present invention relates to a skimming prevention card capable of performing data communication between a skimming prevention card and a card reader and preventing skimming. The present invention includes contactless cards, ticket gates for transportation, cash cards for financial institutions, credit cards, entrance / exit management cards, gift certificates, inventory management, other non-contact products, services, cash provision, The present invention relates to a skimming prevention card used in a system capable of product recognition and charge collection / payment.

As a conventional example, the skimming prevention card in Japanese Patent Application Laid-Open No. 2006-288989 has an aluminum foil adhered and fixed entirely on the lining of a wallet with a card case.
JP 2006-288899 A

  The skimming prevention card described in the above-mentioned patent publication is a wallet in which an aluminum foil is attached to the wallet with an adhesive and is effective against skimming, but there is a problem that the card cannot be read. there were. The skimming prevention card has an aluminum foil even when no card is in the wallet, and the wallet is uncomfortable and cannot be applied to a high-class wallet.

  In order to solve the above problems, the present invention provides a skimming prevention card using a non-contact type card and a magnetic material sheet, capable of data communication by a desired card reader, and capable of preventing undesired skimming. The purpose is to do. An object of the present invention is to provide a skimming prevention card that can communicate with a card reader and can prevent skimming even when a metal plate is provided on the back of the card.

(First invention)
The skimming prevention card of the first invention is composed of a ferrous metal powder kneaded sheet and a heat fusion layer made of a synthetic resin member covering the entire surface of the metal powder kneaded sheet.

(Second invention)
The skimming prevention card of the second invention is characterized in that the iron-based metal powder of the first invention contains iron and at least silicon.

(Third invention)
The skimming prevention card of the third invention is characterized in that the iron-based metal powder of the first invention or the second invention is 80% to 90% and silicon is 5% to 15%.

(Fourth invention)
In the skimming prevention card of the fourth invention, the iron-based metal powders of the first to third inventions have an average diameter of 50 μm to 75 μm.

(Fifth invention)
In the skimming prevention card of the fifth invention, the iron-based metal powder of the first to fourth inventions is formed as a sheet by a binder mainly composed of an acrylic elastomer.

(Sixth invention)
In the skimming prevention card of the sixth invention, the thickness of the iron-based metal powder kneaded sheet of the first to fifth inventions is 300 μm or more.

(Seventh invention)
In the skimming prevention card of the seventh invention, the heat-sealing layer of the first to sixth inventions is polyester terephthalate.

  According to the present invention, the skimming prevention card in which the entire surface of the iron-based metal powder kneaded sheet is covered with the heat-fusible layer increases the data communication distance with the card reader and has a metal plate on the back. Even communication is possible.

  According to the present invention, it is possible to obtain a single-layer skimming prevention card that is thin, is not bulky, and is strong against bending.

  According to the present invention, since the anti-skimming card is composed of a heat-sealing layer composed of a synthetic resin member covering the entire surface of a sheet formed by mixing iron-based powder with silicon and acrylic elastomer, the reader and The communication distance was increased and the reading time was shortened.

  According to the present invention, even when a plurality of cards overlap, communication with the reading device is possible and skimming can be prevented.

  According to the present invention, the sheet formed by mixing silicon powder and acrylic elastomer with iron-based powder is covered with a sheet made of PET, which is a heat-sealing layer, so that it can be made thin, brittle and damaged. It became a skimming prevention card that never happens.

  FIG. 1 is a view for explaining a skimming prevention card in which a kneaded sheet made of iron-based metal powder of the present invention is covered with a heat-sealing layer. In FIG. 1, a skimming prevention card 11 is composed of a sheet 111 made of iron-based metal powder, and a heat fusion layer 112 made of, for example, polyethylene terephthalate (PET) or the like covering the entire surface of the sheet 111. Yes. The sheet 111 made of the iron-based metal powder contains at least silicon in the iron-based metal powder. As the particle size of the iron-based metal powder, one having an average diameter of 50 μm to 75 μm was adopted.

  The mixing ratio of the iron-based metal powder and silicon was 80% to 90% for the iron-based metal powder and 5% to 15% for silicon. The iron-based metal powder having an average diameter of 50 μm to 75 μm was used. Further, the iron-based metal powder and silicon are formed into a sheet shape by a binder made of acrylic elastomer. The iron-based metal powder kneaded sheet has a thickness of 300 μm or more.

  FIG. 2 illustrates an example in which the skimming prevention card is not present and the thickness of the skimming prevention card is compared with a case where there is a single skimming prevention card, a skimming prevention card and a metal plate, and a case where there are a plurality of IC cards. FIG. In FIG. 2, there are no skimming prevention cards, the thickness of the anti-skimming card is 80 μm (S80), the thickness is 130 μm (S130), the thickness is 260 μm (S260), and the thickness is 300 μm (S300). In contrast, in the case of a single IC card, there are a skimming prevention card and a metal plate, and the effectiveness was confirmed in the case of a plurality of skimming prevention cards. The magnetic powder sheet was tested in the case of a single body, a metal plate, and a plurality of skimming prevention cards. As a result, the effectiveness was confirmed when the thickness was 300 μm or more.

  FIGS. 3A to 3C are diagrams for explaining in detail the test method of the skimming prevention card in the present invention. 3A to 3C, a is a skimming prevention card (IC card access controller), b is a non-contact IC card, c is a card reader (for example, RC-S320 manufactured by Sony Corporation), and d is a metal. The board e is a non-contact IC card different from the non-contact IC card b. In FIG. 3A, the non-contact IC card b is placed between the skimming prevention card a and the card reader c. In FIG. 3B, the non-contact IC card b is provided with a metal plate d outside the skimming prevention card a. In FIG. 3C, another non-contact IC card e is provided in place of the metal plate d.

  FIG. 4 shows an example of comparison of communication distances when various tests are performed on the skimming prevention card of the present invention. As a result of the test shown in FIG. 3 (a), it is a bar graph described as “single unit” in FIG. 4, and the communication distance was about 12 mm to 14 mm. As a result of the test shown in FIG. 3B, the bar graph described as “Metal plate test conditions” in FIG. 4 showed that the skimming prevention card had a thickness of 130 μm or more. As a result of the test shown in FIG. 3C, the second card is read and malfunctions at 80 μm, 130 μm, and 260 μm, but the skimming prevention card has a thickness of 300 μm or more, and the communication distance is 8 mm. It became possible.

  As mentioned above, although the Example of this invention was explained in full detail, this invention is not limited to the said Example. The present invention can be modified in various ways without departing from the scope of the claims. The iron-based metal powder and the heat-fusible layer of the present invention can be arbitrarily changed as long as the material can perform the same function as the present invention.

It is a figure for demonstrating the skimming prevention card | curd which covered the kneading sheet | seat consisting of the iron-type metal powder of this invention with the heat sealing | fusion layer. Example 1 In the present invention, there is no skimming prevention card and the thickness of the skimming prevention card. For example, when there are a skimming prevention card alone, a skimming prevention card and a metal plate, a case where a plurality of skimming prevention cards are used is compared. FIG. (A) to (c) are diagrams for explaining in detail a test method for a skimming prevention card according to the present invention. It is the example which compared the communication distance at the time of performing various tests about the skimming prevention card | curd of this invention.

Explanation of symbols

11 ... Skimming prevention card 111 ... Iron-based metal powder 112 ... Thermal fusion layer

Claims (7)

An iron-based metal powder kneaded sheet;
A skimming prevention card comprising: a heat sealing layer made of a synthetic resin member covering the entire surface of the metal powder kneaded sheet.   The skimming prevention card according to claim 1, wherein the iron-based metal powder contains iron and at least silicon.   The skimming prevention card according to claim 1 or 2, wherein the iron-based metal powder is 80% to 90% and silicon is 5% to 15%.   4. The skimming prevention card according to claim 1, wherein an average diameter of the iron-based metal powder is 50 μm to 75 μm.   The skimming prevention card according to any one of claims 1 to 4, wherein the iron-based metal powder is formed as a sheet with a binder mainly composed of an acrylic elastomer.   The skimming prevention card according to any one of claims 1 to 5, wherein a thickness of the iron-based metal powder kneaded sheet is 300 µm or more.   The skimming prevention card according to claim 1, wherein the heat-sealing layer is polyester terephthalate.

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