JPS58101385A - Magnetic card not erasable - Google Patents

Abstract

PURPOSE:To prevent improper use due to forgery, by forming desired information with a magnetic substance to a prescribed location of a card main body with a bar code, imbedding a nonmagnetic substance between the bars to arrange the height, and to coat the card with over sheet and allowing an erase to be kept impossible. CONSTITUTION:A base main body 1 is formed with white opaque hard polyvinyl- chloride, and a desired magnetic substance is coated in the form of bar code 2 on the base so as to form desired information codes. Nonmagnetic substance is imbedded between the clearance of the bar codes 2, the height is arranged and an over sheet 3 is coated. A picture pattern is printed on the over sheet 3 so as to make visual observation of the bar code impossible. Thus, the erase and forgery of information is made impossible, allowing to prevent improper use. The effect of forgery prevention can further be improved, by demagnetizing the bar code 2, magnetizing the code at each reading and demagnetizing the code again after reading.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a non-erasable magnetic card formed by forming a bar code/arm turn that cannot be tampered with on a bank card or the like.

In general, bank cash cards use magnetic cards with information recorded using a magnetic recording method.Since magnetic cards using this magnetic recording method do not show the recorded contents from the outside, they are not suitable for cash cards, etc. Although it is suitable, it can be easily erased by applying a magnetic field to the recorded signal, and once erased, a new false signal is recorded with a magnetic head and used illegally, which has become a major social problem. There is.

In this regard, in the barcode recording method, since the barcode is formed with black paint or the like, it is impossible to erase or rerecord.

However, No. 1 - Code t! Turn is a device that detects the information content recorded by the reflection of light61), and has the disadvantage that the recorded content is exposed due to the light and dark striped pattern of the bar code, so it is used for items such as cash cards where the recorded content must be kept secret. was not adopted.

The present invention has been made in view of the above circumstances, and provides an unerasable magnetic card in which information carrier is a barcode pattern formed of a magnetic material so that it cannot be easily erased on the magnetic card. be.

Hereinafter, this embodiment will be explained in detail based on the attached drawings. In FIG. 1, reference numeral 1 denotes a card body molded from, for example, white opaque hard vinyl chloride. At a predetermined position of the card body 10, T iron oxide is dispersed in an organic solvent together with an organic binder, and a magnetic paint is applied. The code No. 4 turn 2 in which the desired information is encoded is printed.

The mother-cord arm turn 2 is printed on the surface of the card body 10 and has an uneven appearance, which may wear out during use. A filling material 4 is embedded to ensure smooth contact with the reader.

Furthermore, the 1 oversheet 3 is formed of, for example, an organic binder film, and is printed on the card body 1, and a non-magnetic pigment is added thereto to make the 9-parcord arm turn 2 visually indistinguishable. By doing so, the parcode turf 2 is covered and the recorded contents can be kept secret.

i9. The oversheet 3 is printed on the card body 1 and applied to the arm turn 20 portion of the nine parcord or the entire card body 1.

As shown in FIG. 5, if the card is magnetized in the magnetic card reader and demagnetized by the magnetizing device 5 after reading by the magnetic head 6, the parcode turf 2 is
Since it is not magnetic, the concealment effect increases instantly.

4. As shown in FIG. 6, by arranging a magnetizing means such as a permanent magnet 7 on the side opposite to the magnetic head 60 with respect to the barcode pattern main body l, the arm turn 2 of the nine-parcode, which becomes a magnetic material, can be turned with the magnetic head 6. Can be read. Therefore, the magnetic material is not limited to the conventional high coercivity A9-force.

As explained in detail above, the magnetic card according to the present invention has a card body made of a non-magnetic material, and a parcode arm turn made of a magnetic material that cannot be easily erased as an information carrier. It is made by covering an oversheet made of a non-magnetic material with an organic bonding material film that makes it impossible to distinguish the nine turns of the parcode from the outside, and since it is difficult to falsify the information, there is no risk of unauthorized use. ◇That is, since the presence of the barcode/mother turn formed from the magnetic material of the present invention can be detected magnetically, there is no need to expose the contents with bright and dark stripes, unlike conventional barcodes. This is because the conventional barcode pattern detects the recorded content by reflecting light or the like.

First, in the present invention, even if the stripes of a barcode are coated with a non-magnetic substance, particularly a substance that coats and crushes magnetic materials, making it impossible to distinguish the stripes from their appearance, the stripes themselves are made of magnetic material. Since the brightness of the stripes can be changed to indicate the presence or absence of magnetism, the contents can be read.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a magnetic card showing an embodiment of the present invention;
2 is a sectional view of the main part of FIG. 1, FIG. 3 is a plan view of a magnetic card showing another embodiment of the present invention, FIG. 4 is a sectional view of FIG. 3, and FIGS. 5 and 6. FIG. 2 is a schematic diagram showing another embodiment of the present invention. 1- Card body, 2... Par chord number 9 turns, 3
...Oversheet. Patent applicant Tokyo Denki Kagaku Kogyo Co., Ltd. Agent Patent attorney Hideaki Sato Figure 5 Figure 6

Claims (4)

[Claims] (1) A non-erasable magnetic card characterized in that the information carrier is a barcode pattern in which desired information is encoded with magnetic material at a predetermined position on the card body. (2) The non-erasable magnetic card according to claim (1), wherein the parcode Noreen is coated with a non-magnetic material. (3) The non-erasable magnetic card according to claim (1), wherein the bar code/mother turn is coated so that it cannot be identified by appearance. (4) The non-erasable magnetic card according to claim (1), wherein the magnetic material has a coercive force of 101) Oersteds or less.