JPH11242728A - Magnetic recording card - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a card which has high reliability because of alteration prevention, does not have any limitation to data updation and has high use value by adding a magnetic storage region that stores magnetic data to a capacitive data card. SOLUTION: A card substrate 1 is made from synthetic resin, such as polyethylene terephthalate resin, poly vinyl chloride resin and thermosetting polyester resin. A magnetic recording layer 2 is applied with magnetic coating material composed of magnetic fine grain dispersing liquid, such as γ-FE2 O3 , FE3 O4 , CrO2 , Fe and Fe-Cr. A covering layer 3 is provided on an upper layer part of the layer 2 and prevents the interference of print to a design and a print layer 4 is usually formed by ink and what has excellent adhesive property to a lower layer is used. An anchor layer 5 makes the adhesion of a lower layer and a conductive layer 6 satisfactory, stabilizes film thickness and makes resistance value fixed. The layer 6 is a pattern-shaped capacitor electrode part that becomes a capacitive data recording part and is protected against external damage when carried and used by a protective 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic recording type card in which a fuse is incorporated in a circuit of the card and to which capacity data indicating data content is added according to the state of the fuse, and more particularly to a prepaid card and a toll ticket. The present invention relates to a magnetic recording card having a function of determining the authenticity of cards such as an admission ticket and a function of preventing unauthorized use.

[0002]

2. Description of the Related Art Various functions are added to current cards to prevent unauthorized use such as authenticity, duplication, etc. The authenticity judgment function used in current magnetic recording cards is magnetic recording. By providing on the surface a magnetic barcode made by combining a soft magnetic material having a coercive force of 40 (Oe) or less and a filling material having no coercive force, each magnetic recording card can be easily forged or altered. I'm preventing.

In addition to magnetic barcodes, fixed data such as optical barcodes and IR barcodes (barcodes for infrared detection) are added, and a magnetic shield layer made of a soft magnetic material having high magnetic permeability is provided on the magnetic recording layer. To prevent reuse by providing a punching hole in a part of the card at the time of use, and special measures such as special coding of data and data scrambling from the software aspect, magnetic card To prevent unauthorized use of certain types.

[0004] However, despite measures to prevent unauthorized use of magnetic cards as described above, in today's widespread society of cards, various alterations,
Falsification and unauthorized use have become a problem, and new countermeasures and systems are constantly being demanded.

[0005] The present invention meets the above-mentioned demand, and a capacitive data card having an electrode part forming a part of a capacitor circuit is receiving attention.

[0006] This prepaid card system of the capacity type was disclosed on July 21, 1981 in US Patent No. Registered as 4280119. In addition, International Application Publication WO95 / 142 on May 26, 1995
The prepaid card system described in the specification of No. 85 incorporates a fuse in the circuit of the capacitive data card, and the fuse has a predetermined resistance value when it is in an intact (non-burned) state. FIG. 1 shows a system in which when a fuse is burned out, the resistance value increases to infinity, so that a bit of data is represented by the resistance state of the fuse.

This capacitive data card is shown in FIG.
As shown in FIG. 0, a circuit 13 having a capacitor can be formed only when the card unit 10 is integrated with the sensor unit 12 formed on the reading device side.

The card unit 10 includes a resistor R serving as a fuse.
11 and electrode portions 11a and 11b forming a part of a capacitor to be connected and connected to each end of the resistor R11. An opposite electrode of a capacitor connected and connected to each terminal of the power supply 14 is formed in the sensor portion 12. The respective electrode portions 12a,
When the card section 10 is set in the sensor section 12 (write head) of the input / output device, the counter electrodes 11a and 12a and the counter electrodes 11b and 12b An air condenser 13 facing each other at a distance d and sandwiching air between the facing sides;
A closed circuit having a and 13b is formed.

In the closed circuit 13 thus formed, a high voltage V is applied to the resistor R11 (fuse) by the power source 14.
, The resistor R11 is burned out by the high current, so that the circuit using the resistor R11 is used, and the resistor R11 that has not been burnt becomes an unused bit.

As described above, one resistor R1 of the card unit 10
A 1-bit signal is given by one closed circuit of 1 and a data card capable of storing a signal having a required number of digits by forming an arbitrary number of closed circuits in the card unit 10 can be formed. Become like

In the above-mentioned capacitive data card, the bit can be changed from unused to used by burning off the resistor R11. Therefore, the reverse data reproduction (returning the burnt-out fuse to the original state) is easily performed. Can not do.

Therefore, although data reproduction is not easy, there is an advantage that falsification is prevented and reliability is high, but a certain limit is imposed on updating of data stored in the card, and its utility value is increased. However, there was a problem that it could not be fully exhibited.

[0013]

By the way, in order to solve the above-mentioned problems, a configuration having a magnetic storage area for storing magnetic data in a capacitive data card has been considered. For example, Japanese Patent Application Laid-Open Nos. 9-
No. 305721.

The present invention is a card in which a magnetic storage area for storing magnetic data is added to the above-mentioned capacitive data card. The card has the advantage that the data is not easily reproduced, so that tampering is prevented and the reliability is high. An object of the present invention is to obtain a card having a high use value in which no limitation is imposed on updating data stored in the card.

[0015]

Means for Solving the Problems A first invention of the present invention is:
A magnetic recording layer is provided on at least one surface of the card base material, and a conductive layer is provided on the other surface, and the conductive layer is patterned so that the card input / output device forms one or more closed circuits via an air capacitor. A magnetic recording card characterized by being formed in a shape.

Further, according to the present invention, in the magnetic recording card according to the first aspect, a concealing layer is provided on the magnetic recording layer, a printing layer is provided on the concealing layer as necessary, and the conductive layer is provided via an anchor layer. And a protective layer provided on the conductive layer.

Next, a second aspect of the present invention is to provide a magnetic recording layer and a heat-sensitive recording layer sequentially on at least one side of a card base material, and a conductive layer on the other side. A magnetic recording card formed in a pattern so as to form one or a plurality of closed circuits through the magnetic recording card.

According to the present invention, in the magnetic recording card of the second aspect, a concealing layer is provided between the magnetic recording layer and the heat-sensitive recording layer, and a printing layer is provided on the heat-sensitive recording layer as necessary. And a magnetic recording card in which the conductive layer is provided via an anchor layer, and a protective layer is provided on the conductive layer.

Next, in a third aspect of the present invention, a magnetic recording layer and a conductive layer are sequentially provided on at least one side of a card base material, and the conductive layer is provided with one or a plurality of closed layers via an air capacitor by a card input / output device. A magnetic recording card formed in a pattern so as to form a circuit.

The present invention also provides the magnetic recording card according to the third aspect, wherein an anchor layer is provided between the magnetic recording layer and the conductive layer, and a protective layer is provided on the conductive layer. This is a magnetic recording card provided with a printing layer on the other surface as required.

Next, in a fourth aspect of the present invention, a magnetic recording layer is provided on at least one surface of a card base material, and a dark color printing layer and a conductive layer are sequentially provided on the other surface. A magnetic recording card which is formed in a pattern so as to form one or more closed circuits via a capacitor.

The present invention also provides the magnetic recording card according to the fourth aspect, wherein a concealing layer is provided on the magnetic recording layer, a printing layer is provided on the concealing layer as needed, and a protective layer is provided on the conductive layer. It is a magnetic recording card provided.

Next, a fifth aspect of the present invention is to provide a card base material in which a magnetic recording layer and a heat-sensitive recording layer are sequentially provided on at least one side, and a dark color printing layer and a conductive layer are sequentially provided on the other side. A magnetic recording card which is formed in a pattern so as to form one or more closed circuits via an air capacitor by an input / output device.

According to the present invention, in the magnetic recording card of the fifth aspect, a concealing layer is provided between the magnetic recording layer and the heat-sensitive recording layer, and a printing layer is provided on the heat-sensitive recording layer as needed. And a magnetic recording card provided with a protective layer on the conductive layer.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A magnetic recording card according to the present invention is shown in FIG.
This will be described in detail below with reference to side sectional views shown in FIGS.

FIG. 1 is a side sectional view showing a laminated structure according to an embodiment of a magnetic recording card. A magnetic recording layer 2, a concealing layer 3, and a printing layer 4 are arranged in this order on one surface (back surface) of a card substrate 1. And an anchor layer 5, a conductive layer 6, and a protective layer 7 are provided in this order on the other surface (surface).

FIG. 2 is a side sectional view showing a laminated structure according to another embodiment of the magnetic recording card. The magnetic recording layer 2, the concealing layer 3, and the heat-sensitive recording layer 8 are provided on one side (back side) of the card base 1. , A printing layer 4 is provided in this order, and an anchor layer 5, a conductive layer 6, and a protective layer 7 are provided in this order on the other surface (front surface).

FIG. 3 is a side sectional view showing a laminated structure of a magnetic recording card according to another embodiment.
The magnetic recording layer 2, the anchor layer 5, the conductive layer 6, and the protective layer 7 are provided in this order on one surface (back surface), and the printed layer 4 is provided on the other surface (front surface).

FIG. 4 is a side sectional view showing a laminated structure of a magnetic recording card according to another embodiment.
The magnetic recording layer 2, the concealing layer 3, and the printing layer 4 are provided in this order on one side (back side), and the dark printing layer 9, the conductive layer 6, and the protection layer 7 are provided in this order on the other side (front side). is there.

FIG. 5 is a side sectional view showing a laminated structure of a magnetic recording card according to another embodiment.
The magnetic recording layer 2, the concealing layer 3, the heat-sensitive recording layer 8, and the printing layer 4 are provided in this order on one surface (back surface), and the dark color printing layer 9, the conductive layer 6, and the protection layer 7 are provided on the other surface (front surface). It is provided in order.

In the magnetic recording card having the laminated structure shown in FIG. 3, the magnetic recording layer 2 plays the same role as the dark print layer 9, and in this structure, the pattern of the capacitive data recording section 20 is visually observed. Since it is difficult to confirm the forgery, a further forgery prevention effect can be expected.

The card substrate 1 is made of polyethylene terephthalate resin (thermoplastic PET) generally used for prepaid cards, polyvinyl chloride resin, thermosetting polyester resin, polycarbonate resin, polymethacryl resin, polystyrene resin, or the like. A synthetic resin may be used, and a ceramic plate, a glass plate, a porcelain plate, a porcelain plate and the like may be used as necessary.

The magnetic recording layer 2 is made of, for example, γ-Fe_TwoO_Three,
Co deposited γ-Fe_TwoO_Three, Fe_ThreeO _Four, CrO_Two, F
e, Fe-Cr, Fe-Co, Co-Cr, Co-N
i, Mn-Al, Ba ferrite, Sr ferrite, etc.
A magnetic paint composed of a magnetic fine particle dispersion is applied and provided.

Generally, the coercive force of a magnetic recording medium used for a magnetic recording medium such as a prepaid card is 300 to 3000.
(Oe), the residual magnetic flux is 1.0 to 2.0 (Maxwell)
/ Cm).

The concealing layer 3 is provided so that the color of the magnetic paint of the magnetic recording layer 2 does not hinder the design of the print layer provided thereon due to the brown or black color. Concealment layer 3
May be composed of ink used for normal printing, for example, acrylic, polyester, polyurethane, epoxy-based resin, for example, a mixture of pigments such as titanium oxide, magnesium oxide, barium sulfate, etc. There are known methods for forming the concealing layer, such as gravure printing, screen printing, offset printing, and the like, which can be appropriately selected according to the application.

The printing layer 4 may be usually formed of an ink, and in particular, a layer having good adhesion to the lower layer can be used. The method for forming the printing layer includes a conventionally known printing method such as a gravure printing method, a screen printing method, and an offset printing method, which can be appropriately selected according to the application.

The anchor layer 5 improves the adhesion between the lower layer and the conductive layer 6 and stabilizes the thickness of the conductive layer 6.
Are provided to make the resistance value of the constant.

The anchor layer 5 may be made of, for example, an acrylic, polyester, or polyurethane resin as an ink. The method of forming the anchor layer 5 may be a conventionally known gravure printing method, screen printing method, offset printing method, or the like. There is a printing method such as a printing method, which can be appropriately selected according to the application.

The conductive layer 6 serves as a capacitive data recording portion (the recording portion 2 shown in FIG. 6 described later) of the magnetic recording card of the present invention.
0) which is a patterned capacitor electrode portion having electrical conductivity, for example, C, Al, Zn, Fe, Ag, A
There are u, Cu, and the like, and a method for forming this layer can be formed by a conventionally known vacuum evaporation method, sputtering method, or the like, and can be appropriately selected depending on the application.

The conductive layer 6 formed on the card substrate 1 shown in the side sectional views of FIGS. 1 to 5 is formed by applying a heat ray beam to the conductive film previously formed on the card substrate 1 by irradiating a heat laser beam or the like. It is formed by melting and removing in a pattern by scanning.

The protective layer 7 has a capacity data recording section 20 (FIG. 6) formed in a pattern by the conductive layer 6.
Is applied to protect the card from being injured when carrying or using the card, and may be made of ordinary printing ink. For example, acrylic, polyester, polyurethane, epoxy A resin such as a resin may be used as an ink.
There are conventionally known printing methods such as a gravure printing method, a screen printing method, and an offset printing method, which can be appropriately selected according to the application.

The thermosensitive recording layer 8 is provided for visually displaying (visually displaying) the magnetic information of the magnetic recording card, and is composed mainly of a polymer binder and a thermosensitive coloring agent. An ink obtained by dissolving a polymer binder in a solution in which a thermosensitive coloring agent is dispersed in a solvent is formed by a conventionally known printing method such as a gravure printing method, a screen printing method, and an offset printing method.

Examples of the polymer binder include methacrylic resins such as hydroxyethylcellulose, carboxymethylcellulose, polyvinyl alcohol, styrene-maleic acid copolymer, polymethyl methacrylate, and copolymers thereof.
Polystyrene, acrylic, styrene copolymer, polyester resin, ABS resin, nitrocellulose and the like can be used.

The heat-sensitive coloring agents are roughly classified into two types: a metal compound coloring type and a dye coloring type. Specifically, the metal compound coloring types include ferric stearate, ferric myristylate and tannic acid, and gallic acid. Combination with acid, Ni, Co, Cu salts of stearic acid, CaS, SrS, B
A combination with aS, a combination with silver oxalate spiroindine, and the like can be used.

On the other hand, the dye coloring type is a combination of a developer having a phenolic hydroxyl group and a colorless leuco dye, and as a developer, 4,4'-isopropylidenephenol, benzyl-P-hydroxybenzoate,
4,4'-dihydroxy-3,5'-diallyldiphenylsulfonmethyl-bis (hydroxyphenyl) acetate, gallic acid ester, P-phenylphenol and the like.

The leuco dyes include crystal violet lactone, 3-indolino-3-P-dimethylaminophenyl-6-dimethylaminophthaloid, 3-dimethylamino-7-chlorofluoran, 2- (2-fluorophenylamino) -6-diethylaminofluoran, 2
-(2-fluorophenylamino) -6-di-n-butylaminofluoran, 3-diethylamino-7-cyclohexylfluoran, 3-diethylamino-5-methyl-7-t-butylolane and the like.

The dark print layer 9 is provided to make it difficult to visually confirm the pattern when the capacitive data recording section 20 is formed on the conductive layer 6 by a heat laser beam. At the same time, it has a role as the anchor layer 5 of the conductive layer 6 and may be composed of ordinary ink, and preferably has an ink having a dark color such as black or indigo. There are printing methods such as a printing method, a screen printing method and an offset printing method, which can be appropriately selected according to the application.

The capacity data recording section 20 formed on the magnetic recording card of the present invention will be described below with reference to FIGS.

FIG. 6 is a plan view of the capacitive data recording section 20 formed in a pattern. The non-conductive section 35 is formed in a pattern by dissolving and removing the conductive film of the conductive layer 6 in a pattern. In the region other than the conductive portion 35, the capacitor electrode portions 21 and 22 on the card side by the conductive layer 6 and the fuse 33 (resistor R11 shown in FIG.
(Corresponding portion) is formed in a pattern.

The conductive layer 6 has a surface resistance of 10 to 10.
By forming a conductive film so as to have a resistance of 60 Ω / □, favorable electrode portions 21 and 22 and a fuse portion 33 can be formed. Note that the pattern shape of the capacitive data recording unit 20 is not particularly limited to the shape shown in FIG. 6 in the present invention.

The electrode portions 21 are regularly arranged as shown in FIG.
An array of small rectangular blocks (for example,
Block), a small rectangular block-shaped electrode
Part P _0.0~ P_0.9, P_0.A~ P_0.F, P_1.0~ P_1.9,
P_1.A~ P_1.F, P_2.0~ P _2.9, P_2.A~ P_2.F, P
_3.0~ P_3.9, P_3.A~ P_3.F, P_4.0~ P_4.9, P
_4.A~ P_4.F, P_5.0~ P_5.9, P_5.A~ P_5.FIs sideways
Are arranged regularly in the vertical and vertical directions.

The electrode portions 22 are opposed to each other as shown in FIG.
The electrode part P facing_0.0And P_0.1, Electrode part P_0.2And P
_0.3, Electrode part P_0.4And P_0.5, ..., electrode part P_0.EWhen
P_0.FAnd the formation region of the common electrode formed between
Continuous line-shaped common electrode portion P that is long in the horizontal direction₀Is formed
ing. Similarly, the electrode portion P_1.0And P_1.1, Electrode part P
_1.2And P_1.3, Electrode part P_1.4And P_1.5, ..., electrode part
P_1.EAnd P_1.FBetween the continuous line-like
Common electrode part P₁Are formed, and so on.
Continuous line-shaped common electrode part P_Two~ P_FiveAre formed.

Then, the individual electrode portions P _{0.0 to} P _5.F
Via the fuse portion 33 formed by a conductive film having a width, respectively connected individual common electrode P ₀ to P ₅ electrically.

FIG. 7 is a partially enlarged plan view of a portion Y in FIG. 6, in which electrode portions P _0.2 and P _0.3 are formed with a common electrode portion P ₀ interposed therebetween, and a narrow width fuse portion 33 (corresponding to resistor R11) is formed. Part) is the electrode part P _0.2 , the common electrode part P ₀ , and the electrode part P
_0.3 and is interposed between the common electrode portion P _0.

The individual electrode portions P _{0.0 to} P shown in FIG.
_5.F is the opposite electrode 12a and the predetermined distance to form a capacitor 13a in the sensor (writing head) of the input-output device 12 to face each other with a d shown in FIG. 10, each of the common electrode P ₀ to P ₅ are adapted to be opposed to each other the counter electrode 12b and the predetermined distance to form a capacitor 13b in the sensor (writing head) of the input-output device 12 shown in FIG. 10 at a d.

Each of the electrode portions P _{0.0 to} P _5.F of the capacitive data recording portion 20 patterned on the conductive layer 6 of the magnetic recording card 11 of the present invention is _connected to the sensor portion 12 of the input / output device as shown in FIG. The case where the bit data is written (the bit is in the used state) by being installed opposite to each other will be described below.

FIG. 8 shows the electrode portion P _0.0 and the common electrode portion P ₀ of the individual capacitor electrode portions P _{0.0 to} P _5.F of the capacitive data recording portion 20 of the magnetic recording card 11 of the present invention.
Sensor part 1 of the input / output device with respect to the electrode part P _0.1
Electrode portion 12a which is a triple capacitor electrode portion provided in
1 is a circuit diagram corresponding to two bits when the common electrode unit 12b and the electrode unit 12a-2 face each other.

One of the two-bit circuits (the left circuit) is a power supply terminal to which the capacitors 13a-1 and 13b, the resistor R11-1 as the fuse unit 33, and the high-voltage power supply unit 14 are connected. The other bit circuit (the circuit on the right) is a power supply terminal unit to which the capacitor 13a-2, the capacitor 13b, the resistor R11-2 as the fuse unit 33, and the high-voltage power supply unit 14 are connected. 14-2. Note the capacitor 13b is constituted by a common electrode portion 12b of the electrode portion 11b and the sensor unit 12 side is a common electrode portion P ₀ of the card unit 11 side.

First, when a high-voltage power supply section 14 of the sensor section 12 is connected to one of the bit circuits and its power supply terminal section 14-1 to perform a write operation, the bit circuit becomes a closed circuit and the bit circuit becomes a closed circuit. A high current flows through the resistor R11-1 which is the fuse portion 33 in the inside, and the resistor R11-1 is burned out (disconnected), and this bit circuit is used.

Next, when the other bit circuit is connected to the high-voltage power supply section 14 of the sensor section 12 at its power supply terminal section 14-2 and performs a write operation, this bit circuit becomes a closed circuit, The resistor R11-2, which is the fuse portion 33 in the circuit, burns (disconnects) due to the flow of a high current, and the bit circuit is also used. As shown in the figure, one of the power supply units 14 may be operated by sliding the power supply unit 14 at the position of each power supply terminal unit in the direction of the arrow, or a plurality of power supply units 14 may be provided and each of the power supply units 14 may be sequentially operated. You may make it operate.

In this way, the capacity data recording
Other electrode portions P of the recording portion 20_{0. Two}, P_0.3, Electrode part
P_0.4, P_0.5, Electrode part P_0.6, P_0.7~ Electrode section
P_0.E, P _0.F, And other electrode parts P_1.0~ P_5.FAgainst
However, the sensor unit 12 of the input / output device faces
To form a closed circuit for 2 bits,
Connect the high voltage power supply 14 of the sensor 12 to the power supply terminal
By performing a write operation with
Burns out the resistance that is the fuse part 33 in the
Each bit circuit can be used.

FIG. 9 shows a key of the magnetic recording card 11 of the present invention.
Individual electrode portions P of the capacitive data recording section 20_0.0~
P_5.FOf the electrodes P_0.0, P_0.2,
P_0.4, P _0.6Provided in the sensor unit 12 of the input / output device
Five electrode units 12a (common electrode), 12b-1, 12b
-2, 12b-3, and 4b when 12b-4 face each other
And a closed circuit for 4 bits.
While forming, as described above,
Writing by connecting the high voltage power supply unit 14 of the server unit 12
By performing the operation, the hue in each bit circuit is
Resistances R11-1, R11-2,
R11-3, R11-4 burned out, 4 bit circuits
Can be used.

In addition, the write operation can be performed by appropriately setting the configuration of the electrode section of the sensor section 12 of the input / output device, and the form of the closed circuit of the bit circuit is particularly limited in the present invention. Not something.

[0064]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the magnetic recording card of the present invention will be described.

Example 1 A magnetic recording card 11 of the first invention shown in FIG. 1 was manufactured as follows. 1) Card base material (thickness: 188 μm) White polyethylene terephthalate (E-22; manufactured by Toray Industries, Inc.) 2) Mixing ratio of coating liquid for forming a magnetic recording layer Magnetic powder (1750 (Oe); barium ferrite) 100 weight Part vinyl chloride-vinyl acetate copolymer (VAGF; manufactured by Union Carbide) 20 parts by weight Polyurethane resin (Nipporan 2304; manufactured by Nippon Polyurethane Industry Co., Ltd.) 30 parts by weight hexamethylene diisocyanate (Coronate HX; Nippon Polyurethane Industry Co., Ltd.) )) 2 parts by weight Carbon black ($ 3000; manufactured by Mitsubishi Chemical Corporation) 5 parts by weight Dispersant (Garfax RE-610; manufactured by Toho Chemical Co., Ltd.) 3 parts by weight Diluent solvent (toluene / methyl ethyl ketone (MEK)) / Methyl isobutyl ketone (MIBK)) 100 parts by weight Formation of magnetic recording layer The coating liquid is applied to one side (back side) of the card base material 1 by microgravure printing at a coating liquid thickness of about 15 μm, and while applying a magnetic field orientation in a horizontal magnetic field of about 3000 Gauss. Then, hot air of 100 ° C. was supplied to the coating liquid film for 3 minutes to evaporate the diluting solvent and dry the coating liquid film to form the magnetic recording layer 2. 3) Mixing ratio of coating liquid for forming concealing layer 100 parts by weight of gravure white ink (NEWLP Super R631 white; manufactured by Toyo Ink Mfg. Co., Ltd.) Diluting solvent (SL302 solvent; manufactured by Toyo Ink Mfg. Co., Ltd.) A coating liquid for forming is coated on the magnetic recording layer 2 by a gravure printing method to a coating liquid thickness of about 4 μm,
Hot air at 110 ° C. was supplied to the coating liquid film for 3 minutes to evaporate the diluting solvent and dry the coating liquid film to form the concealing layer 3. 4) Printing layer forming ink Offset printing process ink (FDOL yellow, red,
Indigo, black, each color TP black (ultraviolet curable ink); manufactured by Toyo Ink Manufacturing Co., Ltd.) A pattern is printed on the concealing layer 3 by the offset printing method using the process ink for offset printing, and the pattern portion is formed. The printed layer 4 was formed by drying with ultraviolet irradiation. 5) Coating liquid for forming anchor layer Polyurethane resin (Vylon UR-1400; manufactured by Toyobo Co., Ltd.) 100 parts by weight Diluent solvent (methyl ethyl ketone (MEK) / toluene) Appropriate amount The other surface (surface) of the material 1 is coated by a gravure printing method with a coating liquid having a film thickness of about 3 μm, and hot air at 110 ° C. is supplied to the coating liquid film for 40 seconds to evaporate the diluting solvent. Then, the coating liquid film was dried to form the anchor layer 5. 6) Metallic material for forming conductive layer Aluminum (purity of 99.7% or more) A conductive layer 6 having a thickness of about 160 ° was formed on the anchor layer 5 using the aluminum by a vacuum evaporation method. 7) Pattern formation of a capacitive data recording portion by a thermal laser beam Subsequently, the conductive layer 6 is irradiated with a YAG laser beam (beam) to cause the conductive layer 6 to disappear in a pattern, and the portion lost in the pattern to an insulating pattern. Data recording section 2 composed of a patterned conductive layer 6 serving as a section
0 (see FIG. 6). 8) Coating solution for forming protective layer Polyester-based resin (Elitel EU-3380; manufactured by Unitika Ltd.) 25 parts by weight Diluting solvent (methyl ethyl ketone (MEK) / toluene) 75 parts by weight The coating is performed on the capacitive data recording section 20 composed of the patterned conductive layer 6 by a gravure printing method with a coating liquid film thickness of about 5 μm, and hot air of 110 ° C. is applied to the coating liquid film for 40 seconds. By supplying the diluted solvent and evaporating the diluting solvent and drying the coating liquid film to form the protective layer 7, the magnetic recording layer 2 is formed on one side (back side) of the card substrate 1 and the capacitive data recording section is formed on the other side (front side). A magnetic recording card 11 of the first invention (see FIG. 1) including the 20 patterned conductive layers 6 was produced.

<Embodiment 2> The magnetic recording card 11 of the second invention shown in FIG. 2 was manufactured as follows. Same as Example 1 except that a heat-sensitive recording layer forming coating liquid was applied between the concealing layer 3 and the printing layer 4 in the above-mentioned Example 1 (see FIG. 1) to form a heat-sensitive recording layer 8. Thus, the magnetic recording card 11 of the second invention (see FIG. 2) was manufactured. 1) Coating solution for forming heat-sensitive recording layer Dye (TG-11; manufactured by Nippon Kayaku Co., Ltd.) 10 parts by weight Developer (TG-SA; manufactured by Nippon Kayaku Co., Ltd.) 20 parts by weight Methacrylic resin (BR) -56; manufactured by Mitsubishi Rayon Co., Ltd.) 70 parts by weight Toluene 70 parts by weight The coating liquid for forming a heat-sensitive recording layer was coated on the concealing layer 3 in Example 1 by a gravure printing method to a film thickness of about 5 μm. The coating was set, and hot air at 70 ° C. was supplied to the coating liquid film for 90 seconds to evaporate the diluting solvent and dry the coating liquid film to form the heat-sensitive recording layer 8.

<Embodiment 3> A magnetic recording card 11 of the fourth invention shown in FIG. 4 was manufactured as follows. The other surface (front surface) of the card substrate 1 in the first embodiment (see FIG. 1).
A magnetic recording card 11 of the fourth invention (see FIG. 4) was produced in the same manner as in Example 1 except that a dark printing ink was applied instead of the anchor layer 5 to form a laminated printing layer 9. did. 1) Ink for forming a dark color printing layer Gravure black ink (NEWLP Super R92 Black; manufactured by Toyo Ink Mfg. Co., Ltd.) 100 parts by weight Diluent solvent (SL302 solvent; manufactured by Toyo Ink Mfg. Co., Ltd.) 1), the other surface (front surface) of the card substrate 1 is coated with a dark printing ink by a gravure printing method at a coating ink film thickness of about 2 μm.
Hot air at 10 ° C. was supplied for 40 seconds to evaporate the diluting solvent and dry the coating ink film, thereby forming the dark print layer 9.

[0068]

The magnetic recording card according to the present invention is a card in which a magnetic data storage area for storing magnetic data is added to a capacitive data card, and one or more planar capacitors having a fuse mounted thereon as a capacitive data recording section. When the electrode portion faces a sensor portion of an input / output device (reader writer) provided with the other electrode portion facing the other side of the planar capacitor, a capacitor and a fuse are included. A closed circuit is formed.

Each capacitor is assigned as a recording unit for each 1-bit data in a protocol between the input / output device and the card, and the input / output device includes a capacitor and a fuse facing the sensor unit of the magnetic recording card. Each time 1-bit data is used in a closed circuit, the fuse connected to the capacitor corresponding to the bit data is burned out and one bit is used. The number of capacitors with unburned fuses is present. Represents the number of unused bits.

Therefore, compared to the conventional magnetic recording card of the punching method, there is an advantage that data reproduction and falsification are more difficult, and the reliability of the card is improved. Since the recording layer is also provided, there is no restriction on the recording capacity of data stored on the card, data update, and the like, so that the card is highly useful.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing an embodiment of a magnetic recording card according to a first invention having a capacitive data recording unit.

FIG. 2 is a side sectional view showing an embodiment of the magnetic recording card of the second invention having a capacitive data recording unit.

FIG. 3 is a side sectional view showing an embodiment of a magnetic recording card according to a third invention provided with a capacitive data recording section.

FIG. 4 is a side sectional view showing an embodiment of a magnetic recording card according to a fourth invention having a capacitive data recording unit.

FIG. 5 is a side sectional view showing an embodiment of a magnetic recording card according to a fifth invention having a capacitive data recording unit.

FIG. 6 is a schematic plan view illustrating an arrangement of electrodes of a capacitive data recording unit in the magnetic recording card of the present invention.

FIG. 7 is a partially enlarged plan view of an electrode section in a capacitive data recording section of the magnetic recording card of the present invention.

FIG. 8 is a schematic side view of a card and an input / output device for explaining an example of a writing operation to a capacitive data recording section of the magnetic recording card of the present invention.

FIG. 9 is a schematic side view of a card and an input / output device for explaining another example of a writing operation to a capacitive data recording section of the magnetic recording card of the present invention.

FIG. 10 is a schematic side view of a card including a capacitive data recording unit and an input / output device for explaining a general capacitive data card system.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Card base material 2 ... Magnetic recording layer 3 ... Concealment layer 4 ... Printing layer 5 ... Anchor layer 6 ... Conductive layer 7 ... Protective layer 8 ... Thermal recording layer 9 ... Deep printing layer 10 ... Card part 11 ... Capacitive data recording Magnetic recording card 11a, 11b having card portion 12a card portion side electrode portion 12 input / output device sensor portion 12a, 12b sensor portion side electrode portion 13 capacitor circuit 13a, 13b capacitor 14 power supply unit 20 magnetism Capacitive data recording section of recording card 21, 22 Card side electrode section 33 Fuse section 35 _Non- conductive section P _{0.0 to} P _0.9 , P _{0.A to} P _0.F , P _{1.0 to} P _1.9 , P
_{1.A ~P 1.F, P 2.0 ~P 2.9} , P 2.A ~P 2.F, P
_{3.0 to} P _3.9 , P _{3.A to} P _3.F , P _{4.0 to} P _4.9 , P
_{4.A ~P 4.F, P 5.0 ~P 5.9} , the electrode portions of the P _5.A ~P _5.F ... card side

Continued on the front page (51) Int.Cl. ⁶ Identification code FI G06K 19/00 B

Claims (10)

[Claims] 1. A magnetic recording layer is provided on at least one surface of a card base material, and a conductive layer is provided on the other surface, wherein the conductive layer is provided by a card input / output device via one or more closed circuits via an air capacitor. A magnetic recording card, which is formed in a pattern such that 2. A method according to claim 1, wherein a concealing layer is provided on the magnetic recording layer, a printing layer is provided on the concealing layer if necessary, the conductive layer is provided via an anchor layer, and a protective layer is provided on the conductive layer. Item 7. A magnetic recording card according to Item 1. 3. A magnetic recording layer and a heat-sensitive recording layer are sequentially provided on at least one surface of a card base material, and a conductive layer is provided on the other surface. A magnetic recording card formed in a pattern so as to form a plurality of closed circuits. 4. A concealing layer is provided between the magnetic recording layer and the heat-sensitive recording layer, a printing layer is provided on the heat-sensitive recording layer as needed, and the conductive layer is provided via an anchor layer. 4. The magnetic recording card according to claim 3, wherein a protective layer is provided on the layer. 5. A magnetic recording layer and a conductive layer are sequentially provided on at least one surface of a card base material, and the conductive layer is patterned into one or a plurality of closed circuits via an air capacitor by a card input / output device. A magnetic recording card formed in a shape. 6. A method according to claim 1, wherein an anchor layer is provided between the magnetic recording layer and the conductive layer, a protective layer is provided on the conductive layer, and a print layer is provided on the other surface of the card base as required. Item 6. A magnetic recording card according to Item 5. 7. A magnetic recording layer is provided on at least one surface of a card base material, and a dark color printing layer and a conductive layer are sequentially provided on the other surface. A magnetic recording card formed in a pattern so as to form a plurality of closed circuits. 8. The magnetic recording card according to claim 7, wherein a concealing layer is provided on the magnetic recording layer, a printing layer is provided on the concealing layer as needed, and a protective layer is provided on the conductive layer. 9. A magnetic recording layer and a heat-sensitive recording layer are sequentially provided on at least one surface of a card base material, and a dark color printing layer and a conductive layer are sequentially provided on the other surface. A magnetic recording card formed in a pattern so as to form one or a plurality of closed circuits through the card. 10. A concealing layer is provided between the magnetic recording layer and the heat-sensitive recording layer, a printing layer is provided on the heat-sensitive recording layer as needed, and a protective layer is provided on the conductive layer. A magnetic recording card as described.